-c-x-c- Compound Contains A Nitrogen Atom Patents (Class 521/115)
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Patent number: 6458860Abstract: Provided herein are catalyst systems useful for providing polyurethane foam products which exhibit low fogging characteristics while possessing favorable overall physical properties when used as interior components of automobiles and other motorized vehicles.Type: GrantFiled: January 7, 2002Date of Patent: October 1, 2002Assignee: Huntsman Petrochemical CorporationInventors: Heiko H. Humbert, Robert Allison Grigsby, Jr.
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Patent number: 6433032Abstract: Process for the preparation of open celled rigid polyurethane or urethane-modified polyisocyanurate foams by reaction of a polyfunctional isocyanate-reactive composition with a polyisocyanate composition comprising a prepolymer of NCO-value 21-30% based on a high molecular weight oxyethylene-containing polyol.Type: GrantFiled: March 30, 1999Date of Patent: August 13, 2002Assignee: Imperial Chemical Industries PLCInventor: Alan James Hamilton
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Patent number: 6420443Abstract: A process for preparing hydrocarbon blown rigid polyurethane foam using a novel compatibilizing agent. The compatibilizing agent is an alkoxylate adduct of a triglyceride with a hydroxyl value of about 100 or less. The triglyceride adduct has an ethylene oxide content of at least 40% by weight thereof. These adducts may be used alone or in mixture with other compatibilizers. The compatibilizers increase the stability of rigid foam formulation emulsions containing greatly increased hydrocarbon blowing agent levels while showing little or no adverse affect to physical properties of foams prepared therewith.Type: GrantFiled: September 9, 1999Date of Patent: July 16, 2002Assignee: Crompton CorporationInventors: R. Christopher Clark, Brian L. Hilker
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Patent number: 6387972Abstract: An improved process to enhance polyurethane foam performance is described. Polyurethane foam is prepared by reactions between a polyisocyanate and a polyfunctional isocyanate-reactive component wherein said reactions are conducted in the presence of catalysts composed of (a) a specific reactive tertiary amine compound selected from the group consisting of bis(dimethylaminopropyl)amino-2-propanol, bis(dimethylaminopropyl)amine, dimethylaminopropyldipropanolamine, bis(dimethylamino)-2-propanol, N,N,N′-trimethyl-N′-hydroxyethyl-bis(aminoethyl)ether and mixtures thereof; and (b) at least one carboxylic acid salt of the specific reactive tertiary amine compound selected from the group consisting of hydroxy-carboxylic acid salts and halo-carboxylic acid salts.Type: GrantFiled: February 15, 2001Date of Patent: May 14, 2002Assignee: Crompton CorporationInventors: Hassan El Ghobary, Louis Muller
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Patent number: 6380274Abstract: A composition having the formula: wherein R is a linear alkyl, branched alkyl, cycloalkyl, polycyclic alkyl, alkylaminoalkyl, or alkyloxyalkyl group having 1 to 20 carbon atoms and at least one primary, secondary, or tertiary amino functional group. The composition is effective as a catalyst in the production of polyurethanes.Type: GrantFiled: August 8, 2001Date of Patent: April 30, 2002Assignee: Air Products and Chemicals, Inc.Inventors: Ning Chen, Richard Paul Underwood, Mark Leo Listemann
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Patent number: 6337355Abstract: An apparatus is disclosed for injecting an expandable or foaming material in a closed sectional structure of a body. The apparatus is suitable for mass-producing vehicles, such as automobiles efficiently. This apparatus is provided with a manipulator (38) movable to a desired position, a injector (50) fixed to the manipulator, a device (56) for supplying the expandable or foaming material to the injector, and a controller (40) adapted to control the position of the manipulator (10) so that the injector is set in a position in which the foaming material can be supplied to the closed sectional structure of the vehicle body through an injection port of the same closed sectional structure, and also adapted to control the supply device so that the foaming material can be injected and filled in the closed sectional structure thereof by only such an amount that was set in accordance with the volume of the inside of the sectional structure.Type: GrantFiled: July 22, 1999Date of Patent: January 8, 2002Assignees: Sunstar Giken Kabushiki Kaisha, Uni-Sunstar B.V.Inventors: Kiichi Yamashita, Tatsuya Wakamori, Masahito Mori, Mutsuhisa Miyamoto
