Patents Examined by Rachel Gorr
  • Hydroxyl and carbamate functional resins
    Patent number: 6927271
    Abstract: Coating compositions contain hydroxyl- or carbamate functional resins with a relatively low equivalent weight. The resins are based on a polyol core containing urea and hydroxyl groups, and made by reacting a polyisocyanate, preferably a triisocyanate, with an amino functional polyol, preferably a polyol having one amino group and two or more hydroxyl groups. The polyol core may be further extended to a first or higher generation dendrimer or hyperbranched structure by reacting the initial polyol core with a compound having one carboxyl group and two or more hydroxyl groups.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: August 9, 2005
    Assignee: BASF Corporation
    Inventor: Sunitha Grandhee
  • Polyurethane resin with high carbonate group content
    Patent number: 6927254
    Abstract: 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: Grant
    Filed: November 5, 2003
    Date of Patent: August 9, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Martin Melchiors, Thomas Münzmay, Torsten Pohl, Uwe Klippert
  • Polyols with autocatalytic characteristics and polyurethane products made therefrom
    Patent number: 6924321
    Abstract: The present invention discloses a process for producing a polyurethane product with autocatalytic polyols. These autocatalytic polyols are based on an initiator that contains a tertiary amine. These autocatalytic polyols are reacted with a polyisocyanate in the presence of other additives and/or auxiliary agents known per se to produce polyurethane products.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: August 2, 2005
    Assignee: Dow Global Technologies Inc.
    Inventors: Francois Casati, Jean-Marie Louis Sonney
  • Unsaturated compounds containing carbamate terminal groups or urea terminal groups
    Patent number: 6916854
    Abstract: The invention relates to a compound containing at least one unsaturated, radically or cationically polymerizable group and at least one carbamate terminal group or urea terminal group.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: July 12, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Schwalm, Uwe Meisenburg
  • POLYADDITION PRODUCTS CONTAINING HYDROXYL AND URETDIONE GROUPS, PROCESS FOR THEIR PREPARATION, THEIR USE FOR THE PRODUCTION OF HIGHLY REACTIVE POLYURETHANE POWDER COATINGS WHICH ARE FREE FROM ELIMINATION PRODUCTS, AND THE POLYURETHANE POWDER COATINGS PRODUCED ACCORDINGLY
    Patent number: 6916897
    Abstract: Polyaddition products containing hydroxyl and uretdione groups, a process for their preparation, their use for the production of highly reactive polyurethane (PUR) powder coatings which are free from elimination products and which crosslink to give light-stable and weather-stable coating films of high gloss, and the powder coatings produced accordingly are provided.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: July 12, 2005
    Assignee: Degussa AG
    Inventor: Rainer Gras
  • Light-colored water based intercoat coating composition and multi-layer coating film formed by use of the same
    Patent number: 6914116
    Abstract: A light-colored water based intercoat coating composition containing a hydroxyl group-containing resin (A), a curing agent (B) and a color pigment (C), a resulting coating film having a lightness index or a L value of 80 or more, the curing agent (B) being a blocked polyisocyanate curing agent (B1) blocked with a pyrazole blocking agent.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: July 5, 2005
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Hideaki Katsuta, Hideo Sugai, Shingo Sato, Fumio Yamashita
  • Elastomeric polyurethane material
    Patent number: 6914117
    Abstract: Process for preparing an elastomeric polyurethane material by reacting a polyisocyanate, a polyol and a monool.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: July 5, 2005
    Assignee: Huntsman International LLC
    Inventors: Gerhard Jozef Bleys, Danny Anna Edward Geukens, Hans Godelieve Guido Verbeke
  • Polyurethane method for the production thereof and binding agent produced therefrom
    Patent number: 6914118
    Abstract: A polyurethane having at least one anionic anchor group L, the anchor group L being covalently bonded to a polyether segment having at least one nitrogen atom in the polyurethane.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: July 5, 2005
    Assignee: Imation Corp.
