POLYETHER POLYMERIZATION PROCESS
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United States of America
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Apr 10, 2025
app pub date -
Sep 30, 2022
filing date -
Sep 30, 2022
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Abstract
Alkylene oxides are polymerized in the presence of a catalyst system that includes a double metal cyanide catalyst. At least one additive is present. The additive is an alkali metal, ammonium or quaternary ammonium salt of a monocarboxylic acid having up to 24 carbon atoms; monobasic potassium phosphate, a monobasic ammonium or quaternary ammonium phosphate, a dibasic ammonium and quaternary ammonium phosphate or phosphoric acid.
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