Lactone compound and composition comprising the same

Details Lactone compound and composition comprising the same Lactone compound and composition comprising the same

1991-11-27

1993-10-26

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

359103, 25229901, C09K 1934, G02F 113

Patent

active

052563308

ABSTRACT:
A novel lactone compound exhibiting a larger spontaneous polarization value when added to ferroelectric liquid crystal compositions as a basic substance, than those of so far known lactone compounds, and yet having a relatively low viscosity, and a liquid crystal composition comprising the compound, and further a liquid crystal element using the same are provided, the lactone compound being expressed by the formula ##STR1## wherein R.sup.1 is a linear or branched alkyl group or alkoxy group of 1-15C, R.sup.2 is a linear or branched alkyl group of 1-16C, --A-- is single bond, 1,4-phenylene group or 1,4-cyclohexylene group and * is an asymmetric carbon atom.

REFERENCES:
patent: 4909957 (1990-03-01), Sakaguchi et al.
patent: 4973425 (1990-11-01), Kazuhiko et al.
patent: 5026506 (1991-06-01), Koden et al.
patent: 5061398 (1991-10-01), Takehara et al.

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