From Sulfur-containing Reactant Patents (Class 524/609)
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Patent number: 4703081Abstract: A ternary polymer alloy containing a poly(arylene sulfide), a poly(amide imide), and at least one of a poly(aryl ketone) and a poly(aryl sulfone). The polymer alloy optionally can contain a fibrous reinforcing material such as a glass fiber.Type: GrantFiled: April 8, 1986Date of Patent: October 27, 1987Assignee: Phillips Petroleum CompanyInventors: Jennings P. Blackwell, William H. Beever
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Patent number: 4703074Abstract: A polyphenylene sulfide resin composition comprising (1) a polyphenylene sulfide resin having a melt flow value of at least 1,000 g/min., (2) silicic acid and/or a silicate, and (3) a silane compound composed of a vinylsilane and an aminosilane and/or an epoxysilane.Type: GrantFiled: May 16, 1986Date of Patent: October 27, 1987Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hitoshi Izutsu, Toshihide Yamaguchi
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Patent number: 4690972Abstract: Compositions comprising a poly(arylene sulfide) which crystallizes to a fine-grained crystalline morphology are provided. A method is also provided for treating compositions comprising a poly(arylene sulfide) by incorporation of a crystalline morphology altering additive, heating the resulting mixture above the melting point of the poly(arylene sulfide) and cooling the mixture at a rate of less than 50.degree. C. per minute. Exemplary additives include a poly(arylene sulfide-ketone) and a polyaryl ketone.Type: GrantFiled: April 4, 1986Date of Patent: September 1, 1987Assignee: Phillips Petroleum CompanyInventors: Timothy W. Johnson, William H. Beever, James E. O'Connor, Jennings P. Blackwell
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Patent number: 4680326Abstract: Poly(arylene sulfide) compositions are disclosed having a combination of good cracking resistance and electrical insulation resistance. Such compositions have a variety of uses including uses in molded electrical components.Type: GrantFiled: July 29, 1986Date of Patent: July 14, 1987Assignee: Phillips Petroleum CompanyInventors: John E. Leland, James S. Dix, Roy F. Wright
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Patent number: 4678831Abstract: A block copolymer comprising a polyphenylenesulfide portion and a polysulfone portion, and having a logarithmic viscosity [.eta.] in the range of 0.03 to 1.0, said logarithmic viscosity [.eta.] being a value calculated by the following equation from a relative viscosity measured at 206.degree. C. for a solution of a polymer in .alpha.-chloronaphthalene in a polymer concentration of 0.4 g/100 ml.[.eta.]=ln (relative viscosity)/polymer concentration;and a resin composition comprising a block copolymer composed of a polyphenylenesulfide portion and a polysulfone portion, polyphenylenesulfide and/or polysulfone, and if required, a filler.Type: GrantFiled: March 28, 1986Date of Patent: July 7, 1987Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Juheiji Kawabata, Toshinori Sugie, Fumihiro Kobata, Akira Hirayama
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Patent number: 4626564Abstract: An aromatic polysulfone resin composition comprising from 30% to 95% by weight of an aromatic polysulfone and from 5% to 70% by weight of a potassium titanate fiber having not more than 0.25% by weight of a free potassium content is disclosed. The composition has improved heat resistance, strength, rigidity and, in particular, does not undergo gelation during melting.Type: GrantFiled: December 9, 1985Date of Patent: December 2, 1986Assignee: Sumitomo Chemical Company, Ltd.Inventors: Teruo Saito, Kazuo Hieda