    Inventors: Ulrike Hees, Hans-Guenter Bohrman, Benedikt Raether, Ria Kress, Albert Kohl
  • Polyurethane elastomer gels
    Patent number: 6908979
    Abstract: 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: Grant
    Filed: November 18, 2003
    Date of Patent: June 21, 2005
    Assignee: Huntsman International LLC
    Inventor: Christopher A. Arendoski
  • POLYADDITION PRODUCTS CONTAINING HYDROXYL AND URETDIONE GROUPS, PROCESS FOR THEIR PREPARATION, THEIR USE FOR THE PRODUCTION OF HIGHLY REACTIVE POLYURETHANE POWDER COATINGS WHICH ARE FREE FROM ELIMINATION PRODUCTS, AND THE POLYURETHANE POWDER COATINGS PRODUCED ACCORDINGLY
    Patent number: 6908980
    Abstract: Polyaddition products containing hydroxyl and uretdione groups, a process for their preparation, their use for the production of highly reactive polyurethane (PUR) powder coatings which are free from elimination products and which crosslink to give light-stable and weather-stable coating films of high gloss, and the powder coatings produced accordingly are provided.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: June 21, 2005
    Assignee: Degussa AG
    Inventor: Rainer Gras
  • Prepolymer catalysts suitable for preparing spandex fibers
    Patent number: 6906163
    Abstract: Segmented polyurethane/ureas useful for the production of spandex, particularly spandex fibers, are made from isocyanate-terminated prepolymers formed by reacting excess isocyanate with an isocyanate-reactive component satisfying specified compositional requirements in the presence of a catalyst which promotes linear polymerization but does not cause degradation of the polymer. Suitable catalysts include metal salts of organic fatty acids and/or of naphthenic acid. The isocyanate-reactive component includes at least 10 equivalent percent of a polyoxypropylene diol having a number average molecular weight of at least about 1500 Da and an average unsaturation level less than or equal to 0.03 meq/g and up to 90 equivalent percent of a polytetramethylene glycol having a number average molecular weight of at least 200 Da.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: June 14, 2005
    Assignee: Bayer Materialscience LLC
    Inventors: Bruce D. Lawrey, Thomas A. J. Gross, Rolf-Volker Meyer
  • Surface treatment composition and preparation thereof
    Patent number: 6906115
    Abstract: A perfluoropolyether-containing composition, which can easily conform to a fluorine-free substrate and can form a film on a surface of the substrate to fix the composition to the substrate surface, wherein the composition is a carbon-carbon double bond-containing composition comprising (A) a triisocyanate prepared by trimerizing a diisocyanate, and (B) a combination of at least two active hydrogen-containing compounds, and the component (B) comprises (B-1) a perfluoropolyether having at least one active hydrogen, and (B-2) a monomer having active hydrogen and a carbon-carbon double bond.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: June 14, 2005
    Assignee: Daikin Industries, Ltd.
