Aryl Group Patents (Class 524/141)
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Patent number: 4920166Abstract: The invention relates to flame-resistant mixtures of polycarbonates with graft polymers and copolymers which are characterized in that they contain modified polyalkylene ethers as antistatic agent.Type: GrantFiled: May 8, 1989Date of Patent: April 24, 1990Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Buysch, Norbert Schon, Hans-Jurgen Kress, Herbert Eichenauer, Josef Buekers
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Patent number: 4914144Abstract: A flameproof, halogen-free thermoplastic molding material contains, based on the molding material consisting of A, B, C, D and E,(A) 40 to 95% by weight of a thermoplastic halogen-free aromatic polycarbonate based on a diphenol,(B) from 5 to 30% by weight of one or more halogen-free graft polymers obtained from, based on B,(b.sub.1) an elastomer (rubber), which accounts for from 40 to 80% by weight, and(b.sub.2) a graft shell on this elastomer which accounts for from 20 to 60% by weight,(C) from 5 to 50% by weight of one or more halogen-free thermoplastic copolymers consisting of, based on C, from 50 to 95% by weight of styrene, .alpha.-methylstyrene, styrene which is substituted in the nucleus, methyl methacrylate or a mixture of these, and from 50 to 5% by weight of (meth)acrylonitrile, methyl methacrylate, maleic anhydride, N-substituted maleimide or a mixture of these,(D) 1 to 25% by weight of one or more halogen-free phosphorus compounds of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.Type: GrantFiled: December 16, 1988Date of Patent: April 3, 1990Assignee: BASF AktiengesellschaftInventors: Klaus Muehlbach, Graham E. McKee, Hermann Brandi, Dieter W. Blum
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Patent number: 4912143Abstract: A resin composition containing potassium based single crystal fibers for absorbing electromagnetic waves.Type: GrantFiled: August 22, 1988Date of Patent: March 27, 1990Assignee: Tong Yang Nylon Co., Ltd.Inventors: Tae O. Ahn, Kyoung N. Park, Beom S. Kim
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Patent number: 4912142Abstract: This invention is an antistatic thermoplastic, phase-segregated polyurethane containing, as an antistatic additive an effective amount of a monovalent metal tetraphenylboron salt, in the substantial absence of a fatty acid salt, a C.sub.6 -C.sub.30 carboxylic acid ester or phosphate ester compound.Suprisingly, it has been found that, with this particular type of polyurethane, tetraphenylboron salts are very effective antistatic additives even in the absence of enhancer compounds as were previously employed. Accordingly, the antistatic polyurethane is useful for applications such as electronics components and packaging, and other applications where static dissipative ability is needed or desirable.Type: GrantFiled: November 16, 1988Date of Patent: March 27, 1990Assignee: The Dow Chemical CompanyInventors: Robbert M. Vermeulen, Donald M. Maschmeyer
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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: 4902735Abstract: High impact resistant polycarbonate, a process for producing said polycarbonate, and a polycarbonate resin composition are disclosed. This polycarbonate consists of a main chain with a cumylphenoxy group, as a terminal group, bonded to at least one end thereof, said main chain comprising a repeating unit represented by the formula (I): ##STR1## and has a viscosity average molecular weight of at least 10,000 and an acetone soluble content of not more than 3.5 wt %. The polycarbonate can be efficiently produced by the process of the invention. The composition comprises a polycarbonate resin and a specific amount of a phosphorus-based antioxidant.Type: GrantFiled: April 27, 1988Date of Patent: February 20, 1990Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Masaya Okamoto, Eiichi Terada
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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: 4892900Abstract: A polyphenylene ether resin composition superior in impact resistance, heat resistance, mechanical strength, moldability, and flow properties, comprising a polyphenylene ether resin (A), a polystyrene resin (B), and a polyorganosiloxane-based graft copolymer (C) produced by graft polymerizing one or more vinyl monomers onto a polyorganosiloxane rubber which contains a graft-linking agent copolymerized and exhibits a degree of swelling of 3 to 15 measured in toluene.Type: GrantFiled: September 29, 1988Date of Patent: January 9, 1990Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Isao Sasaki, Naoki Yamamoto, Akira Yanagase