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Patent number: 6335378Abstract: Process for preparing rigid polyurethane or urethane-modified polyisocyanurate foam using as blowing agent a mixture containing from 1 to 50 mole % 1,1,1,3,3-pentafluoropropane and from 50 to 99 mole % isopentane and/or n-pentane.Type: GrantFiled: February 9, 2000Date of Patent: January 1, 2002Assignee: Imperial Chemical Industries PLCInventor: Luc Ferdinand Leon Colman
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Patent number: 6153659Abstract: 3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide is a new compound which is useful as a catalyst in the production of polyurethane foams.Type: GrantFiled: December 7, 1999Date of Patent: November 28, 2000Assignee: Air Products and Chemicals, Inc.Inventors: Richard Van Court Carr, Ning Chen, Mark Leo Listemann, Richard Paul Underwood
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Patent number: 6121338Abstract: Process for preparing rigid polyurethane or urethane-modified polyisocyanurate foam using as blowing agent a mixture containing from 1 to 50 mole % 1,1,1,3,3-pentafluoropropane and from 50 to 99 mole % isopentane and/or n-pentane.Type: GrantFiled: September 23, 1998Date of Patent: September 19, 2000Assignee: Imperial Chemical Industries PLCInventor: Luc Ferdinand Leon Colman
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Patent number: 6077927Abstract: A method of providing for manufacturing a colored polymer resin having the steps of:(a) blending a disazo colorant into a mixture of monomers, the colorant having a poly(oxyalkylene) substituent comprising from 2 to 200 alkylene oxide residues, bonded to each end of the disazo chromophore, the poly(oxyalkylene) substituent having a nucleophilic terminal group which is capable of reacting with at least a portion of the monomers;(b) providing conditions under which the monomers and disazo colorant polymerize to form a colored polymer resin.Type: GrantFiled: October 23, 1998Date of Patent: June 20, 2000Assignee: Milliken & CompanyInventors: Eric B. Stephens, Mark E. Ragsdale, David J. Moody
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Patent number: 6051527Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of a compound having the following formula I: ##STR1## where R.sup.1 is hydrogen or a C1-C4 linear or branched alkyl, hydroxyalkyl or aminoalkyl group;R.sup.2 is hydrogen or a C1-C6 linear or branched alkyl, hydroxyalkyl or aminoalkyl group; andR.sup.3 and R.sup.4 are independently hydrogen or a C1-C10 linear or branched alkyl, hydroxyalkyl or aminoalkyl group which may contain ether functionality.Type: GrantFiled: February 17, 1999Date of Patent: April 18, 2000Assignee: Air Products and Chemicals, Inc.Inventors: Ann Coates Lescher Savoca, Richard Paul Underwood, Richard Van Court Carr, James Stephen Emerick, Mark Leo Listemann
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Patent number: 6037496Abstract: 3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide is a new compound which is useful as a catalyst in the production of polyurethane foams.Type: GrantFiled: March 26, 1999Date of Patent: March 14, 2000Assignee: Air Products and Chemicals, Inc.Inventors: Richard Van Court Carr, Ning Chen, Mark Leo Listemann, Richard Paul Underwood
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Patent number: 5886057Abstract: Dicarboxylic acids or esters thereof are recovered from solid phase polyester materials, such as post-consumer products and factory scrap, by subjecting the polyester to at least two hydrolysis stages in at least the first of which the amount of water used is substantially less than needed to effect total conversion of the polyester to the dicarboxylic acid. Also the diol content is controlled in the course of carrying out the hydrolysis. The hydrolysis reactions may be preceded by reaction of the polyester with a diol, the resulting depolymerisation products then being hydrolysed.Type: GrantFiled: January 4, 1996Date of Patent: March 23, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: James Lumsden Harvie, Stuart Michael Heppell
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Patent number: 5874483Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of a compound having the following formula I: ##STR1## where R.sup.1 is hydrogen or a C1-C4 linear or branched alkyl, hydroxyalkyl or aminoalkyl group;R.sup.2 is hydrogen or a C1-C6 linear or branched alkyl, hydroxyalkyl or aminoalkyl group; andR.sup.3 and R.sup.4 are independently hydrogen or a C1-C10 linear or branched alkyl, hydroxyalkyl or aminoalkyl group which may contain ether functionality.Type: GrantFiled: September 27, 1995Date of Patent: February 23, 1999Assignee: Air Products and Chemicals, Inc.Inventors: Ann Coates Lescher Savoca, Richard Paul Underwood, Richard Van Court Carr, James Stephen Emerick, Mark Leo Listemann
