Ingredient Contains A -c-x-c- Group Wherein X Is A Chalcogen Atom And None Of The C Atoms Bonded To The Chalcogen Are Double-bonded To An Additional Chalcogen Atom Patents (Class 521/114)
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Publication number: 20100113630Abstract: A liquid flame retardant composition having one or more flame retarding agents, which are the epoxides obtainable by reacting tetrabromobisphenol A with epichlorohydrin and their end-capped derivatives represented by Formula (1), is provided. The liquid composition is especially useful in the preparation of rigid polyurethane foams.Type: ApplicationFiled: May 14, 2007Publication date: May 6, 2010Applicant: BROMINE COMPOUNDS LTD.Inventors: Gelmont Mark, Michael Peled, Dina Alon, Ron Frim, Yoav Bar-Yaakov
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Patent number: 7705063Abstract: A polyurethane foam and a resin composition that may be used to form the polyurethane foam is provided. The resin composition comprises a first ethylene diamine-based polyol having about 100% ethylene oxide capping present in an amount of from 0.5 to 8 parts by weight based on 100 parts by weight of the resin composition, a second polyol, and a physical blowing agent. The polyurethane foam comprises the reaction product of an isocyanate component and the resin composition. A method of forming the polyurethane foam on a substrate, comprising the steps of combining the isocyanate component, the first ethylene diamine-based polyol having about 100% ethylene oxide capping, the second polyol, and the physical blowing agent to form a polyurethane composition is also provided. The polyurethane composition is applied onto the substrate at an ambient temperature of 0° C. or lower to form the polyurethane foam.Type: GrantFiled: February 16, 2007Date of Patent: April 27, 2010Assignee: BASF AktiengesellschaftInventors: Chris Janzen, Greg Gardin, Chris Lacarte, Katrina Schmidt
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Patent number: 7671103Abstract: The invention relates to the use of compounds of the general formula (VII) as stabilizers in the preparation of polyurethane foams.Type: GrantFiled: January 7, 2005Date of Patent: March 2, 2010Assignee: Goldschmidt AGInventors: Christian Eilbracht, Manfred Klincke, Isabella Ulrich-Brehm
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Publication number: 20100004155Abstract: There is provided an azeotrope or azeotrope-like composition containing (A) 1,1,2,2-tetrafluoro-1-methoxyethane and (B) a compound formed of at least one selected from the group consisting of (Z)-1-chloro-3,3,3-trifluoropropene, 2-bromo-3,3,3-trifluoropropene, and (E)-2-bromo-1,3,3,3-tetrafluoropropene.Type: ApplicationFiled: October 2, 2007Publication date: January 7, 2010Applicant: CENTRAL GLASS COMPANY LIMITEDInventors: Akira Ishihara, Yasuo Hibino
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Patent number: 7517917Abstract: A composition for preparing a nanoporous material. The composition comprises a thermostable matrix precursor, a calixarene derivative, and a solvent. The composition may enable formation of a low dielectric constant film in which nanopores with a size not larger than 50 ? are uniformly distributed.Type: GrantFiled: October 7, 2005Date of Patent: April 14, 2009Assignee: Samsung Corning Co., Ltd.Inventors: Jin Heong Yim, Kwang Hee Lee
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Patent number: 7482389Abstract: A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.Type: GrantFiled: April 20, 2005Date of Patent: January 27, 2009Assignee: International Business Machines CorporationInventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
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Publication number: 20080200573Abstract: Styrenic polymer foams, especially expanded and/or extruded styrenic polymer foams, are flame retarded by use of one or more flame retardant additives.Type: ApplicationFiled: August 1, 2006Publication date: August 21, 2008Applicant: ALBEMARLE CORPORATIONInventors: Kimberly A. Maxwell, Saadat Hussain, Dominique Fasbinder, Danielle F. Goossens, Govindarajulu Kumar, Arthur G. Mack, Paul F. Ranken
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Publication number: 20080166410Abstract: The present invention relates to novel hydrophilic swellable addition polymers comprising improved odor control, a process for their preparation and their use for absorbing aqueous fluids and a process for screening superabsorbents.Type: ApplicationFiled: October 16, 2007Publication date: July 10, 2008Applicant: BASF AKTIENGESELLSCHAFTInventors: Rudiger Funk, Norbert Herfert, Mariola Wanior, Uwe Stuven, Martin Beck
