With Solid Polymer Derived From At Least One Reactant Wherein At Least One Of The Reactants Forming The Solid Polymer Is A Phenol Or Inorganic Phenolate; Or With Spfi Or Sicp Derived From Phenol Or Inorganic Phenolate Wherein At Least One Of The Necessary Reactants Is Saturated Patents (Class 524/508)
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Patent number: 4948838Abstract: The invention concerns thermoplastic molding materials comprising a polyphenylene ether, a graft polymer with a hydrocarbon resin as the principal chain and polyphenylene ether side chains, a functionalized polyethylene, a polyamide and optionally other polymers. Molded parts made from these polymer mixtures have improved impact strengths and dimensional stabilities at elevated temperatures.Type: GrantFiled: May 4, 1988Date of Patent: August 14, 1990Assignee: Huls AktiengesellschaftInventors: Hans Jadamus, Martin Bartmann
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Patent number: 4948833Abstract: An olefinic resin composition for molding, which comprises an olefinic resin, inorganic particles in rod shape and inorganic particles of planar crystalline structure respectively in 10 to 90% by volume, 3 to 60% by volume and 5 to 55% by volume based on the composition. A molded article made of such a composition is low in friction coefficient and high in mechanical strength. When this composition is incorporated with a synthetic resin having a higher hardness than the olefinic resin, the resultant molded article is enhanced in endurance on sliding. The resulting composition is suitable for manufacturing of a sliding member such as a tape guide.Type: GrantFiled: May 17, 1989Date of Patent: August 14, 1990Assignee: Hitachi Maxell, Ltd.Inventors: Tatsuo Araki, Keisuke Okushiro
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Patent number: 4945018Abstract: Curable flame retardant mixtures of a polyolefin (non-rubbery), a polyphenylene ether resin, an aromatic phosphate, a brominated compound or polymer, and a crosslinking agent are described. Electrically conductive articles having insulation material made of the composition and methods for preparing such articles are also disclosed.Type: GrantFiled: February 27, 1989Date of Patent: July 31, 1990Assignee: General Electric CompanyInventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
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Patent number: 4945126Abstract: Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing about 1 to 30 weight percent of the novel lubricant or lubricant blend have greatly improved friction and wear properties, including lower coefficients of friction and increased surface wear resistence. The polyolefin does not remain as discrete, identifiable particles after mixing with the polymer matrix, and has an average molecular weight of less than 500,000.Type: GrantFiled: February 2, 1987Date of Patent: July 31, 1990Assignee: ICI Americas Inc.Inventors: Jane M. Crosby, John E. Theberge
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Patent number: 4942206Abstract: Polymer blends and copolymers made therefrom, of anhydride-functionalized polyphenylene ether and polyetherimide. The components of the blends have improved compatibility, resulting in more homogeneous blends. The blends exhibit good mechanical properties and are suitable for forming films, molded products and other useful articles of manufacture. The copolymers have utility as compatibilizers for blends of polyphenylene ether and polyetherimide.Type: GrantFiled: June 21, 1988Date of Patent: July 17, 1990Assignee: General Electric CompanyInventors: Dwain M. White, Laura A. Socha, Roelof Van Der Meer
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Patent number: 4923920Abstract: This invention relates to mixtures of at least one elastomer latex with at least one dispersion of an aromatic polycarbonate, aromatic polyester or aromatic polyester carbonate.Type: GrantFiled: June 20, 1988Date of Patent: May 8, 1990Assignee: Bayer AktiengesellschaftInventors: Thomas Scholl, Hermann Perrey, Martin Matner
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Patent number: 4912166Abstract: A blend of tetrafluoroethylene and a poly(oxy-p-phenyleneisophthaloyl-phenylene/oxy-p-phenyleneterephthaloyl- p-phenylene) (PEKK) results in improved processing of the fluoroelastomer at temperatures below the melting temperature of the PEKK and improves physical properties of cured fluoroelastomer.Type: GrantFiled: October 26, 1988Date of Patent: March 27, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Charles W. Stewart