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Patent number: 4623689Abstract: An aqueous colored polymer is provided, which comprises (a) a homopolymer of an ethylenically unsaturated sulfonic acid or its salt or (b) a copolymer of an ethylenically unsaturated sulfonic acid or its salt with other ethylenically unsaturated monomer, said homopolymer or copolymer being dyed with a basic dye and having a lowest film-forming temperature of not higher than 35.degree. C. The aqueous colored polymer is prepared by polymerizing an ethylenically unsaturated sulfonic acid or its salt, or its mixture with other ethylenically unsaturated monomer by an aqueous solution or emulsion polymerization procedure at a temperature of not higher than 100.degree. C. in a specified amount of water and then adding a basic dye to the resulting polymer solution or emulsion, or carrying out this solution or emulsion polymerization in the presence of a basic dye. The aqueous polymer is useful as an aqueous ink such as an ink for the ink jet recording.Type: GrantFiled: June 27, 1984Date of Patent: November 18, 1986Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Takashi Shintani, Noriaki Emura, Tetsuo Tanaka, Yasuhiro Oda
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Patent number: 4609699Abstract: This invention relates to polyarylene sulphides (PPS) produced in known manner from optionally substituted halogen benzenes and aromatic polyhalogen compounds, optionally in combination with other polymers, fillers and/or reinforcing fibres, which contain certain N-containing organic bases for reducing the elimination levels of acidic, corrosion-producing volatile constituents and for improving the flow properties thereof.Type: GrantFiled: October 22, 1984Date of Patent: September 2, 1986Assignee: Bayer AktiengesellschaftInventors: Rolf-Volker Meyer, Klaus Reinking, Karsten-Josef Idel, Rolf Dhein
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Patent number: 4607095Abstract: In one embodiment this invention provides a nonlinear optical substrate which comprises a transparent film of an external field-induced noncentrosymmetric macroscopic orientation of poly[[benzo(1,2-d:5,4-d')bisthiazole-2,6-diyl]-1,4-phenylene] molecules: ##STR1##Type: GrantFiled: March 5, 1985Date of Patent: August 19, 1986Assignee: Celanese CorporationInventor: James E. Kuder
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Patent number: 4605733Abstract: A polyarylene sulfide is prepared in a reaction mixture containing a dihaloaromatic compound, a sulfur source, a polar organic compound and an alkali metal or alkaline earth metal dithionite. The presence of dithionite in the reaction mixture enables the production of polymer and products therefrom having a reduced Tmc and enhanced heat stability.Type: GrantFiled: August 31, 1984Date of Patent: August 12, 1986Assignee: Phillips Petroleum CompanyInventor: Guy Senatore
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Patent number: 4551493Abstract: Transparent flame-retardant poly(arylether-arylsulfone) molding materials preferably contain not less than 50% by weight of units of the formula ##STR1## and, as a flameproofing agent, from 0.1 to 10% by weight, based on the weight of poly(arylether-arylsulfone), of a poly(2,6-dibromophenylene 1,4-oxide) having a molecular weight of from 1000 to 20000, and, if required, a heat stabilizer.The molding materials are useful for the production of shaped articles, films and fibers.Type: GrantFiled: February 21, 1984Date of Patent: November 5, 1985Assignee: BASF AktiengesellschaftInventors: Gerd Blinne, Volker Muench
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Patent number: 4550140Abstract: Circuit board substrates prepared from poly(aryl ether)s which contain repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS) exhibit adequate glass transition temperatures (Tg), acceptable plateability and acceptable resistance to water absorption.Type: GrantFiled: March 20, 1984Date of Patent: October 29, 1985Assignee: Union Carbide CorporationInventors: Stephen B. Rimsa, James E. Harris, Herbert S. Chao, Louis M. Maresca
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Patent number: 4548977Abstract: A process for producing poly(arylene sulfide) resin slurries exhibiting easier handling and improved performance properties suitable for coating, molding, etc. comprising mixing the polymer with a nonionic surfactant in the absence of a liquid diluent and then blending the resulting admixture with a reinforcing material in a liquid diluent.Type: GrantFiled: December 6, 1984Date of Patent: October 22, 1985Assignee: Phillips Petroleum CompanyInventor: Aubrey South, Jr.
