baber/WOPTO huggingface dataset:
Patent CA-1293587-C (CA)
Inventor: MATSUURA MITSUYUKI
IPC: C08F4/654
Filed: 1987-08-17
Granted: 1991-12-24
Abstract: ABSTRACT OF THE DISCLOSURE There is provided a process for polymerization of an .alpha.-olefin which comprises polymerizing an .alpha.-olefin in the presence of a catalyst which is a combination of a solid component (A),  which  is  obtained  by  subjecting  a composition (A0) comprising as the essential ingredients titanium,  magnesium  and  a  halogen  to  preliminary polymerization of the .alpha.-olefin conducted in the presence of said composition in a slurry and an organoaluminum compound,  and  an  organoaluminum  compound (B),  said preliminary polymerization being conducted in two steps: the  first step  wherein  the  concentration  of  said composition  (A0)  in  the  slurry is  adjusted to  10-100 g/lit.-solvent  and  polymerization  of  the  .alpha.-olefin  is conducted at  30°C or  lower  so  that  the  amount  of  a polymer  produced  is  0.001  to  1  g per  gram  of  said composition and the second step wherein polymerization of the .alpha.-olefin is conducted at 60°C or higher under the same condition of the concentration of siad composition as in the first step so that the amount of a polymer produced is 1 to 10 g per gram of said composition.     According  to  this  process,  an  .alpha.-olefin  is polymerized at a possible elevated temperature and an a-olefin polymer  having high stereoregularity,  excellent polymer properties and improved odor is produced in a high yield.
Patent CA-1283244-C (CA)
Inventor: ISHIKAWA TOMOHIRO
IPC: C08G75/02
Filed: 1987-09-16
Granted: 1991-04-16
Abstract: Abstract of the Disclosure:         Aromatic sulfide amide polymers composed of a repeating unit having the formula (I) and a repeating unit having the formula (II) below, having an inherent viscosity ranging from 0.02 to 10 dl/g,                         (I) ?Ar4(R4)d-S?                     (II) wherein, Ar1, Ar2, Ar3 and Ar4 are same or different aromatic rings and R1, R2, R3 and R4 are groups selected from the group consisting of alkyl groups having 1 - 20 carbon atoms, cycloalkyl groups having 3 - 20 carbon atoms, aryl groups having 6 - 20 carbon atoms, alkoxyl groups having 1 - 20 carbon atoms, acyl groups having 2 - 20 carbon atoms, and aralkyl groups having 7 - 20 carbon atoms, and the four R's may be the same or different from each other, and a, b, c and d stand for integers from 0 - 4 and may be the same or different from each other, and the process comprises sulfide forming reaction of an amide group containing dihalogenide expressed by the general formula (III) with an aromatic dihalogenide expressed by the general formula (IV) under the action of a sulfide forming reagent,                         (III) X-Ar4(R4)d-Y                   (IV)
Patent CA-1289578-C (CA)
Title: Air spring having internal sealing band and method of installing same
Inventor: GENO WAYNE H
IPC: F16J3/02
Filed: 1987-09-16
Granted: 1991-09-24
Abstract: ABSTRACT OF THE DISCLOSURE             An air spring for motor vehicles including first and second end members, at least one of which is a piston, with an intervening flexible sleeve forming a fluid pressure chamber therebetween sealingly connected to the end members.  A continuous annular sealing band clamps at least one end of the flexible sleeve within an annular recess formed on the inside surface of an annular wall portion of one of the end members within an open end of the end member by compressing the sleeve material between the band and wall, and without deforming the band or wall of the end member beyond their elastic limits. In one embodiment, the annular wall of the end member is formed of plastic and is deformed outwardly but maintained within its elastic limits upon insertion of the band within the open end. The end of the sleeve is rolled over the sealing band and then the sleeve end and band are inserted by a press plate into the open end of the end member with the band compressing and sealing the flexible material of the sleeve into the annular recess.  The compressed flexible material expands to seal the sleeve against the end member.  In another embodiment, the press plate expands the plastic material of the end member outwardly upon inserting the band and a rolled end of the flexible sleeve into the annular recess of the annular wall portion whereupon the wall attempting to return to its unstressed state seals the flexible sleeve between the sidewall and band.
