Esterification of carboxyl end groups employing addition of oxir

Details Esterification of carboxyl end groups employing addition of oxir Esterification of carboxyl end groups employing addition of oxir

1983-07-05

1984-04-10

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264176F, 264211, D01F 100

Patent

active

044420587

ABSTRACT:
A method of reducing the number of free carboxyl end groups present in a fiber-forming polymer is given whereby to the polymer minor amounts of a low-boiling oxirane compound such as ethylene oxide are added.

REFERENCES:
patent: 3627867 (1971-12-01), Schwarz
patent: 4016142 (1977-04-01), Alexander et al.
patent: 4071504 (1978-01-01), Korrer

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