Pyrimidine derivative and liquid crystal composition contain the

Details Pyrimidine derivative and liquid crystal composition contain the Pyrimidine derivative and liquid crystal composition contain the

1991-01-31

1992-12-01

Shah, Mukund J.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 544242, C09K 1934, C07D23955

Patent

active

051678586

ABSTRACT:
The present invention provides a novel pyrimidine derivative having a large .DELTA..epsilon. value and a low viscosity, and affording a liquid crystal composition having a high clearing point and a low threshold voltage value without raising its viscosity when the derivative is mixed with other liquid crystal compositions or liquid crystal compound. The pyrimidine derivative is a 5-[2'-(trans-4"-alkylcyclohexyl)ethyl]-2-(3,4-difluorophenyl)pyrimidine expressed by the formula ##STR1## wherein R represents a linear alkyl group having 1 to 10 carbon atoms.

REFERENCES:
patent: 4640795 (1987-02-01), Ogawa et al.
patent: 4752414 (1988-06-01), Eidenschink et al.
patent: 4797228 (1989-01-01), Goto et al.
patent: 5032313 (1991-07-01), Goto et al.

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