Ingredient Contains A -c-xh Group Wherein X Is A Chalcogen Atom And The Carbon Atom Is Not Double-bonded To A Chalcogen Atom, Phenol, Etc. Patents (Class 521/117)
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Patent number: 8093309Abstract: A foam includes a white color that is suitable for use in marine flotation devices. The foam includes a methylene diphenyl diisocyanate and polymethylene diphenyl diisocyanate. In some embodiments, the foam also includes a polyol, surfactant, catalyst, and blowing agent.Type: GrantFiled: July 24, 2007Date of Patent: January 10, 2012Assignee: Huntsman Petrochemical LLCInventors: Ernest L. Rister, Jr., Alan J. Hamilton, Richard R. Romero
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Publication number: 20110319510Abstract: A silicone rubber sponge-forming emulsion composition is provided that, even when the quantity of reinforcing silica filler is increased, does not exhibit a decline in emulsion stability, avoids defects in cell morphology of the sponge, and avoids a substantial increase in hardness of the sponge. A method of producing a silicone rubber sponge from this composition is also provided. The A silicone rubber sponge-forming emulsion composition comprises (A) 100 weight parts of a liquid diorganopolysiloxane that has at least two silicon-bonded alkenyl groups in each molecule, (B) 1 to 50 weight parts of a reinforcing silica filler comprising (b1) a fumed silica and (b2) a precipitated silica in a (b1)/(b2) weight ratio of 0.01/1 to 30/1, (C) 50 to 250 weight parts of water that contains (c) a smectite clay, (D) 0.Type: ApplicationFiled: December 24, 2009Publication date: December 29, 2011Inventors: Kota Tsuchiyama, Shinya Shirasaki, Mitsuo Hamada
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Publication number: 20110303867Abstract: The present invention relates to poured-in place polyurethane foams and polyol premixes comprising 1-chloro-3,3,3-trifluoropropene (HFCO-1233zd) and one or more additional co-blowing agents.Type: ApplicationFiled: July 26, 2011Publication date: December 15, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Yiu Keung Ling, David J. Williams
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Patent number: 8030366Abstract: The invention relates to the use of polyethers containing urethane or urea groups as foam stabilizers, obtained by reacting at least one isocyanate with (a) at least one hydrophilic polyether which statistically carries at least one OH and/or NH2 and/or NH function and (b) at least one hydrophobic polyether which statistically carries at least one OH and/or NH2 and/or NH function and optionally (c) further compounds which carry at least one OH and/or NH2 and/or NH function and/or other isocyanate-reactive groups, such as carboxyl or epoxide functions, with the proviso that at least one isocyanate is ?difunctional.Type: GrantFiled: September 6, 2007Date of Patent: October 4, 2011Assignee: Evonik Goldschmidt GmbHInventors: Michael Ferenz, Christian Eilbracht, Jutta Esselborn, Sascha Herrwerth, Gabriele Platte
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Publication number: 20110224319Abstract: The invention relates to a foamable mixture which contains at least one alkoxysilane-terminated prepolymer and which can be produced of a) at least one alkoxysilane that was functionalized with isocyanate groups and that can be produced of at least one hydroxyfunctional and/or aminofunctional alkoxysilane and at least one diisocyanate or polyisocyanate, and b) at least one compound that contains at least one OH group, and at least one blowing agent, characterized in that the foamable mixture has a dynamic viscosity of 100 to 25,000 mPas, preferably 500 to 10,000 mPas, at 23° C. The invention further relates to a method for producing said foamable mixture. The foamable mixtures according to the invention are suitable for sealing, insulating and mounting joints, roof surfaces, windows and doors or for filling hollow spaces.Type: ApplicationFiled: January 20, 2011Publication date: September 15, 2011Applicant: Henkel AG & Co. KGaAInventors: Wilfried Huebner, Milan Sebestian, Christiane Kunze, Lars Zander, Johann Klein
