Reactant Which Contains At Least Two -c-c(=x)-x-c Groups Has Been Derived From Only A Dicarboxylic Acid Or Derivative And Only A Dihydric Alcohol Or Alcoholate Derivative Patents (Class 528/83)
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Publication number: 20110092648Abstract: The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic.Type: ApplicationFiled: October 1, 2010Publication date: April 21, 2011Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Qiwei Lu, Donald A. Meltzer, Yona Eckstein
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Patent number: 7906607Abstract: It is an object of the present invention to provide an isocyanate group-terminated urethane prepolymer which has a low viscosity at melting and a process for producing the same, and an adhesive which comprises the urethane prepolymer. The invention relates to a process for producing an isocyanate group-terminated urethane prepolymer which comprises reacting polyols with a polyisocyanate compound, wherein the polyols comprise 10 to 50% by mass of a polyester polyol and 90 to 50% by mass of a polycarbonate polyol and wherein a sebacic acid-derived polyester polyol which is a polycondensate of sebacic acid with a diol compound accounts for 50 to 100% by mass of the polyester polyol and wherein the polyisocyanate compound and the polyols are reacted in such amounts that the ratio (by mol) of the isocyanate group/hydroxyl group is 1.2 to 3.2.Type: GrantFiled: October 22, 2007Date of Patent: March 15, 2011Assignee: Asahi Glass Company, LimitedInventors: Tomeyoshi Ohori, Hiroshi Wada
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Patent number: 7838617Abstract: Commercial spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4,4?-MDI and 2,4?-MDI, and an amount of chain extenders and chain terminators such that the polymer solution, prior to spinning, is highly soluble and has an appropriate pre-spun IV and primary amine content. Such spandex fibers, and the fabrics and garments comprising them, have good dyeability and colorfastness, as well as other desirable characteristics.Type: GrantFiled: November 3, 2004Date of Patent: November 23, 2010Assignee: INVISTA North America s.àr.l.Inventors: Nathan E. Houser, Gordon W. Selling, Beverly Jean Selle, Steven Peter Pardini, Robert Dewhurst, Elizabeth Todd Singewald
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Patent number: 7824739Abstract: The object of the present invention is to provide A method for producing a golf ball that is excellent In the durability of the mark, the adhesion of the paint Film and the productivity. In the present invention, since the curing agent contained in the paint covering the mark is used to cure the resin component forming the mark, there is no increase in the viscosity or the gellation of the ink for printing the mark, and thus the mark is printed well during the production of the golf ball.Type: GrantFiled: June 14, 2005Date of Patent: November 2, 2010Assignee: SRI Sports LimitedInventors: Koichi Fujisawa, Kazuhiko Isogawa, Yoshikazu Yabuki
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Patent number: 7786242Abstract: The ring-containing modified resin is represented by the following chemical formula (1) R1[—(—O—CO—NH—R2—NH—CO—O—R3—)p—O—R4]q??(1) (in the chemical formula (1), R1 is a dehydroxyl residue of a resin having a benzene ring and/or a condensed ring and hydroxyl group: —R2— is deisocyanate group derived from an organic diisocyanate: —R3— is a dehydroxyl residue of polyol having number-average molecular weight of 200 to 30000: p is 1 to 3: —R4 is a hydrogen atom, alkyl group having 1 to 18 carbons, phenyl group: q is the same number as the number of the dehydroxyl residue of R1).Type: GrantFiled: June 4, 2004Date of Patent: August 31, 2010Assignee: Kyoeisha Chemical Co., Ltd.Inventor: Motoe Hosoda
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Patent number: 7786326Abstract: The present invention relates to a polyacylurethane having the following general formula (I) and a process for the preparation of such polyacylurethane. Preferred embodiments of the polyacylurethanes according to the invention have elastomeric properties. The polyacylurethanes can suitable be used in biodegradable, biocompatible and/or biomedical devices.Type: GrantFiled: July 21, 2005Date of Patent: August 31, 2010Assignee: Stichting Voor de Technische WetenschappenInventors: Ralf Guillaume Jean Catharina Heijkants, Arend Jan Schouten, Leendert Willem Schwab, Frans Vincent Roukes, Albert Johan Pennings
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Patent number: 7771806Abstract: Stable aqueous poly(urea/urethane) polymers and dispersions are made that do not require the inclusion of chain extenders, curing agents or crosslinking agents. The disclosed poly(urea/urethane) dispersions can be used to make articles such as films and gloves with reduced chance of chemical and biological allergic reaction to skin, and which exhibit improved puncture and tear resistance when compared to such articles made with other materials.Type: GrantFiled: November 4, 2003Date of Patent: August 10, 2010Assignee: INVISTA North America S.a r.l.Inventors: Young H. Kim, Michael O'Neill, Jiazhong Chen, Portia D. Yarborough
