Metal Atom Is Part Of An Organic Compound Patents (Class 521/93)
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Patent number: 4496669Abstract: Disclosed is an improved method of making a cellular crosslinked polymer with a metathesis-catalyst system where a metathesis-catalyst is activated with an alkylaluminum iodide compound.In a preferred embodiment, two parts of the metathesis-catalyst system form the basis for two solutions, a catalyst/monomer solution and an alkylaluminum iodide activator/monomer solution. At least one solution also contains a blowing agent. The solutions are combined in one place, such as the mixing head of a reaction injection molding machine, and then injected into another place, such as a mold, where the monomer reacts to form a cellular crosslinked polymer.Type: GrantFiled: June 21, 1984Date of Patent: January 29, 1985Assignee: Hercules IncorporatedInventor: Douglas R. Leach
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Patent number: 4492775Abstract: The flowability of foamable compositions comprising a hydroxyl-containing polyorganosiloxane, a polyorganosiloxane containing silicon-bonded hydrogen atoms, a platinum catalyst and a catalyst inhibitor is eliminated by including in the composition a solid filler exhibiting a mean particle size of one micron or less and either (1) organosilicon compound containing at least 0.5% by weight of carboxyl groups or silicon-bonded hydroxyalkyl groups, or (2) a partially esterified polyfunctional alcohol. In addition, the pot life of the composition is increased without adversely affecting the structure of the cured foam or the adhesion of the foam to various substrates.Type: GrantFiled: May 22, 1984Date of Patent: January 8, 1985Assignee: Toray Silicone Co., Ltd.Inventors: Taro Koshii, Mitsugu Yamashita
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Patent number: 4482650Abstract: A blowing agent composition is provided comprising an azodicarbonamid; zinc oxide, zinc carbonate or a zinc salt of C.sub.1 -C.sub.4 organic acid; and an aromatic sulfinic acid or a metal salt of an aromatic sulfinic acid. For each hundred parts by weight of the azodicarbonamid, the zinc oxide, zinc carbonate or zinc salt is 0.25-25 parts by weight and the aromatic sulfinic acid or metal salt is from 1-2000 parts by weight for each 100 parts of the zinc oxide, zinc carbonate or zinc salt. The total weight of the zinc oxide, zinc carbonate or zinc salt plus the aromatic sulfinic acid or metal salt is from 20-25 parts by weight.Type: GrantFiled: January 23, 1984Date of Patent: November 13, 1984Assignee: Uniroyal, Inc.Inventors: Donald G. Rowland, Rhomie L. Heck, III
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Patent number: 4480054Abstract: Compatible blends of an ethylene/methacrylic or ethylene/acrylic acid dipolymer or a terpolymer with n-butyl or isobutyl acrylate with an ethylene/X/Y terpolymer, where X is vinyl acetate or an alkyl acrylate and Y is CO or SO.sub.2, with an elastomer, a blowing agent, and a curing agent can be readily formed into stiff foamed articles having very good physical properties, especially split tear and tensile strength. The foamed articles are useful, among others, in such applications as footwear, insulation, shock absorbance, floatation devices, seals and, gaskets.Type: GrantFiled: January 23, 1984Date of Patent: October 30, 1984Assignee: E. I Du Pont de Nemours and CompanyInventor: Susan J. Enderle
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Patent number: 4477599Abstract: A method of preparing a foamable polyvinyl system resin composition which renders a non-flammable, high strength to weight ratio foam product comprises, reacting at least 0.05 parts by weight of an organic radical initiator per 1 part by weight of polyvinyl system resin with the components consisting essentially of (a) at least one polyvinyl system resin (b) 2-100 parts by weight of at least one inorganic filler per 1 part by weight of polyvinyl system resin (c) an effective amount of at least one blowing agent.Type: GrantFiled: November 8, 1982Date of Patent: October 16, 1984Assignee: Hirosuke KojimaInventors: Takayuki Otsu, Hirosuke Kojima