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Patent number: 4891397Abstract: Improved nucleated thermoplastic polyetherimide ester elastomers containing polybutylene terephthalate (PBT) and nucleating agent. PBT and nucleating agent blended with polyetherimide ester elastomers substantially improves crystallization properties of the polyetherimide esters.Type: GrantFiled: December 2, 1987Date of Patent: January 2, 1990Assignee: General Electric CompanyInventor: Nan-I Liu
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Patent number: 4889879Abstract: Coherent thermoplastic aggregates with very high content of pulverized mineral materials, composed of the said materials, of polyolefin polymers and/or copolymers, and possibly also of various familiar adjuvants, characterized by the fact that, in order for them to have both a volumetric mass close to or at most equal to the theoretical volumetric mass of the pulverized mineral substances entering into their composition and an excellent compatibility with redispersion polymers, the polymers and/or copolymers entering into the composition of the said aggregates in presence of a fluidizing agent are chosen within the group of thermoplastics with melting and/or softening point at least equal to 60.degree. C. and index of fluidity at least 50 (measured according to the standard ASTM D 1238) of the polyolefin type, other than those containing a polar monomer.Type: GrantFiled: July 24, 1987Date of Patent: December 26, 1989Assignee: Pluess Staufer AGInventors: Henry Seinera, Patricia Luberne, Claude Stock, Patrick Trouve
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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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Polymer mixture comprising a polyphenylene ether, a block copolymer, a phosphate ester and additives
Patent number: 4879330Abstract: The invention relates to a polymer mixture which comprises a polyphenylene ether, a block copolymer, and a phosphate ester in a given ratio by weight. The polymer mixture according to the invention is particularly suitable as a material for cable sheaths.Type: GrantFiled: March 17, 1987Date of Patent: November 7, 1989Assignee: General Electric CompanyInventors: Johannes W. J. De Munck, Johannes H. G. M. Lohmeijer -
Patent number: 4871793Abstract: Polyphenylene sulfide resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol) having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.Type: GrantFiled: January 21, 1987Date of Patent: October 3, 1989Inventors: Yutaka Nakahara, Atsushi Nishimura, Toshio Nakajima
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Patent number: 4863983Abstract: An extrudable composition comprising hydrocarbon polymer, organophosphite or organophosphate compound and fluorocarbon polymer. The organophosphite or organophosphate and the fluorocarbon polymer are present in the composition in such relative proportions and concentrations as to reduce the occurrence of melt defects during the extrusion of said thermoplastic hydrocarbon polymer.Type: GrantFiled: April 15, 1988Date of Patent: September 5, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventors: Bryce V. Johnson, Joyce M. Kunde
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Patent number: 4837256Abstract: Described herein are tough solvent resistant materials from a crystallizable, crosslinkable resin mixture comprising a particular polyarylether and a crystallization promoting plasticizer, and reinforced composites made from such resin mixture.Type: GrantFiled: September 15, 1987Date of Patent: June 6, 1989Assignee: Amoco CorporationInventors: Hugh C. Gardner, Ismael Colon, Lloyd M. Robeson
