Patents by Inventor Klaus Kackstaedter

Klaus Kackstaedter 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).

  • Process for the whitening of textile fibres of polyesters
    Patent number: 4057387
    Abstract: Process for whitening textile fibres of polyesters or blended fibres of polyesters and cellulose or wool with dispers fluorescent whitening agents according to a combined exhaustion and thermo-fixing process, in the presence of auxiliaries e.g. esters in combination with water-soluble alkali metal salts or ampholytes which are capable of forming an aqueous two-phase system.
    Type: Grant
    Filed: January 8, 1976
    Date of Patent: November 8, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Kackstaedter, Hans Theidel