Document:

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                                                                   EXHIBIT 10.12

                   MEMBRANE MANUFACTURE AND SUPPLY AGREEMENT

     This Membrane Manufacture and Supply Agreement (this "Agreement") is
entered into as of March 31, 2001, between Millipore Corporation ("Millipore"),
a Massachusetts corporation with its principal place of business at 80 Ashby
Road, Bedford, MA 01730, andMykrolis Corporation ("Mykrolis"), a Delaware
corporation with its principal place of business at Patriots Park, Bedford, MA
01730.

                                   RECITALS

     1.    Millipore currently owns all of the issued and outstanding common
stock of Mykrolis.

     2.    Millipore and Mykrolis have entered into a Master Separation and
Distribution Agreement as of March 28, 2001 (the "Master Agreement") under
which, among other things, the business of Millipore's Microelectronics Division
is to be taken over by, and the assets and liabilities associated therewith are
to be transferred to and assumed by, Mykrolis at the Separation Date (as defined
in the Master Agreement).

     3.    After the Separation Date, in order to enable Millipore and Mykrolis
to carry on their respective businesses as separate companies, Millipore and
Mykrolis desire to provide for a manufacturing and supply arrangement relating
to certain membranes that are used by and incorporated into products of both
Millipore andMykrolis, so as to appropriately ensure both Millipore and Mykrolis
a continuing supply of such membranes.

     4.    The Master Agreement provides for this Agreement to be entered into
as of the Separation Date.

     NOW, THEREFORE, in consideration of the foregoing and the covenants and
agreements set forth below, the parties hereto agree as follows:

1.   Definitions

The following terms shall have the meanings assigned to them below whenever they
are used in this Agreement.  Capitalized terms used in this Agreement without
definition and which are defined in the Master Agreement shall have the meanings
assigned to them in the Master Agreement.  Except where the context otherwise
requires, words imparting the singular shall include the plural and vice versa,
words denoting any gender shall include all genders and words denoting persons
shall include bodies corporate and vice versa.

     "Flat Sheet UPE Membranes" shall mean (i) rollstock UPE Membranes typically
less than 300 microns in sheet thickness  including both phobic and philic
Membranes, and (ii) polypropylene sterilizing membrane (Solvex), each as
produced by Millipore at the Premises immediately prior to the Separation Date,
or as modified as provided in this Agreement.
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     "Hollow Fiber UPE Membranes" shall mean phobic, tubular UPE Membranes
having an outer diameter typically in the range of 400 to 1500 microns and an
inner diameter typically in the range of 200 to 500 microns.  For purposes of
illustration, Hollow Fiber UPE Membranes include, as of the date hereof, those
Membranes listed under the heading "Hollow Fiber UPE Membranes" in Exhibit A
hereto.  Such listing shall not be deemed to preclude the addition of other
Hollow Fiber UPE Membranes during the term of this Agreement as provided herein.

     "JSA" shall mean a Joint Services Agreement that may be entered into
between the parties and amended from time to time during the Term of this
Agreement, which would provide specific mechanisms for carrying out forecasting,
maintenance of inventory levels, quality parameters, on-time delivery
measurement, and the like.

     "Lease" shall mean the lease of the Premises as set forth in Section 2
hereof.

     "Membranes" shall mean UPE Membranes and Other Membranes as well as any
other membranes or materials that the parties may hereafter agree to add to this
definition of Membranes.

     "Millipore Equipment" shall have the meaning set forth in Section 2(e)(ii)
hereof.

     "Mykrolis Equipment" shall have the meaning set forth in Section 2(e)(i)
hereof.

     "Mykrolis Permitted Persons" shall mean those employees or consultants of
Mykrolis that are involved regularly or from time to time in the manufacture of
UPE Membranes and reasonably need access to the Premises for such purposes.

     "Other Flat Sheet UPE Membranes" shall mean Flat Sheet UPE Membranes other
than Treated Flat Sheet UPE Membranes.  Other Flat Sheet UPE Membranes include,
as of the date hereof, those Membranes listed under the heading "Other Flat
Sheet UPE Membranes" in Exhibit A hereto.

     "Other Membranes" shall mean those membranes listed under the heading
"Other Membranes" in Exhibit A hereto, each as produced by Millipore immediately
prior to the Separation Date, or as modified as provided in this Agreement.

     "Other Membrane Products" shall mean devices or other products which
include one or more Other Membranes as a material or component.

     "Other UPE Membranes" shall mean all UPE Membranes other than Treated Flat
Sheet UPE Membranes.

     "Other UPE Products" shall mean devices or other products which include
Other UPE Membranes as a material or component.

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     "Premises" shall have the meaning set forth in Section 2(a) hereof.

     "Releases" shall mean any purchase orders or other documents of purchase
that Millipore may place with Mykrolis for UPE Membranes, or that Mykrolis may
place with Millipore for Other Membranes.

     "Supplied Party" shall mean a party to this Agreement that orders certain
Membranes pursuant to this Agreement and to whom such Membranes are sold.

     "Supplying Party" shall mean a party to this Agreement that manufactures
certain Membranes ordered by the other party pursuant to this Agreement and that
sells such Membranes to the other party.

     "Term" or "Term of this Agreement" shall mean the effective period of this
Agreement as set forth in Section 4 hereof.

     "Treated Mykrolis Membranes" shall mean Treated Flat Sheet UPE Membranes
and Treated Other Mykrolis Membranes.

     "Treated Mykrolis Products" shall mean devices or other products which
include Treated Mykrolis Membranes as a material or component.

     "Treated Other Mykrolis Membranes" shall mean those Mykrolis membranes that
are chemically treated using Millipore's VMF4 Line or using  Millipore's
patented VMF4 technology, including those membranes listed under the heading
"Treated Other Mykrolis Membranes" in Exhibit A hereto, and such other membranes
as may be added to such list and to this definition as provided in Section 2(o)
hereof.

     "Treated Flat Sheet UPE Membranes" shall mean Flat Sheet UPE Membranes that
are chemically treated using Millipore's VMF4 Line or using Millipore's patented
VMF4 technology, including, as of the date hereof, those Membranes listed under
the heading "Treated Flat Sheet UPE Membranes" in Exhibit A hereto.

     "UPE Membranes" shall mean microporous membranes produced from an ultrahigh
molecular weight polyethylene material by a melt cast process, as produced by
Millipore at the Premises immediately prior to the Separation Date, or as
modified as provided in this Agreement.

     "UPE Products" shall mean devices or other products which include UPE
Membranes as a material or component.

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2.   Space and Transition Services for UPE Membrane and Treated Other Mykrolis
     Membrane  Manufacture

In order to enable Mykrolis, during a limited transition period following the
Separation, to manufacture UPE Membranes (including Hollow Fiber UPE Membranes,
Treated Flat Sheet UPE Membranes and Other Flat Sheet UPE Membranes) and Treated
Other Mykrolis Membranes in the same production areas and with the same
processes as such UPE Membranes and Treated Other Mykrolis Membranes were
manufactured prior to the Separation Date (both (i) for its own use and sale and
for its sale of UPE Products, and (ii) for supply of Flat Sheet UPE Membranes to
Millipore as provided in this Agreement), Millipore and Mykrolis agree to the
following arrangements regarding Mykrolis' use of space and manufacturing
equipment and regarding Millipore's services to Mykrolis in facilitating
Mykrolis' manufacture of UPE Membranes and Treated Other Mykrolis Membranes.

     (a)   Millipore hereby leases to Mykrolis, and Mykrolis hereby leases from
           Millipore, the areas within Buildings "C", "D" and "F" of Millipore's
           facility at 80 Ashby Road, Bedford, MA, as more specifically
           described and shown in Exhibit B hereto (the "Premises") for purposes
           of manufacture of UPE Membranes and Treated Other Mykrolis Membranes
           and warehousing of raw materials and components used in such
           manufacture.

     (b)   The Lease shall commence as of the Separation Date and continue
           through the end of the Term, provided however that Mykrolis shall
           have the right to terminate such Lease prior to the end of the Term
           upon 12 months prior written notice to Millipore.

     (c)   Mykrolis shall pay to Millipore rent for the Premises initially in
           the amount set forth in Exhibit C hereto. For each year of the Lease
           beginning on the first anniversary of the Separation Date, rent shall
           be increased by 5% over the prior year's rent. The initial rent
           payment shall be made within 15 days following the Separation Date on
           a pro-rated basis for the period beginning with the Separation Date
           and ending on the last day of the calendar quarter during which such
           initial payment is made. Each subsequent payment shall be made on or
           before the first day of each subsequent calendar quarter during the
           period of the Lease.

     (d)   At all times during the period of the Lease, Mykrolis Permitted
           Persons shall have access to the Premises for the purposes specified
           in clause (a) of this Section 2, including reasonable ingress and
           egress through other parts of Millipore's facility at 80 Ashby Road.
           Without limiting the generality of the foregoing, Millipore shall
           provide security badges to such Mykrolis Permitted Persons enabling
           their entry to the Premises. Mykrolis agrees to provide an initial
           list of such Mykrolis Permitted Persons to Millipore's facilities
           personnel (as shall be identified to Mykrolis by Millipore) promptly
           after the execution of

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           this Agreement, and to promptly update such list from time to time as
           necessary with any additions or deletions. In addition, Mykrolis
           Permitted Persons shall be (i) provided, to the same extent provided
           to Millipore employees, with access to the use of restrooms, the
           "Building E" cafeteria and other common areas, and to conference
           rooms as reasonably necessary for meetings relating to UPE Membranes
           manufacture, and (ii) permitted to use mailroom services, telephone
           and voicemail systems, information services, fax, copy machines,
           cafeteria/refreshment services, and the like, at prices/rates
           consistent with those charged to internal Millipore users of such
           services and supplies. Without limiting the generality of the
           parties' respective obligations of confidentiality and non-use as
           described in Article VI of the Master Agreement, Mykrolis hereby
           agrees that any information of Millipore that the Mykrolis Permitted
           Persons gain access to as a result of their presence in Millipore's
           facility shall be subject to strict obligations of confidentiality
           and non-use as provided in, and subject to the limitations and other
           provisions of, such Article VI.