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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: 4820772Abstract: A polyolefin composition having a superior resistance to impact-whitening, luster, impact resistance, mechanical strength and stiffness, particularly, mechanical strength and stiffness is provided, which composition is obtained by (1) blending (B) a high density ethylene polymer, (C) a non-crystalline ethylene-propylene random copolymer or a non-crystalline ethylene-propylene-non-conjugated diene random copolymer and a phosphate compound expressed by the following formula (I) (hereinafter referred to as compound (a)): ##STR1## wherein R.sub.1 represent sulfur or an alkylidene group of 1 to 4 carbon atoms; R.sub.2 and R.sub.3 each represent a hydrogen atom or the same or different alkyl groups of 1 to 8 carbon atoms; M represents a monovalent, divalent or trivalent metal atom; m represents 0 or 1; and n represents an integer of 1 to 3, with (A) a crystalline .alpha.Type: GrantFiled: April 18, 1988Date of Patent: April 11, 1989Assignee: Chisso CorporationInventors: Nobuo Goto, Hiroshisa Ishii, Hirokazu Nakajima
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Patent number: 4812498Abstract: Polycarbonate resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol)having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.Type: GrantFiled: December 22, 1986Date of Patent: March 14, 1989Assignee: Adeka Argus Chemical Co., Ltd.Inventors: Yutaka Nakahara, Atsushi Nishimura, Toshio Nakajima
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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: 4806162Abstract: A combination of materials is disclosed which imparts superior fire retardant properties to organic polymers and the gaseous by-products of those polymers. The combination is made up of an organo phosphate plasticizer, aluminum hydroxide or alumina hydrate, antimony trioxide, a borate, a brominated hydrocarbon and a chlorinated paraffin.Type: GrantFiled: May 13, 1988Date of Patent: February 21, 1989Assignee: Norton CompanyInventor: Michel Ladang
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Patent number: 4803231Abstract: Coherent thermoplastic aggregates with very high content of pulverulent mineral materials, said aggregates comprised of the said mineral materials, further of polyolefin polymers and/or copolymers, and possibly additionally of miscellaneous known additives; characterized in that, with the aim of achieving a density near to or at most equal to the theoretical density of the pulverulent mineral materials entering into their composition, while still having excellent compatibility with the polymers of redispersion, i.e., the polymers into which the subject aggregates are to be mixed, the interparticle voids between the grains of the mineral materials, which grains are basically in contact with each other, are at most filled--in the presence of a fluidifacient agent--by at least one polyolefin polymer and/or copolymer having a fusion temperature and/or softening temperature at least equal to 60.degree. C., and having a fluidity index (ASTM 1238) of at least 50.Type: GrantFiled: October 29, 1985Date of Patent: February 7, 1989Assignee: Pluess Staufer A. G.Inventors: Henri Seinera, Patricia Luberne, Claude Stock, Patrick Trouve
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Patent number: 4798836Abstract: Bis-(2,2,6,6-tetramethyl-piperidyl)diimides are provided, having the formula: ##STR1## in which R is selected from the group consisting of hydrogen; oxyl; alkyl and alkenyl having from one to about eighteen carbon atoms; epoxy and hydroxyalkyl having from two to about eight carbon atoms; acyl having from two to about eight carbon atoms; and phenalkyl having from seven to about twelve carbon atoms; and Z is a tetravalent aliphatic or cycloaliphatic hydrocarbon group having from two to about eighteen carbon atoms; and stabilizer and synthetic polymer compositions containing such diimides having improved resistance to deterioration when exposed to light.Type: GrantFiled: October 26, 1987Date of Patent: January 17, 1989Assignee: Adeka Argus Chemical Co., Ltd.Inventors: Motonobu Minagawa, Yutaka Nakahara, Bunji Hirai, Kazuo Sugibuchi
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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: 4788238Abstract: The present invention provides thermoplastic flame-retardant moulding compositions containing halogen-containing copolycarbonates, styrene/maleic anhydride copolymers, phosphorus compounds of the formula (I) ##STR1## and tetrafluoroethylene polymers and, if desired, further known additives.Type: GrantFiled: September 21, 1987Date of Patent: November 29, 1988Assignee: Bayer AktiengesellschaftInventors: Gert Todtemann, Klaus Reinking, Otto Koch, Kress Hans-Jurgen, Lindner Christian, Friedemann Muller, Horst Peters, Josef Buekers