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Patent number: 4472536Abstract: A blowing agent composition is provided comprising an azodicarbonamid; zinc oxide, zinc carbonate or a zinc salt of C.sub.1 -C.sub.4 organic acid; and an aromatic sulfinic acid or a metal salt of an aromatic sulfinic acid. For each hundred parts by weight of the azodicarbonamid, the zinc oxide, zinc carbonate or zinc salt is 0.24-25 parts by weight and the aromatic sulfinic acid or metal salt is from 1-2000 parts by weight for each 100 parts of the zinc oxide, zinc carbonate or zinc salt. The total weight of the zinc oxide, zinc carbonate or zinc salt plus the aromatic sulfinic acid or metal salt is from 20-25 parts by weight.Type: GrantFiled: January 23, 1984Date of Patent: September 18, 1984Assignee: Uniroyal, Inc.Inventors: Donald G. Rowland, Rhomie L. Heck, III
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Patent number: 4462927Abstract: A blowing agent composition is provided comprising:(a) zinc formate, and(b) a compound having the formula M.sub.m X, wherein M is sodium or potassium; X is chlorine, bromine, iodine, CO.sub.3, HCO.sub.3, SO.sub.4, SO.sub.3, S.sub.2 O.sub.3, NO.sub.2, SCN, OCN, BO.sub.2, HBO.sub.3, HPO.sub.4, PO.sub.4 or H.sub.2 PO.sub.4, and m is an integer representing the valence of X; or a compound having the formula M.sub.n.sup.1 R.sub.p, wherein M.sup.1 is alkali metal, calcium, lead or zinc, R is organic mono- or polybasic acid having 1-18 carbon atoms and from 0 to 2 nitrogen atoms, or a benzenesulfonyl or toluenesulfonyl radical; and n and p are integers representing the valences of R and M.sup.1, respectively or whole fractions thereof.Type: GrantFiled: December 7, 1983Date of Patent: July 31, 1984Assignee: Uniroyal, Inc.Inventor: Byron A. Hunter
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Patent number: 4451638Abstract: Alkali metal polyester silicate resinous products are produced by mixing a polyhydroxy organic compound, an alkali metal silicate and a polycarboxylic acid, then heating the mixture to a temperature between the melting point of the polycarboxylic acid and the boiling temperature of the polyol while agitating until the reaction is complete.Type: GrantFiled: February 19, 1980Date of Patent: May 29, 1984Inventor: David H. Blount
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Patent number: 4448900Abstract: A composition and process for reducing the adhesion of expandable polystyrene beads impregnated with a blowing agent such as pentane. The composition comprises effective amounts of magnesium stearate and zinc stearate respectively. The composition is added to the polystyrene in an apparatus such as a tumble blender prior to pre-expansion of the impregnated polystyrene beads.Type: GrantFiled: April 29, 1983Date of Patent: May 15, 1984Assignee: Cosden Technology, Inc.Inventor: Richard A. Schwarz
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Patent number: 4446208Abstract: A composition and process for reducing the adhesion of expandable polystyrene beads impregnated with a blowing agent such as pentane. The composition comprises effective amounts of magnesium stearate and zinc stearate respectively. The composition is added to the polystyrene in an apparatus such as a tumble blender prior to pre-expansion of the impregnated polystyrene beads.Type: GrantFiled: July 22, 1983Date of Patent: May 1, 1984Assignee: Cosden Technology, Inc.Inventor: Richard A. Schwarz
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Patent number: 4446253Abstract: Fine-celled foams are produced by a process in which a styrene polymer is melted, the melt is mixed with a volatile blowing agent and a nucleating agent under superatmospheric pressure, the mixture is let down to atmospheric pressure, and the foam is cooled. The nucleating agent employed comprises from 0.02 to 2% by weight of the calcium salt of a long-chain fatty acid, and from 0.01 to 1% by weight of a finely divided, inorganic substance which is insoluble in the styrene polymer, a mixture of calcium stearate and magnesium oxide being preferred.Type: GrantFiled: July 23, 1982Date of Patent: May 1, 1984Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Heinz Weber, Wolfgang Guenther, Bernhard Schillinger, Reinhold Weber