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Patent number: 4910241Abstract: Flame retardant crosslinking admixtures of an olefinic rubber, a polyphenylene ether resin, an aromatic phosphate, a crosslinking agent, and optionally a stable brominated material are described. Electrically conductive articles, such as wires and cables, in which the compositions are incorporated as insulation material, and methods for their preparation, are also disclosed.Type: GrantFiled: August 25, 1983Date of Patent: March 20, 1990Assignee: General Electric CompanyInventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
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Patent number: 4910081Abstract: A thermal transfer recording ink composition comprises a resin having a melting point according to JIS-K0064 of 55.degree. to 110.degree. C. and a solidification point according to JIS-K0064 being at least 50.degree. C. lower than the melting point, resin particles having a size of 0.05 to 2.0 microns and a coloring matter. It is coated on film and used repeatedly.Type: GrantFiled: September 14, 1988Date of Patent: March 20, 1990Assignee: Kao CorporationInventors: Shinichiro Yamaguchi, Shiro Kawahito, Hiroshi Yashima, Ryuma Mizushima
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Patent number: 4904733Abstract: The invention relates to a process for the production of molding compositions from a thermoplastic polycondensation resin susceptible to degradation at high temperature in the presence of H.sub.2 O, to which is admixed a second synthetic resin, present as an aqueous latex, at temperatures in the range of 150.degree.-300.degree. C. and under a pressure in the range of 1-100 bar under the effect of high shear forces, for a time sufficient to provide the desired molding composition without substantially degrading the polycondensation resin.Type: GrantFiled: December 16, 1987Date of Patent: February 27, 1990Assignee: Huels AktiengesellschaftInventors: Christian Gerth, Michael Droscher
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Patent number: 4900768Abstract: Flame retardant mixtures of a polyphenylene ether resin, an alkenyl aromatic elastomer, an organic phosphate flame retardant agent and a crosslinking agent are described. They are curable by heating or by exposure to high energy radiation. Articles such as electrical wires and cables comprising insulation made of the composition, and a method of their production, are also disclosed.Type: GrantFiled: April 2, 1986Date of Patent: February 13, 1990Assignee: General Electric CompanyInventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
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Patent number: 4897439Abstract: A coating composition comprising a major amount of resin and a minor amount of a property-improving additive,said resin being:(A) a fluorocarbon resin selected from the group consisting of (1) perfluoroalkoxy tetrafluoroethylene copolymer resin (PFA), (2) ethylenechlorotrifluoroethylene copolymer resin (E-CTFE), (3) ethylenetetrafluoroethylene copolymer resin (E-TFE), (4) poly(vinylidine fluoride) resin (PVDF), (5) tetrafluoroethylene-hexafluoropropylene copolymer resin (FEP), (6) poly(chlorotrifluoroethylene) resin (CTFE), or a mixture of two or more of said fluorocarbon resins; or(B) a polyether resin selected from the group consisting of (7) polyethersulfone resin (PES), (8) polyether ketone resin (PEK) and (9) polyether ether ketone resin (PEEK) or a mixture of two or more of said polyether resins;said additive being:(C) a poly(phenylene sulfide) (PPS); or(D) an inorganic crystalline ceramic powder and/or fluorocarbon resin when said resin is a polyether of (B) above; or(E) an inorganic material selectedType: GrantFiled: June 30, 1987Date of Patent: January 30, 1990Assignee: Edlon Products, Inc.Inventors: Steven E. Rau, Robert Roberts, Kevin P. Pochopien, Charles W. Paul, Royce A. Butler, Allan J. Mackinlay, Harris L. Morris, Raymond J. Weinert
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Patent number: 4894423Abstract: Environmental stress failure resistant and impact resistant polycarbonates useful for producing molded plastic components are prepared from an aromatic polycarbonate and a copolymer of ethylene and carbon monoxide.Type: GrantFiled: November 7, 1988Date of Patent: January 16, 1990Assignee: The Dow Chemical CompanyInventors: Hani Farah, Chai J. Chou, Stephen M. Hoenig
