Diamino compounds and methods for preparing them

Details Diamino compounds and methods for preparing them Diamino compounds and methods for preparing them

1995-10-02

1997-09-02

Kelly, C. H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

2522994, 564433, 564376, C07C21100, C09K 1956

Patent

active

056634404

ABSTRACT:
An object of the invention is to propose diamino compounds expressed by the following general formula (1) which are suitable to obtain a raw material, a polyimide resin, for a liquid crystal aligning film without any image sticking and with a high voltage holding ratio at from a low temperature to a high temperature as well as the preparation thereof: ##STR1##

REFERENCES:
Chem. Abs. 94:175723; Chem. Str. and glass transition temperature of polyarimide. 1981.
Abstract of bulletin of EP 575083-A1, Jun. 1992.

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