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Publication number: 20100130717Abstract: Methods for producing biocompatible compositions are provided. The biocompatible compositions include an aliphatic polyester macromer produced without the use of solvents or catalysts. The resulting aliphatic polyester macromer may be reacted with a polyisocyanate to form an end-capped aliphatic polyester macromer which, in turn, may be reacted with a polyol to produce a polyurethane. The polyurethane, in turn, may be reacted with a second polyisocyanate to produce an isocyanate-functional polyurethane. The compositions prepared by the methods of the present disclosure may be used as adhesives or sealants for medical/surgical uses.Type: ApplicationFiled: April 21, 2008Publication date: May 27, 2010Inventors: Walter Skalla, Allison Calabrese, Ahmad R. Hadba, Nadya Belcheva
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Patent number: 7666919Abstract: A composition for making a polyurethane foam includes a non-fugitive tertiary amine urethane catalyst and an aromatic diacid ester diol or substituted carbamate thereof. Foams prepared from the reaction of a polyol and an organic isocyanate in the presence of these ingredients show excellent resistance to deterioration of physical properties upon humid ageing.Type: GrantFiled: March 14, 2006Date of Patent: February 23, 2010Assignee: Air Products and Chemicals, Inc.Inventors: Juan Jesus Burdeniuc, Stephan Herman Wendel, Renee J. Keller
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Patent number: 7658974Abstract: There is provided a two-pack composition for making urethane-containing structures, said composition comprising (a) a first pack comprising at least one reaction product of at least one polyisocyanate and at least one polyol, wherein said first pack has %NCO of 6% or greater, and (b) a second pack comprising at least one polyol and at least one amine catalyst, wherein the reactive mixture formed by admixing said first pack and said second pack is capable of curing in the absence of water; and wherein said reactive mixture comprises less than 3% solvent by weight based on the weight of said reactive mixture. Also provided are methods of making such urethane-containing structures, and the urethane structures made thereby.Type: GrantFiled: April 25, 2005Date of Patent: February 9, 2010Assignee: Rohm and Haas CompanyInventor: Sebastiano Failla
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Patent number: 7619052Abstract: A blade for electrophotographic apparatus which has a blade member formed of a polyurethane resin, wherein the polyurethane resin is a resin produced by using a polyurethane raw-material composition containing at least the following components (A) to (E): (A) a polyisocyanate; (B) a polyol having a number average molecular weight of 2,000 or more and 4,000 or less; (C) a chain extender having a molecular weight of 200 or less: (D) a polyol having a number average molecular weight which is smaller than the number average molecular weight of the component-(B) polyol and is larger than the molecular weight of the component-(C) chain extender; and (E) a urethane curing catalyst.Type: GrantFiled: March 24, 2006Date of Patent: November 17, 2009Assignee: Canon Kasei Kabushiki KaishaInventors: Shouji Inoue, Taku Hatanaka, Kenichi Mochizuki, Mayuko Kodama
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Ester alcohols and substituted carbamates thereof for minimizing deterioration of polyurethane foams
Patent number: 7615580Abstract: A composition for making a polyurethane foam includes a non-fugitive tertiary amine urethane catalyst and an ester alcohol or substituted carbamate thereof. Foams prepared from the reaction of a polyol and an organic isocyanate in the presence of these ingredients show excellent resistance to deterioration of physical properties upon humid ageing.Type: GrantFiled: June 15, 2007Date of Patent: November 10, 2009Assignee: Air Products and Chemicals, Inc.Inventors: Juan Jesus Burdeniuc, Stephan Herman Wendel, Renée Jo Keller -
