Quaternary ammonium catalyst system for the polymerization of 2-

Details Quaternary ammonium catalyst system for the polymerization of 2- Quaternary ammonium catalyst system for the polymerization of 2-

1978-05-08

1979-04-24

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431N, 528312, 528326, C08F 408

Patent

active

041511093

ABSTRACT:
The process of making a catalyst for the polymerization of 2-pyrrolidone by contacting an alkali metal pyrrolidonate, a quaternary ammonium halide and carbon dioxide in a mol ratio of about 1:0.1-2:0.1-0.5. The alkali metal pyrrolidonate may be prepared by reacting an alkali metal hydroxide with 2-pyrrolidone. The polymerization of 2-pyrrolidone in the presence of this catalyst system produces poly-2-pyrrolidone of high molecular weight.

REFERENCES:
patent: 3450662 (1969-06-01), Tierney
patent: 3563980 (1971-02-01), Van Mourik et al.
patent: 3721652 (1973-03-01), Barnes
patent: 3945897 (1976-03-01), Choi

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