Polyether polymerization process

Alkylene oxides are polymerized in the presence of a catalyst system comprising a double metal cyanide catalyst modified with certain metal or semimetal compounds. At least one additive is present. The additive is an alkali metal salt, ammonium salt or quaternary ammonium salt of a monocarboxylic ac...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	STEELMAN DAVID K, WESTON JOHN W, ZIEBARTH ROBIN P, MASY JEAN-PAUL, NIKBIN NIMA, RAGHURAMAN ARJUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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