Contains Polyhydroxy Reactant; Or Additional Polymer Derived From -n=c=x And Polyhydroxy Reactant Patents (Class 525/458)
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Patent number: 7064154Abstract: Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a combination of two different radiation curable urethane oligomers, and can further comprise one or more reactive monomers. One of the oligomers has at least three functional groups that can undergo radiation cure, and comprises a lactone modified polyol.Type: GrantFiled: January 9, 2004Date of Patent: June 20, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Shengkui Hu, Alan B. Weissberg
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Patent number: 7037963Abstract: A golf ball comprising a core and two or more outer layers covering said core, wherein the first outer layer is formed mainly from a mixture of a non-ionomer thermoplastic elastomer and an isocyanate compound and the second outer layer is formed mainly from a mixture composed of a resin component consisting of an ionomer resin and a non-ionomer thermoplastic elastomer, a fatty acid and/or a derivative thereof, a metal ion source capable of neutralizing unneutralized acid radicals in the above-mentioned components, and a compound having two or more reactive functional groups and a molecular weight no larger than 20,000, with the first outer layer being contiguous to the second outer layer, which exhibits superior in durability and rebound resilience.Type: GrantFiled: November 25, 2003Date of Patent: May 2, 2006Assignee: Bridgestone Sports Co., Ltd.Inventors: Rinya Takesue, Yasushi Ichikawa, Hiroyuki Nagasawa
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Patent number: 7037402Abstract: High green strength reactive hot melt adhesives are prepared using relatively low levels of reactive acrylic, and may be prepared with liquid crystalline or crystalline diols.Type: GrantFiled: October 15, 2002Date of Patent: May 2, 2006Assignee: National Starch & Chemical Investment Holding CorporationInventors: Ju-Ming Hung, Yue S. Zhang, Wayne K. Chu
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Patent number: 7015299Abstract: Melt spun thermoplastic polyurethane polymers useful as textile fibers and having good tenacity and recovery and substantially no gelation are disclosed. The polymers are prepared by a three-step polymerization process including: preparation of “hard” segment oligomer, preparation of “soft” segment oligomer and final reaction of “hard” segment with “soft” segment in a twin-screw reaction extruder to obtain a final polyurethane product having relatively uniform distances between the “hard” segments. The “soft” segment oligomer comprises blocks of polymeric glycol (poly) urethanes end capped with isocyanate groups. The “hard” segment oligomer comprises blocks of low molecular weight C2–C6 glycol (poly) urethanes.Type: GrantFiled: April 30, 2001Date of Patent: March 21, 2006Inventor: W. Kenneth Wilkinson
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Patent number: 7001931Abstract: A blend activatable with actinic radiation and solid at room temperature, comprising (A) at least one crystalline compound containing on average per molecule at least one reactive functional group having at least one bond which can be activated with actinic radiation, and (B) at least one amorphous compound containing on average per molecule at least one reactive functional group having at least one bond which can be activated with actinic radiation; process for its preparation, and its use.Type: GrantFiled: December 18, 2001Date of Patent: February 21, 2006Assignee: BASF Coatings AGInventors: Christopher Hilger, Rainer Blum
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Patent number: 6987135Abstract: Photoactivatable water born coating composition comprising a) a (meth)acryloyl-functional polyurethane dispersion, with the (meth)acryloyl-functional polyurethane comprising 5 to 18 wt. % of alkylene oxide groups while the (meth)acryloyl functionality is in the range of 2 to 40, and b) a UV-initiator. Preferably, the (meth)acryloyl-functional polyurethane comprises 8 to 18 wt. % of alkylene oxide groups. More preferably, the coating composition comprises a reactive diluent.Type: GrantFiled: October 25, 2001Date of Patent: January 17, 2006Assignee: Akzo Nobel N.V.Inventors: Keimpe Jan Van Den Berg, Arie Noomen, Frederik Rous, Ignace Damiaan Christiaan Rood, Heert Andringa, Klaas Jan Hendrik Kruithof, Ann Kerstin Birgitta Lindell Kjellqvist
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Patent number: 6939924Abstract: Golf ball covers and intermediate layers incorporate the reaction product of a thermoplastic urethane and a modified isocyanate to form a crosslinked polyurethane. The layers exhibit the ease of processing of a thermoplastic urethane, with the superior mechanical properties of a thermoset urethane.Type: GrantFiled: March 10, 2003Date of Patent: September 6, 2005Inventors: Hyun Jin Kim, Hong Guk Jeon
