Material Contains Only One -c-xh,-c-c(=x)-xh Or Carbon To -nh Or Hnh Group Patents (Class 528/49)
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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: 7041711Abstract: To provide a polymerizable composition suitable for a lithographic printing plate precursor which can satisfy the requirements of high sensitivity, excellent storage stability and long press life and enables direct plate making from digital data from computer, etc. when recording is conducted a solid laser or semiconductor laser emitting ultraviolet ray, visible light or infrared ray and a compound therefore, the present invention relates to a photoradical polymerizable composition comprising a polyfunctional crosslinking agent having a specific structure represented by formula (I) or (II) defined in the specification.Type: GrantFiled: March 5, 2004Date of Patent: May 9, 2006Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazuto Kunita
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Patent number: 7030205Abstract: The present invention is directed to a solid chelating resin consisting of a reactive hydrophobic backbone having pendent carbodithioic groups. Preferably the resin is a poly(dithiocarbamate) containing no tertiary nitrogen groups. The invention is also directed to a novel process for making a chelating resin involving a) reacting a nucleophilic compound with carbon disulfide in a suitable solvent, to form a carbodithioic acid, b) neutralizing the carbodithioic acid with a base to form a carbodithioic acid salt; and c) reacting said carbodithioic acid salt with a crosslinking reagent in a suitable solvent to form a solid chelating resin. The chelating resin is useful in removing metals and cationic compounds from effluent streams.Type: GrantFiled: October 4, 2001Date of Patent: April 18, 2006Assignee: National Starch and Chemical Investment Holding CorporationInventors: Alvie L. Foster, Jr., Ivonne C. Weidner, Maurice R. Smith
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Patent number: 7022767Abstract: The present invention provides a composition of matter having the structure: where Q is a multi-valent organic moiety containing isocyanurate functionality; X is H, —CH2OH, or —CH2OR?; R? is an alkyl or aryl group having from 1 to 12 carbon atoms; and y is at least 2. Also provided is a curable composition containing the composition of matter.Type: GrantFiled: February 5, 2004Date of Patent: April 4, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Michael A. Mayo, Steven V. Barancyk, Jane N. Valenta, Sherry M. Gaggini, William A. Humphrey
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Patent number: 7019061Abstract: A polyurethane which contains, as incorporated units, a) at least one diisocyanate, b) at least one polyether having two active hydrogen atoms per molecule and c) at least one compound of the formula I R1—Z1??(I) where R1 is C8- to C30-alkyl, C8- to C30-alkenyl, aryl-C6–C22-alkyl or aryl-C6–C22-alkenyl, the alkyl group having 1, 2, 3 or 4 nonneighboring double bonds, and Z1 is OH, SH or NHR2, R2 being hydrogen, C1- to C6-alkyl or C5- to C8-cycloalkyl, and its use are described.Type: GrantFiled: May 7, 2001Date of Patent: March 28, 2006Assignee: BASF AktiengesellschaftInventors: Helmut Meffert, Son Nguyen Kim
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Patent number: 7019070Abstract: An aqueous coating composition having a pH of 6.0–10.0 comprises 30% to 70% by weight of film-forming binder and correspondingly 70% to 30% by weight of an aqueous liquid carrier for the binder; wherein the binder comprises a. 20% to 95% by weight, based on the weight of the binder, of a urethane oligomer having a weight average molecular weight of 300 to 2500 and having acid functionality and neutralized with an amine and to form a water-dispersible product; and b. 5% to 80% by weight, based on the weight of the binder, of a water-compatible alkylated melamine formaldehyde crosslinking agent; finishes formed from the composition have good gloss and distinctness of image and excellent acid etch and mar resistance.Type: GrantFiled: June 13, 2002Date of Patent: March 28, 2006Assignee: E. I. dupont de Nemours and CompanyInventors: Ding Yu Chung, Peter W. Uhlianuk, Donald A. Paquet, Jr.