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Patent number: 4446254Abstract: A crosslinked foam having an expansion ratio of 25 to 60 which comprises a composition containing 100 parts by weight of a resin component consisting of an ethylenevinyl acetate copolymer or a mixture thereof with a thermoplastic resin and 50 to 500 parts by weight of an inorganic powder material.Type: GrantFiled: April 9, 1982Date of Patent: May 1, 1984Assignee: The Furukawa Electric Co., Ltd.Inventors: Hiroyuki Nakae, Isamu Noguchi, Masayuki Kondo
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Patent number: 4444679Abstract: A blowing agent composition is provided comprising an azodicarbonamid; zinc oxide, zinc carbonate or a zinc salt of C.sub.1 -C.sub.4 organic acid; and an aromatic sulfinic acid or a metal salt of an aromatic sulfinic acid. For each hundred parts by weight of the azodicarbonamid, the zinc oxide, zinc carbonate or zinc salt is 0.25-25 parts by weight and the aromatic sulfinic acid or metal salt is from 1-2000 parts by weight for each 100 parts of the zinc oxide, zinc carbonate or zinc salt. The total weight of the zinc oxide, zinc carbonate or zinc salt plus the aromatic sulfinic acid or metal salt is from 20-25 parts by weight.Type: GrantFiled: July 19, 1982Date of Patent: April 24, 1984Assignee: Uniroyal, Inc.Inventors: Donald G. Rowland, Rhomie L. Heck, III
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Patent number: 4438223Abstract: A blowing agent composition is provided comprising:(a) zinc formate, and(b) a compound having the formula M.sub.m X, wherein M is sodium or potassium; X is chlorine, bromine, iodine, CO.sub.3, HCO.sub.3, SO.sub.4, SO.sub.3, S.sub.2 O.sub.3, NO.sub.2, SCN, OCN, BO.sub.2, HBO.sub.3, HPO.sub.4, PO.sub.4 or H.sub.2 PO.sub.4, and m is an integer representing the valence of X; or a compound having the formula M.sub.n.sup.1 R.sub.p, wherein M.sup.1 is alkali metal, calcium, lead or zinc, R is organic mono- or polybasic acid having 1-18 carbon atoms and from 0 to 2 nitrogen atoms, or a benzenesulfonyl or toluenesulfonyl radical; and n and p are integers representing the valences of R and M.sup.1, respectively or whole fractions thereof.Type: GrantFiled: August 22, 1983Date of Patent: March 20, 1984Assignee: Uniroyal, Inc.Inventor: Byron A. Hunter
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Patent number: 4435525Abstract: Low density foams are prepared from an admixture which comprises a medium which is polymerizable and/or crosslinkable by free radical initiation, carbonylhydrazine blowing agent, a peroxide curing agent, a suitable surfactant, and at least one transition metal salt promoter wherein at least one of the metal salts is a compound of iron or copper. The blowing agent in the presence of an effective amount of the transitional metal salt promoter improves the efficiency of the process.Type: GrantFiled: March 28, 1983Date of Patent: March 6, 1984Assignee: Pennwalt CorporationInventor: Ernest R. Kamens
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Patent number: 4434251Abstract: This invention provides a method of continuously manufacturing a cross-linked polyvinyl chloride resin foam sheet which has a low density, uniformly fine cell, excellent thermal moldability and high heat resistance and is neither deformed nor deteriorated even by long storage characterized by uniformly kneading the polyvinyl chloride resin with a blowing agent, stabilizer, plasticizer and cross-linking promoter without causing the blowing agent to decompose itself, thereby providing an unfoamed kneaded composition in which the polyvinyl chloride resin is gelled and forming said composition into a continuing sheet, irradiating said sheet with ionizing radiation to cross-link the resin; and thermally foaming the cross-linked sheet.Type: GrantFiled: January 25, 1982Date of Patent: February 28, 1984Assignee: The Furukawa Electric Co., Ltd.Inventors: Junnosuke Sasajima, Hiroshi Nagai, Kenji Mogi, Akio Nojiri, Naonori Shiina
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Patent number: 4425443Abstract: Moulding composition comprising a vinylidene fluoride polymer and a blowing agent which is a hydroxycarboxylic acid or an alkali metal salt derived from one of the acids.Type: GrantFiled: February 24, 1982Date of Patent: January 10, 1984Assignee: Solvay & Cie (Societe Anonyme)Inventors: Pierre Georlette, Jean Leva
