In Coating Or Impregnation Patents (Class 428/368)
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Patent number: 6004638Abstract: A bottle molded from a polyester composition comprising 97 to 99.99% by weight of a polyester and 3 to 0.01% by weight of a polyester elastomer, which bottle exhibits dimensional change ratios of not greater than 5% measured in the height direction of the bottle and also not greater than 5% measured in the wall part diameter direction of the bottle and has an overturning angle of at least 10.degree., when the bottle was subjected to a hot bath test in which the bottle is filled with a beverage containing 2.5 gas volume carbon dioxide at 23.degree. C., stoppered and immersed in sealed condition in a hot bath heated at 70.degree. C. Thus, the bottle retains self-standing property without deformation even after it is filled with a carbonated beverage and subjected to heat sterilization.Type: GrantFiled: February 28, 1996Date of Patent: December 21, 1999Assignee: Mitsui Chemicals, Inc.Inventors: Hidenori Kaya, Isao Hata, Koji Nakamachi, Michio Tugawa, Susumu Hatabu
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Patent number: 6004671Abstract: A reinforcement for composite materials is disclosed, which comprises a number of filaments of inorganic long fiber and glass and/or glass ceramic present in the gaps among the filaments and having a wire or tape form. Also disclosed is a metallic or ceramic composite material composed of a plurality of the reinforcements and a metal or intermetallic compound or ceramic which is present in the gaps among the individual reinforcements.Type: GrantFiled: January 13, 1995Date of Patent: December 21, 1999Assignee: Research Institute of Advanced Material Gas-Generator, Ltd.Inventors: Takemi Yamamura, Mitsuhiko Sato, Makoto Tamura, Shinji Kajii, Yasuo Matsumori, Yoshikatu Harada
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Patent number: 6001282Abstract: An electromagnetic shield (20) for protecting individuals from the adverse effects of electromagnetic radiation includes a homogenous composition of finely ground tourmaline and a porous carrier. The electromagnetic shield (20) is attached to a radiating device such as the handset of a portable telephone. The tourmaline reacts with moisture in the air to produce negative ions which cancel the positive ions created by the radiating device, thereby substantially reducing or eliminating the harmful effects of the radiation. The electromagnetic shield (20) composition can be molded into housings for radiating devices.Type: GrantFiled: May 15, 1999Date of Patent: December 14, 1999Assignee: Electro K, Inc.Inventor: Rick K. Kanase
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Patent number: 6001454Abstract: A charging member supplied with a voltage to charge a charge-receiving member such as an electrophotographic photosensitive member has an elastic layer of an ethylene-propylene copolymer containing a diene component. The ethylene-propylene copolymer has an iodine value of 23-32. The charging member is improved in resistance to permanent deformation while providing excellent images for a long period.Type: GrantFiled: August 1, 1997Date of Patent: December 14, 1999Assignee: Canon Kabushiki KaishaInventors: Jun Murata, Yoshiaki Nishimura, Hiroshi Mayuzumi
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Patent number: 5993923Abstract: Rubber articles are coated with a powder-free copolymer coating to provide improved mold release characteristics, improved donning characteristics, and improved tactile feel. The copolymer is formed by the polymerization of a at least one copolymerizable silicone oligomer, at least one alkyl acrylate, and at least one hard monomer. The hard monomer, when homopolymerized, has a glass transition temperature of at least 0.degree. C. The copolymers are preferably formed by a sequential polymerization process.Type: GrantFiled: June 18, 1997Date of Patent: November 30, 1999Assignee: Avery Dennison CorporationInventor: Ivan S. Lee
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Patent number: 5989662Abstract: A consumable container is molded from a composition comprising 40 to 90 weight % of an asphalt and 10 to 60 weight % of a polymer material, which advantageously can include a first polymer such as PP that imparts heat resistance and a second polymer such as EVA that imparts toughness and impact resistance. This molded asphalt/polymer material preferably has an unnotched Izod impact strength of at least 2 joules. The container is consumable--it can be melted along with roofing asphalt held in the container without adversely affecting the properties of the asphalt and without requiring undue mixing. The composition also can be used to reduce fumes normally emitted from a kettle of molten asphalt, e.g., as measured by a reduction of the visual opacity of the fumes by at least 25%, a reduction of the hydrocarbon emissions of the fumes by at least 20%, or a reduction of the total suspended particulates emissions of the fumes by at least 15%. The container may be used, e.g.Type: GrantFiled: September 30, 1997Date of Patent: November 23, 1999Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Richard T. Janicki, Donn R. Vermilion, Kevin P. Gallagher, Frederick H. Ponn, Michael R. Franzen, Jorge A. Marzari, Jay W. Keating, David C. Trumbore, Steven G. Harris, Edward Mirra, Jr.
