Process for miscible blends of imide containing polymers with po

Details Process for miscible blends of imide containing polymers with po Process for miscible blends of imide containing polymers with po

1990-07-09

1992-07-28

Carrillo, Ana L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525420, C08L 7908

Patent

active

051342022

ABSTRACT:
A method for the preparation of miscible blends comprising biphenyl-containing poly(aryl sulfones) and polyimides is disclosed. The process comprises adding the monomeric polycarboxylic acid and aromatic diamine components of the polyimide to a suitable polyaryl sulfone in a vented extruder and melt-processing the resulting mixture, thereby polymerizing the monomers to form the polyimide component of the blend.

REFERENCES:
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patent: 4293670 (1981-10-01), Robeson et al.
patent: 4364355 (1972-01-01), Barr et al.
patent: 4371672 (1983-02-01), Younes
patent: 4684674 (1987-08-01), Brooks
patent: 4713426 (1987-12-01), Harris et al.
patent: 4713438 (1987-12-01), Harris et al.

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