Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1997-12-24
2000-02-29
Wu, Shean C.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
25229962, 25229963, 544303, 546346, 548215, 549324, 549380, 568634, 568649, 568669, 570128, 570130, 570131, 570132, C09K 1934, C09K 1932, C07C 2513, C07D23902, C07D31912, C07D26302
Patent
active
060305479
ABSTRACT:
Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion comprising (i) at least one chiral center, which can optionally be heteroatom-substituted; (ii) a terminal fluoroalkyl, fluoroether, perfluoroalkyl, or perfluoroether group; and (iii) an alkylene or fluoroalkylene group optionally containing at least one caternary ether oxygen atom; (b) a chiral or achiral terminal portion consisting of a hydrocarbon or hydrocarbon ether group, and, when chiral, comprising at least one chiral center, which can optionally be heteroatom-substituted; and (c) a central core connecting the terminal portions; the alkylene or fluoroalkylene group of the chiral fluorochemical terminal portion having at least 3 in-chain atoms and being located between the chiral center of the chiral fluorochemical terminal portion and the central core. The compounds have smectic mesophases or latent smectic mesophases and are useful, for example, in liquid crystal display devices.
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Hasegawa Masakazu
Keyes Michael P.
Radcliffe Marc D.
Savu Patricia M.
Snustad Daniel C.
3M Innovative Properties Company
Kokko Kent S.
Wu Shean C.
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