Halogen Patents (Class 524/142)
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Patent number: 10583636Abstract: Soft touch fire retardant laminates with PVC middle layers, foamed or unfoamed, and multiblock copolymer or polyurethane or silicone top layers which meet FAA requirements are disclosed.Type: GrantFiled: November 14, 2016Date of Patent: March 10, 2020Assignee: SCHNELLER LLCInventors: Matthew A. Harthcock, Robert G. Pierson, Mark D. Tennant, Donald A. Meltzer
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Patent number: 9492988Abstract: Soft touch fire retardant laminates with PVC middle layers, foamed or unfoamed, and multiblock copolymer or polyurethane or silicone top layers which meet FAA requirements are disclosed.Type: GrantFiled: March 14, 2014Date of Patent: November 15, 2016Assignee: SCHNELLER LLCInventors: Matthew A. Harthcock, Robert G. Pierson, Mark D. Tennant, Donald A. Meltzer
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Patent number: 8507594Abstract: Disclosed herein is a flame retardant thermoplastic resin composition including a polycarbonate resin, a branched acrylic copolymer, and a flame retardant. The flame retardant thermoplastic resin composition can have good compatibility as well as good flame retardancy, scratch resistance, colorability and appearance without requiring the addition of a compatibilizer.Type: GrantFiled: September 17, 2010Date of Patent: August 13, 2013Assignee: Cheil Industries Inc.Inventors: Kee Hae Kwon, Il Jin Kim
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Patent number: 7718756Abstract: A process for preparing a polybromoaryl ether, comprising adding to a solvent for the polybromoaryl ether a mixture of (1) at least one compound of the structure HO—Ar—X1, X2, X3, X4, X5, wherein Ar is an aryl group and X1, X2, X3, X4, and X5 are independently selected from hydrogen and bromine, provided that at least one of X1, X2, X3, X4, and X5 is bromine, (2) at least one alkali or alkaline metal hydroxide, and (3) at least one polymerization initiator, wherein the solvent for the polybromoaryl ether is a non-solvent for alkali metal bromides.Type: GrantFiled: April 14, 2009Date of Patent: May 18, 2010Assignee: Chemtura CorporationInventors: Larry D. Timberlake, William R. Fielding, Sumit Mathur, Mark V. Hanson
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Patent number: 7645845Abstract: A process for producing a polymer by polymerizing at least one fluorinated monomer in the presence of a radical initiator and a surfactant in a polymerization medium containing essentially only carbon dioxide. The surfactant is a functional (per)fluoropolyether having recurring units (R1) and at least one functional group containing a heteroatom other than fluorine, the recurring units containing at least one ether linkage in the main chain and at least one fluorine atom. Molded article containing the polymer obtained from the process.Type: GrantFiled: June 29, 2006Date of Patent: January 12, 2010Assignee: Solvay Solexis S.p.A.Inventors: Marco Apostolo, Valeri Kapeliouchko, Alessandro Galia, Onofrio Scialdone, Giuseppe Filardo
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Patent number: 7550551Abstract: A process for preparing a polybromoaryl ether comprising adding to a solvent for the polybromoaryl ether a mixture of (1) at least one compound of the structure HO—Ar—X1, X2, X3, X4, X5, wherein Ar is an aryl group and X1, X2, X3, X4, and X5 are independently selected from hydrogen and bromine, provided that at least one of X1, X2, X3, X4, and X5 is bromine, (2) at least one alkali or alkaline metal hydroxide, and (3) at least one polymerization initiator, wherein the solvent for the polybromoaryl ether is a non-solvent for alkali metal bromides.Type: GrantFiled: August 16, 2007Date of Patent: June 23, 2009Assignee: Chemtura CorporationInventors: Larry D. Timberlake, William R. Fielding, Sumit Mathur, Mark V. Hanson
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Patent number: 7214729Abstract: Disclosed is a flame retardant lighting assembly comprising thermoplastic insulation, plugs and sockets. The thermoplastic resin is for example polypropylene homopolymer and comprises a synergistic combination of an N-alkoxyoxy hindered amine and a conventional organohalogen flame retardant. The addition of low levels of acid scavengers such as hydrotalcites is advantageous.Type: GrantFiled: September 30, 2003Date of Patent: May 8, 2007Assignee: Ciba Specialty Chemicals Corp.Inventors: Nikolas Kaprinidis, Nicola Lelli
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Patent number: 7067569Abstract: The invention relates to a synergistic mixture comprising a) at least one compound selected from the group consisting of the phosphites of the formula (I) to (V), of the phosphonites of the formulae (VI) to (IX) and (XV), of the di/oligophosphonites of the formulae (X) and (XI) and of the phosphinites of the formulae (XII) to (XIV), and b) at least one compound selected from the group consisting of the phosphanes of the formula (XVI), the di/oligophosphanes of the formulae (XVII) and (XVIII), and of the cyclophosphanes of the formula (XIX), and also to a process for stabilizing polymers with respect to thermooxidative degradation by addition and incorporation of a synergistic mixture of this type.Type: GrantFiled: July 13, 2001Date of Patent: June 27, 2006Assignee: Clariant Finance (BVI) LimitedInventor: Peter Staniek