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Patent number: 4425442Abstract: A process for producing an open cell foam comprising the steps of:(a) forming a compound comprising polyvinyl chloride resin produced by suspension polymerization, at least one organic stabilizer containing at least one Group I metal and at least one organic stabilizer containing at least one Group II metal, at least one surface active agent, and a heat decomposable blowing agent; and(b) heating the compound to decompose the blowing agent thereby producing the foam.A foamable compound comprising polyvinyl chloride resin produced by suspension polymerization, at least one organic stabilizer containing at least one Group I metal and at least one organic stabilizer containing at least one Group II metal, at least one surface active agent, and a heat decomposable blowing agent.The foam formed exhibits high breathability as well as a high water permeability when desired.Type: GrantFiled: November 15, 1982Date of Patent: January 10, 1984Assignee: Lonseal CorporationInventors: Akira Sato, Tatsuo Waki
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Patent number: 4423110Abstract: A process for producing an open cell foam. The process comprises mixing a polyvinyl chloride composition, plasticizer, at least one stabilizer, and a foaming agent to form a blend; gelling the blend; forming the gelled blend into a sheet; and heating the sheet to decompose the foaming agent thereby forming the open cell foam. The sheet formed by the process. The process for forming an intermediate used in the process and the intermediate itself.Type: GrantFiled: March 27, 1980Date of Patent: December 27, 1983Assignee: Lonseal Kogyo Co., Ltd.Inventor: Akira Sato
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Patent number: 4394461Abstract: A foamable polyester resin composition is provided and a method for making the same. The composition comprises (a) a liquid unsaturated polyester resin, (b) an azocarboxylate, (c) an organic peroxide or hydroperoxide, (d) a proton donor, (e) a metal promoter, (f) optionally a surfactant, and (g) optionally a filler.Type: GrantFiled: September 30, 1982Date of Patent: July 19, 1983Assignee: Uniroyal, Inc.Inventor: Paul E. Stott
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Patent number: 4393148Abstract: Low density foams are prepared from an admixture which comprises a medium which is polymerizable and/or crosslinkable by free radical initiation, a t-alkylhydrazinium salt blowing agent, a peroxide curing agent, a suitable surfactant, and at least one transition metal salt promoter wherein at least one of the metal salts is a compound of iron or copper. The t-alkylhydrazinium salt blowing agent in the presence of an effective amount of the transitional metal salt promoter improves the efficiency of the process.Type: GrantFiled: September 30, 1982Date of Patent: July 12, 1983Assignee: Pennwalt CorporationInventor: Ernest R. Kamens
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Patent number: 4391922Abstract: Mono- and polyazoformamide, sulfonyl hydrazide, sulfonyl semicarbazide and/or dinitrosomethylene amine compounds act as chemical blowing agents and curatives for carbon monoxide-containing ethylene copolymers.Type: GrantFiled: May 6, 1982Date of Patent: July 5, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Jerald R. Harrell
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Patent number: 4384048Abstract: The present invention relates to a composition comprising a blowing agent and an activator characterized in that the blowing agent and activator have been micronized together rather than separately as hitherto; to methods for making the composition and to the use of the compositions in expanding polymers.Type: GrantFiled: July 7, 1982Date of Patent: May 17, 1983Assignee: FBC LimitedInventor: Raymond J. Bathgate
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Patent number: 4374205Abstract: The invention pertains to chlorinated vinyl chloride polymer compositions containing, in addition to a chlorinated vinyl chloride polymer, a primary stabilizer for the chlorinated vinyl chloride polymer and a metal salt of phosphoric acid.Type: GrantFiled: June 23, 1982Date of Patent: February 15, 1983Assignee: The B. F. Goodrich CompanyInventor: Dale R. Hall
