LOW DIOL CONTENT MONOFUNCTIONAL ALKOXYPOLYALKYLENE GLYCOLS AND PROCESS FOR PRODUCING THEM

Provided is a process for preparing low diol content monofunctional polyalkylene glycols. The process includes introducing the initiator feed in two portions (a first and second initiator) and drying only the first initiator to remove water. The first and second initiators can be the same or differe...

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Bibliographische Detailangaben
Hauptverfasser:	PENDERGAST, JOHN, G, BARNER, BRUCE, A, WHITMARSH, ROBERT, H, VARINEAU, PIERRE, T, WURM, DAVID, B, THOMPSON, KIRK, R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Provided is a process for preparing low diol content monofunctional polyalkylene glycols. The process includes introducing the initiator feed in two portions (a first and second initiator) and drying only the first initiator to remove water. The first and second initiators can be the same or different. Also provided are new monofunctional polyalkylene glycol compositions. La présente invention concerne un procédé de préparation de polyalkylène glycols monofonctionnels à faible teneur en diols. Le procédé comprend les étapes consistant à introduire la charge d'initiateurs en deux parties (un premier et un second initiateur) et à sécher uniquement le premier initiateur afin d'éliminer l'eau. Le premier et le second initiateur peuvent être identiques ou différents. L'invention concerne également de nouvelles compositions de polyalkylène glycols monofonctionnels.