Patent number: 7592398Abstract: A coating composition comprising a first component having a first polyester polyol having a first functionality, and a second polyester polyol having a second functionality, wherein the second functionality is greater than the first functionality, and a second component comprising an isocyanate, wherein the coating has an NCO:OH ratio of 1:1 or greater is disclosed. A coated flexible substrate comprising a flexible substrate, and a coating deposited on at least a portion of the substrate, wherein the coating comprises a first component having a first polyester polyol having a first functionality and a second polyester polyol having a second functionality, wherein the second functionality is greater than the first functionality and a second component comprising an isocyanate is also within the scope of the present invention.Type: GrantFiled: June 17, 2005Date of Patent: September 22, 2009Assignee: PPG Industries Ohio, Inc.Inventors: Karen R. Rye, Brian K. Rearick, Michael L. Sproule, Deborah E. Hayes
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Patent number: 7589149Abstract: Stable aqueous poly(urea/urethane) polymers and dispersions are made that do not require the inclusion of chain extenders, curing agents or crosslinking agents.Type: GrantFiled: November 4, 2003Date of Patent: September 15, 2009Assignee: INVISTA North America S.a r.l.Inventors: Young H. Kim, Michael O'Neil, Jiazhong Chen
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Publication number: 20090227759Abstract: Polyesterols having reduced reactivity are prepared by catalytic polycondensation of dicarboxylic acids/dicarboxylic acid derivatives and H-functional substances using tin catalysts by a process wherein the polyesterols are brought into contact with oxygen after the end of the esterification reaction. The polyesterols themselves obtained by this process are used for the preparation of PU.Type: ApplicationFiled: May 1, 2009Publication date: September 10, 2009Applicant: BASF SEInventors: Mirko Kreitschmann, Udo Rotermund, Peter Fritsch
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Patent number: 7576143Abstract: A polyurethane acrylate (A), comprises, as synthesis components, (a) at least one polyisocyanate which comprises isocyanurate groups, based on 1-isocyanato-3,3,5-trimethyl-5-(isocyanatomethyl)cyclohexane, (b) at least one polyisocyanate which comprises isocyanurate groups, based on hexamethylene diisocyanate, (c) at least one aliphatic and/or cycloaliphatic diisocyanate, (d1) at least one polyetherdiol or polyesterdiol having a molecular weight ranging from 500 to 2000, (d2) optionally, at least one diol having a molecular weight of less than 220 g/mol, (e) at least one compound having at least one group reactive toward isocyanate and at least one unsaturated group capable of free radical polymerization, and (f) optionally, at least one compound having exactly one group reactive toward isocyanate.Type: GrantFiled: March 8, 2006Date of Patent: August 18, 2009Assignee: BASF AktiengesellschaftInventors: Reinhold Schwalm, Erich Beck, Klaus Menzel
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Publication number: 20090175921Abstract: The present invention relates to chain extenders, processes for their preparation and their use in the preparation of biocompatible biodegradable polyurethanes and polyurethane ureas for biomedical applications such as stents, scaffolds for tissue engineering.Type: ApplicationFiled: September 20, 2006Publication date: July 9, 2009Inventors: Pathiraja Arachchillage Gunatillake, Timothy Graeme Moore, Raju Adhikari
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Patent number: 7485694Abstract: Polycarbonate is prepared by reactive extrusion on a reactive extruder. A method incorporates the steps of introducing a polycarbonate oligomer, an activated carbonate residue, and a transesterification catalyst to the extruder through a feed section. The extruder has the feed section, a polycarbonate exit section, and a reaction section between the feed section and the polycarbonate exit section. The reaction section is made up of at least one conveying section, kneading sections, and venting sections. The configuration of the reaction section requires that at least one venting section be disposed between each pair of kneading sections, and that the kneading sections and venting sections are selected such that the number of venting sections minus the number of kneading sections is greater than or equal to one. The method further contains the step of extruding the reaction components at a temperature in a range between 100° C. and 500° C.Type: GrantFiled: December 21, 2005Date of Patent: February 3, 2009Assignee: Sabic Innovative Plastics IP B.V.Inventors: Peter Davis, Hans Looij
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Patent number: 7462680Abstract: Binder combinations containing polyisocyanates, special lactone-based polyols and polyester polyols and to their use for producing coatings, preferably on plastics.Type: GrantFiled: July 23, 2004Date of Patent: December 9, 2008Assignee: Bayer MaterialScience AGInventors: Christian Wamprecht, Jörg Tillack
