baber/WOPTO huggingface dataset:
Patent CA-2001311-A1 (CA)
Title: Thermal properties of a polyalkyleneterephthalate without significant loss of physical and low temperature properties
Inventor: LEUTKENS MARVIN L JR
IPC: C08L67/03
Filed: 1989-10-24
Abstract: Abstract of the Invention Polyalkyleneterephthalate blends containing about 3 and about 30 weight percent of a melt-processable polyary-late liquid crystal polymer, preferably containing an impact modifier, are shown to have significantly enhanced thermal properties while maintaining substantially the mechanical and low temperature properties of the polyalky-leneterephthalate.  The blends are suitable for making molded objects such as permanent ovenware capable of repeated use in both conventional thermal and microwave ovens.  A significant use of the polyethyleneterephthalate blends is in the thermoformable, CPET, dual-ovenable tray market.
Patent CA-2002141-A1 (CA)
Title: Least substantially pore-free polyurethane molding compounds
Inventor: HESS BERNHARD
IPC: C08G18/66
Filed: 1989-11-02
Abstract: Mo3258 LeA 26,423 AT LEAST SUBSTANTIALLY PORE-FREE  POLYURETHANE MOLDING COMPOUNDS           ABSTRACT OF THE DISCLOSURE The present invention directed to an at least substantially pore-free polyurethane prepared by reacting at least one polyisocyanate and a component containing a partial carboxylic acid ester which is the reaction product of a carboxylic acid and an at least trihydric alcohol in quantities such that at least one of the hydroxyl groups of said alcohol is not esterified.     Mo3258
Patent CA-2003366-A1 (CA)
Inventor: RIEHL TILFORD F
IPC: A24D1/22
Filed: 1989-11-20
Abstract: A smoking article includes a tobacco column with a gas impermeable tube concentrically located in the tobacco column.          The tube is filled with a granular material which is coated with an aerosolizing material.  A first chamber is located at one end of the tobacco column with its inlet end in gas flow communication only with the tube, a tobacco rod is located with its inlet end at the discharge end of the first channel, and a second chamber is located in gas flow communication with the discharge end of the tobacco rod.  The discharge end of the second chamber is open for discharging gas into the smoker's mouth.
Patent CA-2004456-A1 (CA)
Inventor: ATADAN ERDEM M
IPC: C07B61/00
Filed: 1989-12-01
Abstract: A process for the preparation of hexamethylene imine from hexamethylene diamine by the vapor phase reaction in the presence of water, hydrogen, and a palladium catalyst.
Patent CA-2005430-A1 (CA)
Title: Method for pressure welding of parts heated with an arc moving in magnetic field
Inventor: KUCHUK-YATSENKO SERGEI I
IPC: B23K9/09
Filed: 1989-12-13
Abstract: METHOD FOR PRESSURE WELDING OF PARTS WITH HEATING WITH AN ARC MOVING IN MAGNETIC FIELD                         Abstract A method for pressure welding of parts with heat-ing with an arc moving in magnetic field in which the parts are placed coaxially with each other with a working gap therebetween, magnetic field is created in the gap and electric arc is fired to heat the ends of the parts. A d-c component of voltage of the arc is measured, and when this component reaches its mini-mum value corresponding to a temperature of the ends of the parts at which plastic deformation of the mate-rial of the parts can occur, a pulsed increase in the arc current is carried out, with subsequent upsetting of the parts.
Patent CA-2010167-A1 (CA)
Title: Consolidated proppant pack for producing formations
Inventor: MANA MICHAEL L
IPC: C09K8/80
Filed: 1990-02-15
Abstract: ABSTRACT A porous, consolidated proppant pack which can be formed within the fractures of a producing formation and/or within the wellbore of an earthen well adjacent a producing formation wherein both particles of a dissolvable material (e.g., calcium carbonate) and proppants (e.g., sand) that have been coated with an unset consolidating material (e.g., a thermosetting resin) are mixed into a carrier liquid, (e.g., diesel) and then flowed down the well and into or adjacent the producing formation where the consolidating material on the proppants sets and consolidates to form the porous, consolidated proppant pack.  The dissolvable material is then dissolved out of the pack (e.g., by an acid overflush) to increase the porosity and hence, the permeability of the pack.
