发明名称 |
Polyether-polysiloxane polyols |
摘要 |
A method of making a polyether-polydialkylsiloxane block copolymer is provided. The method comprises providing a mixture comprising at least one alkylene oxide and at least one silanol-terminated polydialkylsiloxane; and polymerizing the mixture in the presence of a double metal cyanide complex catalyst, and optionally in the presence of an aprotic solvent and/or an antioxidant. A polyether-polydialkylsiloxane block copolymer having a molecular weight of 150-50,000 g/mole and having a polydispersity index of 1.0 to 1.5 made by the above method is also provided.
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申请公布号 |
US2008171829(A1) |
申请公布日期 |
2008.07.17 |
申请号 |
US20070654173 |
申请日期 |
2007.01.17 |
申请人 |
BAYER MATERIALSCIENCE LLC |
发明人 |
HAIDER KARL W.;CHUNG JAMES Y.J;DORMISH JEFFREY F.;STARCHER RICK V.;YANO IRENE L.;HORTELANO EDWIN R. |
分类号 |
C09J183/10;C08G77/46;C08L83/12 |
主分类号 |
C09J183/10 |
代理机构 |
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