Nitrogen Reactant Contains A N-(c-c-o)-group Patents (Class 521/167)
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Patent number: 4546116Abstract: The present invention relates to a process for the production of foams containing urethane groups by reacting polyether polyols with polyisocyanates in the presence of water and in the presence of an alkaline catalyst, a compound containing a labile halogen atom and, optionally, a tertiary nitrogen containing chain extender.The present invention also relates to the foams obtainable by this process.Type: GrantFiled: September 21, 1984Date of Patent: October 8, 1985Assignee: Bayer AktiengesellschaftInventors: Hanns P. Muller, Hans Hettel, Kuno Wagner, Peter Vogtel
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Patent number: 4543366Abstract: Sprayable urethane resin compositions and a process for preparing the sprayable resin compositions particularly with reinforcing materials such as chopped fiberglass, which process comprises reacting generally equal volumes of A and B side mixtures in a sprayable reaction to form a fast reacting, fast curing urethane resin, the A side mixture comprising an MDI or an MDI prepolymer prepared by reacting an MDI with a triol and a B side mixture comprising an auto catalytic, aromatic amine polyol having a hydroxyl number ranging from about 300 to 600, a viscosity reducing amount of a tetraethylene glycol and a catalyst to affect the rapid reaction and cure of the A and B side mixtures on spraying, the process may optionally include the incorporation of reinforcing materials, such as glass fibers and optionally may include the use of blowing agents to provide a lower density reinforced cured product.Type: GrantFiled: October 15, 1984Date of Patent: September 24, 1985Assignee: Thermocell Development, Ltd.Inventor: Stuart B. Smith
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Patent number: 4540626Abstract: The invention relates to the use of poly-N,N-di-(hydroxyalkyl)-polycarbonamides of aliphatic or cycloaliphatic polycarboxylic acids as reactive flame-retardants for polyurethane foams, and in particular polyurethane integral skin foams and polyurethane rigid foams which are produced with the aid of organic blowing agents. These reactive flame-retardants are added in quantities of from 11.5 to 50 parts by weight, and most preferably from 12 to 25 parts by weight, based on 100 parts of the relatively high molecular weight polyol used for the preparation of the foam. The integral skin or rigid foams produced are flame-resistant and because of their reduced flammability are capable of passing various regulation fire tests, and in particular those testing foams for use in vehicles for transport.Type: GrantFiled: August 29, 1984Date of Patent: September 10, 1985Assignee: Bayer AGInventors: Peter Haas, Geza Avar, Hartwig Grammes
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Patent number: 4530941Abstract: Reaction injection molded polyurethanes prepared from a composition comprising (A) a relatively high molecular weight polyol, (B) a chain extender and (C) a polyisocyanate or polyisothiocyanate are improved by replacing a portion of the relatively high molecular weight polyol with an aminated or partially aminated polyoxyalkylene material.Type: GrantFiled: November 2, 1983Date of Patent: July 23, 1985Assignee: The Dow Chemical CompanyInventors: Robert B. Turner, Richard D. Peffley, James A. Vanderhider
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Patent number: 4530938Abstract: A method for the manufacture of urethane-modified polyisocyanurate foams in which an isocyanate is blended with a "B" side comprising a polyol blend, a surfactant, a blowing agent, and a catalyst. The polyol blend comprises at least 5% (wt.) of a mixture of a polyalkoxylated amine and a polyalkoxylated quaternary ammonium borate ester, at least 40% (wt.) of a resin polyol, with any remainder being a polyether or polyester polyol. All components of the "B" side will remain a homogeneous liquid without phase separation and without the need for agitation for at least 3 days after blending. The resin polyols are preferably moderate viscosity, aromatic polyester polyols derived from polycarbomethoxyl-substituted diphenyls, polyphenyls, and benzyl esters of the toluate family.Type: GrantFiled: March 21, 1984Date of Patent: July 23, 1985Assignee: Akzona IncorporatedInventor: Kenneth B. White
