Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1978-01-23
1980-07-29
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528312, 528319, 528326, C08G 6924
Patent
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
Anderson Harold D.
Chevron Research Company
DeJonghe T. G.
Newell D. A.
Squires L. S.
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