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Patent number: 4788232Abstract: Resinous pigment concentrates comprising at least one pigment and a dispersing additive of a naphthenic extender oil and/or a phosphate ester blended with a major portion of a resinous polymer containing a significant proportion of at least one polymerized conjugated diene monomer, when used for coloring resinous polymers as described, are effective in reducing such defects in finished articles as gels and surface blemishes.Type: GrantFiled: October 23, 1987Date of Patent: November 29, 1988Assignee: Phillips Petroleum CompanyInventor: Donald G. Needham
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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: 4785034Abstract: A stabilized polyolefin resin composition in which (a) 0.005-5% by weight of at least one monofunctional or polyfunctional cyanate ester compound having at least one cyanato group in its molecule, (b) 0.01-5% by weight of at least one hindered amine ultraviolet absorber and (c) 0.005-2% by weight of at least one hindered phenolic antioxidant are incorporated into a polyolefin resin is disclosed. The resin composition has excellent heat stability and resistance to weathering.Type: GrantFiled: March 3, 1987Date of Patent: November 15, 1988Assignees: Mitsubishi Gas Chemical Company, Inc., Dainichiseika Color & Chemicals Mfg. Co. Ltd.Inventors: Morio Gaku, Hidenori Kimbara, Akira Yahagi, Takaaki Osanai
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Patent number: 4777189Abstract: Flame-retardant polyurethane foam having a very good skin weldability and a very low level of skin staining is produced from a polyhydroxy compound, organic polyisocyanate, blowing agent, catalyst, foam stabilizer, and flame retardant, and other additives, wherein the flame retardant contains a triaryl phosphate ester and the polyhydroxy compound is a mixture composed of 100 parts by weight of high-molecular-weight polyhydroxy compound having a hydroxyl number lower than 100 and 0.5 to 10 parts by weight of low-molecular-weight polyhydroxy compound having a hydroxyl number higher than 560 and having 2 to 4 hydroxyl groups in one molecule.Type: GrantFiled: June 30, 1987Date of Patent: October 11, 1988Assignees: Ikeda Bussan Co., Ltd., Bridgestone CorporationInventors: Kenji Shimomura, Shigeaki Kouketsu, Toru Okuyama, Take Sato
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Patent number: 4774269Abstract: A filled polyolefin molding material having a very high filler content and containing no filler-free polymer and no polymer-free filler is obtained when the Ziegler catalyst is initially formed on the filler and the catalyst-charged filler is then used for the polymerization without addition of further catalyst or activator. The molding material is highly suitable, in particular when it has a high content of aluminum powder, for the production of molded parts having good thermal conductivity and a high electrical volume resistance.Type: GrantFiled: May 12, 1987Date of Patent: September 27, 1988Assignee: Hoechst AktiengesellschaftInventor: Gerhard Thum
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Patent number: 4766165Abstract: The present invention relates to flame-retarding moulding compositions which are based on thermoplastic polycarbonates, copolymers of styrenes and maleic anhydride, phosphorus compounds of the formula (I) ##STR1## tetrafluoroethylene polymers, small amounts of graft polymers and optionally halogen compounds and which in addition can contain stabilizers, pigments, flow agents, release agents and/or antistatics, and to a process for their preparation.Type: GrantFiled: June 5, 1986Date of Patent: August 23, 1988Assignee: Bayer AktiengesellschaftInventors: Hans-Jurgen Kress, Friedemann Muller, Christian Lindner, Horst Peters, Josef Buekers, Gert Todtemann
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Patent number: 4764539Abstract: A combination of materials is disclosed which imparts superior fire retardant properties to organic polymers and the gaseous by-products of those polymers. The combination is made up of an organo phosphate plasticizer, aluminum hydroxide or alumina hydrate, antimony trioxide, a borate, a brominated hydrocarbon and a chlorinated paraffin.Type: GrantFiled: November 24, 1987Date of Patent: August 16, 1988Assignee: Norton CompanyInventor: Michel Ladang
