baber/WOPTO huggingface dataset:
Patent CA-2002490-A1 (CA)
Inventor: ABU-ISA ISMAT A
IPC: D01F6/78
Filed: 1989-11-08
Abstract: An oriented elastomeric filament spun from a thermoplastic elastomeric material selected from the group consisting of a block copolymer of polybutylene terephthalate and polytetramethylene glycol, a block copolymer of polybutylene terephthalate/polybutylene isophthalate and polyethylene glycol/polypropylene glycol, a block copolymer of polybutylene terephthalate/polyhexene terephthalate and polytetramethylene glycol, and a block copolymer of polyurethane and polytetramethylene glycol, the mole fraction of the polybutylene terephthalate, polybutylene terephthalate/polybutylene isophthalate and polybutylene terephthalate/polyhexene terephthalate in the block copolymers is less than 0.5, the elastomeric filament is further oriented after the spinning by stretching at temperatures between 20°C to 120°C to a draw ratio between 500 to 700 percent elongation such that the oriented filament exhibits a two-stage low tensile modulus and high tensile modulus behavior when tested in accordance with ASTM D-638 tensile test in such a way that the high modulus is at least 2 times greater than the low modulus.
Patent CA-2002935-A1 (CA)
IPC: D21F7/02
Filed: 1989-11-14
Abstract: A web drying unit for use in a paper making machine is provided. The drying unit includes several drying cylinders over which a web to be dried is passed.   A plurality of guide rolls are also provided which support an endless belt for pressing the web to be dried against the drying cylinders.  Some of the drying cylinders are provided with a drive gear.  The drive gears on the drying cylinders are connected to a drive pinion via a gear wheel train.  At least one of the guide rolls is also provided with a drive gear which communicates with the gear wheel train.   The drive pinion is connected to a drive motor via a universal joint shaft.   The drive motor imparts rotation of the drive pinion which in turn rotates the drive gears mounted on the drying cylinders and the guide roll as well as the gear wheels.   A single housing covers the drive pinion, the gear wheels and the drive gears mounted on both the drying cylinders and the guide rolls.
Patent CA-2004987-A1 (CA)
Title: Preparation of a multicoat coating, water-thinnable paint, preparation of crosslinked polymeric microparticles and crosslinked polymeric microparticles
Inventor: WIEDITZ STEFAN
IPC: C08F2/22
Filed: 1989-12-08
Abstract: Abstract The  invention  relates  to  a  process  for  the preparation of a multicoat coating, in which process a pigmented basecoat is used which comprises crosslinked polymeric microparticles obtainable by emulsion polymeri-zation.  In  this  process  the  crosslinked  polymeric microparticles comprised in the basecoat are obtainable by using 0.5 to 2.4% by weight of allyl methacrylate or 1.5 to 8.0% by weight of ethylene glycol di(meth)acrylate or 1.5 to 8.0% by weight of butanediol di(meth)acrylate or 1.5 to 10.0% by weight of hexanediol di(meth)acrylate or 0.5 to 6.0% by weight of divinylbenzene, the weight percentages referring to the total amount of the monomer used.
Patent CA-2005636-A1 (CA)
Inventor: LEWIS JACK A
IPC: A01N63/38
Filed: 1989-12-15
Abstract: ABSTRACT A fungal biocontrol preparation for control or prevention of plant fungal diseases comprises sporulated fungal biomass, a carrier and acid.  The carrier preferably is vermiculite.  The biocontrol preparation is resistant to bacterial proliferation in storage and handling and is effective in controlling damping-off diseases caused by soilborne fungal pathogens.
Patent CA-2008863-A1 (CA)
Title: Method for treating contaminated soil by biological degradation on a sloped surface
Inventor: FU JAW K
IPC: B08B3/08
Filed: 1990-01-30
Abstract: ABSTRACT:          A method is disclosed in which the shape is selected and the soil composition is adjusted on a sloped treatment cell so that downward migration of moisture during the treatment of contaminated soil is minimized.  The need to use a plastic liner is thus avoided.
Patent CA-2011888-A1 (CA)
IPC: B23K1/00
Filed: 1990-03-09
Abstract: A method of soldering without the need for fluxing agents, high temperature, hydrogen, laser excitation or sputtering techniques.  The method uses plasma excitation to remove surface oxides from solder surfaces, thereby eliminating the need for post-soldering cleaning in an accurate and efficient manner, resulting in a higher quality and long term reliability solder joint.  In addition, serious environmental problems caused by cleaning solvents are avoided.
