Silacyclohexane compounds, preparation thereof, liquid crystal c

Details Silacyclohexane compounds, preparation thereof, liquid crystal c Silacyclohexane compounds, preparation thereof, liquid crystal c

1996-03-15

1999-12-21

Wu, Shean C.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229963, 556406, C09K 1934, C09K 1930, C07F 708

Patent

active

060044780

ABSTRACT:
A silacyclohexane compound of the formulas (I) ##STR1## wherein R represents an organic residue, ##STR2## represents an unsubstituted or substituted silicon-containing cyclohexylene group or a 1,4-cyclohexylene group, ##STR3## represents an unsubstituted or substituted phenylene, an unsubstituted or substituted silicon-containing cyclohexylene group or trans-4-sila-1,4-cyclohexylene group, or a 1,4-cyclohexylene group provided that at least one of these residues represents a silicon-containing cyclohexylene group, j, k and l are, respectively, 0 or 1, L.sub.1 and L.sub.2, respectively, represent H or F, m and n are, respectively, 0, 1 or 2 provided that m+n=2, 3 or 4, and X represents H, F or Cl. A liquid crystal composition comprising the silacyclohexane compound of the above formula is also described, along with a liquid crystal device comprising the composition.

REFERENCES:
patent: 5496501 (1996-03-01), Shimizu et al.
patent: 5498737 (1996-03-01), Ogihara et al.
patent: 5523440 (1996-06-01), Nakashima et al.
patent: 5527490 (1996-06-01), Kinsho et al.
patent: 5582764 (1996-12-01), Nakashima et al.
patent: 5659059 (1997-08-01), Ogihara et al.

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