Naphthyloxybenzoic and naphthloxynaphthoic acid compounds
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United States of America Patent
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Dec 8, 1992
Grant Date -
N/A
app pub date -
Dec 16, 1991
filing date -
Dec 14, 1990
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Expired
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Abstract
Novel (naphthyloxy)benzoic/naphthoic acid compounds, polymerizable into thermotropic polymers have the formulae: ##STR1## in which R is hydrogen, a straight or branched chain aliphatic or cycloaliphatic hydrocarbon radical having from 1 to 4 carbon atoms or a radical ##STR2## wherein R' is a methyl or ethyl radical, or salt thereof.
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