Patents by Inventor James E. Kearnan

James E. Kearnan 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).

  • Dispersible sulfur product and its process of manufacture
    Patent number: 4564670
    Abstract: A dispersed sulfur product having good flowability can be formed by dispersing particulate sulfur in a liquid poly(cis-isoprene) dispersion agent (i.e., either made by polymerizing synthetic cis-isoprene or by depolymerizing natural rubber). The sulfur product resulting therefrom has good dispersibility in rubber. The product can be formed without using an aqueous co-precipitation technique by simply mixing the liquid poly-(cis-isoprene) dispersion agent with a major amount of sulfur until the desired product results.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: January 14, 1986
    Assignee: Stauffer Chemical Company
    Inventor: James E. Kearnan