Halogen Atom Other Than Cl Patents (Class 524/412)
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Patent number: 4829118Abstract: Flame retardant ABS compositions incorporate an effective amount of a polybrominated higher alkylbenzene or mixture thereof and an enhancing agent.Type: GrantFiled: October 9, 1987Date of Patent: May 9, 1989Assignee: Great Lakes Chemical CorporationInventors: Nicolai A. Favstritsky, Enrico J. Termine, Dennis M. Borden
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Patent number: 4820782Abstract: A shaped article having a thermal recovery property comprising a urethane resin composition, wherein said urethane resin composition comprises 100 parts by weight of a thermoplastic urethane resin and from 0.1 to 50 parts by weight of at least one polyfunctional monomer selected from the group consisting of trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, and triacrylformal, said composition is irradiated with electron beams or gamma-rays for a total dose of from 3 to 50 Mrad, subsequently deformed at a temperature not lower than the softening point of said composition, and then cooled to a temperature lower than said softening point while maintaining the deformed shape of said resin composition.Type: GrantFiled: December 8, 1986Date of Patent: April 11, 1989Assignee: Sumitomo Electric Industries, Ltd.Inventor: Keiji Ueno
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Patent number: 4814018Abstract: Fillers comprising a composition in which 50-90 wt. % or iron oxides and 10-30 wt. % of silica are contained, at least 50 wt. % of the iron oxides being present in the form of iron oxide silicate, and the content of alkali metal oxides or alkaline earth metal oxides is 10 wt. % or less in total, are suitable as fillers for the fabrication of noise insulating materials. Noise insulating materials obtained by using said fillers are excellent in flexibility and processibility and moreover are large in surface density, thus exhibiting excellent noise insulating ability.Type: GrantFiled: June 22, 1987Date of Patent: March 21, 1989Assignees: Tatsuta Electric Wire and Cable Co., Ltd., Nippon Mining Co., Ltd.Inventors: Hidekazu Tsurumaru, Nobuhiro Fujio, Takeshi Yamasaki, Toshio Nishizaki, Isao Negisi
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Patent number: 4810739Abstract: Flame resistant thermoplastic moulding compositions consisting of(a) from 5 to 85 parts, by weight, of an aromatic polycarbonate,(b) from 15 to 95 parts, by weight, of a SAN-graft polymer,(c) from 0 to 50 parts, by weight, of a thermoplastic polymer,(d) optionally from 3 to 15 parts, by weight, (per 100 parts by weight of (a)+(b)+(c) of an organic, low molecular weight, oligomeric or polymeric halogen compound,(e) from 0.05 to 5 parts, by weight, (per 100 parts by weight of (a)+(b)+(c)) of antimony trioxide, antimony carbonate, bismuth trioxide or bismuth carbonate, and(f) from 0.05 to 0.5 parts, by weight, based on 100 parts, by weight, of the sum of (a)-(f), of finely-divided tetrafluoroethylene polumer having a fluorine content of from 65 to 76%, by weight, and a process for the production thereof.Type: GrantFiled: June 11, 1984Date of Patent: March 7, 1989Assignee: Bayer AktiengesellschaftInventors: Christian Lindner, Horst Peters, Josef Buekers, Bernd Urbanneck
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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: 4804698Abstract: A flame retardant polypropylene based formulation which contains polypropylene and a flame retardant amount of decabromodiphenyl oxide and a halogenated bisimide.Type: GrantFiled: April 4, 1988Date of Patent: February 14, 1989Assignee: Ethyl CorporationInventor: Robert A. Schleifstein
