Patents by Inventor Richard Lee Rowton

Richard Lee Rowton 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).

  • Polyurethane elastomers having improved sag resistance
    Patent number: 3979364
    Abstract: The use of small amounts of an amine-terminated polyether in the B-component of a two-component polyurethane composition results in the immediate thickening of the A and B-components upon mixing to provide an elastomer precursor with improved sag resistance without substantially affecting the workability of the mixed components or the properties of the cured elastomer. These elastomers are useful as sealants, caulks and surface coatings.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: September 7, 1976
    Assignee: Jefferson Chemical Company, Inc.
    Inventor: Richard Lee Rowton