     (e)   For purposes of clarification, the parties acknowledge that:

           (i)   the following equipment currently used in the manufacture of
                 UPE Membranes and/or Treated Other Mykrolis Membranes
                 (collectively, the "Mykrolis Equipment") is owned, as of and
                 following the Separation Date, by Mykrolis:

                       -    Slurry Mixing Vessel
                       -    Extrusion Line
                       -    NZE (2 units)
                       -    Testing: Flow, BP, Porisimetry, Dimensions (for
                            phobic Flat Sheet UPE Membranes and for Hollow Fiber
                            UPE Membranes)
                       -    Monomer Chemical Mixing Vessel (for philic Flat
                            Sheet UPE Membranes)
                       -    Batch Extractor (2 units) (for Hollow Fiber UPE
                            Membranes)
                       -    Hollow Fiber Annealing Line

                 and

           (ii)  the following equipment currently used in the manufacture of
                 UPE Membranes and/or Treated Other Mykrolis Membranes
                 (collectively, the "Millipore Equipment") is owned, as of and
                 following the Separation Date, by Millipore:

                       -    Slurry Mix Stations 1-3 Control Modules
                       -    Film 1 Annealing Line
                       -    VMF4 Line (for hydrophilization/chemical
                            modification)

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                 -     Testing: Flow, Wet Time, Stability (for philic Flat Sheet
                       UPE Membranes).
                 -     Monomer Chemical Mixing Stations 4 - 6

     (f)   At all times during the period of the Lease, Millipore shall provide
           Mykrolis with access to and use of the Millipore Equipment, each as
           necessary for use in the manufacture of UPE Membranes or Treated
           Other Mykrolis Membranes. All such access to and use of such
           Millipore Equipment shall be scheduled in advance, in accordance with
           mechanisms for scheduling and for prioritizing time between Mykrolis
           and Millipore needs as shall be provided in a JSA or otherwise
           separately agreed by the parties on or before the Separation Date.
           Mykrolis shall pay Millipore machine hour charges as set forth in
           Exhibit C for use of the Millipore Equipment. Millipore shall invoice
           Mykrolis for such amounts on a quarterly basis.

     (g)   At all times during the period of the Lease, Millipore will supervise
           and provide operational assistance to Mykrolis in its use of the
           Millipore Equipment, as may be requested by Mykrolis or as may be
           determined advisable by Millipore in its sole judgment in order to
           protect against damage to such Millipore Equipment or injury to its
           operators in accordance with standards and procedures in effect prior
           to the Separation Date. Notwithstanding the foregoing, Mykrolis is
           responsible for using the Millipore Equipment in substantial
           compliance with operating procedures in effect prior to the
           Separation Date and in a safe manner, and shall assume all
           responsibility and liability for any personal injury or damage to the
           Millipore Equipment or other property damage resulting from Mykrolis'
           use of such Millipore Equipment. Millipore will also provide a
           reasonable level of general technical support for assistance in
           resolving technical problems in UPE Membrane manufacture. All
           Millipore supervisory, operational assistance, and technical support
           time shall be charged to Mykrolis at the rates per person-hour as set
           forth in Exhibit C.

     (h)   At all times during the period of the Lease,

           (i)   Subject to the provisions of clause (g) above, Millipore shall
                 be responsible for maintaining the Millipore Equipment in its
                 current operational capability, unless otherwise agreed, and

           (ii)  Mykrolis shall be responsible for maintaining the Mykrolis
                 Equipment in its current operational capability and condition,
                 unless otherwise agreed.

     (i)   Upon the request of either party, the parties agree to negotiate, in
           good faith and consistent with the Millipore LRP model for capacity
           and space expansion/renovation, one or more modifications of the
           Premises or the Lease terms as may be necessary or appropriate to
           meet increased demand of either the Supplying Party or the Supplied
           Party for one or more Membranes supplied

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           hereunder, or for other good reason, provided that Millipore shall
           have no obligation hereunder to incur any expense in order to
           increase UPE Membrane manufacturing capacity.

     (j)   Except as may be otherwise agreed, during the period of the Lease,
           Mykrolis shall be fully responsible for regulatory, health, safety
           and environmental compliance, as well as hazardous and solid waste
           disposal, spill response and the like, generated by Mykrolis' use of
           the Premises and Mykrolis' manufacture of UPE Membranes and Treated
           Other Mykrolis Membranes. Mykrolis shall also be responsible for
           completing the conversion from Genesolv to Vertrel as the UPE
           Membranes extraction solvent , consistent with the conversion plan in
           place as of the Separation Date, and for disposal of any remaining
           Genesolv. Notwithstanding the foregoing, at all times during the
           period of the Lease, Millipore reserves the right to enter the
           Premises as it determines necessary or desirable for purposes of
           health, safety and environmental compliance or other reasonable
           purposes that relate to or impact any areas of its 80 Ashby Road
           facility other than the Premises, provided that such access does not
           unreasonably interfere with Mykrolis' use of the Premises.

     (k)   Millipore requires the full capabilities to manufacture (or have
           manufactured) UPE Membranes for its and its Affiliated Companies' use
           and sale, and for its and its Affiliated Companies' use in
           manufacturing (or having manufactured) UPE Products for sale, in the
           Millipore Core Business.   Accordingly, to facilitate Millipore's
           manufacture of UPE Membranes following the termination of the Lease,

           (i)   Mykrolis acknowledges that it plans, consistent with
                 Millipore's pre-Separation Date LRP, to increase its UPE
                 Membrane manufacturing capacity on or prior to the termination
                 of the Lease, and in connection therewith to acquire new
                 equipment in replacement of the existing Extrusion Line and one
                 NZE. If such plan is, in fact, implemented (or if Mykrolis
                 shall otherwise in its own discretion deem it appropriate),
                 Mykrolis agrees to grant Millipore an option to purchase prior
                 to or at the termination of the Lease, and leave in their then
                 current locations, the Extrusion Line and one NZE system used
                 in manufacture of UPE Membranes, at their then current book
                 values and at such other reasonable terms as the parties may
                 agree at such time. Mykrolis agrees to notify Millipore, at the
                 time of its notice of termination of the Lease, as provided in
                 Section 2(b) above, as to whether it is granting Millipore such
                 option;

                 and

           (ii)  Mykrolis agrees to provide Millipore with the know-how
                 (including copies of all pertinent documentation) and a
                 reasonable amount of

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                 transition assistance necessary for Millipore to be able to
                 continue the UPE Membrane manufacturing process immediately
                 upon the termination of the Lease, so as to be able to make UPE
                 Membrane in the same process and of the same quality as made
                 and supplied under this Agreement. All Mykrolis transition
                 assistance time shall be charged to Millipore at the rates per
                 person-hour as set forth in Exhibit C.

     (l)   Mykrolis requires the full capabilities to manufacture (or have
           manufactured) UPE Membranes and Treated Other Mykrolis Membranes.
           Accordingly, to facilitate Mykrolis' manufacture of UPE Membranes and
           Treated Mykrolis Membranes at a different location following the
           termination of the Lease,

           (i)   Mykrolis shall remove and transport, at its own expense, the
                 Mykrolis Equipment (subject to Millipore's option to purchase
                 certain items of such Mykrolis Equipment as set forth in clause
                 (k)((i) above) from the Premises to a location of its choice,
                 on or before the termination of the Lease. Mykrolis shall use
                 its best efforts to avoid or minimize damage to Millipore's
                 facility from such removal, and shall promptly reimburse
                 Millipore for its actual costs of repairing such facility as a
                 result of any such damage;

                 and

           (ii)  Millipore shall provide Mykrolis with know-how (including
                 copies of all pertinent documentation) and a reasonable amount
                 of transition assistance relating to the design,
                 specifications, functionality, operation and maintenance of the
                 Millipore Equipment, such that Mykrolis can make or have made,
                 and operate and maintain, equipment substantially equivalent or
                 comparable to the Millipore Equipment, or successfully
                 outsource the functions performed by the Millipore Equipment in
                 the manufacture of UPE Membranes and Treated Other Mykrolis
                 Membranes. All Millipore transition assistance shall be charged
                 to Mykrolis at the rates per person-hour as set forth in
                 Exhibit C.

     (m)   In the event that any know-how results from or is developed in the
           course of the manufacture of UPE Membranes or Treated Other Mykrolis
           Membranes in the Premises during the term of the Lease (including the
           use of Millipore Equipment in such manufacture), whether by employees
           of Millipore, employees of Mykrolis or jointly, such know-how shall
           be jointly owned by Mykrolis and Millipore. Millipore shall have
           rights to use such know-how in all fields other than the Mykrolis
           Core Business, and Mykrolis shall have rights to use such know-how in
           all fields other than the Millipore Core Business.