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Patent number: 4788244Abstract: A flame-resistant composition comprising a blend of (I) polyamide, (II) a brominated polystyrene and (III) a copolymer of an aromatic vinyl compound and an .alpha., .beta.-unsaturated dicarboxylic acid anhydride, wherein the .alpha., .beta.-unsaturated dicarboxylic acid anhydride component of the copolymer is present in an amount of 0.06-0.75 wt % based on the total weight of (I), (II) and (III).Type: GrantFiled: January 27, 1988Date of Patent: November 29, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Junnichi Nakahashi, Takuo Shigetomi, Shinichi Kai
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Patent number: 4783279Abstract: The invention relates to a plastic mixture with electromagnetic shielding characteristics based on a matrix with a content of ferroelectrics and electrically conductive and/or ferromagnetic fillers, which is characterized in that the ferroelectric component has a Curie point or a phase transition range from the ferroelectric into the paraelectric phase covering the Curie point and which is in the range of the use temperature of -40.degree. to +98.degree. C. of the electromagnetic shielding material and, based on the electromagnetic material volume, is present in a quantity of 1 to 20 vol. %, whilst the electrically conductive or ferromagnetic fillers are present in quantitites of 5 to 15 vol. %, the ferroelectric component preferably being an organic compound selected from the group consisting of semi carbadize-hydrochloride, 3,4-dihydroxy-3-cyclobutene-1,2-dione and triglycine sulphate and the inorganic compound is from the group consisting of barium-strontium titanate and antimony iodide sulphide.Type: GrantFiled: August 4, 1987Date of Patent: November 8, 1988Assignee: Lehmann & Voss & Co.Inventors: Hans J. Petermann, Klaus Wenderoth, Wolfram H. O. Krieger
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Patent number: 4780496Abstract: Normally combustible thermoplastic polyolefins such as polystyrene and polypropylene may be flame retarded without discoloration utilizing a flame retardant additive mixture comprising hexabromocyclododecane and one or more bis-(polybromophenoxy)ethane.Type: GrantFiled: July 14, 1987Date of Patent: October 25, 1988Assignee: Great Lakes Chemical CorporationInventors: Enrico J. Termine, Harry A. Hodgen
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Patent number: 4774044Abstract: There is disclosed a method for rendering fine denier polypropylene filaments and fibers flame retardant. The method includes mixing flame retardant compounds, such as an aromatic bromine and antimony oxide, with an anti-oxidant and low density polyethylene prior to mixing with the polypropylene resin.Type: GrantFiled: June 26, 1986Date of Patent: September 27, 1988Assignee: Techlon Fibers CorporationInventors: Bobby L. Cline, Gerard M. O'Mahony
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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: 4762644Abstract: A polymer solution comprising a polymer comprising at least 50 mole % of recurring units represented by the following formula (1): ##STR1## wherein R.sub.1 through R.sub.4, which may be the same or different, represent a hydrogen atom or an alkyl or alkoxy group having 1 to 5 carbon atoms, with the proviso that the case where all of R.sub.1 through R.sub.4 represent a hydrogen atom is excluded, a dopant and an organic solvent has a high electric conductivity and is valuable as an electrolyte of a battery, an electrolyte of a capacitor, and the like. A shaped article obtained by shaping this solution and removing the organic solvent from the shaped article has a high electric conductivity and is valuable as various electronic parts.Type: GrantFiled: November 10, 1986Date of Patent: August 9, 1988Assignee: Showa Denko Kabushiki KaishaInventors: Yukio Kobayashi, Masataka Takeuchi