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Patent number: 7009025Abstract: An optical material, particularly a plastic lens for spectacles, which absorbs almost all UV rays of up to around 400 nm or so and is not too yellow in color, is obtained by adding 2-(2-hydroxy-4-octyloxyphenyl)-benzotriazole to a diethylene glycol bisallylcarbonate monomer, a (thio)urethane monomer or an episulfide monomer, mixing them, and polymerizing the monomer.Type: GrantFiled: January 5, 2004Date of Patent: March 7, 2006Assignee: Hoya CorporationInventor: Masahisa Kosaka
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Patent number: 7001975Abstract: A hydrophilic or hydrophobic polyurethane containing on average per molecule at least one olefinically unsaturated structural unit selected from the group consisting of pendant, internal, and terminal, acyclic and cyclic terpene units; graft copolymers of the polyurethane with olefinically unsaturated monomers, processes for preparing the polyurethane and the graft copolymers, and their use for preparing coating materials, adhesives, and sealing compounds.Type: GrantFiled: September 12, 2002Date of Patent: February 21, 2006Assignee: BASF Coatings AGInventors: Wolfgang Bremser, Thomas Krüger, Wilma Löcken, Peter-Heinz Rink, Stephan Schwarte
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Patent number: 6995192Abstract: The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or a mixture thereof, wherein the isocyanate-capped polyurethane is a copolymerization production of: (a) at least one polyalkylene glycol; (b) at least one branching agent having at least three hydroxy groups; and (c) at least one di- or polyisocyanate. The radiation-curable prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a radiation-curable prepolymer of the invention and for making a medical device, preferably an ophthalmic device, more preferably a contact lens.Type: GrantFiled: August 13, 2003Date of Patent: February 7, 2006Assignee: Novartis AGInventors: John Christopher Phelan, Michael Hugh Quinn, Joshua Andrew Wallach
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Patent number: 6956074Abstract: There is a provided a polyurethane composition, which exhibits an excellent property of preventing discoloring or coloring not only by oxidized nitrogen gases but also by heat, characterized in that (A) a hindered phenol antioxidant, and (B) an amide represented by the following general formula (I): R1—CONH2??(I) wherein R1 represents an alkyl group having 12 to 21 carbon atoms is compounded in the polyurethane.Type: GrantFiled: August 19, 1999Date of Patent: October 18, 2005Assignee: Sumitomo Chemical Company, Ltd.Inventors: Kenji Kimura, Kanako Fukuda, Mutsuko Higo, Kunihito Miyake
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Patent number: 6939938Abstract: Novel water-soluble or water-dispersible amphiphilic cationic associative polymers, a process for preparing them and their use in compositions for topical application, such as for cosmetic use, as thickeners, and the compositions comprising these polymers.Type: GrantFiled: January 21, 2003Date of Patent: September 6, 2005Assignee: L'Oreal S.A.Inventors: Sylvi Benard, Simon Trouille, Mireille Arnaud-Roux
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Patent number: 6936677Abstract: The invention concerns the use of a compound comprising a nitrogenous heterocyclic group with five cyclic members including, at least two nitrogen atoms, one of the nitrogen atoms bearing a hydrogen atom to promote the opening/closing reaction of uretidione cycles in the presence of a nucleophile compound provided that, when the nitrogenous heterocyclic group is imidazole, the opening/closing reaction is not the closing reaction of the uretidione cycle in the presence of a quaternary ammonium salt.Type: GrantFiled: December 26, 2001Date of Patent: August 30, 2005Assignee: Rhodia ChimieInventor: Jean-Marie Bernard
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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: 6914117Abstract: Process for preparing an elastomeric polyurethane material by reacting a polyisocyanate, a polyol and a monool.Type: GrantFiled: November 18, 2003Date of Patent: July 5, 2005Assignee: Huntsman International LLCInventors: Gerhard Jozef Bleys, Danny Anna Edward Geukens, Hans Godelieve Guido Verbeke
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Patent number: 6908979Abstract: 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: GrantFiled: November 18, 2003Date of Patent: June 21, 2005Assignee: Huntsman International LLCInventor: Christopher A. Arendoski
