Liquid crystalline compound, liquid crystalline composition...

Details Liquid crystalline compound, liquid crystalline composition... Liquid crystalline compound, liquid crystalline composition...

2007-01-30

2007-01-30

Wu, Shean C (Department: 1756)

Compositions

Liquid crystal compositions

C252S299610, C252S299670, C252S299500, C544S224000, C544S242000, C544S298000, C544S335000, C546S339000, C560S008000, C560S056000, C560S075000, C560S085000

Reexamination Certificate

active

10892270

ABSTRACT:
To provide a liquid crystalline compound capable of exhibiting a biaxial liquid crystal phase, provide a trifunctional or greater functional polymerizable liquid crystalline compound having polymerizable groups, and also to provide a liquid crystalline composition and a retardation film which are using the liquid crystalline compound, a compound and a liquid crystalline compound each are represented by formula (I) defined in the specification; a liquid crystalline composition contains the compound; and a retardation film has an optically anisotropic layer formed from the compound.

REFERENCES:
patent: 6139771 (2000-10-01), Walba et al.
patent: 6569504 (2003-05-01), Walba et al.
patent: 2004/0142116 (2004-07-01), Nishikawa et al.
patent: 2001-233837 (2001-08-01), None
Wautelet et al., “Rigid Conjugated Polymers for Nonlinear Optics. 2. Synthesis and Characterization of Phenylene-Ethynylene Oligomers”, Marcomolecules, 1996, 29, 446-455.
Moggio et al., “Orientation of Polydiacetylene and Poly(phenylene ethynylene) Films by Epitaxy and Rubbing”, Marcomolecules, 2001, 34, 7091-7099.

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