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Patent number: 4530937Abstract: A method for the manufacture of polyisocyanurate foams which comprises blending a "B" side with an "A" side comprising an isocyanate. The "B" side comprises a diol, an amine/quaternary ammonium borate ester blend, a surfactant, a blowing agent, and a catalyst which is present in amounts up to about 20% of the total weight of the "B" side. The "B" side remains a homogeneous liquid for at least three days without the need for agitation and the foam formed by this method has a friability not exceeding 30%.Type: GrantFiled: March 21, 1984Date of Patent: July 23, 1985Assignee: Akzona IncorporatedInventor: Kenneth B. White
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Patent number: 4529744Abstract: Compatibility agents and polyol blend compositions are provided containing nonionic block ethoxylate propoxylate compounds, amine and amide diol compounds, and aromatic ester polyols, especially phthalate polyester polyols, which blends are miscible with fluorocarbon blowing agents. These blends are suitable for reaction with polyfunctional organic isocyanates in the presence of trimerization catalyst to make cellular polyisocyanurates.Type: GrantFiled: June 20, 1984Date of Patent: July 16, 1985Assignee: Stepan CompanyInventor: Robert J. Wood
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Patent number: 4528112Abstract: Novel polyether polyols made by alkoxylating a mixture of initiators are described. The initiator mixture is made up of about 60 to 90 wt. % of a partially alkoxylated trifunctional initiator and 10 to 40 wt. % of a secondary partially alkoxylated initiator having an active hydrogen functionality of from 4 to 8. Preferably, the alkylene oxide component to be reacted with the initiator mixture is a blend of ethylene oxide and propylene oxide. Flexible polyurethane foams made from these polyether polyols have improved load bearing properties as compared with those made from prior art polyols.Type: GrantFiled: July 26, 1983Date of Patent: July 9, 1985Assignee: Texaco Inc.Inventors: George P. Speranza, Michael Cuscurida
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Patent number: 4525488Abstract: A stable dispersion of polyaddition products (also called polyurethane polymer polyols) may be made by reacting a Mannich condensate with an organic polyisocyanate in a polyether polyol. The Mannich condensate is made by reacting a phenol with an alkanolamine and formaldehyde and should not be subsequently water-stripped or alkoxylated. If the Mannich condensate has its water content removed, the ultimate dispersion will be unstable and will phase separate. These dispersions are useful in the production of polyurethane foams.Type: GrantFiled: September 13, 1984Date of Patent: June 25, 1985Assignee: Texaco Inc.Inventors: Michael Cuscurida, George P. Speranza
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Patent number: 4521548Abstract: In the production of polyether polyols, the neutralization of alkaline catalysts using formic acid such that no precipitate forms.Type: GrantFiled: April 12, 1983Date of Patent: June 4, 1985Assignee: The Dow Chemical CompanyInventors: Jimmie D. Christen, Henry B. Taylor, III
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Patent number: 4521572Abstract: Novel modified polyether polyols made by first optionally alkoxylating, subsequent reaction with epoxy resins and final alkoxylation of mixtures of initiators is described. The initiator mixture is made up of about 60 to 90 wt. % of a partially alkoxylated trifunctional initiator and 10 to 40 wt. % of a secondary partially alkoxylated initiator having an active hydrogen functionality of from 4 to 8. Preferably, the alkylene oxide component is a blend of ethylene oxide and propylene oxide, and the resulting modified polyol molecules have 0.25 to 2.5 wt. % internally located epoxy resin. Flexible polyurethane foams made from these polyether polyols have improved load bearing properties as compared with those made from prior art polyols.Type: GrantFiled: February 22, 1984Date of Patent: June 4, 1985Assignee: Texaco Inc.Inventors: Michael Cuscurida, Bruce W. Peterson
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Patent number: 4518720Abstract: Flexible polyurethane foams having improved properties and made from modified polyether polyols are described. The polyether polyols are modified with adducts of epoxy resins, such as the diglycidyl ether of Bisphenol A, and diamines, such a polyoxypropylenediamine. The resulting modified polyether polyols have a molecular weight of from about 2,000 to 7,000. The mole ratio of epoxy equivalents to amine equivalents in the adduct ranges from about 2/1 to 10/1.Type: GrantFiled: June 11, 1984Date of Patent: May 21, 1985Assignee: Texaco Inc.Inventors: Michael Cuscurida, Harold G. Waddill, Bruce W. Peterson
