| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polymerizable liquid crystal compound having characteristics necessary for optical isomers and the like, and to provide a liquid crystal display element containing the polymer. <P>SOLUTION: At least one compound represented by the formula and having two or four acryloyloxy groups on a liquid crystal molecule, a composition containing the compound, and a polymer obtained by polymerizing the compound or composition and having a high crosslink density are provided. The compound having characteristics necessary for optical anisotropy and the like, the composition containing the compound, the polymer having excellent characteristics such as transparency, mechanical strength, coatability, solubility, crystallization degree, shrinkage, water permeability, water absorbability, melting point, glass transition point, clearing point, and chemical resistance, a molded article having optical anisotropy and obtained from the polymer, and a liquid crystal display element containing the polymer are provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