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Patent number: 4748167Abstract: Disclosed herein are ambient temperature-curable compositions of improved pot life comprising epoxy-containing vinyl polymers and oxygen-containing amines. Coating compositions comprising the same cure at ambient temperature to produce films of excellent properties.Type: GrantFiled: August 1, 1984Date of Patent: May 31, 1988Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Kurt G. Olson, James A. Claar
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Flame-resistant, thermoplastic polyurethane elastomers, process for their preparation, and their use
Patent number: 4748195Abstract: The invention relates to flame-resistant, thermoplastic polyurethane elastomers containing a flame-retardant additive package comprising:(a) a compound selected from the group consisting of antimony trioxide, zinc borate and mixtures thereof,(b) a chlorinated polyethylene, and(c) a brominated aromatic compound, preferably selected from the group consisting of polytetrabromobis(phenol)-A-glycidyl ether), polytribromostyrene, and polytetrabromobis(phenol)-A-carbonate).The flame-retardant additive package may be incorporated into the starting components used to prepare the thermoplastic polyurethane prior to the reaction which forms the polyurethane, to the reaction mixture during the reaction, or to the finished thermoplastic polyurethane elastomers.The flame resistant, thermoplastic polyurethane elastomers are suitable for the preparation of, for example, molded articles, films, sheets, and cable jackets.Type: GrantFiled: December 8, 1986Date of Patent: May 31, 1988Assignee: BASF AktiengesellschaftInventors: Christa Hackl, Dietrich Wagner, Hans M. Rombrecht -
Patent number: 4741865Abstract: Polymer systems can be rendered flame retardant by adding a source of halogen and particles of antimony pentoxide that have been dried from colloidal dispersions that have been treated with certain metal ions. The properties of the polymer are conserved when the colloidal dispersion is treated with ions of metals that have insoluble antimonates before drying to form a powder.Type: GrantFiled: May 7, 1986Date of Patent: May 3, 1988Assignee: Nyacol Products, Inc.Inventors: Donald P. Kintz, Stephen N. Davis
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Patent number: 4741864Abstract: Discoloration in aromatic carbonate polymers brought about by the addition of halogenated flame retardants is counteracted by the further addition of aliphatic polyester.Type: GrantFiled: October 7, 1985Date of Patent: May 3, 1988Assignee: General Electric CompanyInventors: Roger W. Avakian, Ronald J. Wroczynski
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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: 4732922Abstract: Flame resistant, reinforced thermoplastic molding compositions based on polyethylene terephthalate resins were found to have a lowered tendency to drip during burning upon the addition thereto of a sufficient amount of a particular ionic elastomer. The addition of the drip suppressant in accordance with the invention does not compromise the physical and mechanical properties of the composition.Type: GrantFiled: February 26, 1987Date of Patent: March 22, 1988Assignee: Mobay CorporationInventors: George R. Kriek, Mark W. Witman
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Patent number: 4727107Abstract: Disclosed are hot-melt adhesive compositions comprising discrete particles of polyester adhesives, discrete particles of polyester containing a halogenated organic compound and discrete particles containing an antimony compound. Also disclosed is a method of incorporating both a halogenated organic compound and an antimony compound into a polyester adhesive composition.Type: GrantFiled: April 29, 1985Date of Patent: February 23, 1988Assignee: Eastman Kodak CompanyInventors: Richard L. McConnell, Donald C. Davis, Frederick D. Petke, Max F. Meyer, Jr.
