Nitrogen Reactant Contains A N-(c-c-o)-group Patents (Class 521/167)
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Patent number: 7658974Abstract: There is provided a two-pack composition for making urethane-containing structures, said composition comprising (a) a first pack comprising at least one reaction product of at least one polyisocyanate and at least one polyol, wherein said first pack has %NCO of 6% or greater, and (b) a second pack comprising at least one polyol and at least one amine catalyst, wherein the reactive mixture formed by admixing said first pack and said second pack is capable of curing in the absence of water; and wherein said reactive mixture comprises less than 3% solvent by weight based on the weight of said reactive mixture. Also provided are methods of making such urethane-containing structures, and the urethane structures made thereby.Type: GrantFiled: April 25, 2005Date of Patent: February 9, 2010Assignee: Rohm and Haas CompanyInventor: Sebastiano Failla
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Patent number: 7635723Abstract: A method for producing a rigid, closed-cell polyurethane foam having a free-rise density of from about 1.3 lbs/ft.3 to about 4 lbs/ft.3 and exhibiting a shrinkage of less than 10%, comprises mixing together an isocyanate, at least one alkyl alkanoate blowing agent and at least one polyol having a hydroxyl number of from about 150 to about 800 and being selected from the group consisting of polyalkoxylated amines, polyalkoxylated ethers, and polyester polyols, to form a reaction mixture that is curable to produce such foam.Type: GrantFiled: December 18, 2002Date of Patent: December 22, 2009Assignee: Foam Supplies, Inc.Inventors: Timothy T. Kalinowski, David G. Keske, Victor Matimba, David L. Modray, Mark Schulte
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Patent number: 7626073Abstract: The present invention relates to absorbent articles which include one or more components that have been treated with a hydrophobic surface coating intended to render such components impermeable to liquids having relatively low surface tensions.Type: GrantFiled: February 10, 2005Date of Patent: December 1, 2009Assignee: The Procter & Gamble Co.Inventor: Kemal Vatansever Catalan
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Patent number: 7423112Abstract: The present invention relates to novel polyether polyols containing pendant amine group and to a process for their preparation. These polyether polyols have molecular weights of from about 105 to about 35,000, and contain at least one terminal hydroxyl group and at least one pendant amine group. The process for their preparation comprises reacting a compound containing from 1 to 10 hydroxyl groups and a molecular weight of about 32 to about 15,000 with at least one epoxide which contains one or more halogen atoms, in the presence of one or more DMC catalysts, to form an intermediate polyether polyol which contains halogenated carbon atoms; then reacting this intermediate polyether polyol with an amine group containing compound having from 1 to 3 primary, secondary and/or tertiary amine groups.Type: GrantFiled: May 27, 2004Date of Patent: September 9, 2008Assignee: Bayer MaterialScience LLCInventor: Rick L. Adkins
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Patent number: 7414080Abstract: The polishing pad is suitable for planarizing at least one of semiconductor, optical and magnetic substrates. The polishing pad includes a cast polyurethane polymeric material formed with an isocyanate-terminated reaction product formed from a prepolymer reaction of a prepolymer polyol and a polyfunctional isocyanate. The isocyanate-terminated section product has 4.5 to 8.7 weight percent unreacted NCO; and the isocyanate-terminated reaction product is cured with a curative agent selected from the group comprising curative polyamines, curative polyols, curative alcoholamines and mixtures thereof. The polishing pad contains at least 0.1 volume percent filler or porosity.Type: GrantFiled: January 13, 2005Date of Patent: August 19, 2008Assignee: Materials CMP Holdings, Inc.Inventor: Mary Jo Kulp
