PROCESS FOR ENHANCING THE MELT STRENGTH OF POLYPROPYLENE

PROCESS FOR ENHANCING THE MELT STRENGTH OF POLYPROPYLENE

A process for enhancing the melt strength of polypropylene includes the steps of: mixing the polypropylene with at least 0.1-8 wt. % of an oligomer of maleimide or a derivative thereof, based on the amount of polypropylene, completely or substantially in the absence of peroxide; reacting the polypro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DE HOOG, ARIE, JACOB, OLDE HANTER, LAMBERTUS, GERHARDUS, JOHANNUS, EISENHUTH, LUDWIG, SCHNEIDER, PETER, MASLOW, WASIL
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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:A process for enhancing the melt strength of polypropylene includes the steps of: mixing the polypropylene with at least 0.1-8 wt. % of an oligomer of maleimide or a derivative thereof, based on the amount of polypropylene, completely or substantially in the absence of peroxide; reacting the polypropylene and oligomer of maleimide or a derivative thereof at a temperature between 150° C. and 300° C.