Ingredient Contains Only Carbon And Hydrogen Atoms, Only C And Halogen Atoms, Or Only C, H, And Halogen Atoms Patents (Class 521/131)
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Patent number: 6602927Abstract: The invention provides polyisocyanurate systems for manufacture of polyisocyanurate foam components such as those from SRIM processes. The reaction systems include a polyisocyanate and a polyisocyanate reactive component that includes a trimerization catalyst, polyol, and a carboxylic acid blowing agent, optionally with water as a co-blowing agent. The reaction systems can be blown exclusively with carboxylic acid to produce SRIM products which can be demolded with reduced mold residence time.Type: GrantFiled: October 2, 2000Date of Patent: August 5, 2003Assignee: Huntsman International LLCInventor: Andreas Rothacker
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Patent number: 6602971Abstract: Flowable reaction components of a reaction mixture which form solid or foamed material comprising filling material are transported from a storage container to a high-pressure mixing head in pressure stages by the use of gear pumps connected in series without major wear of the gear pumps.Type: GrantFiled: April 20, 2001Date of Patent: August 5, 2003Assignee: Hennecke GmbHInventors: Hans-Michael Sulzbach, Reiner Raffel
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Publication number: 20030134919Abstract: The invention is directed to polyurethane foam shoe soles containing an additive comprising a mixture of polyethylene wax and PTFE (polytetrafluoroethylene), and to polyol components containing the additive. The additive is produced to include the mixture at a density from greater than 0.97 to about 1.1 times the density of the polyol component.Type: ApplicationFiled: December 21, 2001Publication date: July 17, 2003Inventors: Gary Brant, Dragoljub Todoroski
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Patent number: 6593385Abstract: The invention relates to a halogen-free, pentane-blown, flame-retardant rigid polyurethane foam, wherein oxalkylated alkylphosphonic acids are present as flame retardants. The invention further relates to a process for producing halogen-free, pentane-blown, flame-retardant rigid polyurethane foams, which comprises using oxalkylated alkylphosphonic acids as flame retardants. Finally, the invention also relates to the use of oxalkylated alkylphosphonic acids of the formula I as halogen-free flame retardants for producing flame-retardant rigid polyurethane foams.Type: GrantFiled: March 27, 2001Date of Patent: July 15, 2003Assignee: Clariant GmbHInventors: Anne Witte, Wilfried Krieger
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Patent number: 6590003Abstract: The invention provides a process for the production of flexible to semi-rigid polyurethane shaped articles with a compacted edge zone of given hardness and a significantly more flexible cell core, so-called integral foams, in which non-combustible mixtures of fluoroalkanes which comprise 1,1,1,3,3-pentafluorobutane (R 365mfc) are employed as physical blowing agents.Type: GrantFiled: June 6, 2002Date of Patent: July 8, 2003Assignee: Bayer AktiengesellschaftInventors: Norbert Eisen, Daniel Seidlitz
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Patent number: 6590005Abstract: Rigid polyurethane foams are prepared from an isocyanate composition containing diphenylmethane diisocyanate, three ring oligomers of polyphenylene polymethylene polyisocyanate and higher homologues of polyphenylene polymethylene polyisocyanate.Type: GrantFiled: July 24, 2002Date of Patent: July 8, 2003Assignee: Huntsman International LLCInventors: Sachchida Singh, Steven Burns
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Patent number: 6586484Abstract: To provide a type of phenol foam characterized by the fact that the phenol foam is formed by using a hydrocarbon as the foaming agent. The phenol foam has excellent heat-insulating performance, high compressive strength and other mechanical strengths, improved brittleness and is friendly to the environment of the earth.Type: GrantFiled: August 17, 2000Date of Patent: July 1, 2003Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Yuuichi Arito, Kenji Takasa, Thumoru Kuwabara
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Patent number: 6586488Abstract: Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of polyurethane and polyisocyanurate foams.Type: GrantFiled: June 10, 1997Date of Patent: July 1, 2003Assignee: AlliedSignal Inc.Inventor: Ian Robert Shankland
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Patent number: 6583191Abstract: A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase.Type: GrantFiled: September 19, 2001Date of Patent: June 24, 2003Inventors: Michael A. Markowitz, Paul E. Schoen, Bruce P. Gaber, Banahalli R. Ratna, Paul R. Kust, David C. Turner, Douglas S. Clark, Jonathan S. Dordick
