Method for shortstopping polymerization processes in the manufacture of synthetic rubbers

This invention is related to a new shortstopping combination for use in stopping free radical and redox initiated polymerization is the combination of hydroxylamine (free base) (HA) and i-propylhydroxylamine (IPAH). It is more effective as related N-alcylated-hydroxylamines with regard to mooney sta...

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Bibliographische Detailangaben
Hauptverfasser:	BOGEN, HEINZ-JURGEN, STILLER, HARTMUT K, GUTH, ILONA+, EDEL, HANS A. R, MARX, DORIS R
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	This invention is related to a new shortstopping combination for use in stopping free radical and redox initiated polymerization is the combination of hydroxylamine (free base) (HA) and i-propylhydroxylamine (IPAH). It is more effective as related N-alcylated-hydroxylamines with regard to mooney stability. The combination is not corrosive to metals used in commercial equipment for emulsion polymerization and prevents the rust formation and the formation of nitrosamines, coagulate and precipitate.