Expandable polyetherimide compositions and foamed materials obta

Details Expandable polyetherimide compositions and foamed materials obta Expandable polyetherimide compositions and foamed materials obta

1985-11-21

1986-12-16

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 88, 521 98, 521154, 521180, 521183, 521184, 521185, 521189, C08J 914

Patent

active

046297456

ABSTRACT:
An expandable polyetherimide composition comprising (A) polyetherimide and (B) a blowing agent containing in the said agent at least 10% by weight of a volatile organic foaming component having a solubility parameter [.delta..sub.c ] satisfying the following equation

REFERENCES:
patent: 4361453 (1982-11-01), Gagliani et al.
patent: 4367296 (1983-01-01), Gagliani et al.
patent: 4535100 (1985-08-01), Krutchen et al.
patent: 4579878 (1986-04-01), Krutchen et al.

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