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Patent number: 4369126Abstract: The present invention relates to a composition comprising a blowing agent and an activator characterised in that the blowing agent and activator have been micronised together rather than separately as hitherto; to methods for making the composition and to the use of the compositions in expanding polymers.Type: GrantFiled: March 20, 1981Date of Patent: January 18, 1983Assignee: FBC LimtedInventor: Raymond J. Bathgate
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Patent number: 4351911Abstract: A foamable thermoplastic injection moldable composition comprising in admixture (a) a polyester resin, (b) a filler selected from the group consisting of fibrous glass or a mineral or mixtures thereof in an amount of from about 5 to about 50 weight percent, and (c) a minor amount of foaming agent.Type: GrantFiled: August 1, 1980Date of Patent: September 28, 1982Assignee: General Electric CompanyInventor: Daniel W. Fox
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Patent number: 4343912Abstract: The present invention pertains to a method for reducing the processing temperature of a thermoplastic polymer comprising blending the thermoplastic polymer in powder form with an effective amount of a compound having a softening temperature of about 20.degree. to 200.degree. C. lower than the softening temperature of the thermoplastic polymer. The invention further pertains to novel chemical blowing agent concentrates.Type: GrantFiled: September 21, 1981Date of Patent: August 10, 1982Assignee: Mobay Chemical CorporationInventor: In C. Lim
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Patent number: 4330635Abstract: The invention relates to a foamable polymeric composition comprising a copolymer of alkenyl aromatic and alkenyl nitrile monomers, optionally a diene rubber grafted with said monomers and a foaming agent selected from a polybasic acid group. A method for foaming said polyblend is also disclosed.Type: GrantFiled: December 15, 1980Date of Patent: May 18, 1982Assignee: Monsanto CompanyInventor: Edward F. Tokas
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Patent number: 4318875Abstract: A cross-linked, cellular elastomeric composition is made from a formulation which includes one or more natural and/or synthetic rubbers, a cross-linking agent, a monomeric metallic salt of an ethylenically-unsaturated carboxylic acid and a blowing agent. The metallic salt is preferably basic zinc methacrylate. The composition may be used to provide a core for a tennis-ball or a sponge for a table-tennis bat. The former use enables advantage to be taken of the properties hitherto only found in pressurized playballs, while the latter use leads to a marked increase in the speed of the ball when struck by the bat.Type: GrantFiled: November 26, 1980Date of Patent: March 9, 1982Assignee: Dunlop LimitedInventors: Ronald H. Shrimpton, Peter L. Cooney
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Patent number: 4313873Abstract: The present invention pertains to a method for reducing the processing temperature of a thermoplastic polymer comprising blending the thermoplastic polymer in powder form with an effective amount of a compound having a softening temperature of about 20.degree. to 200.degree. C. lower than the softening temperature of the thermoplastic polymer. The invention further pertains to novel chemical blowing agent concentrates.Type: GrantFiled: June 18, 1979Date of Patent: February 2, 1982Assignee: Mobay Chemical CorporationInventor: In C. Lim
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Patent number: 4298706Abstract: Foams of polypropylene resin composition having remarkably improved extrusion foaming characteristics are prepared by a non-crosslinking extrusion foaming process comprising mixing and kneading polypropylene resin and 1,2-polybutadiene resin so that 1,2-polybutadiene resin reacts under the influence of the heat and shearing stress in the extruder, and extruding thereafter.Type: GrantFiled: September 18, 1979Date of Patent: November 3, 1981Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Takashi Ueno, Kyoichi Nakamura
