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US 4,904,747 AGranted
Blends of polycarbonates with polyesters from 4,4'-biphenyldicarboxylic acid and 1,6-hexanediol
AssigneeEastman Kodak Company
InventorsJohn C. Morris, Winston J. Jackson
Life of this patent
Estimating the term…
Abstract
Disclosed are compositions of matter characterized by having improved tensile strength comprising a blend of (a) about 30-95 weight % of a polyester containing repeating units from biphenyldicarboxylic acid 1,6-hexanediol, and (b) about 70-5 weight % of a polycarbonate of 4,4'-isopropylidenediphenol.
Claims10
Composition of matter having a tensile strength of at least 13,000 psi comprising a blend of
- (a) about 30-95 weight % of a polyester containing repeating units from at least 80 mol % biphenyldicarboxylic acid and at least 80 mol % 1,6-hexanediol, based on 100 mol % of an acid component and 100 mol % of a glycol component and having an I.V. of at least 0.8 and
- (b) about 70-5 weight % of a polycarbonate of 4,4'-isopropylidenediphenol having an I.V. of at least 0.3.
Composition of matter comprising a blend of
- (a) about 60-90 weight % of a polyester consisting essentially of repeating units from biphenyldicarboxylic acid and 1,6-hexanediol 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.