Patent ID: 8372942

Claim:
A urethane-copolymerized polycarbonate resin, comprising: a repeating unit represented by the following formula [1]; and a repeating unit represented by the following formula [2]: wherein Ar 2 represents a group having a divalent aromatic group, and Ar 1 represents a group represented by the following formula [3]: wherein X 5 represents a single bond, —O—, —CO—, —S—, —SO—, —SO 2 —, —CONH—, —CR 21 R 22 —, or —O—R 23 —O—; R 21 and R 22 each independently represent a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, a trifluoromethyl group, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; R 23 represents a carbonyl group, an alkyl chain having 1 to 6 carbon atoms, or a trifluoroalkyl chain, and may include a branched alkyl chain, a substituted or unsubstituted cycloalkylidene group having 5 to 12 carbon atoms, a substituted or unsubstituted adamantane-2,2-diyl or adamantane-1,3-diyl group, a substituted or unsubstituted α,ω-alkylene group having 2 to 12 carbon atoms, a 9,9-fluorenylidene group, a 1,8-menthanediyl group, a 2,8-menthanediyl group, a substituted or unsubstituted pyrazylidene group, or a substituted or unsubstituted arylene group having 6 to 12 carbon atoms; R 19 and R 20 each represent a halogen atom, a trifluoromethyl group, an alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 12 carbon atoms, or a substituted or unsubstituted arylalkyl group having 7 to 20 carbon atoms; w 1 and w 2 each represent an integer of 0 to 4; and a number n 3 of repeating units represents 0 to 5; R 19 's, w 1 's, and X 5 's in the repeating units are each capable of being selected for each repeating unit; and when an aromatic ring is substituted with two or more R 19 's or R 20 's, the R 19 's or R 20 's are capable of representing different substituents.