Liquid crystal compounds, preparation thereof, and...

Details Liquid crystal compounds, preparation thereof, and... Liquid crystal compounds, preparation thereof, and...

2006-04-04

2006-04-04

Wu, Shean C. (Department: 1756)

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

C252S299620, C252S299630, C252S299660, C252S299670, C546S126000, C546S135000, C560S079000, C560S127000

Reexamination Certificate

active

07022259

ABSTRACT:
A liquid crystal compound with high helical twisting power, a method for preparing the same, and a liquid crystal composition containing the same. The liquid crystal compounds include cyclic group chain structures similar to the liquid crystal to serve as the core structure, and multi-ring structures of natural alcohol with optical activity, such as alcoholates of terpenol, borneol, cinchonidine, quinine, or derivatives thereof. As a result, the liquid crystal composition containing the liquid crystal compounds can filter out light of specific wavelengths from incident light due to optical activity and high helical twisting power thereof.

REFERENCES:
patent: 4784793 (1988-11-01), Coates et al.
patent: 5401436 (1995-03-01), Takano et al.
patent: 6217792 (2001-04-01), Parri et al.
patent: WO 01/96494 (2001-12-01), None
patent: WO 02/06195 (2002-01-01), None

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