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Patent number: 4725638Abstract: The present invention relates to flame retardant polymer compositions comprising a flammable polymer and an amount of between 1% to 40% by weight of tetrabromodipentaerythritol as flame retardant agent. Optionally, synergistic flame retardant additives such as antimony oxide are incorporated in the compositions. The flammable polymers are selected from polyolefins, polyamides and styrenic resins or mixtues thereof. The flame retardant agent according to the present invention imparts to the polymer compositions improved thermal aging behaviour, thermal stability and non blooming property, compared with known flame retardant agents.Type: GrantFiled: September 12, 1986Date of Patent: February 16, 1988Assignee: Bromine Compounds, Ltd.Inventors: Eva Ellmann, Shaul Yanai, Pierre Georlette, Avraham Teurestein
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Patent number: 4722959Abstract: The present invention provides a flame-retardant olefin polymer composition comprising at least components (a), (b) and (c) in whichin 100 parts by weight of a resin component which is conmposed of(a) 99 to 60% by weight of an ethylene-.alpha.-olefin copolymer having a density of 0.86 to 0.91 g/cm.sup.3, a boiling n-hexane insoluble matter of 10% by weight or more and a maximum peak temperature of 100.degree. C. or more in terms of differential scanning calorie meter and(b) 1 to 40% by weight of an olefin polymer modified with an unsaturated carboxylic acid or its derivative;(c) 20 to 200 parts by weight of an inorganic flame retarder is contained; and an electrical material employing the aforesaid composition.Type: GrantFiled: June 24, 1986Date of Patent: February 2, 1988Assignee: Nippon Petrochemicals Co., LTD.Inventors: Takashi Inoue, Masazi Sunada, Satoru Kaneko, Motohide Okamoto
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Patent number: 4714729Abstract: The novel compositions of this invention are ignition resistant thermoplastic compositions comprising in admixture a thermoplastic resin and an ignition resistant additive selected from the group consisting of: at least one unsymmetrical carbonic acid ester of the general formula ##STR1## at least one unsymmetrical ether of the general formulaR.sup.2 --O--R.sup.3 ; anda mixture of at least one unsymmetrical carbonic acid ester and at least one unsymmetrical ether;wherein R, R.sup.1, R.sup.2 and R.sup.3 are selected from the group consisting of a halogenated aryl group, a halogenated alkyl group, a halogenated ether group, and mixtures thereof, containing a halogen selected from the group consisting of Br, Cl, I, Fl, and mixtures thereof, wherein R and R.sup.1 are dissimilar and R.sup.2 and R.sup.3 are dissimilar.Type: GrantFiled: January 27, 1986Date of Patent: December 22, 1987Assignee: The Dow Chemical CompanyInventors: Mark R. Christy, Ernest L. Ecker
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Patent number: 4713408Abstract: A polybutylene terephthalate resin composition comprises polybutylene terephthalate, a sulfonate anionic antistatic agent and an oxidized polyolefin wax. It is improved in the antistatic property and useful as a part for an electric instrument.Type: GrantFiled: December 20, 1985Date of Patent: December 15, 1987Assignee: Polyplastics Co., Ltd.Inventors: Katsuhiko Takahashi, Yoshihisa Tajima
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Patent number: 4710534Abstract: A composition comprising(a) a major quantity of aromatic polycarbonate;(b) a minor amount of a polyalkylene terephthalate wherein the alkylene group is from 2 to about 10 carbon atoms, and is present in such quantities so as to substantially reduce the DTUL of the polycarbonate;(c) an effective amount of a combination of impact modifier and gloss suppressant selected from an olefin diene copolymer and an acrylonitrile-butadiene-alkenylaromatic copolymer; and(d) an effective amount of flame retardant system to maintain a VO rating for a 1.6 mm sample under UL 94 test conditions wherein the overall composition has a DTUL in .degree.C. of less than or equal to 115.degree. C., a 3.2 mm Notched Izod impact resistance in kilograms f-cm per cm of at least about 10, a surface gloss as measured with a Hunter Lab's gloss meter at 60.degree. reflection of less than or equal to about 80 and a VO rating for a 1.6 mm sample under UL test conditions.Type: GrantFiled: December 9, 1985Date of Patent: December 1, 1987Assignee: General Electric CompanyInventor: Ping Y. Liu
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Patent number: 4708980Abstract: If antimony oxide is added to a blend of polyethylene terephthalate/alkali metal organic carboxylate in the form of a concentrate in a polyamide, the destabilizing effect of the antimony oxide on the blend is minimized. This greatly improves the thermal stability of the polyethylene terephthalate blend during compounding and subsequent melt processing operations, as compared with similar compositions where the antimony oxide is added in the form of a concentrate with another organic polymer, viz., polyethylene, or is added neat.Type: GrantFiled: December 15, 1986Date of Patent: November 24, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventor: William E. Garrison, Jr.