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Patent number: 6689825Abstract: A thermoplastic resin composition with improved flame retardance, flow and heat deflection temperature includes a thermoplastic resin; resorcinol diphenyl phosphate; and an additive blend. The additive blend includes a combination of melamine polyphosphate and ferrocene. The thermoplastic composition reduces the amounts of resorcinol diphenyl phosphate required for effective flame retardancy. Moreover, the effective amounts of melamine polyphosphate and ferrocene do not deleteriously affect other properties of the thermoplastic composition such as Izod strength, flow properties, and heat deflection temperatures. A process for manufacturing a thermoplastic composition is also disclosed.Type: GrantFiled: November 27, 2002Date of Patent: February 10, 2004Assignee: General Electric CompanyInventors: Chandra S. Bajgur, William Pecak, Radhakrishna Arakali
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Patent number: 6596794Abstract: Thermoplastic moulding compositions based on polycarbonate and/or polyester-carbonate comprising graft polymer prepared by means of bulk, solution or bulk-suspension polymerization processes and phosphorus compounds of the general formula (I)Type: GrantFiled: May 16, 2001Date of Patent: July 22, 2003Assignee: Bayer AktiengesellschaftInventors: Thomas Eckel, Michael Zobel, Bernd Keller, Dieter Wittmann
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Patent number: 6531525Abstract: An abherent composition which contains (A) a compound having C4-C20 perfluoro-alkyl or alkenyl group, (B) polytetrafluoroethylene having a number-average molecular weight of at most 500,000, and (C) at least one compound selected from the group consisting of a silicone oil, a silicone resin and a highly fluorinated compound having a boiling point of at least 100° C. except those included in the components (A) and (B), is disclosed. This composition prevents various articles from adhering to each other and is suitable as a mold release agent, an anti-blocking agent, a stripping agent for an electrical wire and the like.Type: GrantFiled: December 22, 1995Date of Patent: March 11, 2003Assignee: Daikin Industries, Ltd.Inventors: Masayuki Yamana, Tsukasa Aga
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Patent number: 6140399Abstract: The invention relates to a polymeric composition comprising at least one engineering polymer and at least one phosphate ester flame retardant additive which is characterized in that the phosphate ester is a mixed tri (tertiary butylphenyl) phosphate ester which comprises from 1 to 45% by weight of tri (tertiary butylphenyl) phosphate; from 10 to 55% by weight of di tertiary butylphenyl mono phenyl phosphate; from 10 to 60% by weight of mono tertiary butylphenyl diphenyl phosphate and less than 10% by weight of triphenyl phosphate.Type: GrantFiled: February 3, 1999Date of Patent: October 31, 2000Assignee: Great Lakes Chemical (Europe) GmbHInventor: Sheila Munro
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Patent number: 5864004Abstract: A flame retardant resin composition having improved heat distortion temperature and mechanical properties comprising 5-20 parts by weight of phosphate-based flame retardant and 0.01-10 parts by weight of tetrafluoroethylene powder per 100 parts by weight of PC/ABS which comprises 5-95% by weight of polycarbonate and 5-95% by weight of acrylonitrile-butadiene-styrene copolymer, characterized in that said phosphate-based flame retardant is oligomeric phosphate ester of the following formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent cresyl group; n=1 to 3; and X is derived from dihydric bisphenol A and represented by the following formula II. ##STR2## The resin composition according to the invention may be applied to the indoor applications such as the housing of domestic electric appliances, the interior decoration of automobiles, or the like.Type: GrantFiled: March 25, 1998Date of Patent: January 26, 1999Assignee: Samyang CorporationInventors: Sung Ryong Kim, Young Joon Choi, Jun Seob Song
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Patent number: 5852087Abstract: Easily dyeable meta-linkage-containing aromatic polyamide fibers consisting of a composition which comprises a meta-linkage-containing aromatic polyamide incorporating a quaternary onium salt of an alkylbenzenesulfonic acid. They are easily dyeable with cationic dyes, and thus may be used in the fields of bedding, clothing and interior decoration.Type: GrantFiled: December 20, 1996Date of Patent: December 22, 1998Assignee: Teijin LimitedInventors: Akihiro Ohba, Koki Sasaki
