Patents by Inventor André Steenbergen

André Steenbergen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6562899
    Abstract: Branched hydroxyl-functional polyester resin having an average hydroxyl functionality of >2, a hydroxyl number of 25 to 300 mg KOH/g, and a number average molecular weight within the range of from 500 to 3,000, which polyester resin comprises polyalkylene oxide groups and, optionally, sulphonate groups, wherein the polyester resin comprises the reaction product of 1) a mixture of carboxylic acids comprising 50 to 80 mole % of an m- and/or p-aromatic and/or cycloaliphatic dicarboxylic acid, 20 to 50 mole % of an aliphatic dicarboxylic acid and/or aliphatic monocarboxylic acid with more than 6 carbon atoms, and, optionally, a tri- or higher-functional acid, and 2) a mixture of alcohols comprising an aliphatic diol with at least 4 carbon atoms and/or a cycloaliphatic diol with at least 4 carbon atoms, a C1-C4 alkoxy polyalkylene oxide glycol and/or C1-C4 alkoxy polyalkylene oxide 1,3-diol having a number average molecular weight of 500 to 3,000, and, optionally, a tri- or higher-functional polyalcohol, w
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: May 13, 2003
    Assignee: Akzo Nobel N.V.
    Inventors: Roelof Buter, André Steenbergen, Taco Scherer, Petrus Johannes Arnoldus Geurink
  • Patent number: 6509408
    Abstract: Aqueous-based cross-linkable binder composition comprising (A) an aqueous dispersion of a polyester-polyacrylate hybrid resin 50 to 90 wt. % of which is composed of polyester and 10 to 50 wt. % of which is composed of polyacrylate, which hybrid resin is obtainable by grafting a composition of radically polymerisable unsaturated monomers onto a partially unsaturated hydroxy-functional polyester resin, and (B) an organic polyisocyanate, wherein the partially unsaturated hydroxy-functional polyester is obtainable by reaction of a mixture of polycarboxylic and, optionally, monocarboxylic acids, and one or more (cyclo)aliphatic alcohols, wherein 0.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: January 21, 2003
    Assignee: Akzo Nobel N.V.
    Inventors: Roelof Buter, André Steenbergen, Petrus Johannes Arnoldus Geurink, Taco Scherer
  • Publication number: 20020016407
    Abstract: Aqueous-based cross-linkable binder composition comprising
    Type: Application
    Filed: May 21, 2001
    Publication date: February 7, 2002
    Inventors: Roelof Buter, Andre Steenbergen, Petrus Johannes Arnoldus Geurink, Taco Scherer
  • Publication number: 20020013404
    Abstract: Branched hydroxyl-functional polyester resin having an average hydroxyl functionality of >2, a hydroxyl number of 25 to 300 mg KOH/g, and a number average molecular weight within the range of from 500 to 3,000, which polyester resin comprises polyalkylene oxide groups and, optionally, sulphonate groups, wherein the polyester resin comprises the reaction product of
    Type: Application
    Filed: April 20, 2001
    Publication date: January 31, 2002
    Inventors: Roelof Buter, Andre Steenbergen, Taco Scherer, Petrus Johannes Arnoldus Geurink
  • Patent number: 6088077
    Abstract: The invention is directed to a liquid crystalline display comprising a display cell containing liquid crystalline material and a retardation layer. The retardation layer comprises a, preferably slightly cross-linked, high-molecular weight material layer and a substrate, wherein the high-molecular weight material has a nematic phase above its Tg and a dynamic viscosity at the working temperature of at least 100 Pa.s. The difference of the Tc of the high-molecular weight material and the Tc of the low-molecular weight material of the display cell (TC.sub.cell) is in the range of -30.degree. C. to +30.degree. C., preferably in the range of -20.degree. C. to +20.degree. C., and more preferably in the range of -10.degree. C. to +10.degree. C.; and the Tg of the high-molecular weight liquid crystalline material is lower than 50.degree. C.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: July 11, 2000
    Assignee: Akzo Nobel nv
    Inventors: Paulus Pieter De Wit, Stephen James Picken, Andre Steenbergen, Martin Bosma
  • Patent number: 5844049
    Abstract: Rubber compositions are provided having improved physical properties. More particularly, the present invention relates to sulfur-vulcanized rubber compositions which are vulcanized in the presence of certain bis-succinimide coagents, which possess anti-reversion and/or accelerating properties. The invention also relates to a sulfur-vulcanization process which is carried out in the presence of one or more bis-succinimide coagents, and to the use of bis-succinimide coagents in the sulfur-vulcanization of rubber. Finally, the invention relates to rubber products comprising rubber vulcanized with sulfur in the presence of one or more bis-succinimide coagents.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: December 1, 1998
    Assignee: Akzo Nobel nv
    Inventors: Rabindra Nath Datta, Auke Gerardus Talma, Arie Jacob de Hoog, Andre Steenbergen, Berend Jan Dijk
  • Patent number: 5728468
    Abstract: The invention relates to an organic phosphorus compound-containing which comprises an interpenetrating polymer network (IPN) produced by polymerizing free-radically polymerizable monomers comprising at least an allyl group-containing monomer and an epoxy resin.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: March 17, 1998
    Assignee: Akzo Nobel N.V.
    Inventors: Jan Andre Jozef Schutyser, Antonius Johannes Wilhelmus Buser, Andre Steenbergen