baber/WOPTO huggingface dataset:
Patent CA-1294633-C (CA)
Title: Process for the isomerization of unbranched hydrocarbons
Inventor: SIE SWAN T
IPC: C07C5/27
Filed: 1987-08-13
Granted: 1992-01-21
Abstract: A B S T R A C T                  PROCESS FOR THE ISOMERIZATION OF       UNBRANCHED HYDROCARBONS      A process for the isomerization of unbranched hydrocarbons by separating a feed mixture containing different unbranched hydro-carbons (e.g. C5-C7 n-paraffins) into at least two fractions having different average molecular masses, introducing each fraction separately in order of increasing average molecular mass further downstream into a series of isamerization zones operated at isomeri-zation conditions in the presence of hydrogen and an isomerization catalyst, and removing product from the furthest downstream zone.
Patent CA-1306125-C (CA)
Inventor: ENGEL GEORG
IPC: B21B31/18
Filed: 1987-08-21
Granted: 1992-08-11
Abstract: ABSTRACT OF THE DISCLOSURE         In order to fix the relative axial position of a roll of a rolling mill and particularly when rolling asymmetrical profiles to improve the maintenance of tolerances for flange thicknesses of rolled sections, at least one roll is provided with a double acting hydraulic cylinder for axial positioning of the roll.  The axial position is held fixed by an actual value-set value comparison by a control device.  The actual value measurement of the roll axial position during an operating pass in which the rolls have changing axial forces is taken as close as possible to the rolled section for elimination of the position shifts due to compressibility or flexibility of components.
Patent CA-1278294-C (CA)
Inventor: RITCHIE GEORGE S
IPC: C08H7/00
Filed: 1987-09-17
Granted: 1990-12-27
Abstract: Abstract The chemical components of lignocellulosic material which have been dissociated by a steam explosion process can be extracted from the mixture of components using a solvent extraction process.  The solvents are water, alcohol and a mild caustic in that order, or the alcohol step can be by-passed and only water and caustic are used.  The caustic is a stronger solvent and it will extract the alcohol solubles along with the caustic only solubles.  The eluant from the these extractions contains a range of lignin derived substances, which have different applications, such as thermoplastic and thermosetting characteristics.  This invention describes a method for partitioning these lignin components into reproducible fractions having definable characteristics for particular applications.  For instance, many copolymer applications require a thermosetting only fraction of the lignin.  Other applications require a thermoplastic only lignin.  The patent also describes a process for converting the thermoplastic lignin fraction to thermosetting lignin.
Patent CA-1289670-C (CA)
Title: Method and device to execute two instruction sequences in an order determined in advance
Inventor: JOHNSON STEN E
IPC: G06F/
Filed: 1987-10-01
Granted: 1991-09-24
Abstract: ABSTRACT OF THE DISCLOSURE           A data processing system executes two instruction sequences in an order determined in advance.  The executions include selection of read/write instructions containing read/ write addresses.  With the aid of the instructions a main memory common to both sequences is activated for data information read-ing/writing.  During execution of the sequence which is second due to the order, data information is used which is not guaran-teed in advance as being independent of the data information obtained during execution of the sequence which is first due to the order.  Increased data handling capacity is achieved in the following manner: both sequences are executed in parallel to start with.  During execution of the first sequence the main mem-ory is prevented from being activated for writing due to the sec-ond sequence write instructions.  A write address and data infor-mation included in a write instruction associated with the second sequence are intermediate-stored.  The intermediate stored write address is compared with the read addresses of the second sequence, and data information is prevented from being read from the main memory upon likeness in addresses, the intermediate-stored data information being read instead.  An address included in a read instruction associated with the second sequence is intermediate stored if this address has not been previosuly selected in conjunction with a write instruction associated with the second sequence.  The intermediate-stored read address is compared with the write address of the first sequence and execu-tion of the second sequence is restarted upon likeness in addresses.  When the first sequence has been finally executed, the intermediate-stored data information is transferred with the aid of the intermediate stored write address to the main memory.
Patent CA-1278141-C (CA)
Title: Preparation of anhydride copolymers
Inventor: DOMB ABRAHAM J
IPC: C08G67/00
Filed: 1987-10-15
Granted: 1990-12-18
Abstract: PREPARATION OF ANHYDRIDE COPOLYMERS     Abstract of the Invention A method for preparation of very pure anhydride copolymers with high yield.  The anhydride copolymers, consisting of aromatic and aliphatic diacids are formed by melt condensation of individually prepared, pure, isolated prepolymers.  The method of preparation is characterized by high yield, reproducibility, polymer purity and controlled composition, and is a short and convenient procedure.  The polyanhydrides produced by the disclosed method are particularly well suited to biomedical applications requiring low levels of toxic or inflammatory contaminants and physical and mechanical properties which closely conform to manufacturing specifications.
