公开(公告)号：US5439613A

公开(公告)日：1995-08-08

申请号：US173068

申请日：1993-12-27

申请人： Fusayuki Takeshita ,  Taku Hirose ,  Kanetsugu Terashima ,  Sinichi Sawada

发明人： Fusayuki Takeshita ,  Taku Hirose ,  Kanetsugu Terashima ,  Sinichi Sawada

IPC分类号： C09K19/30 ,  C09K19/42 ,  C09K19/50 ,  C09K19/58 ,  G02F1/13 ,  C09K19/12 ,  C09K19/32

CPC分类号： C09K19/50 ,  C09K19/3001 ,  C09K19/586

摘要： A liquid crystal composition which is a liquid crystal mixture of an achiral liquid crystal compound of the following formula (IV) with a chiral compound having an adsorptivity to adsorbents, not greater than that of the achiral compound: ##STR1## wherein six-membered rings A', B', C' and D' each independently are trans-1,4-cyclohexylene, 1-cyclohexene-1,4-diyl or 1,4-phenylene; g, h and i each are 0 or 1; (g+h+i).gtoreq.1; X', Y' and Z' each independently are a single bond, --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH-- or --C.tbd.C--; R.sup.7 is C.sub.n H.sub.2n+1 --, C.sub.n H.sub.2n-1 or C.sub.n H.sub.2n+1 OC.sub.k H.sub.2k --; R.sup.8 is C.sub.m H.sub.2m+1 --, C.sub.m H.sub.2m+1 O--, F, CHF.sub.2 O or CF.sub.3 O--; n and m each independently are an integer of 1 to 18; k is an integer of 1 to 17; (n+k) is 2 to 18; at least one of X', Y' and Z' is single bond; when ring D' is 1,4-phenylene and R.sup.8 is F, CHF.sub.2 O-- or CF.sub.3 O--, then H at ortho position as regards R.sup.8 may be replaced by F; and when g is 1 and ring B' or C' is 1,4-phenylene, then H at the lateral position of the ring may be replaced by F.

摘要翻译： 作为下式（IV）的非手性液晶化合物与对吸附剂具有吸附性的手性化合物的液晶混合物的液晶组合物，不大于非手性化合物：“IMAGE”D“各自独立地为 反式-1,4-亚环己基，1-环己烯-1,4-二基或1,4-亚苯基; g，h和i各自为0或1; （g + h + i）> / = 1; X'，Y'和Z'各自独立地为单键，-CH 2 -CH 2 - ， - CH = CH-或-CB 3 C-; R7是CnH2n + 1-，CnH2n-1或CnH2n + 1OCkH2k-; R8是CmH2m + 1-，CmH2m + 10，F，CHF2O或CF3O-; n和m各自独立地为1至18的整数; k为1〜17的整数。 （n + k）为2〜18; X'，Y'和Z'中的至少一个是单键; 当环D'为1,4-亚苯基且R8为F，CHF2O-或CF3O-时，则关于R8的邻位的H可被F取代; 当g为1且环B'或C'为1,4-亚苯基时，则环的横向位置的H可以被F替代。