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Publication number: 20080139683Abstract: A hydrofluoroether compound comprises two terminal, independently fluoroalkyl or perfluoroalkyl groups and an intervening oxytetrafluoroethylidene moiety (—OCF(CF3)—) bonded through its central carbon atom to an alkoxy- or fluoroalkoxy-substituted fluoromethylene moiety (—CF(OR)—), each of the terminal groups optionally comprising at least one catenated heteroatom.Type: ApplicationFiled: December 6, 2006Publication date: June 12, 2008Inventors: Richard M. Flynn, Michael G. Costello, Daniel R. Vitcak
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Patent number: 7294655Abstract: Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers.Type: GrantFiled: January 31, 2004Date of Patent: November 13, 2007Assignee: Nova Chemicals Inc.Inventors: Jiansheng Tang, David Allen Cowan, Dennis H. Piispanen, Michael T. Williams
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Patent number: 7183330Abstract: A method for making a rigid polyurethane foam by reacting a polyisocyanate and a polyol in the presence of a urethane catalyst, a blowing agent and a silicone surfactant characterized by employing a blowing agent comprising a C4 or C5 hydrocarbon, or mixtures thereof, with an average molecular weight of ?72 g/mole and a boiling point in the range of 27.8 to 50° C., and a silicone surfactant comprising a polyether-polysiloxane copolymer represented by the following formula: (CH3)3—Si—O—(Si(CH3)2—O)x—(Si(CH3)(R)O)y—Si(CH3)3 where R=(CH2)3—O—(—CH2—CH2—O)a—(CH2—CH(CH3)—O)b—R?, and where R? is H, (CH2)zCH3, or C(O)CH3; x+y+2 is 60–130; x/y is 5–14; z is 0–4; the total surfactant molecular weight, based on the formula, is 7000–30,000 g/mole, the wt % siloxane in the surfactant is 32–70 wt %, the blend average molecular weight (BAMW) of the polyether portion is 450–1000 g/mole, and the mole % of ethylene oxide in the polyether portion is 70–100 mole %.Type: GrantFiled: December 15, 2003Date of Patent: February 27, 2007Assignee: Air Products and Chemicals, Inc.Inventors: Wayne Robert Furlan, Mark Leo Listemann, Joan Sudbury-Holtschlag, Thomas John Markley, Gary Dale Andrew
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Patent number: 7087657Abstract: The present invention relates to polyol dispersions with long-term stability, to cellular polyurethane moldings produced therewith, to processes for their preparation and to their use.Type: GrantFiled: December 15, 2003Date of Patent: August 8, 2006Assignee: Bayer AktiengesellschaftInventors: Peter Haas, Alfred Neuhaus
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Patent number: 6932918Abstract: The present invention relates to the discovery of compositions which include fluoroethane, 2-fluoropropane or tert-butylfluoride. These compositions are useful as pure components or with at least one of tetrafluoroethane, difluoroethane, hexafluoropropane, a hydrocarbon or dimethylether. These compositions are useful as aerosol propellants, refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, and displacement drying agents.Type: GrantFiled: April 22, 2003Date of Patent: August 23, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Vinci Martinez Felix, Allen Capron Sievert
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Patent number: 6921779Abstract: Rigid polyurethane blowing agent enhancers, methods for using them, and the products produced by these methods are disclosed. The enhancers are low molecular weight alcohols and/or ethers that assist the action of blowing agents comprising a hydrohalocarbon compound.Type: GrantFiled: November 3, 2003Date of Patent: July 26, 2005Assignee: Air Products and Chemicals, Inc.Inventor: John William Miller
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Patent number: 6887913Abstract: A method for producing a rigid foamed synthetic resin, which comprises reacting a polyol with a polyisocyanate compound in the presence of water, a catalyst and a fluorine-containing compound of the formula 1: Rf—O-(A-O)n—R??Formula 1 where in the formula 1, Rf is a C2-27 fluorine-containing organic group, n is an integer of from 1 to 100, A is an alkylene group having a carbon number in the straight chain portion between bonds of from 2 to 4, provided that when n is from 2 to 100, the plurality of A may be the same or different, and R is a hydrogen atom, a C1-18 alkyl group or a C1-18 acyl group.Type: GrantFiled: July 18, 2002Date of Patent: May 3, 2005Assignee: Asahi Glass Company, LimitedInventors: Hiromichi Hotta, Hisashi Sato, Tadanobu Kuroki, Genichirou Enna