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Patent number: 4510269Abstract: A process for the production of an optionally cellular polyurethane by reacting at least one compound having at least two hydrogen atoms which are reactive with isocyanate groups and have a molecular weight of from about 400 to 10,000 with polyisocyanates in the presence of a poly(dialkylaminoalkyl)ether catalyst corresponding to the formula ##STR1## wherein A represents a straight-chain or branched-chain (x+1)-valent, optionally substituted C.sub.2 -C.sub.6 alkyl radical,x represents an integer of 1 to 4 andR.sup.1 -R.sup.4 represent the same or different C.sub.1 -C.sub.4 alkyl radicals, which optionally form a heterocyclic radical with N.Type: GrantFiled: August 6, 1984Date of Patent: April 9, 1985Assignee: Bayer AktiengesellschaftInventors: Richard Kopp, Hans-Albrecht Freitag
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Patent number: 4507407Abstract: A process of coloring polyurethane resins during the production of same with reactive colorants having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 are selected from halogen, carboxylic acid, alkanoyl, aryloyl, alkyl, aryl, cyano, sulfonylalkyl, sulfonylaryl, thioalkyl, thioaryl, sulfinylalkyl, sulfinylaryl, dithioalkyl, dithioaryl, thiocyano, amidoalkyl, amidodialkyl, oxyalkyl, oxyaryl, hydrogen, sulfonamidoalkyl, sulfonamidoaryl, sulfonamidodialkyl, sulfonamidodiaryl, carbocyclic forming polymethylene chains, sulfenamidoalkyl, sulfenamidodialkyl, sulfenamidoaryl, sulfenamidodiaryl, sulfinamidoalkyl, sulfinamidodialkyl, sulfinamidoaryl, sulfinamidodiaryl; and A is an organic dyestuff coupler that is resistant to stannous octanoate and flame retardant compounds and which has functionality through reactive substituents thereof.Type: GrantFiled: June 25, 1984Date of Patent: March 26, 1985Assignee: Milliken Research CorporationInventors: Edward W. Kluger, Patrick D. Moore
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Patent number: 4503167Abstract: A method for the manufacture of urethane-modified polyisocyanurate foams in which an isocyanate is blended with a "B" side comprising a polyol blend, a surfactant, a blowing agent, and optionally, a catalyst. The polyol blend comprises at least 5% (wt.) of a mixture of a polyalkoxylated amine and a polyalkoxylated quaternary ammonium borate ester, at least 45% (wt.) of a resin polyol, with any remainder being a polyether or polyester polyol. All components of the "B" side will remain a homogeneous liquid without phase separation and without the need for agitation for at least 3 days and 7 days after blending.Type: GrantFiled: March 21, 1984Date of Patent: March 5, 1985Assignee: Akzona IncorporatedInventor: Kenneth B. White
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Patent number: 4500655Abstract: This invention relates to polyols that can be used to prepare rigid foams, such polyols being prepared by reacting a propoxylation product with melamine and a lower alkylene carbonate. The propoxylation product (which can contain some ethylene oxide) is prepared by propoxylating a Mannich condensate prepared by reacting phenol or a C.sub.1 -C.sub.12 alkylphenol with formaldehyde and diethanolamine in the mole ratios of from 1:1:1 to about 1:3:3.Type: GrantFiled: December 29, 1983Date of Patent: February 19, 1985Assignee: Texaco Inc.Inventor: Michael E. Brennan
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Patent number: 4499038Abstract: The present invention is directed to a process for the production of polyurea-based microcellular moldings comprising reacting(a) at least one diisocyanate or polyisocyanate containing only aromatically bound isocyanate groups,(b) at least one compound containing at least two isocyanate-reactive groups, and(c) optionally the auxiliaries and additives known in polyurethane chemistry, in closed molds, components (a)-(c) being processed as a one-shot system by reaction injection molding, characterized in that component (b) comprises at least one polyether compound (b1) optionally in admixture with other isocyanate-reactive compounds and containing at least 3 aliphatically bonded ether groups and n-aliphatically bonded isocyanate-reactive groups, n standing for an integer or, statistically a fraction of from 2-4(i) at least (100:n) % of the isocyanate-reactive groups present in component (b1) being aliphatically bonded primary and/or secondary amino groups,(ii) at least 10 equivalent % of said amino groups beingType: GrantFiled: November 7, 1983Date of Patent: February 12, 1985Assignee: Bayer AktiengesellschaftInventors: Walter Schafer, Hans-Joachim Meiners, Klaus Seel, Wolfgang Reichmann, Kuno Wagner, Kurt Findeisen