Patent CA-1303493-C (CA)
Title: Chromatographic test strip for determining ligands or receptors
Inventor: GORDON JULIAN
IPC: G01N33/569
Filed: 1987-09-23
Granted: 1992-06-16
Abstract: CHROMATOGRAPHIC TEST STRIP FOR DETERMINING             LIGANDS OR RECEPTORS                      A B S T R A C T           The present invention relates to test strips for analysis of analytes such as antigens, antibodies and polynucleotides in a sample by means of a sequential series of reactions.  The strip comprises a length of chromatographic material having capillarity and the capacity for rapid chromatographic solvent transport of non-immobilized reagents and reactive sample components by means of a selected chromatographic solvent.  The strip includes a first end, at which chromatographic solvent transport begins, a second end, at which chroma-tographic solvent transport ends, and a plurality of zones positioned between the first and second ends.  The zones include a first zone impregnated with a first reagent which is mobile in the solvent and capable of reaction with and immobilization against solvent trans-port by the analyte when the analyte is in immobilized form, a second zone for receiving the sample, a third zone, downstream of the first zone, impregnated with a second reagent which is immobilized against solvent transport and which is capable of selective reaction with the analyte so as to render the analyte in an immo-bilized form in the third zone.  The strip also com-prises means for detecting the first reagent at the third zone.  In addition, the first and second zones are spaced sufficiently from said first end to permit con-tact of the first end but not the first and second zones with the chromatographic solvent.          After the sample is received in the second zone and the first end is dipped into the chromato-graphic solvent, the relative mobility of the sample components and the first reagent or the site relation-ship between the second and third zones is such that the analyte is disposed and immobilized against solvent transport at the third zone prior to the first reagent reaching the third zone.  Interfering sample components and non-analyte components of the sample which are reactive with the first reagent are cleared from the third zone by chromatographic solvent transport prior to chromatographic solvent transport of the first reagent to the third zone.
Patent CA-1340312-C (CA)
Inventor: ABRAMS PAUL G
IPC: A61K39/00
Filed: 1987-10-09
Granted: 1999-01-12
Abstract: Methods for improved targeting of antibody, antibody fragments, peptides hormones, steroid hormones and conjugates thereof are disclosed. Enhanced delivery to target cells of antibodies or fragments thereof or other receptor-mediated delivery system, such as peptide, specific for a population of cells of a mammal comprised steps of administering to said mammal an adequate dosage of blocking antibodies or fragments thereof or other receptor-mediated delivery system, such as peptide, and administering to said mammal an effective dosage of said antibodies or fragments thereof or other receptore-mediated delivery system, such as peptide, specific for said population of cells. In the preferred embodiment, the specific antibodies are monoclonal antibodies directed toward tumor-associated antigen in man.
Patent CA-1332880-C (CA)
Title: Plant cultivation method
Inventor: ADACHI TAKASHI
IPC: A01N63/50
Filed: 1987-10-16
Granted: 1994-11-08
Abstract: A method for cultivating plants comprises using a plant  growth  accelerating  oligosaccharide  obtained  by decomposing a polysaccharide produced by microorganisms.
Patent CA-1305056-C (CA)
Title: Method and compositions for reducing neurotoxic injury
Inventor: CHOI DENNIS W
IPC: A61P25/28
Filed: 1987-11-23
Granted: 1992-07-14
Abstract: METHOD AND COMPOSITIONS FOR REDUCING NEUROTOXIC INJURY                 ABSTRACT OF THE DISCLOSURE A method for reducing adverse effects of neurotoxic injury, which comprises administering to a patient susceptible to neurotoxic injury an effective amount, sufficient to reduce the injury, of a compound which is an enantiomer of an analgesic opioid agonist or antagonist, preferably an opiate agonist having a ring system of the following stereochemistry, which shows only carbon and nitrogen atoms in the rings:        The dextrorotatory opiates, dextrorphan and dextro-methorphan, are particularly suitable for use in the method of the invention.
