Halogen Patents (Class 524/341)
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Patent number: 4954542Abstract: Tetrahalophthalate esters are disclosed herein as flame retardant processing aids for polybutylene terephthalate (PBT) resins.Type: GrantFiled: March 25, 1988Date of Patent: September 4, 1990Assignee: Pennwalt CorporationInventors: Joseph M. Bohen, Ronald F. Lovenguth
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Patent number: 4921890Abstract: A process for improving the flame retardancy, hygroscopic, soil release and other properties of a polymer substrate is provided in which the substrate is contacted with a suitable aqueous mixture containing a water-soluble monomer and an organic halogen-containing hydrophobic carrier compound at a temperature of between about 40.degree. C. to 100.degree. C. Polymerization of the monomer is thereafter initiated by a chemical or physical initiator to form a polymer evenly disposed on the substrate. The flame retardancy, hygroscopic, soil release and other surface properties of the substrate are thereby improved. The mixture may be in the form of an emulsion wherein the hydrophobic carrier compound is emulsified by an appropriate agent. The invention also pertains to the improved substrates prepared in accordance with the present process.Type: GrantFiled: April 24, 1987Date of Patent: May 1, 1990Assignee: Intera Company, Ltd.Inventors: Katsumi Hayashi, Gregory A. Lentz
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Patent number: 4908428Abstract: Quick-crystallizing polyester compositions comprising a mixture consisting or consisting essentially of a polyester thermoplastic resin and of 0.1-10% by weight of a nucleant selected from polymeric-base salts, or mixtures of salts, of alkali metals or alkaline-earth metals of the formula:M--(OOC--C.sub.6 H.sub.4 --COO--CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2).sub.m (OOC--Z--COOY).sub.n (ABRX) (1)whereinM is an alkali or alkaline-earth metal;Y is a group --CH.sub.2 CH.sub.2 --,--(CH.sub.2).sub.4 -- or --CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 --;Z is a group --C.sub.6 H.sub.4 --, or a group --(CH.sub.2).sub.q --, q being an integer from 7 to 10;A is an anion selected from the group consisting of carboxylate, sulphonate, sulphinate, phosphonate, phosphinate;B may be a single bond or a group selected from the group consisting of --CH.dbd.CH--, --CH.sub.2 --, --CH.sub.2 CH.sub.2 --;R is an arylene radical containing from 1 to 3 aromatic rings or a heterocyclic ring;X is a hydrogen atom or a group --COOM or --COO(CH.Type: GrantFiled: March 14, 1989Date of Patent: March 13, 1990Assignee: Montefibre S.p.A.Inventors: Catia Bastioli, Vittorio Bellotti, Luciano Del Giudice
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Patent number: 4897307Abstract: The present invention relates to a process for the solvent-induced crystallization of amorphous poly(etheretherketone)-type polymer to produce an article, which process comprises:A. contacting a preformed article of a polymer comprising amorphous poly(etheretherketone)-type polymer with at least one organic compound in its liquid state which consists essentially of atoms of carbon and hydrogen, optionally with oxygen, nitrogen, sulfur, halogen or mixtures thereof having a molecular weight of between about 160 and 320 daltons at a temperature of between about 85.degree. C. and 145.degree. C. for a time effective to crystallize the poly(etheretherketone)-type polymer,B. removing the organic compound, andC. recovering the article comprising crystallized poly(etheretherketone)-type polymer. Poly(etheretherketone), poly(phenylenesulfide) or mixtures thereof are preferred polymer systems.Type: GrantFiled: August 11, 1987Date of Patent: January 30, 1990Assignee: The Dow Chemical CompanyInventors: Henry N. Beck, Robert M. Nowak
