Patents by Inventor Herbert Heinen

Herbert Heinen 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).

  • Method of synthesizing polyvinyl chloride compositions
    Patent number: 4137202
    Abstract: A process of preparing polyvinyl chloride by the polymerization of monomeric material consisting essentially of vinyl chloride in an aqueous medium containing a suspension vehicle, catalyst for the polymerization, and at least one additive such as stabilizers, lubricants, fillers and pigments. Free-flowing polyvinyl chloride is obtained by dissolving ethylene-vinyl ester copolymer in the vinyl chloride before beginning the polymerization.
    Type: Grant
    Filed: December 27, 1974
    Date of Patent: January 30, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventor: Herbert Heinen