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Patent number: 5864002Abstract: A method of providing for manufacturing a colored polymer resin having the steps of:(a) blending a disazo colorant into a mixture of monomers, the colorant having a poly(oxyalkylene) substituent comprising from 2 to 200 alkylene oxide residues, bonded to each end of the disazo chromophore, the poly(oxyalkylene) substituent having a nucleophilic terminal group which is capable of reacting with at least a portion of the monomers;(b) providing conditions under which the monomers and disazo colorant polymerize to form a colored polymer resin.Type: GrantFiled: October 18, 1996Date of Patent: January 26, 1999Assignee: Milliken Research CorporationInventors: Eric B. Stephens, Mark E. Ragsdale, David J. Moody
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Patent number: 5844012Abstract: A method for producing water-blown molded flexible polyurethane foam which comprises reacting and foaming in one step in a mold a reaction mixture comprising a polyol, an organic polyisocyanate, a urethane catalyst composition and water and a trimerization catalyst which is a quaternary ammonium salt or an alkali metal or alkaline earth metal salt of a Bronsted acid having a pKa of >1, characterized in that the trimerization catalyst is present in an amount from about 0.005 to 0.04 gram milliequivalents per 100 grams of polyol. The preferred trimerization catalyst is an alkali metal N-(2-hydroxyphenyl)methyl glycinate, especially an alkali metal N-(2-hydroxy-5-nonylphenyl)methyl-N-methyl glycinate.Type: GrantFiled: August 1, 1997Date of Patent: December 1, 1998Assignee: Air Products and Chemicals, Inc.Inventors: Robert Gabriel Petrella, John Joseph Koch, Thomas William Bodnar
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Patent number: 5840779Abstract: The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which result in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, surfactant, and at least one catalyst for polymerization of the polyisocyanate and polyol wherein the catalyst is less volatile than N,N-dimethylcyclohexylamine or the catalyst is a tertiary amine having at least one isocyanate-reactive functionality selected from the group consisting of --OH and --NH-- and the catalyst results in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during polymerization of the polyisocyanate and the polyol and especially during use of the foam samples at a temperature of at least about 54.degree. C.Type: GrantFiled: June 7, 1995Date of Patent: November 24, 1998Assignee: AlliedSignal Inc.Inventors: Robert Christian Parker, Timothy Rech Demmin
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Patent number: 5770635Abstract: A polyol composition is provided which when reacted with an organic isocyanate, has good flow characteristics and makes a rigid polyurethane foam having good dimensional stability at low densities. The polyol composition has a polyol component which must have present a polyoxyalkylene polyether polyol having an equivalent weight of 130 or less and a hydroxyl number of 400 or more, a polyoxyalkylene polyether polyol having an average functionality from 1.5 to 3.1 and a viscosity of less than 800 cP at 25.degree. C., and a polyoxyalkylene polyether polyol having an average functionality of greater than 3.1 and a viscosity of 5,000 cp or less at 25.degree. C. The polyol composition also has formic acid or a mixture of formic acid and water as blowing agents, and further contains a delayed action blow catalyst and a delayed action gel catalyst.Type: GrantFiled: December 15, 1995Date of Patent: June 23, 1998Assignee: BASF CorporationInventors: Thomas B. Lee, Thomas L. Fishback, Curtis J. Reichel
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Patent number: 5756558Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition comprising a compound having the following formula I: ##STR1## where R.sup.1 is hydrogen or a linear or branched C1-C4 alkyl or a C1-C4 hydroxyalkyl group;R.sup.2 and R.sup.3 independently are hydrogen, hydroxy, a linear or branched C1-C4 alkyl or a linear or branched C1-C4 hydroxyalkyl group; andR.sup.4 is a linear or branched C1-C10 hydroxyalkyl group.Type: GrantFiled: July 3, 1996Date of Patent: May 26, 1998Assignee: Air Products and Chemicals, Inc.Inventors: Ann Coates Lescher Savoca, Richard Paul Underwood, Richard Van Court Carr, James Stephen Emerick
