Patent ID: 7488519
Filing Date: 2009-02-10
Classification: C08F,C09K

Abstract:
1. A polymerizable liquid crystal composition comprising at least one compound selected from a group of compounds represented by formulae (1-1) and (1-2) as a component (A), at least one compound selected from a group of compounds represented by formula (2) as a component (B), at least one compound selected from a group of compounds represented by formulae (3-1) to (3-3) as a component (C) and at least one compound selected from a group of compounds represented by formulae (4-1A), (4-1B), (4-2), (4-3), (4-4) and (4-5) as a component (D), and optionally containing at least one compound selected from a group of compounds represented by formulae (5-1) and (5-2) as a component (E): wherein Z 1 independently represents hydrogen, fluorine, methyl or trifluoromethyl; W 1 independently represents hydrogen or fluorine; W 2 independently represents hydrogen or methyl; X 1 independently represents —O— or a group represented by formula (a); and m1 independently represents an integer of from 2 to 15, wherein Z 2 represents hydrogen or methyl; W 3 represents hydrogen or fluorine; R 1 represents —CN, —OCF 3 , alkyl having from 1 to 10 carbon atoms or alkoxy having from 1 to 10 carbon atoms; X 2 represents a single bond, —COO— or —OCO—; and m1 represents an integer of from 2 to 15, wherein Z 2 independently represents hydrogen or methyl; R 3 independently represents hydrogen or alkyl having from 1 to 6 carbon atoms; R 4 independently represents hydrogen or alkyl having from 1 to 6 carbon atoms; R 5 independently represents hydrogen or methyl; W 4 independently represents hydrogen, alkyl having from 1 to 6 carbon atoms, phenyl or halogen; n1 independently represents an integer of from 1 to 3; n2 independently represents an integer of from 1 to 3; n3 independently represents an integer of from 0 to 10; and r1 independently represents an integer of from 2 to 5, wherein Z 2 independently represents hydrogen or methyl; Z 4 represents hydrogen, methyl or ethyl; d represents 0 or 1; Ep represents a group represented by one of formulae (4-2-1) to (4-2-4); Y represents alkylene having from 1 to 20 carbon atoms, and in the alkylene, one or two —CH 2 — not adjacent to each other may be replaced by —O—; X represents alkoxy having from 1 to 4 carbon atoms or trimethylsiloxy; R 6 represents alkyl having from 1 to 4 carbon atoms; r2 represents an integer of from 1 to 3; s and q each independently represents an integer of from 0 to 3; and the sum of r2, s and q is 4; Z wherein Z 2 independently represents hydrogen or methyl; X 5 independently represents a single bond, —(CH 2 ) 2 — or —CH═CH—; W 1 independently represents hydrogen or fluorine; and m1 independently represents an integer of from 2 to 15.