Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1997-05-20
1999-07-27
Hampton-Hightower, P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528125, 528128, 528170, 528171, 528172, 528173, 528174, 528179, 528183, 528185, 528188, 528220, 528229, 528350, 359 44, 359 90, 350341, 350345, 350346, 350349, 350350R, 350350S, 350351, C08G 7310, C08G 6926, G02F 113
Patent
active
059292016
ABSTRACT:
The present invention relates to amine compositions and the preparation of polyimides. The polyimides can be used for inducing alignment of a liquid crystal medium with polarized light and liquid crystal display elements.
REFERENCES:
patent: 4974941 (1990-12-01), Gibbons et al.
patent: 5032009 (1991-07-01), Gibbons et al.
Gibbons Wayne M.
Shannon Paul J.
Sun Shao-Tang
Elsicon Inc.
Hampton-Hightower P.
Huntley Donald W.
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