POLYETHER POLYMERIZATION PROCESS

Polyethers are prepared by polymerizing an alkylene oxide in the presence of a double metal cyanide catalyst complex and certain M5 metal or semi-metal compounds. The double metal cyanide catalyst complex contains 0.5 to 2 weight percent potassium. The ability of this catalyst system to tolerate suc...

Full description

Saved in:
Bibliographic Details
Main Authors WHALEY, Curtis M, FISK, Jason S, BABB, David A, KUMBHALKAR, Mrunmayi, MURDOCH, Brian J, SHI, Haifeng
Format Patent
LanguageEnglish
French
Published 03.09.2020
Subjects
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
Online AccessGet full text

Cover

More Information
Summary:Polyethers are prepared by polymerizing an alkylene oxide in the presence of a double metal cyanide catalyst complex and certain M5 metal or semi-metal compounds. The double metal cyanide catalyst complex contains 0.5 to 2 weight percent potassium. The ability of this catalyst system to tolerate such high amounts of potassium permits the catalyst preparation procedure to be simplified and less expensive. Des polyéthers sont préparés par polymérisation d'un oxyde d'alkylène en présence d'un complexe catalytique de cyanure métallique double et de certains composés métalliques ou semi-métalliques M5 . Le complexe catalytique de cyanure métallique double contient 0,5 à 2 pour cent en poids de potassium. La capacité de ce système catalytique à supporter de telles quantités élevées de potassium permet de simplifier et de réduire le coût de la procédure de préparation catalytique.
Bibliography:Application Number: WO2020US18501