Patent CA-2012337-A1 (CA)
Title: Chip carrier
Inventor: OHTANI KENICHI
IPC: H05K3/36
Filed: 1990-03-16
Abstract: ABSTRACT OF THE DISCLOSURE     A flexible film chip carrier including a plurality of groups of metal wires formed on the surface of an elec-trically insulating flexible film member.  The flexible film member is formed with a plurality of predetermined flexion parts in portions thereof which are in superposition rela-tion with the metal wires, and the flexible film member is partly or wholly reduced in thickness in areas thereof each containing one of the predetermined flexion parts and its surroundings as compared with the remaining portion thereof.          Each of the thin-section parts is in the form of a slit along the predetermined flexion part and the chip carrier is bendable at these thin-section parts.
Patent CA-2012381-A1 (CA)
Inventor: SEIDEN PAUL
IPC: A23L33/20
Filed: 1990-03-16
Abstract: Reduced   calorie   fat   compositions   which   contain combinations  of  substantially  nonabsorbable,  substantially nondigestible polyol  polyesters and certain reduced calorie triglycerides that function as anti-anal  leakage agents and provide textural/taste benefits are disclosed.  These reduced calorie fat  compositions  are useful  in  a variety  of  food applications,  including  frying  oils  for  salted  snacks, chocolate-flavored candy bars and cooking/salad oils.
Patent CA-2015997-A1 (CA)
Inventor: CALDERAZZO FAUSTO
IPC: C07F9/00
Filed: 1990-05-03
Abstract: Vanadium-arenes [V(arene)2] (arena = benzene or mono-, di-, or poly-alkyl-substituted benzene) are obtained, with a high yield, by means of the reduction of a vanadium-arene iodide with zinc, manganese or iron in metal form, or with cobalt di-(cyclopentadienyl).      Vanadium-arenes are useful in the preparation of catalyst components active in ethylene polymerization, or in the copolymerization of ethylene in an alpha-olefin.
Patent CA-2016574-A1 (CA)
Title: Thiazepine derivatives
Inventor: HEMMI KEIJI
IPC: A61P7/00
Filed: 1990-05-11
Abstract: ABSTRACT     There are described compounds of the formula:                              wherein R1 is ar(lower)alkyl which may have suitable substituent(s), R2 is hydrogen, lower alkyl which may have suitable substituent(s), or a group of the formula :            (in which A is lower alkylene and X is halogen), n is 0, 1 or 2 and Y is -CH2-CH2 or    , and a pharmaceutically acceptable salt thereof.  A pro-cess for preparing these compounds, pharmaceutical compo-sitions containing same, the use thereof as an antagonist of PAF and a method for treating or preventing PAF-mediated diseases are also disclosed.  The compounds and their salts are useful as a medicine for preventing and treating diseases such as allergic manifestations, such as asthma, thrombosis, shock, such as anaphylatic shock, anesthetic shock, cardiogenic shock, endotoxin shock, disseminated intravascular coagulation, nephropathy, nephritis, autoimmune diseases such as rhumatism, ulcers such as gastric ulcers, ischemia, cardiac infarction, septicemia and the like.  They are also useful as immu-nosuppressant in transplantation.
Patent CA-2019593-A1 (CA)
Inventor: BURROWAY GARY L
IPC: C08F212/04
Filed: 1990-06-22
Abstract: This invention relates to the synthesis of a latex which can be formulated into coatings having improved water resistance for both moisture vapor transmission and water spotting. Coatings which are formulated with the latex of this invention axe particularly useful for coating metal substrates because they provide excellent rust and corrosion resistance. The subject invention more specifically discloses a process for producing a neutralized latex that is useful in the manufacture of water reducible coatings which comprises: (1) free radical aqueous emulsion polymerizing at a pH of less than about 3.5 a monomer mixture which comprises, based on 100 weight percent monomers: (a) from about 45 to about 85 weight percent vinyl aromatic monomers, (b) from about 15 to about 50 weight percent of at least one alkyl acrylate monomer, and (c) from about 1 to about 6 weight percent of at least one unsaturated carbonyl compound; in the presence of about 0.5 to 4.0 phm at least one phosphate ester surfactant and in the presence of about 0.5 to 4.0 phm of at least one water insoluble nonionic surface active agent to produce a latex; and (2) neutralizing the latex with ammonia to a pH which is within the range of about 7 to about 10.5 to produce the neutralized latex.