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     (n)   During the period of   the Lease, if requested by Mykrolis, Millipore
           agrees to perform quality control testing of the UPE Membranes and
           Treated Other Mykrolis Membranes for Mykrolis on a contract basis, in
           accordance with the test specifications in effect as of the date of
           this Agreement, as may be modified by agreement of the parties.  Such
           testing will be scheduled between the parties, and will be charged to
           Mykrolis at the rates  per person-hour as set forth on Exhibit C.

     (o)   All amounts payable by Mykrolis to Millipore, or by Millipore to
           Mykrolis, pursuant to this Section 2 ,except for the lease payments
           provided in clause (c) above, shall be payable within forty-five (45)
           days following receipt of invoice. Any late payments shall be subject
           to interest at a rate of 12% per annum.

     (p)   Mykrolis shall have the right to add other membranes to the list and
           definition of "Treated Other Mykrolis Membranes" during the period of
           the Lease, subject to (i) Millipore's approval (on grounds of safety,
           compliance with laws, or avoidance of damage to the Millipore
           Equipment or the Premises) of the manufacture of such additional
           Treated Other Mykrolis Membranes, which approval shall not be
           unreasonably withheld or delayed, and (ii) scheduling of use of the
           Millipore Equipment as shall be negotiated by the parties in good
           faith.

3.   Supply of Membranes

Subject to the terms and provisions of a JSA that may be in effect from time to
time:

     (a)   Mykrolis agrees to sell to Millipore, from time to time during the
           Term, Flat Sheet UPE Membranes, in the amounts contained in
           Millipore's Releases , and Millipore agrees to sell to Mykrolis, from
           time to time during the Term, Other Membranes in the amount contained
           in Mykrolis' Releases. Except as set forth in Section 6(a) hereof,
           neither party shall have any minimum or maximum purchase requirements
           for any or all of such Membranes hereunder, either per order or in
           the aggregate.

     (b)   Unless otherwise agreed by both parties in writing, this Agreement
           applies to all Releases placed by a Supplied Party with a Supplying
           Party during the Term. The terms and conditions of this Agreement
           shall apply to any Release, whether or not this Agreement or its
           terms and conditions are expressly referenced in the Release.

     (c)   Unless otherwise agreed by both parties in writing for a specific
           transaction, no inconsistent or additional term or condition in any
           Release, or in any acknowledgment, invoice or other document issued
           by a Supplying Party or its representative in connection with a
           particular purchase by a Supplied Party, shall be applicable to a
           transaction within the scope of this Agreement. Both

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           parties specifically agree that any terms and conditions in any such
           documents which are in any way inconsistent with this Agreement shall
           be inapplicable, and the terms of this Agreement shall govern.

4.   Term and Termination

     (a)   The effective period of this Agreement (the "Term") shall begin on
           the Separation Date and continue thereafter for a period of five (5)
           years or until earlier termination in accordance with clause (b) or
           (c) of this Section 4. Any Release issued by a Supplied Party before
           the effective date of termination and in accordance with Section 6(a)
           hereof shall be fulfilled by the Supplying Party.

     (b)   Either party may terminate this Agreement prior to the date five (5)
           years following the Separation Date without prejudice to any rights
           or liabilities accruing up to the date of termination:

           (i)   in the event of a material breach by the other party of any of
                 the terms and conditions of this Agreement, by giving the other
                 party notice of such breach, and provided that such breach
                 shall not have been cured within sixty (60) days following such
                 notice; and

           (ii)  immediately, by written notice thereof, if any of the following
                 events or an event analogous thereto occurs:

                 a.    an adjudication has been made that the other party is
                       bankrupt or insolvent;

                 b.    the other party has filed bankruptcy proceedings or has
                       had such proceedings filed against it, except as part of
                       a bona fide scheme for reorganization;

                 c.    a receiver has been appointed for all or substantially
                       all of the property of the other party;

                 d.    the other party has assigned or attempted to assign this
                       Agreement for the benefit of its creditors; or

                 e.    the other party has begun any proceeding for the
                       liquidation or winding up of its business affairs.

     (c)   Termination under this Section 4 shall be in addition to and not a
           substitute for other rights or causes of action of the terminating
           party.

     (d)   Termination of this Agreement shall not in any way operate so as to
           impair or destroy any of the rights or remedies of either party,
           either at law or in equity, nor shall it relieve the parties of their
           obligations pursuant to Sections 2(k) (l) and (m), 7, 8, 11, 12,
           14,15 and 16 hereof.

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5.   Price

     (a)   During the period of this agreement prices for the Membranes shall be
           at the Supplying Party's fully burdened manufacturing cost for such
           Membranes, consistent with U.S. Generally Accepted Accounting
           Principles ("Manufacturing Cost"), plus twenty percent (20%). On the
           first anniversary of the Separation Date and on each anniversary
           thereafter during the Term, the Manufacturing Costs will be adjusted
           to reflect the then current cost to manufacture the Membranes, which
           shall be set by the Supplying Party after an "open-book" review by
           the parties.

     (b)   Prices and deliveries will be FOB 80 Ashby Road, Bedford, MA.

6.   Orders, Delivery and Payment

Subject to the terms and provisions of a JSA that may be in effect from time to
time:

     (a)   Each Supplied Party will provide the corresponding Supplying Party
           with a rolling one year forecast of its demand for Membranes
           hereunder (a "One-Year Forecast") which will be updated on a
           quarterly basis, at least thirty (30) days prior to the start of each
           calendar quarter. Each such One-Year Forecast shall include a sub-
           forecast for the first three months within the One-Year Forecast (a
           "3 Month Forecast"). The Supplied Party must provide Releases for
           delivery, during the three months covered by such 3 Month Forecast,
           of such Membranes in quantities not more than 0% less or 30% greater
           than the quantities set forth in such 3 Month Forecast. Except for
           such commitment with respect to the 3 Month Forecasts, the One-Year
           Forecasts will be used for planning purposes only and are not
           binding. A Supplying Party will ship Membranes so as to arrive on the
           delivery date set forth in a Release, provided that the delivery date
           set forth in such Release is not less than 30 days following the date
           such Supplying Party receives such Release and provided that the
           amounts set forth in such Release are within the range provided above
           in accordance with the applicable 3 Month Forecast.

     (b)   A Supplied Party shall make payment to the Supplying Party within
           forty-five (45) days after the later of (i) receipt of ordered
           Membranes, and (ii) receipt of such Supplying Party's invoice for
           such Membranes. All payments shall be made in U.S. Dollars. Late
           payments shall be subject to interest at a rate of 12% per annum.

     (c)   All Product shall be tested, inspected and packaged for delivery by
           the Supplying Party as mutually agreed by the parties.

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7.   Non-Competition

Except as otherwise provided in Section 3 hereof or elsewhere in this Agreement:

     (a)   Millipore agrees that neither it nor any of its Affiliated Companies
           will (i) sell outside of the Millipore Core Business any UPE
           Membranes or UPE Products, or (ii) sell any UPE Membranes or UPE
           Products to any distributor, OEM manufacturer or other third party
           that has rights to, or that Millipore or any such Affiliated Company
           has reason to believe will, resell such UPE Membranes or UPE Products
           outside of the Millipore Core Business or sell other products which
           include UPE Membranes or UPE Products as materials or components
           outside of the Millipore Core Business.

     (b)   Mykrolis agrees that neither it nor any of its Affiliated Companies
           will (i) sell into the Millipore Core Business any Other UPE
           Membranes or Other UPE Products, or (ii) sell any Other UPE Membranes
           or Other UPE Products to any distributor, OEM manufacturer or other
           third party that has rights to, or that Mykrolis or any such
           Affiliated Company has reason to believe will, resell such Other UPE
           Membranes or Other UPE Products into the Millipore Core Business or
           sell other products which include Other UPE Membranes or Other UPE
           Products as materials or components into the Millipore Core Business.

     (c)   Millipore agrees that neither it nor any of its Affiliated Companies
           will (i) sell into the Mykrolis Core Business any Other Membranes or
           Other Membrane Products, or (ii) sell any Other Membranes or Other
           Membrane Products to any distributor, OEM manufacturer or other third
           party that has rights to, or that Millipore or any such Affiliated
           Company has reason to believe will, resell such Other Membranes or
           Other Membrane Products into the Mykrolis Core Business or sell other
           products which include Other Membranes or Other Membrane Products as
           materials or components into the Mykrolis Core Business.

     (d)   Mykrolis agrees that neither it nor any of its Affiliated Companies
           will (i) sell outside of the Mykrolis Core Business any Other
           Membranes, Other Membrane Products, Treated Mykrolis Membranes or
           Treated Mykrolis Products, or (ii) sell any Other Membranes, Other
           Membrane Products, Treated Mykrolis Membranes or Treated Mykrolis
           Products to any distributor, OEM manufacturer or other third party
           that has rights to, or that Mykrolis or any such Affiliated Company
           has reason to believe will, resell such Other Membranes, Other
           Membrane Products, Treated Mykrolis Membranes or Treated Mykrolis
           Products outside of the MMI Core Business or sell other products
           which include Other Membranes, Other Membrane Products, Treated
           Mykrolis Membranes or Treated Mykrolis Products as materials or
           components outside of the Mykrolis Core Business.

                                       12
<PAGE>

     (e)   In the event that subsequent to the date hereof either party
           discovers any pre-existing distribution arrangements that would
           conflict with the provisions of this Agreement, the parties agree
           that any such pre-existing arrangements shall not constitute a breach
           hereunder, and they further agree: (i) to use reasonable commercial
           efforts to cause any such terms of distribution agreements that are
           inconsistent with such provisions to be amended so as to be
           consistent with such provisions, (ii) not to amend any distribution
           agreements following the date of this Agreement so as to be
           inconsistent with such provisions, and (iii) not to renew or enter
           into any distribution agreements or other agreements containing terms
           inconsistent with such provisions following the date of this
           Agreement.