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Patent number: 6930155Abstract: A polyurethane composition comprising: A) from 3 to 35% by weight of a polymeric composition comprising 1) at least one polymer and 2) at least one thermoset in amounts of from 0.5 to 50% by weight, based on the sum of A1) and A2), prepared by reaction in the polymer matrix A1) of a) at least one starting component containing NH2 groups and b) at least one starting component containing NCO groups, a) and b) having simultaneously or independently a functionality of ?2 and at least one starting component having a functionality of >2 being present in amounts of from 0.5 to 100% by weight, based on the weight of A2); B) from 15 to 45% by weight in the polymeric composition A), based thereon, of at least one amorphous and/or crystalline polyester having an OH number of from 10 to 250 mg KOH/g; C) from 7 to 25% by weight in the polymeric composition A), based thereon, of at least one curing agent based on blocked polyisocyanates, isocyanurates and/or uretdiones having a functionality of at least 1.Type: GrantFiled: November 29, 2002Date of Patent: August 16, 2005Assignee: Degussa AGInventors: Jörn Volker Weiss, Werner Grenda
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Patent number: 6927254Abstract: The invention relates to solvent-borne polyurethane resins with a high carbonate group content which are dilutable in water, to aqueous coating compositions prepared thereof, to a process for preparing them and to their use.Type: GrantFiled: November 5, 2003Date of Patent: August 9, 2005Assignee: Bayer AktiengesellschaftInventors: Martin Melchiors, Thomas Münzmay, Torsten Pohl, Uwe Klippert
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Patent number: 6914115Abstract: Polyurethane powder coating compositions containing uretdione groups and curing at low temperatures are provided, along with processes for preparing such compositions, and their use as powder coatings, wherein the compositions generally contain: A) a uretdione-containing powder coating hardener derived from aliphatic, (cyclo)aliphatic, cycloaliphatic or aromatic polyisocyanates and hydroxyl-containing compounds, and having a melting point from 40 to 130° C., a free NCO content of less than 5% by weight, and a uretdione content of 6-18% by weight; B) a hydroxyl-containing polymer having a melting point from 40 to 130° C., and an OH number between 20 and 200 mg KOH/gram, and C) a catalyst of the formula [NR1R2R3R4]+[R5]?, in which R1-R4 simultaneously, or independently of one another, are alkyl, aryl, aralkyl, heteroaryl or alkoxyalkyl radicals, and each R1-R4 is aromatic, linear or branched, unbridged or bridged with other radicals, R1-R4.Type: GrantFiled: November 27, 2002Date of Patent: July 5, 2005Assignee: Degussa AGInventors: Emmanouil Spyrou, Holger Loesch, Andreas Wenning
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Patent number: 6914102Abstract: A thermally curable hot-melt adhesive composition, comprising a polyurethane prepolymer having isocyanate groups, wherein at least 50% of the reactive isocyanate groups of the prepolymer are blocked, said prepolymer being the reaction product of (1) 20 to 40 wt % of at least one straight-chain amorphous polyester having a number average molecular mass Mn of 3000 to 6000 with (2) 40 to 60 wt % of at least one polyurethane elastomer, (3) 10 to 20 wt % of at least one polyester elastomer, (4) at least one diisocyanate, (5) at least one polyol as a chain extender, and (6) at least one blocking agent; and at least one isocyanate reactive component selected from the group consisting of polyalcohols, polyamines and hydroxy-functionalized epoxide resins; wherein the percentages are based on the total weight of polyester, polyurethane elastomer and polyester elastomer.Type: GrantFiled: November 21, 2003Date of Patent: July 5, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Olaf Kleineberg, Engin Temeltas, Heinz-Peter Pfeiffer
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Patent number: 6911502Abstract: This invention is comprised of a thermoplastic polyurethane elastomer fiber obtained by melt spinning a polyurethane having a rebound of 60% or greater and a isocyanate-terminated polyether or polyester additive. The elastic fibers have low shrinkage, high heat resistance, low tensile set, and high elongation.Type: GrantFiled: February 23, 2001Date of Patent: June 28, 2005Assignee: Noveon IP Holdings Corp.Inventor: Ravi Ram Vedula
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Patent number: 6903167Abstract: Polyurethane prepolymers containing NCO (isocyanate) groups and having a low content of monomeric polyisocyanate, processes for their production and uses employing these prepolymers. The polyurethane prepolymers of the invention are produced from by a reaction employing monomeric polyisocyanates and polyols.Type: GrantFiled: May 30, 2003Date of Patent: June 7, 2005Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA)Inventors: Gerd Bolte, Guenter Henke, Claudia Meckel-Jonas, Dagmar Jahns
