Liquid crystal cyanoalkanes and cyanoalkenes

Details Liquid crystal cyanoalkanes and cyanoalkenes Liquid crystal cyanoalkanes and cyanoalkenes

1992-10-08

1995-10-10

Harris, Cynthia

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229966, 25229901, 558388, 359103, C09K 1930, C09K 1912, C07C25500, G02F 113

Patent

active

054568595

ABSTRACT:
There is disclosed a cyanoalkane and cyanoalkene of general formula (I) which shows liquid crystalline properties: wherein R and R.sup.1 are independently C.sub.1-12 alkyl, alkoxy, perfluoroalkyl or perfluoroalkoxy; rings A, B, C and D are independently phenyl, which may carry one or two halogen substituents, trans-cyclohexyl, or (2, 2, 2) bicyclooctyl, each of a, b, c or d being independently 0 or 1 provided (a+b+c+d) is 2 or 3; links A and C are independently a single bond, CH.sub.2 CH.sub.2, COO, OOC, CH.sub.2 O or OCH.sub.2 ; n, m and p are independently 0 or an integer 1 to 4 provided (n+m+p) is not 0; W and Z are independently selected --CH.dbd.C(CN)-- and --C(CN).dbd.CH--; X and Y are independently selected from --CHCN-- and --C(CN).sub.2 --; w, x, y and z are 0 or 1, provided that w and z are 0 if x and/or y are 1, and further provided that at least one of w, x, y and z is 1.

REFERENCES:
patent: 4622163 (1986-11-01), Huynh-Ba et al.
patent: 5002694 (1991-03-01), Wachtler et al.
patent: 5133896 (1992-07-01), Coates et al.
patent: 5173211 (1992-12-01), Yamashita et al.
patent: 5183586 (1993-02-01), Terada et al.
patent: 5186858 (1993-02-01), Terada et al.
patent: 5230830 (1993-07-01), Coates et al.
patent: 5232625 (1993-08-01), Gray et al.
patent: 5252252 (1993-10-01), Huynh-Ba et al.
patent: 5364559 (1994-11-01), Shinjo et al.

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