Patent CA-2021337-A1 (CA)
IPC: C07D498/04
Filed: 1990-07-17
Abstract: A process for the optical resolution of a pyranobenzoxadiazole compound represented by the formula [(+/-)I]: <CHEM> which comprises reacting the compound [(+/-)I] with an optically active carboxylic acid represented by the formula [II]: <CHEM> and separating the diastereomeric salt thus formed is disclosed.
Patent CA-2022932-A1 (CA)
Title: Fabrication of lightweight ceramic mirrors by means of a chemical vapor deposition process
Inventor: GOELA JITENDRA S
IPC: C23C16/01
Filed: 1990-08-08
Abstract: ABSTRACT OF THE DISCLOSURE    A process to fabricate lightweight ceramic mirrors, and in particular, silicon/silicon carbide mirrors, involves three chemical vapor deposition steps:  one to produce the mirror faceplate, the second to form the lightweight backstructure which is deposited integral to the faceplate, and the third and final step which results in the deposition of a layer of optical grade material, for example, silicon, onto the front surface of the faceplate.  The mirror figure and finish are fabricated into this latter material.
Patent CA-2026351-A1 (CA)
Inventor: ABIRU HISANORI
IPC: F16F7/10
Filed: 1990-09-27
Abstract: Disclosed is a dynamic damper which is to absorb building vibrations in any horizontal directions, not restric-ted to one direction.  For example, it comprises an oscil-lating body which is held to move horizontally, a plurality of ball screws which are arranged perpendicularly to each other with a height difference among them and which have a nut por-tion on the side of the oscillating body and a screw shaft en-gaging with said nut portion, and motors which reciprocate the oscillating body according to the period of vibration of the building by turning the ball screws.  Also, a method is dis-closed for detecting malfunction of a dynamic damper which utilizes the correlation Rx y between the acceleration of velocity or displacement of a building.
Patent CA-2026396-A1 (CA)
Inventor: ALAMEDDINE BASSEM R
IPC: E21B33/138
Filed: 1990-09-27
Abstract: A process for preventing steam entry into a bottom water zone of a formation.  Perforations are made in a well which perforations communicate with the lowest level of said bottom water zone.  Air is injected into the lowest level of said zone via said well which initiates low temperature oxidizing thereby increasing the viscosity of said oil and making a heavy oil.  When a desired viscosity is obtained, air injection is ceased.  Said well is recompleted and perforations are placed in said well which causes it to communicate with a higher level oil saturated zone.  Steam is injected into said higher level since the lowest level of the bottom water zone is closed because of the high viscosity oxidized oil.  Thus, steam injection causes oil to be removed from the higher level of said formation.
Patent CA-2034108-A1 (CA)
Title: Perimeter seal for split enclosure drying hoods
Inventor: ZAGAR STEVEN J
IPC: F26B19/00
Filed: 1991-01-14
Abstract: ABSTRACT          A seal for a dryer having split enclosure drying hoods is disclosed.  The hoods are retractable with respect to each other at at least one separation joint.  A gasket capable of conforming to the contour of the joint is positioned in the joint.  Preferably the gasket is of an inflatable type.  The portions of the upper and lower hoods which terminate at the separation joint comprise a bellows, which provide a non-linear path for heat conduction and in which the gasket is positioned.
Patent CA-2038213-A1 (CA)
Title: Transformer differential relay
Inventor: WILKINSON STANLEY B
IPC: H02H7/045
Filed: 1991-03-14
Abstract: The reliability of transformer differential relays is enhanced by providing a method and apparatus which enable improved discrimination between transformer current differentials due to transformer inrush current and current differentials due the occurrence of an internal fault. This improvement in discrimination is provided by generating a first signal representative of currents flowing in at least two windings of the transformer, a second signal representative of a positive portion of the first signal, and a third signal representative of a negative portions of the first signal, A first output signal is generated when the magnitude of the second signal exceeds a first predetermined value, and a second output signal is generated when the magnitude of the third signal exceeds a second predetermined value. A trip signal is generated upon coincidence of the first and second output signals. Additional operate energy is generated when the magnitude of the absolute value of a vector sum operate signal, representative of the vector sum of currents flowing in at least two windings of the transformer, exceeds a first predetermined magnitude. The additional operate energy is terminated and. additional restraint energy is generated when the magnitude of a percentage restraint signal, representative of the absolute values of currents flowing in a least two windings of the transformer, exceeds a second predetermined magnitude for a predetermined period of time.