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Patent number: 6900282Abstract: A process for preparing the polyurethane derivative, the process including: providing a polyurethane having a urethane amino moiety, providing a multifunctional linker reagent of a formula: LG-RL-(FG)n, wherein n is an integer from 1 to 3, FG is a functional group, which is a halogen, a carboxyl group, a sulfonate ester, or an epoxy group, LG is a leaving group, which is a halogen, a carboxyl group, a sulfonate ester, or an epoxy group, and RL is an (n+1)-valent organic radical having at least one carbon atom; providing a protected thiol-containing reagent of a formula R—C(O)SH, or a salt thereof, wherein R is a C1 to C6 alkyl group; reacting the multifunctional linker reagent with the urethane amino moiety to form a polyurethane substituted with at least one substituent group of a formula: —RL-(FG)n; reacting the polyurethane with a protected thiol-containing reagent to form the polyurethane derivative.Type: GrantFiled: September 26, 2003Date of Patent: May 31, 2005Assignee: The Children's Hospital of PhiladelphiaInventors: Ivan Alferiev, Ilia Fishbein, Robert J. Levy
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Patent number: 6894139Abstract: Catalysts contain, as structural units, at least one tertiary amino group and at least one group which, after its decomposition, is capable of complexing or protonating the tertiary amino group.Type: GrantFiled: July 4, 2001Date of Patent: May 17, 2005Assignee: BASF AktiengesellschaftInventors: Martin Kreyenschmidt, Hauke Malz, Dieter Rodewald, Thomas Flug, Ansgar Frericks
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Patent number: 6890360Abstract: Fluorochemical urethane compositions comprising one or more fluorochemical urethane compounds, and one or more auxiliary compounds for treatment of a fibrous substrate are described. The fluorochemical compositions are capable of improving one or more of the oil- and/or water repellency, stain- and/or soil repellency and stain and/or soil release properties, with improved durability, of the fibrous substrate treated with the fluorochemical composition.Type: GrantFiled: December 17, 2001Date of Patent: May 10, 2005Assignee: 3M Innovative Properties CompanyInventors: Linda G. Coté , Mitchell T. Johnson, Larry A. Lien, Richard S. Buckanin
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Patent number: 6878794Abstract: Amine-terminated urethane oligomer compositions are described that include very high oligomer concentrations. The compositions are melts of the amine-terminated oligomers. The compositions can include one or more property modifiers. The compositions are useful in the formation of crosslinked copolymers, especially with epoxy resins. The resulting copolymers are useful in the formation of coatings.Type: GrantFiled: October 11, 2002Date of Patent: April 12, 2005Assignee: Tennant CompanyInventors: Joseph S. Keute, Anne-Marie Thunnissen, Robert J. Tweedy, Jr.
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Patent number: 6870024Abstract: The invention relates to a polymeric urea-urethane obtainable by first reacting a diisocyanate with a polyol to form a doubly NCO-terminated urethane prepolymer. Further reaction is subsequently carried out with a mixture of a primary monoamine and a primary diamine. After the second reaction the polymeric urea-urethane present is substantially free of isocyanate and of the monoamine and diamine used. It can be used as an agent for controlling the rheology of liquid polymers or polymer solutions.Type: GrantFiled: September 9, 2003Date of Patent: March 22, 2005Assignee: BYK-Chemie GmbHInventors: Karlheinz Haubennestel, Stefan Moessmer, Sascha Huebers, Baerbel Gertzen, Holger Heilmann
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Patent number: 6861493Abstract: Branched polyurethanes which are preparable by reacting A) one or more aliphatic and/or aromatic isocyanates having a functionality of at least three with B) from 90.0 to 99.8 eq. % of one or more polyethers of the structure RO(SO)w(BO)x(PO)y(EO)zH ?and C) from 0.2 to 10.0 eq. % of at least one of the compounds from the following group: a. polyethers b. polyether polydimethylsiloxane diols c. polyester polydimethylsiloxane diols d. polydimethylsiloxane diols e. polydimethylsiloxane diamines f. polyether diamines.Type: GrantFiled: February 20, 2003Date of Patent: March 1, 2005Assignee: Goldschmidt AGInventors: Sandra Bauer, Dirk Edelmann, Eberhard Esselborn, Markus Hoschke, Günthern Link, Stefan Silber
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Patent number: 6852831Abstract: The present invention relates to alkylenedioxythiophenes of the formula I having urethane-containing side groups: to their preparation and to their oligo- and polymeric derivatives (oligo- and poly(alkylenedioxythiophene)s).Type: GrantFiled: April 8, 2003Date of Patent: February 8, 2005Assignee: Bayer AktiengesellschaftInventor: Knud Reuter