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Patent number: 5705599Abstract: Graft polymers of ketone-aldehyde condensation and co-condensation products and/or the monovalent or polyvalent metal compounds thereof are described, in which condensation product consistsa) of symmetrical or asymmetrical ketones containing aliphatic, araliphatic, cyclic or aromatic hydro-carbon radicals with at least one nonaromatic radical,b) an aldehyde of the formula R--(CHO).sub.n, wherein n=1 to 2 and R can be hydrogen or an aliphatic, araliphatic, aromatic or heterocyclic radical, andc) optionally of carboxyl, sulpho, sulphamido, sulphoxy, sulphoalkylamine or sulphoalkyloxy groups,to which product anionic and/or nonionic and/or cationic unsaturated monomers have been grafted. These graft polymers are outstandingly suitable as dispersants for inorganic binder suspensions and solutions, for aqueous clay suspensions and solutions or coal/water suspensions, as retention agents, thickeners, in particular for aqueous systems, and as agents for preventing the swelling of clay in aqueous systems.Type: GrantFiled: December 29, 1995Date of Patent: January 6, 1998Assignee: SKW Trostberg AktiengesellschaftInventors: Josef Felixberger, Johann Plank
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Patent number: 5556903Abstract: Flame retarding resin compositions having good thermal stability and good impact resistance. The composition comprises a thermoplastic resin selected from the group of polycarbonate, polybutylene terephthalate, polyethylene terephthalate, and blends and alloys of polycarbonate with polybutylene terephthalate, polyethylene terephthalate and acrylonitrile-butadiene-styrene, and a flame retarding amount of a melt-blendable, solid polybrominated triphenyl phosphate ester selected from tris(dibromophenyl)phoshate and bis(tribromophenyl)phenylphosphate, and less than 5% antimony oxide or halogenated organic.Type: GrantFiled: November 18, 1994Date of Patent: September 17, 1996Assignee: FMC CorporationInventor: Joseph Green
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Patent number: 5412014Abstract: A free-flowing silicone polymer powder, said powder having an average particle size of 1 to 1000 microns and being prepared by mixing a polydiorganosiloxane with a silica filler, and a phosphorus-based fire retardant compound are uniformly dispersed in an organic resin using conventional equipment, such as a single screw extruder. The resulting resin composition shows a significant improvement in fire retardancy but does not exhibit the severe deterioration of impact resistance incurred when the resin is modified with only phosphorus-based fire retardant.Type: GrantFiled: October 26, 1993Date of Patent: May 2, 1995Assignee: Dow Corning CorporationInventor: David J. Romenesko
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Patent number: 5393812Abstract: A flame retardant, light stable composition, prepared from a polyolefin, a halogenated hydrocarbyl phosphate or phosphonate ester flame retardant, and an alkoxyamine functional hindered amine light stabilizer. Suitable forms, in which the composition may be provided, include fibers, and fabrics prepared from such fibers.Type: GrantFiled: August 31, 1993Date of Patent: February 28, 1995Assignee: Hercules IncorporatedInventors: Charla S. Haley, William L. Sanchez
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Patent number: 5364898Abstract: Improved thermoplastic compositions characterized by high tensile elongation values are described. They comprise polyphenylene ether resin, a hydrogenated elastomeric block copolymer having an A-B-A' structure, with specific molecular weight values for the copolymer blocks and a phenylsiloxane fluid of particular composition. Electrical conductor articles which include polymerized thermoplastic compositions as mentioned above represent another embodiment of this invention.Type: GrantFiled: December 14, 1993Date of Patent: November 15, 1994Assignee: General Electric CompanyInventors: Gim F. Lee, Jr., Kevin M. Snow
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Patent number: 5302647Abstract: A flame retardant resin composition which includes the following component (A) and component (B) blended in the ratio (A):(B)=100:1-40 parts by weight. Component (A) is a thermoplastic resin including 0-70% by weight of a rubber component and 100-30% by weight of a polymer component formed from monomers comprising a methylated aromatic vinyl monomer and an hydroxylated aromatic vinyl monomer and, optionally, an aromatic vinyl monomer other than the above monomers, a cyanated vinyl monomer, a (meth)acrylic acid ester monomer, maleic anhydride, and a maleimide monomer; graft ratio of the thermoplastic resin being 10-150% when the rubber component is used. Component (B) is a flame retarder.Type: GrantFiled: July 12, 1991Date of Patent: April 12, 1994Assignee: DSM N.V.Inventors: Masanori Suzuki, Hiroyuki Itoh, Masaaki Mawatari, Tateki Furuyama
