Patents by Inventor Adolf Donig

Adolf Donig 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).

  • False twist texturized yarn, and a process for its preparation
    Patent number: 4559772
    Abstract: The invention relates to a yarn composed of false twist texturized synthetic yarn components where one of the components only has a crimp contraction of less than 10% and to a process for preparing the yarn, in which the yarn component with reduced crimp contraction is obtained by using a number of turns of false twist reduced to 35 to 65% of the Heberlein value and, if appropriate, texturizing temperatures of 120.degree. to 180.degree. C.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: December 24, 1985
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Heinrich, Norbert Heichlinger, Adolf Donig