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Patent number: 5731398Abstract: A black colorant composition useful for coloring polyurethanes is provided having a red benzothiazole azo colorant which, when combined with a complementary blue and yellow colorant, exhibits low flairing.Type: GrantFiled: May 31, 1996Date of Patent: March 24, 1998Assignee: Milliken Research CorporationInventors: Mark Edward Ragsdale, David Jesse Moody, Eric B. Stephens
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Patent number: 5688834Abstract: The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which result in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, surfactant, and at least one catalyst for polymerization of the polyisocyanate and polyol wherein the catalyst is less volatile than N,N-dimethylcyclohexylamine or the catalyst is a tertiary amine having at least one isocyanate-reactive functionality selected from the group consisting of --OH and --NH-- and the catalyst results in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during polymerization of the polyisocyanate and the polyol and especially during use of the foam samples at a temperature of at least about 54.degree. C.Type: GrantFiled: October 15, 1991Date of Patent: November 18, 1997Assignee: AlliedSignal, Inc.Inventors: Robert Christian Parker, Timothy Rech Demmin
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Patent number: 5674918Abstract: Polyurethane, polyisocyanurate and polyurea polymers, particularly foamed polymers can be prepared from formulations including non-silicone polyether surfactants. The non-silicone polyether surfactants can be polyethers having from about 10 to about 90 weight percent oxyethylene units and from about 10 to about 90 weight percent oxyalkylene units having at least 4 carbons. The non-silicone polyether surfactants can be used to prepare foams having properties substantially similar to foams prepared with conventional silicone based surfactants.Type: GrantFiled: August 22, 1996Date of Patent: October 7, 1997Assignee: The Dow Chemical CompanyInventors: Debkumar Bhattacharjee, Jerram B. Nichols, Warren A. Kaplan, Vaughn M. Nace
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Patent number: 5616625Abstract: A process for foaming polyurethane reactive hot melt adhesive comprising the steps of:a) melting a reactive polyurethane adhesive containing 0.05 to 0.5% by weight of a 2,2'dimorpholinodiethyl ether or di(2,6-dimethylmorpholinodiethyl)ether catalyst in a heated reservoirb) pumping the adhesive from the heated into a heated reservoir recirculating foaming device;c) foaming the adhesive by injecting therein an effective amount of an anhydrous gas;d) discharging a portion of the foamed adhesive through an orifice onto a substrate to be bonded; ande) recirculating the remaining foamed adhesive back to the foaming device for discharge at a later time.Type: GrantFiled: February 17, 1995Date of Patent: April 1, 1997Assignee: National Starch and Chemical Investment Holding CorporationInventors: Ju-Ming Hung, James W. Nowicki
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Patent number: 5600019Abstract: Polyurethane, polyisocyanurate and polyurea polymers, particularly foamed polymers can be prepared from formulations including non-silicone polyether surfactants. The non-silicone polyether surfactants can be polyethers having from about 10 to about 90 weight percent oxyethylene units and from about 10 to about 90 weight percent oxyalkylene units having at least 4 carbons. The non-silicone polyether surfactants can be used to prepare foams having properties substantially similar to foams prepared with conventional silicone based surfactants.Type: GrantFiled: November 23, 1994Date of Patent: February 4, 1997Assignee: The Dow Chemical CompanyInventors: Debkumar Bhattacharjee, Jerram B. Nichols, Warren A. Kaplan, Vaughn M. Nace
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Patent number: 5561171Abstract: The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which are capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, surfactant, and catalyst for polymerization of the polyisocyanate and polyol wherein the catalyst is capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during polymerization of the polyisocyanate and the polyol.Type: GrantFiled: November 23, 1994Date of Patent: October 1, 1996Assignee: AlliedSignal, Inc.Inventors: Timothy R. Demmin, Robert C. Parker, Richard E. Eibeck, Gary M. Knopeck, Donna M. Ruszaj