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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: 20030083393Abstract: A method for producing a rigid polyurethane foam, which comprises reacting a polyol with a polyisocyanate in the presence of an amine catalyst and a blowing agent, wherein as the amine catalyst, at least one amine compound having at least one type of substituent selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group in its molecule, or N-(2-dimethylaminoethyl)-N′-methylpiperazine, is used, and as the blowing agent, 1,1,1,3,3-pentafluoropropane (HFC-245fa) and/or 1,1,1,3,3-pentafluorobutane (HFC-365mfc) is used.Type: ApplicationFiled: July 2, 2002Publication date: May 1, 2003Inventors: Hiroyuki Kiso, Katsumi Tokumoto, Yutaka Tamano
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Publication number: 20030078310Abstract: Rigid polyurethane foams are prepared from an isocyanate composition containing diphenylmethane diisocyanate, three ring oligomers of polyphenylene polymethylene polyisocyanate and higher homologues of polyphenylene polymethylene polyisocyanate.Type: ApplicationFiled: July 24, 2002Publication date: April 24, 2003Inventors: Sachchida Singh, Steven Burns
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Patent number: 6552097Abstract: A prepolymer composition for producing polyurethane insulating foams from pressure tanks which consists of a prepolymer component with at least one PU prepolymer with a content of NCO groups of 4 to 20 wt % and usual additives, as well as a propellant component, wherein a polyisocyanate with a content of less than 2 wt %, based on the prepolymer component, of monomeric isocyanate is used.Type: GrantFiled: May 15, 2000Date of Patent: April 22, 2003Assignee: Rathor AGInventors: Mathias Pauls, Rene Schumacher
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Patent number: 6545063Abstract: The invention relates to the addition of &agr;-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof.Type: GrantFiled: September 10, 1999Date of Patent: April 8, 2003Assignee: AlliedSignal Inc.Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Barbara Ruth Decaire, Dennis Paul Konopa, Harold John Kieta, Rajiv Ratna Singh
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Patent number: 6541534Abstract: Polyurethane foams containing a syntactic phase and a cellular, non-syntactic phase are useful as reinforcing foams, such as in automotive applications. The foams are conveniently made in the reaction of a high viscosity isocyanate-reactive component and a high-viscosity polyisocyanate component, at least one of which contains a plurality of hollow microspheres.Type: GrantFiled: May 9, 2002Date of Patent: April 1, 2003Assignee: Essex Specialty Products, Inc.Inventors: Mark P. Allen, Roney J. Matijega
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Patent number: 6541532Abstract: New, useful and surprisingly effective antiscorch compositions for utilization within polyurethane foam production methods which utilize very popular tertiary amine catalysts are provided. Such compositions require the presence of nominal yet effective amounts of organic cyclic ester materials. The ring systems of such materials appear to open during exposure to heat (during the curing process) and release carboxylic acids into the curing formulation. The tertiary amines become quenched by the carboxylic acids and thus do not exhibit heat destabilization. The resultant foams exhibit extremely low, if no, areas of excessive heating (i.e., scorch) and thus are substantially uniformly colored throughout. The processes and resultant foams are also contemplated within this invention.Type: GrantFiled: June 2, 2000Date of Patent: April 1, 2003Assignee: Milliken & CompanyInventors: Mark E. Ragsdale, Sandy G. Belue
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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: 6534556Abstract: A formulated resin composition for producing a closed cell rigid polyisocyanate based foam is disclosed. The formulated resin composition for use in a polyurethane froth spraying system includes a hydrofluorocarbon blowing agent, a Mannich polyol, at least one additional polyol, a catalyst system, and a surfactant. The formulated resin composition has a hydroxyl content of at least 400 mg KOH/g and a polyurethane foam produced utilizing the formulated resin composition has a closed cell content of at least 90 percent. The formulated resin composition exhibits a zero ozone depleting potential and produces a polyurethane foam that cures faster than conventional sprayed polyurethane foams.Type: GrantFiled: February 20, 2001Date of Patent: March 18, 2003Assignee: BASF CorporationInventors: Chris Lacarte, Greg Gardin, Thomas Harris
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Publication number: 20030050356Abstract: The present invention provides compositions comprising an HFC component and a non-HFC component consisting essentially of methanol, having boiling points that are unexpectedly low and relatively constant, and uses thereof.Type: ApplicationFiled: June 3, 2002Publication date: March 13, 2003Inventors: Mary C. Bogdan, Gary M. Knopeck, Hang T. Pham, Rajiv R. Singh, Kane D. Cook
