Crown ether and N-acyl pyrrolidone activated copolymerization of

Details Crown ether and N-acyl pyrrolidone activated copolymerization of Crown ether and N-acyl pyrrolidone activated copolymerization of

1978-03-31

1979-10-02

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528312, 528325, 528326, C08G 6924

Patent

active

041699360

ABSTRACT:
Processes for copolymerizing 2-pyrrolidone and caprolactam to yield a copolymer which can be formed into useful shaped articles, e.g., filaments. The processes are characterized by the use of both a crown ether and an N-acyl pyrrolidone activator and the use of a limited copolymerization temperature range.

REFERENCES:
patent: 4073778 (1978-02-01), Collman
Angew, Chem. Internat. Edit., vol. 11, p. 16 (1972), Pedersen et al.
Translation of Czech Patent 158,341, supplied by applicant.
Chemical Abstracts, vol. 58 (1963), 1801b.
Volokhina et al., Vysokomolekul. Soedin, 5, 206-211 (1963).
Journal of Polymer Science: Part A, vol. 1, pp. 111-123 (1963), Kobayashi et al.
Journal of Polymer Science: Part A-1, vol. 5, pp. 965-974 (1967), Bar-Zakay et al.

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