Patent ID: 9403940
Filing Date: 2016-08-02
CPC Classification: C08G

Claim Text:
1. A polyalkylenecarbonate resin produced by solution copolymerization, the polycarbonate resin comprising 0.1 to 6 mol % of a repeat unit of Chemical Formula 3a or Chemical Formula 3b; 90 to 99 mol % of a repeat unit of Chemical Formula 3c; and 0.1 to 6 mol % of a repeat unit of Chemical Formula 3d, wherein the repeat unit of Chemical Formula 3a or Chemical Formula 3b, the repeat unit of Chemical Formula 3c and the repeat unit of Chemical Formula 3d, respectively, form polymer blocks, the polymer blocks being bonded to each other in a random sequence by a single bond or a C1-3 alkylene group: wherein in the Chemical Formulae 3a to 3d, R1 is a single bond or C1-4 alkylene, n is an integer of 2 to 250, m is an integer of 10 to 5000, 1 is an integer of 2 to 250, A is a single bond, a C1-9 alkylene group or a C6-20 arylene group, and A′ is hydrogen or a methyl group.