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Patent number: 7361695Abstract: The present invention is to the production of flexible polyurethane foam in the absence of an amine catalyst. The reactivity of the foam forming system can be controlled by the addition of an autocatalytic polyol containing a tertiary amine where the amount of autocatalytic polyol comprises less than 5 percent by weight of the total polyol.Type: GrantFiled: August 15, 2002Date of Patent: April 22, 2008Assignee: Dow Global Technologies Inc.Inventors: Johnson Tu, Lance A. Cooper, Francois M. Casati, Jean-Marie L. Sooney
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Patent number: 7300961Abstract: The present invention relates to polyol compositions which can be used to produce dimensionally stable, low density water-blown rigid foams which have acceptable compressive strengths and acceptable k-factors. In one embodiment of the present invention, the polyol compositions are composed of at least one aromatic amine-initiated polyether polyol and at least one polyether polyol having a functionality greater than or equal to 2.5 in which at least 50% by weight of the polyol composition is aromatic amine-initiated polyether polyol and in which no more than 50% by weight of the polyol composition is polyether polyol having a functionality greater than or equal to 2.5.Type: GrantFiled: June 24, 2002Date of Patent: November 27, 2007Assignee: Bayer MaterialScience LLCInventors: Karl W. Haider, David D. Steppan, Michael E. McGregor, Kerry A. Ingold, Vincent M. Mautino, Michael A. Dobransky
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Patent number: 7238730Abstract: The subject invention provides a viscoelastic polyurethane foam being flame retardant and having a density of greater than two and a half pounds per cubic foot that comprises a reaction product of an isocyanate component, an isocyanate-reactive blend, and a chain extender. The isocyanate-reactive blend includes a first isocyanate-reactive component and a second isocyanate-reactive component. The first isocyanate-reactive component includes at least 60 parts by weight of ethylene oxide (EO) based on 100 parts by weight of the first isocyanate-reactive component and the second isocyanate-reactive component includes at most 30 parts by weight of EO based on 100 parts by weight of the second isocyanate-reactive component. The chain extender is reactive with the isocyanate component and has a backbone chain with from two to eight carbon atoms and is present in an amount of from 5 to 50 parts by weight based on 100 parts by weight of the foam.Type: GrantFiled: June 26, 2003Date of Patent: July 3, 2007Assignee: BASF CorporationInventors: Wassana Apichatachutapan, Raymond Neff, James Mullins, Theodore M. Smiecinski, Thomas B. Lee
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Patent number: 7223801Abstract: A composition and method for protecting pipeline joints is disclosed. A mold covers the exposed pipeline joint. A reaction composition including a polyol, an isocyanate, and an ester, preferably 2,2,4-trimethyl-1,2-pentanediol diisobutyrate, is added to the mold and allowed to react to form a polymer.Type: GrantFiled: March 5, 2004Date of Patent: May 29, 2007Assignee: Baysystems North America LLCInventor: Scott A Brown
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Patent number: 7160930Abstract: A composition and a method for producing primarily water blown polyurethane foams is provided. The composition uses isocyanate ratios greater than conventional foam system to provide a water blown polyurethane foam suitable for a wide variety of applications including spray roofing, insulation, etc. The preferred composition for preparing a polyurethane foam comprises an isocyanate component and a polyol component, wherein the polyol component preferably comprises a combination of Mannich polyol, polyester polyol, and polyether polyol. Preferably, the composition includes water to act as a blowing agent and a metal salt catalyst to assist in the reaction. Preferably, the isocyanate index is between about 1.2 and about 2.0. Additional catalysts, surfactants, flame retardants, and blowing agents may also be used depending upon the desired finished product.Type: GrantFiled: July 14, 2004Date of Patent: January 9, 2007Assignee: Baysystems North America LLCInventors: Thomas A. Sparks, Philip D. Harkins, Ray J. Anderson