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Patent number: 6846894Abstract: To provide a laminate adhesive that can keep on having adequate adhesiveness and also can prevent the odor and taste of the inherent properties of the content packed by the packing product from being spoiled even after high temperature sterilization treatment, such as the hot-water spray sterilization treatment, the hot-water rotary sterilization treatment or the steam sterilization treatment, to provide a usage of the laminate adhesive, the laminate adhesive comprises a curing component containing polyisocyanate and a base component containing polyol, wherein a silane coupling agent is contained in at least the curing component. Preferably, the silane coupling agent is mixed with both of the curing component and the base component. Further preferably, epoxysilane is mixed with the curing component and also aminosilane and oxyacid of phosphorus or derivative thereof are mixed with the base component.Type: GrantFiled: July 22, 2002Date of Patent: January 25, 2005Assignee: Mitsui Takeda Chemicals, Inc.Inventors: Hideki Terada, Shigetoshi Sasano, Sachio Igarashi
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Patent number: 6835772Abstract: This invention aims to provide a favorable feel coating film having gently soft feel (comfortable feel), a coating composition for forming the coating film, and fine particles of a polymer for incorporation in the coating composition, and concerns with fine particles of lanolin-deposited polyurethane resin obtainable by reacting at least one of polyesters and polyethers with polyisocyanate having at least two isocyanate groups in a poor solvent in the presence of a lanolin derivative; a coating composition comprising (i) at least one binder resin selected from the group consisting of polyester resins and polyether resins, the binder resin having a specific glass transition temperature, a specific number average molecular weight and a specific hydroxyl value, (ii) polyisocyanate having at least two isocyanate groups, (iii) the fine particles of polyurethane resin as described above, and (iv) an organic solvent; and an article coated with the coating composition.Type: GrantFiled: January 25, 2002Date of Patent: December 28, 2004Assignees: Ohashi Chemical Industries Ltd., Toyota Jidosha Kabushiki KaishaInventors: Takashi Kita, Hiroyuki Arimoto, Osamu Shoji, Takayuki Kishimoto, Kenji Kawazu, Mika Kai
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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: 6794422Abstract: A polymerizable solid aliphatic polyurethane containing olefinically unsaturated double bonds, having a very narrow melting range within the temperature range from 40 to 200° C., which is preparable from A) at least one linear aliphatic diisocyanate, B) at least one aliphatic compound containing at least two isocyanate-reactive functional groups and/or water, and C) at least one olefinically unsaturated compound containing an isocyanate-reactive functional group, and its use as a powder coating material or for preparing powder coating materials.Type: GrantFiled: August 15, 2002Date of Patent: September 21, 2004Assignee: BASF AktiengesellschaftInventors: Bernd Bruchmann, Reinhold Schwalm, Wolfgang Paulus, Rainer Blum
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Patent number: 6790924Abstract: This invention relates to the application of fluorinated urethane compositions to stone in order to protect the stone from the deleterious effects of water and pollution.Type: GrantFiled: June 13, 2002Date of Patent: September 14, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Douglas Robert Anton, Jack Robert Kirchner, William Howard Tuminello
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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: 6780951Abstract: Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.Type: GrantFiled: December 9, 2002Date of Patent: August 24, 2004Assignee: Arco Chemical Technology, L.P.Inventors: Daniel B. Pourreau, Peter J. Whitman, Stephen L. Goldstein, Stephen H. Harris
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Patent number: 6777523Abstract: The invention relates to polyether-modified, water-dispersible polyisocyanate mixtures, a process for their production and their use as initial component in the production of polyurethane plastics.Type: GrantFiled: May 28, 2002Date of Patent: August 17, 2004Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Laas, Martin Brahm, Reinhard Halpaap