Patent CA-1287835-C (CA)
Title: Epoxidized isocyanates and process for their preparation
Inventor: WATERMAN PAUL S
IPC: C08G59/02
Filed: 1987-10-30
Granted: 1991-08-20
Abstract: 29,716 EPOXIDIZED ISOCYANATES AND PROCESS FOR THEIR PREPARATION            ABSTRACT A process is disclosed for preparation of novel epoxy-substituted aralkyl isocyanates by reaction of terti-ary aralkyl olefins and an eposidizing agent at a temp-erature of from -35°C to about 50°C.  The compounds are useful as intermediates to produce curing agents for poly-functional active hydrogen-containing compounds, e.g., by reaction with polyols to produce epoxy-pendant urethanes and then with  polyamines, and the like.
Patent CA-1310243-C (CA)
Title: Copyholder
Inventor: EVENSON MEL
IPC: A47B23/04
Filed: 1987-12-02
Granted: 1992-11-17
Abstract: Abstract Of The Disclosure A copy holder which is useful in holding items such as comparatively thick bookscan be constructed so that holdfasts capable of engaging whatever is held in the copy holder are movably mounted in openings in the copy holder. When so held these holdfasts are engaged by a conventional type spring loaded clamping member on the copy holder so that they are secured against movement as a result of such engagement.
Patent CA-1332075-C (CA)
Inventor: ISHIBE SHINJI
IPC: H01T1/16
Filed: 1988-02-12
Granted: 1994-09-20
Abstract: ABSTRACT OF THE DISCLOSURE      In this lightning protection apparatus of the inven-tion, an insulating plate being mounted on an earthing side end portion of an insulating tube is formed of an insulating member which is integrally formed by metal member and serves as both an earth terminal and a bursting plate, so that above arrangement simplifies the construction of the earth side end portion of the insulating tube, facilitates assem-bly operation, and permits cost saving.
Patent CA-1303267-C (CA)
Title: Block copolymer dispersants
Inventor: WEST MICHAEL W J
IPC: C09B67/46
Filed: 1988-02-18
Granted: 1992-06-09
Abstract: TITLE                 BLOCK COPOLYMER DISPERSANTS               ABSTRACT           Block copolymers composed of similar monomers but which exhibit substantially different polarity provide excellent performance as pigment dispersants.  One of the blocks has cationic ammonium, phosphonium or sulfonium moieties.  Each of the blocks is formed from monomers of the formulas CH2=CHCO2R and CH2=CCH3CO2R, where R is alkyl or alkyl ether, with one of the blocks containing at least two pendant ionic moieties.  The block copolymers may be prepared using group transfer polymerization techniques.
Patent CA-1288556-C (CA)
Inventor: PARKINS JOHN H
IPC: A47L23/22
Filed: 1988-03-02
Granted: 1991-09-10
Abstract: ABSTRACT OF THE DISCLOSURE A plurality of rubber-backed dust control mats are interconnected by a connecting strip which has projections thereon which engage mating projections on the outer surface of the rubber backing on the mats.
Patent CA-1296392-C (CA)
Title: Intensity controller for an aperture card plotter
Inventor: SPEKTOR SEMYON
IPC: B41J2/44
Filed: 1988-03-10
Granted: 1992-02-25
Abstract: Abstract of the Disclosure A system for controlling the intensity of a scanning laser beam used to plot a computer-output microfilm image on an aperture card.  The intensity of the beam is controlled by an acousto-optic modulator, which varies the light contained in various components of the modulated output.  The first order beam is used for scanning the microfilm because it can be varied from its maximum intensity down to essentially cut-off without requiring large amounts of modulator drive.  The intensity control is accomplished in two stages.  First, before each scan across the microfilm, a known fraction of the first order beam is split off and sensed for intensity level.  This level is directly proportional to the scan beam intensity.  The sensed level is then compared to a preset voltage representing the proper exposure operating point for that manufacturer's microfilm characteristics. An error signal is produced by the comparison and is fed into a hold circuit.  During this non-microfilm scanning portion of the cycle, the error signal updates the modulator drive level to continuously vary the modulated beam intensity in a way to minimize the error signal, thus, in closed-loop fashion the scan beam intensity is controlled to the proper exposure operating point.  Second, as each scan line of the microfilm begins, the hold circuit is switched to "hold" mode so the intensity level sensed before the scan is the level that is held during the subsequent scan. During the scan, pixel data is modulated to the "held" intensity level in order to control the modulation of the scan beam intensity to the operating level.  By modulating the beam in a purely binary fashion according to pixel data as is scans across the microfilm, a microfilm image is reproduced.