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Patent number: 7141613Abstract: The invention relates to flame resistant rigid foams and formulations useful for the production thereof. The polyol formulation must include at least one substance which is inert with respect to isocyanates, does not deplete the ozone layer and has a boiling point below 55° C. and a reaction product of at least one compound with an aromatic ring, at least one aldehyde or ketone and at least one primary or secondary amine. This polyol formulation is reacted with an isocyanate, optionally with other commonly used additives, to produce rigid flame resistant foams.Type: GrantFiled: March 10, 2003Date of Patent: November 28, 2006Assignee: Bayer AktiengesellschaftInventors: Rolf Albach, Michael Brockelt, Juan Cirujeda-Ranzenberger
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Patent number: 7078443Abstract: A viscoelastic foam is provided having an amine-based polyol system to impart strength, recoverability and endurance to the foam, and an appropriately selected trifunctional non-amine-based polyol system to provide flexibility to the foam. The combination of amine-based and non amine-based polyols provides a viscoelastic semi-rigid foam with excellent impact and recovery properties, recovering to substantially 100% of its initial volume and shape following an impact, yet with high rigidity and stiffness so that it is effective at absorbing high as well as low-energy impacts. A method of making the above viscoelastic foam is also provided. In a preferred embodiment, the foam is made using an allophanate-modified MDI prepolymer in order to provide the isocyanate in liquid form at standard temperature and pressure in order to simplify the production of the invented viscoelastic foams.Type: GrantFiled: October 22, 2003Date of Patent: July 18, 2006Assignee: Intellectual Property Holdings, LLCInventor: Charles M. Milliren
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Patent number: 7078442Abstract: A composition and method for consolidating aggregate material is disclosed. The method includes introducing a reaction composition into the aggregate material and allowing it to reach on form a polymer which binds the aggregate together. The composition includes polyol, isocyanate, and ester.Type: GrantFiled: March 5, 2004Date of Patent: July 18, 2006Assignee: Baysystems North America LLCInventor: Scott A Brown
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Patent number: 7066724Abstract: An apparatus is disclosed for flatproofing a tire and wheel assembly with a flexible, lightweight foam-fill by supplying at least two polyurethane reactive materials to a static mixer. The static mixer mixes the reactants, and a nucleating gas is supplied to the mixed reactants in the static mixer to form a liquid reactant mixture with entrained gas. The reactant mixture is injected into the tire and wheel assembly where the mixture reacts and foams replacing the air in the tire with a flexible, lightweight semi-open cell foam-fill. The foam-filled tire and wheel assembly is then allowed to cure.Type: GrantFiled: October 16, 2003Date of Patent: June 27, 2006Assignee: Urethane International LLCInventors: John Danules, Steve Anderson, Van Doesburg
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Patent number: 7056958Abstract: Black polyurethane foams that exhibit higher strength black colorations without the need for concomitant increases in black colorants therein are provided. Such a resultant jetter black foam article is possible through the unexpectedly effective introduction of small amounts of certain toner compounds or combinations that exhibit specific measurable appearance characteristics. Such toners exhibit at least one absorption peak within a specific range of wavelengths (e.g., from about 560 to 610 nm) and specific ranges of half-height bandwidths (from 40 to 130 nm). Furthermore, such a compound or combination of compounds, is preferably liquid in nature (at room temperature) or in dispersion form and may thus be easily incorporated within target polyurethane precursor compositions for admixture with either black pigments (or dispersions thereof), black polymeric (liquid) colorants, or both.Type: GrantFiled: March 27, 2003Date of Patent: June 6, 2006Assignee: Milliken & CompanyInventors: Jusong Xia, Rajnish Batlaw