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Patent number: 6770728Abstract: A process for preparing an ocular lens with a urethane compound comprising the steps of a) preparing a urethane compound by reacting at least one hydroxyl compound and at least one isocyanate compound in the presence of an organic iron compound, b) removing the organic iron compound from the urethane compound obtained in the step a) c) mixing the urethane compound obtained in the step b) with at least one compound selected from the group consisting of another copolymerizable compound, a crosslinking agent, a UV absorbent, a dye, a polymerization initiator, a photosensitizer, and an organic solvent to obtain a mixture, and d) curing the mixture obtained in the step c) to prepare a lens.Type: GrantFiled: October 31, 2002Date of Patent: August 3, 2004Assignee: Menicon Co., Ltd.Inventors: Tsuyoshi Watanabe, Eri Ito, Sadayasu Tanikawa, Shoji Ichinohe, Toshio Yamazaki, Mouad Lamrani
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Patent number: 6770727Abstract: A process for preparing an urethane compound for medical instruments, characterized by reacting a hydroxyl compound (A) with an isocyanate compound (B) in the absence of a catalyst or in the presence of a reaction catalyst other than an organic tin compound to give an urethane compound (I). According to the process, the urethane compound showing high safety can be easily prepared, in particular, while molecular weight of the compound is controlled.Type: GrantFiled: October 31, 2002Date of Patent: August 3, 2004Assignee: Menicon Co., Ltd.Inventors: Tsuyoshi Watanabe, Eri Ito, Sadayasu Tanikawa, Shoji Ichinohe, Toshio Yamazaki
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Patent number: 6759363Abstract: Activators with reduced volatility that are liquid at room temperature are obtained as the reaction product of (A) a secondary amine or primary alcohol having at least one tertiary amine group, (B) a polyisocyanate of the diphenylmethane series having a functionality of from 2.5 to 4.0 and an OH-functional reactive component capable of addition to isocyanate. These activators are useful for the production of polyurethane foams having improved emission behavior.Type: GrantFiled: November 9, 2001Date of Patent: July 6, 2004Assignee: Bayer AktiengesellschaftInventors: Peter Haas, Dirk Wegener, Hartwig Grammes
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Patent number: 6756464Abstract: The invention relates to a primer containing a solvent-containing two-component polyurethane binder comprising I) a curing component (A), comprising an addition product of at least one organic polyisocyanate (B) with an average NCO functionality of 2.5 to 5.0 and an isocyanate content of 8 to 27 wt. % and an alkoxysilane (C) of formula (I) with at least one isocyanate-reactive group, Q—Z—SiXaY3−a (I), in which Q represents an isocyanate-reactive group, Z represents a linear or branched C1-C12 alkylene group, X represents a hydrolyzable group, Y represents identical or different C1-C4 alkyl groups and a is an integer from 1 to 3, and II) a lacquer resin (D) which can react with isocyanate groups as adhesion promoter.Type: GrantFiled: January 22, 2002Date of Patent: June 29, 2004Assignee: Bayer AktiengesellschaftInventors: Steffen Hofacker, Markus Mechtel, Wieland Hovestadt, Claus Kobusch
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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: 6743374Abstract: A self-emulsifiable polyisocyanate with high functionality, having the average number of functional groups in 4.3 or more and a viscosity of 8,000 mPa·s (at 25° C.) or less, which is obtained by subjecting a modified polyisocyanate containing allophanate bonds and a poly(oxyalkylene)glycol monoalkyl ether (e) having oxyethylene bonds in a total amount of 30 mole % or more in its molecule to a urethanization reaction, said modified polyisocyanate being obtained by reacting a polyol (a) having the average number of functional groups in an amount of 2 or more with an organic polyisocyanate (b) in the presence of an allophanate-forming catalyst (c) comprising a zirconium carboxylate; and a process for producing the same.Type: GrantFiled: July 31, 2002Date of Patent: June 1, 2004Assignee: Nippon Polyurethane Industry Co., Ltd.Inventors: Motomu Kita, Mitsushige Ikemoto, Toshiaki Sasahara
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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: 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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Patent number: 6723819Abstract: Polyurethane resins are produced by reacting a polyol with a polyisocyanate in the presence of an amine catalyst of one of the formulae:Type: GrantFiled: May 21, 2002Date of Patent: April 20, 2004Assignee: Tosoh CorporationInventors: Takahiro Masuda, Hiroaki Nakamura, Yutaka Tamano
