Patents by Inventor Gary L. Rempel

Gary L. Rempel 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).

  • Polymer hydrogenation process
    Patent number: 4464515
    Abstract: A process is provided for the selective hydrogenation of the carbon-carbon double bonds in a copolymer of a conjugated diene and one or more copolymerizable monomers comprising hydrogenating the copolymer in the presence of (i) a monovalent rhodium hydride complex catalyst, (ii) a ligand compound, and (iii) a solvent for the copolymer, catalyst and ligand compound.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: August 7, 1984
    Assignee: Polysar Limited
    Inventors: Gary L. Rempel, Hormoz Azizian