Patent ID: 8262932

Claim:
A polymerizable liquid crystal compound represented by formula (I): where R 0 and R 1 each independently represent a hydrogen atom, or a C 1-4 alkyl group which may have at least one substituent, provided that at least one of R 0 and R 1 represent a C 1-4 alkyl group which may have at least one substituent; A 0 , A1, B 0 and B 1 each independently represent a single bond, or a divalent linking group having a cyclic structure which may have at least one substituent; X 0 , X 1 , Y 0 and Y 1 each independently represent a single bond, —O—, —S—, —OCO—, —COO—, —OCOO—, —NR 2 CO—, —CONR 2 —, —OCONR 2 —, —NR 2 COO—, —NR 2 CONR 2 —, —C═N— or —N═C— where R 2 represents a hydrogen atom or C 1-3 alkyl group which may have at least one substituent; Q 0 and Q 1 each independently represent a single bond or a C 1-20 divalent aliphatic group which may have at least one substituent, provided that one —CH 2 — or two or more —CH 2 —, which may be not adjacent to each other, may be replaced with —O—, —S—, —NR 3 —, —OCO—, —COO—, —OCOO—, —NR 3 CO—, or —CONR 3 —; R 3 represents a hydrogen atom or C 1-3 alkyl group; Z 0 and Z 1 each independently represent a hydrogen atom, cyano, halogen atom or polymerizable group; and n and m each independently represent an integer of from 0 to 2.