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Patent number: 4892904Abstract: The flexural modulus and heat distortion temperature of environmentally tough, compatible blends of polyphenylene ether resin, poly(alkenyl aromatic) resin, polyolefin resin and an alkenyl aromatic-based compatibilizer are improved by the inclusion in the blend of minor amounts of fibrous glass, as described. The compositions are injection moldable into various shaped articles.Type: GrantFiled: June 27, 1988Date of Patent: January 9, 1990Assignee: General Electric CompanyInventor: Sai-Pei Ting
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Patent number: 4883835Abstract: This invention relates to mixtures of polycarbonates with graft polymers and copolymers which have been rendered flame resistant and which are characterized by containing modified polyalkylene ethers as antistatic agents.Type: GrantFiled: March 31, 1988Date of Patent: November 28, 1989Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Buysch, Norbert Schon, Hans-Jurgen Kress, Herbert Eichenauer, Josef Buekers
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Patent number: 4879338Abstract: This invention discloses novel composition comprising a blend of a poly(aryl ether ketone) and from about 1% to about 50% of poly(phenylene oxide). The blends have high use temperatures, abraision resistance and solvent resistance, and are extrudable. Further, the blends can be crosslinked.Type: GrantFiled: February 13, 1985Date of Patent: November 7, 1989Assignee: Raychem CorporationInventors: Frank W. Mercer, Michael F. Froix, Tai C. Cheng
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Patent number: 4874810Abstract: Reinforced thermoplastic compositions comprised of compatible combinations of a polyphenylene ether resin, polyamide resin, and glass fibers can be impact modified with a modifying agent comprising a partially hydrogenated diblock copolymer of styrene and ethylene/propylene which result in molding compositions having improved thermal aging characteristics.Type: GrantFiled: March 6, 1987Date of Patent: October 17, 1989Assignee: General Electric CompanyInventors: Gim F. Lee, Jr., Jean M. Heuschen, Roelof Van Der Meer
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Patent number: 4873277Abstract: An aromatic carbonate resin composition exhibiting improved impact properties comprised of:(i) at least one aromatic carbonate resin;(ii) at least one effective amount of at least one impact modifier; and(iii) an amount effective to improve the impact properties of (i) and (ii) but insufficient to substantially deleteriously affect, to a substantial degree, most of the advantageous properties thereof of at least one aliphatic sulphonate.Type: GrantFiled: October 31, 1986Date of Patent: October 10, 1989Assignee: General Electric CompanyInventor: Omar M. Boutni
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Patent number: 4855001Abstract: A one-component heat stable, adhesive for metal surfaces such as iron, zinc, copper, cadmium and their alloy will cure upon contact with the metal surface. The adhesive composition includes olefinically unsaturated monomer; at least one phenoxy resin together with other reactive or non-reactive polymers; an acidic material; a compound containing sulfonyl halide group; and a compound containing a transition metal, in particular TiO.sub.2. The adhesive composition cures rapidly upon contact with a metal surface to form an adhesive bond between the surfaces. The adhesive composition is especially useful as an adhesive for galvanized steel parts subjected to elevated paint curing temperatures.Type: GrantFiled: February 10, 1987Date of Patent: August 8, 1989Assignee: Lord CorporationInventors: Dennis J. Damico, Ruth M. Bennett
