Liquid crystal optical element

Details Liquid crystal optical element Liquid crystal optical element

1988-01-07

1990-01-16

Gron, Teddy S.

Compositions

Liquid crystal compositions

2522995, 25229962, 25229966, 350331R, 350347E, C09K 1952

Patent

active

048941808

ABSTRACT:
A liquid crystal optical element comprising a polymeric liquid crystal composition is disclosed, wherein the composition contains at least one compound selected from adamantane, an adamantane derivative, terphenyl, and a terphenyl derivative in an amount of from 0.01 to 15% by weight based on a polymeric liquid crystal. The optical element exhibits uniform vertical orientation.

REFERENCES:
patent: 4059340 (1977-10-01), Kahn
patent: 4076646 (1978-02-01), Nakano
patent: 4469408 (1984-09-01), Kruger
Shibaev, V.; Plate, N.; Thermotropic Liquid-Crystalline Polymers with Mesogenic Side Groups in Advances in Polymer Science, 60/61, M. Gordon, Ed., Springer Verlag, Berlin, 1984, pp. 173-252.

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