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Patent number: 5539007Abstract: A method for catalyzing the blowing reaction and making polyurethane foams employing a catalyst composition consisting essentially of a hydroxy-functional imidazole of the following formula I ##STR1## where R.sup.1 is a C.sub.1 -C.sub.10 alkyl; R.sup.2 is hydrogen, methyl or ethyl and R.sup.3 is hydrogen or a C.sub.1 -C.sub.20 organic group optionally having an ether functionality, provided that when R.sup.1 is methyl, R.sup.2 and R.sup.3 are not both hydrogen or a hydrogen and a methyl, in combination with a boron compound of the formulaR.sub.n B(OH).sub.3-nwhere n=0 or 1, and R=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl, or C.sub.6 -C.sub.10 aryl.Type: GrantFiled: June 7, 1995Date of Patent: July 23, 1996Assignee: Air Products and Chemicals, Inc.Inventors: Mark L. Listemann, Lisa A. Mercando, Ann C. L. Savoca
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Patent number: 5523332Abstract: There is now provided a polyisocyanate-based foam made by reacting an organic polyisocyanate with a polyol solution containing a C.sub.4 -C.sub.7 aliphatic and/or cycloaliphatic hydrocarbon as a blowing agent. The hydrocarbon blowing agent is soluble in the polyol solution having polyols with polyester linkages by using a reacted or unreacted compatibilizing agent represented by the formula: ##STR1## wherein R.sup.1 is preferentially OH, and R.sup.2 is a C.sub.6 -C.sub.24 aliphatic, branched or unbranched, hydrocarbon group.Type: GrantFiled: September 5, 1995Date of Patent: June 4, 1996Assignee: Basf CorporationInventors: Thomas L. Fishback, Thomas B. Lee
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Patent number: 5508314Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition consisting essentially of at least one of the permethylated mono- and dialkylene oxide adducts of tris(2-aminoethyl)amine of structures I, II and III, or any combination thereof ##STR1## wherein R is hydrogen, a C.sub.1 -C.sub.4 alkyl, C.sub.6 -C.sub.8 aryl, or C.sub.7 -C.sub.9 aralkyl group.Type: GrantFiled: February 18, 1994Date of Patent: April 16, 1996Assignee: Air Products and Chemicals, Inc.Inventors: Mark L. Listemann, Kevin R. Lassila, Kristen E. Minnich, Ann C. L. Savoca
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Patent number: 5504125Abstract: There is now provided a polyisocyanate-based foam made by reacting an organic polyisocyanate with a polyol solution containing a C.sub.4 -C.sub.7 aliphatic and/or cycloaliphatic hydrocarbon as a blowing agent. The hydrocarbon blowing agent is soluble in the polyol solution having polyols with polyester linkages by using a reacted or unreacted compatibilizing agent represented by the formula: ##STR1## wherein R.sup.1 is preferentially OH, and R.sup.2 is a C.sub.6 -C.sub.24 aliphatic, branched or unbranched, hydrocarbon group.Type: GrantFiled: September 5, 1995Date of Patent: April 2, 1996Assignee: BASF CorporationInventors: Thomas L. Fishback, Thomas B. Lee
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Patent number: 5478494Abstract: A polyol composition is provided which when reacted with an organic isocyanate, has good flow characteristics and makes a rigid polyurethane foam having good dimensional stability at low densities. The polyol compostion has a polyol component which must have present a polyoxyalkylene polyether polyol having an equivalent weight of 130 or less and a hydroxyl number of 400 or more, a polyoxyalkylene polyether polyol having an average functionality from 1.5 to 3.1 and a viscosity of less than 800 cP at 25.degree. C., and a polyoxyalkylene polyether polyol having an average functionality of greater than 3.1 and a viscosity of 5,000 cp or less at 25.degree. C. The polyol composition also has formic acid or a mixture of formic acid and water as blowing agents, and further contains a delayed action blow catalyst and a delayed action gel catalyst.Type: GrantFiled: September 22, 1993Date of Patent: December 26, 1995Assignee: BASF CorporationInventors: Thomas B. Lee, Thomas L. Fishback, Curtis J. Reichel, Donald L. Christman
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Patent number: 5470501Abstract: There is now provided a polyisocyanate-based foam made by an organic polyisocyanate with a polyol solution containing a C.sub.4 -C.sub.7 aliphatic and/or cycloaliphatic hydrocarbon as a blowing agent. The hydrocarbon blowing agent is soluble in the polyol solution having polyols with polyester linkages by using a reacted or unreacted compatibilizing agent represented by the formula: ##STR1## wherein R.sup.1 is preferentially OH, and R.sup.2 is a C.sub.6 -C.sub.24 aliphatic, branched or unbranched, hydrocarbon group.Type: GrantFiled: May 8, 1995Date of Patent: November 28, 1995Assignee: BASF CorporationInventors: Thomas L. Fishback, Thomas B. Lee
