Patents Examined by P. C. Sluby
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Patent number: 5633081Abstract: A coated porous substrate comprising a porous substrate having a coating of electrically conductive tin oxide on at least a portion of all three dimensions thereof. The coated porous substrate is useful in the lead acid batteries, catalysis, heating, shielding porous membrane and field dependent fluid applications.Type: GrantFiled: November 25, 1994Date of Patent: May 27, 1997Assignee: Ensci Inc.Inventors: Thomas J. Clough, Victor L. Grosvenor, Naum Pinsky
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Patent number: 5609944Abstract: A gravure roll and associated coating methods are disclosed that produces a uniform coating gradient on a substrate. The gravure roll comprising a series of cells arranged in circumferential line density sections in which the line densities progressively increase from section to section, and in which the cell volumes progressively decrease within each section, and in which the cell volumes at the end of one section are substantially the same as the cell volumes at the beginning of the next adjacent section.Type: GrantFiled: May 11, 1995Date of Patent: March 11, 1997Assignee: Rexam Industries Corp.Inventors: Thomas R. Fields, Amy E. Bohr, Kendalyn R. McCoy, Lawrence C. Forszen
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Patent number: 5599630Abstract: A liquid thermoset coating is described for application on and near surfaces of molded plastic parts where the resin rich phase has been disturbed or imperfectly formed. The coating has been found to be effective at minimizing paint pops and craters in subsequent finish coatings on said parts. Said paint pops and craters develop during heated cure cycles for the finish coatings. The coating which is applied to the heated part and subsequently cured is preferably an epoxy composition of low viscosity. The molded plastic parts are preferably fiber reinforced thermoset polyester parts with an in-mold coating to improve surface quality.Type: GrantFiled: June 5, 1995Date of Patent: February 4, 1997Inventors: Robert W. Smith, David S. Cobbledick, Charles M. Kausch, Donald F. Reichenbach, Satish C. Sharma, Richard Simmons
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Patent number: 5569542Abstract: A composite board which includes a core and inner and outer surface layers, said core and surface layers each including cellulose material and a cured resin binding said cellulose material together, wherein the resin in the core of the composite is an acid setting resin and the core includes a low steam volatile weak acid in an amount of between 2 to 8% by weight to the dry weight of the cellulose material in the core.Type: GrantFiled: January 17, 1995Date of Patent: October 29, 1996Assignee: ACI Australia LimitedInventors: Peter J. Burton, Brent P. Deale
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Patent number: 5569541Abstract: A modified plastic film in the form of a plastic film provided on both its surfaces with ionizing radiation cured resin layers having a hardness equal to or harder than a pencil hardness of H and a recording material formed with the modified plastic film as a substrate, wherein rippling during storage in high humidity or caused by heat is markedly reduced.Type: GrantFiled: December 27, 1994Date of Patent: October 29, 1996Assignee: Kimoto Co., Ltd.Inventors: Yoshihisa Kimura, Toshinori Kido, Takashi Shimizu
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Patent number: 5562979Abstract: The method involves providing a powdered or granulated plastics paint material which is heated to a plastic condition to form a plastics coating material and injected into a mould. A plastics substrate material is also injected to spread the plastics coating material over surfaces of the mould so as to envelope the plastics substrate material. A moulding is then produced comprising a substrate having a surface coated by the injected plastics paint material. The method enables a moulding to be produced having a painted surface produced in the mould thereby avoiding the need to apply a subsequent paint finish.Type: GrantFiled: September 2, 1994Date of Patent: October 8, 1996Assignee: Rover Group LimitedInventors: Ronald A. Easterlow, Gordon F. Smith
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Patent number: 5562969Abstract: A decorative board comprising an inorganic substrate comprising an inorganic material other than a metal or a glass and having an organic or inorganic layer on a surface thereof, the substrate having consecutively thereon (1) a transfer base layer comprising a polyol-curing polyurethane resin, which is transparent or contains a colorant so as to have a color with hiding properties; (2) a transfer-printed layer having a pattern; and (3) a topcoat layer comprising a polyol-curing polyurethane resin.Type: GrantFiled: August 4, 1994Date of Patent: October 8, 1996Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Keiji Sakamoto, Yoshio Takahashi, Yasukichi Ogasawara