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Patent number: 7008974Abstract: Disclosed is a composition for preparing a rigid polyurethane foam having a good demolding property by defining polyol component and catalyst component. The polyol component comprises 40˜60 wt. % of polyol obtained by polymerization with an organic oxide using sorbitol as an initiator, 5˜10 wt. % of polyol obtained by polymerization with an organic oxide using ethylene diamine as an initiator, 20˜30 wt. % of polyol obtained by polymerization with an organic oxide using toluene diamine or toluene diamine and triethanol amine as a single or a complex initiator, and, optionally, 5˜20 wt. % of multivalent polyol of an ester structure, and the catalyst component is chosen in a group comprising a foaming catalyst, a gelling catalyst, a trimerization catalyst, a mixed form of the foaming catalyst and the gelling catalyst, and compound thereof.Type: GrantFiled: September 27, 2002Date of Patent: March 7, 2006Assignee: LG Electronics Inc.Inventors: Hyun-Keun Cho, Ju-Hyun Kim
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Patent number: 6949589Abstract: An elastic foamed grinder material of polyurea series for grinding and/or buffing, which is obtainable by subjecting a composition including a main ingredient component including a polyisocyanate, and a composition comprising an aromatic diamine, a foaming agent, a foam-adjusting agent and a curing catalyst to foaming and curing in the presence of grinder granules, wherein the aromatic diamine is an aromatic diamine oligomer alone or in mixture with an aromatic diamine compound, and a method for producing the grinder material.Type: GrantFiled: March 13, 2002Date of Patent: September 27, 2005Inventor: Yoshijiro Oyaizu
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Patent number: 6924321Abstract: The present invention discloses a process for producing a polyurethane product with autocatalytic polyols. These autocatalytic polyols are based on an initiator that contains a tertiary amine. These autocatalytic polyols are reacted with a polyisocyanate in the presence of other additives and/or auxiliary agents known per se to produce polyurethane products.Type: GrantFiled: August 16, 2001Date of Patent: August 2, 2005Assignee: Dow Global Technologies Inc.Inventors: Francois Casati, Jean-Marie Louis Sonney
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Patent number: 6890966Abstract: In a process for the production of a lightweight cold urethane wherein raw materials are injected into a mold in one shot, diethanolamine is added in an amount of 0.1 to 2.0 parts by weight per 100 parts by weight of the polyol. When principal raw materials including a polyol and an isocyanate, and an auxiliary ingredient mixture prepared by previously mixing auxiliary ingredients other than the polyol and the isocyanate, are injected into a mold from separate storage vessels, a water-soluble silicone foam stabilizer is added to the auxiliary ingredient mixture.Type: GrantFiled: May 10, 2002Date of Patent: May 10, 2005Assignee: Suzuki Motor CorporationInventors: Masahiko Ando, Eiji Matsumoto
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Patent number: 6861454Abstract: Raw materials for anti-cracking polyurethane foams comprises: a mixed polyol 100 weight parts; an isocyanate 140˜180 weight parts; a catalyst 1.0˜3.0 weight parts; water 1˜2.5 weight parts; a foam blowing agent 30.0˜35.0 weight parts; and an additive 1.0˜3.0 weight parts, and a preparation method thereof.Type: GrantFiled: August 12, 2002Date of Patent: March 1, 2005Assignee: LG Electronics Inc.Inventor: Ju-Hyun Kim
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Patent number: 6831110Abstract: Rigid foams are made by reacting a polyisocyanate with an isocyanate-reactive composition which includes at least one isocyanate-reactive compound, preferably, an amine-initiated polyol and more preferably, an amine-initiated polyether polyol and a second, different polyol in the presence of a blowing agent composition which includes water and a catalyst composition which includes two different blowing catalysts, preferably, pentamethyldiethylenetriamine and bis(2-dimethylamino-ethyl)ether.Type: GrantFiled: April 1, 2003Date of Patent: December 14, 2004Assignee: Bayer Polymers LLCInventors: Kerry A. Ingold, Raymond A. Yourd
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Patent number: 6818675Abstract: A process for preparing a polyurethane foam is provided which comprises reacting a polyisocyanate and an active hydrogen-containing component, including water and an organic polyol, in the presence of a catalytically effective amount of a delayed action amine catalyst system, and optionally an organotin catalyst. The delayed action catalyst is composed of the reaction product of (a) one or more carboxylic acids having hydroxy and/or halo functionality; (b) one or more tertiary amine ureas; and, optionally, (c) a reactant selected from the group consisting of specific reactive tertiary amine(s), specific tertiary amine carbamate(s) and mixture thereof.Type: GrantFiled: August 6, 2002Date of Patent: November 16, 2004Assignee: General Electric CompanyInventors: Hassan El Ghobary, Louis Muller