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Patent number: 6887401Abstract: A method of fast curing polythiourethane transparent casted substrate, usable for making optical articles such as ophthalmic lenses, which comprises the steps of: 1) Providing a first component A comprising a polythiourethane prepolymer having isocyanate or isothiocyanate end groups and a viscosity at 25° C. ranging from 0.02 to 0.4 Pa.s; 2) Providing a second component B comprising a polythiourethane prepolymer having thiol (SH) end groups and a viscosity at 25° C. ranging from 0.2 to 2.0 Pa.s; 3) Mixing together first and second components A and B and filling a moulding cavity of a casting mould assembly with the resulting mixture; 4) Curing said mixture to obtain a transparent solid substrate, said curing step comprising: a) a first step for polymerizing said mixture to obtain a gel within 1 to 10 minutes; and b) a second step of post-curing the gel to obtain the transparent solid substrate; and 5) Recovering the transparent solid substrate from the mould.Type: GrantFiled: November 5, 2001Date of Patent: May 3, 2005Assignee: Essilor International Compagnie General d'OptiqueInventors: Gabriel Keita, Joey O. Obordo, Pamela Anne McClimans, Yassin Yusef Turshani
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Patent number: 6884852Abstract: A polyurethane is produced by reacting at least components A and B, where a) a polyisocyanate or mixture of polyisocyanates is used as component A and b) a polyol or mixture of polymer is used as component B. Component B contains at least one polyether having a number average molecular weight of at least 4000 and a polydispersity of less than 1.5 and/or an OH functionality of between about 1.8 and about 2. Preparations containing such polyurethanes are useful as adhesives, coatings and sealants.Type: GrantFiled: March 17, 1999Date of Patent: April 26, 2005Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Klauck, Lydia Duhm, Martin Majolo
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Patent number: 6872760Abstract: Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a combination of two different radiation curable urethane oligomers, and can further comprise one or more reactive monomers. One of the oligomers has at least three functional groups that can undergo radiation cure.Type: GrantFiled: February 6, 2003Date of Patent: March 29, 2005Assignee: PPG Industries Ohio, Inc.Inventors: Shengkui Hu, Alan B. Weissberg
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Patent number: 6846893Abstract: A mixture is provided comprising (a) at least one of an elastomeric thermoplastic, a non-elastomeric thermoplastic, an elastomeric thermoset and mixtures thereof, excluding polydiorganosiloxane fluids and (b) a polymer having soft polydiorganosiloxane units, hard polyisocyanate residue units, optionally, soft and/or hard organic polyamine residue units and terminal groups. The hard polyisocyanate residue and the hard polyamine residue comprise less than 50% by weight of the polydiorganosiloxane urea containing component. The polyisocyanate residue is the polyisocyanate minus the —NCO groups and the polyamine residue is the polyamine minus the —NH2 groups. The polyisocyanate residue is connected to the polyamine residue by urea linkages. The terminal groups are non-functional groups or functional groups. The polydiorganosiloxane urea containing component may be reactive under free-radical or moisture curing conditions.Type: GrantFiled: October 23, 1996Date of Patent: January 25, 2005Assignee: Minnesota Mining and Manufacturing CompanyInventors: Audrey A. Sherman, Mieczyslaw H. Mazurek, Walter R. Romanko, Patrick D. Hyde, Roy Wong, Albert I. Everaerts
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Patent number: 6838516Abstract: The present invention relates to a water dispersible polyisocyanate composition comprising (a) an aliphatic polyisocyanate or a mixture of aliphatic polyisocyanates or a mixture of aliphatic polyisocyanates with other polyisocyanates; and (b) a reaction product of component (a) with a component selected from the group consisting of: (ii) a polyether diol or triol or a mixture thereof wherein a weight ratio of ethylene oxide (EO) to propylene oxide (PO) of the polyether diol and triol is greater than about 60:40, and the polyether diol has a molecular weight of about 300 to 1600 g/mole, and the polyether triol has a molecular weight of about 450 to 2400 g/mole; and (ii) a mixture of polyether monol and polyether polyol, wherein the polyether polyol is selected from the group consisting of polyether diol, triol and a mixture thereof wherein a weight ratio of EO to PO of the polyether monol, diol and triol is greater than about 60:40, and the polyether diol and triol have the molecular weights as defined aboType: GrantFiled: July 26, 2002Date of Patent: January 4, 2005Assignee: Great Eastern Resins Industrial Co., Ltd.Inventors: Shenghong A. Dai, Jui-Ming Chang, Tsai-Lung Chen, Will Yang