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Patent number: 5562980Abstract: A multi-layer paper or paperboard construction that has good moisture vapour barrier qualities and mechanical strength and is easily repulpable. The construction permits the use of a very thin PVdC/butyl acrylate barrier layer by primer and laminant layers disposed on the inside surfaces of the paper substrates. The primer and laminant layers are a blend of a inorganic pigment dispersion and a styrene acrylate binder. The multi-layer construction has particular application as a wrapper to protect bulk rolled paper and paperboard prior to shipment from the paper mill and as a linerboard facing in corrugated boxes where liner packaging requires protection against water vapour.Type: GrantFiled: November 2, 1994Date of Patent: October 8, 1996Assignees: Cartons St-Laurent Inc., St. Laurent Paperboard Inc.Inventor: Serge Koutitonsky
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Patent number: 5560988Abstract: A gas barrier laminate having a laminated structure of at least two layers includes a gas barrier film (A) formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid or a partially neutralized product thereof in a weight ratio ranging from 95:5 to 10:90, and having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, and a layer (B) formed from a thermoplastic resin. The film (A) and layer (B) are laminated contiguously to each other. A process for the production of a gas barrier laminate having a laminated structure of at least two layers comprises a step of forming a gas barrier film (A) having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C.Type: GrantFiled: January 25, 1995Date of Patent: October 1, 1996Assignee: Kureha Kagaku Kogyo K.K.Inventors: Hiroyuki Oba, Hideaki Tanaka, Tomoaki Sato, Tomohisa Hasegawa, Kazuhiko Hirose
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Patent number: 5547764Abstract: The present invention is a method of producing low oxygen-transmissive films having PVOH coatings through the utilization of a PVOH solution which includes at least two PVOH resins having differing degrees of hydrolysis. The present invention is also a low oxygen-transmissive film manufactured by this method.Type: GrantFiled: December 22, 1994Date of Patent: August 20, 1996Assignee: Mobil Oil CorporationInventors: Marcia Blais, Anthony R. Knoerzer
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Patent number: 5547741Abstract: Flexible vinyl floor coverings in which the wear layer comprises a blend of PVC, simple ester plasticizer and thermoplastic urethane polymer have improved anti-slip characteristics and good resistance to staining, abrasion and scratching. The urethane polymer is preferably an aliphatic polyester polyurethane, and it is preferably present in an amount of 5 to 40 parts by weight per 100 parts PVC resin.Type: GrantFiled: June 21, 1994Date of Patent: August 20, 1996Assignee: The Amtico Company LimitedInventor: Gary J. Wilson
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Patent number: 5548012Abstract: An automotive weather strip comprising a base material, a urethane layer and an adhesive composition formed between the base material and the urethane layer, wherein said base material comprises an ethylene/propylene rubber and said adhesive composition comprises components (A) to (E), the weight ratio of component (A) to component (B) being 60:40 to 40:60,(A) an epoxy group-containing acrylic elastomer,(B) an ethylene/.alpha.-olefin copolymer,(C) an organic peroxide,(D) at least one member selected from the group consisting of a primary amines and an imidazole compound, and(E) calcium oxide.The present invention can provide an automotive weather strip in which a base material containing the ethylene/propylene rubber has been strongly adhered to the urethane layer forming a surface layer, and which can be produced efficiently without requiring many production steps and also without using a hygienically undesirable solvent-containing adhesive.Type: GrantFiled: October 13, 1994Date of Patent: August 20, 1996Assignees: Sumitomo Chemical Company, Ltd., Toyoda Goesi Co., Ltd.Inventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama, Takeshi Naito, Masanori Aritake
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Patent number: 5545459Abstract: A business form comprising a substrate with at least one surface bearing a dual-functional coating comprising a copolymer of ethylene and vinyl acetate containing at least 40 weight percent ethylene and having a softening point of at least 60.degree. C. enhances adhesion of toner particles and is self-adhering under application of heat and pressure.Type: GrantFiled: January 20, 1995Date of Patent: August 13, 1996Assignee: Wallace Computer Services, Inc.Inventor: John C. H. Chang