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Patent number: 7456245Abstract: This invention relates to materials which absorb and dissipate energy and/or selectively allow energy to be transmitted, methods of making same, and articles comprising such materials. In particular, polymeric materials which include polyol(s) such as, but not limited to, polyethers, polyesters, polyether/esters, acrylics, and combinations thereof, plus other formulary components such as hydroxyl-terminated polybutadienes, polyisocyanates, silicone, preferably RTV (room temperature vulcanizing) silicone, and, preferably, suitable catalysts, preferably organometallic catalysts such as DBTDL (dibutyl tin dilaurate). Included are such polymeric materials which are resilient and which resist compression and compression set while exhibiting energy absorbing properties. Optionally, additives may be functionally or cosmetically added.Type: GrantFiled: November 24, 2004Date of Patent: November 25, 2008Assignee: Battelle Memorial InstituteInventors: John D. Dunham, Joan T. Muellerleile
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Patent number: 7439299Abstract: An aqueous coating composition having a 60° gloss of ?40 upon drying comprising a self-crosslinkable polyurethane obtained by the reaction of: (A) an isocyanate-terminated pre-polymer formed from components which comprise (i) 5 to 65 wt % of at least one organic polyisocyanate; (ii) 0.Type: GrantFiled: December 16, 2003Date of Patent: October 21, 2008Assignee: DSM IP Assets B.V.Inventors: Richard G Coogan, Nikos J Georgakakis, Anthony Pajerski
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Patent number: 7396875Abstract: The present invention is directed to a waterborne, UV-curable polyurethane emulsion and the use thereof in producing soft touch coatings. The emulsion is prepared by a) reacting specified hydroxy-functional components with di- and/or polyisocyanates, b) forming a dispersion of the resultant product with water and reacting the dispersion with amine functional materials.Type: GrantFiled: January 20, 2004Date of Patent: July 8, 2008Assignee: Bayer MaterialScience LLCInventors: Aaron A. Lockhart, Michael J. Dvorchak, Lyubov K. Gindin
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Patent number: 7344619Abstract: The invention relates to a method of making a water repellent laminate including applying a hot melt moisture cure adhesive to a primary substrate and bonding the primary substrate with a secondary substrate that has been treated with a water repellent material prior to the lamination. The adhesive composition includes a hot melt moisture cure polyurethane prepolymer formed from a polyol component and a polyisocyanate component. The polyol component includes a first polyether polyol having a number average molecular weight of from about 500 to about 8,000, a first polyester polyol having a melting point of less than about 40° C. or a second polyether polyol having a molecular weight of from about 200 to about 1,000, and a crystalline polyester polyol having a melting point of from about 40° C. to about 120° C.Type: GrantFiled: May 22, 2006Date of Patent: March 18, 2008Assignee: H.B. Fuller Licensing & Financing, IncInventor: Marietta B. Helmeke
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Patent number: 7335420Abstract: The invention provides a feed/transport roller formed of polyurethane material, which roller has high wear resistance as well as low hardness for providing excellent sheet feeding capacity and which meets a recent requirement; i.e., high durability for allowing high-speed operation. The feed/transport roller has an elastic layer formed of a castable polyurethane produced through reaction of a polyester-polyol having a number average molecular weight of 1,000 to 3,000 with a polyisocyanate, wherein the elastic layer is formed from the polyester-polyol, the polyisocyanate, an adipic acid ester derivative serving as a plasticizer, a short-chain diol having a molecular weight of 70 to 120 serving as a chain-extender, and a triol having a number average molecular weight of 3,000 to 5,000 serving as a cross-liking agent.Type: GrantFiled: December 20, 2004Date of Patent: February 26, 2008Assignee: Synztec Co., Ltd.Inventor: Shuhei Noda
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Patent number: 7273656Abstract: The invention provides composite elements containing a thermoplastic polymer layer, adhering to a layer comprising the reaction product of a reaction mixture containing a prepolymer containing isocyanate groups produced by the reaction of at least one isocyanate and one polycarbonate polyalcohol with a functionality of 2 to 3 and a hydroxyl number of about 40 to about 400 mg KOH/g, based on the condensation of carbonates with diols and/or triols with a molecular weight of about 62 to about 3000 g/mol, the prepolymer having an isocyanate group content of about 5 to about 48%, compounds reactive with respect to isocyanates and optionally catalysts blowing agents and/or auxiliary substances and/or additives. The present invention further provides a process for the production the composite elements.Type: GrantFiled: November 10, 2004Date of Patent: September 25, 2007Assignee: Bayer MaterialScience AGInventors: Peter Haas, Rolf Roers, Hartwig Grammes
