With Ether Or Thioether Compound Containing At Least Two -c-x-c- Groups Patents (Class 528/76)
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Patent number: 6825376Abstract: The present invention relates to solvent-free, NCO prepolymers having a residual IPDI monomer content of less than 2.0 wt. %, an NCO content of 2.0 to 5.0 wt. % and a viscosity of 5000 to 20,000 mPa·s, wherein the NCO prepolymers are the reaction products of i) 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate and ii) one or more polyethers prepared by the DMC catalyst process and having an OH-functionality of 1.80 to 2.00 at an NCO/OH equivalent ratio of 1.5:1 to 2.2:1. The present invention also relates to a process for preparing these solvent-free, NCO prepolymers and to polyurethane coating, sealant, adhesive and/or embedding compositions containing the solvent-free, NCO prepolymers as a binder and/or binder component.Type: GrantFiled: December 11, 2002Date of Patent: November 30, 2004Assignee: Bayer AktiengesellschaftInventors: Steffen Hofacker, Rolf Gertzmann, Olaf Fleck, Gerhard Ruttmann, Hanno Brümmer
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Polyurethane elastomers having improved physical properties and a process for the production thereof
Patent number: 6824703Abstract: A polyol composition having a number average molecular weight of from about 1,000 to about 3,000 Daltons is made up of (1) at least 60% by weight of a low monol polyoxypropylene polyol having a number average molecular weight of from about 2,000 to 12,000 Da and a degree of unsaturation less than or equal to 0.02 meq/g and (2) no more than 40% by weight of a polyol having a number average molecular weight of from about 400 to about 1,000 Da and a polydispersity index greater than 1.1. This polyol composition is reacted with a diisocyanate, a polyisocyanate, an isocyanate-terminated prepolymer or an isocyanate-terminated quasi-prepolymer to produce polyurethane elastomers having good physical and mechanical properties. Any of the known processes for producing polyurethane elastomers, including one-shot processes, may be used to produce elastomers in accordance with the present invention.Type: GrantFiled: March 8, 2002Date of Patent: November 30, 2004Assignee: Bayer MaterialScience LLCInventors: Bruce D. Lawrey, Kurt C. Frisch, Nigel Barksby -
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: 6822042Abstract: A novel resin for binding composite lignocellulosic, cellulosic and non-cellulosic products is disclosed. The resin is comprised of one or more isocyanates, one or more saccharides, one or more polyols, and water. Preferaby, the saccharide is a polysaccharide comprised of corn syrup. Preferably, the isocyanate is a polyisocyanate and the polyol is an ethylene glycol. Also disclosed are methods for preparing and applying the resin as well as the products prepared from the resin.Type: GrantFiled: October 24, 2002Date of Patent: November 23, 2004Assignee: Temple-Inland Forest Products CorporationInventor: Charles L. Capps
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Patent number: 6815467Abstract: A method for producing a polyoxyalkylene polyol which comprises subjecting propylene oxide and ethylene oxide to ring-opening addition polymerization with an initiator in the presence of a catalyst, wherein the polyoxyalkylene polyol is a polyoxyalkylene polyol obtained by subjecting propylene oxide to ring-opening addition polymerization with an initiator in the presence of a double metal cyanide complex catalyst to form an oxypropylene block chain, subjecting ethylene oxide and propylene oxide to ring-opening addition polymerization randomly to form an oxyalkylene random chain, changing the catalyst and subjecting ethylene oxide to ring-opening addition polymerization in the presence of an alkali metal catalyst to form an oxyethylene block chain, and the polyoxyalkylene polyol is a polyoxyalkylene polyol having a hydroxyl value of from 5 to 56 mgKOH/g, a proportion of an initiator residue of at most 25 mass %, a proportion of the oxypropylene block chain of from 5 to 50 mass %, a total oxyethylene group cType: GrantFiled: July 18, 2002Date of Patent: November 9, 2004Assignee: Asahi Glass Company, LimitedInventors: Yoshinori Toyota, Akio Horie, Hiroshi Wada, Kayoko Sugiyama, Etsuko Akagi
