Compositions – Liquid crystal compositions – Containing pleochroic dye
Patent
1983-06-29
1986-05-13
Gron, Teddy S.
Compositions
Liquid crystal compositions
Containing pleochroic dye
350349, 534577, C09K 334, G02F 113
Patent
active
045885176
ABSTRACT:
The description is concerned with a liquid crystal composition of the guest-host type which contains a pleochroic dye dissolved therein. The dye molecule has an end group or end groups in the molecule represented by the general formula: ##STR1## where Ro designates a straight chain of alkyl group, in which methylene group not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfer atom; R1 designates an alkyl group having a chain length different from that of the alkyl group of Ro or a group ##STR2## in R1 a methylene group not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfur atom, and R2 designates hydrogen atom, alkyl group, alkoxy group, cycloalkyl group or dialkylamino group.
REFERENCES:
patent: 4122027 (1978-10-01), Cole, Jr. et al.
patent: 4128496 (1978-12-01), Cole, Jr. et al.
patent: 4128497 (1978-12-01), Cole, Jr. et al.
patent: 4137193 (1979-01-01), Osman et al.
patent: 4145114 (1979-03-01), Coates et al.
patent: 4184750 (1980-01-01), Bloom et al.
patent: 4288147 (1981-09-01), Koch
patent: 4324455 (1982-04-01), Imahori et al.
patent: 4348298 (1982-09-01), Zascke et al.
patent: 4350603 (1982-09-01), Aftergut et al.
patent: 4359398 (1982-11-01), Cole, Jr. et al.
patent: 4363743 (1982-12-01), Moeller et al.
patent: 4378302 (1983-03-01), Aftergut et al.
patent: 4394070 (1983-07-01), Brown et al.
patent: 4395350 (1983-07-01), Peller et al.
patent: 4401369 (1983-08-01), Jones
patent: 4411812 (1983-10-01), Aftergut et al.
patent: 4426312 (1984-01-01), Claussen
patent: 4477368 (1984-10-01), Yamanashi et al.
patent: 4505549 (1985-03-01), Shimidzu et al.
patent: 4519935 (1985-05-01), Claussen
Seki, H., et al., Jpn. J. Appl. Phys., vol. 21, No. 1, (Jan. 1982).
Cox, R. J., Mol. Cryst. Liq. Cryst., vol. 55, pp. 1-32, (1979).
Cognard, J., et al., Mol. Cryst. Liq. Cryst., vol. 68, pp. 207-229, (1981).
Jones, F., et al., Mol. Cryst. Liq. Cryst., vol. 60, pp. 99-110, (1980).
Imazeki Shuji
Iwanami Junko
Kaneko Masaharu
Mukoh Akio
Sato Mikio
Gron Teddy S.
Hitachi , Ltd.
Mitsubishi Chemical Industries Ltd.
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