Patents by Inventor Jürgen Grönen

Jürgen Grönen 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).

  • COLORING PROCESS FOR POLY(METH)ACRYLATES WITH WATER-BASED LIQUID DYES, AND WATER-BASED LIQUID DYES
    Publication number: 20180105677
    Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Inventors: Ursula GOLCHERT, Klaus SCHULTES, Stefan NAU, Ernst BECKER, Manuel KAISER, Juergen GROENEN, Daniel CLEFF, Viola ROSNER, Norbert BENDZKO
  • COLORING PROCESS FOR POLY(METH)ACRYLATES WITH WATER-BASED LIQUID DYES, AND WATER-BASED LIQUID DYES
    Publication number: 20150322240
    Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.
    Type: Application
    Filed: July 21, 2015
    Publication date: November 12, 2015
    Inventors: Ursula GOLCHERT, Klaus SCHULTES, Stefan NAU, Ernst BECKER, Manuel KAISER, Juergen GROENEN, Daniel CLEFF, Viola ROSNER, Norbert BENDZKO
  • COLORING PROCESS FOR POLY (METH) ACRYLATES WITH WATER-BASED LIQUID DYES AND WATER-BASED LIQUID DYES
    Publication number: 20110136964
    Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.
    Type: Application
    Filed: July 10, 2009
    Publication date: June 9, 2011
    Applicant: EVONIK ROEHM GMBH
    Inventors: Ursula Golchert, Klaus Schultes, Stefan Nau, Ernst Becker, Manuel Kaiser, Juergen Groenen, Daniel Cleff, Viola Rosner, Norbert Bendzko
  • High-resilient polyurethane foams produced from polyether polyols
    Patent number: 6858655
    Abstract: Flexible polyurethane foams are produced from a polyisocyanate and a polyether polyol which has been alkoxylated in the presence of a double metal cyanide catalyst and that has at least one ethylene oxide-propylene oxide mixed block.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: February 22, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jörg Hofmann, Pramod Gupta, Manfred Dietrich, Hansjürgen Rabe, Jürgen Grönen, Pieter Ooms
  • Stabilized, finely disperse low-viscosity polymer polyols with a high content of polystyrene or polystyrene copolymers
    Patent number: 6472447
    Abstract: The present invention relates to finely dispersed, low-viscosity polymer polyols which are stabilized in a novel manner and which are characterized by a high content of polystyrene or polystyrene copolymers. This invention also relates to the preparation of such polymer polyols, and their use for the preparation of polyurethane materials.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: October 29, 2002
    Inventors: Klaus Lorenz, Manfred Dietrich, Michael Brockelt, Uwe Scholz, Robert-Joseph Kumpf, Jürgen Grönen, Gundolf Jacobs