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Publication number: 20030040548Abstract: A polyurethane foam or elastomer comprises an organic polyisocyanate component, an active hydrogen-containing component reactive with the polyisocyanate component, wherein the viscosity of this component is less than about 500 cP at room temperature, a catalyst component, a surfactant, and a flame retarding composition. The components may be low VOC. A preferred flame retarding composition comprises an antimony-based compound, a halogenated, active hydrogen-containing component reactive with the polyisocyanate component, and a halogenated flame-retarding agent. Such polyurethanes are useful as gaskets, seals, padding, in automotive applications, and the like.Type: ApplicationFiled: April 25, 2002Publication date: February 27, 2003Inventors: Amy L. Gilman, Scott S. Simpson, Petr Svoboda
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Patent number: 6525108Abstract: New, useful and surprisingly effective antiscorch compositions for utilization within polyurethane foam production methods which utilize very popular tertiary amine catalysts are provided. Such compositions require the presence of nominal yet effective amounts of organic cyclic ester materials. The ring systems of such materials appear to open during exposure to heat (during the curing process) and release carboxylic acids into the curing formulation. The tertiary amines become quenched by the carboxylic acids and thus do not exhibit heat destabilization. The resultant foams exhibit extremely low, if no, areas of excessive heating (i.e., scorch) and thus are substantially uniformly colored throughout. The processes and resultant foams are also contemplated within this invention.Type: GrantFiled: February 26, 2001Date of Patent: February 25, 2003Assignee: Milliken & CompanyInventors: Mark E. Ragsdale, Sandy G. Belue
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Patent number: 6521674Abstract: A flexible, latex-like polyurethane foam having the “feel” and comfort of a latex foam and an Indentation Force Deflection (25% IFD as low as 3 lbs.) and the method of making such foam by reacting a mixture of triol polyether polyols, namely, a) a major proportion of a triol polyol having a hydroxyl content of about 50-80%, a 10-25% ethylene oxide cap and a molecular weight of about 3,000-6,500, (b) a minor proportion of a polymer triol polyol, preferably SAN polyol, having a molecular weight of about 3,000-6,5000; and (c) a very minor amount of a triol polyol having a primary hydroxyl content of at least 50% and about 40-90% ethylene oxide cap and a molecular weight of from 1,000-6,000. The polyol mixture is reacted with a MDI isocyanate in the presence of a critical amount of from about 1.5 to about 3.5 parts by weight of water, an auxiliary blowing agent and an amine catalyst.Type: GrantFiled: October 1, 1993Date of Patent: February 18, 2003Assignee: Carpenter Co.Inventors: David L. Haley, Tedd W. Wishneski
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Patent number: 6514928Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: March 15, 1999Date of Patent: February 4, 2003Assignee: AlliedSignal Inc.Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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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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Publication number: 20030013777Abstract: Rigid closed cell polyisocyanate-based insulation foams are created by reacting at least one organic polyisocyanate with compounds having at least two active hydrogen atoms in the presence of acetone used as an expansion, or blowing, agent. Various additives common to rigid closed-cell foam such as cell size controlling silicone surfactants are used to produce a thermal insulating rigid foam. Also, catalysts, flame retardant chemicals, and organic surfactants can be any of the ordinary products normally used by those experienced in the art of foam production. The utilization of acetone and water reduce the amount of hydrocarbon VOCs needed to obtain any given density thus reducing the volatile organic compounds released from the foam insulation. This benefit comes without detriment to the other important qualities needed in such a foam.Type: ApplicationFiled: May 1, 2002Publication date: January 16, 2003Inventors: James Thornsberry, Gregory Islas, Robert H. Blanpied