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Patent number: 5459221Abstract: The invention provides a liquid polyisocyanate prepolymer composition which is a result of combining about 50 to 90 percent by weight of an isocyanate blend (a.) having 55 to 75 weight percent 4,4'-MDI, 17 to 27 weight percent 2,4'-MDI, 1 to 10 weight percent 3-ring MDI oligomer, and 1 to 15 weight percent n-ring MDI oligomer (n greater than 3); about 5 to 30 weight percent of a polyhydroxy containing polyol (b.) having a molecular weight of from 700 to about 6,000, and about 5 to 15 weight percent of a toluene diisocyanate (c.). The resulting isocyanate prepolymer composition has a free NCO content of from about 20 to 40 weight percent and particularly desirable flow characteristics. The invention further provides a method of making an isocyanate prepolymer composition, a process of making a polyurethane foam utilizing the isocyanate prepolymer composition of the invention, and polyurethane foams produced by the disclosed process.Type: GrantFiled: April 10, 1995Date of Patent: October 17, 1995Assignee: BASF CorporationInventors: Thirumurti Narayan, David J. Lovell, Carlos H. Lopez
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Patent number: 5457137Abstract: A novel isocyanate reactive mixture is described which allows for the preparation of energy absorbing foams which meet Chrysler specification DC-640. The reactive mixture contains a) a filled polyol, b) a propylene oxide adduct of a mono-, di-, or trialkanolamine and c) a polyoxyalkylene polyamine. Foams prepared from the reactive mixture are also described.Type: GrantFiled: February 17, 1995Date of Patent: October 10, 1995Assignee: Bayer CorporationInventors: Charles M. Milliren, Ronald Zibert
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Patent number: 5455283Abstract: There is now provided a closed cell rigid polyisocyanate based foam blowing with a C.sub.1 -C.sub.4 hydrofluorocarbon and water as blowing agents, which possesses a uniform density gradient varying by not more than 10 percent. There is also now provided a froth foaming mixture having good flow by employing a hydroxy terminated polyol which is pH neutral and a tertiary amine ether blow catalyst in an amount of 0.5 weight percent or more, using water and a C.sub.1 -C.sub.4 hydrofluorocarbon having a boiling point of 300.degree. K. or less as co-blowing agents.There is also provided a polyol composition having an average OH number of less than 400 and an average functionality of greater than 4, which when reacted with the isocyanate in the presence of a C.sub.1 -C.sub.4 hydrofluorocarbon, yields a rigid closed cell polyisocyanate based dimensionally stable foam.Type: GrantFiled: April 11, 1995Date of Patent: October 3, 1995Assignee: BASF CorporationInventors: Todd J. Green, John R. Tucker
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Patent number: 5308882Abstract: This invention is a molded flexible polyurethane foam containing acid-modified polyoxypropyleneamine comprising a polyol, a polyisocyanate, water, and a crosslinker/catalyst of the formulae: ##STR1## where R' is an alkylene radical having from about 2 to 4 carbon atoms, R" is H or OH and R is H or from about 1 to 6 carbon atoms wherein said compound is present in an amount ranging from about 0.05 to 2.00 weight percent based on the combined weight of the polyol and polyisocyanate and wherein the sole blowing agent is CO.sub.2 resulting from the reaction of the water and the isocyanate or wherein auxiliary blowing agents may also be included and are selected from the group consisting of halogenated low-boiling hydrocarbons (e.g. trichloromono-fluoromethane and dichloromethane), carbon dioxide, and nitrogen or mixtures thereof.Type: GrantFiled: September 7, 1993Date of Patent: May 3, 1994Assignee: Texaco Chemical CompanyInventor: Debra A. Washington
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Patent number: 5269969Abstract: The present invention relates to a stabilized composition containing a polyol/melamine and an effective stabilizing amount of an amine terminated polyether.Type: GrantFiled: June 14, 1993Date of Patent: December 14, 1993Assignee: Miles Inc.Inventors: Edmund J. Madaj, Josef Sanders, Robson Mafoti
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Patent number: 5242953Abstract: The present invention relates to a stabilized composition containing a polyol/melamine and an effective stabilizing amount of an amine terminated polyether.Type: GrantFiled: October 17, 1991Date of Patent: September 7, 1993Assignee: Miles Inc.Inventors: Edmund J. Madaj, Josef Sanders, Robson Mafoti