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Patent number: 4849293Abstract: An amorphous polyester composition according to the present invention comprises (A) a low crystalline polyolefin modified with unsaturated carboxylic acids, (B) an amorphous polyester, (C) a silane coupling agent and (D) an optional inorganic filler, wherein (A) forms a matrix phase and (B) forms a domain phase. This amorphous polyester composition has excellent adhesion properties to different materials such as metal and has excellent damping performance, and therefore a damping material having excellent initial adhesion properties and water-resistant adhesion properties and excellent damping performance, particularly at high temperatures can be obtained from such an amorphous polyester composition.Type: GrantFiled: October 1, 1987Date of Patent: July 18, 1989Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Hitoshi Koga, Kazuo Iwata, Masushi Mishimoto, Nikio Hashimoto
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Patent number: 4831072Abstract: Flame retardant MPPE compositions incorporate an effective amount of a polybrominated higher alkylbenzene or mixture thereof as a flame retardant and flow modifier together with an enhancing agent.Type: GrantFiled: October 9, 1987Date of Patent: May 16, 1989Assignee: Great Lakes Chemical CorporationInventors: Nicolai A. Favstritsky, Robert J. Nulph, Dennis M. Borden
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Patent number: 4824512Abstract: Rubber based adhesives containing liquid stereospecific polybutadiene rubber, one or more hardeners or hardener systems, fillers and optionally primers, which contain one or more chemically irreversibly depolymerized solid rubbers of natural or synthetic origin in quantities of from 1.5 to 5% by weight, based on the sum of the constituents, to a process for the production of these low-viscosity rubber-based adhesives by chemically irreversible depolymerization of one or more solid rubbers of natural or synthetic origin, and to the use of these low-viscosity rubber-based adhesives in the bonding of metal components in automotive manufacturing.Type: GrantFiled: July 24, 1987Date of Patent: April 25, 1989Assignee: Henkel Kommanditgesellschaft auf AktienInventor: Hans-Peter Kohlstadt
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Patent number: 4822654Abstract: A vulcanizable rubber composition comprising (1) 100 parts by weight of a polymer composition comprising(I) a vinylidene fluoride resin,(II) at least one rubber selected from the group consisting of acrylic rubbers, .alpha.,.beta.-unsaturated nitrile-conjugated diene copolymer rubbers and hydrides of .alpha.,.beta.-unsaturated nitrile-conjugated diene copolymer rubbers, said acrylic rubber consisting of (A) 30 to 99.9% by weight of an alkyl acrylate and/or an alkoxy-substituted alkyl acrylate, (B) 0.1 to 10% by weight of a crosslinkable monomer and (C) 0 to 70% by weight of another ethylenically unsaturated compound copolymerizable with (A) and (B) (the sum of (A), (B) and (C) is 100% by weight) and said .alpha.,.beta.-unsaturated nitrile-conjugated diene copolymer rubber consisting of (D) 10 to 60% by weight of an .alpha.,.beta.Type: GrantFiled: March 10, 1988Date of Patent: April 18, 1989Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yasuhiko Takemura, Shinichiro Zen, Yoshiaki Zama, Hiroji Enyo
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Patent number: 4822837Abstract: The mechanical properties of polyphenylene ether - polyamide mixtures are improved by the addition of an oxidized polyolefin wax. In addition, a phosphite is preferably added.Type: GrantFiled: October 6, 1986Date of Patent: April 18, 1989Assignee: General Electric CompanyInventor: Roelof van der Meer
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Patent number: 4820761Abstract: An aromatic polysulfone resin composition comprising 20 to 80% by weight of an aromatic polysulfone, 10 to 70% by weight of wallastonite and 0.5 to 20% by weight of a fluororesin. The aromatic polysulfone resin composition is superior in heat resistance, strength, stiffness, flame resistance, processability, etc. as engineering plastics.Type: GrantFiled: July 5, 1988Date of Patent: April 11, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Teruo Saito, Haruo Hayashida, Kazuo Hieda
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Patent number: 4816345Abstract: The invention relates to component parts comprised of at least two alternating layers comprising a polyphenylene ether-containing (PPE-containing) molded piece and an elastomeric thermoplastic block copolymer of the type A-B-A, wherewith A represents a styrene block and B a soft phase block; and a method of manufacturing the same.Type: GrantFiled: February 4, 1987Date of Patent: March 28, 1989Assignee: Huls AktiengesellschaftInventors: Hans Jadamus, Klaus-Peter Richter
