Accelerated polymerization of 2-pyrrolidone

Details Accelerated polymerization of 2-pyrrolidone Accelerated polymerization of 2-pyrrolidone

1980-03-10

1981-05-19

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528312, 528313, 528319, 528326, C08G 6924

Patent

active

042686601

ABSTRACT:
A novel method of utilizing quaternary ammonium compounds to accelerate the polymerization of 2-pyrrolidone is disclosed. The method consists of dehydrating the hygroscopic quaternary ammonium compound by adding it to 2-pyrrolidone and distilling over, under vacuum, a portion of the pyrrolidone whereby the water is removed and then adding the residue to a conventional anhydrous polymerization mixture composed of an alkali metal salt of 2-pyrrolidone dissolved in 2-pyrrolidone and effecting polymerization by adding a polymerization initiator and heating the mixture to a temperature ranging from about room temperature to about 60.degree. C.

REFERENCES:
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patent: 3060153 (1962-10-01), Follett
patent: 3069392 (1962-12-01), Clark et al.
patent: 3174951 (1965-03-01), Taber
patent: 3721652 (1970-09-01), Barnes
patent: 3835100 (1974-09-01), Sekiguchi et al.
patent: 4098774 (1978-07-01), Bacskai
Die Makromolekulare, 161 (1972), p. 64.

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