Arylene sulfide polymer purification

Details Arylene sulfide polymer purification Arylene sulfide polymer purification

1976-08-13

1978-01-31

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457R, 260 4585R, 260 791, C08F 2800

Patent

active

040715094

ABSTRACT:
Arylene sulfide polymers containing ash-forming impurities or materials are purified by heating such polymers with an organic amide and an alkali metal salt selected from carboxylates, carbonates, and selected lithium halides under conditions sufficient to reduce the ash-forming impurities without extensive polymer degradation.

REFERENCES:
patent: 3354129 (1967-11-01), Edmonds, Jr. et al.
patent: 3607843 (1971-09-01), Vidaurri, Jr.
patent: 3839302 (1974-10-01), Miles
patent: 3919177 (1975-11-01), Campbell
patent: 4017450 (1977-04-01), Bailey

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