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Patent number: 4708975Abstract: Flame retardant thermoplastic multi-block copolyester compositions containing a bromine or chlorine containing flame retardant; antimony trioxide; an organophilic clay which is the reaction product of at least one quaternary ammonium salt with a smectite clay fumed or colloidal silica or polytetrafluoroethylene; 5-100 parts per 100 parts multi-block copolyester of alumina trihydrate and up to about 100 parts per 100 parts multi-block copolyester of calcium carbonate.Type: GrantFiled: April 2, 1986Date of Patent: November 24, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventor: Albert L. Shain
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Patent number: 4707510Abstract: A resin composition comprises 100 parts by weight of a thermoplastic resin and 9 to 55 parts by weight of an additive mixture comprising (A) 3 to 35 parts by weight of a tetrahalogenated bisphenol A carbonate oligomer, (B) 3 to 35 parts by weight of bis(tribromo-phenoxy)ethane and (C) 0.5 to 15 parts by weight of antimony trioxide. It is advantageous in respect to flame retardancy, impact resistance and light durability.Type: GrantFiled: March 20, 1987Date of Patent: November 17, 1987Assignee: Daicel Chemical Industries, Ltd.Inventors: Tatsuhiko Imai, Masuo Kawasawa
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Patent number: 4699734Abstract: The invention relates to base polyolefin compositions, and concentrates thereof adapted to be let down or diluted by addition of further polyolefin, flameproofed by incorporation therein of an organohalo flame-retardant and a metal oxide or sulfide synergist, are rendered resistant to exudation by incorporating therein the combination of an epoxy resin, an elastomeric resin, and a nucleating agent, the epoxy resin being present in an amount of from about 0.01 to about 10 percent, the elastomeric resin being present in an amount of from about 0.1 to about 20 percent, and the nucleating agent being present in an amount of from about 0.1 to about 10 percent and non-fogging molded products obtained thereby.Type: GrantFiled: November 6, 1985Date of Patent: October 13, 1987Assignee: A. Schulman, Inc.Inventors: Shirley N. Kendall, Ramesh Rengarajan
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Patent number: 4696966Abstract: A fire retardant, impact resistant polyamide composition containing 1 to 25% of a rubbery copolymer containing functional groups derived from maleic, fumaric, norbornadiene and succinic anhydrides or an alicyclic carboxylic acid or functional derivative thereof having a cis-form double bond in the ring, 10 to 30% of a halogenated polymer having a weight average molecular weight greater than 5,000 and a synergist for the halogenated fire retardant. The composition provides a good level of impact strength in combination with a high level of fire retardancy. A particularly good balance of properties can be obtained from compositions containing fillers, especially glass fibres.Type: GrantFiled: May 1, 1986Date of Patent: September 29, 1987Assignee: Imperial Chemical Industries PLCInventor: Ian G. Williams
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Patent number: 4692490Abstract: The flame resistance of blends of polyphenylene ether resin and high impact polystyrene is upgraded by the inclusion of a combination of a polybrominated 1,4-diphenoxybenzene and antimony oxide. The resulting composition exhibits good thermal stability and is more resistant to undergoing juicing and blooming in comparison with the use of polybrominated diphenyl oxides.Type: GrantFiled: March 19, 1986Date of Patent: September 8, 1987Assignee: General Electric CompanyInventor: Visvaldis Abolins
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Patent number: 4691005Abstract: A polymer composition having poly-[2,5-(3-ethylthienylene)] doped with an anion is obtained by electrochemically polymerizing 3-ethylthiophene in an anion-containing salt as an electrolyte. Poly-[2,5-(3-ethylthienylene)] is obtained by electrochemically reducing the polymer composition thereby removing the anion therefrom. The aforementioned polymer composition and poly-[2,5-(3-ethylthienylene)] are novel substances.Type: GrantFiled: February 21, 1986Date of Patent: September 1, 1987Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & IndustryInventors: Masaaki Sato, Susumu Tanaka, Kyoji Kaeriyama, Yoshio Suda