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Patent number: 6762214Abstract: The present invention relates to a process for the preparation of rigid foams comprising reacting a polyisocyanate component with an isocyanate-reactive component in the present of a blowing agent. Suitable isocyanate-reactive components for the presently claimed invention comprises polyether polyols having an OH number of from 200 to 800 and containing from 3 to 8 hydroxyl groups wherein the level of alkalinity present in the polyether polyol is equivalent to a hydroxide ion level of from about 0.006% to about 0.21% by weight.Type: GrantFiled: March 18, 2003Date of Patent: July 13, 2004Assignee: Bayer Polymers LLCInventors: Jerry E. Tracy, Scott A. Kane, Robert P. Yeater, Karl W. Haider
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Patent number: 6762274Abstract: The present invention discloses a process for producing a polyurethane product with autocatalytic polyols. These auto-catalytic polyols are based on an initiator of the formula (I): HmA-(CH2)n—N(R)-(CH2)p-AHm where n and p are independently integers from 2 to 6, A at each occurrence is independently oxygen, nitrogen or hydrogen, with the proviso that only one of A can be hydrogen at one time, R is a C1 to C3 alkyl group, m is equal to 0 when A is hydrogen, is 1 when A B is oxygen and is 2 when A is nitrogen; or are polyols which contain an alkyl amine of within the polyol chain or a dialkylylamino group pendant to the polyol chain wherein the polyol chain is obtained by copolymerization of at least one monomer containing an alkyl aziridine or N,N-dialkyl glycidylamine with at least one alkylene oxide. These auto-catalytic polyols are reacted with a polyisocyanate in the presence of other additives and/or auxiliary agents known per se to produce polyurethane products.Type: GrantFiled: August 10, 2002Date of Patent: July 13, 2004Assignee: Dow Global Technologies Inc.Inventors: Simon Waddington, Jean-Marie L. Sonney, Richard J. Elwell, Francois M. Casati, Antoine Storione
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Patent number: 6740686Abstract: The invention concerns a method for making a polyurethane foam by reacting at least a polyester polyol with at least a polyisocyanate in the presence of a foaming agent and a catalytic agent, such a polyester polyol having been previously obtained by reacting a reactive acid A comprising at least an aliphatic or aromatic polyacid with functionality not less than 2 with at least a polyol P2 with functionality equal to 2 and at least an aliphatic or aromatic polyacid with functionality not less than 2 with at least a polyol P2 with functionality equal to 2 and at least a polyol P3 with functionality not less than 3, being thereafter called AP2P3, wherein the catalytic agent at least partly consists of at least one amine polyester polyol AP2P3, wherein at least part of polyol P3 consists of at least a polyoxyalkylene polyalkanolamine having at least a tertiary amine function, the alkanol radicals of said polyalkanolamine being C1-C6, the alkylene oxide units being C2-C4 and the statistical mean of the number N oType: GrantFiled: November 27, 2000Date of Patent: May 25, 2004Assignee: Crompton CorporationInventors: Denis Ghesquiere, Remy Dumont
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Patent number: 6713521Abstract: A method of preparing a rigid polyurethane foam having improved thermal conductivity, and a composition for such rigid polyurethane foam is provided. In the preparation a rigid polyurethane foam from a composition comprising an aromatic polyisocyanate, a polyol, a blowing agent, a catalyst, a surfactant and other aids, the blowing agent is a blend of cyclopentane and water, and the polyol contains a polyether polyol prepared by addition-polymerizing an alkylene oxide to o-toluenediamine as an initiator.Type: GrantFiled: March 30, 2000Date of Patent: March 30, 2004Assignee: Bayer AktiengesellschaftInventors: Takanori Chiba, Takuya Matsumoto, Keiji Ono, Takehiro Shimizu