Patent CA-1338207-C (CA)
Title: Method of assaying of nucleic acids, a reagent combination and kit therefore
Inventor: SODERLUND HANS
IPC: C12Q1/68
Filed: 1988-03-10
Granted: 1996-04-02
Abstract: A rapid and sensitive method for assaying nucleic acids by means of hybridization techniques is disclosed, wherein the detector probes or capturing probes are modified primers being incorporated into copies of the target nucleic acid before the hybridization reaction. Depending on the choice of the modified primer, a selective capturing or detector probe is used in the following hybridization reaction, which enables the selective separation or detection of the copies of the target nucleic acid wherein the modified primers have been incorporated.
Patent CA-1334755-C (CA)
Title: Benzopyranopyridineacetic acid ester compounds and their pharmaceutical uses
Inventor: OE TAKANORI
IPC: C07D491/052
Filed: 1988-03-17
Granted: 1995-03-14
Abstract: Benzopyranopyridineacetic acid ester compounds of the formula:       wherein R1, R2 and R3 independently represent hydrogen or C1-4 alkyl; and n is 1 or 2, and their pharmaceutical use are disclosed.    These compounds possess antiinflammatory, analgesic and antipyretic activities with less adverse action on the gastrointestinal tract.
Patent CA-1315907-C (CA)
Inventor: YOKOYAMA AKIRA
IPC: C08L51/06
Filed: 1988-05-02
Granted: 1993-04-06
Abstract: ABSTRACT       In accordance with the present invention, there are provided fiber reinforced heat-resistant polyolefin compositions comprising 5-85% by weight of polyphenylene sulfide (A), 15-95% by weight of modified polyolefin (B) having a melting point of above 200°C, which has been graft-modified, either partly or wholly, with 0.01-10% by weight of unsaturated carboxylic acid or if derivative, 10-60 parts by weight, based on 100 parts by weight of (A) + (B), of reinforcing fiber (C) and, if necessary, 5-30 parts by weight, based on 100 parts by weight of (A) +          (B), of oxazoline-modified polystyrene (D).  The compositions thus provided are excellent in heat resistance, water resistance, moisture resistance and solderability, and that excellent in mechanical strength.
Patent CA-1339825-C (CA)
Title: Procede et installation de preparation de tetrafluorure d'uranium
Inventor: PETIT JANY
IPC: C01G43/00
Filed: 1988-06-01
Granted: 1998-04-21
Abstract: Un procédé de préparation de tétrafluorure d'uranium comporte les étapes suivantes. On réduit catalytiquement par l'hydrogène,  en présence d'ions H+,  une solution de sel d'uranium (VI) soluble en une solution d'un sel d'uranium (IV) soluble. On fait réagir le sel d'uranium (IV) obtenu à l'étape précédente avec de l'acide  fluorhydrique,  afin d'obtenir la précipitation de tétrafluorure d'uranium. On récupère le tétrafluorure d'uranium sous forme de précipité.
Patent CA-1309026-C (CA)
Title: Stable 5-fluorouracil compositions
Inventor: JOHNSON JAMES B
IPC: A61K47/02
Filed: 1988-06-02
Granted: 1992-10-20
Abstract: ABSTRACT   5-Fluorouracil compositions of pH greater than 9.0 and less than 9.4 consisting essentially of a solution of 5-fluorouracil and a base are stable at temperatures down to 0°C (32°F).
Patent CA-1300799-C (CA)
Title: Production of polycarbonates
Inventor: HUDSON BARRY
IPC: C08G64/30
Filed: 1988-07-14
Granted: 1992-05-12
Abstract: Case 6616(2) ABSTRACT OF THE DISCLOSURE                   PRODUCTION OF POLYCARBONATES      This invention relates to an integrated process for producing polycarbonates by transesterification of a dialkyl carbonate with a bisphenol diester to form a carbonate oligomer and an alkyl ester followed by polymerisation of the oligomer to a polycarbonate.  The feature of the invention lies in the carbonylation of the alkyl ester by-product formed during the transesterification step to an anhydride which is used to esterify bisphenol to the diester.