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Patent number: 4758614Abstract: Substituted amino carbamate derivatives corresponding to the formula ##STR1## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process stabilizers in organic materials containing phenolic antioxidants and/or metal salts of fatty acids and/or hindered amine light stabilizers and/or organic phosphorus compounds; and certain of said derivatives as new compounds.Type: GrantFiled: April 25, 1986Date of Patent: July 19, 1988Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Edward T. Hessell, Ramanathan Ravichandran
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Patent number: 4755547Abstract: Included are halogenated phosphate-phosphites and their acid halides and acids. The halogenated phosphate-phosphites can be prepared by a process comprising serially contacting(A) a phosphorus trihalide with a triol;(B) a halogenating agent; and(C) an oxirane or an alcohol,under conditions sufficient to prepare the halogenated phosphate-phosphite. Steps (A) and (B) can prepare their acid halides. Use of water in step (C) can prepare their acids. For example, 3-((bis(2-chloroethoxy)phosphino)oxy)(2-bromomethyl-2-methylpropyl, 2-bromoethyl, 2-chloroethyl)-phosphorate can be prepared from 2-methyl-2-(hydroxymethyl)-1,3-propanediol; phosphorus trichloride; bromine; and ethylene oxide.Also included is use of the compounds as a hydraulic fluid or flame retardant. For example, polyurethanes can be rendered less flammable with the halogenated phosphate-phosphite flame retardant.Type: GrantFiled: April 8, 1986Date of Patent: July 5, 1988Assignee: The Dow Chemical CompanyInventor: Chester E. Pawloski
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Patent number: 4751260Abstract: The present invention relates to flame-retarding, thermoplastic polycarbonate moulding materials of high impact strength consisting of halogen-containing polycarbonates, copolymers formed from styrenes and (meth)acrylonitrile, phosphorus compounds of the formula (I) ##STR1## tetrafluoroethylene polymers and small amounts of graft polymers and, if appropriate, effective amounts of stabilizers, pigments, lubricants, mould release agents and/or antistatic agents, and to a process for the preparation thereof.Type: GrantFiled: April 30, 1986Date of Patent: June 14, 1988Assignee: Bayer AktiengesellschaftInventors: Hans-Jurgen Kress, Friedemann Muller, Christian Lindner, Horst Peters, Josef Buekers
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Patent number: 4745144Abstract: The silicone rubber composition comprises, in addition to the conventional ingredients of a high-polymeric diorganopolysiloxane and a reinforcing silica filler, a specific phosphorus-containing organic compound, such as phosphinates, phosphonates and phosphates, in a limited amount. By virtue of this unique ingredient, the composition can give a cured silicone rubber product having greatly improved resistance against dynamic fatigue.Type: GrantFiled: August 14, 1986Date of Patent: May 17, 1988Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kunio Itoh, Kiyoshi Imai, Takeshi Fukuda, Nobuyuki Uesugi
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Patent number: 4743638Abstract: The invention relates to highly crystalline, rapid-crystallizing, thermoplastic compositions of polyphenylene sulphides and aromatic phosphoric acid esters.Type: GrantFiled: February 26, 1987Date of Patent: May 10, 1988Assignee: Bayer AktiengesellschaftInventors: Peter Bier, Klaus Reinking, Ludwig Bottenbruch, Erhard Tresper
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Patent number: 4742099Abstract: A new polyimide film which contains 30 to 800 ppm of titanium based on the weight of the film, and a process for producing a new polyimide film which comprises introducing an organic titanium compound substance into the film-forming polyimide resin prior to the casting step. This process enables one to control the film surface forming process and improve directly the adhesive properties of the film.Type: GrantFiled: December 1, 1986Date of Patent: May 3, 1988Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hirosaku Nagano, Junji Takase, Hideki Kawai, Hitoshi Nojiri, Tsuneo Yamamoto