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Patent number: 6635685Abstract: A process for producing a rigid polyurethane foam provides a rigid polyurethane foam having a closed-cell size of about 80-130 &mgr;m and thus, improved heat insulating properties.Type: GrantFiled: December 20, 2001Date of Patent: October 21, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Sang Jo Suk, Bong Ku Kim, Sang Bu Jeon, Cheol Min Hur
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Patent number: 6586487Abstract: A method for making an energy-absorbing foam having a density that is less than about 7 pcf that exhibits excellent strength properties and that is particularly suitable for automobile bumper applications. The invention is also directed to the energy-absorbing foam made with the method.Type: GrantFiled: July 12, 2000Date of Patent: July 1, 2003Assignee: Bayer CorporationInventors: Neil H. Nodelman, David D. Steppan, Alan D. Bushmire, William E. Slack
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Patent number: 6586490Abstract: The present invention relates to polyol mixtures which are suitable for the preparation of rigid polyurethane foams and comprise addition products of alkylene oxide on aromatic di- or polyamines, and rigid foams prepared with these polyol mixtures.Type: GrantFiled: October 10, 2001Date of Patent: July 1, 2003Assignee: Bayer AktiengesellschaftInventors: Karl-Werner Dietrich, Torsten Heinemann, Manfred Dietrich
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Patent number: 6562880Abstract: Rigid polyurethane or polyisocyanurate foams are produced by reacting an organic polyisocyanate with an amine-based polyether polyol in the presence of a catalyst, a hydrogen-containing fluorocarbon, water and carbon dioxide.Type: GrantFiled: April 17, 2002Date of Patent: May 13, 2003Assignee: Bayer CorporationInventors: Herman P. Doerge, Mauricio H. Venegas
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Publication number: 20030060526Abstract: A method of preparing a rigid polyurethane foam having improved thermal conductivity, and a composition for such rigid polyurethane foam is provided. In the preparation a rigid polyurethane foam from a composition comprising an aromatic polyisocyanate, a polyol, a blowing agent, a catalyst, a surfactant and other aids, the blowing agent is a blend of cyclopentane and water, and the polyol contains a polyether polyol prepared by addition-polymerizing an alkylene oxide to o-toluenediamine as an initiator.Type: ApplicationFiled: March 30, 2000Publication date: March 27, 2003Inventors: Takanori Chiba, Takuya Matsumoto, Keiji Ono, Takehiro Shimizu
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Patent number: 6534555Abstract: Provided are catalyst systems which produce flexible polyurethane polyester foams that are color stable, are lower in odor, and uses less catalysts than current most commonly practiced technology. The use of lower amounts of catalysts with low vapor pressure reduces worker exposure to alkaline corrosive materials, reduces pollution through less pounds of volatile organic chemicals (VOC's) and is less expensive.Type: GrantFiled: September 10, 2001Date of Patent: March 18, 2003Assignee: Huntsman Petrochemical CorporationInventors: Ernest L. Rister, Jr., Robert A. Grigsby, Jr., Robert L. Zimmerman
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Patent number: 6509387Abstract: The description relates to production of rigid foamed plastics containing urethane groups, by use of a blowing-agent mixture containing 5 to 50 parts by weight of C3 and/or C4 alkanes and 50 to 95 parts by weight of cyclopentane. There is also a description of use of the thus-produced rigid foamed plastics as composite components or for foam filling of cavities in refrigerator construction.Type: GrantFiled: June 4, 1998Date of Patent: January 21, 2003Assignee: Bayer AktiengesellschaftInventors: Karl Werner Dietrich, Norbert Eisen, Gerhard Heilig
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Patent number: 6506813Abstract: The invention relates to a polyol composition comprising b1) a polyol where the EO content is at least 50%; b2) a polyol having a primary hydroxyl content of at least 50%; b3) an amine-initiated polyoxypropylene polyol having an OH value greater than 400, according to the following proportions: b1: 20-70 wt %, b2: 5-50 wt %, b3: 5-50 wt %. The invention also relates to a process for preparing a cold-setting flexible polyurethane foam at NCO index of 70-120 by reacting a) a polyisocyanate; the polyols b1), b2) and b3); c) water; and d) additives and auxiliaries known per se. The invention finally relates to a reaction system comprising A) a polyisocyanate and B) an isocyanate-reactive component comprising the polyols b1), b2) and b3).Type: GrantFiled: January 10, 2002Date of Patent: January 14, 2003Assignee: Huntsman International, LLCInventors: Alain Parfondry, Jianming Yu
