Polymerization of 2-pyrrolidone with CO.sub.2 /SO.sub.2

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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528312, 528319, 528326, C08G 6924

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active

042152119

ABSTRACT:
An improved process for the polymerization of 2-pyrrolidone provides high-molecular-weight poly-2-pyrrolidone at higher rates of conversion by effecting the alkaline-catalyzed polymerization in the presence of a synergistic activator consisting of carbon dioxide and sulfur dioxide.

REFERENCES:
patent: 3174951 (1965-03-01), Taber
patent: 3721652 (1973-03-01), Barnes
patent: 4100146 (1978-07-01), Bacskai
patent: 4101531 (1978-07-01), Bacskai
patent: 4105645 (1978-08-01), Barnes et al.
patent: 4107154 (1978-08-01), Bacskai

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