Patent CA-1325972-C (CA)
Title: Transdermal detection system
Inventor: PECK CARL C
IPC: A61B10/00
Filed: 1988-08-15
Granted: 1994-01-11
Abstract: ABSTRACT OF THE INVENTION           A transdermal detection system for the detection of a target substance which migrates to the surface of the skin of a subject by diffusion comprises detector means and attachment means.  The detector means includes at least one detector chemical contained in solution and capable of chemically reacting with the target substance as the target substance migrates to the skin surface of the subject to produce a detectable signal, and a barrier means for substantially preventing migration of the detector chemical into the skin surface of the subject.          The attachment means maintains the detector means adjacent the surface of the skin of the subject.
Patent CA-1332014-C (CA)
Title: Thermoplastic resin composition and method for preparing the same
Inventor: ORIKASA YUICHI
IPC: C08L63/00
Filed: 1988-08-16
Granted: 1994-09-13
Abstract: ABSTRACT OF THE DISCLOSURE      There is here provided a thermoplastic resin composi-tion which comprises (I) 99 to 1% by weight of an aromatic polyester resin, (II) 1 to 99% by weight of at least one kind of resin selected from the group consisting of a polyphenylene ether resin, a mixture of the polyphenylene ether resin and a styrene polymer, a polycarbonate resin, and a polyarylene sulfide resin, (III) 0.1 to 100 parts by weight, based on 100 parts by weight of the aforesaid resins (I) + (II), of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of an epoxy group-containing olefin copolymer and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one kind of vinyl monomer, either of both the components being formed with a dispersion phase having a particle diameter of 0.001 to 10 µm.  A method for preparing the above-mentioned thermoplastic resin composition is also provided here.
Patent CA-1303312-C (CA)
Inventor: HONG SUNG W
IPC: B29C48/29
Filed: 1988-08-26
Granted: 1992-06-16
Abstract: PROCESS FOR EXTRUDING A PUNCTURE SEALANT   AND FORMING AN ELASTOMERIC LAMINATE                 ABSTRACT OF THE DISCLOSURE    A process is disclosed for extruding a flat  strip of uniformly thick sealant stock from an extruder which ex-trudes the sealant stock with a rotary helical action. The stock consists essentially of a vulcanizable mixture of a high molecular weight (mol wt) elastomer, a low mol wt elastomer, a curing agent and a processing aid selected from a tackifier and a homogenizer. The strip is less than about 10 mm thick, and at least 10 times as wide as it is thick. The stock does not flow and cannot be poured even at 212°F. The stock is supplied to the extruder by a recipro-cating pump which maintains an intermittent pressure yet provides the required uniform thickness of strip. Each component of the stock strongly adheres to any surface, to all metal surfaces and to each other, making it difficult to obtain a homogeneous mixture. The rate at which the strip is discharged from the extruder is maintained sub-stantially constant, and its thickness controlled by the speed of a horizontal endless belt conveyor onto which the vertically hanging strip is continuously discharged. A spray coating of aqueous polyvinyl alcohol, which is then dried, leaves a detackified surface without which the ex-trudate could not be handled.
Patent CA-1318256-C (CA)
Title: Exhaust muffler for two-cycle motors, in particular as used for portable tools such as power saws
Inventor: FISCHER HARTMUT
IPC: F01N13/00
Filed: 1988-09-02
Granted: 1993-05-25
Abstract: ABSTRACT          In exhaust mufflers fitted with a catalytic converter, when used for portable tools such as power saws, the formation of flames from the exhaust gases which are superheated by the exo-thermic process within the catalytic converter and which still contain fuel and which may escape from the muffler, is to be avoided.  To this end the catalytic converter can constitute the connection between separate chambers in a muffler that is at least partially welded, and the muffler can be arranged directly on the engine outlet.
Patent CA-1298343-C (CA)
Title: Fluorescent lamp unit with integral ballast housing
Inventor: GANDHI HARISH F
IPC: H01J61/56
Filed: 1988-09-21
Granted: 1992-03-31
Abstract: PHA.21400                                      18-7-1988 ABSTRACT: Fluorescent lamp unit with integral ballast housing.           A fluorescent lamp unit adapted for use in an incandescent lamp socket includes a tube, a cap member having a base wall in which the tube is fixed, and a ballast housing having a primary cavity which is substantially defined by a circumferential wall and closed toward the cap member to create a secondary cavity which thermally isolates the tube from the ballast. The housing further includes a partition which isolates conduits for the wire leads from the primary cavity and each other, whereby uninsulated leads may be used. A potted ballast completely fills the primary cavity to improve heat dissipation through the circumferential wall.