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Patent number: 6815522Abstract: This thermoplastic elastomer is present in a substantially solid state suitable for use as a binder for a propellant, explosive, and/or gas generant of a supplemental restraint system. The thermoplastic elastomer is formed from a composition including A blocks which are crystalline at temperatures below about 75° C. and B blocks which are amorphous at temperatures above about −20° C. The A blocks are derived from oxetane derivatives and/or tetrahydrofuran derivatives. The B blocks are derived from oxetanes, tetrahydrofuran, oxiranes, and derivatives thereof. The A and B blocks are end-capped with at least one diisocyanate and linked with at least one difunctional oligomer having two functional groups which are reactive with free and unreacted isocyanate moieties of the diisocyanate.Type: GrantFiled: November 9, 1999Date of Patent: November 9, 2004Assignee: Alliant Techsystems Inc.Inventors: Andrew J. Sanderson, Wayne Edwards
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Publication number: 20040220371Abstract: Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hydroxyl groups and/or amine groups. These elastomer compositions can be used in any one or more portions of the golf balls, such as inner center, core, inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.Type: ApplicationFiled: June 2, 2004Publication date: November 4, 2004Inventor: Shenshen Wu
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Patent number: 6809152Abstract: A golf ball comprising a cover and a core, and at least one intermediate layer interposed between the cover and the core, wherein the cover is formed from a blend comprising of a segmented polyurethane elastomer copolymers of polyether (or ester)-ester and polyether (or ester)-amide.Type: GrantFiled: October 21, 2002Date of Patent: October 26, 2004Assignee: Acushnet CompanyInventors: Kevin M Harris, Murali Rajagopalan
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Publication number: 20040210027Abstract: Provided are a shape memory polymer composition, which comprises a bifunctional isocyanate and/or a trifunctional isocyanate, and a polyol having an average molecular weight of from 100 to 550, with a molar ratio in terms of functional groups of isocyanate:polyol=0.9 to 1.1:1.0; FRP having the shape memory polymer and a fibrous material; and a production process of the FRP comprising impregnating the fibrous material with, as a matrix resin, the shape memory polymer composition and curing. According to the present invention, the shape memory polymer composition has an extended pot life and FRP has excellent inflatability.Type: ApplicationFiled: March 15, 2004Publication date: October 21, 2004Applicant: MITSUBISHI HEAVY INDUSTRIES. LTDInventors: Noriya Hayashi, Shunichi Hayashi, Norio Miwa, Toshikatsu Nohara
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Publication number: 20040210026Abstract: Isocyanate-functional polyurethane prepolymers and aqueous dispersions therefrom which are useful for the production of flat materials having excellent resistance to alcoholic solvents are described.Type: ApplicationFiled: October 2, 2003Publication date: October 21, 2004Inventors: Eduard Mayer, Thomas Muenzmay, Yuliya Berezkin, Poli C. Yu, Richard R. Roesler, Mary A. Crisci
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Publication number: 20040210028Abstract: The present invention provides an NCO prepolymer as described herein. The NCO prepolymer of the present invention finds use in preparing elastomeric coatings, adhesives, sealants and the like.Type: ApplicationFiled: May 10, 2004Publication date: October 21, 2004Inventors: William E. Slack, Edward P. Squiller, P. Richard Hergenrother
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Publication number: 20040210025Abstract: Water-soluble films suitable for water-dissolvable packaging comprising a polyurethane polymer having defined amounts of poly(ethylene oxide) (and optionally poly(propylene oxide)) groups and acid (preferably carboxyl) groups at least 50% neutralised with a base, at least a proportion of which is of the non-volatile type, the polyurethane being made by chain extension of a urethane prepolymer. Also water-soluble packaging (sachets, capsules, bags) made from the films and their use in packaging various materials, and a process for the production of aqueous polyurethane solutions which may be used for making such films.Type: ApplicationFiled: December 10, 2003Publication date: October 21, 2004Inventors: David Charles Hinde, Gerardus Cornelis Overbeek, John Christopher Padget, Phillip Cheshire, Terence Yeates, Yvonne Wilhelmina Smak