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Patent number: 4298702Abstract: This invention relates to a process of making flame-retardant polystyrene foams by an extrusion process in which a stabilizer of a dialkyl-tin carboxylate or a mixture of a dialkyl tin carboxylate and a barium and/or cadmium carboxylate is added to the extrusion melt.Type: GrantFiled: August 4, 1980Date of Patent: November 3, 1981Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Klaus Hinselmann, Klaus Halbritter, Walter Rebafka, Heinz Weber
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Patent number: 4296209Abstract: A method and material for cementing solid animal tissue in situ is disclosed. Fractured and broken bones, roots of teeth, prosthetic devices and the like are cemented in place and by means of a composition which, when mixed and applied, foams to form a porous cement and cures in place having effervescent, adhesive and partially reabsorptive properties.Type: GrantFiled: March 26, 1980Date of Patent: October 20, 1981Inventor: Dobrivoje Tomic
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Patent number: 4288561Abstract: A foamable thermoplastic injection moldable composition comprising in admixture (a) a polyester resin, (b) a filler selected from the group consisting of fibrous glass or a mineral or mixtures thereof in an amount of from about 5 to about 50 weight percent and (c) a minor amount of a foaming agent. The compositions can also include flame retardant additives.Type: GrantFiled: February 22, 1978Date of Patent: September 8, 1981Assignee: General Electric CompanyInventors: Donald I. Craft, Morton Kramer
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Patent number: 4280005Abstract: A foamable flame-retardant thermoplastic injection moldable composition comprising in admixture (a) a polyester resin, (b) a filler selected from the group consisting of fibrous glass or a mineral or mixtures thereof in an amount of from about 5 to about 50 weight percent, (c) a flame-retardant additive and (d) a minor amount of a foaming agent.Type: GrantFiled: September 24, 1979Date of Patent: July 21, 1981Assignee: General Electric CompanyInventor: Daniel W. Fox
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Patent number: 4273880Abstract: A process for the production of foamed films of polyethylene or ethylene vinyl acetate copolymers using metal salts of aliphatic fatty acids as additives.Type: GrantFiled: July 19, 1979Date of Patent: June 16, 1981Assignee: Bayer AktiengesellschaftInventors: Wichard Pump, Wolfgang Becker, Edwin Woldenberg
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Patent number: 4259453Abstract: A composition comprising a gas-expandable polymeric material and an activated hydrazodicarboxylate blowing agent, wherein the activator is selected from nickelbis(3,5-di-t-butyl-4-hydroxybenzoate), a mixture of 2-hydroxy-4-n-octoxybenzophenone and nickelbis(2-oxy-4-n-octoxybenzophenone), nickel stearate, nickel trifluoroacetylacetonate, [2,2'-thiobis(4-t-thiobis(4-t-octylphenolato)]nickel, nickelbis [O-ethyl-(3,5-di-t-butyl-4-hydroxybenzyl)phosphonate], nickelammoniumsulfate, ethylenediaminetetra(methylenephosphonic acid), and hexamethylenediaminetetra(methylenephosphonic acid).Type: GrantFiled: June 4, 1980Date of Patent: March 31, 1981Assignee: Uniroyal, Inc.Inventor: Rhomie L. Heck, III
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Patent number: 4252906Abstract: A process for preparing a foamed and crosslinked polyethylene resin shaped article having improved heat-sealability, which comprises melt-kneading (a) a silane-modified polyethylene resin, (b) a heat-decomposable blowing agent, (c) a silanol condensation catalyst, and (d) an organic peroxide at a temperature lower than the decomposition temperature of the heat-decomposable blowing agent (b), shaping the mixture, and heating the resulting foamable and crosslinkable shaped articles to the decomposition temperature of the heat-decomposable blowing agent or to a higher temperature thereby to foam and crosslink it; and a foamable and crosslinkable polyethylene resin composition used therefor.Type: GrantFiled: September 7, 1977Date of Patent: February 24, 1981Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Seiya Hosokawa, Ken Shinkai, Tateo Takasuka, Yutaka Ozaki
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Patent number: 4200697Abstract: Unsaturated polyester resins will form foamed or solid plastics with water-binding agents containing an oxidated silicon compound in the presence of an initiator.Type: GrantFiled: February 7, 1979Date of Patent: April 29, 1980Inventor: David H. Blount
