Patents by Inventor Rolf Seidemann

Rolf Seidemann 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: 6166150
    Abstract: A process for preparing binders for one-component paint systems has the following steps: (I) preparation of a polyurethane-alkyd resin component (A) composed of a mixture (a) of (a1) an unsaturated C.sub.6 -C.sub.30 fatty acid with at least two non-conjugated double bonds, and (a2) an unsaturated C.sub.6 -C.sub.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: December 26, 2000
    Assignee: BASF Coatings AG
    Inventors: Guido Wilke, Ulrich Poth, Rolf Seidemann, Vijay Kadambande
  • Patent number: 5834555
    Abstract: The present invention relates to an aqueous multicomponent polyurethane coating composition comprisingA) a water-dilutable polyaddition resin (A1) and/or polycondensation resin (A2) containing hydroxyl and carboxylate groups and having an OH number of from 40 to 200 mg of KOH/g, preferably from 60 to 140 mg of KOH/g, an acid number of from 15 to 100 mg of KOH/g, preferably from 25 to 50 mg of KOH/g, and a glass transition temperature of from -40.degree. C. to +60.degree. C., preferably from -20.degree. C. to +40.degree. C.,B) a polyisocyanate component (B) as crosslinking agent andC) at least one additive,characterized in that it contains as additive a carbodiimide component (C) which has a content of carbodiimide groups --N.dbd.C.dbd.N-- of from 2 to 30% by weight, on average at least 0.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: November 10, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Uwe Meisenburg, Egbert Nienhaus, Rolf Seidemann, Bernd Mayer, Anthony J. Tye