Liquid crystal composition

Details Liquid crystal composition Liquid crystal composition

1978-07-11

1980-09-16

Gron, Teddy S.

Compositions

Liquid crystal compositions

252408, 350350R, C09K 334, G02F 113

Patent

active

042228875

ABSTRACT:
A liquid crystal composition comprising a mixture of at least one kind of liquid crystal substance represented by the following general formula (1) and at least one kind of compound selected from the groups consisting of the compounds represented by the following general formulas (2) to (8): ##STR1## wherein R.sub.1 and R.sub.2 are CN group or selected from C.sub.n H.sub.2n+1, C.sub.n H.sub.2n+1 O and C.sub.n H.sub.2n+1 COO groups where n is an integer of from 1 to 10, and both R.sub.1 and R.sub.2 are not CN group simultaneously; ##STR2## wherein R.sub.3 and R.sub.4 are CN group, or selected from C.sub.n H.sub.2n+1, C.sub.n H.sub.2n+1 O, C.sub.n H.sub.2n+1 COO and C.sub.n H.sub.2n+1 OCOO groups where n is an integer of from 1 to 10, and both R.sub.3 and R.sub.4 are not CN group simultaneously; R.sub.5 is selected from the above-described groups, except for CN group; and R.sub.6 is selected from --COO--, --C.sub.2 H.sub.4 --, --O--CH.sub.2 -- and --C.sub.2 H.sub.2 --.

REFERENCES:
patent: 3925238 (1975-12-01), Gavrilovic
patent: 4011173 (1977-03-01), Steinstrasser
patent: 4017416 (1977-04-01), Inukai et al.
patent: 4020002 (1977-04-01), Oh
patent: 4029595 (1977-06-01), Ross et al.
patent: 4035056 (1977-07-01), Coates et al.
patent: 4053431 (1977-10-01), Scherrer et al.
patent: 4058477 (1977-11-01), Boller et al.
patent: 4058478 (1977-11-01), Boller et al.
patent: 4065489 (1977-12-01), Steinstrasser
patent: 4083797 (1978-04-01), Oh
Karamysheva, L. A., et al., Mol. Cryst. Liq. Cryst., vol. 37, pp. 29-34 (1976).

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