Method of stabilising solutions in strong sulphuric acid of polyacrylonitrile and copolymers of acrylonitrile

In a modification or improvement of the method of the parent Specification for stabilizing solutions of acrylonitrile polymers in strong sulphuric acid by adding inhibitors of saponification, there is added to the solution a lactone such as butyrolactone, pyrophosphoric acid, acetic acid, acetic anh...

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Bibliographische Detailangaben

Hauptverfasser:	NORBERTPETERSEN EGON, IRION WILHELM, SAAR WERNER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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