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Publication number: 20110218261Abstract: Foam-forming compositions containing azeotropic or azeotrope-like mixtures containing cis-1,1,1,4,4,4-hexafluoro-2-butene are disclosed. The foam-forming composition contains (a) an azeotropic or azeotrope-like mixture of cis-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, pentane, isopentane, cyclopentane, HFC-245fa, or dimethoxymethane; and (b) an active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.Type: ApplicationFiled: December 17, 2008Publication date: September 8, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Gary Loh, Joseph Anthony Creazzo
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Publication number: 20110124257Abstract: A phenolic foam is made by foaming and curing a formable phenolic resin composition that comprises a phenolic resin, a blowing agent, an acid catalyst and an inorganic filler. The blowing agent comprises a blend of chlorinated aliphatic hydrocarbon containing 2 to 5 carbon atoms and an aliphatic hydrocarbon containing from 3 to 6 carbon atoms mixed in a ratio of 60/40 to 95/5 parts by weight. The inorganic filler is at least one selected from a metal hydroxide, a metal oxide, a metal carbonate and metal powder. The phenolic foam has a pH of 5 or more and a water uptake less than 1 kg/m2. A phenolic foam with a higher pH value compared with conventional phenolic foam reduces corrosion risk when in contact with metallic materials. The phenolic foam maintains excellent long-term stable thermal insulation performance, low water uptake and fire resistance performance and by using the said blowing agent, does not harm the environment as an ozone or global warming depleting material.Type: ApplicationFiled: September 8, 2006Publication date: May 26, 2011Applicant: KINGSPAN HOLDINGS LIMITEDInventors: Vincent Coppock, Ruud Zeggelaar, Hiroo Takahashi, Toshiyuki Kato
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Publication number: 20110086409Abstract: A method for making a surfactant-based monolithic column is provided. The method comprises providing a mixture comprising at least one surfactant monomer, at least one crosslinker, at least one initiator, and at least one porogen and polymerizing the mixture to form the surfactant-based monolithic column. The present disclosure also provides a surfactant-based monolithic column, a method for separating molecules, and a process for preparing a surfactant monomer.Type: ApplicationFiled: March 30, 2009Publication date: April 14, 2011Inventors: Shahab Ahmed Shamsi, Jun He, Congying Gu
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Publication number: 20110065821Abstract: A method is disclosed for making a polyol comprising: fully-epoxidizing a partially hydrogenated vegetable oil to obtain a fully-epoxidized vegetable oil derivative having an iodine value less than 4 g I2/100 gram, an EOC of from 4.0 to 5.7% and a Gardner color value of 2 or less; and then reacting the fully-epoxidized vegetable oil derivative with a ring opener to form a polyol having a hydroxyl number from 40 to 80 mg KOH/gram, a number average molecular weight of at least 1500 Daltons, a dynamic viscosity less than 10 pascal-seconds, and an EOC below 3.0 wt %.Type: ApplicationFiled: May 13, 2009Publication date: March 17, 2011Applicant: Cargill, IncorporatedInventors: Timothy W. Abraham, William C. Gower
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Patent number: 7872055Abstract: A method for preparing a water blown, low density, rigid polyurethane foam which comprises contacting at least one polyisocyanate with at least one polyol, at an Isocyanate Index of 70 to 200, in the presence of a blowing agent composition comprising at least 75 wt % water and an effective amount of a catalyst composition comprising a gelling catalyst which is bis-(N,N-dimethylaminopropyl)amine and a blowing catalyst which is N,N-dimethylaminoethyl-N?-methyl-ethanolamine, the foam having a density of 6 to 16 Kg/m3.Type: GrantFiled: December 11, 2008Date of Patent: January 18, 2011Assignee: Air Products and Chenicals, Inc.Inventors: Juan Jesus Burdeniuc, Gary Dale Andrew
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Publication number: 20100305227Abstract: The invention relates generally to protein-containing polyurethane foams, methods and compositions for making the polyurethane foams, and articles comprising the polyurethane foams.Type: ApplicationFiled: March 8, 2010Publication date: December 2, 2010Inventors: Anthony A. Parker, Joseph J. Marcinko
