发明授权
US08334355B2 Silicone-polyether block copolymers having a defined polydispersity in the polyoxyalkylene part and their use as stabilizers for producing polyurethane foams
有权
在聚氧化烯部分中具有确定的多分散性的聚硅氧烷 - 聚醚嵌段共聚物及其作为制备聚氨酯泡沫塑料的稳定剂的用途
- 专利标题： Silicone-polyether block copolymers having a defined polydispersity in the polyoxyalkylene part and their use as stabilizers for producing polyurethane foams
- 专利标题（中）： 在聚氧化烯部分中具有确定的多分散性的聚硅氧烷 - 聚醚嵌段共聚物及其作为制备聚氨酯泡沫塑料的稳定剂的用途
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申请号： US12605699申请日： 2009-10-26
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公开(公告)号： US08334355B2公开(公告)日： 2012-12-18
- 发明人: Frauke Henning , Wilfried Knott , Frank Schubert , Roland Hubel , Christian Eilbracht
- 申请人： Frauke Henning , Wilfried Knott , Frank Schubert , Roland Hubel , Christian Eilbracht
- 申请人地址： DE Essen
- 专利权人： Evonik Goldschmidt GmbH
- 当前专利权人： Evonik Goldschmidt GmbH
- 当前专利权人地址： DE Essen
- 代理机构： Frommer Lawrence & Haug LLP
- 优先权： DE102008043343 20081031
- 主分类号： C08G77/12
- IPC分类号： C08G77/12 ; C08J9/00 ; C07F7/02 ; C09K3/00
摘要：
Silicone-polyether block copolymers prepared by organomodification of branched polysiloxanes having terminal and/or lateral SiH functions or linear polysiloxanes having lateral and/or terminal SiH functions by means of polyethers or polyether mixtures, characterized in that the polyethers used have a polydispersity Mw/Mn in the range from 1.0 to 1.5 and/or ratios Mn/MWIN and Mw/MWIN in the range from 0.7 to 1.3, their preparation and use and also polymer articles produced therewith.
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