Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1978-06-12
1980-06-03
Levin, Stanford M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
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
Bond Thomas J.
Feldman Daniel W.
Talsma Herbert
Evans Larry W.
Knudsen Herbert D.
Levin Stanford M.
Standand Oil Company
Untener David J.
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