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Patent number: 7842349Abstract: Sprayable polyurethane compositions contain particulate filler in both polyol and isocyanate components for a total content of minimally 30 weight percent of particulate filler and fibrous reinforcement. The isocyanate component is stable with respect to storage, and composite structures prepared therefrom exhibit high modulus and can be used as replacements for unsaturated polyester systems. Resin transfer molding systems employ the same components and produce molded parts with good physical properties.Type: GrantFiled: October 11, 2007Date of Patent: November 30, 2010Assignee: TSE Industries, Inc.Inventor: Robert Michael Raday
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Publication number: 20100216903Abstract: An isocyanate-reactive composition containing a blowing agent that includes HFC 134a and water characterized by a vapor pressure which is lower than that of comparable compositions which do not include the stabilizing composition of the present invention. The stabilizing composition of the present invention includes an ethoxylated nonylphenol and propylene carbonate. This stabilizing composition is included 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 and may be hand mixed with an isocyanate to produce a foam. The isocyanate-reactive composition containing blowing agent of the present invention 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: ApplicationFiled: February 20, 2009Publication date: August 26, 2010Applicant: Bayer MaterialScience LLCInventor: Michael A. Dobransky
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Publication number: 20100154146Abstract: Compositions, methods, apparatuses, kits, and combinations are described for permanently or temporarily re-designing, decorating, and/or re-coloring a surface. The compositions useful in the present disclosure include a décor product that is formulated to be applied and affixed to a surface. If desired, the décor product may be substantially removed from the surface before being affixed thereto. If a user desires to remove the décor product, the décor product is formulated to be removed by a number of methods including, for example, vacuuming, wet extraction, chemical application, and the like. If the user desires to affix the décor product to the surface in a permanent or semi-permanent manner, the décor product may be affixed to the surface by applying energy thereto in the form of, for example, heat, pressure, emitted waves, an emitted electrical field, a magnetic field, and/or a chemical.Type: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Applicant: S.C. JOHNSON & SON, INC.Inventors: Ketan N. SHAH, Glenn R. Frazee, James F. Kimball, Paul A. Clark, Russell O. Carlson
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Publication number: 20100116829Abstract: PIR rigid foams are produced from a polyisocyanate component and a polyol component that includes at least one polyester polyol and at least one polyether polyol. The polyisocyanate and polyol components are reacted in amounts such that the volume ratio of polyisocyanate component to polyol component is from 100:100 to 100:110 and the index is from 100 to 400. These foams are characterized by good adhesion to a substrate and impermeability to water vapor. The foams are generally produced by a casting process and are particularly useful as an insulating material for containers and tanks.Type: ApplicationFiled: November 4, 2009Publication date: May 13, 2010Applicant: Bayer MaterialScience AGInventors: Allard Van Der Wal, Marcel B. Haak
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Patent number: 7714030Abstract: Polyurethane foams are made and attached to a substrate having an open cavity, but reacting a polyisocyanate component and a polyol component in the presence of a blowing agent. The polyisocyanate component includes at least one isocyanate-terminated, oxazolidone-containing intermediate. This process allows for very fast curing, good quality, adherent foams to be produced on, for example, vehicle parts and assemblies, for acoustical or vibration dampening and for structural reinforcement.Type: GrantFiled: April 12, 2006Date of Patent: May 11, 2010Assignee: Dow Global Technologies Inc.Inventors: Huzeir Lekovic, Frank V. Billotto
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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: 20100022675Abstract: A method for manufacturing a carpet material that typically includes applying a coating to a substrate where the coating includes the reaction product of a B-side that includes an esterified vegetable oil-based polyol and a catalyst and an A-side that includes an isocyanate and the reaction product of a B-side that includes a vegetable oil-based polyol and a catalyst and an A-side that includes an isocyanate. The polyols may optionally be blown, oxylated, and/or neutralized.Type: ApplicationFiled: September 29, 2009Publication date: January 28, 2010Inventors: Thomas M. Kurth, Richard A. Kurth, Robert B. Turner, Les P. Kreifels
