Patents Examined by Rabon Sergent
  • Patent number: 9944821
    Abstract: Two-component coating systems and compositions are disclosed. The coating compositions form crosslinked polyurea coatings and have relatively long pot life and relatively short dry time. The coating compositions include a polyisocyanate, a polyaspartic ester, and a polyetheraspartic ester.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 17, 2018
    Assignee: Covestro LLC
    Inventors: Edward P. Squiller, Terrell D. Wayt, John Forsythe, Kurt E. Best, Ahren Olson, Alan Ekin
  • Patent number: 9938369
    Abstract: The present invention relates to a method for producing polyisocyanates comprising iminooxadiazinedione groups, wherein at least one monomeric di- and/or tri-isocyanate is oligomerized in the presence of at least one catalyst and succinonitrile. The invention relates further to a reaction system for producing polyisocyanates comprising iminooxadiazinedione groups, and to the use of succinonitrile in the production of polyisocyanates comprising iminooxadiazinedione groups by catalyzed modification of monomeric di- and/or tri-isocyanates.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: April 10, 2018
    Assignee: Covestro Deutschland AG
    Inventors: Frank Richter, Reinhard Halpasp
  • Patent number: 9914862
    Abstract: The present invention relates to a two-component polyurethane adhesive consisting of a polyol component and a polyisocyanate component, wherein the polyol component comprises a triol with a molar mass of 1,000 to 10,000 g/mol, a diol having two primary hydroxy groups and a molar mass of 60 to 150 g/mol, a poly(trimethylene oxide) diol or a poly(tetramethylene oxide) diol with a molar mass of 200 to 3,000 g/mol and an aliphatic polyamine. The adhesive is characterized by high early strength, a low temperature dependence of the mechanical properties, good adhesion and the possibility of controlled thermally induced release of adhesion.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: March 13, 2018
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Steffen Kelch, Wolfgang Roock, Florian Ittrich
  • Patent number: 9914799
    Abstract: According to the present invention, a composition for an optical material can be provided, which is characterized by containing an episulfide compound having a value of turbidity in acetone of 3.0 ppm or less. According to a preferred embodiment of the present invention, a composition for an optical material can be provided, which comprises: (a) a compound (an episulfide compound) which has a structure represented by formula (1) and has a value of turbidity in acetone of 3.0 ppm or less; (b) a polyisocyanate compound; and (c) a polythiol compound. (In the formula, m represents an integer of 0 to 4; and n represents an integer of 0 or 1.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 13, 2018
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kouhei Takemura, Tetsuya Konishi, Takashi Aoki, Hiroshi Horikoshi
  • Patent number: 9902683
    Abstract: A polyester polyol from which a polyurethane having acid resistance and alkali resistance can be produced. A polyester polyol containing 1,3-propandiol having an alicyclic skeleton in a side chain, 3-methyl-1,5-pantanediol, and a dibasic acid component as constituent components.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: February 27, 2018
    Assignee: KURARAY CO., LTD.
    Inventors: Takuo Tsuruta, Shigeru Okano
  • Patent number: 9896540
    Abstract: The present invention relates to polyester polyols made from aromatic polyacid sources such as thermoplastic polyesters. The polyols can be made by heating a thermoplastic polyester such as virgin polyethylene terephthalate, recycled polyethylene terephthalate, or mixtures thereof, with a glycol to give a digested intermediate which is then reacted with a digestible polymer, which can be obtained from various recycle waste streams. The polyester polyols comprise a glycol-digested polyacid source and a further digestible polymer. The polyester polyols provide a sustainable alternative to petrochemical or biochemical based polyester polyols.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: February 20, 2018
    Assignee: Resinate Materials Group, Inc.
