发明名称 |
POLYETHER CARBONATE POLYOL PRODUCTION METHOD |
摘要 |
The invention relates to a method for producing polyether carbonate polyols by attaching alkylene oxides and carbon dioxide to one or more H-functional starters in the presence of a double-metal cyanide catalyst, characterized in that (a) a suspending agent which contains no H-functional groups is provided in a reactor; (ß) optionally, a moiety of alkylene oxide is added to the mixture from step (a) at temperatures of 90 to 150°C, and the addition of the alkylene oxide compound is then interrupted; and (?) one or more H-functional starters are continuously metered into the reactor during the reaction. |
申请公布号 |
CA2882915(A1) |
申请公布日期 |
2014.03.06 |
申请号 |
CA20132882915 |
申请日期 |
2013.08.23 |
申请人 |
BAYER MATERIALSCIENCE AG |
发明人 |
MULLER, THOMAS ERNST;GURTLER, CHRISTOPH;HOFMANN, JORG;WOHAK, MATTHIAS;BRAUN, STEFANIE;WOLF, AUREL;PECKERMANN, ILJA |
分类号 |
C08G64/34 |
主分类号 |
C08G64/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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