Halogen Patents (Class 524/142)
  • Patent number: 10583636
    Abstract: 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: Grant
    Filed: November 14, 2016
    Date of Patent: March 10, 2020
    Assignee: SCHNELLER LLC
    Inventors: Matthew A. Harthcock, Robert G. Pierson, Mark D. Tennant, Donald A. Meltzer
  • Patent number: 9492988
    Abstract: 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: Grant
    Filed: March 14, 2014
    Date of Patent: November 15, 2016
    Assignee: SCHNELLER LLC
    Inventors: Matthew A. Harthcock, Robert G. Pierson, Mark D. Tennant, Donald A. Meltzer
  • Patent number: 8507594
    Abstract: 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: Grant
    Filed: September 17, 2010
    Date of Patent: August 13, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Kee Hae Kwon, Il Jin Kim
  • Patent number: 7718756
    Abstract: 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: Grant
    Filed: April 14, 2009
    Date of Patent: May 18, 2010
    Assignee: Chemtura Corporation
    Inventors: Larry D. Timberlake, William R. Fielding, Sumit Mathur, Mark V. Hanson
  • Patent number: 7645845
    Abstract: 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: Grant
    Filed: June 29, 2006
    Date of Patent: January 12, 2010
    Assignee: Solvay Solexis S.p.A.
    Inventors: Marco Apostolo, Valeri Kapeliouchko, Alessandro Galia, Onofrio Scialdone, Giuseppe Filardo
  • Patent number: 7550551
    Abstract: 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: Grant
    Filed: August 16, 2007
    Date of Patent: June 23, 2009
    Assignee: Chemtura Corporation
    Inventors: Larry D. Timberlake, William R. Fielding, Sumit Mathur, Mark V. Hanson
  • Patent number: 7214729
    Abstract: 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: Grant
    Filed: September 30, 2003
    Date of Patent: May 8, 2007
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Nikolas Kaprinidis, Nicola Lelli
  • Patent number: 7067569
    Abstract: 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: Grant
    Filed: July 13, 2001
    Date of Patent: June 27, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Peter Staniek
  • Patent number: 6689825
    Abstract: 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: Grant
    Filed: November 27, 2002
    Date of Patent: February 10, 2004
    Assignee: General Electric Company
    Inventors: Chandra S. Bajgur, William Pecak, Radhakrishna Arakali
  • Patent number: 6596794
    Abstract: 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: Grant
    Filed: May 16, 2001
    Date of Patent: July 22, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Eckel, Michael Zobel, Bernd Keller, Dieter Wittmann
  • Patent number: 6531525
    Abstract: 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: Grant
    Filed: December 22, 1995
    Date of Patent: March 11, 2003
    Assignee: Daikin Industries, Ltd.
    Inventors: Masayuki Yamana, Tsukasa Aga
  • Patent number: 6140399
    Abstract: 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: Grant
    Filed: February 3, 1999
    Date of Patent: October 31, 2000
    Assignee: Great Lakes Chemical (Europe) GmbH
    Inventor: Sheila Munro
  • Patent number: 5864004
    Abstract: 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: Grant
    Filed: March 25, 1998
    Date of Patent: January 26, 1999
    Assignee: Samyang Corporation
    Inventors: Sung Ryong Kim, Young Joon Choi, Jun Seob Song
  • Patent number: 5852087
    Abstract: 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: Grant
    Filed: December 20, 1996
    Date of Patent: December 22, 1998
    Assignee: Teijin Limited
    Inventors: Akihiro Ohba, Koki Sasaki
  • Patent number: 5705599
    Abstract: 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: Grant
    Filed: December 29, 1995
    Date of Patent: January 6, 1998
    Assignee: SKW Trostberg Aktiengesellschaft
    Inventors: Josef Felixberger, Johann Plank
  • Patent number: 5556903
    Abstract: 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: Grant
    Filed: November 18, 1994
    Date of Patent: September 17, 1996
    Assignee: FMC Corporation
    Inventor: Joseph Green
  • Patent number: 5412014
    Abstract: 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: Grant
    Filed: October 26, 1993
    Date of Patent: May 2, 1995
    Assignee: Dow Corning Corporation
    Inventor: David J. Romenesko
  • Patent number: 5393812
    Abstract: 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: Grant
    Filed: August 31, 1993
    Date of Patent: February 28, 1995
    Assignee: Hercules Incorporated
    Inventors: Charla S. Haley, William L. Sanchez
  • Patent number: 5364898
    Abstract: 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: Grant
    Filed: December 14, 1993
    Date of Patent: November 15, 1994
    Assignee: General Electric Company
    Inventors: Gim F. Lee, Jr., Kevin M. Snow
  • Patent number: 5302647
    Abstract: 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: Grant
    Filed: July 12, 1991
    Date of Patent: April 12, 1994
    Assignee: DSM N.V.