Patent CA-1320667-C (CA)
Title: Device for controlling overheating and scaling in an apparatus for heating a fluid and apparatus equipped with such a device
Inventor: LAURO FERNAND
IPC: F24H9/20
Filed: 1987-12-22
Granted: 1993-07-27
Abstract: DESCRIPTIVE ABSTRACT       Overheating and scaling control device for a fluid heating apparatus.       A piston (46) mobile within a case (28) separates the latter into two compartments (32, 36) respectively connected to the cold water supply pipe (16) and to the hot water discharge pipe (22).  In operation, the pressure in pipe (16) is higher than the pressure in pipe (22) and piston (46) is moved to the left.  On stopping, the pressures are equal in both pipes and spring (40) moves piston (46) to the right.  Cold water is fed into the exchanger tube (20), so that the hot water contained in the latter is discharged into pipe (38) and compartment (36).            Application to domestic water heaters.            Figure 6.     B 9202.3 GP
Patent CA-1303329-C (CA)
Title: Process for preparing pigmentary titanium dioxide
Inventor: HEIKEL HENRIK R
IPC: C09C1/36
Filed: 1988-01-19
Granted: 1992-06-16
Abstract: ABSTRACT        A process for preparing pigmentary titanium dioxide by grinding and mixing a titanium-bearing material, such as sorelslag, with an alkali metal compound, such as sodium hydroxide, and roasting the mixture.  The roasted material is sandmilled followed by washing and filtering.  Thereafter, the solid residue is digested with hydrochloric acid.  After removing the acid by filtration and washing, the solid residue is calcined to provide a titanium dioxide pigment.  By employing the proper process conditions, the process of the invention is capable of producing either nodular or acicular titanium dioxide pigment.   30,371-B
Patent CA-1279659-C (CA)
Title: Process for upgrading light olefins in a turbulent fluidized catalyst bed reactor
Inventor: AVIDAN AMOS A
IPC: C10G3/00
Filed: 1988-01-21
Granted: 1991-01-29
Abstract: PROCESS FOR UPGRADING LIGHT OLEFINS IN A TURBULENT FLUIDIZED CATALYST BED REACTOR                                ABSTRACT          A fluidized bed catalytic process for conversion of light olefinic gas feedstock containing  ethene to produce hydrocarbons rich in C5+ liquids, comprising the steps of maintaining a fluidized bed of zeolite catalyst particles in a turbulent reactor bed at a temperature of about 315 to 510°C, said catalyst having an apparent particle density of about 0.9 to 1.6 g/cm3 and a size range of about 1 to 150 microns, and average catalyst particle size of about 20 to 100 microns containing about 10 to 25 weight percent of fine particles having a particle size less than 32 microns; passing hot feedstock vapor upwardly through the fluidized catalyst bed under turbulent flow conditions; maintaining turbulent fluidized bed conditions through the reactor bed between transition velocity and transport velocity at a superficial fluid velocity of about 0.3 to 2 meters per second; and recovering hydrocarbon product containing a major amount of C5+ hydrocarbons and containing C3-C5 alkanes and alkenes in the ratio of about 0.2:1 to 5:1.
Patent CA-1321900-C (CA)
Title: Method of coated fiber identification in optical transmission network
Inventor: SHIGEMATSU MASAYUKI
IPC: H04B10/03
Filed: 1988-04-15
Granted: 1993-09-07
Abstract: ABSTRACT OF THE DISCLOSURE    A method of identifying an aimed coated fiber in an optical transmission network.   Identification of the aimed coated fiber in the optical transmission network is accomplished  between  its  upstream  and  downstream  ends during  transmission  of  an  optical  signal  without disrupting the capabilities of an optical communication network or  causing deterioration of  the optical  signal being transmitted.
Patent CA-1307605-C (CA)
Inventor: ARPIN RENE
IPC: C08G73/12
Filed: 1988-05-24
Granted: 1992-09-15
Abstract: The present invention relates to novel thermostable polymers containing imide groups. 
<??>More precisely, these polymers are obtained by reaction, at a temperature ranging from 50 DEG C and 300 DEG C, between:
 (a) an N,N'-bismaleimide,
 (b) an acrylate reactant consisting especially of a novolac epoxy (meth)acrylate,
 (c) an imidazole compound, and optionally
 (d) a chlorinated or brominated epoxy resin, the latter being taken by itself or mixed with an unchlorinated or unbrominated epoxy resin. 
<??>These polymers are advantageously employed for the production of laminates.