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Patent number: 4678601Abstract: An electrically conductive polymer-latex composite is described. Organic polymeric material capable of being doped to provide an organic electroconductive material is dispersed in a latex and doped to provide an organic electroconductive polymer-latex composite.Type: GrantFiled: September 16, 1985Date of Patent: July 7, 1987Assignee: The Dow Chemical CompanyInventors: George E. Ham, Wuu-Nan Chen, John M. McIntyre
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Patent number: 4666965Abstract: Disclosed is a flame-retardant glass-fiber-reinforced polyethylene terephthalate resin composition formed by blending (A) a polyethylene terephthalate resin, (B) glass fibers, (C) a nucleating agent, (D) a monoepoxy compound having a specific chemical structure and/or a benzoic acid ester having a specific chemical structure, (E) a bromine-containing polymeric flame retarder having aromatic rings in the polymeric side chains, and (E) an antimony oxide in specified proportions.This resin composition has a very high degree of crystallizability and can yield molded articles having excellent appearance, mechanical strength, heat distortion resistance and flame retardancy.Type: GrantFiled: December 30, 1985Date of Patent: May 19, 1987Assignee: Mitsubishi Rayon Co., Ltd.Inventor: Yoshihisa Aoki
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Patent number: 4639486Abstract: Novel flame retardant elastomeric materials are prepared by admixing a polyetherimide ester and a halogenated flame retarding material. Optionally these compositions may further comprise a modifier resin selected from condensation polymers and addition polymers, flame retardant synergists and drip suppressant.Type: GrantFiled: October 8, 1985Date of Patent: January 27, 1987Assignee: General Electric CompanyInventor: Nan-I Liu
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Patent number: 4636544Abstract: Titanium dioxide is disclosed to improve the comparative tracking index of flame retarded poly(1,4-butylene terephthalate) resin molding compositions.Type: GrantFiled: February 25, 1985Date of Patent: January 13, 1987Assignee: General Electric CompanyInventor: Leonard R. Hepp
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Patent number: 4601849Abstract: An electrically conductive organic polymeric material is disclosed which comprises (a) an insoluble and infusible substrate with a polyacene-type skeletal structure having a hydrogen/carbon atomic ratio of from 0.60 to 0.15, said substrate being a heat-treated product of an aromatic condensation polymer consisting of carbon, hydrogen and oxygen, and (b) an electron donating doping agent, or an electron accepting doping agent, or both; said material having a higher electrical conductivity than the undoped substrate (a). The electrically conductive organic polymeric material can be produced by a process which comprises heat-treating an aromatic condensation polymer consisting of carbon, hydrogen and oxygen in a non-oxidizing atmosphere by heating it to a temperature of 400.degree. to 800.degree. C. to form a substrate having a hydrogen/carbon atomic ratio of from 0.06 to 0.Type: GrantFiled: June 9, 1982Date of Patent: July 22, 1986Assignee: Kanebo, Ltd.Inventor: Shizukuni Yata
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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: 4579906Abstract: The invention relates to flame-resistant ABS moulding materials containing a fluoro-organic polymer besides customary flameproofing additives and to a process for their manufactures.Type: GrantFiled: January 23, 1985Date of Patent: April 1, 1986Assignee: Bayer AktiengesellschaftInventors: Karl Zabrocki, Christian Lindner, Hubert Bosshammer, Bernd Urbannek
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Patent number: 4567218Abstract: There is disclosed a flame-retarded acrylonitrile-butadiene-styrene composition containing from about 5 to about 35 percent (by weight) bis(2,4,6-tribromophenoxyethyl) tetrabromobisphenol A ether and a method for forming such a composition.Type: GrantFiled: February 27, 1985Date of Patent: January 28, 1986Assignee: Great Lakes Chemical CorporationInventor: Thomas J. Petiet