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Patent number: 5543191Abstract: Composite pressure sensitive label sheets will print in hot laser printers without curling if they comprise at least three layers: A. at least one base layer having a pressure sensitive adhesive on the bottom face, B. a printable surface layer on top of the base layer or layers, and C. a strippable protective backing on the pressure sensitive adhesive coated bottom face on the base layer or layers and if the thermal expansion or contraction characteristics of the printable layer B and the protective backing C are the same or substantially the same.Type: GrantFiled: February 6, 1995Date of Patent: August 6, 1996Assignee: Peter J. Dronzek, Jr.Inventors: Peter J. Dronzek, Jr., Roger H. Sedran, Brian K. Burke
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Patent number: 5543207Abstract: A composition for coating onto a substrate to form a wall covering comprises an aqueous latex of a copolymer of a diene and a copolymerisable ester such as methacrylate. The composition may include a filler and/or pigment and may include a blowing agent.Type: GrantFiled: November 18, 1994Date of Patent: August 6, 1996Assignee: Synthomer LimitedInventors: John E. Heighington, Daphne Butters, Stephen J. Claxton
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Patent number: 5543197Abstract: A composite bamboo beam for use as a substitute for natural wood beams. Segments of bamboo stalk, either split or whole, are longitudinally aligned and randomly stacked. The bamboo segments are compressed and bonded together to form a cohesive bamboo composite structure from which beams of the desired dimension may be cut.Type: GrantFiled: February 18, 1994Date of Patent: August 6, 1996Inventor: Jay Plaehn
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Patent number: 5543223Abstract: A multiple layer film useful in moisture barrier packaging applications has at least one layer comprising a blend of propylene polymer or copolymer, and a hydrocarbon resin; and two additional layers comprising a propylene polymer or copolymer, ethylene alpha olefin copolymer, ionomer, polybutene, or blends thereof. A core layer of ethylene vinyl alcohol copolymer or other oxygen barrier material, or high density polyethylene, can be included in some embodiments. A preferred embodiment of the multi-layer film exhibits excellent moisture barrier and optical properties, and shrink properties as well if the film has been oriented. High oxygen barrier is also a feature in embodiments including EVOH or other oxygen barrier materials.Type: GrantFiled: December 16, 1994Date of Patent: August 6, 1996Assignee: W. R. Grace & Co.-Conn.Inventor: Gautam P. Shah
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Patent number: 5541002Abstract: A printing paper comprises a paper substrate and a coating layer formed on at least one side of the substrate and formed from a coating composition comprising a white pigment and a water-soluble resin in an amount of from 4 to 10 g/m.sup.2. When the paper sheet is divided or split into a printing surface layer and a non-printing surface layer, a difference in shrinking rate along a cross direction between the printing surface layer and the non-printing surface layer is within a range of .+-.0.1%. The paper can suppress curling on printing.Type: GrantFiled: October 13, 1994Date of Patent: July 30, 1996Assignee: Fuji Xerox Co., Ltd.Inventors: Kiyoshi Hosoi, Tsukasa Matsuda
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Patent number: 5538770Abstract: An extrudable vinylidene chloride composition is useful in packaging films where controlled CO.sub.2 and O.sub.2 transmission rates benefit the packaging of products such as gassing cheese. The compositon, and film made therefrom, comprises 100 parts by weight of at least one vinylidene chloride copolymer; between 4 and 15 parts by weight of a plasticizer; and between 4 and 15 parts by weight of an acrylate/styrene copolymer; wherein the total amount of plasticizer and acrylate/styrene copolymer comprises at least 9 parts by weight.Type: GrantFiled: November 18, 1994Date of Patent: July 23, 1996Assignee: W. R. Grace & Co. -Conn.Inventor: Solomon Bekele
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Patent number: 5536806Abstract: Disclosed are oriented poly(alkylene carbonates) useful in packaging film for food and other oxygen effected substances. These oriented polymers include poly(alkylene carbonates) with substantial crystallinity. Also disclosed is the crystallization of amorphous poly(alkylene carbonates) by stretching or orienting them. Further disclosed are (1) a high oxygen barrier, high clarity laminate resistant to delamination, that has a layer comprising an oriented, low oxygen barrier, predominantly crystalline polymer, and another layer adherent directly or indirectly thereto and comprising an oriented poly(alkylene carbonate) preferably with substantial crystallinity; and (2) a method for making the laminate from the polymer and the amorphous counterpart of the poly(alkylene carbonate).Type: GrantFiled: October 25, 1994Date of Patent: July 16, 1996Assignee: PAC Polymers Inc.Inventor: Joseph G. Sant'Angelo