Lyotropic liquid crystalline mixture, coating liquid, and...

Details Lyotropic liquid crystalline mixture, coating liquid, and... Lyotropic liquid crystalline mixture, coating liquid, and...

2008-07-08

2010-12-14

Visconti, Geraldina (Department: 1795)

Compositions

Liquid crystal compositions

C252S299640, C252S299680, C428S001100, C430S020000, C430S270100, C534S573000, C534S677000

Reexamination Certificate

active

07850868

ABSTRACT:
The lyotropic liquid crystalline mixture of the present invention comprises at least a first azo compound and a second azo compound in relation of constitutional isomers wherein the first azo compound and the second azo compound are the constitutional isomers different in a binding site of at least an azo group. The first azo compound is preferably an azo compound wherein the azo group is bonded to an ortho-position of a hydroxyl group of an aminonaphthol skeleton. The second azo compound is preferably an azo compound wherein the azo group is bonded to an ortho-position of an amino group of an aminonaphthol skeleton.The lyotropic liquid crystalline mixture of the present invention may be utilized as a forming material of an optical anisotropic film, for example.

REFERENCES:
patent: 5609796 (1997-03-01), Yamamoto et al.
patent: 2009/0269513 (2009-10-01), Nishiyama et al.
patent: 1867684 (2007-12-01), None
patent: 62-265356 (1987-11-01), None
patent: 7-159615 (1995-06-01), None
patent: 2007-126628 (2007-05-01), None
International Search Report of PCT/JP2008/062308, Mailing Date of Sep. 30, 2008.

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