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Patent number: 4560719Abstract: The invention provides a polyolefin-based rubber composition capable of giving a vulcanizate having excellent flame retardancy along with high mechanical strengths. The composition comprises: (A) 100 parts by weight of a polyolefin-based synthetic rubber, e.g. EPDM rubber; (B) 1 to 100 parts by weight of an organopolysiloxane; (C) 1 to 100 parts by weight of a bromine-containing flame retardant agent and/or red phosphorus; (D) 5 to 200 parts by weight of aluminum hydroxide and/or magnesium hydroxide; and (E) 0.5 to 20 parts by weight of zinc carbonate and/or manganese carbonate.Type: GrantFiled: February 26, 1985Date of Patent: December 24, 1985Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tsutomu Nakamura, Kunio Itoh
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Patent number: 4555540Abstract: Blends of an aromatic polycarbonate a polyester, a halogenated flame retardant agent and a metal oxide synergist for the flame retardant are made more stable against transesterification reactions during high temperature processing by the inclusion of minor amounts of selected phosphorus-containing compounds, such as phosphorous acid or acid salt.Type: GrantFiled: December 28, 1984Date of Patent: November 26, 1985Assignee: General Electric CompanyInventor: Roger W. Avakian
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Patent number: 4552912Abstract: A glass-reinforced, fire-retardant, arc-track resistant polyamide composition characterized in that it contains:(a) at least 35% by weight of a fibre-forming polyamide,(b) 15% to 30% by weight of glass fibres or particulate fillers,(c) 17.5 to 27.5% by weight of melamine or melamine cyanurate,(d) 1 to 10% by weight of brominated fire retardants selected from a brominated polyphenylene oxide or a brominated epoxy resin, and(e) a synergist selected from zinc oxide, zinc borate, a mixture of zinc oxide and zinc borate and a mixture of antimony oxide and zinc borate, wherein the concentration of oxide present in the synergist is between 0 and 5%, the concentration of borate present is between 0 and 25% by weight, and the total weight of synergist is at least 1%, the weight percentages of the constituents (a), (b), (c), (d) and (e) totalling 100%.Type: GrantFiled: February 29, 1984Date of Patent: November 12, 1985Assignee: Imperial Chemical Industries PLCInventor: Ian G. Williams
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Patent number: 4548972Abstract: A reinforced, fire retardant, polyamide composition containing(a) at least 35% by weight of a fibre-forming polyamide,(b) 15 to 30%, by weight of glass fibres or particulate fillers,(c) 15 to 30%, by weight of melamine demi-sulphate,(d) at least 2.5%, by weight of a halogenated compound selected from the condensation product of 2 moles chlorocylopentadiene and 1 mole of 1,5-cyclooctadiene, brominated polystyrene, brominated polyphenylene oxide or a brominated epoxy resin, and(e) a synergist selected from at least one of zinc borate, zinc oxide and mixtures of antimony oxide and zinc borate, wherein the concentration of oxide present is between 0 and 5%, the concentration of zinc borate is between 0 and 25%, preferably between 2 and 15% by weight and the total weight of synergist is at least 1% by weight and wherein the weight percentages of the constituents total 100%.Type: GrantFiled: February 29, 1984Date of Patent: October 22, 1985Assignee: Imperial Chemical Industries PLCInventor: Ian G. Williams
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Patent number: 4546126Abstract: The tendency to drip of the melt formed from reinforced moulding materials based on thermoplastic polyesters, provided with a flame-retarding finish, when the latter are subjected to an open flame can be prevented by adding phyllosilicates, and the reduction in the toughness properties thereby caused can be prevented by adding alkali metal salts of aliphatic C.sub.6-22 monocarboxylic acids.Type: GrantFiled: July 5, 1984Date of Patent: October 8, 1985Assignee: Ciba Geigy CorporationInventors: Franz Breitenfellner, Thomas Kainmulle
