Polyimides prepared from perfluoroisopropylidene diamine

Details Polyimides prepared from perfluoroisopropylidene diamine Polyimides prepared from perfluoroisopropylidene diamine

1976-07-19

1978-09-05

Lee, Lester L.

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

Synthetic resins

From ketone or ketene reactant

260571, 528337, 528341, 528344, 528345, 528346, 528348, 528332, 528350, 528353, C08G 7310

Patent

active

041119061

ABSTRACT:
This invention relates to a novel aromatic diamine and more particularly to the use of said diamine for the preparation of thermally stable high-molecular weight polymers including, for example, polyamides, polyamideimides, polyimides, and the like. This diamine is obtained by reacting a stoichometric amount of a disodium salt of 2,2-bis(4-hydroxyphenyl) hexafluoropropane with 4-chloronitrobenzene to obtain an intermediate, 2,2-bis[4-(4-nitrophenoxy)phenyl] hexafluoropropane, which is reduced to the corresponding 2,2-bis[4-(4-aminophenoxy)phenyl] hexafluoropropane.

REFERENCES:
patent: 3649601 (1972-03-01), Critchley et al.
patent: 3925312 (1975-12-01), Fletcher et al.
patent: 3944575 (1976-03-01), Villaescusa et al.

Affiliated with

Also associated with

Rating

Polyimides prepared from perfluoroisopropylidene diamine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyimides prepared from perfluoroisopropylidene diamine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyimides prepared from perfluoroisopropylidene diamine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2094990