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Patent number: 4489178Abstract: The invention relates to Mannich condensates of phenol, formaldehyde and diethanolamine in which a minor amount (e.g., less than 1%) of melamine is dissolved subsequent to alkoxylation with propylene oxide or a mixture of propylene oxide and ethylene oxide. The thus-prepared alkoxylated Mannich condensates are then used as all or a part of the polyol component in making a rigid polyurethane foam having improved fire retardancy properties.Type: GrantFiled: October 25, 1983Date of Patent: December 18, 1984Assignee: Texaco Inc.Inventors: Michael E. Brennan, George P. Speranza
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Patent number: 4487852Abstract: The invention relates to Mannich condensates of phenol, formaldehyde and an amine mixture consisting of diethanolamine and melamine which is then alkoxylated with propylene oxide or a mixture of propylene oxide and ethylene oxide. The thus-prepared alkoxylated Mannich condensates are then used as all or a part of the polyol component in making a rigid polyurethane foam having improved fire retardancy properties.Type: GrantFiled: October 25, 1983Date of Patent: December 11, 1984Assignee: Texaco Inc.Inventors: Michael E. Brennan, George P. Speranza
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Patent number: 4485195Abstract: This invention relates to polyols that can be used to prepare rigid foams having improved fire retardancy properties, such polyols being prepared by alkoxylating with propylene oxide (which can contain some ethylene oxide) a reaction product prepared by heating a mixture of a Mannich condensate, a minor amount of melamine and 1 to 6 mols of formaldehyde, based on the melamine; the Mannich condensate having been prepared by reacting phenol or a C.sub.1 -C.sub.12 alkylphenol with formaldehyde and diethanolamine in the mol ratios of from 1:1:1 to about 1:3:3.Type: GrantFiled: October 25, 1983Date of Patent: November 27, 1984Assignee: Texaco Inc.Inventors: Michael E. Brennan, George P. Speranza
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Patent number: 4474901Abstract: The invention relates to reaction injection molded elastomers derived from high molecular weight amine terminated polyethers having greater than 50 percent of their active hydrogens in the form of amine hydrogens, low molecular weight amine terminated polyethers and a polyisocyanate. The reaction injection molded (RIM) elastomers of this invention are useful, for example, as automobile body parts.Type: GrantFiled: June 8, 1983Date of Patent: October 2, 1984Assignee: Texaco Inc.Inventor: Richard J. G. Dominguez
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Patent number: 4469822Abstract: The subject invention relates to polyol compositions which are alkylene oxide adducts of a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and mixtures thereof. Low molecular weight diols may also be used as a co-initiator in combination with the glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and mixtures thereof.The subject polyol compositions are particularly useful in the preparation of rigid polyurethane foams.Type: GrantFiled: July 14, 1983Date of Patent: September 4, 1984Assignee: BASF Wyandotte CorporationInventors: Theodore O. Stolz, Richard A. Moore, James P. Lutz
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Patent number: 4465791Abstract: Polyol-catalyst mixtures, useful in the preparation of rigid polyurethane cellular products, are prepared simultaneously by reacting a Mannich base compound, water, and an epoxide and subsequently removing the water from the reaction mixture. Also provided are new rigid polyurethane cellular products having a high content of isocyanurate linkages, superior heat distortion temperatures and improved insulating properties, which products are obtained by reacting a polyisocyanate with the aforementioned polyol-catalyst mixture.Type: GrantFiled: August 4, 1983Date of Patent: August 14, 1984Assignee: Texaco Inc. (parent)Inventors: Howard P. Klein, George P. Speranza
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Patent number: 4452923Abstract: A high-strength polymer-modified polyol comprises a polyol and from 40 to 80% by weight of the reaction product of a polyisocyanate and a tertiary-N-polyolamine based on the combined weight of the polyol and reaction product.Also included are methods of forming the polymer-modified polyol; a polymer-modified polyol obtained by dilution of the high strength polymer-modified polyol; the use of the polymer-modified polyols in the manufacture of polyurethane products and the polyurethane products so obtained.The polymer-modified polyols are particularly useful for preparing highly resilient flexible foams.Type: GrantFiled: July 20, 1982Date of Patent: June 5, 1984Assignee: Imperial Chemical Industries PLCInventors: William G. Carroll, Peter Farley
