Pyrrolidone polymerization catalyst system

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

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528312, 528313, 528318, 528326, C08G 6924

Patent

active

042185580

ABSTRACT:
The process of making a catalyst for the polymerization of 2-pyrrolidone by contacting an alkali metal pyrrolidonate, a quaternary ammonium carboxylate and carbon dioxide.

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patent: 3875121 (1975-04-01), Brassat et al.
patent: 3935171 (1976-01-01), Ciaperoni et al.

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