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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Main Authors | , , , |
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Format | Patent |
Language | English German |
Published |
28.03.1985
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Edition | 3 |
Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: DE19833333145 |