Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Reexamination Certificate
2005-09-06
2005-09-06
Huff, Mark F. (Department: 1756)
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
C252S299610, C252S299010, C568S303000, C568S367000
Reexamination Certificate
active
06939479
ABSTRACT:
Described herein are compounds of formula Iwherein M1, M2and M3have the meanings recited in the disclosure, liquid crystalline mixtures and polymers containing them, and the use of the compounds of formula I, the liquid crystalline mixtures and the polymers containing them in optical and electrooptical devices like liquid crystal displays or projection systems, patterned films and optical elements like polarizers, retardation films, compensators, color filters, holographic elements or polarization beam splitters, for photoswitching, in anisotropic membranes for the permeation of gases or fluids, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic or pharmaceutical compositions, UV absorbers and sunscreens, diagnostics or liquid crystal pigments, for decorative and security applications, in nonlinear optics, optical information storage or as dopants.
REFERENCES:
patent: 5250735 (1993-10-01), Wong et al.
patent: 5886232 (1999-03-01), Landscheidt et al.
patent: 6215028 (2001-04-01), Oster et al.
patent: 6448220 (2002-09-01), Swift
patent: 6541672 (2003-04-01), Sardjiman et al.
patent: 44 05 316 (1995-08-01), None
patent: 01-312550 (1989-12-01), None
Derwent English language abstracts supplied for both references.
Farrand Louise Diane
Hassall Ian Victor Edward
Parri Owain Llyr
Vaughan-Spickers Julian Frederick Samuel
Worrall Christopher
Huff Mark F.
Merck Patent GmbH
Millen White Zelano & Branigan P.C.
Sadula Jennifer R.
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