8.   Warranties and Indemnification

     (a)   Each Supplying Party warrants to the corresponding Supplied Party
           that:

           (i)   All Membranes supplied to the Supplied Party hereunder shall
                 conform to the specifications for such Membranes as in effect
                 as of the date of this Agreement and as provided to the
                 Supplied Party, as such specifications may be amended as agreed
                 by the parties ;

           (ii)  All Membranes supplied hereunder shall be free of defects in
                 materials and workmanship;

           (iii) It will abide by all applicable laws and regulations in
                 manufacturing and supplying Membranes pursuant to this
                 Agreement; and

           (iv)  All Membranes supplied hereunder will be manufactured in strict
                 conformity with ISO 9002 and cGMP standards.

     (b)   In the event of a breach of the foregoing warranties, the Supplying
           Party's sole obligation to the Supplied Party shall be to repair,
           replace or refund, at the Supplying Party's option, any non-
           conforming Membranes.

     (c)   THE SUPPLYING PARTY MAKES NO OTHER WARRANTY, EXPRESSED OR IMPLIED,
           INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR
           FITNESS FOR A PARTICULAR USE. FURTHERMORE, THE SUPPLYING PARTY SHALL
           NOT BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL, SPECIAL OR ANY OTHER
           INDIRECT DAMAGES RESULTING FROM ECONOMIC LOSS OR PROPERTY DAMAGE
           SUSTAINED BY THE SUPPLIED PARTY FROM THE USE OF THE SUPPLIED
           MEMBRANES.

                                       13
<PAGE>

     (d)   Each Supplying Party agrees to indemnify and hold the corresponding
           Supplied Party harmless from and against any claim or legal action by
           a third party against such Supplied Party (including reasonable
           attorneys' fees associated therewith) based on damages incurred as a
           result of property damages, personal injury or death, to the
           proportionate extent arising from a breach of any of the above
           warranties of the Supplying Party or from the Supplying Party's
           negligent action or omission.

     (e)   Without limiting any other rights or remedies that a Supplied Party
           may have, if such Supplied Party determines that delivered Membranes
           do not conform to the agreed specifications for such Membranes, then
           such Supplied Party may reject or withdraw its acceptance thereof and
           shall notify the Supplying Party in writing of such nonconformity or
           error within thirty (30) days from receipt of such Membranes by the
           Supplied Party. The Supplied Party may subject any Membrane to
           internal testing for purposes of determining conformity to
           specifications. The Supplying Party shall have fifteen (15) days
           after receipt of written notice of nonconformity or error to replace
           nonconforming Membranes at the expense of the Supplying Party. If so
           directed by the Supplying Party, the Supplied Party shall return
           nonconforming Membranes to the Supplying Party's manufacturing
           facilities, at the Supplying Party's expense and using such carrier
           and such delivery dates and terms as the Supplying Party shall
           reasonably specify.

     (f)   The parties agree to have their representatives meet at least once
           every three (3) months (unless otherwise agreed) to review compliance
           with the manufacturing, specifications, product quality, forecasting
           and delivery terms set forth in this Agreement, and to agree on any
           necessary corrective actions or modifications to the JSA as then in
           effect.

9.  Membrane Modifications; New Membranes.

     (a)   Each Supplying Party agrees that it will not substantially change the
           Membranes that it will supply hereunder or their formulation,
           manufacturing or testing processes, process equipment, other aspects
           of form, fit or function, or production location, unless the Supplied
           Party approves such change in writing, which approval may require
           formal validation and qualification and possibly customer
           notification. The implementation of any such accepted changes shall
           be subject to the parties' agreement on any change in price or other
           terms of supply as may be necessitated or requested by a party as a
           result of such change.

     (b)   If any new or improved UPE Membranes (i) result from research and
           development work (A) to be conducted by Millipore pursuant to the
           Research Agreement between Millipore and Mykrolis entered into as of
           the date of this Agreement, or (B) that may be conducted by either
           Millipore or Mykrolis after

                                       14
<PAGE>

           the Separation Date but during the Term of this Agreement, or (ii)
           are requested by Millipore to be added to the supply provisions
           hereof, and are: (A) specified in Millipore's pre-Separation Date
           LRP, or agreed to by Mykrolis, and (B) technically feasible for
           Mykrolis to manufacture, it is intended that such UPE Membranes be
           added to this Agreement both in terms of Mykrolis' supply to
           Millipore and Mykrolis' manufacture of such UPE Membranes, and they
           shall be so added to this Agreement upon agreement by the parties as
           to specifications and pricing, which pricing shall be consistent in
           methodology with the pricing hereunder.

     (c)   Without limiting the provisions of clauses (a) and (b) of this
           Section 9, Mykrolis agrees following the Separation Date at its own
           expense to continue work in improving UPE Membranes in the areas
           planned prior to the Separation Date and noted in Millipore's LRP.

10.  Access to Facilities

At any time during the Term, upon reasonable advance notice by a Supplied Party,
such Supplied Party's authorized representatives and customers (subject to
appropriate confidentiality obligations) shall be provided access to the
facilities of the Supplying Party to audit or verify conformity of Membrane
manufacture to ISO 9002 and cGMP standards and other applicable laws and
regulations.  During the period of the Lease, Millipore's authorized
representatives shall be provided access to the Premises for the purpose of
auditing or troubleshooting (to be coordinated with Mykrolis) of technical
problems with UPE Membranes or their manufacture.  Also, during the period of
the Lease, Mykrolis customers (subject to appropriate confidentiality
obligations and on reasonable advance notice, and for the purposes indicated
above) shall be provided access to the areas of Millipore's 80 Ashby Road
facility where the Millipore Equipment is located and used.

11.  Insurance

Each Supplying Party agrees to procure and maintain, at all times during the
Term, product liability insurance with respect to the Membranes supplied by it
(Broad Form Vendor's Endorsement) and contractual liability coverage, with the
minimum limits of $5,000,000 (Five Million Dollars).  Each Supplying Party
shall, upon request by the Supplied Party, furnish to the Supplied Party a
certificate of insurance evidencing the foregoing coverage and limits.  The
insurance provider shall not be changed without providing the Supplied Party
with ten (10) days' prior written notice.

                                       15
<PAGE>

12.  Notices

Any notice or other communication required or permitted to be given by either
party pursuant to the terms of this Agreement shall be in writing and shall be
deemed given if and when delivered by hand or sent by certified mail, return
receipt requested, overnight courier, confirmed telecopy, or confirmed
electronic mail transmission, addressed as follows:

          If to Millipore:         Millipore Corporation
                                   80 Ashby Road
                                   Bedford, MA  01730
                                   Attn: President, Membrane Technology Division
                                   Fax: (781) 533-3143

          with a copy to:          Millipore Corporation
                                   80 Ashby Road
                                   Bedford, MA 01730
                                   Attn:  General Counsel
                                   Fax:  (781) 533-3125

          If to Mykrolis:          Mykrolis Corporation
                                   Patriots Park
                                   Bedford, MA  01730
                                   Attn:Vice President, Manufacturing
                                   Fax:  (781) 533-3117

          with a copy to:          Mykrolis Corporation
                                   Patriots Park
                                   Bedford, MA  01730
                                   Attn:  General Counsel
                                   Fax:  (781) 533-3125

or to such electronic mail address as may be specified by an addressee party to
the other party by one of the other means provided above, or to such other
address, telecopy number or electronic mail address as may be specified by an
addressee party to the other by one of the means provided above.

13.  Force Majeure

The obligations of a party under this Agreement will be suspended to the extent
that it is wholly or partially precluded from complying with its obligations
under this Agreement by force majeure.  Force majeure includes, but is not
restricted to, fire, storm, flood, earthquake, explosion, accident, act of the
public enemy, war, rebellion, insurrection, sabotage, epidemic, quarantine
restriction, labor dispute, labor shortage, transportation embargo or failure or
delay in transportation, act of God, act (including laws, regulations,
disapprovals or failure to

                                       16
<PAGE>

approve) of any government agency, whether national, municipal, or otherwise.
During the existence of any such force majeure condition, the affected party
shall nevertheless use its best efforts to remove the cause thereof.

14.  No Other Rights

Neither party shall have any rights hereunder to any patents or other
intellectual property of the other party, except as specifically set forth
herein.  Without limiting the generality of the foregoing, neither party shall
have any rights to use any trademarks of the other party for any purpose, in
connection with the Membranes to be manufactured or supplied hereunder.

15.  Incorporation of Provisions from Master Agreement, Conflicts

     (a)  The following provisions of the Master Agreement, mutatis mutandis,
          are hereby incorporated by reference into this Agreement for all
          purposes:

                        Article VI (Confidentiality);
                        Article IX (Dispute Resolution);
                        Section 10.3 (Governing Law);
                        Section 10.6 (Counterparts);
                        Section 10.7 (Binding Effect; Assignment);
                        Section 10.8 (Severability);
                        Section 10.9 (Failure or Indulgence Not Waiver;
                                        Remedies Cumulative);
                        Section 10.10 (Amendment);
                        Section 10.11 (Authority);
                        Section 10.12 (Interpretation).

          In the event of any conflict between any of the foregoing incorporated
          provisions of the Master Agreement and any other provision of this
          Agreement, such other provision of this Agreement shall prevail.

