PROCESS FOR PREPARING ARAMID COPOLYMER YARN USING A HALIDE ACID WASH

The present invention concerns methods for removing sulfur from yarn comprising the steps of: a) contacting never-dried polymeric yarn with an aqueous base, the polymer comprising imidazole groups and said polymer comprising sulfur atoms characterized as being in the form of sulfate anions; b) conta...

Full description

Saved in:
Bibliographic Details
Main Authors ALLEN STEVEN R, NEWTON CHRISTOPHER WILLIAM, SITTER ANDREW J, LOWERY JOSEPH LENNING, GABARA VLODEK, RODINI DAVID J
Format Patent
LanguageEnglish
Korean
Published 15.09.2014
Subjects
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
Online AccessGet full text

Cover

More Information
Summary:The present invention concerns methods for removing sulfur from yarn comprising the steps of: a) contacting never-dried polymeric yarn with an aqueous base, the polymer comprising imidazole groups and said polymer comprising sulfur atoms characterized as being in the form of sulfate anions; b) contacting the yarn with an aqueous acid comprising a halide; and c) rinsing the yarn.
Bibliography:Application Number: KR20147021975