Alkenylcyclohexane derivatives, liquid crystal composition and l

Details Alkenylcyclohexane derivatives, liquid crystal composition and l Alkenylcyclohexane derivatives, liquid crystal composition and l

1996-06-19

1998-07-07

Wu, Shean C.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 25229961, 25229967, 570127, 570130, 570131, C09K 1930, C09K 1952, C07C 1908

Patent

active

057763674

ABSTRACT:
A novel liquid crystalline compound having a low viscosity and a high elastic constant ratio and at the same time, a superior compatibility with other known liquid crystalline compounds, and a liquid crystal composition and a liquid crystal display element containing the novel compound, are provided.
The compound is an alkenylcyclohexane derivative expressed by the formula (1): ##STR1## wherein R.sup.1 and R.sup.2 represent a linear or branched alkyl group of 1 to 15 carbon atoms or alkenyl group of 2 to 15 carbon atoms; at least one of R.sup.1 and R.sup.2 represents an alkenyl group; in these groups, one or more non-adjacent CH.sub.2 groups may be replaced by oxygen atom, sulfur atom or --C.tbd.C-- group; ring A.sup.1, ring A.sup.2 and ring A.sup.3 each independently represent 1,4-cyclohexylene group wherein one or more CH.sub.2 groups on the ring may be replaced by oxygen atom or sulfur atom, or 1,4-phenylene group wherein one or more CH groups on the ring may be replaced by nitrogen atom; Z.sup.1 and Z.sup.2 each independently represent --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--, --OCH.sub.2 --, --CH.dbd.CH--, --C.tbd.C-- or single bond; Z.sup.3 represents --(CH.sub.2).sub.4 --, --CH.dbd.CH--(CH.sub.2).sub.2 --, --CH.sub.2 --CH.dbd.CH--CH.sub.2 -- or --(CH.sub.2).sub.2 --CH.dbd.CH--; and m, n and i each independently represent 0 or 1.

REFERENCES:
patent: 5468421 (1995-11-01), Matsui et al.

Affiliated with

Also associated with

Rating

Alkenylcyclohexane derivatives, liquid crystal composition and l does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alkenylcyclohexane derivatives, liquid crystal composition and l, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkenylcyclohexane derivatives, liquid crystal composition and l will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1201937