    Inventors: Masanori Suzuki, Hiroyuki Itoh, Masaaki Mawatari, Tateki Furuyama
  • Patent number: 5294655
    Abstract: 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: Grant
    Filed: May 15, 1992
    Date of Patent: March 15, 1994
    Assignee: General Electric Company
    Inventors: Gim F. Lee, Jr., Kevin M. Snow
  • Patent number: 5272193
    Abstract: 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: Grant
    Filed: June 29, 1992
    Date of Patent: December 21, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott
  • Patent number: 5234979
    Abstract: 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: Grant
    Filed: January 25, 1988
    Date of Patent: August 10, 1993
    Inventors: Gert Todtemann, Klaus Reinking
  • Patent number: 5234980
    Abstract: 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: Grant
    Filed: June 30, 1992
    Date of Patent: August 10, 1993
    Assignee: Teijin Chemicals, Ltd.
    Inventor: Yoji Ohira
  • Patent number: 5137953
    Abstract: 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: Grant
    Filed: December 4, 1990
    Date of Patent: August 11, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott, Jochen Schoeps, Horst Peters, Werner Ballas
  • Patent number: 5084213
    Abstract: 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: Grant
    Filed: March 5, 1990
    Date of Patent: January 28, 1992
    Assignee: Ethyl Corporation
    Inventor: Paul F. Ranken
  • Patent number: 5079299
    Abstract: 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: Grant
    Filed: July 16, 1989
    Date of Patent: January 7, 1992
    Assignee: Daikin Industries, Ltd.
    Inventors: Iwao Hisamoto, Masayoshi Shinjyo, Seiji Takubo, Yasuko Katakura
  • Patent number: 5079283
    Abstract: 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: Grant
    Filed: March 26, 1990
    Date of Patent: January 7, 1992
    Assignee: Ferro Corporation
    Inventors: Neil A. Burditt, Deenadayalu Chundury
  • Patent number: 5059646
    Abstract: 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: Grant
    Filed: December 13, 1989
    Date of Patent: October 22, 1991
    Assignee: General Electric Co.
    Inventors: Masataka Morioka, Hiromi Ishida
  • Patent number: 5030675
    Abstract: 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: Grant
    Filed: December 13, 1989
    Date of Patent: July 9, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter Wittmann, Hans-Jurgen Kress, Horst Peters, Josef Buekers, Christian Lindner
  • Patent number: 5013776
    Abstract: 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: Grant
    Filed: May 16, 1989
    Date of Patent: May 7, 1991
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Kouji Ishihata, Youichi Hironaka, Hisanaga Shimizu, Kazuo Kitamura, Takeshi Imagawa
  • Patent number: 5011736
    Abstract: 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: Grant
    Filed: December 29, 1989
    Date of Patent: April 30, 1991
    Assignee: General Electric Co.
    Inventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
  • Patent number: 4992496
    Abstract: 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: Grant
    Filed: September 3, 1987
    Date of Patent: February 12, 1991
    Assignee: FMC Corporation
    Inventor: Joseph Green
  • Patent number: 4945018
    Abstract: 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: Grant
    Filed: February 27, 1989
    Date of Patent: July 31, 1990
    Assignee: General Electric Company
    Inventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
  • Patent number: 4920166
    Abstract: 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: Grant
    Filed: May 8, 1989
    Date of Patent: April 24, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Norbert Schon, Hans-Jurgen Kress, Herbert Eichenauer, Josef Buekers
  • Patent number: 4912142
    Abstract: 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: Grant
    Filed: November 16, 1988
    Date of Patent: March 27, 1990
    Assignee: The Dow Chemical Company
    Inventors: Robbert M. Vermeulen, Donald M. Maschmeyer
  • Patent number: 4910241
    Abstract: 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: Grant
    Filed: August 25, 1983
    Date of Patent: March 20, 1990
    Assignee: General Electric Company
    Inventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
  • Patent number: 4900768
    Abstract: 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: Grant
    Filed: April 2, 1986
    Date of Patent: February 13, 1990
    Assignee: General Electric Company
    Inventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
  • Patent number: 4889879
    Abstract: 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: Grant
    Filed: July 24, 1987
    Date of Patent: December 26, 1989
    Assignee: Pluess Staufer AG
    Inventors: Henry Seinera, Patricia Luberne, Claude Stock, Patrick Trouve
  • Patent number: 4883835
    Abstract: 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: Grant
    Filed: March 31, 1988
    Date of Patent: November 28, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Norbert Schon, Hans-Jurgen Kress, Herbert Eichenauer, Josef Buekers
  • Patent number: 4808647
    Abstract: 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: Grant
    Filed: July 18, 1986
    Date of Patent: February 28, 1989
    Assignee: General Electric Company
    Inventors: Visvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
  • Patent number: 4803231
    Abstract: 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: Grant
    Filed: October 29, 1985
    Date of Patent: February 7, 1989
    Assignee: Pluess Staufer A. G.
    Inventors: Henri Seinera, Patricia Luberne, Claude Stock, Patrick Trouve
  • Patent number: 4794137
    Abstract: 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: Grant
    Filed: July 24, 1986
    Date of Patent: December 27, 1988
    Assignee: General Electric Company
    Inventors: Roelof van der Meer, Jan Bussink
  • Patent number: 4788238
    Abstract: 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: Grant
    Filed: September 21, 1987
    Date of Patent: November 29, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gert Todtemann, Klaus Reinking, Otto Koch, Kress Hans-Jurgen, Lindner Christian, Friedemann Muller, Horst Peters, Josef Buekers
  • Patent number: 4751260
    Abstract: 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: Grant
    Filed: April 30, 1986
    Date of Patent: June 14, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jurgen Kress, Friedemann Muller, Christian Lindner, Horst Peters, Josef Buekers
  • Patent number: 4721738
    Abstract: 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: Grant
    Filed: October 7, 1985
    Date of Patent: January 26, 1988
    Assignee: Occidental Research Corporation
    Inventors: Jeffrey R. Ellis, Martin B. Dines, deceased
  • Patent number: 4710530
    Abstract: 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: Grant
    Filed: May 1, 1986
    Date of Patent: December 1, 1987
    Assignee: FMC Corporation
    Inventor: Joseph Green
  • Patent number: 4690954
    Abstract: 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: Grant
    Filed: April 28, 1986
    Date of Patent: September 1, 1987
    Assignee: The Dow Chemical Company
    Inventors: David J. Wampfler, Donna J. Fielding, Chester E. Pawloski
  • Patent number: 4681902
    Abstract: 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: Grant
    Filed: November 3, 1986
    Date of Patent: July 21, 1987
    Assignee: BP Chemicals Limited
    Inventors: Alexander W. S. Duncan, David G. Summers, Kenneth C. Thomas
  • Patent number: 4617325
    Abstract: An antistatic agent for polymers, particularly polyurethanes is disclosed comprising an ionizable metal salt and an enhancer comprising a phosphate ester.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: October 14, 1986
    Assignee: The Dow Chemical Company
    Inventors: Thomas M. Knobel, Earl E. Kennedy, Mary A. Walker