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Patent number: 5294655Abstract: Improved thermoplastic compositions characterized by high tensile elongation values are described. They comprise polyphenylene ether resin, a hydrogenated elastomeric block copolymer having an A-B-A' structure, with specific molecular weight values for the copolymer blocks and a phenylsiloxane fluid of particular composition. Electrical conductor articles which include polymerized thermoplastic compositions as mentioned above represent another embodiment of this invention.Type: GrantFiled: May 15, 1992Date of Patent: March 15, 1994Assignee: General Electric CompanyInventors: Gim F. Lee, Jr., Kevin M. Snow
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Patent number: 5272193Abstract: Thermoplastic polycarbonate moulding compounds containing 40 to 90 parts by weight of a thermoplastic aromatic polycarbonate; 0 to 80 parts by weight of a copolymer or polycondensate consisting of 0 to 50 parts by weight of a thermoplastic copolymer of 50 to 95% by weight of styrene, .alpha.-methylstyrene, styrene alkylated in the nucleus, halogenated styrene or mixtures thereof and 5 to 50% by weight of acrylonitrile, methacrylonitrile, alkyl acrylate, alkyl methacrylate, maleic acid anhydride, N-substituted maleiimide, vinyl acetate or mixtures thereof and/or 0 to 80 parts by weight of a thermoplastic polyalkylene terephthalate; 1 to 25 parts by weight of graft polymer prepared from 5 to 90 parts by weight of a mixture of: 50 to 95% by weight of styrene, .alpha.Type: GrantFiled: June 29, 1992Date of Patent: December 21, 1993Assignee: Bayer AktiengesellschaftInventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott
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Patent number: 5234980Abstract: There is provided a fire retardant polycarbonate resin composition comprising a polycarbonate resin, a specific partially esterified phosphoric acid metal salt and a specific partially esterified phosphoric acid in specific proportions. The polycarbonate resin composition can provide a transparent molded article which are excellent in fire retardance and heat stability.Type: GrantFiled: June 30, 1992Date of Patent: August 10, 1993Assignee: Teijin Chemicals, Ltd.Inventor: Yoji Ohira
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Patent number: 5234979Abstract: The present invention relates to thermoplastic moulding compositions consisting of halogen-free polycarbonates, halogen-free polystyrene and/or halogen-free copolymers of styrene with acrylonitrile, halogen-free phosphorus compounds of the formula I ##STR1## and tetrafluoroethylene polymers, and, if appropriate, other known additives.Type: GrantFiled: January 25, 1988Date of Patent: August 10, 1993Inventors: Gert Todtemann, Klaus Reinking
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Patent number: 5137953Abstract: The invention relates to thermoplastic molding compounds containing thermoplastic aromatic polycarbonates, thermoplastic copolymers, optionally graft polymers and/or tetrafluoroethylene polymers and/or silicone resins, characterized in that they contain phosphorus compounds corresponding to formula (I) ##STR1## in which R is a --CH.sub.2 --, ##STR2## group and the aromatic radicals may even be alkyl-substituted.Type: GrantFiled: December 4, 1990Date of Patent: August 11, 1992Assignee: Bayer AktiengesellschaftInventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott, Jochen Schoeps, Horst Peters, Werner Ballas
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Patent number: 5084213Abstract: Composition of heterohalogenated cyclododecatriene (e.g. C.sub.12 H.sub.18 Br.sub.x Cl.sub.y) are disclosed and methods for preparation thereof.Type: GrantFiled: March 5, 1990Date of Patent: January 28, 1992Assignee: Ethyl CorporationInventor: Paul F. Ranken
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Patent number: 5079299Abstract: This invention provides a mold release composition copmrising (1) a compound or a polymer having at least one of perfluoroalkyl groups having 4 to 20 carbon atoms and perfluoroalkenyl groups having 4 to 20 carbon atoms, and (2) a ladder polymer of organosilsesquioxane.Type: GrantFiled: July 16, 1989Date of Patent: January 7, 1992Assignee: Daikin Industries, Ltd.Inventors: Iwao Hisamoto, Masayoshi Shinjyo, Seiji Takubo, Yasuko Katakura
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Patent number: 5079283Abstract: A flame-retardant polypropylene composition comprises a modified polypropylene-based polymer, antimony oxide or sodium antimonate, and a halogenated organic compound or, in lieu thereof, a phosphorous-containing compound. The polypropylene-based polymer is modified in the presence of a free-radical generator source which typically is an organic peroxide so that it has a narrow polydispersity range, improved flow, and lower compounding and molding temperatures so that temperature-sensitive components are protected from thermal degradation. The modification of the polypropylene-based polymer generally occurs in situ in the processing apparatus and the composition can also contain various fillers, fibers, and the like.Type: GrantFiled: March 26, 1990Date of Patent: January 7, 1992Assignee: Ferro CorporationInventors: Neil A. Burditt, Deenadayalu Chundury
