Patents by Inventor Werner Kapfer

Werner Kapfer 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).

  • Wax preparation comprising partial esters of polyols and montan wax acid and Ca soaps of montan wax acid
    Patent number: 6316650
    Abstract: The present invention relates to a wax mixture comprising a) 10-80% by weight of partial esters of polyols with carboxylic acids or carboxylic acid mixtures having a chain length of C16-C36; b) 0-30% by weight of partial esters of polyols with polybasic carboxylic acids having a chain length of C4-C36; and c) 20-90% by weight of alkaline earth metal soaps of the abovementioned carboxylic acids or carboxylic acid mixtures, with the proviso that 1,2-ethanediol and 1,3-butanediol are excluded. The wax mixtures are highly suitable for the preparation of solvent pastes as a single component or in combination with synthetic, natural or semi-synthetic wax-like products, as lubricants or release agents in plastic or metal processing, and for the preparation of microfine wax powders.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: November 13, 2001
    Assignee: Clariant GmbH
    Inventors: Franz-Leo Heinrichs, Monika Drechsler, Werner Kapfer, Andree Henze