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Patent number: 6506812Abstract: A thermosetting plastic foam solid formed from the reaction product of: (a) either polyisocyanate or isocyanate-based foam; (b) a polyol-based foam; (c) a catalyst which is capable of promoting the thermosetting reaction between the polyisocyanate or isocyanate-based foam and the polyol-based foam; and (d) a blowing agent which comprises a high purity cyclopentane product, wherein the high purity cyclopentane product is about 95% or greater pure cyclopentane, and, optionally, (e) water and/or (f) liquid flame retardant.Type: GrantFiled: July 24, 2001Date of Patent: January 14, 2003Assignee: Exxon Mobil Chemical Patents IncInventors: Robert H. Blanpied, James Darryl Thornsberry, Steven E. Silverberg, James R. Lattner, C. Harry McMullen, Leonel E. Sanchez, Tronze-I Dennis Wu
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Publication number: 20020198275Abstract: A formulated resin composition for producing a closed cell rigid polyisocyanate based foam is disclosed. The formulated resin composition for use in a polyurethane froth spraying system includes a hydrofluorocarbon blowing agent, a Mannich polyol, at least one additional polyol, a catalyst system, and a surfactant. The formulated resin composition has a hydroxyl content of at least 400 mg KOH/g and a polyurethane foam produced utilizing the formulated resin composition has a closed cell content of at least 90 percent. The formulated resin composition exhibits a zero ozone depleting potential and produces a polyurethane foam that cures faster than conventional sprayed polyurethane foams.Type: ApplicationFiled: February 20, 2001Publication date: December 26, 2002Inventors: Chris Lacarte, Greg Gardin, Thomas Harris
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Patent number: 6495611Abstract: The polyisocyanate polyaddition products comprise hydrophobic compounds plus at least one further compound selected from the group consisting of: (i) organic, cyclic compounds having a molecular weight of from 200 to 3000 g/mol, (ii) salts of metals of transition groups I, II and/or VIII, (iii) organic and/or inorganic acid anhydrides, (iv) cyclic sulfonic esters and/or sulfones, (v) lactones, lactams and/or cyclic esters and/or (vi) &agr;,&bgr;-unsaturated carboxylic acids, &agr;,&bgr;-unsaturated carboxylic acid derivatives, &agr;,&bgr;-unsaturated ketones and/or &agr;,&bgr;-unsaturated aldehydes.Type: GrantFiled: January 24, 2001Date of Patent: December 17, 2002Assignee: BASF AktiengesellschaftInventors: Andreas Arlt, Sarbananda Chakrabarti, Martin Kreyenschmidt, Dieter Rodewald
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Patent number: 6486224Abstract: The disclosed invention relates to a polyurethane elastomer that has improved hydrolysis resistance. The polyurethane elastomer is made by reacting a polyol blend of an aromatic dicarboxylic acid based polyester polyol, an aliphatic dicarboxylic acid based polyester polyol, and a blowing agent. The polyol blend is reacted with an isocyanate terminated prepolymer. The aromatic dicarboxylic acid based polyester polyol is the reaction product of an aliphatic alcohol and ortho-phthalic acid. The aliphatic dicarboxylic acid based polyester polyol is the reaction product of adipic acid and glycols.Type: GrantFiled: August 23, 2001Date of Patent: November 26, 2002Assignee: Huntsman International LLCInventors: Nai Wen Lin, Ravi R. Joshi
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Publication number: 20020169228Abstract: 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: ApplicationFiled: March 9, 2001Publication date: November 14, 2002Inventors: Robert E. Riley, Walter R. White, Jim Patterson
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Patent number: 6476090Abstract: A phenolic foam having a density of from 10 kg/m3 to 100 kg/m3 and comprising a phenolic resin base part and a cellular part most of which is made up of a large number of fine cells, wherein the fine cells contain a hydrocarbon and have an average cell diameter of 5 &mgr;m to 200 &mgr;m, and the cell walls of at least most of the fine cells are formed of a smooth surface of the phenolic resin base. While the blowing agent is a hydrocarbon, the foam has a thermal conductivity comparable to that of a conventional foam made with a flon blowing agent, undergoes no change in thermal conductivity with time, exhibits excellent mechanical strength such as compressive strength, and has reduced brittleness.Type: GrantFiled: December 28, 2000Date of Patent: November 5, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Yuichi Arito, Kenji Takasa
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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: 6476080Abstract: The present invention relates to blowing agent compositions that contain at least one hydrofluorocarbon having a boiling point of 30° C. or higher and lower than about 120° C., at least one hydrofluorocarbon having a boiling point lower than 30° C., and at least one component selected from low-boiling alcohols and low-boiling carbonyl compounds. The present invention also relates to processes for preparing polymeric foam using such blowing agent compositions, as well as polymeric foams and foamable polymer compositions containing such blowing agent compositions.Type: GrantFiled: November 29, 2001Date of Patent: November 5, 2002Assignee: The Dow Chemical CompanyInventors: John D. Duffy, Warren H. Griffin
