Family of liquid crystals of the disubstitute diester type

Details Family of liquid crystals of the disubstitute diester type Family of liquid crystals of the disubstitute diester type

1978-08-14

1980-10-28

Torrence, Dolph H.

Compositions

Liquid crystal compositions

260465D, 350350R, 560 65, C07C 6990, C07C12160, C09K 334

Patent

active

042305969

ABSTRACT:
A family of organic compounds having at least one mesomorphic phase of nematic type and, in respect of some compounds, one or more smetic phases. The liquid crystals according to the invention satisfy general formula: ##STR1## in which R.sub.1 is an alkyl or alkoxy group having n carbon atoms (n being an integer of 1 to 10) X designates the bromine or the cyano group, Y is a methyl group.

REFERENCES:
patent: 3915883 (1975-10-01), Van Meter et al.
patent: 3953491 (1976-04-01), Steinstrasser et al.
patent: 3971824 (1976-07-01), Van Meter et al.
patent: 4017416 (1977-04-01), Inukai et al.
patent: 4073742 (1978-02-01), Erdmann et al.
patent: 4110243 (1978-08-01), Abert-Mellah et al.
Dubois et al., Mol. Cryst. Liq. Cryst., vol. 42, p. 139 (1977).

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