baber/WOPTO huggingface dataset:
Patent CA-2047421-A1 (CA)
Title: Plastic laminate comprising aromatic polyether imide and aromatic polyether sulfone
Inventor: SZIGETI PETER R
IPC: B29C59/02
Filed: 1991-07-19
Abstract: ABSTRACT OF THE DISCLOSURE      Coextruded polymer laminates, comprising a core layer made of an aromatic polyether imide or its mixture with at most 40 wt.% of a compatible thermoplastic polymer material and cover layers that are made of an aromatic polyether sulfone and connected so as to adhere to both sides of the core layer, are characterized by flame resistant properties and surprisingly high elongation at break values.  They can be provided with a surface structure and be formed in the thermally softened state without lose of this structure.            RLC\saf
Patent CA-2048378-A1 (CA)
Title: Polymer modified adducts of epoxy resins and active hydrogen containing compounds containing mesogenic moieties
Inventor: HEFNER ROBERT E JR
IPC: C08F290/14
Filed: 1991-08-02
Abstract: ABSTRACT     Polymer modified adducts are prepared by (A) reacting (1) an epoxy resin having an average of more than one vicinal epoxide group with (2) a compound containing an average of two or more hydrogen atoms reactive with an epoxide group; and (B) partially vinylizing reacting the product from step (A); and (C) polymerizing the partially vinylized product from step (B) with (3) a polymerizable ethylenically unsaturated monomer; with the proviso that at least one of the components (1), (2) or (3) contain one or more mesogenic or rodlike moieties.  These adducts are useful as epoxy resin curing agents.     38,742-F
Patent CA-2052232-A1 (CA)
Inventor: OJSTER ALBERT
IPC: B42D25/373
Filed: 1991-09-25
Abstract: Abstract The present invention relates to a data carrier, in par-ticular an identity card, paper of value or the like, having applied thereto a plane element (OVD) with optically variable effects which are dependent on the viewing angle. Within at least a predefined area of the OVD there is additional infor-mation provided between the OVD and the surface of the data carrier in the form of characters, patterns or the like which, subsequently incorporated into the OVD, overlays the optically variable effect of the OVD and is likewise visually recognizable. The invention also relates to a method for pro-ducing such a data carrier.
Patent CA-2052504-A1 (CA)
Inventor: BRICKER JACK A
IPC: C03B29/02
Filed: 1991-09-30
Abstract: Glass sheets of irregular peripheral outlines are flame seamed by a method and apparatus which incorporates a ring-type burner having an apertured inner wall aligned with the central portion of the glass sheet edge to develop an edge of more uniform appearance and smaller irregularities than those obtained using the techniques of the prior art by using a novel structural arrangement for the burner adjacent the apertured wall through which fuel gas is applied as a flame to the central portion of the glass sheet's edge so as to equalize the intensity of the flame applied to different portions of the glass edge where the inner wall edge is straight and where the inner edge wall is curved by providing a slight difference in structure of the flame supply system in the straight and curved portions of the outline of an interior wall structure of the ring-type burner.  The novel structural arrangement used to obtain the more uniform appearance and small irregularities of the glass edge consists of varying the distance separating adjacent ports and/or the size of the port opening of a port-type burner along the straight and curved portions of an inner apertured wall of the burner, depending on the degree of curvature and its concavity or convexity.  Further reduction of non-uniformity of glass edge appearance may be accomplished by providing orbital motion between said glass sheet outline and an apertured inner wall of said ring-type burner.
Patent CA-2053520-A1 (CA)
Title: Meltblown hydrophilic web made from copolymer of an amine-ended polyethylene oxide and a polyamide
Inventor: ALLAN JOHN L
IPC: D04H1/42
Filed: 1991-10-16
Abstract: Abstract A process is disclosed for preparing a nonwoven web comprising melt-blowing a composition comprising a block copolymer, the block copolymer comprising:  (a) recurring units formed from an amine-ended polyethylene oxide; and (b) recurring units formed from a polyamide.
Patent CA-2053803-A1 (CA)
Title: Process for the preparation of (3-fluoropyridin-2-yloxy)phenoxypropionic acids
Inventor: HAESSIG ROBERT
IPC: C07D213/73
Filed: 1991-10-21
Abstract: (3-Fluoropyridin-2-yloxy)phenoxypropionic acids of formula I (See formula I) wherein X is hydrogen, fluoro, chloro, bromo or trifluoromethvl and Y is hydrogen, sodium or potassium, axe prepared by reacting a compound of formula 11   wherein X and Y are as defined for formula I, in an anhydrous medium, with hydrogen fluoride and a diazotising agent, and converting the diazonium fluoride so produced by thermal decomposition into the (3-fluoropyridin-2-yloxy)phenoxypropionic acid of formula I.
