Substituted aromatic polyamides as orientation layers for liquid

Details Substituted aromatic polyamides as orientation layers for liquid Substituted aromatic polyamides as orientation layers for liquid

1991-12-17

1993-03-23

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528173, 528183, 528185, 528193, 528208, 528220, 528229, 528310, 528331, 528336, 528338, 528339, 528341, 528344, 528347, 528348, 528349, 528350, 428 1, 4284744, C08G 7500, C08G 6908, C08G 6912, C08G 6926

Patent

active

051965011

ABSTRACT:
Preparation of specially substituted aromatic polyamides containing structural units of the formula I mentioned and copolyamides containing at least 10 mol % of structural units of the formula I and structural units of the formula II mentioned and their use as orientation layer in liquid crystal display elements and/or liquid crystal switching elements.

REFERENCES:
patent: 3049518 (1962-08-01), Stephens
patent: 4221903 (1980-09-01), Elfert et al.
patent: 4539393 (1985-09-01), Tamura et al.
patent: 4946934 (1990-08-01), Fenoglio et al.
patent: 4980504 (1990-12-01), De Jonge et al.

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