Patents by Inventor Klaus Kuber

Klaus Kuber 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 fine dispersion of an organophilic sheet silicate
    Patent number: 5294254
    Abstract: The invention relates to an aqueous fine dispersion of an organophilic sheet silicate which is composed of a sheet silicate which is capable of cation exchange and of a quaternary organic onium salt reacted therewith, and contains 3 to 30% by weight, based on the organophilic sheet silicate, of polyvinyl alcohol. This fine dispersion is suitable as coating composition for paper and board and as lubricant additive for conventional coating compositions.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: March 15, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Guido Dessauer, Klaus Kuber, Ute Horn