Patent CA-2055054-A1 (CA)
Inventor: DINWIDDIE JOHN M JR
IPC: G09G5/00
Filed: 1991-11-06
Abstract: An  information  handling  apparatus  for  transferring  and composing image signals for display.  The apparatus includes a bus adapted to allow selective access for multiple independent image signals generated by respective independent image sources. The selective access enables composition of the independent image signals  in  response  to  control  information;  the  composition enables real time display of a composed image signal.
Patent CA-2056735-A1 (CA)
Title: Chlorinated ethylene copolymer latex
Inventor: DAWES JAMES W
IPC: C08L23/28
Filed: 1991-11-29
Abstract: ABSTRACT OF THE DISCLOSURE         A stable binder latex that is substantially free from organic solvents useful for preparing coating compositions for application to a substrate which comprises a chlorinated ethylene vinyl acetate copolymer resin containing up to 16% by weight vinyl acetate, optionally containing acrylic acid or methacrylic acid in amounts of from 5 to 15% by weight, a nonionic surfactant that is an alkyl or aryl ester of polyoxyethylene, an alkyl or aryl ester of polyoxyethylene-polyoxypropylene adducts, an alkylphenoxy polyoxyethylene, or an alkylphenoxy polyoxypropylene-polyoxyethylene adduct that coats microscopic particles of the chlorinated ethylene vinyl acetate copolymer resins thereby preventing the particles from coalescing, and water, preferably the composition contains a low molecular weight plasticizer.
Patent CA-2056905-A1 (CA)
Title: Apparatus and product
Inventor: KLEISS PETER H
IPC: E04B1/80
Filed: 1991-12-04
Abstract: ABSTRACT        Apparatus  for  forming  a  rippled  or  corrugated profile  in  sheet  material.   The  apparatus  comprises holding means for holding the material prior to profiling, the holding means comprising a pair of holding rollers for holding the material therebetween and rotary press means for imparting the  rippled  or  corrugated profile  to  the material.   The press means comprises a pair of rotatable pressing  rollers,  with each pressing  roller  including  a plurality of pressing elements around its periphery.  The pressing elements associated with one roller are adapted to mesh with the pressing elements of the other pressing roller as the pressing rollers rotate.       A   building   product   comprising   a   rippled   or corrugated metal layer formed with the above apparatus and having an insulating layer bonded thereto is also provided.
Patent CA-2057077-A1 (CA)
Title: Polyalkyloxazoline/polylactone copolymers, processes for making, and uses
Inventor: RIFFLE JUDY S
IPC: C08G63/685
Filed: 1990-05-21
Abstract: Block copolymers of polyoxazoline and polylactone moieties can be used as polymeric compatibilizers for polyamides and polyolefins.
Patent CA-2058489-A1 (CA)
Title: Fifth wheel locking device
IPC: B62D53/10
Filed: 1991-12-27
Abstract: A fifth wheel for an over the road tractor having a locking bolt that may be cocked so as to latch and unlatch respecting movement to engage a king pin retaining jaw.
Patent CA-2059752-A1 (CA)
Title: Ultraviolet screening composite oxide and process for producing the same
Inventor: HAYASHI TAKAO
IPC: C09C1/00
Filed: 1992-01-21
Abstract: ABSTRACT          The composite oxide comprises 100 parts by weight of zinc oxide and, incorporated therein, at least one mamber selected from among the following oxides (1) to (7):  (1) 0.001 to 5.0 parts by weight of lanthanum oxide, (2) 0.001 to 5.0 parts by weight of cerium oxide, (3) 1.0 to 10.0 parts by weight of iron oxide, (4) 1.0 to 10.0 parts by weight of cobalt oxide, (5) 1.0 to 10.0 parts by weight of nickel oxide, (6) 0.1 to 30.0 parts by weight of titanium oxide, and (7) 0.1 to 30.0 parts by weight of aluminium oxide.  This composite oxide may be incorporated in paints, inks, cosmetics, etc.  It is excellent for screening ultraviolet rays and has a high visible light transmittance.  The composite is prepared by separately and simultaneously feeding an acid solution containing zinc and one of the above oxides and an alkaline solution to a reaction tank and agitating the mixture.
