Patent ID: 11945908
Assignee: IDEMITSU KOSAN CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. The polycarbonate-polyorganosiloxane copolymer according to claim 1, wherein the polyorganosiloxane block (A-2) contains a unit represented by at least one of the following general formula (II-I), (II-II), or (II-III):, wherein R3 to R6 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or an aryl group having 6 to 12 carbon atoms, and a plurality of R3s, R4s, R5s, or R6s may be identical to or different from each other, Y represents —R7O—, —RC7OO—, —R7NR8—, —COO—, —S—, —R7COO—R9—O—, or —R7O—R10—O—, and a plurality of Ys may be identical to or different from each other, the R7 represents a single bond, a linear, branched, or cyclic alkylene group, an aryl-substituted alkylene group, a substituted or unsubstituted arylene group, or a diarylene group, R8 represents an alkyl group, an alkenyl group, an aryl group, or an aralkyl group, R9 represents a diarylene group, R10 represents a linear, branched, or cyclic alkylene group, or a diarylene group, β represents a divalent group derived from a diisocyanate compound, or a divalent group derived from a dicarboxylic acid or a halide of a dicarboxylic acid, “n” represents a chain length of a polyorganosiloxane, and n−1, and “p” and “q” each represent a number of repetitions of a polyorganosiloxane unit and each represent an integer of 1 or more, and a sum of “p” and “q” is n−2.