Asbestos Dnrm Patents (Class 524/452)
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Patent number: 4788241Abstract: Tires possessing a tread composition formed by curing a blend comprised of: (A) at least one suitable rubber; (B) an effective amount of curative; (C) carbon black; and (D) a processing aid comprised of (i) C.sub.12 -C.sub.50 paraffin wax; and (ii) pentaerythritol tetrastearate, which processing aid preferably further comprises a carrier such as calcium carbonate are most easily processed and exhibit improved handling, durability and rolling resistance as well as reduced heat buildup.Type: GrantFiled: October 22, 1987Date of Patent: November 29, 1988Assignee: Uniroyal Chemical Company, Inc.Inventors: Robert J. Cornell, Sung W. Hong
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Patent number: 4760109Abstract: The subject invention relates to novel resin compositions comprising polytetramethylene adipamide and polyarylene sulfide, that are superior in mechanical strength, rigidity chemical resistance, heat resistance and moldability.Type: GrantFiled: July 15, 1986Date of Patent: July 26, 1988Assignee: Stamicarbon B. V.Inventor: Kazumasa Chiba
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Patent number: 4753980Abstract: Toughened thermoplastic polyester compositions comprising 60-97 weight % of a polyester matrix resin and 3-40 weight % of an ethylene copolymer such as ethylene/methylacrylate/glycidyl methacrylate.Type: GrantFiled: November 14, 1986Date of Patent: June 28, 1988Assignee: E. I. Du Pont de Nemours & CompanyInventor: Edward J. Deyrup
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Patent number: 4749598Abstract: The surface smoothness and adhesion to metal of poly(arylene sulfide) is improved by the addition of an effective amount of a silica composition.Type: GrantFiled: February 19, 1987Date of Patent: June 7, 1988Assignee: Phillips Petroleum CompanyInventor: Dawn E. Miles
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Patent number: 4720516Abstract: A polyolefin resin composition comprising a polyolefin modified with an unsaturated carboxylic acid, at least one member selected from the group consisting of polyepoxides, polyisocyanates, and polyamines, and a reinforcement.Type: GrantFiled: December 16, 1982Date of Patent: January 19, 1988Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kazuo Kishida, Isao Sasaki, Hiroshi Mori, Yasuaki Ii
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Patent number: 4668729Abstract: The present invention concerns a process for a thin sheet molding of a thermoplastic resin easily and economically and also the thin oriented sheet molding prepared by such a process. Its specific feature resides in the steps of lubricating the inner surface of die, laying over one another thermoplastic resin blanks while being not adhered to each other in a die, compressing the layered structure at a temperature higher than the glass transition temperature of the thermoplastic resin blanks and separating the oriented molded products from each other.Type: GrantFiled: December 14, 1984Date of Patent: May 26, 1987Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventor: Hiroshi Kataoka
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Patent number: 4665120Abstract: A blend of fluorocarbon polymers for incorporation into an asbestos fiber slurry for forming into a diaphragm is disclosed. The blend comprises fluorocarbon polymer fibers and fluorocarbon polymer chunks of certain sizes in certain weight ratios. Also disclosed is a diaphragm comprised of the asbestos and two types of fluorocarbon polymers, as well as a method of making same.Type: GrantFiled: December 9, 1985Date of Patent: May 12, 1987Assignee: ELTECH Systems CorporationInventors: Louis W. Hruska, Shan-Pu Tsai
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Patent number: 4659754Abstract: Polymer-fibre mixtures with improved homogeniety of dispersion of fibres throughout the polymer matrix are prepared from fibres prior mixed or coated with a plasticizer which is compatible with both the fibre and the polymer matrix. Then the plasticizer-fibre combination can be mixed into the polymer matrix, using standard polymer mixing equipment and for reasonable lengths of time, to produce a mixture in which agglomerations of fibres are very materially reduced. A preferred fibre is a fibrillated aramid fibre, dispersion of which in polymers has previously caused particular difficulties. Suitable polymers include hydrocarbon elastomers such as SBR, for use with which an aromatic mineral oil is a preferred plasticizer, and oil-resistant NBR elastomers, for use with which an ester plasticizer such as dioctyl phthalate is preferred.Type: GrantFiled: November 18, 1985Date of Patent: April 21, 1987Assignee: Polysar LimitedInventors: Douglas C. Edwards, James A. Crossman