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Patent number: 6861452Abstract: The present invention provides a composition for flame-retardant flexible polyurethane foam comprising: (i) a polyol component; (ii) a polyisocyanate component; (iii) a halogen-free phosphate ester that meets the following conditions (a) to (d), and that contains at least one alcoholic hydroxyl group: (a) an acid value of 2 KOHmg/g or less, (b) a viscosity of 5 Pa·s or less at 25° C., (c) a hydroxyl value of 5 to 250 KOHmg/g, and (d) a weight average molecular weight of 200 to 2000; (iv) a tertiary amine carboxylate; (v) a silicone foam stabilizer; and (vi) a blowing agent. The composition for flame-retardant flexible polyurethane foam of the present invention can give a flexible polyurethane foam that has satisfactory flame retardant properties, as well as excellent properties such as better heat resistance, fogging resistance and scorch resistance and extremely low compression strain.Type: GrantFiled: August 20, 2002Date of Patent: March 1, 2005Assignee: Daichi Chemical Industry Co., Ltd.Inventors: Noriaki Tokuyasu, Katsumi Kameda
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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: 6794420Abstract: Polyurethane article black colorants which comprise a novel blue polymeric anthraquinone colorant, rather than the previous standard polymeric triphenylmethane blue-type colorants are provided. Such a novel blend of colorants to produce black colorations within the target polyurethane foams exhibits very low color degradation within polyurthane foams, primarily due to the stability and resiliency of the novel anthraquinone-based polymeric colorant in the presence of high isocyanate levels, as well as large amounts of reactive tertiary amines (from catalyst residue, for example). A black colorant comprising such a novel blue polymeric colorant, as well as polyurethane foams comprising such a novel black coloring agent and methods of producing such foams are all contemplated within this invention.Type: GrantFiled: March 31, 2003Date of Patent: September 21, 2004Assignee: Milliken & CompanyInventors: Mark E. Ragsdale, Jusong Xia, Sandy G. Belue
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Patent number: 6787580Abstract: Prepare a multimodal thermoplastic polymer foam having a distribution of large and small cells in a substantial absence of water by using a blowing agent stabilizer. Multimodal foams of the present invention have blowing agent stabilizer predominantly located proximate to large cells. The resulting multimodal foams have particular utility as thermal insulating materials.Type: GrantFiled: September 28, 2001Date of Patent: September 7, 2004Assignee: Dow Global Technologies Inc.Inventors: Yohannes Chonde, Daniel Imeokparia, John B. Horstman, Robert A. Kirchhoff, Kyung W. Suh
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Patent number: 6787575Abstract: The invention relates to the technological sector of mineral fillers used in the sector which manufactures polyurethane foams and in particular fillers of the carbonate, hydroxide, silicate, sulphate type and similar mineral fillers. The invention relates in particular to a method of treating mineral fillers of a specific grain size with the aid of treatment agents of the organic phosphate type, incorporating a de-agglomeration step, and optionally a selection step, with a view to improving the techniques used to manufacture polyurethane foams either by foaming without an auxiliary blowing agent or with a blowing agent such as CO2, and composite polyurethane, whilst reducing the time needed to mix this treated filler treated with the polyol and other reagents. Numerous applications for block foams or moulded foams, for mattresses and similar, the automotive industry, various industrial components, etc . . .Type: GrantFiled: May 14, 2001Date of Patent: September 7, 2004Assignee: Omya SAInventors: Jean Pierre Fichou, Maurice Husson, Georges Ravet, Pierre Blanchard
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Patent number: 6777454Abstract: This invention relates to a process of preparing vesiculated granules of crosslinked carboxylated polyester resin utilising a particular class of non-alkylphenolethoxylate surfactant.Type: GrantFiled: June 28, 2002Date of Patent: August 17, 2004Assignee: Orica Australia Pty Ltd.Inventors: Philip J. A. Ritchie, Algirdas K. Serelis
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Treated mineral fillers suspensions of these fillers in polyols and their uses in polyurethane foams