Patent CA-2010353-A1 (CA)
Title: Pharmaceutically active compounds
Inventor: BAXTER ANDREW J G
IPC: C07C323/60
Filed: 1990-02-19
Abstract: Pharmaceutically active compounds Abstract There are described compounds of formula I, processes for their preparation and pharmaceutical formulations containing them, in which R2 is a group of formula II, -NRxCHRyCOOH                         II in which Rx and Ry are each alkyl optionally substituted by phenyl; phenylalkyl C7 to 12, phenyl, phenyloxyalkyl, N-alkyl, O-alkyl, or together Rx and Ry may form a heterocyclic group optionally substituted by alkyl, phenyl; phenylalkyl C7 to 12, phenyl, phenyloxyalkyl, N-alkyl, O-alkyl, or one of Rx and Ry may be hydrogen, provided that one of Rx and Ry, the heterocyclic group formed by Rx and Ry or the optional substituents is substituted by one or two groups  -COOR9 R9 is phenyl, -(CH2)xCONR14R15, -(CH2)yCOOR16 or alkyl optionally substituted by phenyl;     R14, R15, R16, x and y, are as described in the specification, and pharmaceutically acceptable salts thereof.
Patent CA-2015454-A1 (CA)
Inventor: BUSCALL RICHARD
IPC: C01F11/22
Filed: 1990-04-25
Abstract: Abstract Inorganic Particles A method for the preparation of colloidally stable particles of inorganic solid at high concentration which method comprises at least the step of precipitating from an aqueous medium the particles of the inorganic solid in the presence of a copolymer which comprises repeating units derived from: Component A: a hydrophilic oligomer or polymer bearing an addition-polymerisable olefinically-unsaturated group; Component B: an olefinically-unsaturated compound capable of copolymerising with Component A and bearing a mineral acid group or a dicarboxylic acid group, or a carboxylic acid and a further group capable of hydrogen-bonding.
Patent CA-2016233-A1 (CA)
IPC: F21V19/00
Filed: 1990-05-08
Abstract: A lamp socket mounting bracket which con-tains a pair of mounting clamps and is mounted within a reflector.  The mounting clamps have reflector ends and socket ends which each have feet.  The mounting clamps have curved portions to encompass a lamp socket which forms a fulcrum within the lamp socket mounting bracket.  A clamp adjusting means is used at the socket ends of the mounting clamps to tighten the mounting clamps around the lamp socket, help make a substantial contact between the mounting clamps and the lamp socket, and create, along with the fulcrum, a reverse scissors action within the lamp socket mounting bracket.
Patent CA-2016728-A1 (CA)
Title: Information carrier and process for the production thereof
Inventor: MANSER ALOYSIUS H
IPC: B42D25/00
Filed: 1990-05-14
Abstract: K-17582/=     Information carrier and process for the Production thereof Abstract of the Disclosure There are disclosed laminated structures which are bonded with a UV-/VIS-curablecomposition and which consist of a main foil A) which is substantially impervious to light, at least one interlayer B) which is substantially impervious to light in the absence of the adhesive and which carries on the side with its back to the main foil information in the form of a colour pattern, and of a substantially light-permeable covering foil C). The laminated structures can be used as identity cards.
Patent CA-2017022-A1 (CA)
Title: Belt track for track-laying vehicles and snowmobiles
Inventor: WIESNER HAGEN H
IPC: B62D55/205
Filed: 1990-05-17
Abstract: A belt track for track-laying vehicles and snow mobiles has replaceable belt segments which are resistand to a tensile force, while being of low weight. The portion of the bands passing around the pin which is in the form of a transverse member lies in the static, that is to say undisturbed region of the segment.
Patent CA-2017346-A1 (CA)
Title: Endothelial cell procurement and deposition kit
Inventor: WILLIAMS STUART K
IPC: A61L27/50
Filed: 1990-05-23
Abstract: ENDOTHELIAL CELL PROCUREMENT AND DEPOSITION KIT                   A B S T R A C T         The invention is an endothelial cell procurement and deposition kit for collecting fat from a patient, processing said fat to produce an endothelial cell deposition product, and depositing said product on the surface of a graft, all under sterile conditions established and maintained within the components of said kit comprised of: fat collection means for collecting subcutaneous fat from a patient; digestion means connectable to said fat collection means to maintain sterility during reception of said fat and for retaining said fat under sterile conditions during rinsing and digestion to produce a digested product; endothelial cell isolation means connectable to said digestion means for maintaining sterile conditions during reception of said digested product and for separating and isolating microvessel endothelial cells from said digested product to produce an endothelial cell product; cell deposition means connectable to said isolation means for maintaining sterile conditions during reception of said endothelial cell product and for depositing said cells on the surface of a graft to be implanted in a patient and facilitating implantation of said endothelial graft into a patient.