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Patent number: 4451588Abstract: High load bearing flexible polyurethane foams are made using novel polyether polyols which may be made by alkoxylating a mixture of initiators. The initiator mixture is made up of about 60 to 90 wt. % of a partially alkoxylated trifunctional initiator and 10 to 40 wt. % of a secondary partially alkoxylated initiator having an active hydrogen functionality of from 4 to 8. Preferably, the alkylene oxide component to be reacted with the initiator mixture is a blend of ethylene oxide and propylene oxide.Type: GrantFiled: July 26, 1983Date of Patent: May 29, 1984Assignee: Texaco Inc.Inventors: George P. Speranza, Michael Cuscurida, Bruce W. Peterson
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Patent number: 4448904Abstract: The invention is a method of making a molded reaction injection molded elastomer. The reaction injection molded (RIM) elastomer is made by injecting via a RIM machine into a mold cavity of the desired configuration, a formulation comprising in the first stream amine terminated polyethers of greater than 1,500 molecular weight, a chain extender, and in the second stream methylene bis(phenylisocyanate) with a 2,4' isomer of greater than about 10%. RIM elastomers are useful, for example, for automobile body parts.Type: GrantFiled: June 8, 1983Date of Patent: May 15, 1984Assignee: Texaco Inc.Inventor: Richard J. G. Dominguez
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Patent number: 4444917Abstract: Polyisocyanurate foam in which the polyol content is largely a polyol mixture prepared by the transesterification with a glycol of a residue obtained from the manufacture of dimethyl terephthalate and in which the foam has been prepared using fluorocarbon blowing agent and amine triol to improve compatibility between the polyol and the blowing agent.Type: GrantFiled: August 1, 1983Date of Patent: April 24, 1984Assignee: GAF CorporationInventors: Louis L. Grube, Charles J. Horner, Jr.
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Patent number: 4444916Abstract: Polyisocyanurate foam in which the polyol content is largely a polyol mixture prepared by the transesterification wtih a glycol of a residue obtained from the manufacture of dimethyl terephthalate and in which the foam has been prepared using fluorocarbon blowing agent and amide diol to improve compatibility between the polyol and the blowing agent.Type: GrantFiled: August 1, 1983Date of Patent: April 24, 1984Assignee: GAF CorporationInventors: Louis L. Grube, Charles J. Horner, Jr.
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Patent number: 4444914Abstract: A composition comprising a combustible material, especially a polyurethane, and a smoke and toxic gas (STG) suppressant system, comprising (A) an STG-suppressant with (B) a combustion rate- and/or flame temperature-reducing component, or (C) a char-stabilizer, components (B) and (C) preferably both being present.Type: GrantFiled: September 9, 1982Date of Patent: April 24, 1984Inventors: Derek A. Smith, Stephen J. Grayson, John Hume
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Patent number: 4444920Abstract: Mixtures of aromatic polyols containing ester functionalities suitable for use in rigid foams prepared by reacting a dimethyl terephthalate waste stream containing methyl p-formylbenzoate over a metal alkoxide catalyst and subsequently transesterifying the product with a polyalkylene glycol in the presence of heat are described. These novel polyols may be blended with conventional polyols to yield excellent rigid foams, thus serving as useful polyol extenders. These low hydroxyl number extender polyols unexpectedly have a low relative viscosity.Type: GrantFiled: March 18, 1983Date of Patent: April 24, 1984Assignee: Texaco Inc.Inventor: Michael E. Brennan
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Patent number: 4444915Abstract: Polyisocyanurate foam in which the polyol content is largely a polyol mixture prepared by the transesterification with a glycol of a residue obtained from the manufacture of dimethyl terephthalate and in which the foam has been prepared using fluorocarbon blowing agent and alkoxylated alkyl amine to improve compatibility between the polyol and the blowing agent.Type: GrantFiled: August 1, 1983Date of Patent: April 24, 1984Assignee: GAF CorporationInventors: Louis L. Grube, Charles J. Horner, Jr.