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Patent number: 4196267Abstract: An extrusion foamed article with a large cross-sectional area is made by extrusion foaming a mixture of an ionomer resin and a styrenic resin utilizing a volatile blowing agent. The process permits economic production of a novel thick, foamed article having well balanced properties.Type: GrantFiled: February 27, 1978Date of Patent: April 1, 1980Assignee: Asahi-Dow LimitedInventors: Seizaburo Watanabe, Yuji Seo, Eiji Hattori, Masao Okuda, Hiroshi Watanabe
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Patent number: 4192924Abstract: Curable organic resin compositions, such as epoxy resins, are provided, based on the use of a diaryliodonium salt-redox catalyst curing system. The curable compositions can provide flexible or rigid organic resin foam when used with a volatile organic solvent as a result of exothermic heat of cure.Type: GrantFiled: April 30, 1979Date of Patent: March 11, 1980Assignee: General Electric CompanyInventor: James V. Crivello
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Patent number: 4191719Abstract: A method for the production of a stretched multi-cellular polyolefin article. A composition comprising a blend of a crystalline polyolefin and about 2-50% by weight of a metal resinate is formed into a shaped article. The shaped article is either uniaxially or biaxially stretched at a temperature between the glass transition temperature and the crystalline melting point of the polyolefin resin to form a multi-cellular article.Type: GrantFiled: July 19, 1976Date of Patent: March 4, 1980Assignee: Bakelite Xylonite LimitedInventors: James Jack, Godfrey A. King
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Patent number: 4186163Abstract: This invention relates to a novel elastomeric foamed material which has surprisingly been found to exhibit a variety of unusual and desirable features both in its physical properties and in its process of manufacture. These foamed compositions of a lightly sulfonated elastomeric gum contain a nonvolatile polar plasticizer and preferably extenders such as oil and fillers. These elastomer foams exhibit an unusual profile of physical properties including melt reprocessability of fabricated articles, and high temperature reshaping of foamed objects while maintaining a good foam structure. These novel foams can be manufactured with relatively uniform cell structures and with small cell sizes at foam densities from near bulk density to less than 0.1 g/cc.Type: GrantFiled: October 4, 1977Date of Patent: January 29, 1980Assignee: Exxon Research & Engineering Co.Inventors: Douglas Brenner, Robert D. Lundberg
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Patent number: 4181780Abstract: This invention relates to a novel elastomeric foamed material which has been found to exhibit a variety of unusual and desirable features both in its physcial properties and in its process of manufacture. These foamed compositions of a lightly sulfonated elastomeric gum contain a non-volatile polar plasticizer and preferably extenders such as oil and fillers. These elastomer foams exhibit an unusal profile of physical properties including extremely rapid production, melt reprocessability of fabricated articles, a novel memory characteristic, and high temperature reshaping of foamed objects while maintaining a good foam structure. These novel foams can be manufactured with relatively uniform cell structures and with small cell sizes at foam densities from near bulk density to less than 0.1g/cc.Type: GrantFiled: January 5, 1979Date of Patent: January 1, 1980Assignee: Exxon Research & Engineering Co.Inventors: Douglas Brenner, Robert D. Lundberg
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Patent number: 4170697Abstract: Silicon halides will react chemically with polyols to produce polyol silicate resinous products which will react chemically with polyisocyanates to produce polyisocyanate silicate solid or cellular solid products.Type: GrantFiled: June 23, 1978Date of Patent: October 9, 1979Inventor: David H. Blount