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Publication number: 20090326088Abstract: A foam material is made through a spray process by combining a polyol with a pre-reacted isocyanate. The pre-reacted isocyanate contains an isocyanate pre-reacted with a prefoaming agent, such as a second polyol. The second polyol might be the same or different than the first polyol. Once combined in the presence of a blowing agent, the polyol and the pre-reacted isocyanate form a foam material, such as a polyurethane foam. The foam material is particularly well suited for insulating surfaces. In one embodiment, for instance, the foam is formed and applied on site.Type: ApplicationFiled: June 18, 2009Publication date: December 31, 2009Applicant: Elastochem Specialty Chemicals Inc.Inventor: Salvatore A. DiLoreto
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Publication number: 20090312446Abstract: A foam includes a white color that is suitable for use in marine flotation devices. The foam includes a methylene diphenyl diisocyanate and polymethylene diphenyl diisocyanate. In some embodiments, the foam also includes a polyol, surfactant, catalyst, and blowing agent.Type: ApplicationFiled: July 24, 2007Publication date: December 17, 2009Applicant: Huntsman Petrochemical CorporationInventors: Ernest L. Rister, Alan J. Hamilton, Richard R. Romero
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Patent number: 7619014Abstract: A rigid polyurethane foam having lose density without an increased k-factor can be produced by adding small amounts of butyl alcohol to a polyurethane composition containing an isocyanate, at least one polyol, a catalyst and a gaseous blowing agent.Type: GrantFiled: May 23, 2002Date of Patent: November 17, 2009Assignee: Bayer MaterialScience LLCInventors: Steven L. Schilling, Edward E. Ball
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Publication number: 20090239964Abstract: To provide a process for producing a flexible polyurethane foam, which can suitably form a flexible polyurethane foam having a good cushioning characteristic by using a raw material derived from a natural fat/oil. The process comprises a step of reacting a polyoxyalkylene polyol (A) containing the first polyoxyalkylene polyol (A1) obtained by ring-opening polymerization of an alkylene oxide (c) with an initiator (b) in the presence of a polymerization catalyst (a), with a polyisocyanate compound (B) in the presence of a catalyst (C) and a blowing agent (D).Type: ApplicationFiled: March 27, 2009Publication date: September 24, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takayuki SASAKI, Naohiro Kumagai, Yasuyuki Sasao, Shigeru Ikai, Chitoshi Suzuki
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Patent number: 7431794Abstract: A process for producing a leather-like sheet, wherein a skin-like layer composed of a resin composition (C) is formed on top of a fibrous substrate (E), comprising; heating and melting a moisture-curable polyurethane hot-melt resin composition (C) which contains a hot-melt urethane prepolymer (A) having isocyanate groups at molecular terminal ends and a colorant (B), and applying said heated and melted resin composition (C) to either [1] a releasable substrate (D) and then bonding the coated surface to a fibrous substrate (E), or [2] a fibrous substrate (E) and then bonding the coated surface to a releasable substrate (D); wherein the colorant (B) contains a polyol with a number average molecular weight within a range from 1,000 to 20,000 as a vehicle (B-1), and a pigment (B-2).Type: GrantFiled: February 23, 2005Date of Patent: October 7, 2008Assignees: Dainippon Ink and Chemicals, Inc., Kuraray Co., Ltd.Inventors: Yoshinori Kanagawa, Toshio Niwa, Toshifumi Tamaki, Hisao Yoneda