     (b)  In the event of any conflict between any of the provisions of this
          Agreement and any provision of the Master Patent License Agreement,
          the Master Patent Grantback License Agreement or the Master Trade
          Secret and Know-How Agreement, each dated as of even date herewith
          between the parties hereto, the provisions of such other agreements
          shall prevail.

16.  Entire Agreement

This Agreement, including Exhibits A, B,  C and D attached hereto, is the entire
agreement between the parties with respect to the subject matter hereof, and
supersedes any prior negotiations and agreements or understandings and any
contemporaneous oral agreements or understandings with respect to the subject
matter hereof.

                                       17
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their duly authorized representatives effective as of the date first
set forth above.

MILLIPORE CORPORATION                   MYKROLIS CORPORATION

By: /s/Francis J. Lunger                By: /s/Jean-Marc Pandraud
   ----------------------------            ------------------------
Name:  Francis J. Lunger                Name:  Jean-Marc Pandraud
      -------------------------               ---------------------
Title: Executive Vice President         Title: President
      -------------------------               ---------------------

                                       18
<PAGE>

                                   EXHIBIT A
                     Membranes Covered By Supply Agreement
<TABLE>
<CAPTION>
<S>                      <C>                                                <C>
   Membrane                   Description                                                         Note

      Other Membranes
      ---------------
GIPU00000               0.2 um philic PES
VIPP00000               0.1 um philic PES                                    Still in final development.  May end up with
                                                                             different catalog number as product is finalized.

      Other Flat Sheet UPE Membranes
      ---------------------------
DOHP00000               0.65 um phobic, thick UPE
GOHT                    0.25 um phobic UPE
GPHP00000               0.2 um PP Membrane
TPGP00000               0.2 um phobic, thin UPE
TPVP00000               0.1 um phobic, thin UPE
TPZP00000               0.05 um phobic, thin UPE
UPBP00000               1.0 um phobic, thick UPE
UPDP                    0.65 um phobic UPE
UPGP00000               0.2 um phobic, thick UPE
UPHP00000               0.45 um phobic, thick UPE
UPVP00000               0.1 um phobic, thick UPE
UPZP00000               0.05 um phobic, thick UPE
VOHT                    0.15 um phobic UPE
ZOHT                    0.05 um phobic UPE
UPHP000LC               Improved 0.45um UPE
      Treated Flat Sheet UPE Membranes
      ---------------------------
JOTD00000               0.25 um Charged, philic UPE
VOTN00000               0.10 um Charged, neutral UPE
WOTD00000               0.15 um Charged, philic UPE
WOTN00000               0.15 um Charged, neutral UPE
ZOTD00000               0.05 um Charged, philic UPE
      Hollow Fiber UPE Membranes
      ---------------------------
UFGP00000               LHVD 0.1 um UPE Hollow Fiber
UFGP                    0.1 um UPE Hollow Fiber
UFWP00000               PI-250 UPE Hollow Fiber
UFZP                    0.05 um UPE Hollow Fiber
UFGP43016               0.1 um UPE Hollow Fiber Mat
UFGP95832               0.1 um UPE Hollow Fiber Mat
UFGP95835               0.1 um UPE Hollow Fiber Mat
UFZP43016               0.05 um UPE Hollow Fiber Mat
      Treated Other Mykrolis Membranes
      ---------------------------
TYTD00000               Charged, Philic Tyvek substrate for Copper Anode
FPHP00000               0.45 um Philic PTFE Membrane
FPVP00000               0.1 um Philic PTFE Membrane
VFPN00000               0.1 um neutral, philic PTFE
PFAP00000               PFA Hollow Fiber                                     Membrane still in development, but which will be
                                                                             produced by MMI with their own equipment.
</TABLE>

                                       19
<PAGE>

                                   Exhibit B

BEDFORD MEMBRANE MFG.

Mykrolis Space Occupancy =      4612 Sq. Ft.

Type:                 Location      Sq. Ft.            Comments

Manufacturing:
--------------
--------------------------------------------------------------------------------
Extrusion              D-101        1527
                       D-102         195
                       D-104         138
HF Annealing           F-105        1008
Extraction             C-103         720
--------------------------------------------------------------------------------
                       Total Mfg. (Sq. Ft.) =   3588

Warehouse:
----------

Incoming               D-108         240  15 Pallets Spaces allowance

Raw Materials          D-108         464  29 Pallet Spaces allowance

Finished Goods         D-108         128  8 Pallet Spaces (safety stock +20%)

WIP Staging            C-101         128  8 Pallet Spaces allowance

Flammable Storage      D-183/184       0  Nothing stored in Flammable
                                          storage area
--------------------------------------------------------------------------------
                       Total Whse. (Sq. Ft.) =  960
Offices:
--------
--------------------------------------------------------------------------------
Bldg. F  (2)                 64           4 cubicles
--------------------------------------------------------------------------------

Typical Raw Mat. Storage

DOP                          3
Mineral Oil                  2
PE                           2
Base-30                     12
Blue Patapar                 1
Genesolve                    3
Vertrel                      3
Cores                        1
Cartons/Boxes                2
                            --
                            29

                                       20
<PAGE>

                                   EXHIBIT C

Membrane Supply Agreement - Rates and Charges

<TABLE>
<CAPTION>

        Machine Hour Rates                        2000       2001        Markup                  Agreement

                                                Standard   Cost Incr       20%         Total       Price
                                                              5%
      ----------------------------------------------------------------------------------------------------
      <S>                                      <C>          <C>         <C>         <C>          <C>
        MIX Room                                 $ 219.58     $10.98      $46.11       $276.67     $277.00
      ----------------------------------------------------------------------------------------------------
        VMF 4 Machine                            $ 346.32     $17.32      $72.73       $436.36     $436.00
      ----------------------------------------------------------------------------------------------------
        Annealing                                $ 209.57     $10.48      $44.01       $264.06     $264.00
      ----------------------------------------------------------------------------------------------------
</TABLE>
<TABLE>
<CAPTION>
        <S>                                    <C>                    <C>                      <C>
      ---------------------------------------------------           --------------------------------------
        Tech Support and Transition Assistance                         QC
        Costs                                                          Costs
                                                      Per                                              Per
                                                   Person                                           Person
                                                     Hour                                             Hour
        Labor Only                               $  46.90
        Dept Overhead                            $   9.10              2000 Standard               $ 46.10
        Cost                                     $  56.00              2001 cost incr. 5%          $  2.31
        Mark up 20%                              $  11.20              Markup 20%                  $  9.68
        Total                                    $  67.20              Total                       $ 58.09
        Use                                      $  67.00              Use                         $ 58.00
      ---------------------------------------------------           --------------------------------------
</TABLE>

      ---------------------------------------------------
      Rent in First Year

      Per year, payable quarterly                $280,000
      ---------------------------------------------------

      On the first anniversary of the Separation Date, and on each anniversary
      thereafter, all above rates, except rent, will be adjusted to the
      provider's standard cost, plus 20%, as of such anniversary date. Rent will
      be adjusted 5% annually

                                       21<PAGE>

                                                                   EXHIBIT 10.13

                              RESEARCH AGREEMENT

This Agreement is made effective this 31st day of March, 2001, by and between
Millipore Corporation, a Massachusetts Corporation ("Millipore"), and Mykrolis
Corporation, a Delaware corporation, ("Mykrolis").

                          Introduction and Background

1.   The Board of Directors of Millipore has determined that it is in the best
     interest of Millipore and its stockholders to separate Millipore's existing
     businesses into two independent businesses.

2.   As part of the foregoing, Millipore and Mykrolis, have entered into a
     Master Separation and Distribution Agreement which provides, among other
     things, for the separation of certain Mykrolis assets and Mykrolis
     liabilities, the initial public offering of Mykrolis stock, the
     distribution of such stock and the execution and delivery of certain other
     agreements in order to facilitate and provide for the foregoing.

3.   Millipore has a central research group which performs research on behalf of
     all of the divisions of Millipore.

4.   Millipore's microelectronics division, which has become Mykrolis, wishes to
     have Millipore continue to perform certain research for Mykrolis for a
     period of time and Millipore wishes to perform such research.

NOW, THEREFORE, Millipore and Mykrolis agree as follows:

1.   Research Projects Performed by Millipore Personnel

     A.   The Projects

          For the duration of this Agreement, Millipore shall commit to perform
          the following 4 research projects for Mykrolis:

          .  High Performance Filter
          .  Orion PTFE Filter
          .  Non-Sieving Technology
          .  Quick Change II

          (collectively, the "Projects", or a "Project")

                                       1
<PAGE>

          Such Projects are described in Exhibit A which is attached and
          incorporated by reference.

     B.   Process for Conducting Research

          On an annual basis, the parties shall determine the scope of work for
          each Project, the amount of Millipore personnel required to perform
          such work, and the particular Millipore personnel assigned to each
          Project.

          The parties agree to use their best efforts to determine the scope of
          work, the amount of time required to perform such work, and the
          particular Millipore personnel assigned to each Project for the first
          year of this Agreement within sixty (60) days following the execution
          of this Agreement.  Thereafter, these matters shall be determined as
          follows:

          (i)    Before the end of the current contract year, Mykrolis shall
                 meet with Millipore to discuss with regard to each Project the
                 scope of work it wishes Millipore to complete for the following
                 contract year.