Patent CA-2063629-A1 (CA)
Inventor: CORSTON CHARLES
IPC: B65C5/02
Filed: 1992-03-20
Abstract: A method of constructing a floor so as to prevent squeaking due to movement of the floor decking relative to the joists. The joists are installed, and strips of resiliently compressible cushioning tape are laid on the upper edges of the joists so that an adhesive side of the tape adheres thereto to keep the strip in position, and so that a non-adhesive side of the tape faces upwardly therefrom. Floor decking is placed on top of this so that the strip of tape is sandwiched between the decking and the joists, and the non-adhesive surface of the tape permits the decking to be slid thereover to a desired position. Fasteners are than driven through the decking and into the joist to secure the decking in position, and the resilient cushioning tape fills any gaps between the joists and the decking so as to prevent the decking from moving on the joists and causing squeaks. A tool for laying the strips of tape is made up of a spool mounted on a handle so that the tape unwinds from the spool and adheres to the joist as the tool is moved in a forward direction.
Patent CA-2064158-A1 (CA)
Title: Non-pigmented opaque hot melt adhesives
Inventor: PULETTI PAUL P
IPC: C08L53/00
Filed: 1992-03-26
Abstract: ABSTRACT A-B-A based hot melt adhesive compositions are opacified so as to enhance the visibility thereof during application in molten form by the addition thereto of a styrene polymer having a Ring and Ball softening point greater than 200°F; a relative molecular weight greater than 8,000 and a dispersity value greater than 15.
Patent CA-2064398-A1 (CA)
Title: Pincers for throwing and catching a flying disc
Inventor: CHAMBERLAND MARC
IPC: A63B59/02
Filed: 1992-03-30
Abstract: ABSTRACT OF THE DISCLOSURE    The pincers have lower and upper jaws which selectively close for engaging and open for disengaging a flying disc such as a FRISBEE. The jaws are interconnected at one end and have at the opposite ends of each, a pad for gripping the cental portion of the disc. A wall of the lower jaw has a depression which opens upwardly toward the inner wall of the upper jaw.          The depression is defined at one side by a ramp which extends to the pad attached to the lower jaw. The other side of the depression is defined by a wall which curves to a ridge. A notch  is  formed on the  side of  the  ridge  opposite  the depression for receipt of the rim of the disc when it is clamped between its jaws.
Patent CA-2064617-A1 (CA)
Title: Filters for light metals
Inventor: KAETTLITZ WOLFGANG P
IPC: C03C14/00
Filed: 1992-04-01
Abstract: ABSTRACT     FILTERS FOR LIGHT METALS     Filters  for filtering  molten  light  metals comprise  a  reticular  foam  having  a  composition comprising graphite, wollastonite, silica and an alkali phosphate glass.  The filters have a low hardness and can readily be machined accurately from large pieces of the filter material.   In a preferred embodiment the exterior surfaces of the large pieces of filter are coated with a composition comprising graphite and a binder prior to firing and then machined.
Patent CA-2066992-A1 (CA)
Title: Low-ash xanthan gum
Inventor: TALASHEK TODD
IPC: C09K23/56
Filed: 1992-04-24
Abstract: TITLE OF THE INVENTION LOW-ASH XANTHAN GUM            ABSTRACT OF THE INVENTION       A low-ash xanthan gum and process for its preparation.  The gum gives a reduced level of inorganic residue upon combustion, and is particularly useful as a stabilizer in ceramic formulations.
Patent CA-2068610-A1 (CA)
Title: Tensioning device for a thread, tape or the like unreeled from a reel
Inventor: PALMARIN MARIO
IPC: B65H59/04
Filed: 1992-05-13
Abstract: TENSIONING  DEVICE FOR A THREAD, TAPE OR THE  LIKE  UNREELED FROM A REEL               ABSTRACT OF THE DISCLOSURE    Tensioning device for keeping constant the tension of a thread,  tape or the like unreeled from a reel, including  a friction disk acting directly on a rotating element which is kinematically connected to the reel, an internally  threaded bush  rigidly  connected to the friction  disk  and  freely screwed  upon the rotating element supporting shaft, and  an adjustable biasing spring connected to the friction disk for opposing  a rotation thereof which spaces the friction  disk from the rotating element.