    Inventors: Rick Tabor, Eric David Vrabel, Matthew J Beatty, Gary E. Spilman, Kevin Anthony Rogers, Michael Robert Christy, Matthew Thomas Brown, Jack Rogers Kovsky, Woo-Sung Bae, Shakti L Mukerjee
  • Patent number: 9896533
    Abstract: The present invention concerns new associative thickeners of the HEUR type (Hydrophobically modified Ethylene oxide URethane) whose hydrophobic monomer is based on alkyl cyclohexylols. These are new polyurethanes that significantly thicken an aqueous formulation with a low, medium and high shear gradient. The invention also concerns the compositions containing them and their uses in different formulations such as aqueous paints.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: February 20, 2018
    Assignee: COATEX
    Inventors: Jean-Marc Suau, Denis Ruhlmann
  • Patent number: 9891349
    Abstract: Provided is a transparent, non-elastomeric optical article prepared by (1) combining to form a reaction mixture (a) a polyisocyanate component; and (b) an active hydrogen component including (b1) a first component free of amino groups including at least one first polyol; and (b2) a second component containing (i) a second polyol and/or a polythiol and (ii) a compound containing both amine and hydroxyl functional groups; (2) introducing the reaction mixture to a mold at a temperature and for a time sufficient to form a thermoset polymerizate; and (3) releasing the polymerizate from the mold to yield a transparent, non-elastomeric optical article. Also provided is a method for preparing a transparent optical film. Optical films and articles prepared by the methods also are provided.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: February 13, 2018
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Nina Vassileva Bojkova, Marvin Jerome Graham, Matthew J. Kryger, Federico Menta
  • Patent number: 9890308
    Abstract: The present invention relates to a two-component polyurethane adhesive consisting of a polyol component and a polyisocyanate component, wherein the polyol component comprises a triol with a molar mass of 1,000 to 10,000 g/mol, a diol having two primary hydroxy groups and a molar mass of 60 to 150 g/mol, a poly(trimethylene oxide) diol or a poly(tetramethylene oxide) diol with a molar mass of 200 to 3,000 g/mol and an aliphatic polyamine. The adhesive is characterized by high early strength, a low temperature dependence of the mechanical properties, good adhesion and the possibility of controlled thermally induced release of adhesion.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: February 13, 2018
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Steffen Kelch, Wolfgang Roock, Florian Ittrich
  • Patent number: 9879111
    Abstract: A resin mixture comprises a vinyl ester urethane resin as the base resin, wherein the vinyl ester urethane resin can be obtained by reacting a dianhydrohexitol compound with a diisocyanate to obtain a product and reacting the obtained product with a hydroxy substituted (meth)acrylate. The resin mixture can be used to produce a reactive resin mortar containing that resin mixture and inorganic aggregates, organic aggregates or a mixture thereof. The reactive resin mortar can be used for chemical fastening.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: January 30, 2018
    Assignee: HILTI AKTIENGESELLSCHAFT
    Inventor: Michael Leitner
  • Patent number: 9878317
    Abstract: The present invention provides compounds produced by the reaction of glycidyl ethers and glycidyl esters with ether compounds including N,N,N?-trimethyl-bis-(aminoethyl)ether. N,N,N?-trimethyl-bis-(aminoethyl)ether and its derivatives can be used as polyurethane catalysts.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: January 30, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Juan Jesus Burdeniuc, Stephan Hermann Wendel, John William Mitchell
  • Patent number: 9873758
    Abstract: A polyurethane reaction system includes an isocyanate component having at least one polyisocyanate and an isocyanate-reactive component having a storage stable polyol component that is a single phase liquid mixture at 23° C. including a first polyether polyol and a second polyether polyol. The first polyether polyol is included in an amount from 20 wt % to 90 wt %, based on total weight of the polyol component, is a glycol based polyoxypropylene-polyoxyethylene polyether polyol having number average molecular weight from 1500 g/mol to 1975 g/mol, and has a polyoxyethylene content from 26 wt % and 34 wt % based on a total weight of the first polyether polyol. The second polyether polyol is included in an amount from 10 wt % to 80 wt %, based on total weight of the polyol component, has a number average molecular weight from 750 g/mol to 4000 g/mol, and has a melting point higher than 23° C.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: January 23, 2018
    Inventors: Sven Claessens, Justin M. Virgili, Antoon De Smet, Yme Braaksma, Mark F. Sonnenschein, Benjamin L. Wendt
  • Patent number: 9868811
    Abstract: Described herein are polyurethane compositions based on natural materials, as well as methods for making and using the compositions. Also described herein are biofoams made from the polyurethane compositions. The biofoams described herein are resistant to degradation by acid and heat and are able to recover their original shapes after the application of pressure.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: January 16, 2018
    Assignee: INTERNATIONAL PARK OF CREATIVITY
    Inventors: Raul Cuero Rengifo, Gabriela Melo Rodriguez
  • Patent number: 9862795
    Abstract: Disclosed herein is a composition for use in the preparation of a Lacrosse sport ball, the composition comprising a prepolymer, the prepolymer comprising a multifunctional polyisocyanate and one or more polyols having a molecular weight of from about 1000 Daltons to about 5000 Daltons, and a curative comprising an amine or an additional polyol or a combination thereof. A Lacrosse ball formed from the composition exhibits a ball compression of from about 180 pounds to about 210 pounds or from about 90 pounds to about 210 pounds when tested in accordance with ND 049-12m12 Section 5.3 Ball Compression, and wherein the molded spherical ball exhibits a ball coefficient of restitution COR of from about 0.60 to about 0.70 or from about 0.50 to about 0.75 when tested in accordance with ND 049-12m12 Section 5.4 Ball Coefficient of Restitution COR.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 9, 2018
    Assignee: The Hanson Group LLC
    Inventors: Wallace Lee Hanson, Jr., Susan Aragon, Chris Carter, Charles Demarest, Michael Oseth, Marci Ann Seidel
  • Patent number: 9850339
    Abstract: A liquid crystalline polyurethane elastomer is produced by reacting an isocyanate component, a high-molecular-weight polyol component and a mesogenic diol represented by formula (1), and having a crosslinking site that is introduced by a tri-functional or higher isocyanate in the isocyanate component and/or a high-molecular-weight polyol having a number average molecular weight of 400 or more and less than 7000 and having three or more hydroxy groups, in the high-molecular-weight polyol component, wherein the melting point of a mesogenic unit does not exist in a temperature range lying between the glass transition temperature (Tg) and the (liquid crystal phase)-to-(isotropic phase) transition temperature (Ti) of the polyurethane elastomer, and a liquid crystal is developed at a temperature between the Tg and the Ti. (In the formula, X represents an alkylene group having 3 to 20 carbon atoms; and Y represents a single bond, —N?N—, —CO—, —CO—O— or —CH?N—).