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Patent number: 6806341Abstract: A method of applying an adhesive to a substrate is disclosed which utilizes a hydrophilic, high molecular weight, nonionic polyurethane adhesive. The polyurethane adhesive is soluble in water and a 1% by weight solution of the adhesive in water at 20% has a specific viscosity of at least 0.4.Type: GrantFiled: May 24, 2002Date of Patent: October 19, 2004Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Herbert Fischer, Winfried Emmerling, Thomas Moeller, Hermann Onusseit, Werner Haller, Bernhard Schoettmer, Bernhard Herlfterkamp, Dieter Feustel, Klaus Friedrich, Hartmut Buesching, Norbert Huebner
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Patent number: 6806323Abstract: Disclosed is a golf ball having a cover formed from a thermoplastic polyurethane material which can be recycled for molding, which exhibits high restitution, and which exhibits excellent scuff resistance. The cover is formed from a composition (C) containing, as predominant components, the following components (A) and (B): (A) a thermoplastic polyurethane material having a restitution elastic modulus of at least 40% and containing, as a polymeric polyol, a polyether polyol having an average molecular weight of at least 1,500, and (B) an isocyanate mixture in which an isocyanate compound (b-1) having at least two isocyanate groups serving as functional groups in the molecule is dispersed in a thermoplastic resin (b-2) which is substantially non-reactive with the isocyanate groups.Type: GrantFiled: May 7, 2002Date of Patent: October 19, 2004Assignee: Bridgestone Sports Co., Ltd.Inventors: Yasushi Ichikawa, Rinya Takesue
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Publication number: 20040197481Abstract: The present invention provides a urethane prepolymer and method of making said prepolymer useful in forming a moisture curable coating on an object. The prepolymer of the present invention is made by the process comprising reacting a HDI-uretidione with a polyol such that a moisture-curable urethane prepolymer having a viscosity at 25° C. less than about 3000 cP is formed. Moreover, the HDI-uretidione and the polyol are of sufficient amounts that the reaction index is at least about 2. The present invention also provides a method of coating a substrate with the prepolymer of the present invention.Type: ApplicationFiled: April 2, 2003Publication date: October 7, 2004Inventors: Peter J. Whitman, Daniel B. Pourreau, Michael J. Morgan, Stephen L. Goldstein
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Publication number: 20040192841Abstract: High green strength reactive hot melt adhesives are prepared including an effective amount of a visible dye that will not alter the open time, green strength, viscosity, adhesion properties or stability of the adhesive.Type: ApplicationFiled: March 26, 2003Publication date: September 30, 2004Inventors: Yongxia Wang, Nikola A. Nikolic, Justin O. Mills
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Patent number: 6797799Abstract: The present invention provides NCO prepolymers comprising the reaction product of (1) an allophanate-modified diphenylmethane diisocyanate having an NCO group content of 12 to 32.5% by weight and comprising the reaction product of, (a) an aliphatic alcohol or an aromatic alcohol; and (b) diphenylmethane diisocyanate comprising: (i) from 10 to 60% by weight of 2,4′-diphenylmethane diisocyanate, (ii) less than 6% by weight of 2,2′-diphenylmethane diisocyanate, and (iii) the balance being 4,4′-diphenylmethane diisocyanate, wherein the sum of the percentages by weight of (1)(b)(i), (1)(b)(ii), and (1)(b)(iii) total 100% by weight of (1)(b), and (2) a polyether polyol having a molecular weight of 134 to 10,000, an OH number of 420 to 14, and a functionality of at least 1.8. The NCO prepolymers of the present invention find use in preparing elastomeric coatings, adhesives, sealants, and the like.Type: GrantFiled: April 2, 2003Date of Patent: September 28, 2004Assignee: Bayer Materialscience LLCInventors: William E. Slack, Edward P. Squiller, P. Richard Hergenrother
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Patent number: 6793864Abstract: A novel composition useful for golf ball covers that comprises a blend of a diisocyanate/polyol polyurethane prepolymer with a curing agent comprising a blend of slow-reacting diamine with a fast-reacting diamine such as dimethylthio 2,4-toluenediamine and diethyl 2,4-toluenediamine, respectively. A golf ball cover made with this composition exhibits the characteristic feel and playability of a balata cover with superior durability characteristics (cut and shear resistance) which exceed those of a balata or ionomer cover.Type: GrantFiled: February 4, 1998Date of Patent: September 21, 2004Assignee: Dunlop SportsInventors: Pijush K. Dewanjee, Michael Tzivanis
