Document:

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                                                                   Exhibit 10.17

                                                      Prepared by:

                                                        /s/ Jeffrey G. Albertson
                                                      JEFFREY G. ALBERTSON, ESQ.
                                                      Albertson Ward
                                                      36 Euclid Street
                                                      P.O. Box 685
                                                      Woodbury, NJ 08096
                                                      (609) 853-7770

                                                       NOTE

$5,000,000.00                                              WOODBURY, NEW JERSEY
                                                           JUNE 24, 1998

     PAYMENT OBLIGATION: FOR VALUE RECEIVED, BORROWER K-TRON AMERICA, INC., A
DELAWARE CORPORATION does hereby bind and oblige itself to pay to the order of
THE BANK OF GLOUCESTER COUNTY (hereinafter referred to as "THE BANK"), at its
offices, 100 Park Avenue, Woodbury, New Jersey 08096 the maximum principal sum
of FIVE MILLION DOLLARS ($5,000,000.00) or such lesser amount as may from time
to time be advanced by THE BANK and remain outstanding under this Note with
interest thereon at the rate of 0.00% above THE WALL STREET JOURNAL'S Prime
Rate. Interest shall be calculated hereunder for the actual number of days that
principal is outstanding based on a year of 360 days. This loan shall be repaid
over a term of two (2) YEAR(S) AND NINE DAYS during which the BORROWER shall
make monthly payments of interest only on the FIRST DAY of each month. All
principal and accumulated interest shall be due on JULY 3, 2000; provided
however, this note shall be for the purpose of creating a line of credit in the
maximum amount of FIVE

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MILLION DOLLARS ($5,000,000.00) during which period of time principal may be
increased or reduced at the option of the BORROWER subject to the said maximum
amount. Further, the principal amount outstanding on this Line of Credit shall
never exceed the sum of EIGHTY (80%) PERCENT of accounts receivable aged ninety
(90) days or less plus a sum representing FIFTY (50%) PERCENT of the current
inventory valuation. The BORROWER shall submit to THE BANK on a monthly basis
its accounts receivable certification (via its "DSO" Report) and on a quarterly
basis its accounts receivable aging along with the inventory certification.

     PRIME RATE: PRIME RATE as used herein is defined as that rate of interest
established from time to time by THE WALL STREET JOURNAL and announced as its
PRIME RATE. For the purposes hereof, PRIME RATE is influenced by varying factors
including money market conditions which cannot be predicted with any degree of
certainty and which may cause the PRIME RATE to fluctuate at variable intervals
at the discretion of THE WALL STREET JOURNAL. The rate announced by THE WALL
STREET JOURNAL as its PRIME RATE may or may not be the rate charged by THE BANK
to its most creditworthy borrowers.

     SECURITY: The BORROWER hereunder has delivered as security for this
instrument a first perfected security interest on all inventory and accounts
receivable now owned and/or hereafter acquired by BORROWER, including insurance
proceeds therefrom.

     PREPAYMENT: BORROWER shall have the right to prepay this Note in whole or
in part at any time without penalty. Prepayments shall first be applied to
interest due and then to the remaining principal.

     LATE CHARGE: The effective date of the receipt by the holder of any
installment of this Note shall be the day on which the holder receives cash or
collected funds at the place of

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payment as specified herein in payment of any such installment. BORROWER shall
be entitled to a FIFTEEN (15) DAY grace period after which period a "late
charge" of $0.05 FOR EACH $1.00 SO OVERDUE OR $25.00 WHICHEVER IS GREATER, may
be charged by the holder for the purpose of defraying the expense incident to
handling such delinquent payment.

     DEFAULT: If any installment of this Note or interest payment is not paid
within FIFTEEN (15) DAYS of the date and at the place herein specified, THE BANK
may at its option, and without further notice declare this Note to be in default
and the entire principal balance then remaining unpaid together with all
interest which shall have accrued on the unpaid principal balance from and after
the date of such default shall be due and payable in full without notice.

     If a default shall occur in this loan and not be cured as provided in the
loan documents or otherwise agreed to by THE BANK, THE BANK shall, after
declaring the loan to be in default, have the right to increase the interest
rate TWO (2%) percent in excess of the note rate. This provision is in addition
to any late charges that may be due.

     ATTORNEY'S FEE: If this Note is placed in the hands of an attorney for
collection because of a default in the terms hereof or in the terms of the
security agreement as security for the within obligation, the undersigned
jointly and severally agree to pay the reasonable fees and costs of such
attorney, whether or not legal action is instituted and further consent that if
a judgment is entered in any action the amount of such fees shall form a part of
such judgment in addition to any fees allowed by Statute or Rule of the Court.

     COMMITMENT LETTER COMPLIANCE: This Note is contingent upon BORROWER'S
compliance with all of the terms and conditions contained in the commitment
letter issued by THE BANK to BORROWER on June 23, 1998. Upon breach of any term
or

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condition contained therein THE BANK shall have the right to declare this loan
in default and demand payment in full of the principal balance remaining unpaid,
together with all interest which shall have accrued thereon.