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Patent number: 5989695Abstract: A floor mat for animals is provided which is formed from strands of shredded reclaimed tire rubber and adhesive. The floor mat includes a generally flat top surface and a corrugated under surface.Type: GrantFiled: October 1, 1997Date of Patent: November 23, 1999Inventors: John J. Fuller, Ricky T. Fuller, Gilbert N. Knoop, Michael L. Miner
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Patent number: 5985392Abstract: Composite including a rubber/thermoplastic blend adherent by itself to a thermoplastic material; the blend is in the form of a thermoplastic matrix containing rubber nodules functionalized and vulcanized during the mixing with the thermoplastic. Composite articles obtained by overmoulding the vulcanized rubber/thermoplastic blend onto the thermoplastic.Type: GrantFiled: January 2, 1997Date of Patent: November 16, 1999Assignee: Elf Atochem S.A.Inventors: Marius Hert, Patrick Alex, Martine Cerf, Christian Dousson
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Patent number: 5985393Abstract: A heat insulating box, such as a refrigerator box, comprises a heat insulator and a box member that is in contact with the heat insulator. The heat insulator is formed of a urethane foam using either HCFC-123 (CHCl.sub.2 CF.sub.3) or HCFC-141b (CH.sub.3 CCl.sub.2 F) or both as a forming agent, and the box member is formed of a styrene/acrylonitrile/butadiene terpolymer, a styrene/ethylene-.alpha.-olefinic rubbery copolymer/acrylonitrile terpolymer (AES resin), a styrene/alkyl acrylate ester containing rubbery copolymer/acrylonitrile terpolymer (AAS resin), or a mixture of the AES resin and the AAS resin.Type: GrantFiled: July 7, 1997Date of Patent: November 16, 1999Assignees: Mitsubishi Denki Kabushiki Kaisha, Ube Cycon, Ltd.Inventors: Sumihisa Akahoshi, Yutaka Igarashi, Kouji Hirata, Masanori Tsujihara, Fumiaki Baba, Akira Yamada, Chisa Kato
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Patent number: 5974589Abstract: A method of making a latex article, by contacting a latex article with water, an aqueous emulsion comprising a high-density, substantially linear hydrocarbon polymer, and an acid-activated oxidizing agent or initiator, mixing in an acid to the reaction mixture to activate the oxidizing agent or initiator, then, after a first selected period of time sufficient to adhere the polymer to the surface of the article, mixing a stopping agent into the activated reaction mixture to substantially reduce or halt the oxidization and, after a second selected period of time sufficient to reduce substantially or halt oxidization, neutralizing the article with a neutralization mixture comprising water and a base.Type: GrantFiled: May 13, 1998Date of Patent: November 2, 1999Assignee: LRC Products, Ltd.Inventors: Bradley L. Pugh, Russell D. Culp
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Patent number: 5972499Abstract: A process and materials made by the process which includes a bicomponent fiber, made of a nonconductive first component, including a first fiber-forming polymer selected from the group consisting of polyethylene terephthalate, nylon 6, nylon 6,6, cellulose, polypropylene cellulose acetate, polyacrylonitrile and copolymers of polyacrylonitrile; a conductive second component, including carbon particles and a second fiber-forming polymer selected from the group consisting of polyethylene terephthalate, nylon 6, nylon 6,6, cellulose, polypropylene cellulose acetate, polyacrylonitrile and copolymers of polyacrylonitrile; and a conductive third component, including a polymer selected from the group consisting of polypyrrole and polyaniline, said polymer formed in situ and being interspersed among at least a portion of the carbon particles of the second component.Type: GrantFiled: June 4, 1997Date of Patent: October 26, 1999Assignee: Sterling Chemicals International, Inc.Inventors: Edgardo Rodriguez, John W. Lindsay, William E. Streetman
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Patent number: 5965276Abstract: Single and multiple layer membranes such as gloves and condoms include one or more deactivating barrier layers and/or indicating layers to indicate to a user membrane breach or the presence of a harmful substance in blood or body fluids. A membrane may include one or more permeable or semipermeable layers to disperse contained substances such as lubricants, biocides, spermicides, or indicators outwardly, and may also include permeable or semipermeable layers to allow transmission of body fluids or other environmental fluids inwardly into contact with an indicating or treating substance. An intermediate layer of a multi-layer membrane may include a substance to wipe, cleanse, sterilize, or otherwise treat a piercing needle. A membrane may include a sealing or coating to entrap indicators or other agents such as biocides therein. A method of making membranes such as gloves results in a double glove having discrete inner or outer layers joined only in a cuff region.Type: GrantFiled: August 13, 1997Date of Patent: October 12, 1999Assignee: BIO Barrier, Inc.Inventors: Robin Renee Thill Shlenker, David J. Lester, Clive C. Solomons, Sebastian S. Plamthottam
