Liquid-crystalline organosiloxanes containing chiral dianhydrohe

Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...

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25229962, 549214, C09K 1934, C09K 1932, C07D30500

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active

057888809

ABSTRACT:
The liquid-crystalline organosiloxanes which contain dianhydrohexitol derivatives as chiral groups can be used in optical elements, for decorative purposes and as polarizing colored filters, in particular notch filters.

REFERENCES:
patent: 4996330 (1991-02-01), Scherowsky et al.
patent: 5211877 (1993-05-01), Andrejewski et al.
patent: 5502206 (1996-03-01), Zahn et al.
H. Finkelmann, H. Ringsdorf et al., Macromol. Chem. 179,829-832 (1978) "Synthesis of cholesteric Liquid Crystalline Polymers".
W. Noll: Chemistry and Technology of Silicones Academic Press, Orlando, Fla., 1968, pp. 191-239 "Preparation of Polyorgano Siloxanes".

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