Ingredient Is A Nitrogen Containing Compound Patents (Class 521/128)
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Patent number: 4363745Abstract: Antioxidant compositions containing (a) a sterically hindered phenol, (b) 4,4'-bis(.alpha.,.alpha.-dimethylbenzyl) diphenyl amine and (c) a phenothiazine compound stabilize polyols against oxidative degradation and prevent urethane foams prepared therefrom from scorching.Type: GrantFiled: April 1, 1981Date of Patent: December 14, 1982Assignee: The Dow Chemical CompanyInventor: Kenneth J. Hinze
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Patent number: 4362678Abstract: A process for producing a laminate of polyisocyanurate foam which is the reaction product of a polymethylene polyphenylisocyanate and a polyol which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane, ethoxylated pentaerythritol or ethoxylated glycerin. Laminates of such foams exhibit improved adhesion of the facing sheet.Type: GrantFiled: October 19, 1981Date of Patent: December 7, 1982Assignee: The Celotex CorporationInventors: Michael J. Skowronski, Alberto DeLeon
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Patent number: 4358548Abstract: For forming synthetic cellular materials, gas is generated by the reaction of an isocyanate and a hydroperioxide. The reactants produce a novel polymeric amine oxide foam. When the reactants are introduced to a base resin, cellular foam products (densities throughout the 50 to 2 lbs/ft.sup.3 range), extended resin products of even higher densities, and non-shrink resinous solids (with microcellular distribution of gas) can be obtained. When employed in resins curable with hydroperoxide, a small fraction of the hydroperoxide interacts with a promoter and serves to cure the resin while the larger fraction reacts earlier with the isocyanate to evolve gas before the gellation state of the base resin is reached. The foaming agent can be made commercially available as a premixture of isocyanate and appropriate surfactant for the hydroperoxide reaction. By mixing with low hydroxyl and carboxyl base resin, long pot life is obtainable.Type: GrantFiled: January 14, 1980Date of Patent: November 9, 1982Assignee: Whitney & Company, Inc.Inventor: Glen W. Saidla
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Patent number: 4357430Abstract: This invention relates to normally liquid, stable polymer/polyol compositions formed by polymerizing, in the presence of a free radical catalyst, an ethylenically unsaturated monomer or monomers dissolved or dispersed in a polyol mixture including a coupled polyol consisting of the reaction product of a polyol having a functionality in excess of 2 reacted with polyisocyanate in such proportion that the ratio of hydroxyl groups to isocyanato groups is greater than 1. In one embodiment, the coupled polyol is made in situ in the base polyol by addition thereto of the required amount of the polyisocyanate. The novel polymer/polyol compositions are convertible to polyurethane foams and elastomers.Type: GrantFiled: October 2, 1981Date of Patent: November 2, 1982Assignee: Union Carbide CorporationInventor: Russell VanCleve
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Patent number: 4356274Abstract: Smoke suppressed rigid polyurethane foams are prepared from a reaction mixture comprising as the smoke suppressant additive a metal salt of a: dialkyl dithiocarbamate, a mercaptobenzothiazole, a 2,5-dimercapto-1,3,4-thiadiazole, a mercaptotriazine, a hydroxy thiophenol or an aliphatic dimercapto compound of 2 to 10 carbons.Type: GrantFiled: April 16, 1979Date of Patent: October 26, 1982Assignee: Pennwalt CorporationInventors: Stanley R. Sandler, Jeffrey D. Miano
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Patent number: 4355118Abstract: The instant invention is directed to a process for the production of an inorganic-organic foam composition comprising reacting an organic, nonionic hydrophilic polyisocyanate with an aqueous alkali metal silicate in the presence of a catalyst and a blowing agent, the improvement wherein said aqueous alkali metal silicate contains from 0.1 to 15% by weight, based on the weight of the aqueous alkali metal silicate, of a compound of the formula: ##STR1## wherein A is selected from the group consisting of N, P and S, wherein R, R', R" and R'" may be the same or different and are selected from the group consisting of allyl, vinyl, C.sub.1 to C.sub.17 alkyl or mono- or polyhydroxy substituted alkyl, C.sub.6 to C.sub.10 aryl or mono- or polyhydroxy substituted aryl, C.sub.7 to C.sub.22 aralkyl or mono- or polyhydroxy substituted aralkyl, and C.sub.7 to C.sub.Type: GrantFiled: September 30, 1981Date of Patent: October 19, 1982Assignee: Mobay Chemical CorporationInventors: Miltiadis I. Iliopulos, Gert F. Baumann
