Novel hindered diamine/imido prepolymers

Details Novel hindered diamine/imido prepolymers Novel hindered diamine/imido prepolymers

1989-03-03

1990-11-27

Foelak, Morton

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

428413, 4284735, 528 98, 528107, 528109, 528112, 528113, 528159, 528162, 528163, 528321, 528322, C08G 804

Patent

active

049736493

ABSTRACT:
Novel thermosetting imido prepolymers having low melt viscosity, well adapted for the production, e.g., of preimpregnated shaped articles, are copolymerizates of at least one N,N'-bismaleimide; at least one hindered diprimary diamine, e.g., 4,4'-diamino-3,3',5,5'-tetraalkyl-diphenyl-methane or 1,3-diamino- or 1,4-diaminotrialkylbenzene; at least one comonomeric heterocycle, e.g., a vinylpyridine, N-vinyl-2-pyrrolidone, allyl isocyanurate, vinyltetrahydrofuran, and/or an imidazole compound; and at least one comonomeric (meth)acrylate.

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