Method for improving color and impact strength of nitrile polyme

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...

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528502, 528503, C08F 600, C08F 800

Patent

active

042063000

ABSTRACT:
Reduction of yellowing and improvement of impact strength are obtained during the processing of nitrile polymers when said polymers are heated to a plastic state in the presence of an inert gas, thereby excluding oxygen.

REFERENCES:
patent: 2445042 (1948-07-01), Silverman
patent: 3426102 (1969-02-01), Solak et al.
patent: 3586737 (1971-06-01), Duke et al.
patent: 3763278 (1973-10-01), Griffith

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