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Patent number: 6495722Abstract: Provided herein are polyurethane foams which may be prepared by spray techniques. The foams of the invention are prepared using conventional isocyanates and a novel Mannich condensate polyol having a hydroxy number in the range of 250-340 and a viscosity of 3500 cps or less, and wherein the Mannich condensate polyol is derived from nonylphenol, formaldehyde, an alkanolamine, and propylene oxide as the sole alkoxylating agent. Polyurethane foams prepared according to the invention possess superior physical properties over sprayed polyurethane foams prepared using Mannich condensate polyols which are made using mixtures of propylene oxide and ethylene oxide.Type: GrantFiled: September 17, 2001Date of Patent: December 17, 2002Assignee: Huntsman Petrochemical CorporationInventors: Robert L. Zimmerman, Marshall P. Devine, Patrick L. Weaver
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Patent number: 6476091Abstract: The present invention discloses a polyol resin composition containing a polyether polyol blend, a polyester polyol, and a hydrocarbon blowing agent. The polyether polyol blend has at least a diamine initiated polyol, a propylene oxide polyol, and a polyethylene terephthalate initiated polyol having a functionality of from 2.3 to 3.0. The polyester polyol is preferably a phthalic anhydride initiated polyester polyol. The blowing agent is a C4-C6 hydrocarbon. Also disclosed is a method of producing a polyurethane foam combining the above mentioned polyol resin and an isocyanate component.Type: GrantFiled: November 28, 2001Date of Patent: November 5, 2002Assignee: BASF CorporationInventors: Walter R. White, III, Robert E. Riley, Jimmy L. Patterson, James A. Mullins
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Patent number: 6472448Abstract: The invention relates to a halogen-free, flame-retardant rigid polyurethane foam, wherein a combination of oxalkylated alkylphosphonic acids and ammonium polyphosphate is present as flame retardant, and to a process for its production. The invention also relates to the use of oxalkylated alkylphosphonic acids in a mixture with ammonium polyphosphate for producing halogen-free, flame-retardant rigid polyurethane foams of this type.Type: GrantFiled: March 27, 2001Date of Patent: October 29, 2002Assignee: Clariant GmbHInventors: Anne Witte, Wilfried Krieger
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Patent number: 6472446Abstract: The present invention discloses a phase stable polyol blend composition containing a sucrose and dipropylene glycol co-initiated propylene oxide polyether polyol, a polyester polyol, a compatibilizing agent and a hydrocarbon blowing agent. The polyester polyol is preferably a phthalic anhydride-initiated polyester polyol. The compatibilizing agent is a butanol-initiated propylene oxide polyether surfactant.Type: GrantFiled: March 9, 2001Date of Patent: October 29, 2002Assignee: BASF CorporationInventors: Robert E. Riley, Walter R. White, III, Jim Patterson
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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: 6420446Abstract: Polyurethanes synthesized from sorbitol-branched polyester made by esterification of a diacid (or anhydride thereof diol, and sorbitol (or mixtures of same with other polyols).Type: GrantFiled: March 27, 2000Date of Patent: July 16, 2002Assignee: CK WitcoInventor: Wally Liyuan Chang
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Patent number: 6410608Abstract: A process for producing a polyurethane foam comprising reacting a polyol component with an isocyanate component in the presence of a catalyst comprising a compound represented by the formula (I): wherein p is an integer of 4 to 8, and a compound having a primary amino group and a tertiary amino group in its molecule, a blowing agent and a surfactant. The polyurethane foam obtained by the process of the present invention can be suitably used for heat insulating materials for construction materials, electric refrigerators, refrigerated warehouses, baths and the like, interior materials for automobiles, and the like.Type: GrantFiled: April 27, 2001Date of Patent: June 25, 2002Assignee: Kao CorporationInventors: Mitsuru Sakai, Atsushi Ishikawa, Masayoshi Morii