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Patent number: 4544700Abstract: A poly(arylene sulfide) composition containing a minor amount of low-density polyethylene. In applications such as poly(arylene sulfide) reinforced molding compositions, the invention composition will generally contain a poly(phenylene sulfide), a reinforcing material such as glass or carbon fibers, and from about 0.1 to about 10 weight percent, based on the weight of the composition, of an ethylene polymer having a density of from about 0.910 to about 0.940 g/cc and a melt index of greater than 100 g/10 min.Type: GrantFiled: April 16, 1984Date of Patent: October 1, 1985Assignee: Phillips Petroleum CompanyInventor: Roy F. Wright
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Patent number: 4544701Abstract: A pair of substantially identical half-sections adapted to be wedged around a rod in locked position with the half-sections stamp molded from a prepreg formed by surrounding at least one fiber mat of inorganic reinforcing material with a matrix of PPS to produce a prepreg containing from about 15 to about 45 weight percent of the inorganic reinforcing material.Type: GrantFiled: March 28, 1984Date of Patent: October 1, 1985Assignee: Phillips Petroleum CompanyInventors: John H. Walker, Harold V. Wood
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Patent number: 4528310Abstract: Properties such as flow rate and hydrolytic stability of glass-filled polyarylene sulfide compositions can be modified by the addition of certain organosilanes.Type: GrantFiled: September 27, 1982Date of Patent: July 9, 1985Assignee: Phillips Petroleum CompanyInventor: Jennings P. Blackwell
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Patent number: 4521589Abstract: A linear poly(3-alkyl-2,5-thienylene) polymer having the formula: ##STR1## wherein R represents a lower alkyl group and n is 20 to 100. The polymer can be used to provide a semiconductor. A method for making the polymer comprises reacting 3-alkyl-2,5-dihalogenated thiophene with magnesium in an inert solvent in the substantial absence of water, in the presence of a nickel compound as a catalyst in an inert atmosphere.Type: GrantFiled: January 4, 1984Date of Patent: June 4, 1985Assignee: Tokyo Institute of TechnologyInventors: Takakazu Yamamoto, Akio Yamamoto, Kenichi Sanechika
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Patent number: 4504551Abstract: At least one of certain silanes is added to a poly(arylene sulfide) composition. The silane increases the electrical insulation resistance of the composition.Type: GrantFiled: April 28, 1983Date of Patent: March 12, 1985Assignee: Phillips Petroleum CompanyInventor: John E. Leland
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Patent number: 4503168Abstract: Described herein is cookware made from a select polyarylethersulfone. The cookware can be used in essentially all cooking oven applications. Also described is a composition suitable for making cookware wherein the composition contains greater than 50 weight percent of the polyarylethersulfone.Type: GrantFiled: May 25, 1983Date of Patent: March 5, 1985Assignee: Union Carbide CorporationInventor: Tyler F. Hartsing, Jr.
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Patent number: 4497728Abstract: A conductive pyrolytic product obtained by thermally treating specific types of heat-resistant polymers including polyamide-imide, an aromatic polymer having a heterocyclic ring of a specific type and an aromatic polyamide under certain temperature and atmospheric conditions. A conductive composition using the pyrolytic product in the form of a powder is also disclosed.Type: GrantFiled: May 19, 1983Date of Patent: February 5, 1985Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Susumu Yoshimura, Mutsuaki Murakami
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Patent number: 4490499Abstract: Aluminum flake can be dispersed advantageously in a mixture of ethylene glycol and ethylene glycol monobutyl ether for use in solvent-based dispersions of poly(arylene sulfide) and optionally fluorocarbon.Type: GrantFiled: November 28, 1983Date of Patent: December 25, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventor: Jozef T. Huybrechts
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Patent number: 4490505Abstract: In the manufacture of magnetic recording media, coatings are applied from water-borne dispersions of inorganic particles, a polymer containing functional groups and an agent for crosslinking the polymer, the crosslinking agent being a polyfunctional aziridine such as ##STR1##Type: GrantFiled: March 16, 1981Date of Patent: December 25, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventor: Daniel B. Pendergrass, Jr.