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Patent number: 4816510Abstract: Thermoplastic blends having excellent surface appearance and improved coefficient of thermal expansion are prepared from a polyphenylene ether, a linear polyester such as a poly(alkylene dicarboxylate), a polymer containing a substantial proportion of aromatic polycarbonate units, and property improving amounts of mica reinforcement.Type: GrantFiled: August 12, 1987Date of Patent: March 28, 1989Assignee: General Electric CompanyInventor: John B. Yates, III
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Patent number: 4808647Abstract: Curable flame retardant mixtures of a polyolefin (non-rubbery), a polyphenylene ether resin, an aromatic phosphate, a brominated compound or polymer, and a crosslinking agent are described. Electrically conductive articles having insulation material made of the composition and methods for preparing such articles are also disclosed.Type: GrantFiled: July 18, 1986Date of Patent: February 28, 1989Assignee: General Electric CompanyInventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
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Patent number: 4798855Abstract: Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether sulfone(C) from 0.1 to 30% by weight of a polymeric component having hydroxyl groupsand in addition(D) from 0 to 50% by weight of a rubber impact modifier and(E) from 0 to 60% by weight of reinforcing fillers.Type: GrantFiled: May 13, 1987Date of Patent: January 17, 1989Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Gerd Blinne, Peter Ittemann, Gerhard Heinz, Erhard Seiler, Manfred Knoll
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Patent number: 4794137Abstract: The invention relates to thermoplastic polymer mixtures based on a polyphenylene ether which comprise an aromatic phosphate compound and a polyfunctional diene compound. The polymer mixtures according to the invention have a reduced sensitivity to stresses in the presence of solvents and an improved notch impact value in comparison with polymer mixtures not comprising a polyfunctional diene compound.Type: GrantFiled: July 24, 1986Date of Patent: December 27, 1988Assignee: General Electric CompanyInventors: Roelof van der Meer, Jan Bussink
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Patent number: 4789697Abstract: Into a material based on a caoutchouc-type or caoutchouc-containing mixture for producing hard rubber, there is incorporated a pre-mix containing high-strength organic fibers and a liquid hardenable plastic material. The high-strength and temperature resistant material thus obtained is particularly suitable for the attenuation of noise in combustion engines when heavy-weight fillers are also added to such material. Engine components like, for example, valve covers, timing gear covers and oil pans can be manufactured from this material.Type: GrantFiled: September 9, 1985Date of Patent: December 6, 1988Assignee: Semperit AGInventors: Josef Affenzeller, Wolf-Dieter Jost
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Patent number: 4786671Abstract: The present invention relates to new flameproofing agent combinations of bisphthalimides and tetrafluoroethylene polymers and their use for providing thermoplastic moulding compositions of halogenated polycarbonates and ABS polymers with a flame-repellent finish.Type: GrantFiled: January 23, 1986Date of Patent: November 22, 1988Assignee: Bayer AktiengesellschaftInventors: Hans-Jurgen Kress, Friedemann Muller, Horst Peters, Christian Lindner, Josef Beukers
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Patent number: 4785076Abstract: The ultraviolet light radiation stability as manifested, for instance, by the resistance to yellowing is improved for polyphenylene ether resins and blends by including a combination of a benzotriazole-based screening-type UV stabilizer and a hindered dipiperidinyl antioxidant-type UV stabilizer. The combination of the two stabilizers exhibits syneristic behavior in the compositions, conferring better resistance to yellowing than can be predicted and expected from the observed effects of each stabilizer alone. Flame retardant embodiments are illustrated.Type: GrantFiled: September 3, 1985Date of Patent: November 15, 1988Assignee: General Electric CompanyInventor: Peter H. Shu