Patent CA-2069226-A1 (CA)
Title: One-piece corrugated box with interior supports
Inventor: PALLETT WILLIAM L
IPC: B65D5/50
Filed: 1992-05-22
Abstract: A one-piece, top opening, container which is preferably made of multiply corrugated cardboard. The container comprises a pair of opposed end wall panels and a pair of opposed side wall panels foldably joined together to form a tubular structure, and top and bottom closures for closing opposite ends of the container.      The bottom closure comprises at least one object support or platform which projects upwardly into the container and is adapted for supporting the object that is to be packaged therein. The object support includes foldably joined panel sections and it has an edge which is joined by a fold line to one of the wall panels of the container so that the panel sections of the support can lie substantially flat against the lower portion of the one end wall panel when the container is in a knock-down condition. The top closure comprises at least one restraint wall which extends across the interior of the container at a location spaced downwardly from the upper end thereof. The restraint wall engages the object packaged in the container to restrain movement of the object. The restraint wall is integral with one of the wall panels of the container and is foldably joined thereto by a fold line.
Patent CA-2071859-A1 (CA)
Inventor: MOTLEY GEOFFREY P
IPC: A63B59/12
Filed: 1990-12-07
Abstract: 2071859 9108803 PCTABS00005 A hockey stick (1) comprised on a head (2), a stem (3), a handle (4) and a bead (5) showing a division between the parts 3 and 4.  The stem (3) includes a slot (6) substantially between the bead (5) and the head (2). The hockey stick is formed by injection moulding a foamed thermoplastics material, usually glass fibre reinforced nylon, such that the density through the head and stem is greater in an outer skin region than in a region contained by the outer skin. The foamed thermoplastic material is formed by the inclusion of a foaming or blowing agent within the plastic material before injection into the mould and the foamed plastics material is held under substantive pressure which is inherently lessened upon release into the mould. The glass fibre reinforcement has an average length of 8 mm and comprises 80 % of the weight of the fibre reinforced plastics material. The quantity of foaming agent is sufficient to reduce the weight of the foamed plastics material to 80 % of that which would be the case if not so foamed.
Patent CA-2071866-A1 (CA)
Inventor: CAHILL STEPHEN V
IPC: H04B1/10
Filed: 1991-09-03
Abstract: A radio receiver having a variable bandwidth received channel filter (113,115) to reduce interference is disclosed. A interference is detected by comparing received signal strength and received signal BER. The bandwidth of the filter ( 113,115) is narrowed to improve BER when a received signal strength is greater than a threshhold value and BER is worse than a threshhold value.
Patent CA-2072165-A1 (CA)
Inventor: ASH CARLTON E
IPC: C08G75/06
Filed: 1992-06-23
Abstract: A process is provided for producing a poly(arylene sulfide) polymer which employs waste material comprising poly(arylene sulfide) polymer that is normally discarded or otherwise disposed of, wherein the waste stream is contacted with a polymerization reaction mixture under polymerization conditions. The waste material can optionally contain other components such as cyclic and linear oligomers, inorganic salts, polar organic compounds and water.
Patent CA-2073181-A1 (CA)
Title: Optically pure r(-) albuterol for treating asthma
Inventor: BARBERICH TIMOTHY J
IPC: A61K31/135
Filed: 1991-01-04
Abstract: The optically pure R(-) isomer of albuterol, which is substantially free of the S(+) isomer, is a potent bronchodilator for relieving the symptoms associated with asthma in individuals. A method is disclosed utilizing the optically pure R(-) isomer of al-buterol for treating asthma while minimizing the side effects associated with albuterol.
Patent CA-2073672-A1 (CA)
Title: Method and apparatus for incubating eggs
Inventor: CANNON ROBERT W
IPC: A01K41/02
Filed: 1990-10-10
Abstract: An incubator (10) for incubating and hatching eggs includes a removable air control unit (24) for humidifying, heating or cooling, and circulating air in the incubator (10). The air control unit (24) is positioned between a pair of racks (32) containing egg trays (106) with removable inserts (117,126) to accommodate differently sized eggs.      Sensors (40) monitor various parameters such as temperature and relative humidity. A computer (136) controls the air control unit (24) to maintain operator-selected values of the sensed parameters.