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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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Patent number: 7393879Abstract: A method for producing a novel silicone foam by reaction of a polyisocyanate with a silicone oligomer having a plurality of functional end groups with active hydrogens, optionally in the presence of fire-retardants, under foam forming conditions which creates a new silicone foam for use in items such as residential upholstered furniture industry, seat cushions and bedding etc., and specifically for use in applications that require, high resilience and fire-retardant properties such as aircraft and surface transportation seat cushioning, military and shipboard mattresses etc.Type: GrantFiled: June 6, 2002Date of Patent: July 1, 2008Assignee: Chestnut Ridge Foam, Inc.Inventors: Jiri E. Kresta, David Munoz Rojas, Ramon Moliner, Chandrasiri Jayakody, Dan Myers
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Patent number: 7288211Abstract: The invention relates to the addition of ?-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: January 24, 2003Date of Patent: October 30, 2007Assignee: Honeywell International 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: 7262227Abstract: The present invention relates to a process for producing a synthetic resin foam which comprises reacting at least one polyol with at least one polyisocyanate compound in the presence of an organic blowing agent, wherein the organic blowing agent is a blowing agent for synthetic resin foams which is characterized by being a mixture comprising 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and at least one halogen-containing compound and optionally containing at least one member selected from the group consisting of glycol compounds and amide compounds. Also provided are: a premix comprising the blowing agent and a polyol mixture; and a process for producing a synthetic resin foam from these.Type: GrantFiled: April 25, 2003Date of Patent: August 28, 2007Assignee: Daikin Industries, Ltd.Inventors: Takashi Shibanuma, Noriaki Shibata
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Patent number: 7230037Abstract: The present invention relates to a method for the continuous mixing of at least one polyol component and at least one isocyanate component and optionally additives to form a polyurethane reaction mixture in a stirrer mixer with an axially conveying stirrer.Type: GrantFiled: September 5, 2003Date of Patent: June 12, 2007Assignee: Hennecke GmbHInventors: Hans-Michael Sulzbach, Reiner Raffel, Jürgen Wirth, Wolfgang Pawlik, Florian Thiebes, Lothar Röhrig
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Patent number: 7183331Abstract: 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: GrantFiled: February 19, 2004Date of Patent: February 27, 2007Assignee: Tosoh CorporationInventors: Hiroyuki Kiso, Katsumi Tokumoto, Yutaka Tamano
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Patent number: 7169339Abstract: The invention relates to an improved method for producing foamed material, especially poly(meth)acrylimide foams, which are foamed from polymer plates produced according to the casting method. The two-step method consists of a pre-heating step and at least one foaming step. The product obtained has a significantly smaller compressive strain, measured according to DIN 53425(ASMD 621), than prior art products.Type: GrantFiled: August 1, 2002Date of Patent: January 30, 2007Assignee: Roehm GmbH & Co. KGInventors: Peter Stein, Hermann Seibert, Leonard Maier, Rainer Zimmermann, Wilfried Heberer, Werner Geyer
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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: 7074880Abstract: A preparation process of polyimide aerogels that composed of aromatic dianhydrides and aromatic diamines or a combined aromatic and aliphatic diamines is described. Also descried is a process to produce carbon aerogels derived from polyimide aerogel composed of a rigid aromatic diamine and an aromatic dianhydride. Finally, the processes to produce carbon aerogels or xerogel-aerogel hybrid, both of which impregnated with highly dispersed transition metal clusters, and metal carbide aerogels, deriving from the polyimide aerogels composed of a rigid aromatic diamine and an aromatic dianhydride, are described. The polyimide aerogels and the polyimide aerogel derivatives consist of interconnecting mesopores with average pore size at 10 to 30 nm and a mono-dispersed pore size distribution. The gel density could be as low as 0.008 g/cc and accessible surface area as high as 1300 m2/g.Type: GrantFiled: July 22, 2003Date of Patent: July 11, 2006Assignee: Aspen Aerogels, Inc.Inventors: Wendell Rhine, Jing Wang, Redouane Begag