Patent number: 6765032Abstract: Method for the treatment of mineral fillers using organic phosphate treatment agents. Treated mineral fillers obtained by said method and suspension of these treated mineral fillers in polyols. Use of these suspensions in the manufacture of flexible, semirigid, or rigid polyurethane foams used for the manufacture of molded or nonmolded objects.Type: GrantFiled: December 13, 2002Date of Patent: July 20, 2004Assignee: Omya S.A.Inventors: Jean-Pierre Fichou, Maurice Husson, Georges Ravet, Pierre Blanchard -
Patent number: 6753356Abstract: Use as foaming agents having a low environmental impact of azeotropic or near azeotropic compositions using difluoromethoxy-bis(difluoromethyl ether) and/or 1-difluoromethoxy-1,1,2,2-tetrafluoroethyl difluoromethyl ether.Type: GrantFiled: August 16, 1999Date of Patent: June 22, 2004Assignee: Ausimont S.p.A.Inventors: Ezio Musso, Giampiero Basile, Sauro Girolomoni
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Patent number: 6750265Abstract: A prepolymer composition for producing polyurethane insulating foams with fire-retardant properties 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 the prepolymer component is substantially halogenfree and has 5 to 40 wt %, based on the prepolymer component, of softening phosphates and/or phosphonates with the formulae O═P(OR3 and O═P(OR)2R.Type: GrantFiled: November 10, 1999Date of Patent: June 15, 2004Inventors: Mathias Pauls, Rene Schumacher
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Patent number: 6660781Abstract: A process for preparing a polyurethane foam, especially according to the one-shot foaming process the quasi-prepolymer process and the prepolymer process, by reactions between a polyisocyanate and an active hydrogen-containing component including water and an organic polyol wherein said reactions are conducted in the presence of a reaction product formed by reaction between a tertiary amnine and an aryloxy substituted carboxylic acid.Type: GrantFiled: January 5, 1999Date of Patent: December 9, 2003Assignee: Witco CorporationInventors: Hassan El Ghobary, Louis Muller
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Patent number: 6642283Abstract: Polyurethane article black colorants which comprise a novel blue polymeric anthraquinone colorant, rather than the previous standard polymeric triphenylmethane blue-type colorants are provided. Such a novel blend of colorants to produce black colorations within the target polyurethane foams exhibits very low color degradation within polyurethane foams, primarily due to the stability and resiliency of the novel anthraquinone-based polymeric colorant in the presence of high isocyanate levels, as well as large amounts of reactive tertiary amines (from catalyst residue, for example). A black colorant comprising such a novel blue polymeric colorant, as well as polyurethane foams comprising such a novel black coloring agent and methods of producing such foams are all contemplated within this invention.Type: GrantFiled: October 26, 2001Date of Patent: November 4, 2003Assignee: Milliken & CompanyInventors: Mark E. Ragsdale, Sandy G. Belue
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Patent number: 6617365Abstract: The invention relates to the use of silicone-polyether copolymers of the formula I as surface-active substances in the production of polyurethane foams.Type: GrantFiled: November 29, 2000Date of Patent: September 9, 2003Assignee: Goldschmidt AGInventors: Georg Burkhart, Georg Feldmann-Krane, Ingo Fleute-Schlachter, Andreas Weier
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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: 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: 6525107Abstract: Novel acid-blocked amine catalysts and their use in the preparation of polyurethanes. The acid-blocked amine catalysts have the general structure shown below: wherein A is the residue of an organic acid anhydride; R1 is H or C1 to C6 alkyl; R2 is H or C1 to C6 alkyl; n is an integer of 0 to 10; and B is a compound containing a protonated amine and one or more primary amine, secondary amine, or tertiary amine groups.Type: GrantFiled: June 18, 2002Date of Patent: February 25, 2003Assignee: Air Products and Chemicals, Inc.Inventors: Stephan Herman Wendel, Reza Fard-Aghaie
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Publication number: 20030032688Abstract: A method for producing a rigid foamed synthetic resin, which comprises reacting a polyol with a polyisocyanate compound in the presence of water, a catalyst and a fluorine-containing compound of the formula 1:Type: ApplicationFiled: July 18, 2002Publication date: February 13, 2003Applicant: Asahi Glass Company, LimitedInventors: Hiromichi Hotta, Hisashi Sato, Tadanobu Kuroki, Genichirou Enna