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Patent number: 4599374Abstract: Solvent resistant, vulcanizable silicone rubber compositions are improved by using a class of hydrosiloxy (silicon hydride) polymer cross-linking agents in a blend of a vinyl-containing polymer, a suitable catalyst and a siloxane resin. One hydrosiloxy polymer cross-linking agent is a copolymer having about 0.75 to about 3.0 moles of R.sub.2 HSiO.sub.0.5, about 0.37 to about 1.5 moles of R"SiO.sub.1.5, and about 0.5 to about 1.5 moles of SiO.sub.2, wherein R is selected from the group consisting of alkyl radicals of 1 to about 8 carbon atoms and phenyl; and R" is a (--CH.sub.2 --).sub.a R' radical where R' is perfluoroalkyl of 1 to about 8 carbon atoms, a is at least 2 but less than 10, and (--CH.sub.2 --) is straight or branched chain; and the copolymer has a viscosity of about 30 to about 4,000 centipoise at 25.degree. C.Type: GrantFiled: September 2, 1982Date of Patent: July 8, 1986Assignee: General Electric Co.Inventor: Ben A. Bluestein
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Patent number: 4588758Abstract: A tire sealant composition for injection into pneumatic tires is provided. The tire sealant composition promotes heat transfer in a rolling tire, thereby keeping the tire somewhat cooler; it assists in balancing the wheel and tire, thereby prolonging the life of the tire and precluding unnecessary unevenness of wear of the tire; and the tire sealant composition serves to seal the tire around the wheel rim and particularly in the tread area of the tire against punctures. The composition includes a thickener and binding agent, asbestos fibers, ethylene glycol, hydrocarbon process oil, a detergent as a wetting agent and emulsifier, sodium bicarbonate, and water.Type: GrantFiled: March 13, 1985Date of Patent: May 13, 1986Inventor: Lawrence E. Jaspon
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Patent number: 4587278Abstract: Sound-insulating boards which are based on mineral fibers and thermoplastic binders and may or may not additionally contain fillers, flameproofing agents and water repellants contain, as the binder, from 4 to 20%, based on the weight of the mineral fibers, of polymers having a glass transition temperature of from 30.degree. to 80.degree. C. and consisting of not less than 60% by weight, based on the copolymer, of (meth)acrylates of 1 to 4 carbon atoms and as much as 40% by weight of acrylonitrile and/or styrene.Type: GrantFiled: April 12, 1984Date of Patent: May 6, 1986Assignee: BASF AktiengesellschaftInventors: Bernhard Dotzauer, Hans Kast, Gernot Franzmann, Gregor Ley, Wilhelm F. Beckerle, Wolfgang Schilder
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Patent number: 4567229Abstract: Polyphosphazenes containing 20-80 mole percent phenoxy, 20-80 mole percent alkylphenoxy and 2-30 mole percent alkoxy substituents possess low glass transition temperature while still exhibiting good smoke values in standard tests.Type: GrantFiled: December 18, 1984Date of Patent: January 28, 1986Assignee: Ethyl CorporationInventors: F. Alexander Pettigrew, Harold R. Penton
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Patent number: 4552917Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified urethane oligomer containing terminal ethylenic unsaturation and a free radical catalyst. In a preferred embodiment, the polymer composition further includes at least one additional component selected from a reinforcing agent and a filler; the cured composition demonstrates enhanced impact properties and is particularly useful in automotive body constructions.Type: GrantFiled: October 24, 1983Date of Patent: November 12, 1985Assignee: Olin CorporationInventors: James M. O'Connor, Donald L. Lickei, Michael L. Rosin
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Patent number: 4550130Abstract: A polyolefin resin composition comprising a polyolefin modified with an unsaturated carboxylic acid, at least one member selected from the group consisting of polyepoxides, polyisocyanates, and polyamines, and a reinforcement.Type: GrantFiled: February 28, 1984Date of Patent: October 29, 1985Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kazuo Kishida, Isao Sasaki, Hiroshi Mori, Yasuaki Ii
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Patent number: 4544730Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified urethane oligomer containing terminal ethylenic unsaturation and a free radical catalyst. In a preferred embodiment, the polymer composition further includes at least one additional component selected from a reinforcing agent and a filler; the cured composition demonstrates enhanced impact properties and is particularly useful in automotive body constructions.Type: GrantFiled: November 2, 1984Date of Patent: October 1, 1985Assignee: Olin CorporationInventors: James M. O'Connor, Donald L. Lickei, Michael L. Rosin
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Patent number: 4543377Abstract: A process is provided for the incorporation of fibrous material into a polymer wherein the fibrous material as a dispersion in water is added to a solution of the polymer which is being subjected to agitation, whereby the fibrous material transfers from the aqueous phase to the polymer solution, and the polymer-fibrous material mixture is recovered.Type: GrantFiled: June 4, 1984Date of Patent: September 24, 1985Assignee: Polysar LimitedInventor: James A. Crossman
