申请人:Rolic AG
公开号:US05800733A1
公开(公告)日:1998-09-01
The present invention is concerned with photo cross-linkable liquid crystalline compounds in the formula ##STR1## wherein for example: A,B,C,D,E,F independently is pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl Z.sup.1, Z.sup.2, Z.sup.7 independently is --(CH.sub.2).sub.s O--, --COO--, --(CH.sub.2).sub.s COO-- Z.sup.3, Z.sup.4, Z.sup.8 independently is a single bond, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O-- Z.sup.5, Z.sup.6 independently is --(CH.sub.2).sub.s -- m, n, q and r independently is 0, 1 or 2; s is a whole number of 1 to 16; R.sup.1, R.sup.2 independently is CH.sub.2 .dbd.CH--COO--, CH.sub.2 .dbd.C(CH.sub.3)--COO-- R.sup.3 is H, CH, COOC.sub.n H.sub.2n+1, CnH.sub.2n+1 ; n=1 . . . 10 X.sup.1, X.sup.2 and X.sup.3 independently is hydrogen, halogen, cyano or lower alkyl. The invention is also related to liquid crystalline mixtures and their use for electro-optical purpose.
本发明涉及公式##STR1##中的光交联液晶化合物,其中例如:A,B,C,D,E,F独立地是吡啶-2,5-二基苯,嘧啶-2,5-二基苯,反-1,4-环己烷基,反-1,3-二氧六环-2,5-二基苯Z.sup.1,Z.sup.2,Z.sup.7独立地是--(CH.sub.2).sub.s O--,--COO--,--(CH.sub.2).sub.s COO--Z.sup.3,Z.sup.4,Z.sup.8独立地是单键,--CH.sub.2 CH.sub.2 --,--CH.sub.2 O--Z.sup.5,Z.sup.6独立地是--(CH.sub.2).sub.s--m,n,q和r独立地是0,1或2;s是1到16的整数;R.sup.1,R.sup.2独立地是CH.sub.2.dbd.CH--COO--,CH.sub.2.dbd.C(CH.sub.3)--COO--R.sup.3是H,CH,COOC.sub.n H.sub.2n+1,CnH.sub.2n+1;n=1 . . . 10 X.sup.1,X.sup.2和X.sup.3独立地是氢,卤素,氰基或低烷基。本发明还涉及液晶混合物及其用于电光目的的使用。