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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: 6903149Abstract: The present invention provides a composition for wood-polymer composites containing a thermoplastic resin, wood flour and a polyol ester compound having not less than one hydroxyl group esterified with fatty acid, and a wood-polymer composite made from this composition. According to the present invention, a wood-polymer composite having well-balanced mechanical strength and processability, as compared to products made from lumber alone and products made from thermoplastic resin alone, and a composition for wood-polymer composites therefor can be provided.Type: GrantFiled: July 11, 2002Date of Patent: June 7, 2005Assignee: Ajinomoto Co., Inc.Inventors: Naoki Yasuda, Haruo Nemoto
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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: 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: 6855741Abstract: A plasticizer with a crosslinking/chain extending agent is incorporated into a water-blown flexible polyurethane foam formulation to provide acceptable softness, openness, and tensile strength characteristics. The class of plastisizers is selected from the group consisting of alkyl benzyl phthalates, phosphate esters and benzoates. The aromatic polyhydroxy compounds are a preferred class of crosslinking/chain extending agents, particularly dihydroxyaromatic compounds, more particularly resorcinol. Other classes of preferred crosslinking/extending agents are saccharides, alkyl glycosides, and alkylene oxide adducts of aliphatic triols. Other preferred crosslinker/extenders include epoxidized soybean oil, polymeric 1,3,5-trimethyl, 2-hydroxy-benzene, selected phenolic resins, selected low molecular weight adducts of a polyfunctional aliphatic amines, and polyoxyalkylene polyols wherein the hydroxyl number is less than about 200 and the average number of hydroxyl groups range from about 3 to about 8.Type: GrantFiled: May 13, 2003Date of Patent: February 15, 2005Assignee: Ferro CorporationInventors: Kevin D. Wiese, Angela M. Knickmeyer
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Patent number: 6818674Abstract: There are disclosed an elastic member which comprises (A) polyurethane foam obtained by agitationally mixing a foaming agent, a foam stabiizer and a urethane prepolymer synthesized from a polyol and a polyisocyanate in the presence of a modified silicone, or (B) polyurethane foam obtained by agitationally mixing a polyol, a polyisocyanate, a modified silicone oil bearing a functional group reactive with a polyisocyanate, a foaming agent and a foam stabiizer comprising a polyether modified silicone containing 50 to 100% by weight of a polyoxyethylene unit in the polyether moiety; image formation equipment equipped with the above elastic member; and a toner supply roller which is composed of a foamed elastic member mounted on a developing apparatus and which has a compression spring constant in the range of 0.25 to 5.0 N/mm and a surface friction resistance in the range of 0.4 to 1.2 N.Type: GrantFiled: November 6, 2001Date of Patent: November 16, 2004Assignee: Bridgestone CorporationInventors: Junji Sakata, Hirotaka Yamazaki
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Patent number: 6790820Abstract: 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: GrantFiled: June 3, 2002Date of Patent: September 14, 2004Assignee: Honeywell International, Inc.Inventors: Mary C. Bogdan, Gary M. Knopeck, Hang T. Pham, Rajiv R. Singh, Kane D. Cook
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Patent number: 6790871Abstract: A flexible isocyanate-based polymeric foam which has: (i) low resiliency; (ii) a Tg less than or equal to about 0° C.; and (iii) a change in tan &dgr; less than or equal to about 35% from a median value measured over a temperature range of from about −20° to about +60° C. The foam may be produced using a formulation comprising selected plasticizers as set in the disclosure. The subject foam is less temperature sensitive than currently known low resilience, flexible polyurethane foams. Thus, the present foam finds many applications such as for use in the interior of a vehicle where energy dissipation of the foam is important over a relatively wide temperature range—e.g., −20° to +60° C.Type: GrantFiled: November 13, 2000Date of Patent: September 14, 2004Assignee: Woodbridge Foam CorporationInventors: Paul V. Farkas, Liberato V. Mendoza, Romeo Stanciu, Jeffrey D. van Heumen
