Patents by Inventor André van Zyl

André van Zyl 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).

  • Multilayer films for insert mold decoration, methods for making the same, and articles made therefrom
    Patent number: 8916259
    Abstract: A multilayer thermoplastic film having polycarbonate layers is disclosed, in which a first layer comprises a first polycarbonate that comprises repeat units derived from one or more of a monoaryl monomer (II) and/or (III), and a diaryl monomer (IV) as defined herein. A second layer, adjacent to the first layer and coextruded therewith, comprises another polycarbonate that is not the same as a polycarbonate in the first layer. The first layer provides improved properties, for example hardness, impact, and/or scratch resistance.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 23, 2014
    Assignee: Sabic Global Technologies B.V.
    Inventors: Sapna Kirk Blackburn, David D. Clinnin, Johannes Martinus Dina Goossens, Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Lina Prada, Sandeep Tripathi, André van Zyl
  • Methods for the manufacture of polycarbonate compositions, the compositions formed thereby, and articles thereof
    Patent number: 8609786
    Abstract: A method of making a thermoplastic composition comprises melt blending a reaction mixture comprising a first polycarbonate comprising repeat units derived from monoaryl monomers (II) and (III) and a diaryl monomer (IV), wherein the sum of the mole percent of the repeat units derived from monomers (II) and (III) is greater than or equal to 30 mole percent, and the mole percent of the repeat units derived from monomer (IV) is 5 to 70 mole percent, each based on the total moles the repeat units derived from monomers (II), (III), and (IV), and the total weight of the repeat units derived from monomers (II), (III), and (IV) is greater than or equal to 90 wt. % of the first polycarbonate; and an additional polycarbonate, comprising 50 to 100 mole percent of repeat units derived from a bisphenol cyclohexane.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 17, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Johannes Martinus Dina Goossens, Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Lina Prada, Sandeep Tripathi, André van Zyl
  • Polycarbonate graft copolymers
    Patent number: 8426532
    Abstract: Methods of forming polycarbonate graft copolymers are provided. In particular, a polycarbonate polymer or copolymer containing allyl groups provides the backbone for the graft copolymer, and pendant chains are attached to the copolymer through the allyl groups. The graft copolymers exhibit a combination of high transparency, good graft levels, good scratch resistance, and/or good anti-fog properties.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: April 23, 2013
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Rubin Huang, Andre van Zyl, Jan Pleun Lens, Theodorus Lambertus Hoeks, Hans-Peter Brack, Jan Henk Kamps
  • POLYCARBONATE GRAFT COPOLYMERS
    Publication number: 20120071606
    Abstract: Methods of forming polycarbonate graft copolymers are provided. In particular, a polycarbonate polymer or copolymer containing allyl groups provides the backbone for the graft copolymer, and pendant chains are attached to the copolymer through the allyl groups. The graft copolymers exhibit a combination of high transparency, good graft levels, good scratch resistance, and/or good anti-fog properties.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 22, 2012
    Inventors: Rubin Huang, Andre van Zyl, Jan Pleun Lens, Theodorus Lambertus Hoeks, Hans-Peter Brack, Jan Henk Kamps
  • MULTILAYER FILMS FOR INSERT MOLD DECORATION, METHODS FOR MAKING THE SAME, AND ARTICLES MADE THEREFROM
    Publication number: 20100159211
    Abstract: A multilayer thermoplastic film having polycarbonate layers is disclosed, in which a first layer comprises a first polycarbonate that comprises repeat units derived from one or more of a monoaryl monomer (II) and/or (III), and a diaryl monomer (IV) as defined herein. A second layer, adjacent to the first layer and coextruded therewith, comprises another polycarbonate that is not the same as a polycarbonate in the first layer. The first layer provides improved properties, for example hardness, impact, and/or scratch resistance.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 24, 2010
    Inventors: Sapna Kirk BLACKBURN, David D. Clinnin, Johannes Martinus Dina Goossens, Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Lina Prada, Sandeep Tripathi, Andre van Zyl
  • METHODS FOR THE MANUFACTURE OF POLYCARBONATE COMPOSITIONS, THE COMPOSITIONS FORMED THEREBY, AND ARTICLES THEREOF
    Publication number: 20100160575
    Abstract: A method of making a thermoplastic composition comprises melt blending a reaction mixture comprising a first polycarbonate comprising repeat units derived from monoaryl monomers (II) and (III) and a diaryl monomer (IV), wherein the sum of the mole percent of the repeat units derived from monomers (II) and (III) is greater than or equal to 30 mole percent, and the mole percent of the repeat units derived from monomer (IV) is 5 to 70 mole percent, each based on the total moles the repeat units derived from monomers (II), (III), and (IV), and the total weight of the repeat units derived from monomers (II), (III), and (IV) is greater than or equal to 90 wt. % of the first polycarbonate; and an additional polycarbonate, comprising 50 to 100 mole percent of repeat units derived from a bisphenol cyclohexane.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 24, 2010
    Inventors: Johannes Martinus Dina Goossens, Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Lina Prada, Sandeep Tripathi, Andre van Zyl