Patents by Inventor Harold J. Gros

Harold J. Gros 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 processing low molecular weight EPM and EPDM polymers
    Patent number: 4447582
    Abstract: A method of improving the handling of low molecular weight EPM or EPDM polymers which includes reacting the low molecular weight polymer with a monomer capable of providing quaternary salt forming groups and then cross linking the resulting polymer with a difunctional cross linking agent whereby the polymer takes on the characteristics of a high molecular weight polymer but which can be returned to the characteristics of a low molecular weight polymer upon exposure to elevated temperature.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: May 8, 1984
    Assignee: Copolymer Rubber & Chemical Corporation
    Inventor: Harold J. Gros
  • Particulate elastomeric materials and method
    Patent number: 4213888
    Abstract: The preparation of elastomeric materials in the form of free flowing particles in which the latex formed by the polymerization of the monomers in aqueous medium is coagulated to produce particles of a size within the range of 0.5 to 5 millimeters and in which the particles are ultimatedly dried and then cooled while in a fluidized state and which includes the addition of partitioning agents to obstruct agglomeration.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: July 22, 1980
    Assignee: Copolymer Rubber & Chemical Corporation
    Inventors: Rudolph F. Karg, Harold J. Gros