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Patent number: 7268202Abstract: A polyisocyanate composition comprising an allophanate group, which is obtained from an aliphatic diisocyanate(s), wherein in a state substantially free of a solvent and the aliphatic diisocyanate(s), (i) the content of components having a molecular weight of 700 or less is 20-60 weight %, (ii) the ratio of weight average molecular weight to number average molecular weight is 1.20-5.00, (iii) the ratio of viscosity (unit: mPa·s) of the polyisocyanate composition at 25° C. to the number average number of functional groups of isocyanate groups is represented by the following expression: viscosity(mPa·s)/number average number of functional groups?240.Type: GrantFiled: September 17, 2002Date of Patent: September 11, 2007Assignee: Asahi Kasei Chemicals CorporationInventors: Shinichiro Watanabe, Kunio Naoi
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Patent number: 7262255Abstract: The present invention relates to a hydroxy-functional polyester resin, which is obtainable by reaction of a composition, which contains (i) a low-molecular polyvalent alcohol having at least two hydroxyl groups per molecule, (ii) a polyether polyol, (iii) a monofunctional saturated aliphatic, cycloaliphatic or aromatic carboxylic acid, and (iv) a polycarboxylic acid having at least two carboxyl groups. The invention further relates to a resin emulsion and a mother paint comprising an aqueous emulsion of the polyester resin, a two-component water-based paint system, comprising the resin emulsion or the mother paint and an isocyanate component as well as a method for the preparation of the water-based paint system.Type: GrantFiled: March 28, 2002Date of Patent: August 28, 2007Assignee: Ashland-Sudchemie-Kernfest GmbHInventors: Reinhard Winter, Peter Kuhlmann, Jörg Schwarte
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Patent number: 7202302Abstract: Polyisocyanurate systems, pultrusion of those systems to produce reinforced polyisocyanurate matrix composites, and to composites produced thereby. The polyisocyanurate systems include a polyol component, an optional chain extender, and an isocyanate. The polyisocyanurate systems have extended initiation times of about 5 minutes to about 30 minutes at room temperature, and can be snap cured.Type: GrantFiled: November 17, 2003Date of Patent: April 10, 2007Assignee: Huntsman International LLCInventors: Evan H. Cheolas, Berend Eling, Ravi R. Joshi, Alan McClelland, Ajay Padsalgikar, Andreas H. Rothacker
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Patent number: 7157536Abstract: A composition that can be used as a component in auto clear coat and primer is disclosed. The composition comprises or is an alkoxylated amine having the formula of (A)[N(R1H)2]p including an isomer or mixture of isomers thereof. Also disclosed is a process, which comprises contacting an amine with an epoxide under a condition sufficient to produce an alkoxylated amine. Further disclosed is a composition that can be used as coating composition and primer, which comprises an alkoxylated amine and an organic polyisocyanate.Type: GrantFiled: January 19, 2004Date of Patent: January 2, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Gia Huynh-Ba, Patrick Henry Corcoran, Carl Brent Douglas, Christian Peter Lenges, John Stuart Coates
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Patent number: 7141628Abstract: The object of the present invention is to provide a golf ball having an improved impact resistance without lowering the productivity, and a golf ball paint which is used therefor. The present invention is characterized in the use of two component curing type urethane paint comprising an aqueous polyol having hydroxyl value of from 50 mgKOH/g below 100 mgKOH/g and a weight average molecular weight of 4,000 to 20,000, and a polyisocyanate.Type: GrantFiled: December 9, 2003Date of Patent: November 28, 2006Assignee: SRI Sports LimitedInventors: Kazuhiko Isogawa, Koichi Fujisawa
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Patent number: 7115697Abstract: An adhesive composition comprising a two-component system comprising A) at least one polyester urethane containing at least two isocyanate groups, which polyester urethane may be obtained by reaction of one or more polyesters 1 with aliphatic diisocyanates and reaction with one or more polyesters 2, wherein polyester 1 exhibits a number average molecular weight Mn in the range from 3,000 to 7,000 g/mol and polyester 2 exhibits a number average molecular weight Mn in the range from 700 to 2,000 g/mol and B) one or more branched polyesters with a number average molecular weight Mn in the range from 1,000 to 3,500 g/mol and optionally one or more conventional additives; the present invention provides a polyurethane-based adhesive composition which is suitable for the production of laminates for sterilizable packaging and exhibits a low residual content of highly volatile diisocyanates.Type: GrantFiled: August 31, 2004Date of Patent: October 3, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Olaf Kleineberg, Erik de Jong, Engin Temeltas, Heinz-Peter Pfeiffer, Peter Schreiber
