Methods of synthesis of polysuccinimide, copolymers of...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

Reexamination Certificate

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C528S310000, C528S354000, C528S363000

Reexamination Certificate

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06919421

ABSTRACT:
Disclosed are methods of synthesis of polysuccinimide, copolymers, derivatives and blends with additives thereof, using a supercritical fluid. Also disclosed are methods of isolating, compounding, stabilizing and processing the polysucciminide, its copolymers and derivatives.

REFERENCES:
patent: 6414050 (2002-07-01), Howdle et al.
patent: 6444772 (2002-09-01), McGinniss et al.
patent: 6486078 (2002-11-01), Rangarajan et al.
patent: 6486355 (2002-11-01), Ferrieri
patent: 6589355 (2003-07-01), Thomas et al.

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