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Patent number: 6828379Abstract: The invention relates to curable resin compositions based on an unsaturated prepolymer, a vinyl ether monomer that can be cross-linked with it and one or more other monomers for use as structural resins. The resin composition is cured with the aid of a radical-forming system that is unstable in the temperature range of −20° C. to +110° C., and contains an unsaturated prepolymer having an acid number of less than 10 mg of KOH per g and a vinyl ether monomer according to formula (I) or (II): A—CH═CH—O—R (I) or (A—CH═CH—O)n—R′ (II) with A, R, R′ and n having the described meanings. The invention also relates to a process for the preparation of such resin compositions and uses thereof.Type: GrantFiled: December 19, 2001Date of Patent: December 7, 2004Assignee: DSM IP Assets B.V.Inventors: Jan H. Udding, Agnes E. Wolters
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Patent number: 6824834Abstract: Coating composition especially for preparing automotive surfacers, comprising a condensation product A of a carboxyl-containing resin A1 and a hydroxyl-containing resin A2, a curing agent C which becomes active only at an elevated temperature of at least 80° C., and a high molecular mass polyurethane B.Type: GrantFiled: November 6, 2002Date of Patent: November 30, 2004Assignee: Solutia Austria GmbHInventors: Markus A. Schafheutle, Ulrike Kuttler, Anton Arzt, Julius Burkl
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Publication number: 20040225078Abstract: A clear paint for golf balls includes essentially a base polymer including a polyurethane resin, and a graft polymer including a comb polymer having a backbone portion formed of an acrylic resin and a branch portion formed of polyorganosiloxane. The backbone portion of the comb polymer has at least one hydroxyl group.Type: ApplicationFiled: June 18, 2004Publication date: November 11, 2004Applicant: Bridgestone CorporationInventor: Yuichi Ishino
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Patent number: 6797789Abstract: This invention relates to the process of preparation and application of a plural component, fast cure phenolic/polyurea elastomer coating co-polymer system. The disclosed coating system is prepared from the reaction of an isocyanate component and an amine terminated resin blend component. Each of the two components may individually or both contain a phenolic resin based product as part of the active hydrogen donation for the reaction with the isocyanate. These phenolic/polyurea co-polymers are characterized as having significantly improved chemical resistance and lower moisture vapor transmission through the coating system over conventional polyurea elastomer coating systems, thus making the coatings suitable for highly corrosive environments.Type: GrantFiled: October 19, 2001Date of Patent: September 28, 2004Assignee: Visuron Technologies, Inc.Inventors: Thomas E. Davis, Dudley J. Primeaux, II
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Patent number: 6790916Abstract: The present invention relates to a process for the production of molding compositions, which can easily be released from the mold. These molding compositions comprise thermoplastic polyurethanes with a hardness of 45 to 65 Shore A, with good mechanical properties, with low shrinkage and good low temperature properties.Type: GrantFiled: February 19, 2003Date of Patent: September 14, 2004Assignee: Bayer AktiengesellschaftInventors: Wolfgang Bräuer, Herbert Heidingsfeld, Hans-Georg Hoppe, Hans-Georg Wussow, Eva Brigitte Eggeling, Wolfgang Röhrig
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Publication number: 20040138390Abstract: Process for preparing an elastomeric polyurethane material by reacting a polyisocyanate, a polyol and a monool.Type: ApplicationFiled: November 18, 2003Publication date: July 15, 2004Inventors: Gerhard Jozef Bleys, Danny Anna Edward Geukens, Hans Godelieve Guido Verbeke
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Patent number: 6753386Abstract: The present invention relates to a film forming composition, a method of forming the composition, and application of the composition to coating formulations which provide a cured coating having acid rain resistance. A film-forming polyurethane polyol composition comprises a reaction product of an n-functional isocyanate (wherein n is a number ranging from about 2 to about 5) with at least one diol or triol or mixtures thereof and a compound containing isocyanate-reactive functional groups, preferably a monofunctional alcohol or thiol. The low viscosity polyurethane polyol of the present invention is typically crosslinked/cured using a melamine to produce a cured coating which is highly acid etch resistant as well as having other desirable physical-mechanical properties. The coating compositions have improved flow characteristics compared to compositions containing polyurethane polyols prepared without the monofunctional alcohols or thiols.Type: GrantFiled: December 16, 1997Date of Patent: June 22, 2004Assignee: Akzo Nobel N.V.Inventors: Alexander Leo Yahkind, Ian Wagstaff, Frederick Herbert Walker
