Compositions – Liquid crystal compositions
Patent
1975-08-18
1977-11-15
Padgett, Benjamin R.
Compositions
Liquid crystal compositions
252408, 350150, 350160LC, C09K 334, G02F 113
Patent
active
040584763
ABSTRACT:
Liquid crystal substances or compounds of the formula ##STR1## wherein X is ##STR2## and R is straight-chain alkyl, straight-chain alkoxy, straight-chain alkanoyloxy or p-alkyloxycarbonyloxy,
As well as compositions and electro-optical apparatuses containing them, are described.
REFERENCES:
patent: 3499702 (1970-03-01), Goldmacher et al.
patent: 3731986 (1973-05-01), Fergason
patent: 3795436 (1974-03-01), Boller et al.
patent: 3796479 (1974-03-01), Helfrich et al.
patent: 3815972 (1974-06-01), Hsieh
patent: 3881806 (1975-05-01), Suzuki
Boller Arthur
Scherrer Hanspeter
Gron T. S.
Hoffmann-La Roche Inc.
Isgro William G.
Leon Bernard S.
Padgett Benjamin R.
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