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Patent number: 7098291Abstract: A moisture-reactive hot-melt adhesive composition is provided. Particularly, a composition that includes a polyisocyanate and at least two polyols, one of which is a fatty polyol. Also provided is a method for bonding substrates using the adhesive.Type: GrantFiled: May 15, 2003Date of Patent: August 29, 2006Assignee: Rohm and Haas CompanyInventor: Larry Frank Brinkman
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Patent number: 7041770Abstract: A golf ball comprising a layer including a saturated polyurethane composition formed of a saturated prepolymer and a saturated curing agent, wherein the layer may be casted as an outer cover, formed as an intermediate layer, or both.Type: GrantFiled: June 23, 2003Date of Patent: May 9, 2006Assignee: Acushnet CompanyInventor: Shenshen Wu
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Patent number: 7022804Abstract: The invention relates to a moisture-crosslinkable hot-melt adhesive which is composed of a polyurethane prepolymer obtained by polyaddition of at least one polyol to at least one isocyanate chosen from the group of diisocyanates trimerized as isocyanurates and reaction products of diisocyanates with water, the prepolymer having a content of free NCO group of between 1 and 25% by weight. The adhesive according to the invention may be used for the adhesive bonding of fixing components of the Velcro® type to articles intended for hygiene.Type: GrantFiled: June 4, 2003Date of Patent: April 4, 2006Assignee: Bostik SAInventors: Michel Miskovic, François Bauduin, Patrick Bouttefort, Jean-François Chartrel
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Patent number: 7005477Abstract: A one component moisture-curing polyurethane adhesive composition having a long pot life that does not cause its user to experience breathing difficulty is described. In one embodiment the adhesive is prepared from a mixture of a high molecular weight component selected from the group consisting of polyols, diamines, and mixtures thereof; an isocyanate; and a low molecular weight component selected from the group consisting of diols, diamines, and mixtures thereof.Type: GrantFiled: May 16, 2002Date of Patent: February 28, 2006Assignee: MCP Industries, Inc.Inventors: Thomas M. Garrett, Xian Xian Du
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Patent number: 6994909Abstract: The invention relates to a laminating adhesive including a reaction product of at least one polymeric polyol (part A) and at least one NCO terminated polyurethane prepolymer (part B). The part A includes a reaction product of at least one alkylene diol; at least one dial containing a pendant aliphatic chain; and at least one dicarboxylic acid. The part B includes a reaction product of at least one polyether polyol; and at least one polyisocyanate. The adhesive exhibits an initial viscosity of less than about 25,000 mPa.s at about 25° C.Type: GrantFiled: June 20, 2003Date of Patent: February 7, 2006Assignee: H.B. Fuller Licensing & Financing Inc.Inventor: Brian S. Glasbrenner
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Patent number: 6989406Abstract: A process for preparing oil and petroleum-resistant cellular to solid (polyurea)polyurethanes (PURS) with improved physical properties in which a polyether polyol component having a number average molecular weight of from 1000 to 8000 and a polyester polyol component having a number average molecular weight of from 1000 to 6000 are reacted with a polyisocyanate and the (polyurea) polyurethanes produced by that process. The (polyurea)polyurethanes are particularly useful for personal safety equipment and in the construction of automobiles.Type: GrantFiled: June 2, 2000Date of Patent: January 24, 2006Assignee: Bayer AktiengesellschaftInventors: Hans-Detlef Arntz, Klaus Brecht, Bernhard John, Peter Seifert, Michael Schneider
