Polyimide resins from bis-imide, monomer having two methylene gr

Details Polyimide resins from bis-imide, monomer having two methylene gr Polyimide resins from bis-imide, monomer having two methylene gr

1989-02-06

1991-03-12

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528170, 528229, 528246, C08G 7312

Patent

active

049994190

ABSTRACT:
Polyimide addition copolymers of improved physical properties and thermal stability are prepared by reacting ethylenically unsaturated bis-imides with compounds having two methylene groups activated by adjacent carbonyl groups. The copolymers may be made in the presence of catalytic amounts of amines or with greater amounts of polyamines. The polymers are useful in producing molding powders, prepregs, laminates, circuit boards, encapsulants and metal clad shapes.

REFERENCES:
patent: 4822870 (1989-04-01), Restaino

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