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Patent number: 6749943Abstract: A moisture curable, hot melt composition is described comprising the product of reacted components, the components comprising: (a) a semi-crystalline polyol; (b) an amorphous polyol comprising secondary hydroxyl groups; (c) a secondary aminosilane endcapper comprising secondary amino functionality; (d) an isocyanate; and (e) substantially no tin. A method for the manufacture of the moisture curable, hot melt adhesive and/or sealant composition is described as well as methods for using the adhesive.Type: GrantFiled: July 2, 2002Date of Patent: June 15, 2004Assignee: 3M Innovative Properties CompanyInventors: John C. Tangen, Robert D. Waid
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Patent number: 6713570Abstract: The present invention is directed to a moisture curable, hot melt adhesive coating and/or sealant composition. The composition comprises (a) a first isocyanate-terminated prepolymer comprising the reaction product of an at least essentially semicrystalline hydroxy-functional material (Component A) and a polyisocyanate; (b) a second isocyanate-terminated prepolymer comprising the reaction product of an essentially semicrystalline poly(tetramethylene ether) glycol that has a molecular weight of at least about 1000 (Component B) and a polyisocyanate; and (c) a third isocyanate-terminated prepolymer comprising the reaction product of an essentially amorphous hydroxy-functional material (Component C) and a polyisocyanate, the essentially amorphous hydroxy-functional material having an average functionality less than 2.5 and a Tg≦−20° C. All essentially amorphous hydroxy-functional materials in the composition have a Tg≦−20° C.Type: GrantFiled: July 30, 2001Date of Patent: March 30, 2004Assignee: 3M Innovative Properties CompanyInventor: John C. Tangen
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Patent number: 6710151Abstract: The end-blocked isocyanate prepolymer having an oxadiazine ring according to the present invention is characterized in that at least one of isocyanate groups of a NCO-terminated isocyanate prepolymer, which has NCO groups at the ends and comprises units derived from an oxadiazinetrione compound (A) represented by the following formula (1) and units derived from an active hydrogen compound (B) represented by the following formula (2), is blocked with a unit derived from an end-blocking agent (C) having at least one active hydrogen in one molecule, and that the end-blocked isocyanate prepolymer has a softening point of not lower than 50° C.Type: GrantFiled: November 12, 2002Date of Patent: March 23, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Toshiaki Kuwatsuka, Hideaki Ogata, Manabu Shimoda, Ryuuji Haseyama, Izumi Mega
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Patent number: 6709539Abstract: The present invention is a polyurethane prepolymer comprising the reaction product of: A) a polyisocyanate; B) one or more compounds or polymers having isocyanate-reactive moieties. C) a dispersion triol containing from about 10 to about 60 percent by weight based on the dispersion of particles of an organic polymer which is nonreactive with the polyols and polyisocyanates having a particle size of from about 5 to about 50 microns; wherein the prepolymer has a free isocyanate content of from about 0.8 to about 2.2 percent, the weight ratio of diol to triol and dispersion triol is from about 0.8 to about 1.2. In another embodiment the invention is a one-part adhesive composition comprising the polyurethane prepolymer of the invention and a catalyst capable of catalyzing the reaction of isocyanate moieties with water.Type: GrantFiled: August 7, 2001Date of Patent: March 23, 2004Assignee: Dow Global Technologies Inc.Inventor: Lirong Zhou
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Patent number: 6703452Abstract: The present invention relates to coating compositions which can be used as the clear coat for automotive finishing or refinishing, the coating composition containing a film-forming binder which contains (A) hydroxyl-containing acrylic polymer and polyhydroxyl-tertiary amine, (B) organic polyisocyanate, and (C) catalyst, to provide a coating film which is quick to cure at ambient temperature.Type: GrantFiled: November 9, 2001Date of Patent: March 9, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Gia Huynh-Ba
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Patent number: 6673875Abstract: An anaerobic adhesive composition having enhanced toughness and resistance to crack propagation, particularly subsequent to thermal exposure, comprising a combination of three monomers consisting of (a) at least one (meth) acrylate monomer, (b) at least one (meth)acrylate-terminated urethane modified acrylonitrile/butadiene prepolymer, and (c) at least one (meth)acrylate-terminated acrylic/polyisocyanate adduct.Type: GrantFiled: July 3, 2002Date of Patent: January 6, 2004Assignee: Henkel Loctite CorporationInventors: Shabbir Attarwala, Richard D. Rich, Natalie R. Li
