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US 4,906,709 AGranted
Blends of polycarbonates with polyesters from trans-4,4'-stilbenedicarboxylic acid and 1,6-hexanediol
AssigneeEastman Kodak Company
InventorsJohn C. Morris, Winston J. Jackson, Jr.
Life of this patent
Estimating the term…
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.
Claims9
Composition of matter comprising a blend of
- (a) about 10-95 weight % of a polyester containing repeating units from at least 80 mol % trans-4,4'-stilbenedicarboxylic acid and at least 80 mol % 1,6-hexanediol, based on 100 mol % of an acid component and 100 mol % of a glycol component, said polyester having an I.V. of at least 0.8 and
- (b) about 90-5 weight % of a polycarbonate of 4,4'-isopropylidenediphenol having an I.V. of at least 0.3, the I.V. of said polyester and polycarbonate being determined at 25.degree. C. in 25/35/40 by wt phenol/tetrachloroethanol/p-chlorophenol at a concentration of 0.1 g/100 mL.
Composition of matter comprising a blend of
- (a) about 60-90 weight % of a polyester consisting essentially of repeating units from trans-4,4'-stilbenedicarboxylic acid and 1,6-hexanediol, said polyester having an I.V. of at least 0.8, and
- (b) about 40-10 weight % of a polycarbonate of 4,4'-isopropylidenediphenol having an I.V. of at least 0.3.
Dependencies are inferred from the claim text.