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Patent number: 4722955Abstract: Carbonate polymer compositions exhibit good thermal stability and good non-yellowing characteristics. Compositions comprise a carbonate polymer (e.g., a homopolycarbonate of bisphenol A), a heat stabilizing phosphorous compound (e.g., an organo-phosphite or an organo-phosphonite), an epoxy compound containing internal acyclic ether linkages (e.g., a diglycidyl ether of a polypropylene glycol), and optionally a hindered phenol. Such compositions retain desirable properties upon exposure to hot and humid conditions.Type: GrantFiled: April 15, 1985Date of Patent: February 2, 1988Assignee: The Dow Chemical CompanyInventor: Kevin F. Dick
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Patent number: 4721738Abstract: A composition of matter including a polymer sensitized to the heating effects of microwave energy which comprises said polymer and a microwave sensitizing amount of a particulate, layered compound comprising a tetravalent atom and a pentavalent atom, selected from the group consisting of elements of Group V of the Periodic Table of the Elements, and having an atomic weight of greater than 30, dispersed throughout said polymer.Type: GrantFiled: October 7, 1985Date of Patent: January 26, 1988Assignee: Occidental Research CorporationInventors: Jeffrey R. Ellis, Martin B. Dines, deceased
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Patent number: 4721774Abstract: The present invention relates to thermoplastic moulding compositions consisting of halogen-free polycarbonates, styrene/maleic anhydride copolymers, phosphorus compounds of the formula (I) ##STR1## and tetrafluoroethylene polymers and, where appropriate, other known additives.Type: GrantFiled: March 19, 1987Date of Patent: January 26, 1988Assignee: Bayer AGInventors: Gert Todtemann, Klaus Reinking, Otto Koch
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Patent number: 4720514Abstract: Resinous pigment concentrates comprising at least one pigment and a dispersing additive of a naphthenic extender oil and/or a phosphate ester blended with a major portion of a resinous polymer containing a significant proportion of at least one polymerized conjugated diene monomer, when used for coloring resinous polymers as described, are effective in reducing such defects in finished articles as gels and surface blemishes.Type: GrantFiled: February 13, 1986Date of Patent: January 19, 1988Assignee: Phillips Petroleum CompanyInventor: Donald G. Needham
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Patent number: 4704417Abstract: Mixed polyester molding compositions comprising at least a pair of structurally different thermoplastic polyesters are stabilized against transesterification, whether during formulation or the downstream molding thereof, by having incorporated therein an effective amount of at least one mono-, di- or triester of orthophosphoric acid.Type: GrantFiled: July 5, 1985Date of Patent: November 3, 1987Assignee: Rhone-Poulenc Specialites ChimiquesInventors: Yves Bonin, Michel Logeat
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Patent number: 4704418Abstract: A fire-resistant thermoplastic composition comprising polyvinyl butyral resin and a compatible mixture in an amount sufficient to provide fire-resistant properties to such composition which includes (a) a plasticizer blend of a char-forming component, such as an organic phosphate, and an oxygen sequestering agent, such as an organic phosphite, wherein the char-forming component is the major constituent; (b) a nucleating agent such as fumed silica for dispersing the fire decomposition products of the composition; and (c) a heat reactive bonding resin.Type: GrantFiled: December 23, 1985Date of Patent: November 3, 1987Assignee: Monsanto CompanyInventor: I. Luis Gomez
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Patent number: 4696952Abstract: Flame-retardant polyurethane foam having a very good skin weldability and a very low level of skin staining is produced from a polyhydroxy compound, organic polyisocyanate, blowing agent, catalyst, foam stabilizer, and flame retardant, and other additives, wherein the flame retardant contains a triaryl phosphate ester and the polyhydroxy compound is a mixture composed of 100 parts by weight of high-molecular-weight polyhydroxy compound having a hydroxyl number lower than 100 and 0.5 to 10 parts by weight of low-molecular-weight polyhydroxy compound having a hydroxyl number higher than 560 and having 2 to 4 hydroxyl groups in one molecule.Type: GrantFiled: July 19, 1985Date of Patent: September 29, 1987Assignees: Ikeda Bussan Co., Ltd., Bridgestone Corp.Inventors: Kenji Shimomura, Shigeaki Kouketsu, Toru Okuyama, Take Sato