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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: 6777456Abstract: 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: GrantFiled: July 2, 2002Date of Patent: August 17, 2004Assignee: Tosoh CorporationInventors: Hiroyuki Kiso, Katsumi Tokumoto, Yutaka Tamano
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Patent number: 6777382Abstract: 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: GrantFiled: June 3, 2002Date of Patent: August 17, 2004Assignee: Honeywell International Inc.Inventors: Mary C. Bogdan, Kane D. Cook, Hang T. Pham, Gary M. Knopeck, Rajiv R. Singh
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Patent number: 6767929Abstract: A catalyst for producing a polyurethane, comprising a dialkylaminoalkyl alcohol represented by the formula (I): R1R2N—X—OH (I) wherein each of R1 and R2 is independently an alkyl group having 1 to 4 carbon atoms; and X is a branched alkylene group having 4 to 8 carbon atoms; a process for producing a polyurethane, comprising reacting a polyol component with an isocyanate component in the presence of the above-mentioned catalyst for producing a polyurethane; and a process for producing a polyurethane foam, comprising reacting a polyol component with an isocyanate component in the presence of the above-mentioned catalyst for producing a polyurethane, and a compound having a primary amino group and a tertiary amino group in its molecule, and a blowing agent.Type: GrantFiled: June 17, 2002Date of Patent: July 27, 2004Assignee: Kao CorporationInventors: Atsushi Ishikawa, Mitsuru Sakai, Masayoshi Morii
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Publication number: 20040143027Abstract: In the process of the present invention, an organic polyisocyanate is reacted with a sorbitol-based polyether polyol having a number average molecular weight of from about 400 to about 1500, in the presence of a pentafluoropropane blowing agent, and a catalyst.Type: ApplicationFiled: January 22, 2003Publication date: July 22, 2004Inventors: Steven L. Schilling, Edward E. Ball, Kevin J. Elsken
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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 -
Publication number: 20040132846Abstract: Cross-linked sol-gel like materials and cross-linked aerogels, as well as methods for making such cross-linked sol-gel like materials and cross-linked aerogels are described.Type: ApplicationFiled: August 18, 2003Publication date: July 8, 2004Inventors: Nicholas Leventis, Chariklia Leventis
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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: 6676849Abstract: A scorch inhibitor composition for use an additive in the manufacture of polyurethane foams is based on a derivatized phenol, 4-tertbutyl catechol, and optionally, phenothiazine. The derivatized phenol is a di-tert-butyl phenol, preferably a 2,6 tert-butyl phenol substituted at least at the 4-position with an aliphatic, aromatic or aliphatic-aromatic moiety, of C2 or greater. Preferably, the phenol is a liquid, and is chosen from among 2,6 di-tert-butyl-4-isobutyl phenol; 2,6 di-tert-butyl-4-nonyl phenol; and benzenepropanoic acid, 3,5-bis (1,1-dimethyl-ethyl)-4-hydroxy-.C7-C9 branched alkyl esters. The phenol may optionally possess combinations of heteroatoms, such as O, N, P or S, and may be dimerized.Type: GrantFiled: March 11, 2003Date of Patent: January 13, 2004Assignee: R. T. Vanderbilt Company, Inc.Inventor: John Matthew DeMassa
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Patent number: 6670405Abstract: The invention relates to a method for producing block-shaped and plate-shaped polymethacrylimide foamed materials by copolymerizing methylacrylic acid and methylacryl nitrile, by subjecting the copolymerizate to a post-polymerization and cyclization in order to form polyimide, and by converting the same into a foamed material. The invention is characterized in that the copolymerization is carried out in the presence of a mixture containing at least three initiators with graduated half-life periods. The polymerization can be controlled especially well and yields polymerizate plates with thicknesses of up to 80 mm which can be easily foamed. The invention makes it possible to produce filling materials, especially plates and blocks containing electrically conductive particles.Type: GrantFiled: October 16, 2001Date of Patent: December 30, 2003Assignee: Roehm GmbH & CO KGInventors: Sabine Servaty, Werner Geyer, Norbert Rau, Manfred Krieg