Invention Grant
US08454857B2 Polymerizable liquid crystal compounds, polymerizable liquid crystal compositions, liquid crystalline polymers and optically anisotropic materials 有权
可聚合液晶化合物,可聚合液晶组合物,液晶聚合物和光学各向异性材料

Polymerizable liquid crystal compounds, polymerizable liquid crystal compositions, liquid crystalline polymers and optically anisotropic materials
Abstract:
A polymerizable liquid crystal compound shown by the following formula, a polymerizable liquid crystal composition that includes the polymerizable liquid crystal compound and a chiral compound polymerizable with the polymerizable liquid crystal compound, a liquid crystalline polymer obtained by polymerizing the polymerizable liquid crystal compound or the polymerizable liquid crystal composition, and an optically anisotropic article that includes the liquid crystalline polymer, are disclosed. wherein Y1 to Y6 represent —O—C(═O)— or the like, G1 and G2 represent a divalent aliphatic group having 1 to 20 carbon atoms or the like, Z1 and Z2 represent an alkenyl group having 2 to 10 carbon atoms or the like, A1 and A2 represent a divalent organic group having 1 to 30 carbon atoms, M1 and M2 represent a substituted or unsubstituted 2,6-naphthylene group or a substituted or unsubstituted 1,4-phenylene group, provided that at least one of M1 and M2 represents a substituted or unsubstituted 2,6-naphthylene group, L1 and L2 represent a hydrogen atom or the like, and a and b are 0 or 1. A polymerizable liquid crystal compound that shows a liquid crystal phase over a wide temperature range, is chemically stable, can be produced inexpensively, and has a wide selective reflection wavelength band Δλ (i.e., a large value Δn); a polymerizable liquid crystal composition that includes the compound; a liquid crystalline polymer; and a optically anisotropic article that includes the liquid crystalline polymer as a constituting material; can be provided.
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