US 2025/0101173 A1 · BIODEGRADABLE POLYCARBONATE COPOLYMER COMPRISING UNITS DERIVED FROM ANHYDROSUGAR ALCOHOL, ANHYDROSUGAR ALCOHOL-ALKYLENE GLYCOL, AND AROMATIC DIOL, METHOD FOR PRODUCING SAME, AND MOLDED PRODUCT COMPRISING SAME

Abstract

The present invention relates to a polycarbonate copolymer, a method for producing same, and a molded product comprising same, and more specifically, to: a polycarbonate copolymer exhibiting biodegradability and improved tensile strength and elongation compared to conventional polycarbonate copolymers due to including repeating units derived from a carbonate diester component and a diol component containing anhydrosugar alcohol, anhydrosugar alcohol-alkylene glycol, and aromatic diol in a specific content ratio; a method for producing the polycarbonate copolymer; and a molded article comprising the polycarbonate copolymer.

Claims12

Dependent claims

A polycarbonate copolymer comprising:

repeating units derived from a diol component;
and repeating units derived from a carbonic acid diester component;
wherein the diol component comprises, based on total 100 mol % of the diol component, (a) 0.3 to 66.9 mol % of anhydrosugar alcohol, (b) 0.3 to 56.9 mol % of anhydrosugar alcohol-alkylene glycol and (c) 32.1 to 99.4 mol % of aromatic diol.

Dependencies are inferred from the claim text.

Biodegradable polycarbonate copolymer comprising units derived from anhydrosugar alcohol, anhydrosugar alcohol-alkylene glycol, and aromatic diol, method for producing same, and molded product comprising same

Life of this patent

Biodegradable polycarbonate copolymer comprising units derived from anhydrosugar alcohol, anhydrosugar alcohol-alkylene glycol, and aromatic diol, method for producing same, and molded product comprising same

Life of this patent

Abstract

Claims12