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Patent number: 6660376Abstract: The present invention relates to a hot melt moisture cure adhesive composition well suited for bonding porous substrates such as fabric, methods of adhesively bonding substrates and corresponding articles. The adhesive composition exhibits a combination of flexibility, high green strength, low molten viscosity and high heat resistance. In view of these properties, the adhesive is particularly amendable to hot melt adhesive application techniques wherein small individual discrete deposits of adhesive are applied to a substrate. The adhesive composition prepolymer is preferably the reaction product of at least one polyol, at least one polyisocyanate and at least one high molecular weight thermoplastic polyurethane lacking hard segments.Type: GrantFiled: June 6, 2000Date of Patent: December 9, 2003Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: John M. Zimmel, William L. Bunnelle, Brendon J. Kryzer
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Patent number: 6652916Abstract: The invention relates to a coating material containing a binding agent and a cross-linking agent as well as a thixotropic agent based on ureas and/or ureas derivatives, whereby the coating material additionally contains a wetting agent that improves the wettability of the thixtropic agent.Type: GrantFiled: November 14, 2001Date of Patent: November 25, 2003Assignee: BASF Coatings AGInventors: Hubert Baumgart, Guido Schulze-Finkenbrink
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Publication number: 20030212217Abstract: Coating compositions and methods of making and using such coating compositions, for providing durability and repellency. The coating composition comprising a polyol, a polyisocyanate, and a fluorinated activator, optionally prepared from a polyol, a polyisocyanate and a perfluoroalkyl alcohol.Type: ApplicationFiled: May 8, 2002Publication date: November 13, 2003Inventors: Suresh Sawant, Bernard Morkunas
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Patent number: 6630211Abstract: The invention relates to the utilization of tricyclodecandimethanol for producing multilayer lacquers, in particular, multilayer transparent lacquer coatings, and as a binding agent in multilayer lacquers. The invention als relates to a coating substrance, especially transparent lacquer, containing at least one binding agent, at least one cross-linking agent and tricylodecandimethanol. In addition, the invention relates to a method for improving the adherence of the intermediate layer in multilayer transparent lacquer coatings.Type: GrantFiled: October 4, 2001Date of Patent: October 7, 2003Assignee: BASF Coatings AGInventors: Hubert Baumgart, Heinz-Peter Rink, Ulrike Röckrath, Thomas Farwick
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Patent number: 6596024Abstract: Biocompatible prostheses, specifically, biocompatible heart valves, are described which comprise a blend of a polyurethane (PU) and a polysiliconeurethane (PSU). Preferably, the polyurethane is a polyetherurethane (PEU). More preferably, it is a polyetherurethane urea (PEUU). Such prostheses typically exhibit reduced mineralization or thrombosis and/or reduced biological degradation.Type: GrantFiled: December 21, 2000Date of Patent: July 22, 2003Assignee: Carbomedics Inc.Inventor: Joseph Andrew Chinn
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Patent number: 6596820Abstract: A thermoplastic molding composition that contains a light-resistant aliphatic thermoplastic polyurethane elastomer is disclosed. The composition which largely contains of thermoplastic polyurethanes with high molecular weights and small amounts of thermoplastic polyurethanes with low molecular weights is useful for the preparation of a variety of articles and for use as sinterable composition in powder form.Type: GrantFiled: March 25, 2002Date of Patent: July 22, 2003Assignee: Bayer AktiengesellschaftInventors: Hanns-Peter Müller, Horst Gruttmann, Wolfgang Kaufhold, Henricus Peerlings
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Patent number: 6596819Abstract: A polyisocyanate curing agent for laminate adhesive, comprising: (A) an isocyanate group-terminated prepolymer having isocyanurate group and urethane group, obtained by reacting an organic polyisocyanate containing at least (a1) an aromatic diisocyanate with an active hydrogen group-containing compound containing at least (a2) a diol compound having a number-average molecular weight of 100 to 2,000, and, as an optional component, (B) an isocyanate group-terminated prepolymer having urethane group, and, also as an optional component, (C) a silane coupling agent represented by the following general formula (1): OCN—(CH2)m—Si(OR)3 (1) (wherein R is a methyl group or an ethyl group, and m is an integer of 1 to 5); and a process for producing the polyisocyanate curing agent. The polyisocyanate curing agent is usable in a laminate adhesive which can be aged in a short time without shortening the pot life, which has good adhesivity, and which can withstand a severe retort treatment.Type: GrantFiled: July 27, 2001Date of Patent: July 22, 2003Assignee: Nippon Polyurethane Industry Co., Ltd.Inventors: Yukihiro Morikawa, Ichiro Higashikubo, Kouji Yoshida, Toshiaki Sasahara