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Patent number: 4352896Abstract: This invention relates to mixtures of polyols which are liquid at room temperature with functional aldoximes as blowing agents, wherein the aldoxime groups react with polyisocyanates to liberate carbon dioxide and are simultaneously incorporated by means of the functional group thereof into the polyurethane formed. The present invention also relates to a process for the production of polyurethane foams using these incorporated reactive blowing agents as the primary blowing agent in combination with blowing agents known in polyurethane chemistry. The process according to the invention described herein is suitable for the production of various polyurethane foams or cellular polyurethane elastomers, particularly including the production of semi-rigid and rigid polyurethane integral skin foams which are obtained by foaming the reaction mixture in closed molds.Type: GrantFiled: October 8, 1981Date of Patent: October 5, 1982Assignee: Bayer AktiengesellschaftInventors: Richard Kopp, Holger Meyborg, Jurgen Schwindt
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Patent number: 4346180Abstract: An oxidated silicon compound will react with a substituted organic compound in the presence of an alkali compound to produce organic alkali metal silicate products which may be used as molding powders, as adhesives, as coating agents and be reacted with polyisocyanates to produce insulating foams.Type: GrantFiled: December 10, 1981Date of Patent: August 24, 1982Inventor: David H. Blount
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Patent number: 4339550Abstract: Foam products are disclosed which are produced by incorporating active materials, utilizing in situ methods, into the cell structure of hydrophillic polyurethane foams. The products obtained are characterized by a controlled rate of release of the active material from the foam structure.Type: GrantFiled: January 26, 1981Date of Patent: July 13, 1982Assignee: Carter-Wallace, Inc.Inventors: Victor Palinczar, Thomas F. Santini
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Patent number: 4338407Abstract: An improvement is disclosed in the preparation of high resilience polyurethane foam. The improvement resides in the use of a select reaction mixture which includes a polyol containing an effectively dispersed finely divided solid particulate material and 1,4-cyclohexanedimethanol as a cross-linking agent to stabilize the reaction mixture.Type: GrantFiled: March 2, 1981Date of Patent: July 6, 1982Assignee: Olin CorporationInventors: Kiran B. Chandalia, Henry G. Barnowski
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Patent number: 4337320Abstract: An expandable vinyl chloride resin composition for foaming under atmospheric pressure which comprises a resin ingredient comprising (A) a vinyl chloride homopolymer or copolymer having substantially no active hydrogens, (B) a vinyl chloride copolymer having active hydrogens and (C) a thermoplastic polyurethane resin, and a crosslinking agent, a foaming agent, a thermal stabilizer and a plasticizer, the ratio of the components (A), (B) and (C) being 30 to 90:5 to 40:5 to 40 by weight. The composition is expanded under atmospheric pressure to give a foam of a high expansion ratio which has uniform and fine cells and shows an excellent rubber-like elasticity.Type: GrantFiled: March 25, 1981Date of Patent: June 29, 1982Assignee: Otsuka Chemical Co., Ltd.Inventor: Misao Morinaga
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Patent number: 4335218Abstract: Improved adhesion between the skin and core of laminates having rigid polyisocyanurate foam cores is obtained by incorporating a dipolar aprotic organic solvent, in minor amount, into the reaction mixture employed to prepare the polyisocyanurate foam core.Type: GrantFiled: October 27, 1980Date of Patent: June 15, 1982Assignee: The Upjohn CompanyInventor: David T. DeGuiseppi
