Patents by Inventor Dittmar Grapatin

Dittmar Grapatin 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).

  • Aqueous binder dispersion useful for producing hardly yellowing, highly glossy coatings
    Patent number: 6187384
    Abstract: The invention relates to binders BM for one-component coating systems, comprising a polyurethane alkyd resin component (A) composed of: (a) from 5 to 50% by weight of a mixture of: (a1) from 90 to 30 parts by weight of an unsaturated C6 to C30 fatty acid containing at least two nonconjugated double bonds, and (a2) from 10 to 70 parts by weight of an is unsaturated C6 to C30 fatty acid containing at least two conjugated double bonds as esterified polymer side chains of the polyurethane alkyd resin component (A) and (b) from 95 to 50% by weight of polyurethane units as polymer main chains of the polyurethane alkyd resin component (A).
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: February 13, 2001
    Assignee: BASF Coatings AG
    Inventors: Guido Wilke, Dittmar Grapatin, Heinz-Peter Rink