Polyamic acid, polyimide and liquid crystal aligning agent

Details Polyamic acid, polyimide and liquid crystal aligning agent Polyamic acid, polyimide and liquid crystal aligning agent

1997-01-31

1998-07-21

Hampton-Hightower, P.

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

Synthetic resins

From carboxylic acid or derivative thereof

528170, 528172, 528173, 528176, 528183, 528188, 528220, 528229, 528310, 528322, 528332, 528335, 528350, 428 1, 4284735, C08G 7310, C08G 7312, C08G 6926

Patent

active

057836566

ABSTRACT:
There are provided a polyamic acid obtainable by reacting a diamine compound of the formula (1) ##STR1## wherein R.sup.1 is an alkyl group having 1 to 12 carbon atoms, a haloalkyl group having 1 to 12 carbon atoms or a halogen atom, each of X and Y is independently a divalent linking group,
with a tetracarboxylic acid dianhydride; a polyimide obtainable by dehydrating and ring-closing the above polyamic acid; and a liquid crystal aligning agent containing the above polyamic acid and/or the above polyimide.

REFERENCES:
patent: 5276132 (1994-01-01), Nishikawa et al.
patent: 5298590 (1994-03-01), Isogai et al.
Patent Abstracts of Japan, vol. 17, No. 631, (P-1648), 22 Nov. 1993 & JP 05 203952 (Japan Synthetic Rubber Co., Ltd.), 13 Aug. 1993.
Patent Abstracts of Japan, vol. 18, No. 40, (C-1155), 21 Jan. 1994 & JP 05 263077 (Japan Synthetic Rubber Co., Ltd.), 12 Oct. 1993.
Patent Abstracts of Japan, vol. 16, No. 152, (C-0929), 15 Apr. 1992 & JP 04 007333 (Japan Carlit Co. Ltd.), 10 Jan. 1994.

Affiliated with

Also associated with

Rating

Polyamic acid, polyimide and liquid crystal aligning agent does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyamic acid, polyimide and liquid crystal aligning agent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyamic acid, polyimide and liquid crystal aligning agent will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1647804