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: December 26, 2017
    Assignee: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Yuki Hidaka
  • Patent number: 9840578
    Abstract: PIPA polyols are made in a two-step process. In the first step, a base polyether polyol and a polyisocyanate are reacted to form a mixture that contains unreacted base polyol, unreacted polyisocyanate and adducts of the base polyol and polyisocyanate. A low equivalent weight polyol is then added and reacted in a second step to form the dispersion. The process unexpectedly produces a stable dispersion of the fine PIPA particles in the base polyol, even when the base polyol contains mostly secondary hydroxyl groups. The process also permits the tuning of product viscosity by increasing or decreasing the extent of reaction in the first step.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: December 12, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Paul Cookson, Francois Casati, Ricco Borella, Daniel Hoehener, Irena Amici-Kroutilova
  • Patent number: 9834641
    Abstract: A polyester polyol comprising at least one esterified unit of formula (I) wherein L is a difunctional aliphatic group having from two to six carbon atoms and R is a C1-C4 alkyl group.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: December 5, 2017
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Jorge Jimenez, Kevin K. Miyake, Pavel L. Shutov, David E. Vietti, Joseph J. Zupancic
  • Patent number: 9822210
    Abstract: The present invention relates to a method to form a polyurethane material, a catalyst composition comprising metalized polyhedral oligomeric silsesquioxanes (POMS) compounds in combination with reactive compounds suitable to be used to provide a polyurethane material and the polyurethane material obtained using the catalyst composition.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: November 21, 2017
    Assignee: HUNTSMAN INTERNATIONAL LLC
    Inventors: Rene Alexander Klein, Christina Marinus
  • Patent number: 9790398
    Abstract: The present application is directed at the reaction product of an azide compound having two or more azide groups attached thereto and an alkyne compound having two or more alkyne groups attached thereto, wherein the azide and alkyne groups react in a 1,3-dipolar cyclo addition to form 1,4-disubstituted triazols and wherein the azide or alkyne compound or both include —O—(C?O)—NR— functional groups. The reaction products can be used as coatings, such as for flat roofs, sealants, adhesives and in elastomer applications. Methods for producing the reaction products as well as substrates including a coating of the reaction product are also disclosed.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: October 17, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Neil Carter, Ian Martin, Alexander Coward, Mark Gatrell, Michael Byrne, John E. Cullen, Peter Cormack
  • Patent number: 9765177
    Abstract: Methods for producing a polymer with end groups of formula (I), which is free of isocyanate groups, wherein at least one hydrosilane of formula (II) is reacted with at least one polyurethane polymer containing isocyanate groups, where R1 stands for an alkyl group having 1 to 12 C atoms, R2 stands for a hydrogen atom or for an alkyl group having 1 to 12 C atoms, which optionally comprises ether oxygen or amine nitrogen, R3 stands for a linear or a branched alkylene or cycloalkylene residue having 1 to 20 C atoms, optionally with aromatic parts, and optionally with one or more heteroatoms, R4 stands for an alkyl group having 1 to 6 C atoms, R5 stands for an alkyl group having 1 to 10 C atoms, which optionally comprises one or more ether oxygens, n stands for 2 or 3 or 4, and x stands for 0 or 1.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: September 19, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Urs Burckhardt