Liquid crystals having pleochroic dyes

Details Liquid crystals having pleochroic dyes Liquid crystals having pleochroic dyes

1982-09-27

1983-09-06

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing pleochroic dye

260376, 260377, 350349, C09K 334, G02F 113

Patent

active

044028547

ABSTRACT:
Anthraquinone dyes of the general formula: ##STR1## wherein R.sup.1, R.sup.3, R.sup.4 and R.sup.6 are selected from the group consisting of H, OH, OCH.sub.3, NO.sub.2, NH.sub.2 and NHCH.sub.3 ; R.sup.2 and R.sup.5 are selected from the group consisting of:

REFERENCES:
patent: 3147284 (1964-09-01), Rhyner
patent: 3642837 (1972-02-01), Greenhalch et al.
patent: 3960751 (1976-07-01), Moriyama et al.
patent: 4118498 (1978-10-01), Lang, Jr. et al.
patent: 4154746 (1979-05-01), Huffman
patent: 4232949 (1980-09-01), Huffman
patent: 4232950 (1980-09-01), Benham
patent: 4273929 (1981-06-01), Boller et al.
patent: 4299720 (1981-11-01), Osmam et al.
patent: 4304683 (1981-12-01), Morinaka et al.
patent: 4360447 (1982-11-01), Morinaka et al.
patent: 4363743 (1982-12-01), Moeller et al.
Saeva, F. D., Xerox Disclosure J., vol. 1, Nos. 9/10, pp. 61-62 (1976).
Cognard, Jr., et al., Mol. Cryst. Liq. Cryst., vol. 70, pp. 1-19 (1981).
Cox, Mol. Cryst. Liq. Cryst., vol. 55, pp. 1-32 (1979).
Heilmeier, et al., Appl. Phys. Lett., vol. 13, No. 3, pp. 91-92 (1968).
Constant, J., et al., Electronics Letters, vol. 12, No. 20, pp. 514-515 (1976).
White, D. L., et al., J. Appl. Phys., vol. 45, No. 11, pp. 4718-4723 (1974).
Bloom, A., et al., IEEE Trans Ed., vol. ED-24, No. 7, pp. 823-826 (1977).

Affiliated with

Also associated with

Rating

Liquid crystals having pleochroic dyes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid crystals having pleochroic dyes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystals having pleochroic dyes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1591532