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Patent number: 6593435Abstract: The invention relates to methods for producing storage-stable, latent-reactive layers and powders of surface-deactivated, solid polyisocyanates and dispersions or aqueous solutions of isocyanate reactive polymers, which can be used as adhesives and coverings. Said dispersions, suspensions or aqueous solutions can applied to a substrate in an appropriate form. Water can then be eliminated at a temperature inferior to the reaction temperature of the isocyanates and this operation can take place at a temperature above the softening temperature of the polymers. This process produces, at ambient temperature, dry and substantially water free layers which are storage stable and can react with the polymers at the polyisocyanate reaction temperature.Type: GrantFiled: February 19, 2002Date of Patent: July 15, 2003Assignee: Bayer AGInventor: Thomas Abend
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Patent number: 6582824Abstract: A composition comprises a curable epoxy-containing material, a first thermoplastic polyurethane component, a curative for the epoxy-containing material, and optionally, a second thermoplastic polyurethane component that is different than the first thermoplastic polyurethane component. The compositions are useful for sealing discontinuities in a substrate surface, especially those found in motor vehicles. Sealant articles and methods of sealing discontinuities are also disclosed.Type: GrantFiled: March 30, 2001Date of Patent: June 24, 2003Assignee: 3M Innovative Properties CompanyInventors: Stefan Weigl, Gertrud A. Klein, Shuichi Kitano, Kotaro Shinozaki, Tomohiro Koiwa, Kazuyoshi Shiozaki
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Publication number: 20030109648Abstract: The invention relates to improved polyurethane ionomers and methods for making the same. It was found that the polyurethane anionomers obtained by using the method of the invention had improved physical properties than those made by conventional methods. For example, the polyurethane ionomers produced by the method of the invention exhibit a plateau in the plot of elasticity modulus (as log10E′) vs. temperature over a useful and relatively broad temperature and frequency range. The polyurethane ionomers have nearly temperature-independent elasticity over a 50° C. range in the region of ˜−20 to +75° C. Another advantage is that the polyurethane ionomers of the invention are optically clearer than the conventionally prepared polyurethane ionomers. A further advantage of the invention is that the synthetic process of making the polyurethane ionomers is much faster than the known process for equivalent compositions.Type: ApplicationFiled: July 1, 2002Publication date: June 12, 2003Inventors: William M. Risen, Mingzhe Wang
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Publication number: 20030109649Abstract: Disclosed herein is a method of making a golf ball by mixing a polyisocyanate copolymer and at least one other reactant, such as a polyol, to form a reaction product and reaction injection molding the reaction product to form at least one of a core and cover component. Preferably, the polyisocyanate copolymer includes an aromatic polyisocyanate and an aliphatic polyisocyanate. Most preferably, the polyisocyanate copolymer includes a copolymer of toluene diisocyanate and hexamethylene diisocyanate.Type: ApplicationFiled: July 10, 2002Publication date: June 12, 2003Applicant: Spalding Sports Worldwide, Inc.Inventors: Viktor Keller, Thomas J. Kennedy, William M. Risen, Michael J. Tzivanis
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Patent number: 6573341Abstract: A molded polyurethane body is obtainable by reacting: a) one or more aliphatic polyols having a molecular weight of 450 to 6000 g/mol and a hydroxyl value of 10 to 235; b) with aliphatic and/or cycloaliphatic diisocyanates in an equivalent ratio of diisocyanate to polyol of 1.2:1.0 to 16.0:1.0; c) with diols as chain lengthening agents having a molecular weight of 60 to 450 g/mol, the NCO index formed from the quotient, which is multiplied by 100, of the equivalent ratio of isocyanate groups to the sum of the hydroxyl groups of polyol and chain lengthening agents lying within a range of 90 to 105; and d) with an at least bifunctional reaction component, which is suitable for subsequent cross-linking.Type: GrantFiled: May 25, 2001Date of Patent: June 3, 2003Assignees: Carl Freudenberg KG, Magna Eybl Systemtechnik GmbHInventors: Horst Mühlfeld, Thomas Schauber, Silke Wagener