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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: 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: 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: 6391933Abstract: Method of making substantially windowless open-celled polyurethane foams which have superior wiping properties is disclosed. The ingredients for making such foams comprise: a polyol, catalyst, silicon stabilizer, blowing agent, toluene diisocyananate and cell-openers and/or surfactants.Type: GrantFiled: October 13, 1999Date of Patent: May 21, 2002Assignee: Magla World Wide, L.L.C.Inventor: Henry Mattesky
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Patent number: 6359022Abstract: Disclosed are aromatic polyester polyols, polyol based resin blends, and rigid closed-cell polyisocyanate-based foams made using the polyol based resin blends. The resin blends generally comprise: (a) an aromatic polyester polyol reaction product formed by inter-esterification of a phthalic acid based material; a hydroxylated material having a functionality of at least 2; and a hydrophobic material; and (b) a C4-C7 hydrocarbon blowing agent. Also disclosed is a method for preparing rigid closed-cell polyisocyanate-based foams comprising reacting a polyisocyanate and a polyol based resin blend.Type: GrantFiled: April 9, 1999Date of Patent: March 19, 2002Assignee: Stepan CompanyInventors: F. Leo Hickey, Kevin L. Rooney
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Patent number: 6346558Abstract: A polyester polyol composition comprising a phthalic anhydride-initiated polyester polyol, a C4-C6 hydrocarbon blowing agent, and an alkylene oxide modified silicone glycol compatibilizing agent having an HLB of from about 5 to about 8 is disclosed. 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. An alkylene oxide and isocyanate modified silicone glycol compatibilizing agent is also disclosed.Type: GrantFiled: August 7, 2001Date of Patent: February 12, 2002Assignee: BASF CorporationInventors: David D. Peters, Robert E. Riley, Jimmy L. Patterson, Anthony G. Schaefer
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Publication number: 20020010224Abstract: 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: ApplicationFiled: February 5, 1999Publication date: January 24, 2002Inventors: JOE C. WILSON, JIMMY L. PATTERSON, JAMES S. DAILEY, WALTER R. WHITE
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Patent number: 6340715Abstract: The invention provides a pressurized container for providing insulating foams including a foamable composition adapted for delivery from pressure cans and on the basis of an aqueous plastic dispersion, which comprises an aqueous dispersion of at least one film forming plastic with a content of 30 to 80% by weight of film forming aqueous plastic dispersion, a blowing gas in an amount equal to 3 to 25% of the weight of the total composition, and at least one anionic foam stabilizer for stabilizing the foams and emulsifying the blowing gas in the aqueous plastic dispersion in an amount equal to 0.3 to 6% of the weight of the total composition. The foamed compositions are able to be employed as sealing, caulking and insulating materials.Type: GrantFiled: May 16, 2000Date of Patent: January 22, 2002Assignee: Rather AGInventor: Heinrich Sommer
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Patent number: 6294107Abstract: A polyester polyol composition comprising a phthalic anhydride-initiated polyester polyol, a C4-C6 hydrocarbon blowing agent, and an alkylene oxide modified silicone glycol compatibilizing agent having an HLB of from about 5 to about 8 is disclosed. 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. An alkylene oxide and isocyanate modified silicone glycol compatibilizing agent is also disclosed.Type: GrantFiled: July 26, 2000Date of Patent: September 25, 2001Assignee: BASF CorporationInventors: David D. Peters, Robert E. Riley, Jimmy L. Patterson, Anthony G. Schaefer
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Patent number: 6271277Abstract: Process for preparing a flexible foam by reacting a prepolymer having an NCO value of 3-15% by weight, which is the reaction product obtained by reacting an excessive amount of a polyisocyanate with a polyether polyol or a mixture of such polyols, said polyol or mixture having an average nominal hydroxyl functionality of from 2 to 6, an average hydroxyl equivalent weight of from 500 to 5000 and an oxyethylene content of at least 50% by weight, with water, the amount of water being 15-500 parts by weight per 100 parts by weight of prepolymer, at the start of the reaction the temperature of the prepolymer being 10-50° C. and the temperature of the water being 10-50° C. higher than the temperature of the prepolymer and a process for preparing a flexible foam by reacting the above prepolymer with water in the presence of a superabsorbent polymer.Type: GrantFiled: December 14, 1998Date of Patent: August 7, 2001Assignee: Imperial Chemical Industries PLCInventors: Gerhard Jozef Bleys, Dirk Gerber, Viviane Gertrude Johanna Neyens