Patent CA-2017394-A1 (CA)
Inventor: OKURA DAVID K
IPC: H04L7/033
Filed: 1990-05-23
Abstract: A method and apparatus are provided for receiving parallel digital data signals and an aligned frame pulse.  The frame pulse occurs at a regular interval which is a multiple of the data clock period.  A multiple clock sampling scheme includes sampling the frame pulse using a plurality of phase-shifted clock signals, selecting several clock signals which are centered on the frame pulse and therefore the data.  Then, sampling the data using the selected clocks, taking a majority value of the multiple samples and aligning the sampled data with a locally generated frame pulse using an elastic store.
Patent CA-2017729-A1 (CA)
Title: Fiber optic splice assembly
Inventor: BARLOW ROBERT W
IPC: G02B6/38
Filed: 1990-05-29
Abstract: ABSTRACT            A fiber optic splicing system for accomodating optical fibers having similar or distinctly different buffered coating sizes. The system comprises a first pair of housing halves forming a body with opposed ends adapted to receive two optical fiber of a first similar size; a second pair of housing halves forming a body with opposed ends adapted to receive two optical fibers of a second similar size,  different from said first size;  and a third pair of housing halves  forming  a  body having  one  end formed to receive one of said first size of optical fiber and another end  formed to  receive one of  said  second,  different size of optical fiber.  Holding means in the form of slidable end caps cooperate with the ends of the housing to apply radial compression thereto to maintain the fibers in position without the      use     of  crimps    or      adhesives.
Patent CA-2018002-A1 (CA)
Title: Curable silicone caulk compositions
Inventor: STEIN JUDITH
IPC: C08L83/07
Filed: 1990-05-31
Abstract: CURABLE SILICONE CAULK COMPOSITIONS                     Abstract of the Disclosure Curable silicone caulk compositions are provided using a nonionically stabilized silanol-terminated polydi-organosiloxane, water, a silane cross-linker, a tin condensa-tion catalyst, and calcium carbonate.
Patent CA-2022098-A1 (CA)
Title: Laminated organic photosensitive material
Inventor: KANZAKI TOSHIAKI
IPC: G03G5/047
Filed: 1990-07-27
Abstract: ABSTRACT       A laminated organic photosensitive material which comprises an electroconductive support, a charge producing layer and a charge transporting layer formed thereon, wherein the charge transporting layer contains a mixture of a bistryl compound represented by the formula   in an amount of 65-90 % by weight based on the mixture as a first charge transporting substance and a further compound in an amount of 35-10 % by weight based on the mixture as a second charge transporting substance, and the mixture has a glass transition temperature of not more than 45°C.
Patent CA-2022200-A1 (CA)
Title: Hercules free resistance leg extension machine
Inventor: BAKER CHRISTOPHER J
IPC: A63B21/002
Filed: 1990-07-30
Abstract: ABSTRACT   A machine for the purpose of physical exercise must afford a resistance in order to develop muscular size and strength within specified muscle structures. In this invention such resistance can be applied from the natural resistance of ones own muscular ability by virtue of the unique design and purpose of the machine. The original chain drive mechanism allows the users' application of force from one leg to be resisted by the same muscle structures of the other leg. As one leg moves in muscular contraction the other moves opposite in extension of muscular structures. The machine is constructed with a sturdy base and seat to comfortably place the user in the best position for the application of exercising force.