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Patent number: 6790925Abstract: The present invention relates to polyaspartate mixtures containing a) 5 to 50 equiv. %, based on the total equivalents of aspartate groups, of a polyoxypropylene polyaspartate corresponding to the formula wherein X1 represents the residue obtained by removing the amino groups from a polyoxypropylene polyamine having a functionality of n, R1 and R2 are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100° C. or less, R3 and R4 are identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less and n is 2 to 4, and b) 50 to 95 equiv.Type: GrantFiled: December 5, 2002Date of Patent: September 14, 2004Assignees: Bayer Polymers LLC, Bayer AktiengesellschaftInventors: Karsten Danielmeier, Catherine M. Britsch, Rolf Gertzmann, Michele E. Vargo, Terrell D. Wayt, Edward P. Squiller, Richard R. Roesler
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Patent number: 6787626Abstract: A curative blend for a thermosetting polyurethane material that allows for a polyurethane material with greater durability is disclosed herein. The curative blend is composed of 4,4′-methylenebis-(2,6-diethyl)-aniline and a second curing agent selected from the group consisting of N,N′-bis-alkyl-p-phenylenediamine, N,N′-dialkylamino-diphenylmethane with tetrapropoxylated ethylenediamine and an aliphatic diamine. A preferred polyurethane prepolymer is polytetramethylene ether glycol terminated toluene diisocyanate prepolymer. The thermosetting polyurethane is preferably utilized as a cover for a golf ball. The cover is preferably formed over a core and boundary layer.Type: GrantFiled: August 9, 2002Date of Patent: September 7, 2004Assignee: Callaway Golf CompanyInventor: Pijush K. Dewanjee
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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: 6777524Abstract: Disclosed is a polyether polyurethane comprising (A) at least one polyisocyanate having two or more isocyanate groups, which is selected from the group consisting of an aromatic polyisocyanate and an aliphatic polyisocyanate; (B) a polyoxytetramethylene glycol (PTMG) having a number average molecular weight of from 500 to 4,000, a molecular weight distribution (Mw/Mn) of 1.75 or less, and a content of high molecular weight PTMG molecules of 10% by weight or less; and (C) at least one chain extender selected from the group consisting of a C2-C10 polyol having two or more hydroxyl groups and a C2-C10 polyamine having two or more amino groups. Also disclosed is a urethane prepolymer which comprises the above-mentioned components (A) and (B) and which has terminal isocyanate groups.Type: GrantFiled: February 19, 2002Date of Patent: August 17, 2004Assignee: Asahi Kasei Kabushiki KaishaInventors: Atsushi Shimizu, Mutsuhisa Furukawa, Kiyoo Kato, Yoshiyuki Asahina
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Patent number: 6776287Abstract: Water-soluble films suitable for water-dissolvable packaging comprising a polyurethane polymer having defined amounts of poly(ethylene oxide) (and optionally poly(propylene oxide)) groups and acid (preferably carboxyl) groups at least 50% neutralised with a base, at least a proportion of which is of the non-volatile type, the polyurethane being made by chain extension of a urethane prepolymer. Also water-soluble packaging (sachets, capsules, bags) made from the films and their use in packaging various materials, and a process for the production of aqueous polyurethane solutions which may be used for making such films.Type: GrantFiled: November 22, 2000Date of Patent: August 17, 2004Assignee: Aquasol LimitedInventors: David Charles Hinde, Gerardus Cornelis Overbeek, John Christopher Padget, Phillip Cheshire, Terence Yeates, Yvonne Wilhelmina Smak
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Patent number: 6774206Abstract: The present invention relates to polyaspartates corresponding to the formula wherein X1 represents the residue obtained by removing the amino groups from a polyether polyamine having a functionality of n and a number average molecular weight of less than 600, wherein the amino groups are attached to primary carbon atoms and the ether groups are separated by at least two carbon atoms, R1 and R2 are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100° C. or less, R3 and R4 are identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less and n is 2 to 4. The present invention also relates to polyureas prepared by reacting the polyaspartates and optionally other isocyanate-reactive compounds with polyisocyanates.Type: GrantFiled: September 26, 2002Date of Patent: August 10, 2004Assignees: Bayer Polymers LLC, Bayer AktiengesellschaftInventors: Karsten Danielmeier, Catherine M. Britsch, Rolf Gertzmann, Michele E. Vargo, Terrell D. Wayt, Edward P. Squiller
