ALKYLENE OXIDE POLYMER PRODUCTION METHOD
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United States of America Patent
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Apr 6, 2017
app pub date -
Feb 12, 2015
filing date -
Mar 31, 2014
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Abstract
Provided is an alkylene oxide polymer production method, whereby it becomes possible to produce an alkylene oxide polymer having a high polymerization degree on an industrial scale and with high reproducibility. An alkylene oxide polymer production method comprising carrying out a polymerization reaction of an alkylene oxide in an inert hydrocarbon solvent in the presence of a zinc catalyst to produce an alkylene oxide polymer, wherein the zinc catalyst is produced by reacting an organozinc compound with a monohydric alcohol in an amount of 12-fold equivalent or less relative to the amount of the organozinc compound and an aliphatic polyhydric alcohol in an amount of 0.2- to 1.1-fold equivalent relative to the amount of the organozinc compound, and the polymerization reaction is carried out under such a condition that the amount of the monohydric alcohol in the polymerization reaction system becomes 0.01-fold equivalent or less relative to the amount of the organozinc compound.
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