Invention Grant
US08324325B2 Process for preparing polyether alcohols with DMC catalysts using compounds bearing SiH groups as additives
有权
使用具有SiH基团的化合物作为添加剂的DMC催化剂制备聚醚醇的方法
- Patent Title: Process for preparing polyether alcohols with DMC catalysts using compounds bearing SiH groups as additives
- Patent Title (中): 使用具有SiH基团的化合物作为添加剂的DMC催化剂制备聚醚醇的方法
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Application No.: US12277871Application Date: 2008-11-25
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Publication No.: US08324325B2Publication Date: 2012-12-04
- Inventor: Wilfried Knott , Frank Schubert
- Applicant: Wilfried Knott , Frank Schubert
- Applicant Address: DE Essen
- Assignee: Evonik Goldschmidt GmbH
- Current Assignee: Evonik Goldschmidt GmbH
- Current Assignee Address: DE Essen
- Agency: Frommer Lawrence & Haug LLP
- Priority: DE102007057145 20071128
- Main IPC: C08G65/336
- IPC: C08G65/336 ; C08G18/48 ; C08G77/08 ; C08G65/00 ; C08G18/00 ; C08G77/00
Abstract:
Process for preparing polyether alcohols by polymerization by means of double metal cyanide catalysts (DMC catalysts), characterized in that, before or during the polymerization, one or more, optionally mixed additives consisting of compounds having one or more hydridic hydrogen atoms bonded to one silicon atom are added to the reaction mixture.
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