Patent CA-1289191-C (CA)
Title: Detection of transposition group short circuits in machine windings
Inventor: HUGHES KEVIN B
IPC: H02K11/00
Filed: 1988-10-13
Granted: 1991-09-17
Abstract: 9                       53,927 ABSTRACT OF THE DISCLOSURE A  method   for  nondestructively  electronically detecting a short circuit  in a  conductor system  which is composed of two parallel inductor groups connected together to form a  selected  current  path  when  no  short circuit exists, by  the steps  of: disposing  a current  probe at a selected location of the  current path  for sensing changes in the  current flowing  in the  path at the selected loca-tion;and injecting a fast  rate-of-rise current  pulse into the path;  and monitoring the response of the current probe to provide  an  indication  of  the  existence  of  a short circuit.
Patent CA-1305388-C (CA)
Title: Electrically conductive microemulsions based on perfluoropolyethers
Inventor: CHITTOFRATI ALBA
IPC: C08J3/03
Filed: 1988-10-27
Granted: 1992-07-21
Abstract: ABSTRACT OF THE DISCLOSURE:         Microemulsions of the water-in-oil type (w/o) are disclosed, which are capable of effecting ionic electric transfer and material interphase transfer.  The oily phase of these microemulsions consists of a perfluoropolyether having perfluoroalkyl end groups or functional end groups of the hydrophilic type.  These microemulsions are obtained by using perfluorinated surfactants, in particular having a perfluoroalkylpolyethereal structure, and/or an alcohol as a co-surfactant.
Patent CA-1338571-C (CA)
Title: 3-(substituted)-1-carba (dethia)-3-cephems and cephalosporins and a process for production therefor
Inventor: COOK GWENDOLYN KAY
IPC: A61P31/04
Filed: 1989-03-21
Granted: 1996-09-03
Abstract: Cephalosporin and 1-carba(1-dethia)ceph-alosporin antibiotics substituted in the 3-position with, inter alia, alkyl, alkenyl and alkynyl, are provided via a process comprising conversion of a cephalosporin or 1-carba(1-dethia)-3-cephem sub-stituted in the 3-position with halogen or a sulfonyloxy ester with Pd(O) mediated alkylation with organostannanes.
Patent CA-1330273-C (CA)
Inventor: ZEMELMAN VALERY
IPC: A23P20/10
Filed: 1989-03-29
Granted: 1994-06-21
Abstract: COATED COMPOSITION USED TO IMPROVE     COATED FRIED BAKERY PRODUCTS                             ABSTRACT           A unique coating composition is described for coating a fried bakery product such as a donut to control moisture migration from coated bakery products especially chocolate coated donuts which remain soft in texture and of stable quality over extended periods of time.
Patent CA-1335400-C (CA)
Inventor: BOOKBINDER DANA C
IPC: C08K3/34
Filed: 1989-05-11
Granted: 1995-04-25
Abstract: The present invention relates to a wholly aromatic polyetherimide further containing sulfur containing groups in the backbone of the polyetherimide.  The polyetherimide is characterized by extremely high glass transition temperatures, high chemical resistance and thermogravimetric stability.
Patent CA-1331185-C (CA)
Title: Intermediates for preparing 1,4-dihydro-4-oxo- quinoline-3-carboxylic acid esters
Inventor: BUSCH FRANK R
IPC: C07C205/12
Filed: 1989-05-17
Granted: 1994-08-02
Abstract: INTERMEDIATES FOR PREPARING 1,4-DIHYDRO-4-OXO-QUINOLINE-3-CARBOXYLIC ACID ESTERS        Abstract Compounds of the formula:               IV     wherein Y is OR1, fluoro, chloro, methyl, - ? - ? - OR2,   , or      ;                 ;          R1, and R3 are independently selected from hydrogen and C1-C4 alkyl, R2 is C1-C4 alkyl and X is fluoro, chloro or bromo, with the proviso that when Y is OH, X cannot be bromo and with the proviso that X can be fluoro only if R2 is methyl.
Patent CA-1336503-C (CA)
Title: Use of 5-heteroaryl- or 5-aryl-substituted imidazo[2,1-a] isoquinolines
Inventor: HOULIHAN WILLIAM JOSEPH
IPC: C07F7/08
Filed: 1989-07-28
Granted: 1995-08-01
Abstract: Compounds of formula I       wherein the substituents have various significances, are indicated for use in controlling hyperreactive airways induced by PAF or allergen and in the prophylactic treatment of asthma.  A preferred route of administration is by inhalation.