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Patent number: 4444704Abstract: Integral skin polymethane foams can be produced in a short time by impingement mixing a solution comprising polyols containing as an essential component a polyol derived from aromatic amine, a blowing agent and a special catalyst of tertiary amine salt having a hetero ring in the molecule, with a solution comprising one or more polyisocyanates, followed by injection into a closed mold and foaming and curing therein.Type: GrantFiled: January 19, 1982Date of Patent: April 24, 1984Assignee: Hitachi, Ltd.Inventors: Yasuo Hira, Susumu Tsuzuku, Masao Gotoh, Hitoshi Yokono, Reishi Naka
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Patent number: 4442238Abstract: Mixtures of aromatic polyols containing amide and ester functionalities suitable for use in rigid foams prepared by reacting a phthalic acid residue with an amino alcohol and subsequent alkoxylation are described. These novel polyols may be blended with conventional polyols to yield rigid foams with better flammability resistance as compared with foams made from conventional polyols alone.Type: GrantFiled: November 22, 1982Date of Patent: April 10, 1984Assignee: Texaco Inc.Inventors: Robert L. Zimmerman, George P. Speranza
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Patent number: 4436843Abstract: High-resilience polyurethane foams made from polyols which are alkylene oxide adducts of alkylenediamines have been found to have surprisingly improved resistance to shrinkage. These foams have particular utility as seating support because they can be molded with good processing characteristics yet contain open cells and resist shrinkage. It is preferred that the polyols used be based on ethylenediamine.Type: GrantFiled: December 17, 1982Date of Patent: March 13, 1984Assignee: Texaco Inc.Inventors: Richard L. Rowton, Michael Cuscurida
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Patent number: 4433170Abstract: The alkylene oxide adduct of bis(aminoethyl)ether may be reacted with formaldehyde in the presence of hydrogen and a hydrogenation-dehydrogenation catalyst to produce new compounds of the formula ##STR1## where R is hydrogen or lower alkyl and R" is methyl or ##STR2## These compounds show unexpectedly high efficiency as polyurethane catalysts. Fewer equivalents of this amine are required to produce foams having the same reaction profile as foams made with piror art amine catalysts.Type: GrantFiled: July 20, 1981Date of Patent: February 21, 1984Assignee: Texaco Inc.Inventors: Robert L. Zimmerman, Ernest L. Yeakey
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Patent number: 4425445Abstract: A method for the manufacture of polyisocyanurate foams which comprises blending a "B" side with an "A" side comprising an isocyanate. The "B" side comprises a diol, an amine/quaternary ammonium borate ester blend, a surfactant, a blowing agent, and a metal catalyst whose weight does not exceed 1.5% of the total weight of the "B" side. The "B" side remains a homogeneous liquid for at least seven days without the need for agitation and the foam formed by this method has a friability not exceeding 30%.Type: GrantFiled: March 17, 1983Date of Patent: January 10, 1984Assignee: Akzona, Inc.Inventor: Kenneth B. White
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Patent number: 4425444Abstract: A method for the manufacture of urethane-modified polyisocyanurate foams in which an isocyanate is blended with a "B" side comprising a polyol blend, a surfactant, a blowing agent, and a catalyst. The polyol blend comprises at least 5% (wt.) of a mixture of a polyalkoxylated amine and a polyalkoxylated quaternary ammonium borate ester, at least 40% (wt.) of a resin polyol, with any remainder being a polyether or polyester polyol. All components of the "B" side will remain a homogeneous liquid without phase separation and without the need for agitation for at least 7 days after blending. The resin polyols are preferably moderate viscosity, aromatic polyester polyols derived from polycarbomethoxyl-substituted diphenyls, polyphenyls, and benzyl esters of the toluate family.Type: GrantFiled: March 17, 1983Date of Patent: January 10, 1984Assignee: Akzona IncorporatedInventor: Kenneth B. White
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Patent number: 4421871Abstract: The subject invention relates to polyol compositions comprising the reaction product prepared by reacting from 4 to 9 moles of propylene oxide per mole of toluenediamine by weight at temperatures greater than 140.degree. C. in the presence of at least 0.6 parts of alkali metal hydroxide per 100 parts by weight of toluenediamine, with the proviso that at least 0.8 part by weight of alkali metal hydroxide is used if the toluenediamine is 2,4-toluenediamine, or 2,6-toluenediamine, or mixtures thereof.Type: GrantFiled: February 22, 1983Date of Patent: December 20, 1983Assignee: BASF Wyandotte CorporationInventors: Alexander Korczak, William W. Levis, Jr.