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Patent number: 4879329Abstract: An impact resistant flame-retardand resin composition comprising:100 parts by weight of a polymer mixture comprising a polycarbonate resin (A), a rubber-reinforced vinyl copolymer (B) and, optionally, a vinyl polymer (C);from 3 to 50 parts by weight of a high molecular weight halogenated compound of the following formula I having a halogen content of at least 10% by weight: ##STR1## wherein n is an average polymerization degree of from 35 to 100, each X independently represents hydrogen, chlorine or bromine, each of i, j, k and l is an integer of from 1 to 4, and each of R and R' independently is hydrogen, a methyl group, an epoxypropyl group, a phenyl group or ##STR2## wherein m is 0, 1, 2 or 3; and from 2 to 30 parts by weight of an antimony compound.Type: GrantFiled: October 18, 1988Date of Patent: November 7, 1989Assignee: Mitsubishi Rayon Company Ltd.Inventors: Masafumi Hongo, Mitsuaki Noda
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Patent number: 4735983Abstract: A flame-retardant styrene-base resin composition is composed of 100 parts by weight of a styrene-base resin, 2.0-20.0 parts by weight of a halogenous flame retardant and 0.1-5.0 parts by weight of an antimony compound. The weight ratio of halogen atoms/antimony atoms in the resin composition is 5 or greater. The resin composition of this invention has well-balanced specific gravity, impact resistance and heat resistance and flame retardancy.Type: GrantFiled: March 25, 1987Date of Patent: April 5, 1988Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Masato Takaku, Ichiro Otsuka, Keizi Iio, Nobuyuki Tashiro, Daizo Natsugari, Hideo Ichikawa
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Patent number: 4673701Abstract: Alkylidene bisphenol phosphites and phosphates having 2,2,6,6-tetramethyl piperidinyl groups are provided having the formula: ##STR1## wherein: R.sub.1 is alkyl having from one to about twelve carbon atoms;R.sub.2, R.sub.3 and R.sub.4 are each selected from the group consisting of hydrogen and alkyl having from one to about twelve carbon atoms;m is 0 or 1;n is 0 or 1;X is selected from the group consisting of ##STR2## wherein: R.sub.5 is selected from the group consisting of hydrogen, oxyl O.sup.2, alkyl having from one to about twelve carbon atoms; arylalkyl having from seven to about eighteen carbon atoms; 2,3-epoxypropyl, acyl having from one to about eight carbon atoms and ##STR3## in which R.sub.6 is selected from the group consisting of hydrogen, alkyl having from one to about twelve carbon atoms and phenyl, and Y.sub.1 is selected from the group consisting of hydrogen; acyl having from one to about twelve carbon atoms; and ##STR4## Z.sub.1 is selected from the group consisting of ##STR5## wherein R.Type: GrantFiled: December 28, 1984Date of Patent: June 16, 1987Assignee: Adeka Argus Chemical Co., Ltd.Inventors: Motonobu Minagawa, Yutaka Nakahara, Toshihiro Shibata, Ryozo Arata
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Patent number: 4631302Abstract: A biocidal wax composition for preventing corrosion and biological fouling nd surface degradation of submerged structures comprises from about 10 to about 40 percent of total biocidal wax composition of a biocidal polymeric gel consisting of a polymer from the group consisting of a polyethylene, polypropylene, a copolymer of polyethylene and vinyl acetate, and mixtures thereof and a solvent selected from the group consisting of mineral oil, a paraffin wax and mixtures thereof, and a biocide; and from about 60 to about 90 percent of total biocidal wax composition of a wax matrix composition consisting of petrolatum, at least two chlorinated waxes, and a microcrystalline wax. The biocidal wax is prepared by shock-cooling a hot solution of a polymer through its cloud point, admixing a biocide with the gel, and admixing the above wax matrix composition with the gel.Type: GrantFiled: July 1, 1985Date of Patent: December 23, 1986Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Robert F. Supcoe, Thomas Radakovich
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Patent number: 4602051Abstract: According to the invention, a resin composition having an electromagnetic wave shielding effect is provided. The resin composition comprises 35 to 90 wt % of an ABS resin or a mixture of the ABS resin and an AS resin, 1 to 25 wt % of a plasticizer and 5 to 40 wt % of carbon fibers. The carbon fibers are uniformly dispersed in the resin ingredient without being broken or cut at the step of mixing and dispersing the resin components, thus exhibiting improved electromagnetic wave shielding effect.Type: GrantFiled: August 30, 1984Date of Patent: July 22, 1986Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Takeshi Nabeta, Isamu Hanahara