Patent CA-2022482-A1 (CA)
Inventor: BETTS DAVID R
IPC: F16B5/00
Filed: 1990-08-01
Abstract: ABSTRACT OF THE DISCLOSURE       The invention concerns quick release fastening means particularly for coupling furniture parts. In a preferred form fastening means for releasably securing together first and second parts comprise a first substantially planar member defining a slot having a relatively wide portion and a relatively narrow portion and defining an aperture, the narrow portion having an effective centre spaced from the effective centre of the wide portion by a predetermined distance. A second member includes a stud having a head and a body, the head being dimensioned to pass through said wide portion but not through the narrow portion of the slot and the body being dimensioned to be movable from the wide portion along the narrow portion, a peg dimensioned to be received in the aperture, and a strip of springy material on which the peg is mounted and effectively connected to the stud, whereby the peg can move away from the plane of the first member. The arrangement is such that when the head is inserted through the wide portion of the slot, the peg is displaced rearwardly by contact with the first member so as to bend the strip, and when the stud is displaced transversely through said distance with the body traversing the narrow portion of the slot the peg will enter the aperture under the bias of the strip to prevent reverse transverse movement until the peg is depressed.
Patent CA-2028581-A1 (CA)
Inventor: BOMBARDELLI EZIO
IPC: A61P3/00
Filed: 1990-10-25
Abstract: Pharmaceutical and cosmetic compositions for the treatment of superfluous fat deposits contain (a) vegetable active principles having adenylate cyclase agonistic activity or (b) vegetable active principles having antiphosphodiesterase activity or a combination of the two kinds of active principles (a) and (b).
Patent CA-2029951-A1 (CA)
Inventor: NAKAKI YOSHIYUKI
IPC: G11B11/10
Filed: 1990-11-14
Abstract: A magneto-optic recording medium comprises: a 1st layer having a Curie temp. Tc1, having a perpendicular magnetic anisotropy, a 2nd layer, being a transition metal sublattice dominant film, having a Curie temp. Tc2, provided on the 1st layer and exchange coupled with the 1st layer, a 3rd layer having a Curie temp. Tc3, provided on the 2nd layer and exchange coupled with the 2nd layer, and a 4th layer having a Curie temp. Tc4, provided on the 3rd layer and exchange coupled with the 3rd layer, wherein Tc2 > Tc1, Tc4 > Tc1, Tc2 > Tc3, and Tc4 > Tc3.  The magnetization of the 1st layer is not reversed due to the magnetization of the 2nd layer at room temp.; the directions of the sublattice magnetization of the 2nd layer, the 3rd layer and the 4th layer are parallel with each other at room temp. after recording operation; and there is a temp. between room temp. and the lower one of the Curie temp. of the 1st layer and Tc3 at which the relationship: Hc2 < Hw2 is satisfied.          Here, Hc2 and Hw2 respectively represent the coercivity of the 2nd layer, and the exchange coupling which the 2nd layer receives from the 1st and 3rd layers.  Hc2 and Hw2 are values obtained when the four layers are stacked with each other and the sublattice magnetizations of the 1st and 3rd layers are antiparallel with each other.
Patent CA-2030472-A1 (CA)
Inventor: PLATZEK JOHANNES
IPC: C09K3/00
Filed: 1990-11-21
Abstract: Cascade polymers, containing complex-forming ligands, optionally at least five ions of an element of atomic numbers 21-29, 39, 42, 44 or 57-83, as well as, if desired, cations of inorganic and/or organic bases, amino acids or amino acid amides, are valuable complexing compounds and complexes for diagnostics and therapy.
Patent CA-2030880-A1 (CA)
Title: Dental prophy angle
Inventor: FALCON CHARLES J
IPC: A61C3/00
Filed: 1990-11-26
Abstract: A prophy angle having a single snap-in retention mechanism that is integral with the housing for re-taining the prophy cup rotating member in permanent field position and providing good smooth rotation per-formance and a detent drive shaft snap-in retention mechanism that locks in position when the dental hand-piece is connected.
Patent CA-2032107-A1 (CA)
Title: Thermoplastic compositions based on a vinyl aromatic copolymer and a polyamide resin
Inventor: FASULO GIAN C
IPC: C08L101/00
Filed: 1990-12-12
Abstract: "THERMOPLASTIC COMPOSITIONS BASED ON A VINYL  AROMATIC COPOLYMER AND A POLYAMIDE RESIN"     A B S T R A C T Thermoplastic compositions having improved mecha= nical characteristics, stiffness and thermoresistance com= prising a blend of: (A)  an impact resistant vinyl aromatic copolymer comprising a vinyl aromatic monomer and an ethylenically unsatura= ted nitrile wherein the monomers are polymerized in the presence of and grafted on a rubber substrate having a glass transition temperature (Tg) lower than 0°C; (B)  a polyamide resin; (C)  a compatibilizing polymer comprising at least a copoly=      merized monomer containing a functional group reactive with the polyamide resin, said monomer being present in an amount substantially equal to the ethylenically unsa= turated nitrile of the vinyl aromatic monomer-ethyleni=     cally unsaturated nitrile copolymer.
