Method of making foamed copolyimides and product obtained theref

Details Method of making foamed copolyimides and product obtained theref Method of making foamed copolyimides and product obtained theref

1979-03-29

1980-02-12

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 334R, 528128, 528188, 528229, 528352, 528353, C08J 902

Patent

active

RE0302139

ABSTRACT:
Copolyimide foams made from lower alkyl esters of tetracarboxylic acids and two or more diamines. Precursors for such copolyimides. Processes for making the precursors and for converting them to copolyimide foams.

REFERENCES:
patent: 3483144 (1969-12-01), Lavin et al.
patent: 3705118 (1972-12-01), Abolafia
patent: 3726834 (1973-04-01), Acle, Jr.
patent: 3793281 (1974-02-01), Acle, Jr.

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