POLYETHER POLYMERIZATION PROCESS

• Main Authors: WHALEY, Curtis M, FISK, Jason S, BABB, David A, KUMBHALKAR, Mrunmayi, MURDOCH, Brian J, SHI, Haifeng
• Format: Patent
• Language: English; French; German
• Published: 13.09.2023
• 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

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...