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Patent number: 4692488Abstract: The present invention relates to high-impact, flame-repellant thermoplastic polycarbonate moulding compositions consisting of halogen-free polycarbonates, halogen-free copolymers of styrenes and (meth)acrylonitrile, halogen-free phosphorus compounds of the formula (I) ##STR1## tetrafluoroethylene polymers and small amounts of graft polymers and, if appropriate, effective amounts of stabilizers, pigments, flow control agents, mould release agents and/or antistatics, and a process for their preparation.Type: GrantFiled: June 18, 1986Date of Patent: September 8, 1987Assignee: Bayer AktiengesellschaftInventors: Hans-Jurgen Kress, Friedemann Muller, Christian Lindner, Horst Peters, Josef Buekers
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Patent number: 4690954Abstract: A method for improving a production characteristic of flame-retardant polyurethanes. The characteristic may be selected from the group consisting of(1) processability;(2) scorch;(3) odor; and(4) flame-retardant efficiency.The method comprises incorporation into a polyurethane an amount effective to reduce combustibility of a haloether phosphorate flame-retardant under conditions sufficient to improve said characteristic. Also, the flame-retardant polyurethane composition such as prepared by said method. Preferably, the polyurethane is a foam, especially a flexible foam and most especially flexible slabstock foam.Type: GrantFiled: April 28, 1986Date of Patent: September 1, 1987Assignee: The Dow Chemical CompanyInventors: David J. Wampfler, Donna J. Fielding, Chester E. Pawloski
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Patent number: 4684682Abstract: There are provided flame retardant, flexibilized thermoplastic compositions which comprise, in admixture, a normally flammable polyphenylene ether resin, an aromatic phosphate plasticizer in an amount at least sufficient to provide a flame retardant, flexibilized composition after molding, and a thermoplastic elastomer comprising a block copolymer of a vinyl aromatic compound and a diene monomer. Preferred features comprise such compositions which also include a halogenated hydrocarbon, alumina trihydrate and/or elemental red phosphorus.Type: GrantFiled: April 26, 1984Date of Patent: August 4, 1987Assignee: General Electric CompanyInventor: Gim F. Lee, Jr.
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Patent number: 4683255Abstract: A polyphenylene ether resin composition having excellent fire retardancy comprising(A) a polyphenylene ether resin, and(B) at least one phosphate compound selected from the group consisting of biphenyl phosphate compounds and naphthyl phosphate compounds.Type: GrantFiled: February 25, 1986Date of Patent: July 28, 1987Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akitoshi Sugio, Masao Okabe, Akikazu Amagai
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Patent number: 4681902Abstract: This invention relates to flame retardant phenol aldehyde foams which have a k value below 0.020 W/mk. The foams have as flame retardants a blend of a halosubstituted diphenyl oxide and an organic phosphorus compound. The feature of the invention is that unlike conventional flame retardants, the blend now used does not adversely affect the low k value i.e. the low thermal conductivity of the foam.Type: GrantFiled: November 3, 1986Date of Patent: July 21, 1987Assignee: BP Chemicals LimitedInventors: Alexander W. S. Duncan, David G. Summers, Kenneth C. Thomas
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Patent number: RE32765Abstract: A polyester which when made into an article such as films, containers, bottles and the like has a very high clarity, a low haze value, and a neutral hue. In the preparation of the resin, an antimony catalyst is utilized along with small amounts of a bluing agent such as a cobalt compound and a phosphate compound with the phosphate compound generally being slightly in excess of an equivalent amount of the cobalt compound. The polyester is made from dicarboxylic acids and preferably aromatic acids such as terephthalic acid reacted with polyhydric alcohols.Type: GrantFiled: February 13, 1987Date of Patent: October 11, 1988Assignee: The Goodyear Tire & Rubber CompanyInventors: Douglas D. Callander, Fred L. Massey