Process for producing polyacrylonitrile spinning solutions having stable viscosity

A gentle manner for producing solutions, having stable viscosity, of acrylonitrile (co)polymers having solids concentrations of 20-38% by weight comprises admixing 0.01-1% by weight, based on the solution, of an amine having a pKB < 7, heating this mixture in the course of 0.5-5 hours to 50-100 D...

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Bibliographic Details
Main Authors ENGELHARD,HELMUT,DR, KRU,PETER, NOGAJ,ALFRED,DR, REICHARDT,MANFRED,DR
Format Patent
LanguageEnglish
German
Published 28.03.1985
Edition3
Subjects
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
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Summary:A gentle manner for producing solutions, having stable viscosity, of acrylonitrile (co)polymers having solids concentrations of 20-38% by weight comprises admixing 0.01-1% by weight, based on the solution, of an amine having a pKB < 7, heating this mixture in the course of 0.5-5 hours to 50-100 DEG C, then, if required, adding 0.25 to 2 times the equivalent amount of an amine acceptor and waiting at least 0.1-1 hour prior to processing the solution.
Bibliography:Application Number: DE19833333145