发明名称 |
METHOD FOR PRODUCING POLYETHER POLYOLS. |
摘要 |
<p>The invention relates to a method for producing polyether carbonate polyols, wherein (i) in a first step a polyether carbonate polyol is produced from one or more H-functional starter substances, one or more alkylene oxides, and carbon dioxide in the presence of at least one DMC catalyst, and (ii) in a second step the polyether carbonate polyol is chain-extended with a mixture of at least two different alkylene oxides in the presence of at least one DMC catalyst. The invention further relates to polyether carbonate polyols that contain a terminal mixed block of at least two alkylene oxides and to a method for producing soft polyurethane foams, wherein a polyol component containing a polyether carbonate polyol according to the invention is used.</p> |
申请公布号 |
MX2013013827(A) |
申请公布日期 |
2014.02.27 |
申请号 |
MX20130013827 |
申请日期 |
2012.05.30 |
申请人 |
BAYER INTELLECTUAL PROPERTY GMBH |
发明人 |
HOFMANN, JÖRG;SCHNEIDER, MICHAEL;KLESCZEWSKI, BERT |
分类号 |
C08G64/34;C08G18/44;C08G64/18;C08G65/26 |
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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