Patent CA-2032298-A1 (CA)
Title: Venetian blind with adjustable width
Inventor: NIEN MING
IPC: E06B9/26
Filed: 1990-12-13
Abstract: ABSTRACT     A venetian blind with adjustable width including a top frame,  a bottom frame, multiple slats,  a lifting/lowering pull cord, a slat rotating device  and  a  rotating  rod, wherein  the top frame includes a main rail and a  left  and right rails which are extensible and retractable  relatively to the main rail for adjusting the length of the top  frame, and the slat rotating device is secured at two ends of  the main rail, while the bottom frame includes a main rod and  a left   and  right  rods  which  are  also extensible   and retractable  relatively  to the main rod for  adjusting  the length of the bottom frame corresponding to that of the  top frame  so  that  the  width of the  blind  can  be  adjusted according to requirements.
Patent CA-2032457-A1 (CA)
Title: Voltage follower circuit for use in power level control circuits
Inventor: ROTH ROGER R
IPC: G05F5/00
Filed: 1990-12-17
Abstract: ABSTRACT OF THE DISCLOSURE     A power control system includes a voltage follower circuit which may be interposed between a load power control circuit which adjusts the level of power applied to a load, and a variable impedance whose internal impedance prescribes the desired level of power.  A feedback voltage from the output of the voltage follower circuit is compared with a corresponding voltage across the variable impedance and the difference between them is used to drive the output voltage of the voltage follower circuit toward the input voltage.  The voltage follower circuit permit  control by a single variable impedance of many more load power control circuits than a single variable impedance can normally handle, and without appreciably affecting the power level as a function of the impedance level.  This circuit is particularly useful in a system for controlling the level of light received from fluorescent light fixtures controlled by electronic ballast
Patent CA-2032664-A1 (CA)
Title: Anionic polymerization catalyst compositions
Inventor: VAN DER HUIZEN ADRIAAN A
IPC: C08F36/06
Filed: 1990-12-19
Abstract: A B S T R A C T           ANIONIC POLYMERIZATION CATALYST COMPOSITIONS    Provided are anionic polymerization catalyst compositions comprising: a)   an organolithium compound b)   a barium, strontium or calcium alcoholate or thiolate, and c)   a trialkylaluminium compound having at least 13 carbon atoms per molecule, a polymerization process using these catalyst compositions, and polymers obtained by such a process.
Patent CA-2033476-A1 (CA)
Title: Fluid recirculation system for an automatic washer
Inventor: CUR NIHAT O
IPC: D06F33/37
Filed: 1990-12-31
Abstract: An automatic washer having an improved recirculation system wherein wash liquid is collected in a sump and recirculated onto the clothes load in a first recirculation loop and wash liquid is recirculated from a mixing tank through conduits and a pump back to the mixing tank to effect thorough mixing of the wash liquid.     The mixing tank can be selectively connected to the first recirculation loop to direct selected amounts of wash fluid into the wash load, and a sensor is provided to sense the amount of wash fluid in the sump to assure that a sufficient amount of wash fluid is being recirculated into the clothes load.
Patent CA-2033865-A1 (CA)
Inventor: THEURER JOSEF
IPC: E01B33/00
Filed: 1991-01-09
Abstract: A continuously advancing track working machine for compacting ballast comprises a self-propelled machine frame supported by undercarriages an the track for mobility in an operating direction and a track stabilization assembly vertically adjustably mounted on the machine frame between the undercarriages. The track stabilization assembly comprises drives for vertically adjusting the assembly, oscillatory rolling tools arranged for engaging the rails, vibrators for oscillating the rolling tools, and spreading drives for pressing the rolling tools against the gage sides of the rails. The machine further comprises a leveling reference system including a leveling reference base having a leading and a trailing end point in the operating direction, and a measuring axle carrying a pickup indicating the track level measured by the axle, the measuring axle rolling on the track off-center between the reference base end points and rearwardly of the track stabilization assembly.