Patent ID: 9018340
Filing Date: 2015-04-28
Classification: C08G

Abstract:
1. A copolycarbonate comprising a unit (A) constituted of an ether diol residue represented by the following formula (1), a unit (B) constituted of a bisphenol residue represented by the following formula (2), and a unit (C) constituted of another diol residue, wherein (I) the unit (C) is at least one diol residue selected from the group consisting of aliphatic diol residue, alicylic diol residue, oxylene glycol residue and diol residue having a cyclic ether structure, (II) the content of the unit (A) is 40 to 92 mol %, the content of the unit (B) is 5 to 57 mol %, and the content of the unit (C) is 3 to 55 mol % based on the total number of moles of the units (A), (B) and (C); and (III) the ratio of terminal groups falls within the ranges of the following expressions (i) and (ii): wherein, in the above expressions, the total number of all terminal groups is the total number of the hydroxyl group of the ether diol, the phenolic hydroxyl group, the hydroxyl group of the aliphatic diol, the hydroxyl group of the alicyclic diol, the hydroxyl group of oxylene glycol, the hydroxyl group of the cyclic ether diol and all phenyl carbonate terminals, wherein, in the above formula (2), R wherein, in the above formulas (3), R