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Patent number: 5962094Abstract: The present invention relates to a closure giving a tight mechanical seal and preferably made from metal or plastic, with an insert on its inner side as a sealing element for containers, in particular for bottles and glassware, where the insert is composed of at least one polyolefin which can be prepared using catalysts selected from the class consisting of the metallocenes.Type: GrantFiled: April 23, 1998Date of Patent: October 5, 1999Assignee: PPG Industries Ohio, Inc.Inventors: Doris Osterkamp, Peter Nussen
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Patent number: 5962135Abstract: This invention describes the infiltration methods used to incorporate ceramic additives in carbon/carbon brake disc preforms. Aqueous vacuum infiltration techniques were employed. Both methods were effective in achieving homogeneous dispersion of ceramic additives throughout brake disc thickness. Heat treatment processes were developed to convert oxide additives to more refractory phases. Both temperature and N.sub.2 overpressure were precisely controlled during conversion. By using the additives, infiltration routes, and heat treatment schedules, brake disc friction material performance properties such as friction coefficient, friction coefficient stability, and brake disc wear rate are improved. The disclosed carbon/carbon brake discs can be used in aerospace, automotive and other friction material applications.Type: GrantFiled: October 3, 1997Date of Patent: October 5, 1999Assignee: AlliedSignal Inc.Inventors: Terence Bryan Walker, Richard J. Donaldson, Philip J. Whalen
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Patent number: 5957164Abstract: This device is a hose for air conditioning purposes that is a barrier hose. The hose comprises an innermost tube of a thermoplastic vulcanizate. The innermost tube of thermoplastic vulcanizate is coextruded with a flexible polyamide barrier material as a second tube. A backing of thermoset rubber is extruded or calendared over the polyamide barrier tube. A reinforcement layer follows which is then covered with an EPDM outer cover.Type: GrantFiled: September 10, 1998Date of Patent: September 28, 1999Assignee: Aeroquip CorporationInventor: Scott Campbell
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Patent number: 5958532Abstract: Described herein is a method of preparing a fluoropolymer composite tube comprising the steps of forming a fluoropolymer substrate, and thereafter layering and chemically bonding the fluoropolymer with a polymer layer, preferably a thermosetting or thermoplastic elastomer. The fluoropolymer substrate can be activated by subjecting the substrate to a charged gaseous atmosphere formed by electrically ionizing a gas which contacts the substrate. Thereafter, a layer of a thermosetting or thermplastic elastomer is applied to the activated fluoropolymer substrate resulting in a stronger chemical bond. The ionizing step can be described as a mixed gas plasma discharge or an electrically formed plasma. The thermosetting elastomer can, but does not have to contain a curing agent.Type: GrantFiled: March 14, 1995Date of Patent: September 28, 1999Assignee: Pilot Industries, Inc.Inventors: Edward Krause, Kenneth J. Kuenzel
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Patent number: 5955164Abstract: An electroconductive resin composition comprising (A) at least one thermoplastic resin selected from the group consisting of a polyphenylene ether type resin, a polystyrene type resin and an ABS type resin, (B) carbon black, and (C) an olefin type resin, said electroconductive resin composition containing from 5 to 50 parts by weight of (B) the carbon black per 100 parts by weight of (A) the thermoplastic resin, and from 1 to 30 parts by weight of (C) the olefin type resin per 100 parts by weight of the total amount of (A) the thermoplastic resin and (B) the carbon black, and said electroconductive resin composition having a surface resistivity of from 10.sup.2 to 10.sup.10 .OMEGA..Type: GrantFiled: November 25, 1998Date of Patent: September 21, 1999Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Takeshi Miyakawa, Mikio Shimizu
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Patent number: 5952100Abstract: A fiber-reinforced silicon--silicon carbide matrix composite having improved oxidation resistance at high temperatures in dry or water-containing environments is produced. The invention also provides a method for protecting the reinforcing fibers in the silicon--silicon carbide matrix composites by coating the fibers with a silicon-doped boron nitride coating.Type: GrantFiled: May 21, 1997Date of Patent: September 14, 1999Assignee: General Electric CompanyInventors: Gregory Scot Corman, Krishan Lal Luthra
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Patent number: 5952423Abstract: Plastic compositions, containers useful in the storage of red blood cells, and methods for providing such red blood cell storage containers and for storing red blood cells are disclosed. The plastic composition includes a polyolefin copolymer and a plasticizer. The flexibility of such plastic compositions and containers made thereof is substantially unchanged upon heating to a high temperature relative to its flexibility before such heating.Type: GrantFiled: July 18, 1997Date of Patent: September 14, 1999Assignee: Baxter International Inc.Inventors: Shaye-Wen Shang, Michael Tung-Kiung Ling, Lecon Woo