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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: 6339110Abstract: Process for the preparation of a rigid polyurethane or urethane-modified polyisocyanurate foam in the presence of a hydrocarbon blowing agent using a tolylenediamine-initiated polyether polyol in an amount of between 10 and 40% by weight based on total isocyanate-reactive compounds.Type: GrantFiled: June 10, 1997Date of Patent: January 15, 2002Assignee: Imperial Chemical Industries PLCInventors: Andrea Cappella, Werner Hoffmann, Silvio Barettini, Maria Vittoria Franco, Walter Bazzo
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Patent number: 6316513Abstract: A process for the production of rigid polyurethane foams having low thermal conductivity is described.Type: GrantFiled: March 8, 1999Date of Patent: November 13, 2001Assignee: Bayer AktiengesellschaftInventors: Dennis McCullough, Torsten Heinemann, Norbert Eisen, Walter Klän
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Patent number: 6306918Abstract: A semi-rigid polyurethane foam having a strength retention of not less than 70% when allowing it to stand at 120° C. for 24 hours, and a Haze value of not more than 2 as determined by Fogging test, prepared by mixing a polyol mixture comprising a polyol, water and a catalyst with a polyisocyanate, and foaming the resulting mixture, and a process for preparing the same. The semi-rigid polyurethane foam would not cause fogging under high-temperature conditions, and can be suitably used for interior materials of automobiles such as headrests and armrests.Type: GrantFiled: August 31, 1999Date of Patent: October 23, 2001Assignee: Kao CorporationInventors: Mitsuru Sakai, Atsushi Ishikawa, Masayoshi Morii
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Patent number: 6306920Abstract: Closed cell rigid polyurethane foams are produced by reacting a) a polyol component with b) a polyisocyanate having an NCO content of from about 20 to about 48% by weight.Type: GrantFiled: November 18, 1999Date of Patent: October 23, 2001Assignee: Bayer AktiengesellschaftInventors: Torsten Heinemann, Werner Dietrich, Walter Klän
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Patent number: 6274639Abstract: An improved durable, low density, high build polyurethane coating is disclosed, as well as its method of manufacture. A slow reacting polyisocyanate is combined with a polyol so as to form a uniform mixture with an extremely long pot life. The low viscosity uniform mixture can then be sprayed onto a substrate using a conventional spray gun. A polyurethane catalyst is introduced after formation of the uniform mixture, preferably via a second spray nozzle so that catalyst is externally mixed into the polyisocyanate/polyol spray stream. This is a 100%, or near 100%, solids system so that there is very low volatile organic compound emissions.Type: GrantFiled: April 20, 2000Date of Patent: August 14, 2001Assignee: Lockheed Martin CorporationInventors: James E. Foreman, Douglas R. Dowell, Bobby G. Isler
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Patent number: 6156814Abstract: The use of 3-[3-(dimethylamino)propyl]-propionamide (Formula I) and 3,3'-{[3-(dimethylamino)propyl]imino}bis-propanamide (Formula II) as catalysts in the production of polyurethanes.Type: GrantFiled: March 26, 1999Date of Patent: December 5, 2000Assignee: Air Products and Chemicals, Inc.Inventors: Ning Chen, Richard Van Court Carr, Mark Leo Listemann, Richard Paul Underwood
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Patent number: RE38201Abstract: The use of 3-[3-(dimethylamino)propyl]-propionamide (Formula I) and 3,3′-{[3-(dimethylamino)propyl]imino}bis-propanamide (Formula II) as catalysts in the production of polyurethanes. The use of 3-{[3-(dimethylamino)propyl]amino}-propionamide (Formula I) and 3,3′-{[3-(dimethylamino)propyl]imino}bis-propanamide (Formula II) as catalysts in the production of polyurethanes.Type: GrantFiled: March 22, 2002Date of Patent: July 22, 2003Assignee: Air Products and Chemicals, Inc.Inventors: Ning Chen, Richard Van Court Carr, Mark Leo Listemann, Richard Paul Underwood