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Patent number: 6774207Abstract: The present invention relates to polyaspartate mixtures containing a) 5 to 70 equiv. %, based on the total equivalents of aspartate groups, of a cyclic polyaspartate corresponding to the formula wherein X1 represents the residue obtained by removing the amino groups from a cyclic polyamine having a functionality of n, R1 and R2 are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100° C. or less, R3 and R4 are identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less and n is 2 to 4, and b) 30 to 95 equiv.Type: GrantFiled: September 26, 2002Date of Patent: August 10, 2004Assignees: Bayer Polymers LLC, Bayer AktiengesellschaftInventors: Karsten Danielmeier, Catherine M. Britsch, Rolf Gertzmann, Michele E. Vargo, Terrell Dean Wayt, Edward P. Squiller, Richard R. Roesler
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Publication number: 20040152861Abstract: The present invention relates to a method for preparing oligomeric aliphatic diols, polycarbonatediols based thereon and NCO-terminated prepolymers obtainable therefrom. The inventive compounds may find use in the preparation of polyurethanes.Type: ApplicationFiled: January 22, 2004Publication date: August 5, 2004Inventors: Hartmut Nefzger, Erika Bauer, Manfred Schmidt, Hans-Dieter Ruprecht, James-Michael Barnes
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Patent number: 6770730Abstract: A compact veneer is based on a reaction mixture comprising a) isocyanate, b) as compounds which are reactive toward isocyanates, a mixture (b1) comprising: b11) from 15 to 90% by weight, preferably from 50 to 80% by weight, based on the weight of the mixture (b1), of at least one polyether polyalcohol having a molecular weight of from 400 to 6000, preferably from 1000 to 4000 and a mean functionality of from 1.5 to 3 and based on hydroxyl-containing initiator substances and propylene oxide and also, if desired, ethylene oxide, b12) from 0 to 20% by weight, preferably from 0 to 10% by weight, based on the weight of the mixture (b1), of at least one polyether polyalcohol having a molecular weight of from 400 to 6000, preferably from 400 to 4000, and a mean functionality of from 1.Type: GrantFiled: November 15, 1999Date of Patent: August 3, 2004Assignee: BASF AktiengesellschaftInventors: Peter Roche, Thomas Bartz, Georg Knoblauch
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Publication number: 20040147707Abstract: Polyurethane gels, a reaction system for preparing the gels, and a process for producing polyurethane gels. The reaction system comprises a polyisocyanate composition and an isocyanate-reactive composition comprising a relatively high molecular weight mono-ol and a relatively low molecular weight polyol having a nominal isocyanate-reactive functionality of at least 3. The gels do not require the use of plasticizers. The reaction system and process offer a surprising combination of long working time and rapid cure.Type: ApplicationFiled: November 18, 2003Publication date: July 29, 2004Inventor: Christopher A Arendoski
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Publication number: 20040147704Abstract: The invention relates to novel blocked polyurethane prepolymers, to a process for their preparation, to reactive systems prepared therefrom that cure at room temperature, and to their use.Type: ApplicationFiled: December 17, 2003Publication date: July 29, 2004Inventors: Kamelia Detig-Karlou, Joachim Simon, Michael Mager, Thomas Stingl, Christoph Gurtler, Michael Schelhaas
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Patent number: 6765080Abstract: This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having an NCO group content of about 5 to about 30%, with an isocyanate-reactive component comprising a high molecular weight amine-terminated polyether polyol, an aromatic diamine chain extender, and, optionally, a chain extender or crosslinker selected from the group consisting of aliphatic amine terminated polyether polyols and aliphatic hydroxyl terminated polyether polyols, optionally, in the presence of an internal mold release agent, a surfactant and a filler.Type: GrantFiled: June 6, 2002Date of Patent: July 20, 2004Assignee: Bayer CorporationInventors: Michael S. Super, David D. Steppan, William E. Slack, Bruce H. Potts, Michael F. Hurley