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Patent number: 5952065Abstract: Products in the form of cushioning devices made from flexible membranes employing at least one layer including thermoplastic urethane and at least one layer of a copolymer of ethylene and vinyl alcohol are inflatable to a relatively high pressure. The cushioning devices maintain the internal inflatant pressure for extended periods of time by employing a phenomenon referred to in the industry as diffusion pumping. Ideally, the cushioning devices of the present invention can be permanently inflated with gases such as nitrogen or air.Type: GrantFiled: August 31, 1994Date of Patent: September 14, 1999Assignee: Nike, Inc.Inventors: Paul H. Mitchell, James C. Sell, Jr., Henry W. Bonk
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Patent number: 5939192Abstract: A novel, bio-degradable molding based on particles of a plant fiber material, preferably wood and/or cellulose, in particular recycled fiber material, as well as other additives, which are integrated preferably with starch and/or protein into a matrix of at least one biogenic material which has been reduced at high temperature and pressure to a molten state and undergone thermoplastic treatment, and a process for manufacturing the molding and uses thereof. The molding is substantially free of pores and the particles are at least partially impregnated with at least one resin acid (where appropriate mixed with at least one fatty acid, in particular from tall oil and/or natural resins) and preferably also with at least one fat, oil and/or wax; the total water content of the molding is no greater than 18 wt %, preferably 3-16 wt %, and in particular 4-12 wt %, while its preferred density is 0.8-1.25 t/m.sup.3.Type: GrantFiled: February 12, 1996Date of Patent: August 17, 1999Inventors: Markus Rettenbacher, Norbert Mundigler
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Patent number: 5922461Abstract: This invention provides a method for inhibiting adsorption of container-derived contaminants on a powdery or solid drug which comprises establishing a lower alcohol vapor phase within a container made, at least in part, of rubber or a plastic material. The method inhibits adsorption of container-derived substances on a drug to preclude development of insoluble particulate matter owing to said adsorption in an aqueous solution prepared extemporaneously without causing loss of the drug and avoiding the toxic effect of decomposition or degradation of the drug, thus insuring a long-term trouble-free stable shelf-life of the drug.Type: GrantFiled: June 5, 1997Date of Patent: July 13, 1999Assignee: Otsuka Pharmaceutical Factory, Inc.Inventors: Fujio Inoue, Masamitsu Izumi, Satoru Hayashi, Chieko Yoshida
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Patent number: 5922460Abstract: A metal matrix composite material made of a fiber reinforcement having a coating of gadolinium and gadolinium boride, preferably as discrete layers, each having a thickness of 1 to 6 microns. This composite is made by coating reinforcing fibers with gadolinium using a deposition technique, further coating the fibers with gadolinium boride by a deposition technique and then consolidating the coated fibers into a metal matrix to form the metal matrix composite.Type: GrantFiled: May 21, 1997Date of Patent: July 13, 1999Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain & Northern Ireland of Defence Evaluation and Research AgencyInventors: Charles M. Ward-Close, Francis H. Froes, Deepak Upadhyaya, Panos Tsakiropoulos
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Patent number: 5904983Abstract: An optical fiber protected from degradation caused by corrosion from environmental fluids. The optical fiber includes a core-cladding assembly surrounded with a thin quasi metal oxide film (preferably .about.10 nm in depth). Over time, particularly under the influence of the elevated temperatures, the initially deposited reagents of the thin film oxidize or hydrolyze, removing the organic components, and bonding a quasi metal oxide film on the surface of the cladding. The resulting film significantly retards corrosion by blocking the environmental fluids from reacting with flaws in the cladding surface of the fiber, thus improving the mechanical performance and reliability of the optical fiber. In addition, the thin film protects the fiber against incidental abrasions.Type: GrantFiled: May 23, 1997Date of Patent: May 18, 1999Assignee: Lucent Technologies Inc.Inventors: Maureen Gillen Chan, Daryl Inniss, Howard Edan Katz, Valerie Jeanne Kuck, Marcia Lea Schilling
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Patent number: 5904965Abstract: By achieving an extruded, foamed core formed from plastic material peripherally surrounded and integrally bonded with a cooperating synthetic, plastic, extruded, outer layer, a unique, multi-component, multi-layer synthetic closure is provided which may be employed as a bottle closure or stopper for any desired product, whether the product is a liquid, a viscous material, or a solid distributed in a bottle or container and dispensed through the open portal of the container neck. The present invention achieves a mass producible, resilient, synthetic bottle closure which is employable for any desired bottle, including wine. By employing the present invention, a multi-component or multi-layer synthetic closure is attained which possesses physical properties substantially equal to or better than the physical properties found in cork material, which has caused such cork material to be the principal closure material for wine bottles.Type: GrantFiled: September 17, 1997Date of Patent: May 18, 1999Assignee: Nomaco, Inc.Inventors: Gert Noel, Eduardo Lauer