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Patent number: 5059646Abstract: An improved thermoplastic resin composition is described, containing polyphenylene ether resin, polyamide resin, and certain organophosphorus compounds. Particular examples of the organophosphorus compounds are dimethyloxazolinylmethylbisvinylphenyl phosphate and bis(dimethyloxazolinylmethyl)vinylphenyl phosphate. The compositions are characterized by excellent mechanical properties and oil resistance.Type: GrantFiled: December 13, 1989Date of Patent: October 22, 1991Assignee: General Electric Co.Inventors: Masataka Morioka, Hiromi Ishida
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Patent number: 5030675Abstract: Flame-resistant molding compounds of polycarbonate, polyalkylene terephthalate, graft polymer, fluorinated polyolefine and phosphorus compound can be worked up into moulded products which have a particularly advantageous combination of joint line strength, dimensional stability under heat and toughness.Type: GrantFiled: December 13, 1989Date of Patent: July 9, 1991Assignee: Bayer AktiengesellschaftInventors: Dieter Wittmann, Hans-Jurgen Kress, Horst Peters, Josef Buekers, Christian Lindner
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Patent number: 5013776Abstract: A flame-retardant polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin and 0.001 to 5.0 parts by weight of at least one metal salt of an organic phosphoric acid ester represented by the following general formula [I] ##STR1## wherein R.sub.1 and R.sub.2, independently from each other, represent an alkyl or aryl group which is substituted or unsubstituted by halogen, at least one of R.sub.1 and R.sub.2 is an aryl group and when both R.sub.1 and R.sub.2 are aryl groups, they may be bonded to each other either directly or through an alkylene group or may form one fused ring, and M represents an alkali metal, and optionally 0.01 to 2.0 parts by weight of a micro-fibrous polytetrafluoroethylene.Type: GrantFiled: May 16, 1989Date of Patent: May 7, 1991Assignee: Teijin Chemicals, Ltd.Inventors: Kouji Ishihata, Youichi Hironaka, Hisanaga Shimizu, Kazuo Kitamura, Takeshi Imagawa
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Patent number: 5011736Abstract: 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: December 29, 1989Date of Patent: April 30, 1991Assignee: General Electric Co.Inventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
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Patent number: 4992496Abstract: It was unexpectedly found that a brominated phosphate ester, tris(2,4-dibromophenyl)phosphate when employed in flame retardant quantities in a modified polyphenylene oxide resin resulted in discoloration of the resin on aging. Neither phosphate esters, flame retardants nor brominated flame retardants when employed separately as flame retardants caused similar discoloration. The use of epoxy compounds counteracted this color stability problem.Type: GrantFiled: September 3, 1987Date of Patent: February 12, 1991Assignee: FMC CorporationInventor: Joseph Green
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Patent number: 4945018Abstract: Curable flame retardant mixtures of a polyolefin (non-rubbery), a polyphenylene ether resin, an aromatic phosphate, a brominated compound or polymer, and a crosslinking agent are described. Electrically conductive articles having insulation material made of the composition and methods for preparing such articles are also disclosed.Type: GrantFiled: February 27, 1989Date of Patent: July 31, 1990Assignee: General Electric CompanyInventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
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Patent number: 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: 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: 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: 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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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: 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: 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: 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: 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: 4710530Abstract: Polybromotriphenyl phosphates provide excellent flame retardancy for styrene modified polyphenylene ether molding resins, and provide flame retardant composition thereof which exhibit desirable processing characteristics, excellent impact strength, high heat distortion temperature, and minimal tendency toward stress cracking.Type: GrantFiled: May 1, 1986Date of Patent: December 1, 1987Assignee: FMC CorporationInventor: Joseph Green
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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: 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: 4617325Abstract: An antistatic agent for polymers, particularly polyurethanes is disclosed comprising an ionizable metal salt and an enhancer comprising a phosphate ester.Type: GrantFiled: July 2, 1985Date of Patent: October 14, 1986Assignee: The Dow Chemical CompanyInventors: Thomas M. Knobel, Earl E. Kennedy, Mary A. Walker