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Patent number: 4582866Abstract: Flame retardant thermoplastic multi-block copolyester elastomer compositions containing a bromine-containing flame retardant; antimony trioxide; and an organophilic clay which is the reaction product of at least one quaternary ammonium salt with a smectite clay.Type: GrantFiled: April 30, 1984Date of Patent: April 15, 1986Assignee: E. I. Du Pont de Nemours and CompanyInventor: Albert L. Shain
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Patent number: 4552911Abstract: The present invention relates to polycarbonate molding compositions containing additives of alkali or alkaline earth metal salts, tetrahalogenophthalimides and optional glass fibers, characterized in that they contain additive amounts of bromine.Type: GrantFiled: January 28, 1983Date of Patent: November 12, 1985Assignee: Bayer AktiengesellschaftInventors: Wolfgang Cohnen, Klaus Kircher, Peter R. Muller, Sivaram Krishnan, Dieter Neuray
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Patent number: 4535112Abstract: A method for repairing perfluorocarbon copolymeric cation exchange membranes. A quantity of a perfluorocarbon copolymer having a desired pendant cation exchange functional group is partially solvated in a solvating dispersion media, applied to areas of the membrane to be repaired, and the dispersion media removed.Type: GrantFiled: September 21, 1983Date of Patent: August 13, 1985Assignee: Eltech Systems CorporationInventors: G. Howard McCain, Leo L. Benezra, Craig E. Finch
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Patent number: 4529760Abstract: Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid esters are provided having the formula: ##STR1## wherein: Z is the residue of an aliphatic or aromatic or nitriloaliphatic or hydroxy aliphatic polycarboxylic acid having from three to six carboxylic acid groups and from one to thirty carbon atoms; ##STR2## wherein R.sub.3 is hydrogen, alkyl and hydroxyalkyl having from one to about twenty carbon atoms; cycloalkyl having from six to about twenty carbon atoms; aryl having from six to about twenty carbon atoms; or cycloalkylene with the N in the ring and having from two to five carbon atoms;R is alkylene having from two to about twelve carbon atoms; cycloalkylene having from three to about twelve carbon atoms; phenylene having from six to about twenty carbon atoms; mixed alkylenecycloalkylene or alkylene phenylene or oxyalkylene having from two to about twelve carbon atoms; ##STR3## wherein R.sub.4 is alkyl having from one to about six carbon atoms;R.sub.Type: GrantFiled: November 1, 1983Date of Patent: July 16, 1985Assignee: Adeka Argus Chemical Co., Ltd.Inventors: William E. Leistner, Motonobu Minagawa, Yutaka Nakahara, Tohru Haruna, Atsushi Nishimura
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Patent number: 4473523Abstract: An aromatic polyimide film having excellent mechanical, thermal and electrical properties, is continuously produced by the steps of:preparing a dope solution having a rotation viscosity of 500-10.sup.5 poises at 100.degree. C. by uniformly dissolving aromatic polyimide in a solvent consisting of at least one phenol compound; extruding the dope solution through a T-die at 50.degree. C. or more, but at least 30.degree. C. below the boiling point of the solvent, under conditions which cause the apparent viscosity and shear stress of the dope solution to be 500-5.times.10.sup.4 poises and 10.sup.4 -10.sup.6 dyne.multidot.cm.sup.-2, respectively, to form a filmy stream of the dope solution; placing the filmy stream of the dope solution on a surface of a supporting means while heating the surface at a temperature of 50.degree. C.Type: GrantFiled: January 12, 1983Date of Patent: September 25, 1984Assignee: UBE Industries, Ltd.Inventors: Yoshikazu Sasaki, Hiroshi Inoue, Youji Negi, Kazuhiko Sakai