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Patent number: 5902656Abstract: The present invention provides a damper comprising a compressible and resilient shaft and at least one constrained layer damping section attached to the exterior of the shaft via an adhesive. The damper can be compressed and inserted into a cavity or hollow in an article to be damped whereupon it can expand and provide vibration damping properties as well as optional acoustic absorbing properties. The present invention also provides the damped article and a method of damping the article.Type: GrantFiled: June 21, 1996Date of Patent: May 11, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventor: Shwi-Long Hwang
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Patent number: 5880241Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: January 24, 1996Date of Patent: March 9, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Steven Dale Ittel, Daniel Joseph Tempel
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Patent number: 5879807Abstract: graphite sheet or block anode material can be used for non-aqueous lithium secondary battery, which has the improved characteristics of battery charge-discharge, as well as a circuit substrate and a shield plate in which dopants should be intercalated. The graphite sheet or block can be made of graphitized polymer film or films and comprises: a) an electric conductive body having a surface, in which graphite crystals are oriented along the surface of the graphite sheet or block and b) interphase insertion potions uniformly distributed over the surface of the graphite sheet or block, in which graphite phases are built perpendicularly to the surface to permit dopant to be inserted into a gap between graphite phases.Type: GrantFiled: January 26, 1996Date of Patent: March 9, 1999Assignee: Matsushita Electric Industrial Co.,Ltd.Inventors: Takao Inoue, Naomi Nishiki, Junji Ikeda
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Patent number: 5876815Abstract: A laminate product having both improved grease, oil, wax and solvent repellency and improved glueability and printability properties. The laminate comprises a substrate, at least one layer of a fluorine containing polymer moiety on at least one surface of the substrate and at least one layer comprising a latex on the at least one layer of a fluorine containing polymer moiety layer. Preferably there are more than one fluorine containing polymer moiety layers. Preferably there are more than one layers comprising a latex. A container is constructed from the said laminate. A process for decreasing the contact angle of grease, oil, wax and solvent involving applying the layers to a substrate.Type: GrantFiled: January 25, 1996Date of Patent: March 2, 1999Assignee: James River Corporation of VirginiaInventors: Erland R. Sandstrom, Kenneth John Shanton, Timothy Paul Hartjes, Dean Patrick Swoboda
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Patent number: 5874166Abstract: A treated mesophase carbon fiber is disclosed having a high density of exposed edges on the fiber surface, and a method of making such a treated fiber. A carbon electrode is also described which is constructed from such treated mesophase carbon fibers. The resulting electrode, formed from such treated flexible carbon fibers, is characterized by a high density of active sites formed from such exposed edges, low corrosion, and good mechanical strength, and may be fabricated into various shapes. The treated mesophase carbon fibers of the invention are formed by first loading the surface of the mesophase carbon fiber with catalytic metal particles to form catalytic etch sites on a hard carbon shell of the fiber. The carbon fiber is then subject to an etch step wherein portions of the hard carbon shell or skin are selectively removed adjacent the catalytic metal particles adhering to the carbon shell.Type: GrantFiled: August 22, 1996Date of Patent: February 23, 1999Assignee: Regents of the University of CaliforniaInventors: Xi Chu, Kimio Kinoshita
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Patent number: 5863627Abstract: A biocompatible, biodurable polycarbonate polyurethane with internal polysiloxane segments and devices made therefrom.Type: GrantFiled: August 26, 1997Date of Patent: January 26, 1999Assignee: CardioTech International, Inc.Inventors: Michael Szycher, Donald Dempsey, Alan Edwards