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Patent number: 4536531Abstract: A polyester resin composition having excellent molding mobility and crystallizing property, comprises (A) at least one thermoplastic polyester resin selected from polyethylene terephthalate resins and polybutylene terephthalate resins; (B) a polycaprolactone having a number average molecular weight of from 200 to 2,000 in an amount of 0.1 to 30 parts by weight per 100 parts by weight of the polyester resin, in which polycaprolactone molecules, at least 50% of the terminal radicals thereof, are modified to be non-reactive, (C) 0.01 to 10 parts by weight of a crystal nucleating agent per 100 parts of the polyester resin, and optionally, (D) at least one additive selected from fillers and specific phosphorous compounds which may be in combination with a specific epoxy compound, the polyester resin composition being useful for producing a molded product having an excellent dimensional stability and mechanical strength.Type: GrantFiled: May 19, 1983Date of Patent: August 20, 1985Assignee: Teijin LimitedInventors: Yoshinari Ogawa, Noriyuki Akagi
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Patent number: 4522969Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified polyurethane oligomer containing terminal ethylenic unsaturation, a free radical generating catalyst, and at least one additional component selected from a reinforcing agent and a filler. The cured composition demonstrates desirable impact properties and is particularly useful in automotive body constructions.Type: GrantFiled: March 20, 1984Date of Patent: June 11, 1985Assignee: Olin CorporationInventors: James M. O'Connor, Donald L. Lickei, Michael L. Rosin
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Patent number: 4489190Abstract: A polymer blend which is capable of exhibiting an anisotropic melt phase and the ability to form shaped articles having satisfactory mechanical properties is provided. The polymer blend comprises approximately 5 to approximately 75 percent by weight, based upon the total weight of the blend, of a polyalkylene terephthalate wherein the alkylene units contain 2 to 5 carbon atoms and approximately 25 to approximately 95 percent by weight, based upon the total weight of the blend, of a melt processable wholly aromatic polyester which is capable of forming an anisotropic melt phase apart from the blend.Type: GrantFiled: June 11, 1980Date of Patent: December 18, 1984Assignee: Celanese CorporationInventor: Michael F. Froix
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Patent number: 4489181Abstract: Compositions of an aromatic polycarbonate, a polysulfone carbonate and a filler are disclosed which have good electrical properties, high modulus and molten solder resistance.Type: GrantFiled: November 7, 1983Date of Patent: December 18, 1984Inventors: Daniel W. Fox, Robert R. Gallucci, Edward N. Peters, Gary F. Smith
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Patent number: 4483958Abstract: A thermoplastic polymer composition having well-balanced physical properties, especially impact strength and gloss, is provided, which comprises an aromatic polyether resin, a styrene polymer and/or a rubber-enforced styrene polymer containing a cross-linked conjugated diolefin polymer in a dispersed island state, an inorganic filler, and a thermoplastic elastomer selected from styrene-conjugated diolefin copolymers and styrenic polymer grafted polyolefin.Type: GrantFiled: May 4, 1983Date of Patent: November 20, 1984Assignee: Asahi-Dow LimitedInventors: Nobutoshi Kosaka, deceased, Shinichi Izawa, Jun Sugiyama
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Patent number: 4480005Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 20 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.Type: GrantFiled: September 6, 1983Date of Patent: October 30, 1984Assignee: Shell Oil CompanyInventor: Thomas F. Brownscombe
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Patent number: 4451537Abstract: A crysotile asbestos base material having an organo-silane outer coating bonded thereto.Type: GrantFiled: June 30, 1981Date of Patent: May 29, 1984Assignee: Union Carbide CorporationInventors: Robert J. Kennedy, Sr., Robert J. Kennedy, Jr., Sundaresan Ramachandran
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Patent number: 4439576Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified polyurethane oligomer containing terminal ethylenic unsaturation, a free radical generating catalyst, and at least one additional component selected from a reinforcing agent and a filler. The cured composition demonstrates desirable impact properties and is particularly useful in automotive body constructions.Type: GrantFiled: September 29, 1981Date of Patent: March 27, 1984Assignee: Olin CorporationInventors: James M. O'Connor, Donald L. Lickei, Michael L. Rosin
