Compositions – Radioactive compositions – Nuclear reactor fuel
Patent
1982-10-01
1986-04-22
Gron, Teddy S.
Compositions
Radioactive compositions
Nuclear reactor fuel
25229961, 2522995, 25229963, 25229966, 350350S, 585 20, 585 25, C09K 334, G02F 113, C07C 126, C07C 503, C07C 1328, C07C 286
Patent
active
045838267
ABSTRACT:
Compounds of the formula ##STR1## wherein R.sup.1 signifies trans-4-alkylcyclohexyl, 4'-alkyl-4-biphenylyl, p-(trans-4-alkylcyclohexyl)phenyl, 2-(trans-4-alkylcyclohexyl)ethyl or p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl and R.sup.2 signifies trans-4-alkylcyclohexyl; or R.sup.1 signifies trans-4-alkylcyclohexyl and R.sup.2 signifies p-(trans-4-alkylcyclohexyl)phenyl, p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl or 4'-(trans-4-alkylcyclohexyl)-4-biphenylyl; or R.sup.1 signifies p-alkylphenyl and R.sup.2 signifies p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl, and the alkyl groups in the substituents R.sup.1 and R.sup.2 are straight-chain groups containing 1 to 7 carbon atoms, liquid crystalline mixtures which contain these compounds and their use for electro-optical purposes are described.
The novel compounds of formula I are especially valuable as components in liquid crystal mixtures and themselves have liquid crystalline properties.
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Petrzilka Martin
Schadt Martin
Gron Teddy S.
Hoffmann-La Roche Inc.
Johnston George W.
Leon Bernard S.
Saxe Jon S.
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