Patent CA-2041355-A1 (CA)
Inventor: GEORGE ALBERT L JR
IPC: C12Q1/68
Filed: 1991-04-26
Abstract: ABSTRACT OF THE DISCLOSURE           A method, reagent and kit for the determination of the presence of target nucleotide sequences by restriction amplification are disclosed. In the process to detect nucleic acid sequences a target molecule containing a specific restriction site is hybridized with a labeled probe containing a sequence homologous to at least 28 bases of the target molecule. The probe is cleaved with a restriction enzyme that releases the probe for detection if the probe hybridizes to the specific target.  A second oligonucleotide is present in the reaction that is homologous to the 3 prime end of the probe molecule and also contains 5 prime base or bases that will reconstitute the restriction enzyme site on the target.  Thus, the cleaved probe constantly regenerates and is highly detectable if the target sequence is present in the assay.
Patent CA-2041707-A1 (CA)
Title: Low temperature starting system for internal combustion engines
Inventor: MALLOFRE SALVALDOR GALI
IPC: F02N9/04
Filed: 1991-05-02
Abstract: ABSTRACT            LOW TEMPERATURE STARTING SYSTEM FOR INTERNAL COMBUSTION                        ENGINES           The system is based on incorporating a start preturbine (80) capable of injecting pressurised air in the inlet manifold (10) of the motor (2). The preturbine (80) is driven by air supplied by a storage reservoir (68) and starts operating after an air starter motor (46) has been actuated. Operation is continued until, as a result of the ignition of the fuel, the engine (2) attains a high speed, after which the starter motor (46) and the preturbine (80) are disengaged, whereby the engine decelerates. When the engine reaches a preset low speed, the  preturbine (80) is reengaged and stages of operation of the preturbine (80) coinciding with engine acceleration alternate with inoperative stages coinciding with engine deceleration until an engine speed above the low speed is maintained. A electronic sequencer (90) controls the successive operations.            Figure 1.
Patent CA-2042218-A1 (CA)
Title: Composite airfoil with increased shear capability
Inventor: SCHILLING JAN C
IPC: B29C70/08
Filed: 1991-05-09
Abstract: ABSTRACT OF THE DISCLOSURE     An airfoil blade and method of manufacturing same having greater tolerance to impact damage.  The blade comprises a plurality of layers of composite laminates sandwiching at least one layer of a less than rigid bonding agent.  The resilient bonding agent allows for relative movement between adjacent layers allowing loading of the laminate to its full strain potential and thereby reducing the shock loading normally transferred to the adjacent laminates by a hard-setting epoxy bonding material.  In one form, the resilient material is selectively positioned between layers of laminates at different predetermined locations of the blade.  The blade may be stitched to provide additional layer-to-layer support using synthetic cording such as an aeromatic polyamide.
Patent CA-2043774-A1 (CA)
Title: Data retrieval system, display apparatus and method of recording and displaying
Inventor: POULTER GRAHAM G
IPC: H04N5/92
Filed: 1991-06-03
Abstract: ABSTRACT DATA RETRIEVAL SYSTEM, DISPLAY APPARATUS AND      METHOD OF RECORDING AND DISPLAYING An  interactive  data  retrieval system  based  on  a personal computer is provided which comprises a database and a CD-ROM which is arranged to select and display visual images of product literature of interest to a user such as an architect for example.  The database contains details of the  illustrated products and the manufacturers of  the products.   A modem is provided to enable the user to communicate  with  the  manufacturers  of  the  displayed products  and to receive updating  information which  is stored in the database.  The display of a selected image may be aborted at any time by the user, and in order to facilitate  comprehension  of  the  image  as  quickly  as possible whilst maximising the ultimate resolution of the image, the resolution of each displayed image is gradually increased during the display process.  This is achieved by initially displaying the image in the form of blocks of identical pixels.  The true image pixels at each position in the blocks are then substituted so as to enhance the resolution of the image.  An arrangement for displaying an image which has been scanned at a spatial resolution which is different from the nominal spatial resolution of the monitor is also described.
Patent CA-2045437-A1 (CA)
Title: Storage tank for water heaters and the like with collector outlet dip tube
Inventor: KALES HEMANT D
IPC: F24H9/12
Filed: 1991-06-25
Abstract: TITLE OF THE INVENTION            STORAGE TANK FOR WATER HEATERS AND THE LIKE WITH COLLECTOR OUTLET DIP TUBE               ABSTRACT OF THE DISCLOSURE         A storage tank having a vertical, cylindrical tank, a fluid inlet, and a fluid outlet, includes a collector outlet dip tube for collecting hot fluid evenly across a horizontal cross section of the tank and thereby foil convection currents that cause mixing of hot and cold fluid so that more hot fluid is recovered at the outlet over time.  A dispersing inlet dip tube may be also employed to introduce cold fluid evenly.  The tank may comprise a hot water heater where the water stored in the tank is heated within the tank by means disposed internally or externally of the internal storage chamber.  Alternately, the water may be heated externally of the tank and stored within the tank.