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Publication number: 20040138401Abstract: The present invention relates to a sulfur-containing polyureaurethane and a method of preparing said polyureaurethane. In an embodiment, the sulfur-containing polyureaurethane adapted to have a refractive index of at least 1.57, an Abbe number of at least 32 and a density of less than 1.3 grams/cm3, when at least partially cured.Type: ApplicationFiled: December 2, 2003Publication date: July 15, 2004Inventors: Nina Bojkova, Robert A. Smith, Robert D. Herold, Chandra Rao, William H. McDonald, Vidhu J. Nagpal, Marvin J. Graham, Phillip C. Yu, Suresh Sawant, Michael O. Okoroafor
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Publication number: 20040138403Abstract: The present invention relates to new hydrophilicized blocked polyisocyanates, a process for preparing them and their use.Type: ApplicationFiled: December 17, 2003Publication date: July 15, 2004Inventors: Thorsten Rische, Christoph Gurtler, Karin Naujoks, Thomas Feller
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Patent number: 6762241Abstract: The invention relates to polyurethane solutions with alkoxysilane structural units, processes for the preparation of polyurethane solutions containing alkoxysilane structural units and the use of polyurethane solutions containing alkoxysilane structural units.Type: GrantFiled: September 21, 2001Date of Patent: July 13, 2004Assignee: Bayer AktiengesellschaftInventors: Harald Blum, Detlef-Ingo Schütze
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Patent number: 6762273Abstract: A curative blend for a thermosetting polyurethane material that allows for a polyurethane material with greater durability is disclosed herein. The curative blend is preferably composed of N,N″-dialkylamino-diphenyl-methane in an amount of 25 to 75 parts per one hundred parts of the curative blend and 4,4″-methylenebis-(2,6-diethyl)-aniline in an amount of 25 to 75 parts per one hundred parts of the curative blend. A preferred polyurethane prepolymer is polytetramethylene ether glycol terminated toluene diisocyanate prepolymer. The thermosetting polyurethane is preferably utilized as a cover for a golf ball. The cover is preferably formed over a core and boundary layer.Type: GrantFiled: May 31, 2002Date of Patent: July 13, 2004Assignee: Callaway Golf CompanyInventor: Pijush K. Dewanjee
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Patent number: 6756468Abstract: Cmpositions for coatings having a dry content higher than 80%, preferably of about 85-90% by weight, based on polyisocyanates and PFPEs, completely crosslinkable also in a range of temperatures between 5° C. and 20° C., comprising the following components: Component 1): mixture comprising: 1.a) Partially fluorinated prepolymers, having free NCO groups, obtained by reaction of (per)fluoropolyethers (PFPEs) diols having number average molecular weight Mn in the range 800-1,300 with the cyclic trimer of the isophorondiisocyanate, 1.b) non cyclic isocyanic trimer of hexamethylendiisocyanate, Component 2): (per) fluoropolyether (PFPE) diol with Mn in the range 350-700, preferably 500-650, component 3): inert organic solvent in crosslinking conditions, complement to 100% by weight of the composition.Type: GrantFiled: January 12, 2001Date of Patent: June 29, 2004Assignee: Ausimont S.p.A.Inventors: Stefano Turri, Carlo Pogliani
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Patent number: 6753402Abstract: Polyester-polyether block copolymers can be prepared by catalytic addition of alkylene oxides onto H-functional initiator substances, using polyester alcohols as H-functional initiator substances and multimetal cyanide compounds as catalysts.Type: GrantFiled: April 10, 2002Date of Patent: June 22, 2004Assignee: BASF AktiengesellschaftInventors: Stephan Bauer, Georg Heinrich Grosch, Gerlinde Tischer, Kathrin Harre, Eva Baum, Thomas Ostrowski, Reinhard Lorenz, Regina Pretzsch, Michael Pcolinski, Stefan Dinsch, Inge Rotermund