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Patent number: 4166890Abstract: A process for the manufacture of cross-linked foamable moldings from olefin polymers, wherein the olefin polymer is mixed with(a) a solid organic blowing agent which eliminates gases when heated,(b) an organic peroxide,(c) conventional additives and(d) an activating organic compound which lowers the decomposition temperature of the peroxide,And the mixture is molded thermoplastically and is crosslinked below the decomposition temperature of the blowing agent but above the decomposition temperature of the activated peroxide.The organic activator is preferably a transition metal salt of a long-chain fatty acid.The moldings may be used for the manufacture of foams, for example for insulating purposes.Type: GrantFiled: March 13, 1978Date of Patent: September 4, 1979Assignee: BASF AktiengesellschaftInventors: Michael Fried, Ludwig Zuern, Erhard Stahnecker
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Patent number: 4164512Abstract: This invention relates to a novel elastomeric foamed material which has been found to exhibit a variety of unusual and desirable features both in its physical properties and in its process of manufacture. These foamed compositions of a lightly sulfonated elastomeric gum contain a non-volatile polar plasticizer and preferably extenders such as oil and fillers. These elastomer foams exhibit an unusual profile of physical properties including extremely rapid production, melt reprocessability of fabricated articles, a novel memory characteristic, and high temperature reshaping of foamed objects while maintaining a good foam structure. These novel foams can be manufactured with relatively uniform cell structures and with small cell sizes at foam densities from near bulk density to less than 0.1g/cc.Type: GrantFiled: November 29, 1977Date of Patent: August 14, 1979Assignee: Exxon Research & Engineering Co.Inventors: Douglas Brenner, Robert D. Lundberg
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Patent number: 4160072Abstract: A foamable and crosslinkable polyethylene composition comprising(a) modified polyethylene obtained by chemically bonding a silane compound containing at least one unsaturated group to polyethylene in the presence of a radical generator,(b) a zinc salt of a higher carboxylic acid, and(c) a heat-decomposable blowing agent, and ingredients (a), (b) and (c) having been melt-kneaded with one another at a temperature lower than the decomposition temperature of the heat-decomposable blowing agent.Type: GrantFiled: October 31, 1977Date of Patent: July 3, 1979Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Ken Shinkai, Norio Chiba, Yutaka Ozaki
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Patent number: 4122046Abstract: Elastomeric, chemically stable, flame resistant polymers are obtained by polymerizing acrylamide or mixtures of acrylamide and at least one ethylenically unsaturated monomer copolymerizable therewith in the presence of a catalyst having the structure: ##STR1## wherein: Q = Na, K, NH.sub.4, Ca or Ban = 2 to 5 ##STR2## Me = Ti, Mn, Mo, Zr or W x = 0 to 1a, b, c each = 0 to 1a+b+c+d = valence of Me.The catalyst may be used alone as well as with UV, electron beam, ionizing radiation and combinations of these and with general redox systems known in the literature.Type: GrantFiled: June 17, 1975Date of Patent: October 24, 1978Inventor: John Joseph Waldmann
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Patent number: 4113672Abstract: Expandable styrene polymer particles having reduced flammability are made by incorporating from 0.1 to 15 weight percent of non-polymeric organic halogen compounds into the polymer during impregnation of the polymer particles with a blowing agent in aqueous suspension. The addition of 0.001 to 0.5 weight percent of dialkyl tin maleates or fumarates during the impregnation step produces expandable styrene polymer particles with greatly improved molding characteristics such as reduced pruning tendency, increased mold fusion, and greater dimensional stability. Addition of a synergistic amount of 0.001 to 0.4 weight percent of a hindered phenolic antioxidant with the tin compounds gives improved molding characteristics with retention of polymer molecular weight.Type: GrantFiled: November 7, 1977Date of Patent: September 12, 1978Assignee: Arco Polymers, Inc.Inventor: Walter O. Pillar