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Patent number: 5216040Abstract: A rigid polyurethane foam obtained by foaming a special polyol component and an isocyanate component in the presence of a blowing agent comprising water and at least one member selected from the group consisting of 1,1-dichloro-2,2,2-trifluoroethane and 2,2-dichloro-2-monofluoroethane possesses balanced excellent properties, has no surface void, and shows only slight expansion after molding. Therefore, it can be effectively used as a heat insulator, in particular, a heat insulator for refrigerators.Type: GrantFiled: November 21, 1990Date of Patent: June 1, 1993Assignee: Hitachi, Ltd.Inventors: Kazuyoshi Kuroishi, Reishi Naka, Isao Kobayashi, Kousuke Tanaka, Katuhiko Gotoo
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Patent number: 5208268Abstract: The present invention is directed to a novel internal release agent, a mixture of isocyanate reactive materials containing the release agent and a RIM process using the release agent. The novel release agent is the reaction product of i) an ester prepared by reacting a specific tetrol with a mixture of saturated and unsaturated acids, and ii) a neutralizing agent.Type: GrantFiled: September 25, 1992Date of Patent: May 4, 1993Assignee: Miles Inc.Inventor: Robson Mafoti
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Patent number: 5195946Abstract: The invention is directed to a stable catalytic and aqua-activated polyurethane bandage used for orthopedic casting. The bandage has a substrate and an aqua-activated polyurethane prepolymer. The catalyst used to make the prepolymer is .alpha.-(morpholinopolyethoxy)-.beta.-morpholinoethane or the mixture of .alpha.-(morpholinopolyethoxy)-.beta.-morpholinoethane and cocatalyst bis-(2-dimethylaminoethyl) ether. The catalyst in this bandage can be optionally combined with a stabilizing agent, such as ethane-sulfonic acid to form a structurally stable complex. The catalyst of this invention provides an excellent solidification time and significantly prolongs the storage period of the bandage.Type: GrantFiled: September 12, 1991Date of Patent: March 23, 1993Assignees: Zhejiang Province Science & Technology Development Corp., Huangyan Medical Treatment Material FactoryInventors: Hai-sheng Li, Jia-ju Fan
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Patent number: 5183830Abstract: A method for the preparation of highly elastic foams of reduced compression hardness and having urethane groups is disclosed, in which the reaction of the polyurethane-forming materials is carried in the presence of 0.01 to 5% by weight, based on the polyol, of a compound, which has at least one polyoxyalkylene group and at least one anionic group in the molecule. The use of fluorocarbons to decrease the compression hardness can reduced appreciably by the use of this compound.Type: GrantFiled: April 15, 1991Date of Patent: February 2, 1993Assignee: Th. Goldschmidt AGInventors: Volker Mohring, Volker Zellmer
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Patent number: 5173516Abstract: A high water, high resiliency polyurethane foam composition comprising polyisocyanate, conventional polyol, polymer polyol, diethanolamine, silicone surfactant, water and catalyst, the improvement which comprises a cycloaliphatic diamine of the following formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are independently hydrogen or a C.sub.1 -C.sub.4 alkyl group, and a catalyst composition consisting essentially of 0.05 to 0.3 parts gel catalyst and 0.075 to 0.5 parts acid-blocked blowing catalyst, per 100 parts polyol.Type: GrantFiled: March 26, 1990Date of Patent: December 22, 1992Assignee: Air Products and Chemicals, Inc.Inventor: Menas S. Vratsanos
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Patent number: 5166115Abstract: Novel polyurethane-urea foams having superior tear and tensile strengths, elongation and load-bearing are prepared by reacting an alkylthio-substituted aromatic diamine in a mixture of polyols with an aromatic diisocyanate or aromatic diisocyanate prepolymer or mixtures thereof, having free NCO content of 0.1-50% by weight. These foams have good dynamic properties that make them attractive as cushioning materials.Type: GrantFiled: February 3, 1992Date of Patent: November 24, 1992Inventor: William R. Brown