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Patent number: 4335219Abstract: The reaction of an isocyanate such as toluene diisocyanate with itself to form an isocyanurate or with an active hydrogen compound such as diethylene glycol to form a urethane is catalyzed by the presence of an ar-ammonium areneoxide such as 4-dodecyl-2-trimethylammonium phenoxide.Type: GrantFiled: April 6, 1981Date of Patent: June 15, 1982Assignee: The Dow Chemical CompanyInventors: Donald H. Clarke, George J. Pomranky, Donald L. Schmidt
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Patent number: 4334032Abstract: Foamed polymers such as polyurethanes useful, for instance, as cushioning, insulation, and in reaction injection molding to produce thin section moldings can be produced without substantial reduction in physical properties by the incorporation therein of about 2 percent to about 75 percent by weight based upon the weight of said polymer of at least one non-reactive, liquid urethane modifier compound processing aid or flame-retardant additive. Said modifier has a low viscosity at ambient temperatures and is a low-molecular weight urethane adduct formed by the reaction of (1) at least one polyisocyanate and at least one monohydric alcohol or (2) at least one monofunctional isocyanate with at least one monohydric or polyhydric alcohol or (3) at least one isocyanate-terminated quasi-prepolymer with at least one monohydric alcohol. Said modifier can also consist of mixtures of (1), (2), and (3). Utilizing halogenated alcohols, flame-retardant polymer foams such as polyurethane foams can be prepared.Type: GrantFiled: March 13, 1981Date of Patent: June 8, 1982Assignee: BASF Wyandotte CorporationInventors: John T. Patton, Jr., Herwart C. Vogt
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Patent number: 4332720Abstract: Compounds typified by N,N'-polyoxyalkylene bis (pyrrolidinone-3-carboxylic acid) are useful as epoxy curing accelerators. Salts thereof, including alkali metal salts, are curing agents for isocyanurate foams.Type: GrantFiled: November 1, 1977Date of Patent: June 1, 1982Assignee: Texaco Development CorporationInventors: Heinz Schulze, Robert L. Zimmerman, Harold G. Waddill
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Patent number: 4327194Abstract: A select polyether polyol is used in preparing flexible polyurethane foam having desirable physical properties. The select polyether polyol is an oxypropylated, oxyethylated triol containing an effectively dispersed finely divided solid particulate material. The resulting foam is of utility in various applications, such as cushioning.Type: GrantFiled: February 2, 1981Date of Patent: April 27, 1982Assignee: Olin CorporationInventors: Kiran B. Chandalia, Henry G. Barnowski
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Patent number: 4327196Abstract: Polyester resin is expanded and cured using mono-substituted sulfonyl hydrozide blowing agent, organic peroxide curative and certain metal promoters.Type: GrantFiled: December 22, 1980Date of Patent: April 27, 1982Assignees: Uniroyal, Inc., Alpha Chemical CorporationInventors: Robert W. West, Paul E. Stott, James Ahnemiller
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Patent number: 4322502Abstract: Unsaturated polyester resin in solution in ethylenically unsaturated copolymerizable monomer is moved with peroxide catalyst, organometallic promoter and certain hydrazine-type or hydrazone compounds. The liquid mixture expands and cures to provide a solid foamed resin.Type: GrantFiled: September 11, 1980Date of Patent: March 30, 1982Assignee: Uniroyal, Inc.Inventors: Paul E. Stott, Edward L. Wheeler
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Patent number: 4315079Abstract: Compounds typified by N,N'-polyoxyalkylene bis(pyrrolidinone-3-carboxylic acid) are useful as epoxy curing accelerators. Salts thereof, including alkali metal salts, are curing agents for isocyanurate foams.Type: GrantFiled: April 1, 1981Date of Patent: February 9, 1982Assignee: Texaco Development CorporationInventors: Heinz Schulze, Robert L. Zimmerman, Harold G. Waddill