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Patent number: 4489181Abstract: Compositions of an aromatic polycarbonate, a polysulfone carbonate and a filler are disclosed which have good electrical properties, high modulus and molten solder resistance.Type: GrantFiled: November 7, 1983Date of Patent: December 18, 1984Inventors: Daniel W. Fox, Robert R. Gallucci, Edward N. Peters, Gary F. Smith
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Patent number: 4489129Abstract: Reinforcements such as, for example, carbon fibers, are coated with a poly(arylene sulfide). The poly(arylene sulfide) is cured in place on the reinforcement. The reinforcement can be used in compositions such as, for example, poly(arylene sulfide) compositions.Type: GrantFiled: July 22, 1982Date of Patent: December 18, 1984Assignee: Phillips Petroleum CompanyInventors: Robert S. Shue, Faber B. Jones
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Patent number: 4487879Abstract: A filled arylene sulfide polymer composition is provided in which at least 30 weight percent of the total composition is arylene sulfide polymer, up to about 65 weight percent of the total composition is filler material chosen from glass filler and at least one mineral filler and containing a property modifying amount of up to about 12 weight percent of the total composition of a solid, resinous butadiene/styrene block compolymer having the vinyl content in the range of about 10 to about 14 percent based on the polybutadiene segment of the copolymer.Type: GrantFiled: September 20, 1982Date of Patent: December 11, 1984Assignee: Phillips Petroleum CompanyInventor: Donald G. Needham
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Patent number: 4482665Abstract: Electronic components are encapsulated with a calcium silicate-containing poly(arylene sulfide) composition. The composition can also contain a filler such as talc or silica and an organosilane such as 3-mercaptopropyltrimethoxysilane.Type: GrantFiled: September 14, 1982Date of Patent: November 13, 1984Assignee: Phillips Petroleum CompanyInventor: James S. Dix
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Patent number: 4481313Abstract: A process for instantaneous peptization of chloroprene-sulfur copolymer comprising contacting a latex of said copolymer with a peptization system comprising tetraethyl thiuram disulfide and mercaptobenzothiazole.Type: GrantFiled: December 6, 1982Date of Patent: November 6, 1984Assignee: Denka Chemical CorporationInventors: Edward M. Banta, Kenneth D. Fitzgerald
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Patent number: 4481324Abstract: Enhanced lubricating properties and good heat stability upon processing are imparted to thermoplastic materials such as polyvinyl chloride, polypropylene and acrylonitrile-butadiene-styrene resins by the incorporation therein of a polyglycerol ester of a C.sub.8 to C.sub.22 fatty acid. The ester is characterized by a degree of polymerization ranging from 2 to 8 and a degree of acid substitution ranging from 1 to 10.Type: GrantFiled: February 25, 1983Date of Patent: November 6, 1984Assignee: Glyco Inc.Inventors: Larry K. Hall, Marvin Rosen
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Patent number: 4476265Abstract: Poly(arylene sulfide) compositions are pigmented with black carbonaceous pigments selected from at least one of finely divided bituminious coal, carbonized rice hulls, bone blacks, and micropulverized petroleum coke in an amount sufficient to provide the black pigmentation desired with little or no deleterious effect on the mechanical properties such as flexural and tensile strengths of the resin.Type: GrantFiled: August 25, 1983Date of Patent: October 9, 1984Assignee: Phillips Petroleum CompanyInventor: Jennings P. Blackwell, Jr.
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Patent number: 4474921Abstract: A composition of matter comprising poly(arylene sulfide), fiberglass, and calcium sulfate. A method for producing compositions that is compared with compositions outside of this invention upon molding provide improved insulation resistance and improved surface gloss by admixing calcium sulfate having an average particle size in a range of about 0.5 micron to about 5 microns with poly(arylene sulfide) and fiberglass.Type: GrantFiled: April 13, 1983Date of Patent: October 2, 1984Assignee: Phillips Petroleum CompanyInventor: James S. Dix
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Patent number: 4474922Abstract: The addition of an alkaline earth metal sulfate improves the melt flow properties of highly filled poly(arylene sulfide) compositions.Type: GrantFiled: May 27, 1983Date of Patent: October 2, 1984Assignee: Phillips Petroleum CompanyInventor: Jennings P. Blackwell
