Patents by Inventor David Hamilton Thomas

David Hamilton Thomas 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).

  • Unsaturated polyester resin composition comprising polypropylene adipate
    Patent number: 4102837
    Abstract: An ethylenically unsaturated polyester resin composition which comprises an ethylenically unsaturated polyester, an ethylenically unsaturated monomer copolymerizable therewith and a plasticizer, particularly a liquid saturated polyester and/or stearic acid, the ethylenically unsaturated polyester being derived in part from terephthalic acid.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: July 25, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: David Hamilton Thomas