Process for the production of a random copolymer containing repe

Details Process for the production of a random copolymer containing repe Process for the production of a random copolymer containing repe

1986-05-27

1987-07-14

Phynes, Lucille M.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

526 65, 526 66, 528125, 528126, 528128, 528173, 528179, 528183, 528188, 528351, 528352, 528353, C08G 7310

Patent

active

046803734

ABSTRACT:
The present invention provides a process for the production of random copolymers containing repeating polyimide units and repeating polyetherimide units. The process is a reverse addition process and utilizes at least two dianhydrides of varying reactivity.

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patent: 3875115 (1975-04-01), Heath et al.
patent: 3968083 (1976-07-01), Quinn
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patent: 4421907 (1983-12-01), Schmidt et al.
patent: 4443591 (1984-04-01), Schmidt et al.
patent: 4443592 (1984-04-01), Schmidt et al.
patent: 4504650 (1985-03-01), Cooper

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