Patent ID: 8158021
Filing Date: 2012-04-17
Classification: C08F,C09K,G02B,G02F

Abstract:
1. A polymerizable liquid crystal compound shown by the following formula (I), wherein Y 1 to Y 6 individually represent —O—, —O—C(═O)—, or —C(═O)—O—, G 1 and G 2 individually represent substituted or unsubstituted divalent aliphatic groups having 1 to 20 carbon atoms, provided that —O—, —S—, —O—C(═O)—, —C(═O)—O—, —O—C(═O)—O—, —NR 2 —C(═O)—, —C(═O)—NR 2 —, —NR 2 —, or —C(═O)— may be included in the aliphatic group (excluding a case where two or more —O— or —S— linkages are adjacently included in the aliphatic group) (wherein R 2 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms), Z 1 and Z 2 individually represent alkenyl groups having 2 to 10 carbon atoms that may be substituted with a halogen atom, A 1 and A 2 individually represent divalent organic groups A having 1 to 30 carbon atoms, X 1 to X 8 individually represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a cyano group, a nitro group, —OR 3 , —O—C(═O)—R 3 , —C(═O)—OR 3 , —O—C(═O)—OR 3 , —NR 4 —C(═O)—R 3 , —C(═O)—NR 3 , —O—C(═O)—NR 3 , or —Y 7 -G 3 -Y 8 -Z 3 (wherein R 3 represents a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, provided that, when R 3 represents an alkyl group, —O—, —S—, —O—C(═O)—, —C(=o)—O—, —O—C(═O)—O—, —NR 5 —C(═O)—, —C(═O)—NR 5 —, —NR 5 —, or —C(═O)— may be included in the alkyl group (excluding a case where two or more —O— or —S— linkages are adjacently included in the alkyl group), R 4 and R 5 represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, Y 7 and Y 8 have the same meaning as Y 1 to Y 6 , G 3 has the same meaning as G 1 and G 2 , and Z 3 has the same meaning as Z 1 and Z 2 ), and a and b individually represent 0 or 1.