Liquid crystal compounds

Details Liquid crystal compounds Liquid crystal compounds

C - Chemistry, Metallurgy

07

C

31/105, 260/558.

C07C 49/403 (2006.01) C07C 17/00 (2006.01) C07C 17/26 (2006.01) C07C 29/20 (2006.01) C07C 29/40 (2006.01) C07C 45/29 (2006.01) C09K 19/30 (2006.01)

Patent

CA 1106406

Abstract of the Disclosure Novel compounds, 4-alkyl-cyclohexenes having at the 1-position thereof p-cyanophenyl group or 4'-cyano-4- biphenylyl group. expressed by the general formula Image wherein R represents a straight alkyl group having 1-9 carbon atoms and n represents 1 or 2; methods for producing the same; and nematic liquid crystal (L.C.) compositions comprising at least one member selected from the group consisting of said compounds, are provided. Said compounds having a cyclohexene ring have a lower viscosity than conventional L.C. compounds, and have effectivenesses of short response time when applied to L.C. display apparatus; superior compatibility with other L.C. compounds to form convenient L.C. mixture; and no need of separating cis- and trans-forms in the midway step of the preparation as in the prior art.

315948

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