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Patent number: 4462929Abstract: A polymer solution is formed from a sulfur- or oxygen-containing aromatic polymer solute such as poly(phenylene sulfide) or poly(phenylene oxide), a Lewis Acid solute derivative (dopant) such as arsenic hexafluoride and a strong acid solvent such as sulfuric acid. Solvents such as fluorosulfonic acid may also serve to generate the dopant. The solutions are especially useful for casting polymer articles.Type: GrantFiled: September 30, 1982Date of Patent: July 31, 1984Assignee: Allied CorporationInventors: Lawrence W. Shacklette, Granville G. Miller, Jane E. Frommer
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Patent number: 4451601Abstract: Properties such as flow rate and hydrolytic stability of glass-filled polyarylene sulfide compositions can be modified by the addition of certain organosilanes.Type: GrantFiled: February 9, 1983Date of Patent: May 29, 1984Assignee: Phillips Petroleum CompanyInventor: Jennings P. Blackwell
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Patent number: 4448918Abstract: An electrical insulation composition containing poly(arylene sulfide), titanium dioxide and 3-mercaptopropyltrimethoxysilane.Type: GrantFiled: October 15, 1982Date of Patent: May 15, 1984Assignee: Phillips Petroleum CompanyInventor: John E. Leland
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Patent number: 4444935Abstract: A composition comprising a thermoplastic resin in admixture with a mold release effective amount of an acrylate.Type: GrantFiled: December 15, 1982Date of Patent: April 24, 1984Assignee: General Electric CompanyInventors: Kenneth F. Miller, Garland G. Lee
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Patent number: 4438234Abstract: A composition comprising a thermoplastic resin and a mold release effective amount of a vinyl ether.Type: GrantFiled: December 15, 1982Date of Patent: March 20, 1984Assignee: General Electric CompanyInventors: Niles R. Rosenquist, Garland G. Lee
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Patent number: 4434263Abstract: The hydrolytic stability of glass-containing poly(arylene sulfide) compositions can be improved by the addition of a fatty acid such as stearic acid. Optionally, the stearic acid can be employed in combination with certain organosilanes such as N-vinylbenzyl-N-2-(trimethoxysilylpropylamino)ethylammonium chloride or mercaptosilanes.Type: GrantFiled: July 20, 1982Date of Patent: February 28, 1984Assignee: Phillips Petroleum CompanyInventor: Jennings P. Blackwell
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Patent number: 4434122Abstract: The heat stability of arylene sulfide resins, such as poly(p-phenylene sulfide) resin, is improved by the addition of cure retarders comprising phenolic amide or ester-based antioxidants. The resin compositions of the invention are particularly applicable for reducing gel formation during melt extrusion.Type: GrantFiled: May 11, 1982Date of Patent: February 28, 1984Assignee: Phillips Petroleum CompanyInventors: Jerry O. Reed, Ronald D. Mathis
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Patent number: 4431758Abstract: A heat resistant resin produced by reacting (A) a polyamideimide resin with (B) an alcohol component and (C) an acid component with heating is soluble in a cresol type solvent and gives coatings excellent in heat resistance, thermal shock resistance, wear resistance, resistance to hydrolysis, etc., suitable for enamelled wire.Type: GrantFiled: March 31, 1982Date of Patent: February 14, 1984Assignee: Hitachi Chemical Company, Ltd.Inventors: Yuichi Osada, Shozo Kasai, Yasunori Okada, Isao Uchigasaki, Toyoji Oshima, Yoshiyuki Mukoyama, Hiroshi Nishizawa
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Patent number: 4426500Abstract: Arylene sulfide polymers such as poly(p-phenylene sulfide) are solubilized (depolymerized) under mild conditions by contact with a solution comprising at least one aromatic hydrocarbon and a Group IIIA metal halide. In a specific embodiment, arylene sulfide polymers are depolymerized to form aryl sulfides. The solution is useful to remove arylene sulfide polymers deposited on process equipment.Type: GrantFiled: August 23, 1982Date of Patent: January 17, 1984Assignee: Phillips Petroleum CompanyInventor: Timothy W. Johnson
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Patent number: 4425467Abstract: Disclosed is a method of making a non-aqueous emulsion from which a polymer can be electrodeposited. A mixture is prepared of about 50 to about 150 parts by weight of a non-aqueous organic, non-electrolizable, non-solvent for the polymer with about 0.8 to about 1.2 parts by weight of a nitrogen-containing base which can be a tertiary amine, an imidazole, or mixture of a tertiary amine and an imidazole. To the mixture is added a solution of 1 part by weight of the polymer which can be a polyamic acid, a polyamide imide, a polyimide, a polyparabanic acid, a polysulfone, or a mixture of these polymers. The polymer is in a non-aqueous, organic, non-electrolizable aprotic solvent such as N-methyl-2-pyrrolidone.Type: GrantFiled: January 21, 1982Date of Patent: January 10, 1984Assignee: Westinghouse Electric Corp.Inventors: William M. Alvino, Timothy J. Fuller
