Polyimide resin from bis-imide and monomer having two methylene

Details Polyimide resin from bis-imide and monomer having two methylene Polyimide resin from bis-imide and monomer having two methylene

1986-07-03

1989-04-18

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

4284111, 4284735, 428500, 526262, 528170, 528228, 528246, C08G 6926

Patent

active

048228702

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: 4275185 (1981-06-01), Lu

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