Materials for inducing alignment of liquid crystals and liquid c

Details Materials for inducing alignment of liquid crystals and liquid c Materials for inducing alignment of liquid crystals and liquid c

1998-05-18

1999-09-28

Wu, Shean C.

Compositions

Liquid crystal compositions

Containing nonchiral aligning agents

428 1, 528353, 528229, 528170, 528172, 528176, 528188, C09K 1956, C09K 1938, C08G 6926, C08G 7310

Patent

active

059582928

ABSTRACT:
A polyamic acid derived from an amine component comprising a 2-cyano-1,4-phenylene diamine and a family of diaryl ketones is claimed. The polyamic acids are useful in formation of polyimides, also claimed, and for the optical alignment of liquid crystals and the manufacture of liquid crystal optical elements, also claimed.

REFERENCES:
patent: 5731405 (1998-03-01), Gibbons et al.
patent: 5807498 (1998-09-01), Gibbons et al.
patent: 5817743 (1998-10-01), Gibbons et al.

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