Polymer treatment

Details Polymer treatment Polymer treatment

1982-09-10

1984-01-03

Marquis, Melvyn I.

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

Synthetic resins

From sulfur-containing reactant

525537, C08G 7514

Patent

active

044243383

ABSTRACT:
Arylene sulfide polymers such as polyphenylene sulfide containing ash-forming impurities or materials verified by contacting an aqueous mixture of such polymer with molecular oxygen and a finite, but small, effective amount of a mineral acid under conditions sufficient to reduce the ash-forming impurities and concurrently at least partially cure the polymer.

REFERENCES:
patent: 3948865 (1976-04-01), Brady et al.
patent: 4251575 (1981-02-01), Brady et al.

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