Patent ID: 9505980
Filing Date: 2016-11-29
CPC Classification: C09K

Claim Text:
1. A polymerizable liquid crystal composition, containing an optically active compound having a binaphthol moiety, an achiral polymerizable liquid crystal compound and a photopolymerization initiator (C) having oxime ester, wherein an absorption maximum wavelength of a mixture including the achiral polymerizable liquid crystal compound and the optically active compound having the binaphthol moiety is in the range of 220 to 400 nanometers, and the absorption maximum wavelength is different from an absorption maximum wavelength of the photopolymerization initiator having oxime ester by 50 nanometers or more, and wherein the achiral polymerizable liquid crystal compound is component (A) being at least one compound represented by formula (1-1), and the optically active compound having the binaphthol moiety is component (B) being at least one compound represented by formula (2-2): wherein, in formula (1-1), X′ is independently hydrogen, methyl, fluorine or trifluoromethyl; W W n in formula (2-2), Y in formula (2-1), R A Z p is independently an integer from 1 to 20; and r is independently an integer from 1 to 3.