Patents Represented by Attorney John P. Stevens

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  • Blends of polycarbonates with polyesters from trans-4,4'-stilbenedicarboxylic acid and 1,6-hexanediol
    Patent number: 4906709
    Abstract: Disclosed are compositions of matter characterized by having a tensile strength of at least 13,000 psi and moldable at temperatures below 285.degree. C. comprising a blend of(a) about 10-95 weight % of a polyester containing repeating units from trans-4,4'-stilbenedicarboxylic acid 1,6-hexanediol, and(b) about 90-5 weight % of a polycarbonate of 4,4'-isopropylidenediphenol.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: March 6, 1990
    Assignee: Eastman Kodak Company
    Inventors: John C. Morris, Winston J. Jackson, Jr.