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Patent number: 6740706Abstract: The invention relates to an economical method of making a polymer having reduced VOCs and coating compositions containing such polymers. In one embodiment, the method of invention requires providing a reactant mixture (a), providing a solvent mixture (b) comprising a reactive component (c) which is substantially free of any heteroatoms and is not a crystalline solid at room temperature and comprises (i) from 12 to 72 carbon atoms, and (ii) at least two functional groups, and subjecting the reactant mixture (a) in the solvent mixture (b) to polymerization conditions sufficient to polymerize reactant mixture (a) to provide a mixture (d) of a polymer (a′) in solvent mixture (b), wherein reactive component (c) under the polymerization conditions is substantially nonreactive: (1) with the components of reactive mixture (a), (2) in the polymerization of reactant mixture (a) and (3) with the polymer (a′).Type: GrantFiled: December 7, 2001Date of Patent: May 25, 2004Assignee: BASF CorporationInventors: Walter H. Ohrbom, Robert D. Weise, James A. Laugal
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Patent number: 6737498Abstract: A golf ball comprising a core, a cover, and at least one intermediate layer disposed between the core and the cover, wherein the intermediate layer includes a segmented polyurethane elastomer copolymers.Type: GrantFiled: October 21, 2002Date of Patent: May 18, 2004Assignee: Acushnet CompanyInventors: Kevin M Harris, Murali Rajagopalan
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Patent number: 6737471Abstract: A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that their preparation is carried out in the presence of at least one esters of monobasic carboxylic acid or polybasic carboxylic acids, the (first) dissociation constant (pK) of which is 0.5 to 4.Type: GrantFiled: December 14, 2001Date of Patent: May 18, 2004Assignee: Bayer AktiengesellschaftInventors: Klaus Lorenz, Marc Schütze, Erhard Michels, Alexander Eckhardt
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Patent number: 6734274Abstract: A urethane composition for making a sheet transport roll, the composition comprising: (A) a polyether polyol blend containing polytetramethyleneether glycol (PTMG) and polypropylene glycol (PPG) in a weight ratio of PTMG/PPG=99/1 to 50/50; (B) a polyisocyanate; and (C) a chain lengthening agent; the urethane composition in a cured state having a hardness of not smaller than 40, and a crosslinking density of 0.15 to 0.8 mmol/cm3 or an allophanate bond concentration of 0.03 to 0.07 mmol/g.Type: GrantFiled: August 29, 2001Date of Patent: May 11, 2004Assignee: Tokai Rubber Industries, Ltd.Inventors: Satoshi Suzuki, Hitoshi Yoshikawa, Yoshihiro Wago, Keita Shiraki
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Patent number: 6734273Abstract: Thermoplastic polyurethane compositions are prepared from polyols having high secondary hydroxyl content, diisocyanates, chain extenders and catalysts. The resulting polyurethanes have high molecular weight and can be prepared by a one-shot process wherein the reactants and any additional desired components are brought together and reacted simultaneously or substantially simultaneously.Type: GrantFiled: February 12, 2001Date of Patent: May 11, 2004Assignee: Noveon IP Holdings Corp.Inventor: Kemal Onder
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Patent number: 6730768Abstract: A method for preparing a polyol useful in the formation of an isocyanate casting resin or coating composition is presented involving the reaction of an essentially C18 fatty acid mixture with a monofunctional alcohol to form a fatty acid ester mixture, forming a epoxidized fatty acid ester mixture from the fatty acid ester mixture, and reacting the epoxidized mixture with an aliphatic alcohol to form a polyol. The polyol can be further reacted with an isocyanate to form a casting resin or coating composition. The fatty acid mixture contains at least 80 percent oleic acid. Polyols prepared by this method provide good color quality and improved color stability during storage when used in the production of isocyanate casting resins and coating compositions.Type: GrantFiled: May 11, 1999Date of Patent: May 4, 2004Assignee: Cognis Deutschland GmbH & Co. KGInventors: Andreas Heidbreder, Roland Gruetzmacher, Ulrich Nagorny, Alfred Westfechtel
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Publication number: 20040081830Abstract: The present invention relates to a polyurethane surface and more specifically to a polyurethane surface derived from the catalyzed reaction of equivalent volumes of a polyisocyanate component and an active hydrogen component. The two-component system achieves optimal gel time and cure response for application as an athletic surface having an isocyanate index between about 105 and 115. Moreover, the present invention achieves these results with a 1:1 by volume two-component system, which minimizes mixing errors during application of the surface.Type: ApplicationFiled: October 29, 2002Publication date: April 29, 2004Inventor: Tim Croley