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Patent number: 4311801Abstract: A process for producing a laminate of polyisocyanurate foam which is the reaction product of a polymethylene polyphenylisocyanate and a polyol which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane, ethoxylated pentaerythritol or ethoxylated glycerin. Laminates of such foams exhibit improved adhesion of the facing sheet.Type: GrantFiled: January 18, 1980Date of Patent: January 19, 1982Assignee: The Celotex CorporationInventors: Michael J. Skowronski, Alberto DeLeon
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Patent number: 4310633Abstract: The instant invention is directed to hexahydrotriazine carboxylates, a method for their preparation, and their use as catalysts in the production of polyisocyanurate plastics.Type: GrantFiled: November 12, 1980Date of Patent: January 12, 1982Assignee: Bayer AktiengesellschaftInventors: Peter Haas, Johannes Blahak, Rolf Wiedermann
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Patent number: 4310634Abstract: Polyisocyanurate catalysts are disclosed which have the formula: ##STR1## where R.sub.1 and R.sub.2 are independently selected from alkyl groups of less than about 3 carbon atoms or where R.sub.1 and R.sub.2 together comprise cycloalkyl or morpholino groups and where R.sub.3 is hydrogen or alkyl groups containing less than about 3 carbon atoms. Said catalysts are useful in promoting the reaction between a polyol and an aromatic polyisocyanate to prepare a polymer containing recurring isocyanurate and urethane linkages.Type: GrantFiled: December 15, 1980Date of Patent: January 12, 1982Assignee: Texaco Development Corp.Inventors: Edward E. McEntire, Robert L. Zimmerman
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Patent number: 4305991Abstract: The instant invention relates to a process for the production of polyurethane foams by reacting polyisocyanates with polyhydroxyl compounds of a specified molecular weight range in the presence of blowing agents and chain lengthening or cross-linking agents and optionally in the presence of catalysts, foam stabilizers and other additives generally known. The improvement resides in(a) the polyisocyanates used containing aliphatically and/or cycloaliphatically bound isocyanate groups;(b) the polyhydroxyl compounds used containing ether groups; and(c) the chain lengthening or cross-linking agents comprising at least in part a member selected from the group consisting of a monoalkoxylated hydrazine, a dialkoxylated hydrazine, a reaction product of a monoalkoxylated or dialkoxylated hydrazine with an aliphatic monoisocyanate in a molar ratio of 1:1. The reaction is carried out in the presence of additional chain lengthening agents having a specified molecular weight.Type: GrantFiled: March 31, 1980Date of Patent: December 15, 1981Assignee: Bayer AktiengesellschaftInventors: Holger Meyborg, Werner Mormann, Hans-Walter Illger, Manfred Bock
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Patent number: 4305977Abstract: A process for improving the water vapor permeability of polyurethane coatings by incorporating a hydroxy alkyl amine, an alkoxylated amine or the salt of either with an inorganic or organic acid into the coating composition is taught. Coating compositions including this water vapor diffusion enhancing additive are also taught as is a process for coating water vapor permeable substrates.Type: GrantFiled: September 24, 1979Date of Patent: December 15, 1981Assignee: Bayer AktiengesellschaftInventors: Werner Kubitza, Gerhard Mennicken
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Patent number: 4304877Abstract: Small particles of lignin-cellulose-containing plants are mixed with an alkali metal silicate, then heated at 80.degree. C. to 120.degree. C. while agitating, thereby producing an alkali metal lignin-cellulose silicate polymer.Type: GrantFiled: November 19, 1979Date of Patent: December 8, 1981Inventor: David H. Blount
