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-

1976-05-19

1978-07-04

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252428, 252431N, 528314, 528323, 2603265FL, 2603265FN, C08G 6924

Patent

active

040987744

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: 2638463 (1953-05-01), Ney et al.
patent: 3346566 (1967-10-01), Chiddix et al.
patent: 3681294 (1972-08-01), Jarovitzky
patent: 3681295 (1972-08-01), Jarovitzky
patent: 3721652 (1973-03-01), Barnes
patent: 3835100 (1974-09-01), Sekiguchi et al.

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