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Patent number: 4783494Abstract: Thermoplastic compositions useful for preparation into shaped articles are provided which are based on mixtures of an aromatic polycarbonate resin, such as a poly(bisphenol-A carbonate) resin, and a copolymer of ethylene and acrylic or methacrylic acid. The ethylene copolymer can be an ionically crosslinked addition polymer (ionomer) as provided when the acid groups are neutralized with metal cations, or they can simply be random copolymers which are not ionically crosslinked. Articles prepared from the compositions are more resistant to undergoing delamination than counterpart compositions based on mixtures of polycarbonate and polyethylene.Type: GrantFiled: May 26, 1987Date of Patent: November 8, 1988Assignee: General Electric CompanyInventor: Richard B. Allen
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Patent number: 4782106Abstract: A colored or carbon-black-loaded rubber adhesive mixture that has a natural and/or synthetic rubber base, and that is intended for direct bonding to glass or metallic articles. The adhesive mixture contains: filler comprising 20 to 100 parts by weight relative to 100 parts by weight rubber, activator, plasticizer, vulcanizing agent, an adhesive system having a resorcinol/hexamethylenetetramine base, and an inorganic base.Type: GrantFiled: October 24, 1986Date of Patent: November 1, 1988Assignee: Continental AktiengesellschaftInventors: Gerhard Fricke, Holger Hoffmann, Henning Umland
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Patent number: 4772642Abstract: Self-extinguishing polymeric composition based on a polyolefin, especially polypropylene, of improved thermal stability containing an intumescent fire-retardant system comprised of a phosphorus constituent and a carbonaceous nitrogen constituent. The composition contains more particularly, as the phosphorus constituent, a product consisting substantially of(a) 75-99.5 wgt % pulverulent free flowing ammonium polyphosphate of the following general formulaH.sub.(n-m)+2 (NH.sub.4).sub.m P.sub.n O.sub.3n+1in which n stands for an integer having an average value of from about 20 to 800 and the ratio of m/n is about 1, and(b) about 0.5-25 wgt % of a water-insoluble, optionally cured artificial resin encapsulating the individual ammonium polyphosphate particles.Type: GrantFiled: April 16, 1987Date of Patent: September 20, 1988Assignee: Hoechst AktiengesellschaftInventor: Horst Staendeke
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Patent number: 4772653Abstract: Tough, stain-resistant microwave cookware can be fabricated from an injection-moldable thermoformable blend, comprising:A. a thermoformable interpolymer, comprising at least one unsaturated dicarboxylic acid compound polymerized with at least one vinyl monomer, in an amount between about 25 and about 75 weight % based on the weight of the unfilled blend, andB. at least one thermoformable polymer, selected from the group consisting of polycarbonates (including polyestercarbonates), poly(aryl ether sulfone) resins, polyarylates, and polyetherimides in an amount between about 75 and about 25 weight % based on the weight of the unfilled blend.Type: GrantFiled: September 18, 1987Date of Patent: September 20, 1988Assignee: Amoco CorporationInventor: Lawrence A. McKenna
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Patent number: 4772657Abstract: A composition having a composition containing substantially no other engineering thermoplastic resin and a compression set (JIS K 6301; 100.degree. C..times.22 hours; and compressibility, 25%) of 65% or less as rubber which comprises:(a) 100 parts by weight of a hydrogenated block copolymer obtained by hydrogenating a block copolymer comprising at least two polymer blocks A composed mainly of a vinyl-substituted aromatic hydrocarbon and at least one polymer block B composed mainly of a conjugated diene,(b) 11 to 233 parts by weight of a homopolymeric and/or copolymeric polyphenylene ether resin comprising a binding unit represented by the general formula, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, represent substituents selected from the group consisting of hydrogen, halogen, hydrocarbon groups and substituted hydrocarbon groups, and having a reduced viscosity in a range of from 0.15 to 0.70 as measured at 30.degree. C. in a 0.Type: GrantFiled: July 18, 1986Date of Patent: September 20, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Yoshikuni Akiyama, Yasushi Kishimoto, Ken Mizushiro, Hideo Morita