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Patent number: 5162384Abstract: A blowing agent emulsion comprising at least one low boiling, perfluorinated, N-aliphatic, cyclic 1,3-, or 1,4-aminoether blowing agent, a foamable polymerizable reaction mixture, and a fluorochemical surfactant, optionally, a silicone surfactant, and optionally, a catalyst; a foamed plastic, and a process for making thereof.Type: GrantFiled: September 13, 1991Date of Patent: November 10, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: John G. Owens, Koen Focquet, Richard M. Flynn, Rudolf J. Danis
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Patent number: 5156762Abstract: Polyether polyols and polyurethane foams are stabilized by including therein a liquid stabilizer composition of (a) 2,6-di-tert-butyl-4-sec-butylphenol, (b) a reaction product of diisobutylene, styrene and diphenylamine and (c) phenothiazine or C.sub.9-26 -alkyl substituted phenothiazone and wherein the ratio of the phenol to the reaction product is about 1:5 to 5:1 and the ratio of the mixture of components (a) and (b) to the phenothiazone compound is about 5.0:0.1 to 4.0:1.0. The stabilizer composition may further contain trihydrocarbyl phosphite to stabilize the color of same.Type: GrantFiled: April 13, 1992Date of Patent: October 20, 1992Assignee: R. T. Vanderbilt Company, Inc.Inventors: Richard A. Suhoza, Bruce R. Garney, Robert B. Lauder
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Patent number: 5153232Abstract: A polyurea elastomer foam is disclosed. Specifically, the polyurea foam of this invention includes an (A) component including an isocyanate and a (B) component including (1) a primary amine terminated polyoxyalkylene polyol, (2) a chain extender, (3) water employed as the sole blowing agent and (4) a surfactant employed as a foam stabilizer. The polyurea foam of this invention is characterized as a rigid, closed cell foam.Type: GrantFiled: February 8, 1991Date of Patent: October 6, 1992Assignee: Texaco Inc.Inventor: Dudley J. Primeaux, II
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Patent number: 5145880Abstract: A reactive composition, rapidly polymerizable already starting from room temperature, comprises a liquid mixture consituted by at least one organic polyisocyanate, at least one compound containing one or more epoxy groups and a liquid catalyst constituted by, or containing, at least one compound falling within the scope of the general formula ##STR1## in which the substituents have the meanings reported in the following; the compound which contains the epoxy group(s) can be constituted by the catalyst only.Such a composition can turn into a polymeric material having softening temperatures as high as 300.degree. C. and even higher.Type: GrantFiled: April 12, 1991Date of Patent: September 8, 1992Assignee: Enichem S.p.A.Inventors: Fabrizio Parodi, Carlo Belgiovine
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Patent number: 5143943Abstract: Polyether polyols and polyurethane foams are stabilized by including therein a liquid stabilizer composition of (a) 2,6-di-tert-butyl-4-sec-butylphenol, (b) a reaction product of diisobutylene, styrene and diphenylamine and (c) phenothiazine or C.sub.9-26 -alkyl substituted phenothiazine and wherein the ratio of the phenol to the reaction product is about 1:5 to 5:1 and the ratio of the mixture of components (a) and (b) to the phenothiazine compound is about 5.0:0.1 to 4.0:1.0. The stabilizer composition may further contain trihydrocarbyl phosphite to stabilize the color of same.Type: GrantFiled: February 18, 1992Date of Patent: September 1, 1992Assignee: R. T. Vanderbilt Company, Inc.Inventors: Richard A. Suhoza, Bruce R. Garney, Robert B. Lauder
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Patent number: 5143942Abstract: Novel polyurethane-urea foams having superior tear and tensile strengths, elongation and load-bearing are prepared by reacting an alkylthio-substituted aromatic diamine in a mixture of polyols with an aromatic diisocyanate or aromatic diisocyanate prepolymer or mixtures thereof, having free NCO content of 0.1-50% by weight. These foams have good dynamic properties that make them attractive as cushioning materials.Type: GrantFiled: October 28, 1991Date of Patent: September 1, 1992Assignee: Ethyl CorporationInventor: William R. Brown
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Patent number: 5132332Abstract: A method for preparing hard polyurethane and polyisocyanurate foams wherein an isocyanate and an active hydrogen containing compound are made to react in the presence of a catalyst, a foam stabilizer and a blowing agent which contains chloropropane, the used foam stabilizer being mainly of the non silicon type.Type: GrantFiled: March 2, 1990Date of Patent: July 21, 1992Assignee: RecticelInventors: Bart Wallaeys, Eddie DuPrez