Liquid crystal composition and liquid crystal element...

Details Liquid crystal composition and liquid crystal element... Liquid crystal composition and liquid crystal element...

2005-03-23

2008-07-01

Wu, Shean C (Department: 1795)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C252S299010, C252S299100, C252S299500

Reexamination Certificate

active

07393568

ABSTRACT:
A novel liquid crystal composition and a novel liquid crystal element are disclosed. They comprise at least one compound represented by a formula (1), wherein R1to R7respectively represent a hydrogen atom or a substituent, provided that at least one of R1, R2, R5and R6represents a substituted or non-substituted alkyl group, cycloalkyl group, aryl group or heteroaryl group; S represents a sulfur atom, B1and B2respectively represent a substituted or non-substituted arylene group, heteroarylene group or divalent cyclic aliphatic hydrocarbon group; Q1represents a divalent linking group, C1represents a substituted or non-substituted alkyl group, cycloalkyl group, alkoxy group, alkoxycarbonyl group, acyl group or acyloxy group; p, q and r respectively represent an integer from 0 to 5 and n is an integer from 1 to 3, provided that (p+r)×n is from 3 to 10

REFERENCES:
patent: 5006276 (1991-04-01), Kaneko et al.
patent: 7220466 (2007-05-01), Katoh et al.
patent: 7316829 (2008-01-01), Kato et al.
patent: 2005/0173673 (2005-08-01), Kitagawa
patent: 2006/0060822 (2006-03-01), Takaku et al.
patent: 103095 (1984-03-01), None
patent: 02178390 (1990-07-01), None
patent: 2001-234465 (2001-08-01), None
patent: WO 03/014259 (2003-02-01), None
English abstract for EP 103095 by Derwent.
English abstract for JP 02-178390 by Derwent.

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