Patent CA-2046904-A1 (CA)
Title: Cd4 specific recombinant antibody
Inventor: JOLLIFFE LINDA K
IPC: C12Q/
Filed: 1990-12-21
Abstract: There are disclosed: a CDR-grafted antibody having at least one chain wherein the framework regions are predominantly derived from a first antibody (acceptor) and at least one CDR is derived from a second antibody (donor), the CDR-grafted antib-ody being capable of binding to the CD4 antigen; processes for its production;  nucleotide sequences for use in its production; compositions containing it; and its use in therapy.
Patent CA-2049081-A1 (CA)
IPC: F25D23/00
Filed: 1991-08-13
Abstract: To improve the cooling capacity, the compressor (1) is arranged in a niche (3) of the device housing and the liquefier section (2), which is designed as a tube coil, is arranged in a shaft (4) connected to the niche (3). One shaft wall is formed by the rear wall (41) of the housing. The tube coil (2) is arranged inside the shaft (4), which acts as a convection shaft, at an angle upwards in the direction of the rear wall (4) of the device housing. 
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Patent CA-2050169-A1 (CA)
Title: Reverse osmosis membranes of polyamideurethane
Inventor: ARTHUR SAMUEL D
IPC: B01D69/12
Filed: 1991-08-28
Abstract: The present invention is directed to an improved reverse osmosis membrane that shows surprisingly improved solute rejection and permeation properties. The membrane includes a separating layer of a polyamideurethane formed in situ by reaction of a haloformyloxy-substituted acyl halide with a diamine-treated substrate.
Patent CA-2052440-A1 (CA)
Title: Ternary polymer mixtures
Inventor: FISCHER JENS-DIETER
IPC: C08L69/00
Filed: 1991-09-26
Abstract: ABSTRACT OF THE DISCLOSURE    The invention relates to ternary polymer alloys comprised of thermoplastic polymers which alloys are comprised of the following components:    A)  0.1-99.9 wt.% of a polyester-polycarbonate mixture comprised of: a.1) 0.1-99.9 parts by weight (pbw) of a polyester, and a.2) 99.9-0.1 pbw of a polycarbonate; and B)  99.9-0.1 wt.% of a poly(meth)acrylate ester PA containing 20-100 pbw of units of at least one monomer of formula I                                           (I) where R1 represents hydrogen or methyl, R2 represents a C1-6 alkyl group or a group -(CH2)n-QR3, where n represents zero or a number in the range 2-6, and Q represents oxygen or a group -NR4, and R3 and R4 mutually independently represent hydrogen or a C1-4 alkyl group; and A represents a C1-4 alkylidene group or a group -(CH2)m-O-, where m is a number from 2 to 6, and q is zero or 1.
Patent CA-2057212-A1 (CA)
Title: Built-up aquarium
Inventor: HSU KE-YO
IPC: A01K63/04
Filed: 1991-12-06
Abstract: ABSTRACT OF THE DISCLOSURE          An aquarium comprising a housing for  keeping live  water  animals  and water plants,  a  filter  tank fastened  inside said housing at one side,  said  filter tank  comprising  a dirty water  chamber  for  receiving water  from  said housing, a filtration chamber  at  the middle  separated  from said dirty water chamber  and  a clean  water  chamber at an opposite end  for  receiving water from said filtration chamber, and a pipe  assembly controlled to guide water from said dirty water  chamber to said filtration chamber  or to discharge water out of said filtration chamber.    Said filter tank has a water pump for pumping water from said clean water chamber  to said  housing  permitting the water  contained  in  said housing   to  be  induced  to  circulate  through   said filtration chamber for filtration through a filter bed.
Patent CA-2060515-A1 (CA)
Title: Process for manufacturing aspartame from a diketopiperazine and novel intermediates and derivatives therefor
Inventor: HILL JOHN B
IPC: C07K5/075
Filed: 1991-03-12
Abstract: SUBSTITUTE                       REMPLACEMENT               SECTION is not Present Cette Section est Absente