Patents Examined by Alex Walker
  • Copolymers of dioxolanes and maleic anhydride
    Patent number: 5019635
    Abstract: Copolymers are made by reacting maleic anhydride or a related compound with a 4-vinyl-1,3-dioxolane in the presence of a free radical initiator. The dioxolane reactant can be made by reacting a ketone with 3,4-epoxy-1-butene, or a substituted derivative thereof.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: May 28, 1991
    Assignee: Eastman Kodak Company
    Inventors: Richard W. Blevins, S. Richard Turner