Patents by Inventor Roland Gruetzmacher

Roland Gruetzmacher 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).

  • Water dilutable leverler coating compositions
    Patent number: 4977207
    Abstract: A leveler coating composition comprising a water-dilutable polyurethane aqueous dispersion having a solids content of 10-50% by weight and a viscosity of 10-50,000 mPa.s; a process for manufacturing the coating; and a method for using it in automotive finishes.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: December 11, 1990
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rainer Hoefer, Roland Gruetzmacher, Wolfgang Gress, Ulrich Nagorny
  • Polyurethane casting resins
    Patent number: 4826944
    Abstract: Reactive resin systems suitable for cast-molding polyurethanes comprise reactive isocyanates and chain extenders for the isocyanates comprising polyol addition products of C.sub.1 -C.sub.8 alcohols and epoxidized triglyceride oils: if desired, the polyol addition products used have been alkoxylated with C.sub.2 -C.sub.4 -alkylene oxides.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: May 2, 1989
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rainer Hoefer, Bert Gruber, Alfred Meffert, Roland Gruetzmacher