          (ii)   For each Project, Millipore shall submit a research proposal
                 (the "Research Proposal") which shall include the following:

                 .  the scope of work proposed for the following year;

                 .  the particular Millipore personnel assigned to the Project
                    and the percentage of their time to be spent on such
                    Project;

                 .  estimate of expenses and capital needed for the following
                    year. The actual expenses and capital may vary but the
                    variance from the estimate shall not be greater than 20%
                    without Millipore receiving the written consent of Mykrolis.

          (iii)  The parties shall discuss each Research Proposal, modify as
                 appropriate, and, if acceptable to both parties, shall indicate
                 their agreement by mutual execution of the Research Proposal.
                 Once executed, the Research Proposal shall bind both parties.

          (iv)   Each Research Proposal shall be mutually executed at least 90
                 days before the end of the current contract year.

                                       2
<PAGE>

          (v)    If the parties cannot agree on a Research Proposal for a
                 particular Project, or if Mykrolis elects not to continue work
                 on a particular Project, then the work on that particular
                 Project shall stop at the end of the current contract year.
                 Thereafter, Millipore shall have no obligation to work on such
                 Project.

          (vi)   After the completion of a Project, support services may be
                 requested by Mykrolis to assist in the implementation of the
                 results of the project work. Both parties will agree to the
                 amount of time required to fulfill these requests prior to work
                 commencing. Costs will be determined as per Section D below.

     C.   No Guarantees; Representations

          The parties recognize that research is inherently an uncertain
          endeavor.  Accordingly, Millipore cannot guarantee that any particular
          results will arise from the research performed under this Agreement.
          Millipore does, however, represent the following:

          (i)    The work to be accomplished in the Research Proposals shall be
                 realistic and achievable.

          (ii)   The Millipore personnel assigned to each Project possess the
                 appropriate skills to perform the work as described in the
                 Research Proposal.

          (iii)  The Millipore personnel assigned to the Projects hereunder
                 shall exercise good faith and commercially reasonable efforts
                 to complete the work set forth in the applicable Research
                 Proposal.

          (iv)   When the Research Proposal for a given year has been mutually
                 executed, Millipore shall endeavor to maintain the assigned
                 people to the particular Project for that year. Millipore,
                 does, however, reserve the right to reassign individuals in
                 exceptional circumstances. In such a case, Mykrolis shall have
                 the right to refuse the re-assignment, provided that it
                 notifies Millipore within 10 days of the date Mykrolis learns
                 of the re-assignment, and terminate the particular Project
                 immediately with no further financial

                                       3
<PAGE>

                 obligation other than to pay for all research done until the
                 date of termination.

     D.   Costs

          (i)    The cost to Mykrolis for the services of the Millipore
                 personnel provided in this Agreement (the "Research Costs")
                 shall approximate Millipore's costs and shall be agreed upon by
                 the parties within sixty (60) days following the execution of
                 this Agreement.

          (ii)   For each individual assigned to a Project, Mykrolis shall pay
                 Millipore for the percentage of that individual's time
                 allocated to such Project, as set forth in the applicable
                 Research Proposal.

          (iii)  The amount set forth in subsection (i) above which Mykrolis
                 pays to Millipore shall include not only the services of the
                 Millipore research personnel assigned to the Projects but also
                 all laboratory and office space required to conduct the
                 research activities hereunder. Such laboratory and office space
                 shall be in quality and amount substantially similar to that
                 provided to other Millipore personnel performing research for
                 Millipore.

          (iv)   Any extra equipment, materials, and Project related travel
                 required to perform the Projects shall not be included in the
                 rate set forth in subsection (i) above and shall be Mykrolis'
                 financial responsibility. Accordingly, all such equipment,
                 materials and Project related travel expenses required to
                 perform the research shall be initially paid for by Millipore
                 but Millipore shall be reimbursed by Mykrolis for such expenses
                 at cost on a quarterly basis as per Section 5 of this Agreement
                 (Millipore shall provide appropriate documentation upon
                 request).

          (v)    During the term of this Agreement, all costs hereunder shall be
                 increased, on an annual basis, 5% over the prior year's costs.

                                       4
<PAGE>

     E.   Early Termination of Projects

          Mykrolis may terminate any Project before its scheduled conclusion.
          Its only financial obligation upon such early termination shall be to
          pay for all Millipore research personnel assigned to such project to
          the end of the current contract year as described in the applicable
          Research Proposal (alternatively, if the Research Proposal states that
          the Project ends before the end of the current contract year, then
          Mykrolis' obligation ends sooner as described in the Research
          Proposal).  Notwithstanding the above, Millipore shall exercise its
          best efforts to mitigate Mykrolis' financial obligations by attempting
          to assign the Millipore personnel affected by such early termination
          to a Millipore research project.  When, and if, the Millipore
          personnel have been assigned to a Millipore research project,
          Millipore shall inform Mykrolis, and Mykrolis' obligations with
          respect to paying for that particular Millipore employee shall cease.
          This provision shall not apply to any Mykrolis Project termination
          under Section 1(C)(iv) above.

     F.   The parties may by mutual written agreement add projects to this
          Agreement beyond those set forth in Section 1(A) above.

2.   Melt Casting Projects

     Mykrolis shall develop the capacity to perform its melt casting research
     projects with its own personnel and its own facilities.  Until such time as
     Mykrolis is able to do so, Millipore shall provide the following assistance
     to Mykrolis:

     A.   Space

          Laboratory and office space ("Space") for 5 Mykrolis research
          personnel assigned to Melt Casting projects.  The parties contemplate
          that the Mykrolis employees shall be Larry Yen, Dean Gates, Rajni
          Patel, Sonan Nguyen and a senior chemical engineer to be hired by
          Mykrolis.  Such Mykrolis employees shall reside at the facilities of
          Millipore's central research group.  Millipore shall provide adequate
          Space so that such Mykrolis employees may conduct the Melt Casting
          research projects.  Such Space shall be in quality and amount,
          substantially similar to the Space provided to Millipore's research
          personnel.  The cost to Mykrolis for providing the Space described
          above shall be as specified in the in the Research Costs.  Any
          materials and extra equipment required to perform the research herein
          shall

                                       5
<PAGE>

          not be included in this rate and shall be Mykrolis' responsibility.
          Accordingly, Mykrolis shall purchase and own such materials and
          equipment. While the parties expect that the Mykrolis research
          personnel will require the Space for a period of approximately one
          year, Millipore shall make such Space available for a maximum of two
          years.

     B.   To further facilitate Mykrolis' development of its melt casting
          research capability, Millipore shall, for the first year of this
          Agreement, make 50% of K.S. Cheng's time available to Mykrolis.
          Mykrolis shall utilize Dr. Cheng to assist in its efforts to develop
          an independent melt casting research capability.  The cost of Dr.
          Cheng's services to Mykrolis shall be as specified in the Research
          Costs.

     C.   During the term of this Agreement, all costs hereunder shall be
          increased, on an annual basis, 5% over the prior year's costs.

3.   Ownership Rights In Millipore's Work Product

     A.   (i)    The parties acknowledge that Millipore possesses a significant
                 foundation of know-how, technology, trade secrets, and
                 expertise in the area of chemical surface modifications on
                 polymeric membrane surfaces ("the Foundation").

          (ii)   The parties contemplate that much of the technology of the
                 Foundation will be utilized in the Projects. Notwithstanding
                 anything below in this section to the contrary, all technology
                 which is part of the Foundation which is utilized in the
                 Projects remains the property of Millipore. Mykrolis, however,
                 shall have the royalty free right to utilize such Foundation
                 technology as contemplated by the particular Project in the
                 Mykrolis Field of Use as defined in the Master Trade Secret and
                 Know-How Agreement.

          (iii)  With respect to any know-how developed in the course of a
                 Project and relating to the Foundation, each party shall have
                 the exclusive right to utilize such know-how in their
                 respective Fields of Use as defined in the Master Trade Secret
                 and Know-How Agreement.

                                       6
<PAGE>

     B.   Millipore hereby agrees that all works of authorship, including the
          design and implementation of any computer program, developed by the
          Millipore personnel while assigned to Mykrolis and arising out of
          their work on a Project shall be deemed "work for hire" as that term
          is defined under the United States Copyright Laws and all rights in
          and to such works of authorship developed by Millipore shall be the
          sole property of Mykrolis.

     C.   Millipore hereby covenants and agrees that it shall, during the term
          of this Agreement, and for a period of six (6) months thereafter,
          cause the Millipore personnel to promptly report and disclose to
          Mykrolis, all inventions ("Inventions") made or conceived by the
          Millipore Employees while assigned to Mykrolis and arising out of
          their work on a Project and shall assign to Mykrolis its entire
          interest throughout the world in all Inventions referred to herein.
          As used herein, the term "Invention" means an idea, development, or
          technology that is patentable under U.S. patent law.

     D.   Notwithstanding the above, Millipore shall retain an exclusive,
          worldwide, right to make, use, sub-license, or sell any product
          incorporating such Invention in the Millipore Field (as that term is
          defined in the Master Trade Secret and Know-How Agreement).  In
          consideration for such right, Millipore shall pay Mykrolis a 5%
          royalty on all net sales of any such product for a period of 10 years
          from the effective date of this Agreement.  Such royalty shall be paid
          on a quarterly basis within 45 days after the end of each Millipore
          fiscal quarter. This payment shall be accompanied by sufficient
          information so that Mykrolis can determine how the calculation of net
          sales was made.  As used above, "net sales" shall mean cash
          collections from the invoiced selling price of those products less
          normal trade discounts, commissions paid to independent agents or
          distributors, returns or credits, excise and sales taxes.