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Patent number: 4410641Abstract: Polyisocyanurate-polyurethane foams are prepared by reacting an organic polyisocyanate with oxyethylated aromatic amines and diols having equivalent weights from 31 to 100 and at an isocyanate index of 150 to 500 in the presence of a trimerization catalyst and a blowing agent.Type: GrantFiled: January 4, 1982Date of Patent: October 18, 1983Assignee: BASF Wyandotte CorporationInventors: Thirumurti Narayan, Theodore O. Stolz, John T. Patton, Jr.
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Patent number: 4409341Abstract: A composition for polyurethane foam comprising (a) polyols containing at least one of alkylene oxide adducts of aniline-formaldehyde condensates and alkylene oxide adducts of reduced compounds of nitrated toluenes in an amount of 30 to 70% by weight of the polyols, (b) at least one isocyanate of the formula: ##STR1## a fire retardant, together with one or more conventional catalysts, foam stabilizers, blowing agents and the like additives, can give fire retardant, high impact and heat resistant urethane foams.Type: GrantFiled: December 31, 1981Date of Patent: October 11, 1983Assignee: Hitachi, Ltd.Inventors: Yasuo Hira, Susumu Tsuzuku, Makoto Iida, Masao Gotoh, Hitoshi Yokono, Yoshikazu Kimura, Kazumi Iijima
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Patent number: 4401772Abstract: A polyurethane foam which is a reaction product of a polyol reactant, an organic polyisocyanate reactant, a reaction catalyst and a foaming agent, said polyol reactant is made by (1) reacting starch with methanol in the presence of an acid catalyst to form a crude methyl glucoside reaction product; (2) then admixing this reaction product with an amine in the presence of a basic catalyst followed by (3) oxyalkylating this mixture with a lower alkylene oxide.Type: GrantFiled: April 15, 1982Date of Patent: August 30, 1983Assignee: Olin CorporationInventors: Stephen Fuzesi, John G. Bayusik
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Patent number: 4397966Abstract: The subject invention relates to polyol compositions which are alkylene oxide adducts of a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of ammonia, an aliphatic amine having a molecular weight of from 20 to 120, an alkanolamine having a molecular weight of from 50 to 120, and mixtures thereof. Low molecular weight diols may also be used as a co-initiator in combination with ammonia, an aliphatic amine, an alkanolamine, or mixtures thereof.The subject polyol compositions are particularly useful in the preparation of rigid polyurethane foams.Type: GrantFiled: December 1, 1981Date of Patent: August 9, 1983Assignee: BASF Wyandotte CorporationInventors: Theodore O. Stolz, Richard A. Moore, James P. Lutz
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Patent number: 4394463Abstract: The modification of rigid amino polyols by their reaction with epoxy resin and alkylene oxides is described. The modified polyols produce rigid polyurethane foams that have higher heat distortion temperatures and better low temperature properties than foams made with nonmodified polyols. The viscosities of the epoxy resin-modified amino polyols are not significantly different than those of the prior art amino polyols although they are of a higher functionality.Type: GrantFiled: August 3, 1981Date of Patent: July 19, 1983Assignee: Texaco Inc.Inventors: Michael Cuscurida, Neal J. Grice, George P. Speranza
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Patent number: 4388420Abstract: There is provided a process for preparing a microcellular foam with improved green strength properties comprising the step of reacting an organic polyisocyanate with polyalkylene ether polyol and from 1 to about 35 parts (by weight, per hundred parts of said polyol) of a chain extender in the presence of from about 0.1 to about 10.0 parts (by weight, per hundred parts of said polyol) of a compound selected from the group consisting of: ##STR1## wherein: (a) said polyol has an average functionality of from about 2 to about 8 and an average equivalent weight of from about 1000 to about 2700, and from about 0.8 to about 1.2 equivalents of said polyol are reacted per equivalent of isocyanate;(b) R is a divalent alkylene radical containing from about 1 to about 4 carbon atoms; and(c) R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from the group consisting of hydroxyalkyl containing from about 1 to about 4 carbon atoms and from about 1 to about 2 hydroxyl groups.Type: GrantFiled: November 30, 1981Date of Patent: June 14, 1983Assignee: BASF Wyandotte CorporationInventor: Robert L. McBrayer