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Patent number: 4298707Abstract: Polymers of anionically polymerized monomers such as mono-olefins, conjugated dienes, vinyl substituted aromatics, vinyl substituted pyridine, vinyl substituted quinolines, various aldehydes, various epoxides, various oxetanes, various oxygen-containing compounds, and the like are produced and end capped with a polyisocyanate or polyisothiocyanate having the formula R--N.dbd.C.dbd.X).sub.n wherein R is a hydrocarbon, n is 2 or 3, and X is oxygen or sulfur. Such end capped polymers, of course, contain one reacted or connected isocyanate or isothiocyanate group and at least one free isocyanate or isothiocyanate end group, which free end group(s) reacts with an amide to give an imide end group. The imide terminated polymer is then hydrolyzed to form a stable amine terminated polymer. The reaction of the amide compound with the isocyanate(s) or isothyiocyanate(s), followed by hydrolysis, results in the replacement of the free isocyanate or isothiocyanate end group(s) with an amine group(s).Type: GrantFiled: March 5, 1979Date of Patent: November 3, 1981Assignee: The Firestone Tire & Rubber CompanyInventors: William L. Hergenrother, Richard A. Schwarz, Richard J. Ambrose, Robert A. Hayes
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Patent number: 4297442Abstract: Polyurethane elastomeric foam by foaming a prepolymer or polyisocyanates and compounds having at least two hydrogen atoms reactive to isocyanates, and a chain-lengthening polyamine agent, in the presence of an expanding agent containing a component reactive with the polyamine chain-lengthening agent or with the products of reaction thereof with polyisocyanates, and split-off gas.Type: GrantFiled: June 27, 1980Date of Patent: October 27, 1981Assignee: Metzeler Kautschuk GmbHInventor: Johannes Blahak
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Patent number: 4292411Abstract: An improved process for preparing integral skin polyurethane, wherein a reaction mixture comprising polyol, polyisocyanate the NCO groups of which are not directly bonded to an aromatic group, no more than 0.5 part by weight of water to 100 parts by weight of polyol, and a catalyst is reacted in a mould, said improvement consisting in using as catalyst a synergistic combination of at least one organic initiator, comprising at least one functional group of primary or secondary amines, with at least one organic compound of bismuth.Type: GrantFiled: March 10, 1980Date of Patent: September 29, 1981Assignee: S.A. PRBInventors: Lucien Jourquin, Eddie Du Prez
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Patent number: 4292412Abstract: This invention relates to new, hydrophilic, fabric softener foam compositions having improved release ability of the fabric softener abetted by the addition of a hydrophilic polyether polyol release agent to the aqueous reactant containing the fabric softener prior to reacting the aqueous reactant with a hydrophilic, isocyanate-terminated prepolymer to form the foam.Type: GrantFiled: January 16, 1980Date of Patent: September 29, 1981Assignee: W. R. Grace & Co.Inventor: Louis L. Wood
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Patent number: 4289856Abstract: A process for preparing an integral-skinned polyurethane foam wherein a foamable composition for formation of polyurethane which comprises a polyol, polyisocyanate, cross-linking agent, catalyst, and blowing agent is reacted and expanded in a mold, characterized in that(a) said polyol is a polyether polyol having a terminal ethylene oxide adduct rate of at least 60%, an OH number of 20 to 100 and a functionality of 4 to 8, or a polyester polyol having a functionality of 4 to 8;(b) said polyisocyanate is a non-aromatic polyisocyanate having an isocyanate index of 90 to 130;(c) said cross-linking agent is diethanolamine and ranges from 0.5 to 20 parts by weight based on 100 parts by weight of said polyol;(d) said catalyst is an organometallic salt; and(e) said blowing agent is a halogenated hydrocarbon of a low boiling point.Type: GrantFiled: November 14, 1979Date of Patent: September 15, 1981Assignee: The Toyo Rubber Industry Co., Ltd.Inventors: Masaki Yamamoto, Ichiro Azuma
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Patent number: 4286072Abstract: Polyisocyanurate catalysts are disclosed which have the formula: ##STR1## where R.sub.1 and R.sub.2 are independently selected from alkyl groups of less than about 3 carbon atoms or where R.sub.1 and R.sub.2 together comprise cycloalkyl or morpholino groups and where R.sub.3 is hydrogen or alkyl groups containing less than about 3 carbon atoms. Said catalysts are useful in promoting the reaction between a polyol and an aromatic polyisocyanate to prepare a polymer containing recurring isocyanurate and urethane linkages.Type: GrantFiled: July 21, 1980Date of Patent: August 25, 1981Assignee: Texaco Development Corp.Inventors: Edward E. McEntire, Robert L. Zimmerman