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Patent number: 5855663Abstract: There are here disclosed carbon fibers for reinforcement of cement which are obtained by applying, onto the surfaces of carbon fibers, esters of oleic acid and aliphatic monovalent alcohols, esters of oleyl alcohol and monovalent fatty acids, polyoxyalkylene bisphenol ethers or polyether esters as sizing agents, and a cement composite material having a bending strength of 300 kgf/cm.sup.2 or more which contains cut carbon fibers having a fiber length of 10 to 50 mm at a mixing volume ratio of the cut carbon fibers to the cement matrix in the range of 1 to 5%. According to the present invention, there are provided the carbon fibers for reinforcement of cement which have excellent adhesive properties to the cement, good process passage properties through a direct spray gun and good bundling properties and which are suitable for a direct spray method, and the cement composite material using the carbon fibers and having high bending strength.Type: GrantFiled: June 16, 1997Date of Patent: January 5, 1999Assignees: Petoca, Ltd., Takenaka CorporationInventors: Katsumi Takano, Yasushi Katsuta, Hideyuki Nakajima, Yoshikazu Nagata, Sadatoshi Ohno, Tadahiro Kakizawa, Toshio Yonezawa, Junichi Ida, Masaki Iwata
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Patent number: 5851683Abstract: The present invention provides improved powder-free gloves having improved cleanliness as well as desired ergonomics over current natural rubber latex gloves. By controlling the formulation used to construct the gloves, a wide range of physical performance, aging resistance, as well as high cleanliness can be achieved. To this end, the present invention provides a powder-free glove constructed from a sequential copolymer. In an embodiment, the sequential copolymer is chosen from the group consisting of: poly(styrene-b-isoprene-b-styrene); poly(styrene-b-butadiene-b-styrene); poly (styrene-b-ethylene butylene-b-styrene); poly(styrene-b-ethylene propylene-b-styrene); radial and teleblock copolymers of the type (SI).sub.X, (SB).sub.X, and the like; and graft copolymers.Type: GrantFiled: March 17, 1997Date of Patent: December 22, 1998Assignee: Allegiance CorporationInventors: Sebastian S. Plamthottam, Bessie E. Callos
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Patent number: 5840424Abstract: A curable composite material has a thermosettable resin matrix and a continuous-fibre reinforcement impregnated by said matrix. The fibres of the reinforcement are sized with an aromatic thermoplastic resin, preferable selected from polysulphones, imidized polysulphones and polyisoimides.Type: GrantFiled: October 17, 1995Date of Patent: November 24, 1998Assignee: Fiberite, Inc.Inventors: Patrick Terence McGrail, Stephen Derek Jenkins
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Patent number: 5837340Abstract: A fuser system member for use in an electrophotographic apparatus for fusing toner images to a copy substrate, the fuser member having a substrate, a heat generating layer provided thereon comprising a fluorinated carbon filled fluoroelastomer, and an outer toner release layer provided on the heat generating layer.Type: GrantFiled: August 30, 1996Date of Patent: November 17, 1998Assignee: Xerox CorporationInventors: Kock-Yee Law, Ihor W. Tarnawskyj, Joseph Mammino, Kathleen M. McGrane, Martin A. Abkowitz, Robert M. Ferguson, Frederick E. Knier, Jr.
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Patent number: 5837364Abstract: Disclosed are novel ceramic matrix composites in which coated refractory fibers are imbedded in a ceramic matrix derived from a modified hydrogen silsesquioxane resin.Type: GrantFiled: October 21, 1996Date of Patent: November 17, 1998Assignee: Dow Corning CorporationInventor: Gregg Alan Zank
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Patent number: 5834114Abstract: Fiber material for adsorbing contaminants is prepared according to the steps of preparing coating a glass or mineral fiber substrate with a resin, cross-linking the resin, heating the coated fiber substrate and resin to carbonize the resin, and exposing the coated fiber substrate to an etchant to activate the coated fiber substrate.Type: GrantFiled: May 31, 1995Date of Patent: November 10, 1998Assignee: The Board of Trustees of the University of IllinoisInventors: James Economy, Michael Daley
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Patent number: 5830551Abstract: A method for manufacturing a tile having a desired pattern. The pattern goes through the tile in the thickness direction. For manufacturing such a tile, e.g. a partition plate 84 is disposed in a pressure forming die 91 so as to divide its inside space into an outer forming space 95 and an inner forming space 96. Light black granules and light red granules are filled respectively in the outer and inner forming spaces 95, 96. Then, the partition wall 84 is taken out from the die 91, and lining granules are filled over the colored granules. Thereafter, they are pressed into one body and burned.Type: GrantFiled: November 13, 1995Date of Patent: November 3, 1998Assignee: Mino Ganryo Kagaku CorporationInventors: Yoshinori Kakamu, Shinichi Kakamu, Shukichi Kakamu
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Patent number: 5830946Abstract: A rubber composition comprises a hydrogenated NBR, zinc dimethacrylate, zinc diacrylate, or an admixture thereof, an epoxy compound and an organic peroxide vulcanizer. A hose is also provided, comprising an inner tube, a reinforcement layer and an outer tube, at least the inner tube being formed from the above rubber composition.Type: GrantFiled: October 22, 1996Date of Patent: November 3, 1998Assignee: The Yokohama Rubber Co., Ltd.Inventors: Ozamu Ozawa, Katsuki Hayashida, Tomoji Saitoh
