Phenylacetylene compound and liquid crystal composition comprising the same
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United States of America Patent
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Nov 21, 2000
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Feb 25, 1999
filing date -
Feb 25, 1998
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Provide is a novel phenylacetylene compound (1) which has a large anisotropy of refractive index, tends to be mixed with other liquid crystals, and is more advantageous in stability to light, a liquid crystal composition and a liquid crystal element usable for an optical shutter, a display element, ##STR1## A.sup.1 to A.sup.12 each independently represent a hydrogen atom, a fluorine atom, or an alkyl group having 1 to 10 carbon atoms, and at least one is an alkyl group.
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