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Patent number: 4284730Abstract: The invention relates to carbodiimide- and/or uretonimine-isocyanurate-containing polyisocyanates, to the process for their preparation, and to microcellular foams prepared therefrom.These compositions may be prepared in the presence of the appropriate catalyst by(a) a partial trimerization of a mixture of polyisocyanate and carbodiimide and uretonimine containing polyisocyanate with trimer catalyst to the desired free isocyanate level,(b) sequential, partial carbodiimidization followed by partial trimerization of a polyisocyanate to the desired free isocyanate level(c) sequential partial trimerization of a polyisocyanate followed by partial carbodiimidization,(d) simultaneous conversion using the mixed catalyst system of carbodiimide and isocyanurate catalysts reacted to the desired free isocyanate level, and(e) blending liquid polyisocyanate with the carbodiimide and uretonimine containing polyisocyanate and isocyanurate containing polyisocyanate to the desired isocyanate level.Type: GrantFiled: February 7, 1980Date of Patent: August 18, 1981Assignee: BASF Wyandotte CorporationInventors: Thirumurti Narayan, Peter T. Kan
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Patent number: 4284826Abstract: Low viscosity chlorine containing polyether polyols, and more specifically a low molecular weight, low viscosity diol oligomer of 4,4,4-trichloro-1,2-epoxybutane of the formula ##STR1## wherein R and R' are each selected from hydrogen and --CH.sub.2 CCl.sub.3,wherein R and R' are different, and wherein n is an integer from 2 to 4; is useful in preparing flame retardant polyurethanes.Type: GrantFiled: November 16, 1979Date of Patent: August 18, 1981Assignee: Makhteshim Chemical Works Ltd.Inventor: David Aelony
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Patent number: 4284728Abstract: HR or high resiliency polyurethane foams having improved processing stability are prepared from reactive urethane formation promoting active hydrogen-containing compositions which have been pre-treated with carbon dioxide or a weak acid. The pre-treated active hydrogen-containing composition is, then, reacted with an organic polyisocyante to form the foams hereof.Type: GrantFiled: May 5, 1980Date of Patent: August 18, 1981Assignee: BASF Wyandotte CorporationInventors: John G. Demou, Edward R. Pray, Robert L. McBrayer
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Patent number: 4280979Abstract: Novel polyester diols are described containing aliphatically saturated divalent diacyl moieties and olefinically unsaturated divalent diacyl moieties in a mole ratio of 0.25:1 to 3:1; and divalent dioxy moieties which are linear and/or branched, preferably divalent branched dioxy moieties and divalent linear dioxy moieties in a mole ratio of 0.3:1 to 3:1, the diacyl moieties being bonded through ester linkage to the dioxy moieties in a mole ratio of at least 1.75 dioxy moieties per diacyl moiety, wherein the polyester diol is end-blocked essentially only by alcoholic hydroxyl groups and has an acid number of less than 3. The novel polyester diols are highly useful in the production of polyurethane/vinyl polymer copolymers by reaction with polyisocyanates and polymerizable ethylenically unsaturated monomers.Type: GrantFiled: September 18, 1979Date of Patent: July 28, 1981Assignee: Union Carbide CorporationInventors: Raymond A. Dunleavy, William A. Gill
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Patent number: 4278770Abstract: Polyol compositions containing effectively dispersed particulate material featuring critical dispersion characteristics are used to stabilize foam reaction in high resilience polyurethane foam.Type: GrantFiled: January 25, 1979Date of Patent: July 14, 1981Assignee: Olin CorporationInventors: Kiran B. Chandalia, Henry G. Barnowski
