Patents by Inventor Harold E. Adams

Harold E. Adams 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 hydrohalogenation of buta-diene-containing polymers
    Patent number: 4129699
    Abstract: Disclosed is a novel process for the hydrohalogenation of polybutadiene and butadiene-containing copolymers in the presence of aqueous hydrogen halides. The process permits the hydrohalogenation of from about 1 to about 50% of the carbon-carbon double bonds of the polybutadiene chain and includes the steps of dissolving the polymer in a suitable organic solvent containing a catalytic amount of a quaternary ammonium salt, adding an aqueous hydrogen halide, mixing the reactants and thereafter extracting the hydrohalogenated product.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: December 12, 1978
    Assignee: The Firestone Tire & Rubber Company
    Inventors: Harold E. Adams, Stephen P. Boutsicaris, Adel F. Halasa