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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: 6472444Abstract: A closed cell phenolic foam is formed from a phenolic resin, a blowing agent such as HCFC141b, a catalyst and less than 2.5% by weight relative to the resin of at least one hydrofluoroether or an azeotrope formulation thereof. 1-methoxy-nonafluorobutane and especially an azeotrope formulation thereof with trans-1,2-dichloroethylene are preferred hydrofluoroethers. The phenolic foam has a stable closed cell content of greater than 90% and a stable thermal conductivity.Type: GrantFiled: September 27, 2001Date of Patent: October 29, 2002Assignee: Kingspan Industrial Insulation LimitedInventors: Mark Stanley Harris, Graham Morgan Edgerley
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Patent number: 6461536Abstract: A polyester polyol composition comprising a phthalic anhydride-initiated polyester polyol, a C4-C6 hydrocarbon blowing agent, and an oxyethylated fatty acid or fatty alcohol compatibilizing agent having an HLB of from about 7 to about 12. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rigid polymer foam articles and providing rigid foams having good dimensional stability and improved insulation properties.Type: GrantFiled: February 5, 1999Date of Patent: October 8, 2002Assignee: BASF CorporationInventors: Joe C. Wilson, Jimmy L. Patterson, James S. Dailey, Walter R. White, III, Robert E. Riley
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Patent number: 6458862Abstract: Hydrofluoropolyether foaming agents selected from: difluoromethoxy-bis(difluoromethyl ether) of formula HCF2OCF2OCF2H; and/or 1-difluoromethoxy-1,1,2,2-tetrafluoroethyl difluoromethyl ether of formula HCF2OCF2CF2OCF2H, and their use in polyurethane foams.Type: GrantFiled: August 9, 1999Date of Patent: October 1, 2002Assignee: Ausimont S.p.A.Inventors: Ezio Musso, Mario Visca, Giampiero Basile
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Patent number: 6455601Abstract: Rigid polyurethane foams are prepared from an isocyanate composition containing diphenylmethane diisocyanate, three ring oligomers of polyphenylene polymethylene polyisocyanate and higher homologues of polyphenylene polymethylene polyisocyanate.Type: GrantFiled: May 24, 2001Date of Patent: September 24, 2002Assignee: Huntsman International LLCInventors: Sachchida Singh, Steven Burns
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Publication number: 20020123535Abstract: A polyol solution containing one or a combination of a benzoate glycol adduct, a substituted benzoate glycol adduct, a napthenate glycol adduct, a substituted naphthenate glycol adduct, a toluate glycol adduct, or a substituted toluate glycol adduct, and a closed cell, rigid polymer foam formed as a reaction product of the polyol solution, which foam comprises the reaction product of a polyisocyanate and an isocyanate-reactive component in the presence of a catalyst and a hydrogen-containing blowing agent or mixture of hydrogen-containing blowing agents, wherein the isocyanate-reactive component comprises a mixture of a hydroxy terminated polyester and a polyester comprised of the benzoic acid glycol adduct, toluic acid glycol adduct, or napthoic acid glycol adduct Foams prepared from the mixture have superior thermal conductivity, lower flammability, and higher stability of the emulsified liquid reactants prior to polymerization.Type: ApplicationFiled: December 21, 2000Publication date: September 5, 2002Inventors: Carina Araullo-McAdams, John Canaday, Kelly Brown
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Publication number: 20020120029Abstract: Rigid foam excellent in compression strength, dimensional stability, flame retardancy and adhesion is produced.Type: ApplicationFiled: November 16, 2001Publication date: August 29, 2002Inventors: Yoshiyuki Dohmoto, Masayuki Fujidai
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Publication number: 20020103269Abstract: 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: ApplicationFiled: December 20, 2001Publication date: August 1, 2002Inventors: Sang Jo Suk, Bong Ku Kim, Sang Bu Jeon, Cheol Min Hur
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Publication number: 20020103268Abstract: Rigid foams containing urethane groups and predominantly isocyanurate groups are obtained by reaction ofType: ApplicationFiled: January 3, 1995Publication date: August 1, 2002Inventors: ROLF WIEDERMANN, STEPHAN WENDEL, WOLFGANG SCHMITZ
