Liquid crystalline diketones

Details Liquid crystalline diketones Liquid crystalline diketones

1981-07-16

1983-05-03

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing pleochroic dye

2522995, 25229963, 25229966, 350350R, G02F 113, C09K 334

Patent

active

043820123

ABSTRACT:
Diketones of the formula ##STR1## wherein R.sub.1 is alkyl, perfluoroalkyl or alkoxy, each of 1-18 carbon atoms; R.sub.2 is alkyl or perfluoroalkyl, each of 1-12 carbon atoms; and X is 1,4-trans-cyclohexylene, 1,4-phenylene or 4,4'-cyclohexylphenyl are liquid crystalline compounds.

REFERENCES:
patent: 3947375 (1976-03-01), Grat et al.
patent: 3983049 (1976-09-01), Aftergut et al.
patent: 4011173 (1977-03-01), Steinstrasser
patent: 4130502 (1978-12-01), Eidenschink et al.
patent: 4154697 (1979-05-01), Eidenschink et al.
patent: 4229315 (1980-10-01), Krause et al.
patent: 4293193 (1981-10-01), Labes et al.
patent: 4297515 (1981-10-01), Eidenschink et al.
patent: 4330426 (1982-05-01), Eidenschink et al.

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