    Inventors: Makoto Hanazawa, Yasuo Itami
  • UV-curable compositions
    Patent number: 6906136
    Abstract: A UV-curable composition is disclosed. The composition comprises a crosslinking agent, a hydroxyalkyl acrylate or methacrylate, and an acrylic polyol. The crosslinking agent is selected from the group consisting of multifunctional isocyanates, melamines, and silanes. The acrylic polyol comprises recurring units of an allylic alcohol. The composition can be irradiated to be solidified and then fully cured by the urethane, melamine, or silane reactions. Alternatively, the composition can be cured by the urethane, melamine, or silane reactions, and then fully cured by radiation. The invention provides low VOC but high performance coatings. More importantly, the invention provides a UV-curable system without the need for acrylated oligomers.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: June 14, 2005
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Daniel B. Pourreau, Shanti P. Patel, L. Joseph Junker, Wei Wang, Stephen H. Harris, Shao-Hua Guo
  • Polyurethane prepolymers comprising NCO groups and a low content of monomeric polyisocyanate
    Patent number: 6903167
    Abstract: 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: Grant
    Filed: May 30, 2003
    Date of Patent: June 7, 2005
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA)
    Inventors: Gerd Bolte, Guenter Henke, Claudia Meckel-Jonas, Dagmar Jahns
  • Composition for wood-polymer composite and wood-polymer composite made from the composition
    Patent number: 6903149
    Abstract: The present invention provides a composition for wood-polymer composites containing a thermoplastic resin, wood flour and a polyol ester compound having not less than one hydroxyl group esterified with fatty acid, and a wood-polymer composite made from this composition. According to the present invention, a wood-polymer composite having well-balanced mechanical strength and processability, as compared to products made from lumber alone and products made from thermoplastic resin alone, and a composition for wood-polymer composites therefor can be provided.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: June 7, 2005
    Assignee: Ajinomoto Co., Inc.
    Inventors: Naoki Yasuda, Haruo Nemoto
  • Polyurethane/ureas useful for the production of spandex and a process for their production
    Patent number: 6903179
    Abstract: Segmented polyurethane/ureas useful in the production of spandex are produced by chain extending an isocyanate-terminated prepolymer in the presence of a solvent. The isocyanate-terminated prepolymer is formed by reacting a stoichiometric excess of an isocyanate with an isocyanate-reactive component that includes more than 50 equivalent percent of a high molecular weight polyoxyalkylene diol having an unsaturation level no greater than about 0.015 meq/g and up to about 50 equivalent percent of a polytetramethylene ether glycol.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: June 7, 2005
    Assignee: Bayer Materialscience LLC
    Inventor: Bruce D. Lawrey
  • Acid-functional polyurethane and polyurea compositions for golf balls
    Patent number: 6903178
    Abstract: A golf ball comprising a core having a compression greater than about 55; and an outer cover comprising an acid-functional polyurethane, polyurea, or copolymer thereof, the outer cover having a Shore D hardness of at least about 25, a thickness of from at least about 0.02 inches to about 0.03 inches, and a specific gravity of at least about 0.7.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: June 7, 2005
    Assignee: Acushnet Company
    Inventors: Shenshen Wu, Shawn Ricci, Murali Rajagopalan, Michael J. Sullivan
  • Derivatized polyurethane compositions which exhibit enhanced stability in biological systems and methods of making the same
    Patent number: 6900282
    Abstract: 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: Grant
    Filed: September 26, 2003
    Date of Patent: May 31, 2005
    Assignee: The Children's Hospital of Philadelphia
    Inventors: Ivan Alferiev, Ilia Fishbein, Robert J. Levy
  • Blocked polyisocyanate
    Patent number: 6894138
    Abstract: The present invention is directed to a blocked polyisocyanate based on nonane triisocyanate. More particularly, the invention is directed to a blocked polyisocyanate useful in solvent borne coating compositions and comprising the reaction product of: a) nonane triisocyanate; b) a pyrazole blocking agent; and c) a diol or polyol.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: May 17, 2005
    Assignee: Bayer MaterialScience LLC
    Inventors: Richard R. Roesler, Patricia B. Jacobs, Dinesh Pethiyagoda, Tabitha H. Riggio, Marianne M. Salek, Emery Yuhas
  • Fast curing compositions
    Patent number: 6894140
    Abstract: Fast curing surgical adhesives and sealants contain an NCO-terminated hydrophilic urethane prepolymer derived from an aromatic diisocyanate and a polyol. Substantially all the aromatic diisocyanate used to prepare the NCO-terminated hydrophilic urethane prepolymer is in the para form. Optionally, the aromatic diisocyanate is substituted with at least one electron withdrawing group, such as, for example, a fluorine group.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: May 17, 2005
    Assignee: Tyco Healthecare Gropu LP
    Inventor: Mark Roby