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Patent number: 6271274Abstract: An open-cell polyisocyanurate foam for fixing and supporting plants, which is prepared from an aromatic isocyanate, a hydroxyl compound having an average number of functional groups of 1.0 or above and an oxyethylene content of 20 wt % or above, an isocyanuration catalyst and a silicone foam stabilizer consisting of a polysiloxyane/polyoxyalkylene copolymer wherein the terminal OH group of the polyether segment is capped with a compound not having any other active hydrogen atom and oxyethylene units are contained in an amount of 30 wt % or above, and which exhibits a density of 8 to 70 kg/m3, an open cell content of 98% or above, a hardness of 0.1 to 2.Type: GrantFiled: May 3, 1999Date of Patent: August 7, 2001Assignee: Toyo Quality One CorporationInventor: Yoko Sano
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Publication number: 20010011107Abstract: Use as foaming agents having a low environmental impact of azeotropic or near azeotropic compositions using difluoromethoxy-bis(difluoromethyl ether) and/or 1-difluroromethoxy-1,1,2,2-tetrafluoroethyl difluoromethyl ether.Type: ApplicationFiled: August 16, 1999Publication date: August 2, 2001Inventors: EZIO MUSSO, GIAMPIERO BASILE, SAURO GIROLOMONI
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Patent number: 6268402Abstract: A process for producing a rigid foam based on isocyanate comprises reacting an organic and/or modified organic polyisocyanate with a polyol composition and, optionally, a relatively low molecular weight chain extender or crosslinker in the presence of a catalyst, and, optionally, further auxiliaries and/or additives, wherein the polyol composition comprises a phthalic anhydride-initiated polyester polyol, a blowing agent comprising C4-C6 hydrocarbon, and a fatty acid or fatty alcohol ethoxylate compatibilizing agent. 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: July 31, 2001Assignee: BASF CorporationInventors: Joe C. Wilson, Jimmy L. Patterson, James S. Dailey, Walter R. White, III, Robert E. Riley
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Patent number: 6262136Abstract: An isocyanate-reactive composition containing a blowing agent that is generally a gas at ambient temperature and pressure which is storage stable is produced by including a phenol or alkylphenol having at least one phenolic hydroxyl group in the isocyanate-reactive composition in an amount sufficient to promote the solubility of the blowing agent. The isocyanate-reactive composition may be stored at ambient conditions rather than under pressure. The isocyanate-reactive composition containing blowing agent may be used to produce foams having good physical properties after storage at ambient temperature and pressure for periods as long as 3 months.Type: GrantFiled: May 26, 1999Date of Patent: July 17, 2001Assignee: Bayer CorporationInventor: Michael A. Dobransky
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Patent number: 6258866Abstract: Provided herein are subcombinations from which polyurethane foams and polyurethane foams containing polyisocyanurates may be prepared. The subcombinations are unique in that they contain components which synergistically act towards promoting compatibility between a blowing agent and the remaining components of the formulation. Through the use of the teachings herein, blowing agent concentrations in excess of 25% by weight of the total subcombination may be incorporated.Type: GrantFiled: January 31, 2000Date of Patent: July 10, 2001Assignee: Huntsman Petrochemical CorporationInventor: Frank C. Kohoutek
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Patent number: 6245826Abstract: An isocyanate-based rigid foam comprising the reaction product of an organic and/or modified organic polyisocyanate, a resin blend and, optionally, a relatively low molecular weight chain extender or crosslinker in the presence of a catalyst, and, optionally, further auxiliaries and/or additives, wherein the resin blend comprises a phthalic anhydride-initiated polyester polyol, a blowing agent comprising a C4-C6 hydrocarbon, and a fatty acid or fatty alcohol ethoxylate compatibilizing agent. 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: June 12, 2001Assignee: BASF CorporationInventors: Joe C. Wilson, Jimmy L. Patterson, James S. Dailey, Walter R. White, III, Robert E. Riley