Patent CA-1328844-C (CA)
Inventor: FUJIMORI NAOJI
IPC: C30B23/02
Filed: 1988-05-27
Granted: 1994-04-26
Abstract: ABSTRACT OF THE DISCLOSURE    A method for preparing a thin film of superconductor on a substrate by sputtering.  A target prepared by an oxide containing Ba, Y and Cu in atomic ratios Cu/Y of 2.5 to 3.5 and Ba/Y of 1.8 to 2.2 is employed to form a superconducting thin film on a substrate at a temperature of 600 to 800°C in an atmosphere having total gas pressure of 1 x 10-2 to 5 x 10-2 Torr. and containing Ar and O2 with an O2 content of 5 to 80 vol.%.  The thin film thus formed is subjected to heat treatment at a temperature of 600 to 930°C for 1 to 30 hours.  The thin film after the heat treatment is cooled at a rate not more than 4°C/min.          The film forming surface of the substrate is prepared by the 1100) surface or the (110) surface of a singlecrystal subdtrate which is lattice-matched with the (100) surface or the (110) surface of a crystal substrate of Y1Ba2Cu3O7-n, where n represents number satisfying 0 ? n < 1.
Patent CA-1302690-C (CA)
Title: Method and apparatus for removing snap rings
Inventor: HULL NORMAN P
IPC: B23P19/04
Filed: 1988-06-01
Granted: 1992-06-09
Abstract: "METHOD AND APPARATUS FOR REMOVING SNAP RINGS"                 ABSTRACT OF THE DISCLOSURE This invention relates to a set of tools for removing lugless snap rings from the internal annular grooves provided therefor in parts containing internal bores, these tools consisting of a pointed tool for making an indentation in the base of the groove between the ends of the ring, a plunger-actuated ball magazine for placing a ball in the indentation thus formed preparatory to driving the ring around in its groove until one of its ends rides up upon the ball to create a gap therebeneath, a clamping tool for holding the ring in its groove against further relative rotation, a wedge for movement into the gap underneath the raised end of the ring, and a wedge-driving subassembly for moving the wedge into the gap to a point where the raised end of the ring is free of the groove and in position to be grasped and removed.  The invention also encompasses the novel method for removing lugless snap rings that includes the steps of making an indentation in the base of the groove between the ends of the ring, inserting a ball in the indentation, rotating the ring within its groove until one of its ends rides up upon the ball creating a gap therebeneath, holding the ring in the groove against further relative rotation, driving a wedge into the gap underneath the ring until the raised end thereof is free of the groove, and pulling upon the end thus freed to remove the ring.
Patent CA-1336274-C (CA)
Title: Closure cap with a seal and method of and apparatus for forming such closure and seal
Inventor: THOMPSON MORTIMER STAFFORD
IPC: B29C55/00
Filed: 1988-06-09
Granted: 1995-07-11
Abstract: A method for forming a linerless cap for a container, the apparatus for forming the linerless cap and the linerless cap.          The cap has a peripheral skirt and a plastic lid with an annular wall adjacent the skirt extending upwardly therefrom, wherein the wall has an inner stretched, softened non-projecting sealing surface which upon engagement compresses and seals.
Patent CA-1312674-C (CA)
Title: Parallel associative memory
Inventor: POTTER TERRY W
IPC: G06K9/64
Filed: 1988-06-14
Granted: 1993-01-12
Abstract: PARALLEL ASSOCIATIVE MEMORY                         ABSTRACT      A parallel associative memory provides a way of recognizing or identifying observed data patterns.  Each of a plurality of memories stores a plurality of recognition patterns.  In response to receipt of a recall pattern to be identified, the recall pattern is contemporaneously compared to the recognition patterns stored in the memories and an exact or best match recognition pattern is selected.  In a preferred embodiment, the memories may store multiple data bases each of which includes patterns having different lengths and different radii of attraction.  The comparison process is controlled by masks which specify respective portions of the patterns which may include the radii of attraction, bits which must identically match, bits which are ignored, bits which are compared in a bit-wise fashion, and bytes which are compared by multiplication.  A correlation is computed and selectively adjusted by the respective radii of attraction.  A specified number of the patterns having the best correlation are identified, subject to selected threshold conditions, and sorted according to their respective correlations.  The parallel nature of the memory lends itself to a hierarchical organization for increased storage capacity and to parallel processing which increases the speed of the identification or recognition process and thereby allows a broad range of applications.  These applications includes fast retrieval of exact or inexact data, diagnosis, image processing and speech recognition.
