申请人:Chisso Corporation
公开号:US05032314A1
公开(公告)日:1991-07-16
A compound capable of shortening the response time of liquid crystal display elements and a composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 represents a linear or branched chain alkyl group or alkoxy group, each of 1C-18C; Ar represents ##STR2## wherein X represents H, halogen atom, cyano group or methyl; A represents --COO-- or --CH.sub.2 O--; R.sup.2 represents a C.sub.1 -C.sub.18 alkyl, A C.sub.2 -C.sub.18 alkanoyl, a C.sub.3 -C.sub.18 alkoxycarbonyl or a C.sub.4 -C.sub.18 2-alkoxypropanoyl; C having a symbol * attached thereonto represents asymmetric carbon atom; and when R.sup.2 represents a linear chain alkyl and A represents --COO--, Ar is not ##STR3##
提供了一种能够缩短液晶显示元件响应时间的化合物及含有该化合物的组合物,该化合物由以下式表示:##STR1## 其中R.sup.1代表1C-18C的线性或支链烷基或烷氧基;Ar代表##STR2## 其中X代表H、卤素原子、氰基或甲基;A代表--COO--或--CH.sub.2 O--;R.sup.2代表C.sub.1 -C.sub.18烷基,C.sub.2 -C.sub.18酰基,C.sub.3 -C.sub.18烷氧羰基或C.sub.4 -C.sub.18 2-烷氧基丙酰基;带有符号*的C代表不对称碳原子;当R.sup.2代表线性链烷基且A代表--COO--时,Ar不是##STR3##