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Patent number: 4772655Abstract: The present invention is directed to flame retardant, pigmented polycarbonate molding compositions which properties include both good flame resistance properties and virtual freedom from streaking. The compositions are particularly suitable for use in molding machines using hot runner tools. The composition of the invention comprise a thermoplastic aromatic polycarbonate resin, a flame retarding agent, pigments, polytetrafluoroethylene--ASTM Type 3--and an amount of finely divided hydrophobic silicon dioxide sufficient for providing streaking-free molded articles.Type: GrantFiled: June 1, 1987Date of Patent: September 20, 1988Assignee: Mobay CorporationInventors: Sivaram Krishnan, Roger J. White, Ronald L. Price
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Patent number: 4771096Abstract: Polyphenylene ethers may show the property that their molecular weight increases considerably upon extrusion. This increase of the molecular weight leads to less good flow properties. It has been found that the addition of a conjugated, non-aromatic diene compound or of a dienophilic compound suppresses the increase of the molecular weight under extrusion.Type: GrantFiled: March 29, 1984Date of Patent: September 13, 1988Assignee: General Electric CompanyInventors: Jan Bussink, Roelof van der Meer
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Patent number: 4760115Abstract: The invention relates to thermoplastic materials having the following components:(a) 5-85 parts by weight of a melted or remelted preforming material comprising(i) 60-98 parts by weight of a polyphenylene ether,(ii) 40-2 parts by weight of a polyoctenylene, and(iii) 1-7.5 parts by weight of bicyclo [2.2.2]-2,3:5,6-dibenzooctadiene-2,5-dicarboxylic acid-7,8-anhydride, and(b) 95-15 parts by weight of a polyamide comprising an aliphatic homopolyamide or a copolyamide and optionally(c) polystyrene resins, flame protection agents, and other additives, and to a method for their manufacture.Type: GrantFiled: March 30, 1987Date of Patent: July 26, 1988Assignee: Huls AktiengesellschaftInventors: Michael Droescher, Hans Jadamus
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Patent number: 4758618Abstract: A curable composition comprising an elastomeric vinylidene fluoride copolymer, a polyhydroxy compound and a vulcanization accelerator, characterized in that said copolymer contains from 2 to 50 mol % of vinylidene fluoride units and unsaturated bonds introduced by reacting an untreated elastomeric vinylidene fluoride copolymer dispersed in an aqueous medium, with an aqueous alkaline solution containing an onium compound.Type: GrantFiled: September 3, 1986Date of Patent: July 19, 1988
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Patent number: 4749752Abstract: Fluoropolymer alloys made of melt fabricatable extra-high-molecular weight fluorinated ethylene-propylene copolymer (EHMW-FEP) and one or more other polymers. In fluoropolymer alloys made of EHMW-FEP and polytetrafluoroethylene, the weight percentage of the former is 0.1-99.9% and the latter is 99.9-0.1% respectively. The processes for preparing the fluoropolymer alloys are dried powder co-mill or wetted powder co-mill. Using the fluoropolymer alloys of this invention various kinds of articles have been fabricated by melt compression or cold compaction and sintering. These articles show a great improvement in creep property and also a prolonged service life in comparison with those made from ordinary polytetrafluoroethylene.Type: GrantFiled: March 24, 1986Date of Patent: June 7, 1988Assignee: Shanghai Institute of Organic Chemistry Academia SinicaInventors: Duan Youlu, Jin Shanrong, Huang Tingchun, Sun Jin, Yu Xinying
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Patent number: 4749738Abstract: An aromatic carbonate resin composition comprising:(i) at least one aromatic carbonate resin;(ii) at least one polyolefin;(iii) at least one fluorinated polyolefin; and(iv) at least one silicone fluid;components (ii)-(iv) being present in amounts which are effective to improve the wear resistance of said aromatic carbonate resin.Type: GrantFiled: December 19, 1986Date of Patent: June 7, 1988Assignee: General Electric CompanyInventor: Omar M. Boutni