Patent CA-2075481-A1 (CA)
Title: Hydrogen peroxide destroying compositions and methods of making and using same
Inventor: GYULAI PETER
IPC: A61L2/18
Filed: 1991-01-10
Abstract: A composition and methods useful for making such compositions and for using such compositions to destroy hydrogen peroxide in a liquid aqueous medium, such as that used to desinfect contact lenses, are disclosed. The composition comprises a coated core containing at least one hydrogen peroxide destroying component effective when released into a liquid aqueous medium to destroy or cause the destruction of hydrogen peroxide present in the liquid aqueous medium, and a barrier coating acting to substantially prevent the release of the hydrogen peroxide destroying component for a period of time after the composition is initially contacted with a hydrogen peroxide-containing liquid aqueous medium.  The barrier coating is substantially water soluble, preferably includes polyvinylpyrrolidone and is applied as a substantially dry, solid material.
Patent CA-2076265-A1 (CA)
Title: Ic carrier or ic socket
Inventor: KUBO MASAAKI
IPC: H05K7/10
Filed: 1992-08-17
Abstract: ABSTRACT OF THE DISCLOSURE      A latch arm 6 for engaging with a corner portion, etc. of an IC 3 being pivotably supported on a corner portion, etc. of a base member of an IC carrier or IC socket, a spring element 6b being extended from a rear end of the latch arm, the spring element 6b, when the latch arm 6 is pivoted up-wardly to remove engagement, being bent to accumulate resilient force, so that the latch arm 6 is restored in the engaging direction by the reaction, in order to maintain the engagement with the IC 3.
Patent CA-2077157-A1 (CA)
Title: Analytical method of polymer
Inventor: MIWA SHIGERU
IPC: C12Q1/68
Filed: 1992-08-28
Abstract: ABSTRACT         By contacting a sample containing an analytical subject polymer and a low molecular weight substance with an insoluble carrier preliminarily bound with an identical polymer to or a different polymer from the analytical subject polymer to satura-tion, the low molecular weight substance is adsorbed onto the insoluble carrier without adsorbing the analytical subject polymer, whereby the analytical subject polymer can be separated from the low molecular weight substance.  By contacting a mixture containing an analytical subject polymer and a low molecular weight substance with an insoluble polymer preliminarily bound with an identical. polymer to or a different polymer from the analytical subject polymer to saturation, and measuring the amount of the low molecular weight substance not adsorbed to the insoluble carrier, the amount of the low molecular weight substance specifically bound to the analytical subject polymer can be assayed, whereby it is determined whether or not the low molecular weight substance is specifically bound to the analytical subject polymer.
Patent CA-2078063-A1 (CA)
Title: Process and device for converting the data structure of messages in a packet-switching system
Inventor: SCHRODI KARL
IPC: H04L12/54
Filed: 1992-09-11
Abstract: Abstract of the Disclosure The invention concerns a process and a device for converting the data structure of messages in a packet-switching system, in which the messages are inserted into cell-oriented data structures as well as also appearing in a frame-oriented data structure, where time slots of a cell that has been converted into a frame, are always arranged in specified locations of successive frames.  To guarantee a favorable probability distribution with respect to the occurrence of delays during the conversion of cells and frames by means of a memory matrix (19) arranged into a conversion unit, an address logic (17) determines the optimum position of the actual time slot (12) to be stored in the memory matrix (19), and a corresponding memory pointer is established for memory control.  The invention is applicable above all in packet-switching systems for the transmission of data.
Patent CA-2078417-A1 (CA)
Title: Carbide tip and pick
Inventor: MCSHANNON GORDON A
IPC: E21C35/183
Filed: 1992-09-16
Abstract: ABSTRACT          CARBIDE TIP AND PICK       A  carbide mineral cutting tip (5) comprises  a  solid carbide body having at least one front face (6);  at least one top face (9);  a bottom, seating face (12);  a rear face (20); and  lateral,  side faces (13),  the tip (5) comprising a main tip  portion (14) and an extended tail portion (15)  the  rear face  (20)  being  provided at the end of  the  extended  tail portion  (15), whereby the front-to-rear length A to C of the tip  (5)  approximates  to  twice the depth  of  the  tip  (5) represented  by the top-to-bottom length D to E of  the  front face  (6),  with  two  faces (10) converging to an  apex  (11) defining  the  top face (9) of the main tip portion  (14)  and with the top face of the tail portion (15) defined by  another two  faces  (18)  converging  to  a top  apex  (19)  which  is contiguous with the top apex (11) of the main tip portion (14) at an increased back clearance angle compared with that of the main  tip portion (14).    The invention also includes a  pick (1) provided with such a tip (5).