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Patent number: 4439577Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified polyurethane oligomer containing terminal ethylenic unsaturation and a free radical generating catalyst. In a preferred embodiment, the polymer composition further includes at least one additional component selected from a reinforcing agent and a filler.Type: GrantFiled: April 1, 1982Date of Patent: March 27, 1984Assignee: Olin CorporationInventors: James M. O'Connor, Donald L. Lickei, Michael L. Rosin
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Patent number: 4405727Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 30 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.Type: GrantFiled: August 25, 1981Date of Patent: September 20, 1983Assignee: Shell Oil CompanyInventor: Thomas F. Brownscombe
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Patent number: 4397982Abstract: Novel thermoplastic molding compositions of a polycarbonate, a linear low density polyolefin, a multiphase composite interpolymer of an acrylate and a methacrylate are disclosed which have good impact strengths and reprocessability.Type: GrantFiled: October 30, 1981Date of Patent: August 9, 1983Assignee: General Electric CompanyInventors: Omar M. Boutni, Ping Y. Liu
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Patent number: 4350723Abstract: A peel-up type adhesive having a viscosity of 50 to 5,000 poises and comprising a rubber latex or a resin emulsion containing a polymeric substance which is film-forming at room temperature, and 1 to 200 parts by weight, per 100 parts by weight of the solid polymeric substance content of the rubber latex or resin emulsion, of a fibrous material.Type: GrantFiled: January 26, 1981Date of Patent: September 21, 1982Assignee: Nippon Zeon Co. Ltd.Inventors: Takaaki Sugimura, Yutaka Ozawa, Mari Takahashi
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Patent number: 4324706Abstract: A friction material having an excellent heat-resistance, comprises 5 to 70% by weight of pulp-like particles consisting essentially of a heat-resistant aromatic polymeric material; 1 to 70% by weight of a fibrous material comprising at least one member selected from inorganic fibrous materials and heat-resistant organic fibrous materials; 1 to 35% by weight of a friction-regulating agent and; 5 to 40% by weight of a thermosetting polymeric resin.Type: GrantFiled: January 14, 1981Date of Patent: April 13, 1982Assignees: Teijin Limited, Adebono Brake Industry Co., Ltd.Inventors: Yutaka Tabe, Hiromitsu Takamoto, Keizo Shimada, Yasusaburo Sugita
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Patent number: 4322320Abstract: Process for preparing platinum catalyzed SiH-olefin silicone compositions using hydroperoxy-containing inhibitors.Type: GrantFiled: April 28, 1980Date of Patent: March 30, 1982Assignee: General Electric CompanyInventor: Joseph C. Caprino
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Patent number: 4318959Abstract: A profound improvement in the properties and capabilities of elastomeric polyurethane joint sealing compositions is achieved by incorporating a fibrillated polyolefin of high surface area which is rendered compatible by combining it with effective stabilizing cofillers, such as titanium dioxide, calcium carbonate, carbon black, fibrous talc, serpentine, kaolin, or various other metal silicate fillers. Such cofillers are capable of improving compatibility and stabilizing the sealant mixture so that unacceptable sweat out or exudation of liquid is prevented and so that the outer surface of the applied sealant has an acceptable surface quality after curing.Type: GrantFiled: July 3, 1979Date of Patent: March 9, 1982Inventors: Robert M. Evans, Thomas M. Leonard
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Patent number: 4317765Abstract: Hydroxyl-containing filler reinforced thermoplastic polymers, such as polyolefins, are disclosed having improved physical properties such as impact strength, break strength and flexural modulus. The filler is compatibilized with a thermoplastic polymer containing labile atoms by mixing the two together in the presence of a coupling agent, such as maleic anhydride and a free radical initiator such as a peroxide catalyst. In a preferred embodiment, clay is coated with polyethylene by mixing the two in the presence of a peroxide catalyst and maleic anhydride and the coated filler is then compounded with additional polyethylene. In another preferred embodiment, a filler is coated with a polyolefin having a high melt index and the coated filler is then compounded with a polyolefin having a lower melt index. Also disclosed are various means for molding the compatibilized composites of this invention.Type: GrantFiled: January 26, 1977Date of Patent: March 2, 1982Assignee: Champion International CorporationInventor: Norman G. Gaylord