Patents by Inventor Gunther Lyding

Gunther Lyding 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 recovery of valuable materials during the work-up of polyvinyl chloride
    Patent number: 5464876
    Abstract: Heating of polyvinyl chloride, in particular plasticizer-containing polyvinyl chloride, to a temperature of from 250.degree. to 500.degree. C. in the absence of oxygen gives a low-chlorine, carbon-containing residue, plasticizer and hydrogen chloride.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: November 7, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunther Lyding, Maria Pille, Helmold von Plessen, Joachim Semel