Patents by Inventor Hawkins, James M.

Hawkins, James M. 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).

  • Cellulose ester/copolyacrylate composition
    Patent number: 4263183
    Abstract: Blended composition of cellulose ester and a copolyacrylate having improved notched Izod impact strength and excellent visual clarity; the cellulose ester being selected from cellulose acetate butyrate and cellulose acetate propionate; and the copolyacrylate including about 5 to about 20 parts per hundred parts resin of a copolymer containing about 45 to about 55% by weight butyl acrylate and about 55 to about 45% by weight methyl acrylate.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: April 21, 1981
    Assignee: Eastman Kodak Company
    Inventors: Ronald R. Light, John R. Dombroski, Hawkins, James M.