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Patent number: 4525513Abstract: The present invention is a flame retardant composition comprising from 5 to 20 weight percent of a homopolymer of a monomer having the formula: ##STR1## wherein n=0 or 1, X is bromine or chlorine and R is hydrogen or methyl. The polymer has a molecular weight between 1.times.10.sup.3 and 10.times.10.sup.6, and preferably 5.times.10.sup.3 to 5.times.10.sup.6. The molecular weight is determined by gel permeation chromatography in tetrahydrofuran. The composition contains from 80 to 95 weight percent of a polyamide. There can be from 0 to 10, preferably 1 to 10, and more preferably 2 to 6 weight percent of antimony oxide. Optionally, the composition can contain an impact modifier and/or a filler.Type: GrantFiled: December 27, 1982Date of Patent: June 25, 1985Assignee: Allied CorporationInventors: Arie Hochberg, John C. Haylock, Charles D. Mason
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Patent number: 4504608Abstract: Flame retardant reinforced with polyester resin compositions are disclosed glass fiber and a system of flame retardants represented by the following general formulas (I) and (II), together with antimony trioxide. The flame retardant system is a blend of 1-20 parts by weight of component (I), and 2-30 parts by weight of component (II), provided the weight ratio (I)/(II) of the flame retardant component (I) to (II) is in the range of 0.2<(I)/(II)<4, and that the total amount of flame retardants (I) plus (II) is in the range of 3-40 parts by weight. From 2 to 30 parts by weight of antimony trioxide is present and 5 to 60% by weight of glass fiber is also present, these two percentages being expressed on the basis of the weight of the total resin composition. The resin compositions exhibit outstanding mechanical, thermal properties and moldability in addition to being fire retardant.Type: GrantFiled: January 26, 1983Date of Patent: March 12, 1985Assignee: Mitsubishi Rayon Co. Ltd.Inventors: Kazuo Kishida, Isao Sasaki, Hiroshi Mori
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Patent number: 4501686Abstract: Polymeric materials consisting essentially of a polymer of recurring units of a five-membered oxygen family heterocyclic ring which are selected from furan, thiophene, selenophene, tellurophene and derivatives thereof. The polymer is doped with anions of the specific type. A method for producing the polymeric materials is also described which comprises electrochemically polymerizing a five-membered oxygen family heterocyclic compound in coexistence with an acceptor with or without use of a supporting electrolyte in such a way that anions of the specific type are taken in the polymerized heterocyclic compound. The polymeric material is obtained in the form of a dense tenacious film.Type: GrantFiled: April 25, 1983Date of Patent: February 26, 1985Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shu Hotta, Tomiharu Hosaka, Nobuo Sonoda, Wataru Shimotsuma
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Patent number: 4490498Abstract: A resinous composition having an increased flame retardance is disclosed, which comprises (A) 10 to 60% by weight of a mixture comprising 100 parts by weight of a polyolefin resin, 20 to 60 parts by weight of a halogenated organic flame-retardant agent, 7 to 30 parts by weight of antimony trioxide and 10 to 40 parts by weight of zinc borate hydrate, and (B) 90 to 40% by weight of a magnetic body powder. The compositions are endowed with surprising glowing combustion resistance as well as superior flame combustion resistance.Type: GrantFiled: January 17, 1983Date of Patent: December 25, 1984Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kenichi Yokota, Shigeo Nishita, Takashi Sakauchi
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Patent number: RE32472Abstract: Polymer compositions containing minor proportions of polyvalent metal or amine salts of 5,5-bis-(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane. Aluminum, calcium and melamine salts are preferred.Type: GrantFiled: April 2, 1984Date of Patent: August 11, 1987Assignee: Borg-Warner Chemicals, Inc.Inventor: Yuval Halpern
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Patent number: RE32473Abstract: Polymer compositions containing minor proportions of polyvalent metal or amine salts of 5,5-bis-(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane. Aluminum, calcium and melamine salts are preferred.Type: GrantFiled: April 2, 1984Date of Patent: August 11, 1987Assignee: Borg-Warner Chemicals, Inc.Inventor: Donna Mott