申请人:Chisso Corporation
公开号:EP0267670A1
公开(公告)日:1988-05-18
An optically liquid crystalline compound having an extremely large spontaneous polarization value and a chiral smectic liquid crystal composition containing the compound are provided, the compound being expressed by the formula
wherein m represents an integer of 2 to 18; t represents an integer of 0 to 12; n represents 0 or 1; R represents an alkyl group or an alkoxy group each of 2 to 20 carbon atoms, a halogen atom or cyano group; and A and B each represent a single bond,
wherein X represents hydrogen atom, a halogen atom or cyano group, and a chiral smectic liquid crystal composition containing at least one kind of the above compound.
本发明提供了一种具有极大自发偏振值的光学液晶化合物和一种含有该化合物的手性平滑液晶组合物,该化合物由式表示
其中 m 代表 2 至 18 的整数;t 代表 0 至 12 的整数;n 代表 0 或 1;R 代表各含 2 至 20 个碳原子的烷基或烷氧基、卤素原子或氰基;以及 A 和 B 各代表一个单键、
其中 X 代表氢原子、卤素原子或氰基,以及含有至少一种上述化合物的手性平滑液晶组合物。