Mechanically stabilized polyazoles comprising at least one polyvinyl alcohol

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United States of America Patent

PATENT NO 9006339
APP PUB NO 20120289654A1
SERIAL NO

13467485

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Abstract

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A process for preparing mechanically stabilized polyazoles, comprising the following steps:

    I) treating at least one polyazole having at least one amino group in a repeat unit with a solution comprising (i) at least one strong acid and (ii) at least one stabilizing reagent, the total content of stabilizing reagents in the solution being in the range from 0.01 to 30% by weight,II) performing the stabilization reaction directly and/or in a subsequent processing step by heating to a temperature greater than 25° C.,the stabilizing reagent used being at least one polyvinyl alcohol.

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Patent Owner(s)

  • BASF SE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Belack, Jörg Skillman, US 12 42
Fleischhaker, Friederike Ludwigshafen, DE 35 106
Gronwald, Oliver Frankfurt, DE 49 440

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