Uv-ray-dimerized high molecular compound, liquid crystal alignin

Details Uv-ray-dimerized high molecular compound, liquid crystal alignin Uv-ray-dimerized high molecular compound, liquid crystal alignin

1999-02-04

2000-07-18

Kelly, C. H.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528170, 528174, 528352, C08G 6926, C08G 6942, C08G 7300, C08G 7500

Patent

active

060909099

ABSTRACT:
Disclosed is an aligning film having good liquid crystal orientation, which can be obtained by irradiating polyimide comprising N-(2-(3,5-diaminobenzoyl)oxyethyl)-.alpha.-phenylmaleimide and 1,2,3,4-cyclobutanetetracarboxylic dihydride with polarized UV-rays without employing such methods as rubbing treatment and oblique deposition.

REFERENCES:
patent: 5206338 (1993-04-01), Barthelemy
patent: 5644016 (1997-07-01), Roschert et al.
patent: 5945503 (1999-08-01), Takuma et al.
"Surface-Induced Parallel Alignment of Liquid Crystals by Linearly Polymerized Photopolymers", M. Schadt et al., Jpn. J. Appl. Phys. vol. 31 (1992), Part 1, No. 7, Jul. 1992 pp. 2155-2164.

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