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Patent number: 6423755Abstract: Polyurethane foams containing a syntactic phase and a cellular, non-syntactic phase are useful as reinforcing foams, such as in automotive applications. The foams are conveniently made in the reaction of a high viscosity isocyanate-reactive component and a high-viscosity polyisocyanate component, at least one of which contains a plurality of hollow microspheres.Type: GrantFiled: February 25, 2000Date of Patent: July 23, 2002Assignee: Essex Specialty Products, IncInventors: Mark P. Allen, Roney J. Matijega
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Patent number: 6423757Abstract: The invention discloses novel azeotrope-like mixtures of fluorinated compounds which are useful for heating and cooling as heat transfer agents and/or refrigerants. The azeotrope-like mixture comprises: (a) pentafluoropropane; and (b) a hydrofluorocarbon of the formula: CxFyHz, wherein x is 3, 4, 5, or 6 and y and z are each independently 1 or a positive whole number such that the result of y/(y+z) is greater than 0.67.Type: GrantFiled: August 31, 1998Date of Patent: July 23, 2002Assignee: Electric Power Research Institute, Inc.Inventors: David P. Wilson, Rajiv R. Singh, Rajat S. Basu, Ellen L. Swan, David Nalewajek
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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: 6414046Abstract: The invention relates to polyurethane and polyisocyanurate closed-cell foams. More particularly, the invention relates to polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising 1-chloro-1,2,2,2-tetrafluoroethane (HCFC-124) and 1,1-dichloro-1-fluoroethane (HCFC-141b). Foams prepared with the blowing agent of the invention possess improved thermal performance.Type: GrantFiled: September 4, 2001Date of Patent: July 2, 2002Assignee: Honeywell International Inc.Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Peter Brian Logsdon, David John Williams
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Patent number: 6410609Abstract: The invention described herein pertain generally to at least semi-rigid polyurethane foams which cure upon exposure to moisture and which contain major amounts of non-ozone depleting hydrofluorocarbon gas. The foams additionally contain a diisocyanate, preferably, 4,4′-diphenylmethane diusocyanate (MDI) and optionally including higher oligomers of MDI (polymeric MDI) in addition to at least two polyols of different molecular weights, e.g., as measured by number average molecular weight, preferably a polyester or polyether polyol, more preferably a polyalkylene polyol. The at least two polyols have a difference in molecular weight which is greater than or equal to 10%, preferably greater than or equal to 20%, more preferably greater than or equal to 35%, and most preferably greater than or equal to 50%, said number average molecular weight of the higher molecular weight polyol being no greater than approximately 4,000.Type: GrantFiled: July 27, 2000Date of Patent: June 25, 2002Assignee: Fomo Products, Inc.Inventors: Anthony James Taylor, Reto Faessler
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Publication number: 20020072548Abstract: The invention relates to polyurethane and polyisocyanurate closed-cell foams. More particularly, the invention relates to polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising 1-chloro-1,2,2,2-tetrafluoroethane (HCFC-124) and 1,1-dichloro-1-fluoroethane (HCFC-141b). Foams prepared with the blowing agent of the invention possess improved thermal performance.Type: ApplicationFiled: September 4, 2001Publication date: June 13, 2002Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Peter Brian Logsdon, David John Williams
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Publication number: 20020065334Abstract: A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase.Type: ApplicationFiled: September 19, 2001Publication date: May 30, 2002Inventors: Michael A. Markowitz, Paul E. Schoen, Bruce P. Gaber, Banahalli R. Ratna, Paul R. Kust, David C. Turner, Douglas S. Clark, Jonathan S. Dordick
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Patent number: 6395797Abstract: New, useful and surprisingly effective polymeric triphenylmethane colorant-containing compositions which exhibit very low color degradation within polyurethane foams. Generally during polyurethane foam production, certain amine-based hydroxyl-group containing catalysts deleteriously attack the nitrogen linking groups within triphenylmethane polymeric colorants. Such compositions require the presence of nominal yet effective amounts of organic cyclic ester materials. The ring systems of such materials appear to open during exposure to heat (during the foaming procedure) and release carboxylic acids into the foaming formulation. The tertiary amines become quenched by the carboxylic acids and thus do not exhibit degradation of the TPM-based chromophore. The resultant foams exhibit substantially uniform color throughout. The processes and resultant foams are also contemplated within this invention.Type: GrantFiled: February 21, 2001Date of Patent: May 28, 2002Assignee: Milliken & CompanyInventors: Mark E. Ragsdale, Sandy G. Belue