POLYMERIZABLE LIQUID CRYSTAL COMPOSITION, OPTICAL FILM INCLUDING THE SAME, AND METHOD FOR PRODUCING OPTICAL FILM
申请人:DIC Corporation
公开号:US20200199452A1
公开(公告)日:2020-06-25
A polymerizable liquid crystal composition suitable for a heat-resistant, optical film that has a small selective wavelength shift due to thermal history is disclosed. The polymerizable liquid crystal composition contains a bifunctional polymerizable liquid crystal compound represented by the following general formula (I-2), a chiral compound, and an oxime ester polymerization initiator. In formula (I-2), P
121
and P
122
denote a polymerizable functional group, Sp
121
and Sp
122
denote a C1-18 alkylene group, a single bond, or the like, X
121
and X
122
denote —O—, —S—, or the like, q121 and g122 denote 0 or 1, and MG
122
denotes a mesogenic group represented by the general formula (I-2-b). In the general formula (I-2-b), A1, A2, and A3 denote a 1,4-phenylene group, a 1,4-cyclohexylene group, or the like, Z1 and Z2 denote —COO—, —OCO—, or the like, and r1 denotes 0, 1, 2 or 3.
P
121
-(Sp
121
-X
121
)
q121
-MG
121
-(X
122
-Sp
122
)
q122
-P
122
(I-2)
-(A1-Z1)
r1
-A2-Z2-A3- (I-2-b)