Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1978-04-24
1980-04-08
Levin, Stanford M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
526351, 528489, C08F 602
Patent
active
041973984
ABSTRACT:
Polypropylene is neutralized and deashed by contacting a slurry of the particulate polymer with an alcohol solution of from 1 to 5 milliequivalents of an alkali base, preferably Na or K, excess beyond that needed to neutralize said polymer.
REFERENCES:
patent: 2900373 (1959-08-01), Martin
patent: 3075959 (1963-01-01), Wagener et al.
patent: 3112302 (1963-11-01), Kolling et al.
patent: 3520866 (1970-07-01), Bacskal et al.
Floyd Joseph C.
Lundy, Jr. Frank J.
Schutze Henry G.
Exxon Research & Engineering Co.
Kurtzman M. B.
Levin Stanford M.
Roth D. A.
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