发明申请
- 专利标题: PROCESS FOR PREPARING HIGH MOLECULAR WEIGHT POLYETHER POLYOLS
- 专利标题(中): 制备高分子量聚醚多元醇的方法
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申请号: US14125776申请日: 2012-06-26
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公开(公告)号: US20140142344A1公开(公告)日: 2014-05-22
- 发明人: Klaus Lorenz , Jörg Hofmann , Horst Zwick , Christian Steinlein , Edward Browne
- 申请人: Klaus Lorenz , Jörg Hofmann , Horst Zwick , Christian Steinlein , Edward Browne
- 申请人地址: DE Monheim
- 专利权人: BAYER INTELLECTUAL ROPERTY GMBH
- 当前专利权人: BAYER INTELLECTUAL ROPERTY GMBH
- 当前专利权人地址: DE Monheim
- 优先权: EP11172174.2 20110630
- 国际申请: PCT/EP2012/062363 WO 20120626
- 主分类号: C08G65/26
- IPC分类号: C08G65/26
摘要:
The invention relates to a process for the preparation of polyether polyols with equivalent molecular weights of from 8,000 to 20,000 g/mol from one or more H-functional starter compounds and one or more alkylene oxides in the presence of a double metal cyanide catalyst, characterized in that the alkylene oxides are metered into the reactor in the course of from 15 to 23 h.
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