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Patent number: 4381353Abstract: A polyurethane foam formulation for use primarily in sprayed applications has been discovered which provides a smoother than average foam surface. The formulation includes the addition of a primary or secondary mono or polyamine having a hydrogen functionality of two or greater. The compressive strengths of the resultant foams are equivalent to or greater than equivalent formulations without the amines, even though the amines also reduce fluorocarbon loss yielding lower density foams.Type: GrantFiled: November 2, 1981Date of Patent: April 26, 1983Assignee: Texaco Inc.Inventor: Kenneth G. McDaniel
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Patent number: 4374934Abstract: A select, low density semi-flexible foam polymer composition is prepared from a very select reaction mixture which is characterized by a foaming agent which consists essentially of water and is substantially free of fluorinated hydrocarbon compounds, and a relatively low reaction mixture NCO/OH index of from about 20 to about 70. The foam polymer composition is particularly useful in packaging fragile or shock-sensitive objects.Type: GrantFiled: March 30, 1981Date of Patent: February 22, 1983Assignee: Olin CorporationInventor: Robert J. Raynor
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Patent number: 4374209Abstract: A polymer-modified polyol is formed by polymerizing an olamine, particularly an alkanolamine, with an organic polyisocyanate in the presence of a polyol. The alkanolamine reacts polyfunctionally with the polyisocyanate to produce polyaddition products.The polyaddition products may constitute a stable dispersion in the polyol and the resulting polymer-modified polyol is particularly useful as a polyol starting material for reaction with a polyisocyanate in the manufacture of polyurethane foam.Type: GrantFiled: April 29, 1981Date of Patent: February 15, 1983Assignee: Interchem International S.A.Inventor: Jeffrey P. Rowlands
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Patent number: 4366265Abstract: A novel process for the preparation of starch-amine-based polyols which involves reacting starch with a polyhydric alcohol in the presence of an acid catalyst to form a crude polyglucoside reaction product, the proportion of alcohol to starch being at least 0.3 mole of alcohol per glucose unit weight of starch. An amine compound is admixed with the reaction product, and the mixture is then oxyalkylated with a lower alkylene oxide. Polyurethane foams may be prepared by reacting the resulting polyether polyols with an organic polyisocyanate in the presence of a foaming agent and a reaction catalyst. The physical properties of the resulting foams are excellent.Type: GrantFiled: April 14, 1982Date of Patent: December 28, 1982Assignee: Olin CorporationInventors: Stephen Fuzesi, John G. Bayusik
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Patent number: 4359542Abstract: Graft copolymers are prepared by the polymerization of an ethylenically unsaturated monomer, or a mixture of such monomers, in the presence of an azo di-ester polyol. Presence of the azo group in the polyol reactant itself serves as a free radical initiator site for the graft copolymerization reaction. The copolymers formed are utilized in the formulation of polyurethane compositions.Type: GrantFiled: August 5, 1981Date of Patent: November 16, 1982Assignee: Olin CorporationInventors: Kiran B. Chandalia, Frank J. Preston
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Patent number: 4359573Abstract: A novel process for the preparation of methyl glucoside-amine-based polyols which involves reacting starch with methanol in the presence of an acid catalyst to form a crude methyl glucoside reaction product. An amine compound is admixed with the reaction product, and the mixture is then oxyalkylated with a lower alkylene oxide. Polyurethane foams may be prepared by reacting the resulting polyether polyols with an organic polyisocyanate in the presence of a foaming agent and a reaction catalyst. The physical properties of the resulting foams are excellent.Type: GrantFiled: December 22, 1980Date of Patent: November 16, 1982Assignee: Olin CorporationInventors: Stephen Fuzesi, John G. Bayusik