Preparation of polycaprolactam with aqueous extract containing c

Details Preparation of polycaprolactam with aqueous extract containing c Preparation of polycaprolactam with aqueous extract containing c

1982-08-24

1984-03-13

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

526 68, 528312, 528315, C08G 6916

Patent

active

044368976

ABSTRACT:
An improved process for the preparation of fiber-forming polycaprolactam by polymerizing .epsilon.-caprolactam, and an aqueous extract containing .epsilon.-caprolactam and caprolactam oligomers, which extract has been obtained by extracting polycaprolactam with water, wherein the aqueous extract contains from 0.1 to 5.0% by weight of oligomers of caprolactam, based on the monomeric caprolactam in the aqueous extract.

REFERENCES:
patent: 3258410 (1966-06-01), Temple et al.
patent: 3374207 (1968-03-01), Ryffel et al.
patent: 3565866 (1971-02-01), Guenther et al.
patent: 4053457 (1977-10-01), Cordes

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