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Patent number: 6713525Abstract: A urethane (meth)acrylate oligomer which has a low viscosity and gives a flexible cured article reduced in surface tackiness. It is obtained by reacting a polyol ingredient comprising a polyoxyalkylene polyol which has two to four hydroxyl groups, a hydroxyl value VOH (mg-KOH/g) of from 5 to 115, and a total degree of unsaturation VUS (meq/g) satisfying the relationship VUS≦(0.45/VOH)+0.02, with a polyisocyanate compound and a hydroxylated (meth)acrylate compound.Type: GrantFiled: December 5, 2001Date of Patent: March 30, 2004Assignee: Asahi Glass Company, LimitedInventor: Josho Kashiwame
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Patent number: 6710120Abstract: The invention relates to aqueous polyurethane dispersions based on fatty acid dialkanolamides, to a process for preparing them and to use as coating compositions.Type: GrantFiled: March 31, 2003Date of Patent: March 23, 2004Assignee: Bayer AktiengesellschaftInventors: Rolf Gertzmann, Christoph Irle, Jan Weikard, Rolf Roschu, Erhard Lühmann
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Patent number: 6680352Abstract: The present, invention relates to a process for producing a fabric-elastomer composite that, when transfer or film coated, is preferable for use as an artificial leather substrate. The inventive procedure involves (a) producing an elastomer composition of at least four ingredients (an anionically-stabilized waterborne polymer dispersion, an acid-generating chemical, a cloud-point surfactant, and a foam-stabilizing surfactant); (b) incorporating sufficient gas into the liquid mixture to generate a spreadable foam; (c) applying the foam onto a porous textile substrate; (d) heating said foamed fabric until the elastomer coagulates over the fabric substrate; and (e) drying the resultant composite without destroying the coagulated structure. The resultant composite obtains a suppleness that is similar to that of leather and a surface that is suitable for transfer coating to produce artificial leather. The composite may be utilized as upholstery fabric in furniture or in automobiles, apparel, and the like.Type: GrantFiled: November 4, 2002Date of Patent: January 20, 2004Assignee: Milliken & CompanyInventors: Kirkland W. Vogt, Howell B. Eleazer
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Patent number: 6680356Abstract: A fast hardening clear coating composition for repairing a clearcoat/colorcoat finish of a vehicle, which composition is capable of being wet sanded, buffed or polished to a high gloss finish on the same day of application, comprising a film forming binder and an organic liquid carrier, where the binder contains a hydroxyl component comprising a hydroxyl-containing acrylic polymer and a hydroxyl-terminated polyester oligomer, and an organic polyisocyanate crosslinking component, at least portion of which comprises a trimer of isophorone diisocyanate, where the composition further contains, as a combined curing catalyst, at least one dialkyl tin aliphatic carboxylate, at least one tertiary aliphatic mono or diamine, and at least one aliphatic carboxylic acid, in an effective amount such that the clear coating composition on curing at ambient temperatures is in a water spot free and sufficiently hard state for sanding or buffing within about 4 hours after application or on cool down when baked under normal condType: GrantFiled: September 9, 2002Date of Patent: January 20, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Gia Huynh-Ba
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Patent number: 6677400Abstract: An aqueous polyurethane resin dispersions containing i) a polyol component with a molecular weight above 300 daltons, containing a polyether diol initiated on an aromatic diol, ii) a polyol component with a molecular weight of 62 to 299 daltons, iii) a monofunctional isocyanate-reactive compound with an ethylene oxide content of at least 50 wt. % and a molecular weight of at least 400 daltons, iv) a polyisocyanate v) an aliphatic polyamine with a molecular weight of 60 to 300 daltons or hydrazine, and vi) a hydrophilic aliphatic diamine, a process for making the dispersion and substrates primed with the dispersion.Type: GrantFiled: August 5, 2002Date of Patent: January 13, 2004Assignee: Bayer AktiengesellschaftInventors: Thomas Münzmay, Uwe Klippert, Frank Kobor, Claus Kobusch, Gerald Kurek