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Patent number: 5827584Abstract: An injection molded article for photographic photosensitive materials is disclosed, which is formed of a noncrystalline resin composition containing 50 wt % or more of a noncrystalline resin having a melt flow rate of from 1 to 60 g/10 min, a flexural modulus of elasticity of 20,000 kg/cm.sup.2 or more and a thermal deformation temperature of 70.degree. C. or higher, from 0.1 to 45 wt % of one or more of a rubbery material, a thermoplastic elastomer and an ethylene copolymer resin, from 0.01 to 49.9 wt % of one or more of a light-shielding material and a fibrous filler and from 0.001 to 20 wt % of one or more of an antioxidant, an age resistor, an ultraviolet absorbent, a fatty acid metal salt, a radical scavenger, a hydrate double salt compound and an oxidation inhibitory synergistic effect-providing agent. Also disclosed are a method for forming the injection molded article for photographic photosensitive materials and a package using the injection molded article for photographic photosensitive materials.Type: GrantFiled: October 27, 1995Date of Patent: October 27, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Mutsuo Akao, Osamu Suzuki
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Patent number: 5824372Abstract: A copolymer having units of Formula II: ##STR1## wherein M is H, alkali metal, anmonium cation, or a mixture thereof;N is OM or a mixture of OM, OR, and NR.sub.1 R.sub.2 in a molar ratio of (OM):(OR):(NR.sub.1 R.sub.2) of ?1-(e+f)!:e:f, wherein e and f are each independently 0 to 0.5, provided that (e+f) is less than 0.8;R, R.sub.1, and R.sub.2 are each independently H or a branched or straight chain C.sub.1-20 alkyl;Y is a C.sub.2-10 alkyl, C.sub.6-12 aryl, or C.sub.4-12 alkoxy;X is a fluorinated thiol radical;Z is H; andv and w are each a positive number such that the molar ratio of v to w is from about 0.4:1 to about 1.3:1 is disclosed.Type: GrantFiled: September 25, 1997Date of Patent: October 20, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Engelbert Pechhold
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Patent number: 5817413Abstract: A high shear adhesive tape having an adhesive layer containing a rubber mix and at least one tackifier agent, the rubber mix including an effective amount of a crosslinked halogenated butyl rubber, the remaining rubber in the mix being non-crosslinked, the non-crosslinked rubber preferably being butyl rubber, the adhesive layer further being characterized as being free of any crosslinking agent for the remaining rubber in the mix; and pipewrap systems employing this tape.Type: GrantFiled: May 20, 1997Date of Patent: October 6, 1998Assignee: Nyacol Products, Inc.Inventors: Elwyn G. Huddleston, Scott C. Barnes, Rosana Bianchini
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Patent number: 5814403Abstract: A computer model calculates a critical aspect ratio for a discontinuous fiber composite having fibers dispersed in a matrix. The critical aspect ratio is a function of the elastic modulus and the cohesive energy of the fiber and the matrix. The composite incorporates physical features such as fiber shape features or additives in the fiber or matrix which adjust the elastic modulus and/or cohesive energy of the fiber, of the matrix or both to a value different than the corresponding value for unmodified fiber material or matrix material. These adjustments are selected so that the critical aspect ratio for the material including the modifications will be less than the corresponding critical aspect ratio for the material without the modifications. The resulting composite provides enhanced load sharing between fiber and matrix.Type: GrantFiled: January 28, 1993Date of Patent: September 29, 1998Assignee: Exxon Research and Engineering CompanyInventors: Michael P. Anderson, Liza M. Monette, John P. Dismukes, Shiun Ling, David J. Srolovitz
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Patent number: 5814386Abstract: The inventions relate to the field of machine manufacturing and more specifically, to shell-type construction of base members used in aviation engineering and rocketry, which operate under conditions of combined stressed state, to the methods of and mandrels for their manufacture.A load-carrying tube-shell comprises a cellular framework 1 made of spiral and annular strips 4, 5 crossing each other to define layers 3 of systems repeated over the thickness of the wall thereof so that stiffening ribs 6, 7 with criss-crosses 8, 9, 10 are thus formed, and outer coating layers 2 respectively made of unidirectional filaments 11 bound by a cured polymeric binder 12. Damping-absorbing layers 14 of resilient-elastic material such as rubber or polyurethane are disposed between the layers 3.A method of the manufacture of the tube-shell comprises a step of introducing intermediate continuous forming strips 20 placed beneath the layers 4, 5 laid down under tension.Type: GrantFiled: November 25, 1996Date of Patent: September 29, 1998Assignees: McDonnell Douglas Corporation, Crismb-CatInventors: Valery Vitalievich Vasiliev, Vladimir Alexandrovich Bunakov, Alexandr Fredeorovich Razin, Mikhail Sergeevich Artjukhov