     E.   In connection with disclosing the Inventions, Millipore shall
          cooperate fully with Mykrolis' attorneys in obtaining patents covering
          these Inventions, should Mykrolis in fact choose to file such
          applications.  To the extent such cooperation can be completed within
          the applicable time allocated for the Millipore personnel assigned to
          such Project, such cooperation is included in the costs set forth in
          Section 1(D) above.  If additional time is needed to complete such
          cooperation, then Mykrolis shall pay Millipore the applicable Research
          Costs (during the term of this

                                       7
<PAGE>

          Agreement, such costs shall increase, on an annual basis, 5% over the
          prior year's costs) for such additional time. Copies of all drafts and
          the final application shall be provided to the Millipore inventors and
          the Millipore Patent Counsel for review and consent before filing.
          Finally, if patenting a particular Invention would compromise the
          confidentiality of a Millipore trade secret, which is part of the
          Foundation, then, such patent will only be filed with the mutual
          written consent of the parties. Millipore shall promptly inform
          Mykrolis if it believes that its trade secrets would be compromised by
          such filing.

4.   Maintenance of Records

     Millipore shall make and maintain adequate and current records of all
     Inventions falling within the scope of this Agreement and of all work
     performed by it under this Agreement; and agrees to make them available to
     Mykrolis.

5.   Payments

     With respect to all compensation due hereunder, Millipore shall invoice
     Mykrolis on a quarterly basis.  Such invoice shall be for the research
     performed under Section 1, the Space, (including services provided under
     Section 2(B)) and any equipment, materials, Project related travel or other
     expenses contemplated by this Agreement.  Mykrolis shall make payment to
     Millipore within 45 days of receipt of the invoice.  The invoice shall
     include sufficient information and detail so that Mykrolis can reasonably
     determine its accuracy.  Late payments shall bear interest at the lesser of
     12% or the maximum rate allowed by law.

6.   Term and Termination

     A.   The term of this Agreement shall be for 5 years commencing on the
          effective date.  Mykrolis, however, may terminate this Agreement for
          its convenience prior to its normal expiration by providing Millipore
          with 12 months written notice of its desire to terminate.  In
          addition, Millipore may terminate this Agreement upon 30 days written
          notice if Mykrolis is acquired, directly or indirectly, by a company
          which competes directly with Millipore.  Also,  Mykrolis may terminate
          this Agreement upon 30 days notice if Millipore is acquired, directly
          or indirectly, by a company which competes directly with Mykrolis.

                                       8
<PAGE>

     B.   Either party may terminate this Agreement, by written notice to the
          other party:

          (i)    upon the material failure of the other party to observe, keep
                 or perform any of the covenants, terms or conditions herein, if
                 such default continues for 30 days after written notice by the
                 other party,

          (ii)   upon the institution by or against either party of insolvency,
                 receivership or bankruptcy proceedings or any other proceedings
                 for the settlement of its debts.

          (iii)  upon either party's assignment for the benefit of creditors,

          (iv)   upon either party's dissolution or ceasing to do business.

     C.   This Agreement, the Master Separation Agreement and all other
          Ancillary Agreements may be terminated at any time prior to the IPO
          Closing Date by and in the sole discretion of Millipore without the
          approval of Mykrolis.  This Agreement may be terminated at any time
          after the IPO Closing Date and before the Distribution Date by mutual
          consent of Millipore and Mykrolis.  In the event of termination
          pursuant to this Section 6(C), no party shall have any liability of
          any kind to the other party.

7.   Confidentiality

     A.   During the term of this Agreement, each party will be disclosing
          confidential information to the other party and learning, observing,
          or otherwise receiving the other party's confidential information.
          The parties shall presume that all information regarding the parties'
          respective research projects is confidential information.  In
          addition, this confidential information shall be the property of the
          party on whose behalf such research is performed.  The parties agree
          to respect the other party's confidential information, to not disclose
          it to any third parties, and to not use it for any purpose other than
          as contemplated by this Agreement.

                                       9
<PAGE>

     B.   Millipore agrees that all work performed by the Millipore personnel
          while assigned to the Mykrolis Project shall be considered the
          confidential information and property of Mykrolis.

     C.   This Agreement imposes no obligation upon either party with respect to
          information that:  (a) was developed after the date of this agreement
          and was in the possession of the receiving party before receipt from
          the disclosing party; (b) is or becomes a matter of public knowledge
          through no fault of the receiving party; (c) is rightfully received by
          the receiving party from a third party without a duty of
          confidentiality; (d) is disclosed by the disclosing party to a third
          party without a duty of confidentiality; (e) is independently
          developed by the receiving party; or (f) is necessary to be disclosed
          in a judicial or administrative process.

8.   Limitation Of Liability; No Warranties for Intellectual Property

     A.   NEITHER PARTY WILL BE LIABLE TO THE OTHER FOR ANY LOST PROFITS, LOSS
          OF DATA, LOSS OF USE, COST OF COVER, BUSINESS INTERRUPTION OR OTHER
          SPECIAL, INCIDENTAL, INDIRECT, PUNITIVE OR CONSEQUENTIAL DAMAGES,
          HOWEVER CAUSED, UNDER ANY THEORY OF LIABILITY, ARISING FROM THE
          PERFORMANCE OF, OR RELATING TO, THIS AGREEMENT.

     B.   EACH PARTY ACKNOWLEDGES AND AGREES THAT ALL TECHNOLOGY, INVENTIONS AND
          KNOW-HOW LICENSED OR ASSIGNED HEREUNDER ARE PROVIDED ON AN "AS IS" and
          "WHERE IS" BASIS AND THAT NEITHER PARTY NOR ANY OF ITS SUBSIDIARIES
          MAKE ANY REPRESENTATIONS OR EXTENDS ANY WARRANTIES WHATSOEVER,
          EXPRESS, IMPLIED OR STATUTORY, WITH RESPECT THERETO INCLUDING WITHOUT
          LIMITATION ANY IMPLIED WARRANTIES OF TITLE, ENFORCEABILITY OR NON-
          INFRINGEMENT.  Without limiting the generality of the foregoing,
          Millipore makes no warranty or representation as to the validity of
          any such know-how, technology, or inventions; and both parties make no
          warranty or representation that any use of any such know-how,
          technology, or inventions with respect to any product or service will
          be free from infringement of any rights of any third party.

                                       10
<PAGE>

9.   Force Majeure

     Each party will be excused for any failure or delay in performing any of
     its obligations under this Agreement, if such failure or delay is caused by
     Force Majeure.  "Force Majeure" means any act of God or the public enemy,
     any accident, explosion, fire, storm, earthquake, flood, or any other
     circumstance or event beyond the reasonable control of the party relying
     upon such circumstance or event.

10.  Dispute Resolution

     A.   Use and Initiation of Procedure.  In the event of a dispute between
          the parties arising out of or related to this Agreement (the
          "Dispute"), the parties hereto agree to use the alternative dispute
          resolution procedures specified in this section (the "Procedure") in
          good faith in order to resolve such dispute.  The Procedure may be
          modified by written agreement of the parties at the time the Dispute
          arises.  A party seeking to initiate the Procedure shall give written
          notice to the other party, describing briefly the nature of the
          dispute and its claim and identifying an individual with authority to
          settle the dispute on its behalf.  The party receiving such notice
          shall have five (5) days within which to designate, in a written
          notice given to the initiating party, an individual with authority to
          settle the dispute on its behalf.  Neither of such authorized
          individuals shall have had direct substantive involvement in the
          matters involved in the Dispute.

     B.   Unassisted Settlement.  The authorized individuals shall make such
          investigation as they deem appropriate and thereafter promptly (but in
          no event later than thirty (30) days from the date of the initiating
          party's notice) shall commence discussions concerning resolution of
          the Dispute.  If the Dispute has not been resolved within thirty (30)
          days from the commencement of discussions, it shall be submitted to
          alternative dispute resolution ("ADR") in accordance with the
          provisions of this Section 10 hereof.

     C.   Selection of Neutral.  The parties shall have ten (10) days following
          the submission of the Dispute to ADR in accordance with Section 10(B)
          above to agree upon a mutually-acceptable person not affiliated with
          either of the parties (the "Neutral").  If no Neutral has been
          selected within such time, the parties agree jointly to request the
          American Arbitration Association, the Center for Public Resources, or
          another mutually agreed-upon provider of neutral services to supply
          within ten (10) days a list

                                       11
<PAGE>

          of potential Neutrals with qualifications as specified by the parties
          in the joint request. Within five (5) days of receipt of the list, the
          parties shall independently rank the proposed candidates, shall
          simultaneously exchange rankings, and shall select as the Neutral the
          individual receiving the highest combined ranking who is available to
          serve.

     D.   Time and Place for ADR.  In consultation with the Neutral, the parties
          shall promptly designate a mutually convenient time and place for the
          ADR (and unless circumstances require otherwise, such time to be not
          later than forty-five (45) days after selection of the Neutral).

     E.   Exchange of Information.  In the event either of the parties has
          substantial need for information in the possession of the other party
          in order to prepare for the ADR, the parties shall attempt in good
          faith to agree on Procedures for the expeditious exchange of such
          information, with the help of the Neutral if required.

     F.   Summary of Views.  One week prior to the first scheduled session of
          the ADR, each party shall deliver to the Neutral and to the other
          party a concise written summary of its views on the matter in Dispute.

     G.   Staffing the ADR.  In the ADR, each party shall be represented by the
          authorized individual and by counsel.  In addition, each party may
          bring such additional persons as needed to respond to questions,
          contribute information and participate in the negotiations, the number
          of such additional persons to be agreed upon by the parties in
          advance, with the assistance of the Neutral, if necessary.

