Polyimides

Details Polyimides Polyimides

1978-08-21

1980-12-23

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

427373, 521 99, 521185, 521918, 528183, 528229, 528352, 528353, C08J 902

Patent

active

042411939

ABSTRACT:
Polyimide foams derived from mixtures of aromatic diamines and partial esters of a benzophenonetetracarboxylic acid. The precursors are converted into polyimide foams by the application of heat; and the foams are then compressed, yielding dense, rigid, and structurally strong, intumescent materials.

REFERENCES:
patent: 3726834 (1973-04-01), Acle, Jr.
patent: 3793281 (1974-02-01), Acle, Jr.
patent: 3966652 (1976-06-01), Gagliani et al.

Affiliated with

Also associated with

Rating

Polyimides 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyimides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2243729