Nematic liquid crystalline compounds

Details Nematic liquid crystalline compounds Nematic liquid crystalline compounds

1983-06-27

1984-09-18

Gron, Teddy S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

2522996, 25229963, 25229964, 25229965, 350350R, 350350S, 560 61, 560 72, 560 73, 560105, 560107, 560108, C07C 6990, C07C 6975, C09K 334, G02F 113

Patent

active

044725922

ABSTRACT:
A nematic liquid crytalline compound selected from the group consisting of compounds represented by the general formula ##STR1## compounds represented by the general formula ##STR2## compounds represented by the general formula ##STR3## and compounds represented by the general formula ##STR4## wherein R and R', independently from each other, represent a linear alkyl group having 1 to 7 carbon atoms, and each cyclohexane ring is arranged in a trans(equatorial-equatorial) form. These compounds have higher nematic phaseisotropic liquid phase transition temperatures than conventional liquid crystalline compounds.

REFERENCES:
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patent: 4387039 (1983-06-01), Sugimori et al.
patent: 4393258 (1983-07-01), Sato et al.
patent: 4400293 (1983-08-01), Romer et al.
Heppke, G. et al., Mol. Cryst. Liq. Cryst., vol. 98, pp. 309-319 (1983).

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