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Patent number: 6964626Abstract: The present invention relates to molded polyurethane/urea elastomers, and specifically to improved polyurethane/urea elastomers having high temperature stability to about 140–150° C. and low temperature flexibility at about ?35–(?40)° C., for use in dynamic applications. These elastomers are particularly useful for application in belts, specifically in automotive timing or synchronous belts, V-belts, multi V-ribbed or micro-ribbed belts, flat belting and the like. The polyurethane/urea elastomers of the present invention are prepared by reacting polyisocyanate prepolymers with symmetric primary diamine chain extenders, mixtures of symmetric primary diamine chain extenders and secondary diamine chain extenders, or mixtures of symmetric primary diamine chain extenders and non-oxidative polyols, which are all chosen to eliminate the need for catalysts via standard molding processes, and to improve phase separation.Type: GrantFiled: June 12, 1996Date of Patent: November 15, 2005Assignee: The Gates CorporationInventors: William W. L. Wu, James R. Stamp, W. Joe Brothers
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Patent number: 6930162Abstract: The present invention relates to a multi-stage process for the continuous preparation of thermoplastically processable polyurethanes with improved processing properties based on various polyols.Type: GrantFiled: August 19, 2003Date of Patent: August 16, 2005Assignee: Bayer AktiengesellschaftInventors: Wolfgang Bräuer, Herbert Heidingsfeld, Henricus Peerlings, Ludwig Trabert
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Patent number: 6916896Abstract: Commercially acceptable spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4,4?-MDI and 2,4?-MDI, and an amount of chain extenders and chain terminators such that the polymer solution, prior to spinning, is highly soluble and has an appropriate pre-spun IV and primary amine content.Type: GrantFiled: May 5, 2003Date of Patent: July 12, 2005Assignee: Invista North America S.a.r.l.Inventors: Gordon W. Selling, Nathan E. Houser
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Patent number: 6908981Abstract: A laminate adhesive that can suppress elution of a low molecular weight compounds of a composite film into the content, so as to prevent the inherent properties or performances of the content from being spoiled by the low molecular weight compounds. In the laminate adhesive, the polyester polyol contains naphthalenedicarboxylic acid and/or alkyl ester thereof as an acid component, and concentration of cyclic ester compounds in extracted water, which are extracted from a composite film bonded by the laminate adhesive by water of 0.5 mL/cm2 per unit area of the composite film, is 0.5 ppb or less in terms of dibutyl phthalate concentration measured by a gas chromatograph-flame ionization detector.Type: GrantFiled: January 28, 2002Date of Patent: June 21, 2005Assignee: Mitsui Takeda Chemicals, Inc.Inventors: Shigetoshi Sasano, Sachio Igarashi
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Patent number: 6906148Abstract: The present invention relates to compositions comprising reaction products of a polyisocyanate with a polyester block copolymer and a process for the preparation thereof. These are suitable as a moisture-curing hot melt adhesive. The hot melt adhesive composition may optionally also comprise a reaction product of a polyisocyanate with a polyester polyol and/or a reaction product of a polyisocyanate with a polyether polyol. Such polyurethane hot melt adhesive compositions have good creep resistance and interfacial adhesion values on plastics and show very high strength values.Type: GrantFiled: May 30, 2001Date of Patent: June 14, 2005Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Michael Krebs, Christoph Lohr, Andreas Brenger, Ingolf Scheffler
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Patent number: 6867279Abstract: A golf ball comprising a layer including a saturated polyurethane composition formed of a saturated prepolymer and a saturated curing agent, wherein the layer may be casted as an outer cover, formed as an intermediate layer, or both.Type: GrantFiled: July 15, 2002Date of Patent: March 15, 2005Assignee: Acushnet CompanyInventor: Shenshen Wu
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Patent number: 6844073Abstract: A hot melt moisture cure polyurethane adhesive composition includes at least one polyurethane prepolymer. The prepolymer includes the reaction product of a polyol component and a polyisocyanate component. The polyol component includes a) at least one amorphous polyester polyol comprising the reaction product of neopentyl glycol, hexanediol and at least one of phthalic anhydride and phthalic acid; b) at least one liquid polyester polyol having a viscosity of greater than about 10,000 cps at 80° C.; c) at least one crystalline polyester polyol having a melting point of from about 40° C. to about 120° C.; and d) at least one thermoplastic polyurethane.Type: GrantFiled: September 27, 2001Date of Patent: January 18, 2005Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: Marietta B. Helmeke, Jorge A. Lavieri
