专利检索 ap:("Seiji Hayashi" OR "Jun Nakauchi" OR "Keiichi Sakashita" OR "Yoshitaka Kageyama" OR "Yoshihiko Sako") AND inv:"Yoshihiko Sako" 第 1 页

1.

发明授权
Optically active compound and liquid crystal composition 失效
标题翻译：光学活性化合物和液晶组合物

公开(公告)号：US5098599A

公开(公告)日：1992-03-24

申请号：US758217

申请日：1991-09-12

申请人： Seiji Hayashi , Jun Nakauchi , Keiichi Sakashita , Yoshitaka Kageyama , Yoshihiko Sako

发明人： Seiji Hayashi , Jun Nakauchi , Keiichi Sakashita , Yoshitaka Kageyama , Yoshihiko Sako

IPC分类号： C07C323/52 , C07D213/30 , C07D213/65 , C07D239/26 , C07D239/34 , C09K19/12 , C09K19/20 , C09K19/34 , C09K19/46

CPC分类号： C09K19/3441 , C07C323/52 , C07D239/34 , C09K19/126 , C09K19/2021

摘要： Disclosed is an optically active compound represented by the formula: ##STR1## or a single bond, Z stands for a hydrogen atom, a halogen atom or a cyano group, R.sub.1 stands for an alkyl group or fluoroalkyl group having 1 to 18 carbon atoms, R.sub.2 stands for an alkyl group or alkoxy group having 1 to 18 carbon atoms, and *C stands for the asymmetric carbon atom. This compound is used as a ferroelectric liquid crystal or an additive to a ferroelectric liquid crystal.