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Patent number: 5804260Abstract: A sponge is provided which completely surrounds and envelopes a wall mounted soap bar holder or dish. The sponge has a top portion with a shaped aperture or depression to receive a bar of soap of a generally similar shape. The sponge also includes an opening or aperture on one of its sides which would receive the cantilevered element or tongue of the soap dish. The opening may extend up to and including the length of the side of the sponge in order to accommodate a similarly sized wall mounted soap bar holder. The opening would extend or penetrate through a portion of the sponge to fully enclose the wall mounted soap bar dish's cantilevered element. The sponge may be provided in any shape, and preferably may have the appearance of a geometric shape, seashell or other animal. The sponge may appear in any color. The sponge material may be provided in a range of porosities depending on size and application.Type: GrantFiled: June 25, 1996Date of Patent: September 8, 1998Inventor: Robert Stafford
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Patent number: 5804269Abstract: A hose useful for handling low temperature fluids such as refrigerants is disclosed, which exhibits excellent resistance to ozone and moisture permeation. A cover or outermost tube of the hose is formed from a vulcanizate of a rubber composition comprising a first copolymer rubber having an isobutylene unit and a p-halogenated methylstyrene unit and/or a second copolymer rubber having an isobutylene unit, a p-halogenated methylstyrene unit and a p-methylstyrene unit.Type: GrantFiled: May 5, 1992Date of Patent: September 8, 1998Assignee: The Yokohama Rubber Co., Ltd.Inventors: Osamu Ozawa, Tetsu Kitami
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Patent number: 5798158Abstract: A layered molding and method for making the same which has excellent antipermeability to gasoline. The layered molding is defined by a fluoroplastic and an epichlorohydrin rubber. The fluoroplastic is a copolymer formed from at least two precursors selected from the group consisting of hexafluoropropylene, tetrafluoroethylene, and vinylidene fluoride, which are selected within a plotted range to preferably form a binary or tertiary composition. The epichlorohydrin rubber contains organic phosphonium. The resulting layered molding does not require an adhesive agent.Type: GrantFiled: October 25, 1995Date of Patent: August 25, 1998Assignee: Toyoda Gosei Co., Ltd.Inventors: Masaki Koike, Atsushi Suzuki, Daisuke Tsutsumi, Masayoshi Ichikawa
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Patent number: 5795635Abstract: An oil hose comprised of (i) an inner layer made of a vulcanized hydrogenated nitrile rubber composition, an intermediate layer made of a vulcanized unsaturated nitrile-conjugated diene copolymer rubber composition, and an outer layer made of a vulcanized ozone-resistant rubber composition, or (ii) an inner layer made of a vulcanized rubber composition comprising a hydrogenated copolymer rubber composed of an unsaturated nitrile, a conjugated diene and a copolymerizable ethylenically unsaturated monomer, and an outer layer made of a vulcanized ozone-resistant rubber composition. This hose has good oil resistance, thermal resistance and copper ion resistance, and caulking in the portion thereof connected to a copper pipe is strong and oil leakage at a low temperature is prevented.Type: GrantFiled: January 5, 1995Date of Patent: August 18, 1998Assignee: Nippon Zeon Co., Ltd.Inventor: Yasunori Iwasaki
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Patent number: 5792531Abstract: An elastomeric article such as a glove includes a substrate body made of an styrene-ethylene-butylene-styrene block copolymer, and a donning layer overlying at least one side of the substrate body. The donning layer is formed of a chlorinated styrene-isoprene, preferably having a polystyrene block content of from about 10 to about 20 percent by weight of the total copolymer weight and an end block polystyrene molecular weight of at least about 5,000. Optionally, a surfactant-containing layer may be present over the donning layer to further improve the donning characteristics. The article is preferably prepared by dip forming the article from an styrene-ethylene-butylene-styrene block copolymer, coating the article with a solution of the styrene-isoprene block copolymer, removing the solvent, and chlorinating the styrene-isoprene block copolymer.Type: GrantFiled: February 20, 1996Date of Patent: August 11, 1998Assignee: Tactyl Technologies, Inc.Inventors: Kermit R. Littleton, Garth Brown, Sebastian Plamthottam
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Patent number: 5783272Abstract: A thin, tacky, non-pourable film of incompatible in situ-expandable thermoplastic particles and thermosettable matrix resin that contains an essentially uniform density and thickness across the breadth of the film. The in situ-expandable mass is not pourable yet can be easily dispensed in a uniform manner within a mold and thereafter expanded to the dimensions of the mold. Composites and reinforced compositions, as well as methods of molding, are disclosed.Type: GrantFiled: February 5, 1996Date of Patent: July 21, 1998Assignee: Dexter CorporationInventor: Raymond S. Wong