     PAYMENT AT MATURITY: THIS LOAN IS PAYABLE IN FULL AT MATURITY OR UPON
DEMAND IN THE EVENT OF A DEFAULT HEREUNDER OR DEFAULT UNDER THE FINANCING
AGREEMENT SECURING THIS NOTE OR DEFAULT UNDER THE TERMS OF ANY OTHER LOAN
INSTRUMENT. YOU MUST REPAY THE ENTIRE PRINCIPAL BALANCE OF THE LOAN AND UNPAID
INTEREST THEN DUE. THE BANK IS UNDER NO OBLIGATION TO REFINANCE THE LOAN AT THAT
TIME. YOU WILL THEREFORE BE REQUIRED TO MAKE PAYMENT OUT OF OTHER ASSETS YOU MAY
OWN OR YOU WILL HAVE TO FIND A LENDER WILLING TO LEND YOU THE MONEY. IF YOU
REFINANCE THIS LOAN AT MATURITY, YOU MAY HAVE TO PAY SOME OR ALL OF THE CLOSING
COSTS NORMALLY ASSOCIATED WITH A NEW LOAN EVEN IF YOU OBTAIN REFINANCING FROM
THE BANK.

     WAIVER OF PRESENTMENT: EACH AND ALL PARTIES hereto whether maker,
endorsers, sureties, guarantor or otherwise do hereby jointly and severally
waive presentment and demand for payment, notice of dishonor, protest and notice
of protest.

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     IN WITNESS WHEREOF. the BORROWER hereunder has hereunto set their hands and
seals the day and year first above written.

ATTEST:                                               K-TRON AMERICA, INC.
                                                      BY:

 /s/ Patricia M. Moore                                 /s/ Kevin C. Bowen
PATRICIA M. MOORE                                     KEVIN C. BOWEN, PRESIDENT
VICE PRESIDENT/FINANCE<PAGE>   1
                                                                   Exhibit 10.18
                          THE BANK OF GLOUCESTER COUNTY
                           LOAN MODIFICATION AGREEMENT
                              K-TRON AMERICA, INC.
Date: July 22, 1999

ACCOUNT #6039359-6600                                Maturity Date: July 3, 2001
Original Amount: $ 5,000,000.00                      Annual Fee: $12,500.00
Present Balance: $         0.00

     WHEREAS, the undersigned borrower executed the note referred to above on
June 27, 1998, And,

     WHEREAS, the note, security agreement and commitment letter executed by the
borrower allow a modification of interest rate, due date or other terms or
conditions without affecting the priority of The Bank of Gloucester County's
lien.

     NOW, therefore, in consideration of an annual fee of $12,500.00, the above
referenced note is extended and modified as follows:

     IT IS HEREBY AGREED THAT THE ABOVE NUMBERED NOTE SHALL BECOME DUE JULY 3,
     2001. DURING THE TERMS OF THE RENEWAL, PAYMENTS OF INTEREST ONLY SHALL BE
     DUE EACH MONTH BEGINNING AUGUST 1, 1999 AND SHALL BE APPLIED TO INTEREST
     AND THEN TO PRINCIPAL.

     BORROWER AGREES THAT UNTIL ALL OBLIGATIONS HEREUNDER ARE FULLY PAID AND
     DISCHARGED, BORROWER WILL NOT WITHOUT PRIOR WRITTEN CONSENT OF THE BANK:

          PERMIT THE CONSOLIDATED NET WORTH OF BORROWER, DETERMINED IN
          ACCORDANCE WITH GENERALLY ACCEPTED ACCOUNTING PRINCIPLES CONSISTENTLY
          APPLIED, TO BE LESS THAN $7,000,000 AT DECEMBER 31,1999, OR PERMIT THE
          RATIO OF CONSOLIDATED TOTAL LIABILITIES TO CONSOLIDATED NET WORTH TO
          BE MORE THAN 2.50:1 AT DECEMBER 31, 1999.

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     All terms and conditions of the original note, commitment letter and any
security thereto attached is fully incorporated herein and fully ratified except
as specifically modified by this modification agreement.

                                           K-TRON AMERICA, INC.

THE BANK OF GLOUCESTER COUNTY               /s/ Kevin C. Bowen           7/30/99
                                           KEVIN C. BOWEN, PRESIDENT/DATE

By: /s/ David J. Hanrahan                   /s/ Patricia M. Moore        7/26/99
      David J. Hanrahan, Sr., VP           PATRICIA M. MOORE/VP/FINANCE/DATE<PAGE>   1
                                                                     Exhibit 4.1

Number

RA

RADIAN GROUP INC.
   CORPORATE
     SEAL
     1991
   DELAWARE

Common Stock
                                                                          Shares

RADIAN

RADIAN GROUP INC.                                            [ARTWORK OF
                                                            LADY LIBERTY
Incorporated under the laws of the state of Delaware       SUPERIMPOSED ON
                                                       MAP OF THE UNITED STATES]
See reverse for certain definitions.

THIS CERTIFIES THAT                                            CUSIP 750236 10 1

is the owner of

FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF

Radian Group Inc, transferable on the books of the Corporation by the holder
hereof in person or by duly authorized attorney upon surrender of this
Certificate properly endorsed. This Certificate is not valid unless
countersigned and registered by the Transfer Agent and Registrar. Witness the
facsimile seal of the Corporation and the facsimile signatures of its duly
authorized officers.

Dated

                                         /s/ Frank P. Filipps
                                         ---------------------------------------
                                         Chairman and Chief Executive Officer

                                         /s/ Howard S. Yaruss
                                         ---------------------------------------
                                         Secretary

Countersigned and registered:    by

THE BANK OF NEW YORK

Transfer Agent and Registrar     Authorized Signature

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