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Patent number: 4472543Abstract: A flame retardant diaphragm for speakers, etc. comprises an admixture of natural fibers and inorganic fibers. The admixture is impregnated with a thermosetting resin and an organic bromine compound, and heat-treated under pressure. The organic bromine compound acts as a flame retarder.Type: GrantFiled: May 26, 1982Date of Patent: September 18, 1984Assignees: Pioneer Electronic Corporation, Mogami Denki Kabushiki KaishaInventors: Kazuo Tsuchiya, Fumio Kawahara, Shigeru Watanabe
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Patent number: 4460716Abstract: A process for preparing resin coated sand for shell molding foundry operations is disclosed wherein the resin utilized is a phenolic resin containing a bromophenol. The resin coated sand has improved shake-out properties and is especially formulated for low melting metals such as aluminum and magnesium castings.Type: GrantFiled: June 16, 1983Date of Patent: July 17, 1984Assignee: Sumitomo Durez Company, Ltd.Inventors: Yukio Saeki, Shigeru Nemoto, Yukio Tokunaga
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Patent number: 4458036Abstract: Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) organic solvent soluble glycoluril-formaldehyde material.Type: GrantFiled: February 28, 1983Date of Patent: July 3, 1984Assignee: Stauffer Chemical CompanyInventor: Gerald Fesman
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Patent number: 4454278Abstract: A polyester, a polyester/polyamide or a polyester/polyamide/polyimide polymers are prepared from (a) a diaryl terephthalate or diaryl isophthalate, and (b) an aromatic polyol or of (a) and a mixture of (b), and an aromatic diamine, or of (a), (b), (c), and (d) a triaryl mellitate, or a copolycarbonate of any of the foregoing including units derived from (e) a diaryl carbonate. The resulting polyester, polyamide, polyester/polyamide or polyester/polyamide/polyimide polymers are adapted for use as an insulating coating on an electrical conductor.Type: GrantFiled: June 24, 1981Date of Patent: June 12, 1984Assignee: General Electric CompanyInventors: Daniel W. Fox, John J. Keane
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Patent number: 4447572Abstract: Polyamides, flame retarded with a halogenated derivative and blended with a polymer blend resin being at least partially incompatible and having a lower melt viscosity than the polyamide, to improve the arc tracking resistance of the polyamide, are disclosed. The polyamides are particularly useful in the manufacture of flame retarded electrical components.Type: GrantFiled: November 6, 1981Date of Patent: May 8, 1984Assignee: Occidental Chemical CorporationInventors: Daniel J. Scharf, Charles S. Ilardo, Willis T. Schwartz, Gideon Salee
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Patent number: 4446272Abstract: A resin composition having nice color tone and high crack-resistance as well as flame-retardancy is obtained by blending(A) 100 weight parts of a resin composition containing a rubber-reinforced vinyl aromatic polymer and polyphenylene ether represented by the following general formula: ##STR1## wherein each of R.sub.1 and R.sub.2 represents a monovalent residue such as the same or different alkyl group having 1-4 carbon atoms, aryl group, halogen and hydrogen, and n represents the polymerization degree or a polyphenylene ether onto which a vinyl aromatic compound is graft-copolymerized, in which the polyphenylene ether content is 5-70 wt. % (based on the weight of the resin part),(B) 1-30 weight parts of a halogenated aromatic compound and(C) 0.5-20 weight parts of a non-crystalline ethylene-propylene copolymer.Type: GrantFiled: September 10, 1981Date of Patent: May 1, 1984Assignee: Asahi-Dow LimitedInventors: Kunio Fukuda, Kichiya Tazaki, Akihisa Takano, Yuji Kusumi
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Patent number: 4433031Abstract: Wood is preserved with a water-based treating solution containing a halogenated phenol wood preservative such as pentachlorophenol, a phenolic resin prepolymer such as a phenol formaldehyde prepolymer, and a coupling or solubilizing agent for enhancing the water compatibility of the various ingredients. The treatment is carried out by exposing the wood, while submerged in the treating solution, so one or more cycles of reduced pressure (i.e. vacuum) and elevated pressure.Type: GrantFiled: May 5, 1983Date of Patent: February 21, 1984Assignee: Cherokee Industries, Inc.Inventor: William R. Allen, Sr.
