Patent ID: 7811467
Filing Date: 2010-10-12
Classification: C08F,C09K,G02B,G02F

Abstract:
1. A composition comprising a polymerizable compound of the formula (1) and a rod-shaped polymerizable liquid crystal compound: (in the formula (1), Y represents a di-valent group, s and t represent each independently an integer of 0 or 1, G1 and G2 when s and t are 1 represent each independently —CR —CRR′—, —C≡C—, —CH═CH—, —CH [in the formula (2), A3 represents a di-valent cyclic hydrocarbon group or heterocyclic group, B3 represents the same meaning as for said B1 and B2, and n represents an integer of 1 to 4] E1 and E2 represent each independently an alkylene group having 2 to 25 carbon atoms, and to E1 and E2, an alkyl group having 1 to 5 carbon atoms, alkoxy group having 1 to 5 carbon atoms or halogen atom may further be bonded, and P1 and P2 represent a hydrogen atom or polymerizable group, at least one of P1 and P2 being a polymerizable group).