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Patent number: 6677425Abstract: A fast hardening clear coating composition for repairing a clearcoat/colorcoat finish of a vehicle, which composition is capable of being wet sanded, buffed or polished to a high gloss finish on the same day of application, comprising a film forming binder and an organic liquid carrier, where the binder contains a hydroxyl component comprising a hydroxyl-containing acrylic polymer and a hydroxyl-terminated polyester oligomer, and an organic polyisocyanate crosslinking component, at least portion of which comprises a trimer of isophorone diisocyanate, where the composition further contains, as a combined curing catalyst, at least one dialkyl tin aliphatic carboxylate, at least one tertiary aliphatic mono or diamine, and at least one aliphatic carboxylic acid, in an effective amount such that the clear coating composition on curing at ambient temperatures is in a water spot free and sufficiently hard state for sanding or buffing within about 4 hours after application or on cool down when baked under normal condType: GrantFiled: September 9, 2002Date of Patent: January 13, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Gia Huynh-Ba
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Patent number: 6673888Abstract: An optical material, particularly a plastic lens for spectacles, which absorbs almost all UV rays of up to around 400 nm or so and is not too yellow in color, is obtained by adding 2-(2-hydroxy-4-octyloxyphenyl)-benzotriazole to a diethylene glycol bisallylcarbonate monomer, a (thio)urethane monomer or an episulfide monomer, mixing them, and polymerizing the monomer.Type: GrantFiled: February 12, 2002Date of Patent: January 6, 2004Assignee: Hoya CorporationInventor: Masahisa Kosaka
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Patent number: 6649084Abstract: A polyisocyanate curing agent comprising an isocyanate group-terminated prepolymer and a silane coupling agent represented by formula (2), OCN—(CH2)x—Si(OR′)3 (2) wherein R is an alkyl group having 1 to 5 carbon atoms and m and n is each an integer of 1 or more; and an adhesive for forming laminates based on the above polyisocyanate curing agent and an active hydrogen-group containing resin.Type: GrantFiled: July 25, 2001Date of Patent: November 18, 2003Assignee: Nippon Polyurethane Industry Co., Ltd.Inventors: Yukihiro Morikawa, Ichiro Higashikubo, Kouji Yoshida, Toshiaki Sasahara
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Patent number: 6646088Abstract: This invention relates to chemical compositions comprising one or more urethane oligomers of at least two repeating units selected from the group consisting of fluorine-containing urethane oligomers and long-chain hydrocarbon-containing urethane oligomers. These urethane oligomers comprise the reaction product of (a) one or, more polyfunctional isocyanate compounds; (b) one or more polyols; (c) one or more monoalcohols selected from the group consisting of fluorochemical monoalcohols, optionally substituted long-chain hydrocarbon monoalcohols, and mixtures thereof; (d) one or more silanes; and optionally (e) one or more water-solubilizing compounds comprising one or more water-solubilizing groups and at least one isocyanate-reactive hydrogen containing group. The chemical compositions of the present invention can be applied as coatings and these coatings can impart stain-release characteristics and resist being worn-off due to wear and abrasion.Type: GrantFiled: March 26, 2002Date of Patent: November 11, 2003Assignee: 3M Innovative Properties CompanyInventors: Wayne W. Fan, Steven J. Martin, Zai-Ming Qiu, Michael S. Terrazas, Linda G. Coté, Mitchell T. Johnson, Larry A. Lien
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Patent number: 6639040Abstract: This invention relates to a continuous process for the production of allophanate modified diphenylmethane diisocyanates having an NCO group content of 19 to 32% and an urethane content of less than 2 area % by GPC analysis. The process comprises (1) continuously reacting (a) diphenylmethane diisocyanate and (b) an alcohol, in the presence of (c) at least 25 ppm of an allophante catalyst, based on the combined weight of the diphenylmethane diisocyanate and the alcohol, in a reactor in an oxygen-free environment; (2) continuously treating the product exiting the reactor with a catalyst stopper at the reaction temperature; and (3) cooling the resultant product.Type: GrantFiled: June 13, 2002Date of Patent: October 28, 2003Assignee: Bayer CorporationInventors: William E. Slack, Hersel T. Kemp, II, William E. Miller
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Patent number: 6635722Abstract: A catalyzed reactive hot melt adhesive, a method for improving the cure rate and a method for making thereof. The adhesive includes the reaction product of a reactive polyurethane adhesive and a catalytically effective amount of at least one amine catalyst with at least one active hydrogen.Type: GrantFiled: May 2, 2001Date of Patent: October 21, 2003Assignee: Henkel CorporationInventors: Yingjie Li, Jason D. Lohrey