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Patent number: 4278769Abstract: A blowing agent concentrate comprising a chemical blowing agent and a thermoplastic composition vehicle therefore, said thermoplastic composition being a saturated polyester and/or copolyester having a crystalline melting point between 100.degree. C. and 220.degree. C. and a reduced viscosity of 0.4 dl/g to 1.6 dl/g; the use of such blowing agent concentrate in the formation of foamed articles of high molecular weight polyalkyleneterephthalate which articles can be filled and/or reinforced and/or flame proofed and can contain other additives. Particularly contemplated is the use of such blowing agent concentrate in the formation of glass fiber reinforced structural foam moldings of polyalkyleneterephthalates especially polytetramethylene terephthalates.Type: GrantFiled: February 21, 1979Date of Patent: July 14, 1981Assignee: Dynamit Nobel AGInventors: Peter Gebauer, Karl G. Sturm
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Patent number: 4277570Abstract: A method of producing cross-linked unsaturated polyesters from a solution of a linear unsaturated polyester in a cross-linking agent, wherein a reaction medium comprising said solution and containing free hydroxyl radicals is brought in contact, at room temperature and under atmospheric pressure, with at least one hydrolyzable chlorine-containing derivative in an amount from 0.1 to 10% by weight, based on said solution.Type: GrantFiled: April 3, 1980Date of Patent: July 7, 1981Assignee: Martine Anciaux widow WastesaegerInventor: Joseph P. Michel
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Patent number: 4275173Abstract: Polyurethane foams are prepared from polyols stabilized against oxidative degradation with a synergistic combination of a sterically hindered phenol and 4,4'-bis(.alpha.,.alpha.-dimethylbenzyl)diphenyl amine in which a portion of either the phenol or the amine or a portion of both have been replaced with a phenothiazine compound.Type: GrantFiled: April 21, 1980Date of Patent: June 23, 1981Assignee: The Dow Chemical CompanyInventor: Kenneth J. Hinze
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Patent number: 4275172Abstract: Described herein is a frothable thermosetting polyurethane-forming composition, a process for producing a curable froth from said composition, a process for applying the curable froth to a substrate and a cured cellular polyurethane produced from the curable froth.Type: GrantFiled: January 28, 1980Date of Patent: June 23, 1981Assignee: Union Carbide CorporationInventors: Bruce P. Barth, Robert N. Johnson, Walter P. Mayer
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Patent number: 4266040Abstract: A reaction product of (1) resin containing a plurality of electron deficient ethylenically unsaturated groups and (2) a polyazlactone. The product may be formed without the liberation of a gas and cured at a higher temperature with the liberation of a gas to thereby form foamed product.Type: GrantFiled: June 27, 1980Date of Patent: May 5, 1981Assignee: DeSoto, Inc.Inventor: Shiow-Ching Lin
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Patent number: 4265783Abstract: Polyols stabilized against oxidative degradation with a synergistic combination of a sterically hindered phenol and 4,4'-bis(.alpha.,.alpha.-dimethylbenzyl)diphenyl amine are improved by replacing a portion of either the phenol or the amine or a portion of both with a phenothiazine compound.Type: GrantFiled: April 21, 1980Date of Patent: May 5, 1981Assignee: The Dow Chemical CompanyInventor: Kenneth J. Hinze
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Patent number: 4259452Abstract: A method of producing flexible polyether polyurethane foams, which have a substantially skeletal reticulated structure, is disclosed. When the flexible foam is produced by reacting a polyhydroxyl compound with an organic polyisocyanate in the presence of a blowing agent by one-shot process, a catalyst and other additives, a mixture of (a) poly(oxyethylene-oxypropylene)polyether polyol containing 51 to 98% by weight of ethylene oxide component and (b) poly(oxyethylene-oxypropylene)polyether polyol containing not less than 51% by weight of propylene oxide component is used as the polyhydroxyl compound.Type: GrantFiled: May 15, 1979Date of Patent: March 31, 1981Assignee: Bridgestone Tire Company LimitedInventors: Toshio Yukuta, Kazuo Yagura, Nobuhisa Fuchigami