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Patent number: 6569944Abstract: The present invention relates to a process for preparing urethanes containing (meth)acryloyl groups that are suitable as binders for powder coatings by reacting a polyisocyanate component with a hydroxyl group-containing component that contains at least one compound additionally containing (meth)acryloyl groups in a melt of compounds containing (meth)acryloyl groups, which are crystalline in the solid state and have a melting point of 30 to 100° C. and a dynamic viscosity at 111° C. of less than 10 Pa·s, at elevated temperature until the NCO content has dropped below 0.5 wt. %. The present invention also relates to the use of these urethanes as binders for powder coating compositions for coating substrates made of wood, metal, plastics or mineral substances, which may have been primed.Type: GrantFiled: March 16, 2001Date of Patent: May 27, 2003Assignee: Bayer AktiengesellschaftInventors: Jan Weikard, Christian Zwiener, Wolfgang Fischer, Peter Thometzek
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Patent number: 6552100Abstract: A method of treating reaction injection molded polyurethane, polyurethane/urea and polyurea polymers comprising exposing a reaction injection molded polyurethane, polyurethane/urea or polyurea polymer to an amount of infrared energy sufficient to increase the temperature of the polymer to at least 175° C., and then maintaining the temperature of the polymer at or above that temperature, for a time sufficient to increase the Gardner impact property, as measured using ASTMD-3029, when compared to the same polymer which has been heated to the same temperature and maintained thereat for the same time in a convection oven. The invention produces marked improvements in impact, heat sag and heat distortion temperature properties, and thus is particularly suited to rapid preparation of parts using a mass production conveyor and is particularly well-suited to preparation of parts which are to be subjected to later high temperature processes, such as the “E-coat” process.Type: GrantFiled: February 8, 2001Date of Patent: April 22, 2003Assignee: The Dow Chemical CompanyInventors: John W. McLaren, Kenneth J. Rettmann
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Patent number: 6538075Abstract: The invention relates to thermoplastic polyurethane with a Shore hardness of 45A to 80A, a tensile strength, according to DIN 53504, higher than 5 Mpa, a tear strength, according to DIN 53515 higher than 30 N/mm and an abrasion according to DIN 53516 of less than 250 mm3.Type: GrantFiled: January 28, 2002Date of Patent: March 25, 2003Assignee: BASF AktiengesellschaftInventors: Ruediger Krech, Juergen Mueller, Norbert Pohlmann, Paul Sellig, Rolf Steinberger
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Patent number: 6512073Abstract: The present invention relates to novel binders for electrical insulating enamels, comprising at least one hydroxy- and/or amino-functional polyurethane containing urea and/or hydantoin groups, prepared by reacting: a) from 15 to 40 wt. % of an organic polyisocyanate or of a mixture of organic polyisocyanates, b) from 5 to 20 wt. % of at least one aspartic acid ester, and c) from 5 to 50 wt. % of a polyhydroxy compound having a molar weight from 62 to 3000 g/mol, in d) from 25 to 50 wt. % of a solvent or of a solvent mixture and at least one blocked isocyanate component containing ester, imide, amide, and/or urethane groups, at least one organic solvent, and optionally further auxiliary substances and additives whereby the resulting enamels being distinguished by high temperature stability and good solderability.Type: GrantFiled: October 15, 2001Date of Patent: January 28, 2003Assignee: Bayer AktiengesellschaftInventors: Rolf Gertzmann, Lutz Schmalstieg, Jan Mazanek, Bernd Hausstätter
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Publication number: 20020161159Abstract: This invention is comprised of a thermoplastic polyurethane elastomer fiber obtained by melt spinning a polyurethane having a rebound of 60% or greater and a isocyanate-terminated polyether or polyester additive. The elastic fibers have low shrinkage, high heat resistance, low tensile set, and high elongation.Type: ApplicationFiled: February 23, 2001Publication date: October 31, 2002Inventor: Ravi Ram Vedula
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Patent number: 6458892Abstract: A golf ball comprising a core, a cover, and at least one intermediate layer disposed between the core and the cover, wherein the core has a compression of less than about 60 and the intermediate layer is formed from a blend comprising a polyurethane material, wherein the golf ball has a compression of about 75 to about 85.Type: GrantFiled: August 1, 2000Date of Patent: October 1, 2002Assignee: Acushnet CompanyInventors: Murali Rajagopalan, Christopher Cavallaro, Kevin M. Harris, Jeffrey L. Dalton
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Publication number: 20020132934Abstract: The present invention relates to coating compositions which can be used as the clear coat for automotive finishing or refinishing, the coating composition containing a film-forming binder which contains (A) hydroxyl-containing acrylic polymer and polyhydroxyl-tertiary amine, (B) organic polyisocyanate, and (C) catalyst, to provide a coating film which is quick to cure at ambient temperature.Type: ApplicationFiled: November 9, 2001Publication date: September 19, 2002Inventor: Gia Huynh-Ba