1-(4-alkylphenylethynyl)-4-(alkylphenylethynyl)-benzene

Details 1-(4-alkylphenylethynyl)-4-(alkylphenylethynyl)-benzene 1-(4-alkylphenylethynyl)-4-(alkylphenylethynyl)-benzene

1991-06-04

1993-10-05

Tucker, Philip

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

585 25, C09K 1906, C07C 1512

Patent

active

052502163

ABSTRACT:
A tolan derivative useful as a component of liquid crystal materials and being superior to conventional tolan derivatives in the characteristics of .DELTA.n and viscosity, and a liquid crystal composition containing the same are provided, which tolan derivative is expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group of 1 to 10 carbon atoms.

REFERENCES:
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patent: 4895672 (1990-01-01), Goto et al.
Chemical Abstracts 90(25):203162K, Photophysical Properties of Molecules Containing Triple Bonds, 1979.
Adomenas, P. et al., Advances in Liquid Crystal Research and Applications, vol. 2, 1981, pp. 1029-1038.
Stanley Wentworth, Polymer Preprints, vol. 15, No. 1, pp. 697-700, (1974).

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