2-cyano-4-halogenophenyl substituted-benzoates

Details 2-cyano-4-halogenophenyl substituted-benzoates 2-cyano-4-halogenophenyl substituted-benzoates

1985-01-17

1987-04-21

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonchiral additive having no specified mesophase

25229963, 25229964, 2522991, 558416, 350350R, 350349, 350346, C09K 1954, C09K 1930, C09K 1920, C07C12152

Patent

active

046595015

ABSTRACT:
Novel liquid crystal compounds, 2-cyano-4-halogenophenyl substituted-benzoates suitable as a component constituting a liquid crystal composition which exhibits a negative dielectric anisotropy, and a liquid crystal composition containing the same are provided, which benzoates are expressed by the formula ##STR1## wherein R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms; ##STR2## represents ##STR3## or ##STR4## X and Y each represents H or a halogen atom of F or Cl and at least one of X and Y is necessarily H; and Z represents a halogen atom of F, Cl or Br.

REFERENCES:
patent: 3915883 (1975-10-01), Van Meter et al.
patent: 3953491 (1976-04-01), Steinstrasser et al.
patent: 4147656 (1979-04-01), Aldrich et al.
patent: 4293434 (1981-10-01), Deutscher et al.
patent: 4368135 (1983-01-01), Osman
patent: 4400293 (1983-08-01), Romer et al.
patent: 4502974 (1985-03-01), Sugimori et al.

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