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Patent number: 4425456Abstract: A copolycarbonate molding composition comprising the reaction product of an aromatic diphenol, a bis(4-hydroxyphenyl)biphenyl disulfone and a carbonate source is characterized by its high glass transition temperature. A blend thereof containing an organic acid salt is characterized by its improved flame retardance.Type: GrantFiled: September 28, 1981Date of Patent: January 10, 1984Assignee: Mobay Chemical CorporationInventors: Arthur L. Baron, Sivaram Krishnan, Mark W. Witman, Roger J. White
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Patent number: 4423093Abstract: A method of applying a coating of polyarylene sulphide to a bearing in which an initmate mixture of a polyarylene sulphide with an aryl ester of an aryl alcohol is applied to a bearing blank and subsequently heated to evaporate the ester and cure the coating. The mixture can be a dry powder mixture, a wet powder mixture, a paste, a suspension, a liquid solution or a solid solution. The preferred mixture comprises polyphenylene sulphide and benzyl benzoate.Type: GrantFiled: March 3, 1982Date of Patent: December 27, 1983Assignee: The Glacier Metal Company LimitedInventor: Glyndwr J. Davies
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Patent number: 4421795Abstract: A method of applying a coating of polyarylene sulphide to a cooking utensil in which an intimate mixture of a polyarylene sulphide with an aryl ester of an aryl alcohol is applied to the surface of the utensil and subsequently heated to evaporate the ester and cure the coating. The mixture can be a dry powder mixture, a wet powder mixture, a paste, a suspension a liquid solution or a solid solution. The preferred mixture comprises polyphenylene sulphide and benzyl benzoate.Type: GrantFiled: March 3, 1982Date of Patent: December 20, 1983Assignee: The Glacier Metal Company LimitedInventor: Glyndwr J. Davies
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Patent number: 4415719Abstract: Thermoplastic, branched aromatic polyphosphonates with average molecular weights (number average M.sub.n) of from 11,000 to more than 200,000, obtainable by transesterifying (a) from 97 to 100 moles of at least one diaryl phosphonate, and (b) from 0 to 3 moles of at least one triaryl phosphate--the sum of the moles of (a) and (b) being 100--with (c) from 90 to 99 moles of at least one aromatic dihydroxy compound, and (d) from 0 to 3 moles of at least one aromatic trihydroxy or tetradhydroxy compound--with the proviso that at least one of the components (b) and (d) is present in a quantity of at least 0.001 mole and that, where (b) and (d) are used, the maximum limit on the moles is 3.0.Type: GrantFiled: December 7, 1981Date of Patent: November 15, 1983Assignee: Bayer AktiengesellschaftInventors: Manfred Schmidt, Ludwig Bottenbruch, Dieter Freitag, Klaus Reinking, Harry Rohr, Hans-Dieter Block
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Patent number: 4414385Abstract: A sulfur concrete coating composition is disclosed containing 77-88 weight percent sulfur, 3-10 weight percent DCPD (dicyclopentadiene) and oligomer of cyclopentadiene, 1-15 weight percent of mineral aggregate material and 0-5 weight percent of glass fibers having a length of between 1/2 and 11/2 inches. The composition is useful as a resistant liner to protect pipes and other structures from corrosion and chemical attack.Type: GrantFiled: March 11, 1982Date of Patent: November 8, 1983Assignee: GHA Lock Joint, Inc.Inventor: Harold V. Swanson
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Patent number: 4413081Abstract: The heat stability of arylene sulfide polymers, such as poly(p-phenylene sulfide), is improved by the addition of cure retarders comprising Group 8 metal dihydrocarbyldithiocarbamates.Type: GrantFiled: February 1, 1983Date of Patent: November 1, 1983Assignee: Phillips Petroleum CompanyInventors: Ronald D. Mathis, Jerry O. Reed
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Patent number: 4411853Abstract: The heat stability of arylene sulfide resins, such as poly(p-phenylene sulfide) resin, is improved by the addition of cure retarders comprising certain organotin compounds such as the dialkyltin dicarboxylates. The resin compositions of the invention are particularly applicable for reducing gel formation during melt extrusion.Type: GrantFiled: May 11, 1982Date of Patent: October 25, 1983Assignee: Phillips Petroleum CompanyInventors: Jerry O. Reed, Ronald D. Mathis
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Patent number: 4409351Abstract: Long chained fatty acids as effective mold release agents in thermoplastic resins.Type: GrantFiled: June 15, 1981Date of Patent: October 11, 1983Assignee: General Electric CompanyInventor: Garland G. Lee
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Patent number: 4408000Abstract: A composition comprising a thermoplastic resin, a mold release agent and a mold release enhancing effective amount of a fatty acid.Type: GrantFiled: December 7, 1981Date of Patent: October 4, 1983Assignee: General Electric CompanyInventor: Garland G. Lee