Thermosetting composition from maleimide, olefinic monomer and u

Details Thermosetting composition from maleimide, olefinic monomer and u Thermosetting composition from maleimide, olefinic monomer and u

1989-03-01

1991-01-08

Carrillo, Ana L.

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

Synthetic resins

Ethylenically unsaturated reactant admixed with either...

525 38, C08G 6352

Patent

active

049836692

ABSTRACT:
Thermosetting compositions comprise, (a) about 10% to about 60% of a polymerizable olefinic monomer such as styrene or vinyl toluene (b) from about 1 to about 40% of a maleimide of the formula: ##STR1## where R.sup.1 and R.sup.2 are independently selected from hydrogen or C.sub.1-3 alkyl groups, and in which the phenyl group may be substituted with aliphatic, alicyclic, and aromatic groups and up to three halogen or hydroxyl groups, and (c) about 5% to about 89% unsaturated polyester.
The compositions are useful for their electrical and heat resistant properties as molding compositions, for the impregnation of electrical coils and for encasing electrical components.

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