申请人:Chisso Corporation
公开号:US05021191A1
公开(公告)日:1991-06-04
An optically active substance which, when added as a component of ferroelectric liquid crystal compositions, is extremely small in the reduction of the resulting liquid crystal temperature region, and a liquid crystal composition containing the same are provided, which substance is an optically active-2-alkoxy-propyl ether expressed by the formula (I) ##STR1## wherein R.sup.1 represents a straight or branched chain alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl each of 1 to 18 C; R.sup.2 represents a linear or branched chain alkyl each of 1 to 15 C; --A-- represents a specified group constituted by two directly bonded, six-membered rings; and * indicates asymmetric carbon atom.
提供一种光学活性物质,当作为铁电液晶组分添加时,极大地减小了产生的液晶温度区域,提供一种含有该物质的液晶组合物,该物质是由式(I)表示的光学活性-2-烷氧基丙基醚,其中R.sup.1代表1至18个碳的直链或支链烷基、烷氧基、烷酰基、烷酰氧基或烷氧羰基;R.sup.2代表1至15个碳的直链或支链烷基;--A--代表由两个直接连接的六元环组成的特定基团;*表示不对称碳原子。