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Patent number: 6723836Abstract: To provide low odor polyoxyalkylene polyol, a process for producing the same, and a low odor urethane prepolymer and a low odor urethane composition using the same as a raw material. The low odor polyoxyalkylene polyol comprising polyoxyalkylene polyol with amine added thereto, the amine having at least one amino group represented by the following formula (1): is provided, wherein R1, R2 and R3 independently represent hydrogen atom or an organic group which may contain a hetero atom in which an atom bonded to nitrogen atom is carbon atom.Type: GrantFiled: April 20, 2000Date of Patent: April 20, 2004Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kiminori Araki, Kazunori Ishikawa
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Patent number: 6720402Abstract: Shape memory polymer compositions, articles of manufacture thereof, and methods of preparation and use thereof are described. The shape memory polymer compositions can hold more than one shape in memory. Suitable compositions include at least one hard segment and at least one soft segment. At least one of the hard or soft segments can contain a crosslinkable group, and the segments can be linked by formation of an interpenetrating network or a semi-interpenetrating network, or by physical interactions of the blocks. Objects can be formed into a given shape at a temperature above the Ttrans of the hard segment, and cooled to a temperature below to Ttrans of the soft segment. If the object is subsequently formed into a second shape, the object can return to its original shape by heating the object above the Ttrans of the soft segment and below the Ttrans of the hard segment.Type: GrantFiled: May 8, 2002Date of Patent: April 13, 2004Assignee: MnemoScience GmbHInventors: Robert S. Langer, Andreas Lendlein
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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: 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: 6709748Abstract: The present invention provides a flexible two component polyurethane and method for producing the polyurethane. The cured polyurethane is flexible, durable and weather resistant. The polyurethane is suitable for use as a protective layer on various substrates. The flexible polyurethane is the reaction product of solvent-free reaction components. The first component includes one or more polyols, optionally, one or more diols, and a catalyst. The second component includes a primary aliphatic isocyante crosslinker.Type: GrantFiled: November 10, 2000Date of Patent: March 23, 2004Assignee: 3M Innovative Properties CompanyInventors: Chia-Tie Ho, Clarence Fullbright, Jr.
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Patent number: 6706807Abstract: A thermoplastic moulding composition that contains an aliphatic thermoplastic polyurethane (TPU) resin is disclosed. The TPU is the product of a reaction of A) a diisocyanate reactant that contains predominantly hexamethylene diisocyanate, and B) a polyol reactant that contains polytetramethylene glycol and C) a chain extending reactant that contains primarily 1,6-hexanediol. The TPU that is further characterized in the equivalence ratio of A to B and NCO index exhibits improved properties.Type: GrantFiled: September 10, 2002Date of Patent: March 16, 2004Assignee: Bayer AktiengesellschaftInventors: Wolfgang Kaufhold, Henricus Peerlings, Hans-Georg Hoppe
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Patent number: 6706844Abstract: A method for the production of polyurethane products using very low unsaturation polyether polyols prepared in the presence of aluminum phosphonate catalysts is disclosed. Reaction products of the process include various polyurethane products including foams, coatings, adhesives, sealants and elastomers. The aluminum phosphonate catalyst preferably has a general structure of RPO-(OAlR′R″)2, wherein O represents oxygen, P represents pentavalent phosphorous, Al represents aluminum, R comprises a hydrogen, an alkyl group, or an aryl group, and R′ and R″ independently comprise a halide, an alkyl group, an alkoxy group, an aryl group, or an aryloxy group.Type: GrantFiled: December 21, 2001Date of Patent: March 16, 2004Assignee: BASF CorporationInventor: Edward M. Dexheimer