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Patent number: 4259454Abstract: Curable organic resin compositions, such as epoxy resins, are provided, based on the use of dialkyl hydroxy arylsulfonium salts in combination with certain orgainc oxidants such as iodosoaromatic esters, or the use of certain amines or transition metals in combination with organic peroxides. 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: June 9, 1980Date of Patent: March 31, 1981Assignee: General Electric CompanyInventor: James V. Crivello
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Patent number: 4258141Abstract: The invention concerns a process for the manufacture of flame resistant flexible polyurethane foams by reacting a mixture of diphenylmethane diisocyanates and polyphenylene polymethylene polyisocyanates having a functionality greater than 2 containing 40 to 90 percent by weight diphenylmethane diisocyanate based on the total weight of said mixture; polyols, cyanic acid derivatives such as cyanamide, dicyandiamide, guanidine, biguanidine, melamine, cyanuric alkyl esterhydrazides and -amides as flame inhibitors, and blowing agents; as well as, possibly, chain extenders and other additives. The flexible polyurethane foams are suited for the familiar areas of applications, but especially as sound-insulation material for the construction industry.Type: GrantFiled: April 10, 1979Date of Patent: March 24, 1981Assignee: BASF AktiengesellschaftInventors: Wolfgang Jarre, Gerhard Mueller, Otmar Zipp, Eckhard Ropte
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Patent number: 4258138Abstract: Method of foaming thermoplastic polymeric materials using as blowing agents polycyclic fused ring heterocycles containing the tetrazole moiety.Type: GrantFiled: October 15, 1979Date of Patent: March 24, 1981Assignee: The Dow Chemical CompanyInventor: Thomas C. Britton
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Patent number: 4255526Abstract: A moisture- and heat-resistant flexible polyurethane foam, which is free from lowering of the foam hardness due to moisture absorption during or after the production of the foam under a high temperature and high humidity condition and free from development of scorch during the production of the foam, can be obtained by adding an amino acid or an amino acid analogous compound to a raw material mixture, and foaming the resulting mixture.Type: GrantFiled: August 27, 1979Date of Patent: March 10, 1981Assignee: Bridgestone Tire Company LimitedInventors: Toshio Yukuta, Hiroya Fukuda, Seiji Ishii
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Patent number: 4254228Abstract: A reaction product of a fatty acid ester and an organic polyisocyanate is included in a foamable reaction mixture containing an organic polyisocyanate to provide a molded product which can be removed from a mold whose surface has not been coated with conventional mold release agents.Type: GrantFiled: July 18, 1979Date of Patent: March 3, 1981Assignee: Bayer AktiengesellschaftInventors: Helmut Kleimann, Wulf von Bonin, Heinz-Georg Schneider
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Patent number: 4251638Abstract: This invention relates to a process for the production of optionally cellular polyurethane plastics using a reactive filler obtained by finely grinding a distillation residue of the type accumulating in the commercial production of tolylene diisocyanate. It is possible in this way to recycle the previously unuseable slag-like residues and at the same time to improve the mechanical properties of the polyurethane plastics filled with them.Type: GrantFiled: October 29, 1979Date of Patent: February 17, 1981Assignee: Bayer AktiengesellschaftInventor: Artur Reischl
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Patent number: RE30676Abstract: A process for producing a flame resistant rigid polyurethane foam by reacting a reaction mixture comprising a polyetherpolyol and/or a polyesterpolyol having an active hydrogen atom, a polyisocyanate, water and/or a volatile foaming agent and an emulsifying agent, in which a specific amine compound shown by the general formula as defined hereinafter in the specification is added to the reaction system, the weight ratio of amine compound to polyetherpolyol and/or polyesterpolyol being from 70:30 to 30:70, and also the flame resistant rigid polyurethane foam produced by the process.Type: GrantFiled: January 8, 1980Date of Patent: July 14, 1981Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Shigeo Mori, Takeshi Fujita