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Patent number: 4740536Abstract: This invention relates to ambient-curing water-based binder, coating and adhesive compositions. These compositions are prepared by mixing (1) an acidic first component containing an aqueous dispersion of polymer latex, said polymer being alkali-curable and polymerized from a monomer mixture containing quaternary ammonium monomer, and an epoxy resin, together with (2) an alkaline second component containing an amine curing reagent. The resulting mixture of the first and second components is alkaline, cures quickly at room temperature, and yields films with high film strength, durability, and excellent heat and water resistance.Type: GrantFiled: September 6, 1985Date of Patent: April 26, 1988Assignee: Rohm and Haas CompanyInventor: Yen-Yau H. Chao
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Patent number: 4737539Abstract: Resin bearing material consists essentially of at least one thermoplastic resin material selected from the group consisting of polyacetal, polyamide, polycarbonate, polyphenylene sulfide, polyethylene terephthalate, and ultra-high molecular weight polyethylene, and of aromatic group, polyamide fiber, and is produced by the steps comprising kneading and extruding said at least one thermoplastic resin material and the cutting the extruded material.The sliding characteristics are superior to the conventional oleo-bearing materials containing the carbon fiber, and glass fiber.Type: GrantFiled: March 30, 1987Date of Patent: April 12, 1988Assignee: Taiho Kogyo Co., Ltd.Inventors: Osamu Jinno, Tatsuhiko Fukuoka
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Patent number: 4725650Abstract: A phenolic compound having improved retention of useful properties over long periods of time at elevated temperatures is presented. The novel phenolic compound, preferably a glass reinforced phenol-formaldehyde with mineral fillers has incorporated therein elastomers which primarily undergo crosslinking on oxidative aging, such as butadiene based rubbers, and/or molecular sulfur or sulfur donor components. These additives unexpectedly retard thermal degradation with time of aging and provide exceptionally good retention of weight, molded dimensions and mechanical properties.Type: GrantFiled: February 27, 1986Date of Patent: February 16, 1988Assignee: Rogers CorporationInventors: Vincent R. Landi, Bruce B. Fitts
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Patent number: 4704432Abstract: Polyestercarbonate compositions having superior environmental stress crack resistance are obtained by blending with up to about 12 weight percent of a polymer of 4-methyl-1-pentene.Type: GrantFiled: September 26, 1985Date of Patent: November 3, 1987Assignee: The Dow Chemical CompanyInventor: Darrell C. Feay
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Patent number: 4701517Abstract: Disclosed are terpolymers having a Ring and Ball softening point of 69.degree. C. to 130.degree. C. prepared from a vinyl-substituted aromatic hydrocarbon, a monoterpene hydrocarbon and a phenol. The terpolymers are useful as tackifiers in adhesive compositions.Type: GrantFiled: March 13, 1986Date of Patent: October 20, 1987Assignee: Hercules IncorporatedInventor: Norman E. Daughenbaugh, Jr.
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Patent number: 4699832Abstract: A reinforced rubber mixture composed of (A) at least one natural, styrene/butadiene, polybutadiene, polyisoprene, transpolyoctenylene, ethylene/propylene/diene terpolymer and butyl rubber, (B) at least one phenol novolak resin and/or reactive polyphenol, (C) curing agents and, if appropriate, (D) customary additives, wherein the rubber mixture contains, as an additional component (E), at least one polar, chlorine-free rubber in the form of nitrile rubber having a nitrile content of at least 32% or polyurethane rubber in a proportion by weight of 1 to 49% by weight, relative to the total amount of rubber. Process for the preparation thereof and the use of the reinforced rubber mixtures for the production of industrial rubber goods, in particular for the production of antivibration units, rubber sleeves, coatings, conveyor belts and tires.Type: GrantFiled: March 27, 1986Date of Patent: October 13, 1987Assignee: Hoechst AktiengesellschaftInventor: Richard Sattelmeyer