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Publication number: 20040236059Abstract: New ionomeric thermoplastic polyurethanes (TPU) are described, obtainable by means of the reaction of aromatic or aliphatic diisocyanates, difunctional polyols, chain-extending glycols and anionic type ionomeric extending glycols at a high temperature and reduced time.Type: ApplicationFiled: June 16, 2004Publication date: November 25, 2004Inventors: Jose Ayuso Piqueras, Daniel Salvatella Radresa, Jose Sese Solano, Joaquin Julia Barges
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Patent number: 6815501Abstract: Dual cure coating composition comprising resin solids, said resin solids being composed of (a) 30 to 90 wt. % of at least one hydroxy-functional polyester urethane having olefinic double bonds, (b) 0 to 60 wt. % of at least one binder other than the polyester urethane (a) and/or at least one reactive diluent, and (c) 10 to 50 wt.Type: GrantFiled: April 9, 2002Date of Patent: November 9, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Carmen Flosbach, Thomas Fey, Eva Frigge
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Patent number: 6787628Abstract: A polymer comprising the addition reaction product of a polyisocyanate having a functionality of from 2 to 10 and a succinylpolyether having a C6-30-alk(en)yl group and at least one group which is capable of reacting with the polyisocyanate and where the number of recurring ethyleneoxy groups in the polyether is from 4 to 800.Type: GrantFiled: April 2, 2003Date of Patent: September 7, 2004Assignee: Avecia LimitedInventors: Dean Thetford, Stuart Barnett
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Patent number: 6770271Abstract: The present invention relates to polyurethanes and a process for preparing them. These polyester polyurethanes contain units corresponding to the following formulae (I) and (II): The polyester polyurethanes according to the present invention form pseudolatices and may be utilized as film-forming resin in cosmetic compositions.Type: GrantFiled: February 23, 2000Date of Patent: August 3, 2004Assignee: L'OrealInventors: Jean Mondet, Bertrand Lion, Nathalie Mougin, Bertrand Piot, Valérie de La Poterie
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Patent number: 6750286Abstract: A polyurethane which has a number average molecular weight Mn of from 3,000 to 50,000 and an acid number of from 10 to 35 and is preparable by reacting (a1) at least one polyesterpolyol having a number average molecular weight Mn of from 1,000 to 4,000, an acid number of from 0 to 15, and an OH number of from 35 to 150, based on acyclic aliphatic and cycloaliphatic dicarboxylic acids, (a2) a mixture of at least one diol and one triol, (a3) at least one compound containing at least two isocyanate-reactive functional groups and at least one functional group capable of forming anions, and (a4) a mixture of at least one, acyclic aliphatic and at least one cycloaliphatic diisocyanate, to give an isocyanato-containing prepolymer that is then chain extended with a polyfunctional amine or amino alcohol and, if desired, is neutralized.Type: GrantFiled: June 26, 2001Date of Patent: June 15, 2004Assignee: BASF Coatings AGInventors: Stephan Schwarte, Michael Hartung
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Patent number: 6713588Abstract: The present invention provides a golf ball having enhanced durability of the clear coating film and the mark. The golf ball of the invention comprises: a ball body having an ionomer resin cover; an epoxy coating film formed on the ball body, a polyurethane clear coating film formed on the epoxy coating film, wherein the epoxy coating film is made by curing an epoxy resin with a polyamide curing agent; and the polyurethane clear coating film is made by curing a polyol with an isocyanate curing agent, wherein the polyol is a mixture of a polyester polyol and a polyether polyol.Type: GrantFiled: August 20, 2002Date of Patent: March 30, 2004Assignee: Sumitomo Rubber Industries LimitedInventor: Kazuhisa Fushihara
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Patent number: 4964146Abstract: Alignment in X-ray lithography is generally effected in such a manner that the surface of a target mark for alignment formed on a wafer is illuminated with light for alignment through an X-ray mask, and the position of the wafer is detected from the reflected light. On the basis of the finding that the reflected light from the mask, particularly from an absorber formed thereon, greatly degrades the precision and reliability in measurement, the present invention provides a pattern transfer mask provided with a thin film which lowers the reflection factor of the mask the thin film having a thickness set a .lambda./4n (.lambda.:the wavelength of the light for alignment; n: an integer) or an odd-number multiple thereof. Thus, it is advantageously possible to overcome the above-described lowering of precision and reliablity.Type: GrantFiled: March 15, 1989Date of Patent: October 16, 1990Assignee: Hitachi, Ltd.Inventors: Shinji Kuniyoshi, Takeshi Kumura