Polarizer films comprising aromatic liquid crystalline polymers

Compositions – Light transmission modifying compositions – Producing polarized light

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

2522991, F21V 914, C09K 1900

Patent

active

057469490

ABSTRACT:
This invention provides novel liquid crystalline polymers which comprise, in the repeat units of their main chains, residues of suitable dichroic dyes. The polymers yield polarizer films with superior polarizing efficiency, transmittance, dichroic ratio, and thermal and humidity stability. The invention further discloses suitable processes to prepare such polymers and polarizer films therefrom.

REFERENCES:
patent: 4631328 (1986-12-01), Ringsdorf et al.
patent: 4840640 (1989-06-01), Miura et al.
patent: 5389285 (1995-02-01), Shannon et al.
patent: 5543267 (1996-08-01), Stumpe et al.
patent: 5672296 (1997-09-01), Shen et al.
Database WPI, Week 8838, Derwent Publications, Ltd., London, GB; AN 88-267839 & JP,A,63 195 602 (Mitsubishi Chem Ind), Oct., 1988.
Database WPI, Week 8741, Derwent Publications Ltd., Londong, GB; AN 87-289507 & JP,A,62 204 202 (Mitsubishi Chem Ind), Oct., 1987.
Patent Abstracts of Japan, vol. 011, No. 370 (P-642), 3 Dec. 1987 & JP,A,62 141503 (Toray Ind. Inc; Others:01), 25 Jun. 1987 & Database WPI, Week 8731, Derwent Publications Ltd., London, GB; An 87-216446 & JP,A,62 141 503 (Toray Ind Inc., Sumitomo), Aug. 1987.
Patent Abstracts of Japan, vol. 011, No. 398 (C-466), 25 Dec. 1987 & JP,A,62 158758 (Sumitomo Chem Co), 14 Jul. 1987 & Database WPI, Week 8733, Derwent Publications Ltd. London, GB; AN 87-233055 & JP,A,62 158 758 (Sumitomo Chem), Sep., 1987.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Polarizer films comprising aromatic liquid crystalline polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polarizer films comprising aromatic liquid crystalline polymers , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarizer films comprising aromatic liquid crystalline polymers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-50554

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.