     H.   Conduct of ADR.  The parties, in consultation with the Neutral, will
          agree upon a format for the meetings, designed to assure that both the
          Neutral and the authorized individuals have an opportunity to hear an
          oral presentation of each party's views on the matter in Dispute, and
          that the authorized parties attempt to negotiate a resolution of the
          matter in Dispute, with or without the assistance of counsel or
          others, but with the assistance of the Neutral.  To this end, the
          Neutral is authorized to conduct both joint meetings and separate
          private caucuses with the parties.  The Neutral will keep confidential
          all information learned in private caucus with either party unless

                                       12
<PAGE>

          specifically authorized by such party to make disclosure of the
          information to the other party.

     I.   The Neutral's Views.  The Neutral (i) shall, unless requested not to
          do so by both parties, provide his opinion to both parties on the
          probable outcome should the matter be litigated, and (ii) shall make
          one or more recommendations as to the terms of a possible settlement,
          upon any conditions imposed by the parties (including, but not limited
          to, a minimum and maximum amount).  The Neutral shall base his
          opinions and recommendations on information available to both parties,
          excluding such information as may be disclosed to him by the parties
          in confidence.  The opinions and recommendations of the Neutral shall
          not be binding on the parties.

     J.   Termination of Procedure.  The parties agree to participate in the ADR
          in good faith to its conclusion (as designated by the Neutral) and not
          to terminate negotiations concerning resolution of the matters in
          Dispute until at least ten (10) days thereafter.  Each party agrees
          not to commence any other proceeding or to seek other remedies prior
          to the conclusion of the ten-day post-ADR negotiation period;
          provided, however, that either party may commence litigation within
          five (5) days prior to the date after which the commencement of
          litigation could be barred by an applicable statute of limitations or
          in order to request an injunction to prevent irreparable harm, in
          which event, the parties agree (except as prohibited by court order)
          to nevertheless continue to participate in the ADR to its conclusion.

     K.   Fees of Neutral; Disqualification.  The fees of the Neutral shall be
          shared equally by the parties.  The Neutral shall be disqualified as a
          witness, consultant, expert or counsel for either party with respect
          to the matters in Dispute and any related matters in any subsequent
          litigation or other proceeding with respect to the Dispute.

     L.   Confidentiality.  The parties agree that the Procedure and the ADR are
          compromise negotiations for purposes of the Federal Rules of Evidence
          and the Rules of Evidence of any state of competent jurisdiction.  The
          entire of the Procedure and the ADR are confidential, and no
          stenographic, visual or audio record shall be made.  All conduct,
          statements, promises, offers, views and opinions, whether oral or
          written, made in the course of the Procedure or the ADR by either of
          the parties,

                                       13
<PAGE>

          their agents, employees, representatives, or other invitees and by the
          Neutral (who will be the parties' joint agent for purposes of these
          compromise negotiations) are confidential and shall, in addition and
          where appropriate, be deemed to be work product and privileged. Such
          conduct, statements, promises, offers, views and opinions shall not be
          discoverable or admissible for any purposes, including impeachment, in
          any litigation or other proceeding involving the parties, and shall
          not be disclosed to anyone not an agent, employee, expert, witness, or
          representative of either of the parties; provided, however, that
          evidence otherwise discoverable or admissible is not excluded from
          discovery or admission as a result of its use in the ADR.

     M.   Arbitration.  Any Dispute which the parties cannot resolve through
          mediation within ninety (90) days following the commencement of the
          Procedure, unless otherwise mutually agreed, shall be submitted to
          final and binding arbitration under the then current Commercial
          Arbitration Rules of he American Arbitration Association ("AAA"), by
          three (3) arbitrators in Boston, Massachusetts.  Such arbitrators
          shall be selected by the mutual agreement of the parties or, failing
          such agreement, shall be selected according to the aforesaid AAA
          rules.  The arbitrators will be instructed to prepare and deliver a
          written, reasoned opinion stating their decision within thirty (30)
          days of the completion of the arbitration.  The prevailing party in
          such arbitration shall be entitled to expenses, including costs and
          reasonable attorneys' and other professional fees, incurred in
          connection with the arbitration (but excluding any costs and fees
          associated with prior ADR, negotiation or mediation).  The decision of
          the arbitrator shall be final and non-appealable and may be enforced
          in any court of competent jurisdiction.  The use of any ADR procedures
          will not be construed under the doctrine of laches, waiver or estoppel
          to adversely affect the rights of either party.

     N.   Continuity of Service and Performance.  Unless otherwise agreed in
          writing, the parties will continue to provide service and honor all
          other commitments under this Agreement and each Ancillary Agreement
          during the course of dispute resolution pursuant to the provisions of
          this Article 8 with respect to all matters not subject to such
          dispute, controversy or claim.

                                       14
<PAGE>

11.  Governing Law

     This Agreement shall be construed in accordance with and all Disputes
     hereunder shall be governed by the laws of the Commonwealth of
     Massachusetts as applied to transactions taking place wholly within
     Massachusetts between Massachusetts residents.  The Superior Court of
     Middlesex County and/or the United States District Court for the District
     of Massachusetts shall have jurisdiction and venue over all Disputes
     between the parties that are permitted to be brought in a court of law
     pursuant to Article 10 above.

12.  Entire Agreement

     This Agreement, the Separation and Distribution Agreement and the other
     Ancillary Agreements (as defined in the Separation and Distribution
     Agreement) and the Exhibits and Schedules referenced or attached hereto and
     thereto constitute the entire agreement between the parties with respect to
     the subject matter hereof and thereof and shall supersede all prior written
     and oral and all contemporaneous oral agreements and understandings with
     respect to the subject matter hereof and thereof.  To the extent there is a
     conflict between this Agreement and the General Assignment and Assumption
     Agreement between the parties, the terms of this Agreement shall govern.

13.  Notices

     Any notices or other communications required or permitted to be given or
     delivered hereunder shall be in writing and shall be sufficiently given if
     delivered personally, express mail or sent by first class mail, postage
     prepaid, to the following:

                      For Millipore:

                      Vinay Goel
                      Corporate Vice President, Technology Operations
                      Millipore Corporation
                      80 Ashby Road
                      Bedford, MA  01730

                      Copy to:
                      General Counsel
                      Millipore Corporation
                      80 Ashby Road
                      Bedford, MA  01730

                                      15
<PAGE>

                  For Mykrolis:

                  Jean-Marc Pandraud
                  Mykrolis Corporation
                  Patriots Park
                  Bedford, MA  01730

                  Copy to:
                  General Counsel
                  Mykrolis Corporation
                  Patriots Park
                  Bedford, MA  01730

14.  Assignment

     Mykrolis may not, directly or indirectly, in whole or in part, whether by
     operation of law or otherwise, assign or transfer this Agreement, without
     the prior written consent of Millipore, and any attempted assignment,
     transfer or delegation without such prior written consent shall be voidable
     at the sole option of Millipore.  Notwithstanding the foregoing, Mykrolis
     (or its permitted successive assignees or transferees hereunder) may assign
     or transfer this Agreement as a whole without consent to a person that
     succeeds to all or substantially all of the business or assets of Mykrolis
     as long as such Person agrees to accept all the terms and conditions set
     forth herein.  Without limiting the foregoing, this Agreement will be
     binding upon and inure to the benefit of the parties and their permitted
     successors and assigns.

15.  Further Assurances

     Each party agrees to execute and deliver as reasonably requested by the
     other party all further instruments and documents, and will take all
     further action, that may be necessary or desirable to effectuate the
     parties' intent hereunder.

16.  Severability

     If any term or other provision of this Agreement is determined by a court,
     administrative agency or arbitrator to be invalid, illegal or incapable of
     being enforced by any rule or law or public policy, all other conditions
     and provisions of this Agreement shall nevertheless remain in full force
     and effect so long as the economic or legal substance of the transactions
     contemplated hereby is not affected in any manner materially adverse to
     either party.  Upon such

                                       16
<PAGE>

        determination that any term or other provision is invalid, illegal or
        incapable of being enforced, the parties hereto shall negotiate in good
        faith to modify this Agreement so as to effect the original intent of
        the parties as closely as possible in an acceptable manner to the end
        that the transactions contemplated hereby are fulfilled to the fullest
        extent possible.

IN WITNESS WHEREOF the parties hereto have caused this Agreement to be executed
by their duly authorized representatives and to be effective as of the date and
year first above written.

MILLIPORE CORPORATION               MYKROLIS CORPORATION

By:  /s/ Francis J. Lunger          By:  /s/ Jean-Marc Pandrand
     ------------------------            ----------------------
     Francis J. Lunger                   Jean-Marc Pandrand

Its: Executive Vice President       Its: President
     ------------------------            ----------------------
Date:                               Date:
     ------------------------            ----------------------

                                      17
<PAGE>

                                   Exhibit A:

High Performance Filter
Further develop, scale up and RTM a new pore size UPE membrane with a specific
surface modification for an enhanced particle retention in low pH
Microelectronics process streams.

Orion
A Technology Development Project whereby novel surface chemistries are
conceived, synthesized and evaluated for their ability to impart stable
hydrophilic properties to PTFE membranes.

Non-sieving Technology
A Technology Development Project whereby mechanisms, methods and materials are
developed for identifying and testing surface chemistries.

QuickChange II
A development project to extend the QuickChange product line to new high flow
membranes.  The project will encompass the development of a surface modification
process.

                                      18

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