Nitro-substituted polyarylketones

Details Nitro-substituted polyarylketones Nitro-substituted polyarylketones

1990-09-04

1992-06-02

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

556436, 560 36, 562430, 562432, 562441, 564328, 568 25, 568306, 568316, 568323, C07C20538, C07C22306, C07C 4976, C07C 4561, C07F 704

Patent

active

051188392

ABSTRACT:
A process for preparing nitro substituted polyarylketones of the formula: ##STR1## is disclosed. The process involves the condensation of ##STR2## where R.sub.A is hydrogen, --COOH, or C.sup.1 to C.sub.12 linear or branched alkyl, Y and Y' are the same or different and are a chemical bond ##STR3## or --Si(CH.sub.3).sub.2 -- and m is 0 or 1 and X is halo. These nitro groups of these compounds can be reduced to provide the corresponding amines, which are useful for the preparation of thermally stable high melting polyimides.

REFERENCES:
patent: 4413144 (1983-11-01), Tappe et al.
patent: 4918236 (1990-04-01), Knudsen et al.

Affiliated with

Also associated with

Rating

Nitro-substituted polyarylketones does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nitro-substituted polyarylketones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nitro-substituted polyarylketones will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2229987