Optically active cyano-biphenyl compounds and liquid crystal...

Details Optically active cyano-biphenyl compounds and liquid crystal... Optically active cyano-biphenyl compounds and liquid crystal...

C - Chemistry, Metallurgy

07

F

31/105, 345/8, 2

C07F 3/02 (2006.01) B41M 5/28 (2006.01) C07C 17/00 (2006.01) C07C 17/12 (2006.01) C07C 17/18 (2006.01) C07C 49/813 (2006.01) C07C 51/15 (2006.01) C09K 19/12 (2006.01) G01K 11/16 (2006.01) G02F 1/137 (2006.01)

Patent

CA 1090372

ABSTRACT OF THE DISCLOSURE Liquid crystal compounds are disclosed having the formula Image where p is an integer having a value from 0 to 5 inclusive. These materials are optically active and cholesterogenic and may be used in an electro-optical display device either on their own or in admixture with nemotogenic materials having a formula Image where i has a value from 0 to 5 inclusive and j is 0 or 1. These last mentioned mixtures may be thermochromic and employed in a temperature sensing device.

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