Patent CA-1303083-C (CA)
Title: Display tray and board game support
Inventor: LIM EDMOND H
IPC: A63F3/00
Filed: 1988-07-19
Granted: 1992-06-09
Abstract: DISPLAY TRAY AND B A D GAME SUPPORT                 ABSTRACT OF THE DISCLOSURE         A display tray and board game support (2) in-cludes four display trays (6) supported at a display angle to the horizontal by tray supports (12).  The display trays each have a number of parallel, offset pockets (62, 64, 66, 68) sized to hold sheet-like playing elements such as play money and decision cards used in the play of the game.  The tray supports are L-shaped members which engage the ends of adjacent display trays to both support and properly position the display trays. The display trays each have a horizontal game board support ledge (24) positioned along the upper edge. The trays and tray supports are sized so that the game board is supported on the support ledges.  An upwardly extending lip (28) at the upper edge of the display tray acts as an outer barrier for the game board (2) resting on the game support ledge.  When the display tray is made of two parts, to facilitate manufacture, the two parts can be connected by pin and socket ele-ments (92, 94) and can include abutment members (100) to resist flexing or bending of the display tray ele-ments relative to one another.
Patent CA-1335997-C (CA)
Title: 1-arylpyrazoles
Inventor: GEHRING REINHOLD
IPC: G03G15/043
Filed: 1988-07-26
Granted: 1995-06-20
Abstract: Pest-combating agents, especially as insecticides, which are 1-arylpyrazoles of the formula R1       S(O)n-R2 N N     N =C                           Ar           (X)m-R4 in which R1 represents hydrogen, alkyl or halogenoalkyl, R2 represents alkyl, halogenoalkyl,optionally substituted aralkyl or optionally substituted aryl, R3 represents hydrogen, alkyl or halogenoalkyl, R4 represents alkyl, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, halogenoalkinyl or in each case optionally substituted aryl or heteroaryl, X represents oxygen, sulphur or an N-alkyl radical, Ar represents in each case optionally substituted phenyl or pyridyl, m represents a number 0 or 1 and n represents a number 0, 1 or 2, have been found.
Patent CA-1324184-C (CA)
Inventor: LANDA BENZION
IPC: G01F11/28
Filed: 1988-08-30
Granted: 1993-11-09
Abstract: ABSTRACT OF THE DISCLOSURE         The  present  invention  is directed  to  liquid electrophotographic copying equipment and more particularly to an apparatus to dispense a liquid charge director into a liquid developer reservoir.  The apparatus comprises a charge director reservoir including a pressure cell arranged below the liquid level of the charge director reservoir.   The pressure cell has a volume to contain a predetermined amount of liquid charge director and is provided with an opening to permit a flow of liquid charge director from the charge director reservoir into the interior of the pressure cell and vice versa.  A tubular conduit extends from the interior of the pressure cell to the liquid developer reservoir to provide fluid communication therebetween.  A controlled pulse of air is directed into the interior of the pressure cell to force substantially all of the liquid charge director within the pressure cell from the pressure cell, with portions of the liquid charge director flowing through each of the opening of the pressure cell and the tubular conduit.  The ratio of the diameter of the opening of the pressure cell to the diameter of the tubular conduit is fixed such that the controlled pulse of air causes a predetermined amount of liquid charge director to flow through the tubular conduit into the liquid developer reservoir and causes the remaining portion of the liquid charge director to flow through the opening of the pressure cell into the charge director reservoir.
Patent CA-1313819-C (CA)
Title: Method for preventing blood coaguli from being formed in the extra-body circuit of dialysis apparatus and composition useful therefor
Inventor: ROSSI RENATO
IPC: A61M1/36
Filed: 1988-10-21
Granted: 1993-02-23
Abstract: "A method for preventing blood coaguli from being formed in the extra-bo-dy circuit of dialysis apparatus and composition useful therefor"            ABSTRACT The introduction of Defibrotide, as a  bolus or by infusion, upstream  of the dialysis membrane of the extra body circuit of apparatus for the  ex-tra-body dialysis prevents coaguli from being formed in the blood stream.
Patent CA-1305717-C (CA)
Title: Thiophosphoric acid ester as a soil pest controlling agent
Inventor: ITOH YOSHIKAZU
IPC: C07F9/165
Filed: 1988-10-25
Granted: 1992-07-28
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention discloses a thiophos-phoric acid ester useful to control pests living in soil and a process for producing said ester.  Said ester has excellent activity in controlling pests living in soil such as southern corn rootworm, cupreous chafer, etc.      The present invention discloses also a method for stabilizing said ester by adding at least one compound selected from the group consisting of polyols, polyalkylene glycols and their esters and ethers.         According to the present invention, there is provided a highly active and stable soil pest control-ling agent and agricultural composition.