Liquid-crystalline tetrahydroquinazolines

Details Liquid-crystalline tetrahydroquinazolines Liquid-crystalline tetrahydroquinazolines

1980-12-19

1983-09-06

Daus, Donald G.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

350350R, 544283, 25229962, C09K 334, G02F 113, C07D23974

Patent

active

044028490

ABSTRACT:
Liquid-crystalline tetrahydroquinazolines of the formula ##STR1## wherein R.sub.1 is alkyl, alkoxy, alkanoyloxy or alkoxycarbonyloxy of up to 8 carbon atoms in each case, CN, CF.sub.3, halogen or NO.sub.2 ; and R.sub.2 is alkyl of up to 10 carbon atoms are valuable components for liquid crystalline dielectrics.

REFERENCES:
patent: 3574210 (1971-04-01), Breuer et al.
patent: 3637693 (1972-01-01), Otterstedt et al.
patent: 3997536 (1976-12-01), Boller et al.
patent: 4062798 (1977-12-01), Boller et al.
patent: 4181625 (1980-01-01), Eidenschink et al.
patent: 4273929 (1981-06-01), Boller et al.

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