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Patent number: 4433071Abstract: Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) water or alcohol soluble urea-formaldehyde resin.Type: GrantFiled: December 14, 1982Date of Patent: February 21, 1984Assignee: Stauffer Chemical CompanyInventor: Gerald Fesman
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Patent number: 4410648Abstract: An organic high polymer composition having an improved flame retarding property which is obtained by incorporating into a flame resistive composition comprising (a) an organic high polymer substance, (b) an organic flame retarder and (c) incombustible active inorganic powder (d) a polyfunctional compound and (e) an organic compound represented by the formula: ##STR1## wherein Z is an oxygen atom or a sulfur atom, A is a C.sub.2 -C.sub.20 divalent hydrocarbon group having or not substituents and forming a ring together with the adjacent two carbon atoms and B, and B is an oxygen atom or an amino group: --NY-- (Y being a hydrogen atom, a halogen atom or an organic group having not more than 30 carbon atoms) or its hydrolyzate.Type: GrantFiled: August 17, 1981Date of Patent: October 18, 1983Assignee: Dainichi-Nippon Cables, Ltd.Inventors: Hiroshi Kato, Chiaki Momose
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Patent number: 4404305Abstract: Translucent polyorganosiloxane resin compositions exhibiting acceptable levels of flame retardancy contain from 1 to 10%, based on resin weight, of an organic halogen source in combination with finely divided glass particles. Translucent substrates coated with these resin compositions can be used in the exterior portions of buildings intended to be heated at least in part by solar energy.Type: GrantFiled: February 16, 1982Date of Patent: September 13, 1983Assignee: Dow Corning CorporationInventor: Beth I. Gutek
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Patent number: 4399195Abstract: Wood is preserved with a water-based treating solution containing a halogenated phenol wood preservative such as pentachlorphenol, a phenolic resin prepolymer such as a phenol formaldehyde prepolymer, and a coupling or solubilizing agent for enhancing the water compatibility of the various ingredients. The treatment is carried out by exposing the wood, while submerged in the treating solution, so one or more cycles of reduced pressure (i.e. vacuum) and elevated pressure.Type: GrantFiled: August 24, 1981Date of Patent: August 16, 1983Assignee: Cherokee Industries, Inc.Inventor: William R. Allen, Sr.
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Patent number: 4396698Abstract: A loaded polymer latex composition is disclosed. The composition comprises an aqueous polymer latex whose dispersed phase is made up of a specified cross-linked quaternary salt polymer loaded with a specified hydrophobic substance. The latex composition can be advantageously employed as a mordant polymer in a photographic element for a color diffusion transfer process. Use of the latex improves light resistance without lowering the maximum densities of the film images.Type: GrantFiled: June 8, 1982Date of Patent: August 2, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukio Karino, Masakazu Morigaki, Shinji Sakaguchi
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Patent number: 4391844Abstract: Coatings made from soluable cross-linkable elastomers are shown. Particularly, techniques for solution cross-linking perfluorocarbon copolymers to generate resistant coatings for lining and coating applications are disclosed.Type: GrantFiled: June 26, 1981Date of Patent: July 5, 1983Assignee: Diamond Shamrock CorporationInventors: Stanley K. Baczek, G. Howard McCain, Leo L. Benezra, Michael J. Covitch
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Patent number: 4366279Abstract: A flame retardant polycarbonate resin composition comprising a polycarbonate resin, a nuclear substituted benzoic acid containing at least one substituent selected from the group consisting of thiosalicylic acid and dihydroxy benzoic acid, and tetrabromobisphenol A or ##STR1## .Type: GrantFiled: August 19, 1981Date of Patent: December 28, 1982Assignee: Idemitsu Kosan Company LimitedInventors: Tatsuya Tomioka, Norio Ogata
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Patent number: 4355126Abstract: The present invention provides novel flame retardant, non-dripping thermoplastic molding compositions of polyphenylene ether resins or acrylonitrile-butadiene-styrene copolymers which include a flame retardant agent, and polytetrafluoroethylene.Type: GrantFiled: February 26, 1979Date of Patent: October 19, 1982Assignee: General Electric CompanyInventors: William R. Haaf, Donald L. Reinhard