Polyether-polysiloxane polyols
    1.
    发明申请
    Polyether-polysiloxane polyols 有权
    聚醚 - 聚硅氧烷多元醇

    公开(公告)号:US20080171829A1

    公开(公告)日:2008-07-17

    申请号:US11654173

    申请日:2007-01-17

    CPC分类号: C08G77/46 C08L83/12

    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.

    摘要翻译: 提供了制备聚醚 - 聚二烷基硅氧烷嵌段共聚物的方法。 该方法包括提供包含至少一种烯化氧和至少一种硅烷醇封端的聚二烷基硅氧烷的混合物; 并在双金属氰化物配合物催化剂的存在下,任选地在非质子溶剂和/或抗氧化剂的存在下使混合物聚合。 还提供了通过上述方法制备的分子量为150-50,000g / mol并具有1.0至1.5的多分散指数的聚醚 - 聚二烷基硅氧烷嵌段共聚物。

    Polyether-polysiloxane polyols
    2.
    发明授权
    Polyether-polysiloxane polyols 有权
    聚醚 - 聚硅氧烷多元醇

    公开(公告)号:US07834082B2

    公开(公告)日:2010-11-16

    申请号:US11654173

    申请日:2007-01-17

    IPC分类号: C08L83/00

    CPC分类号: C08G77/46 C08L83/12

    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.

    摘要翻译: 提供了制备聚醚 - 聚二烷基硅氧烷嵌段共聚物的方法。 该方法包括提供包含至少一种烯化氧和至少一种硅烷醇封端的聚二烷基硅氧烷的混合物; 并在双金属氰化物配合物催化剂的存在下,任选地在非质子溶剂和/或抗氧化剂的存在下使混合物聚合。 还提供了通过上述方法制备的分子量为150-50,000g / mol并具有1.0至1.5的多分散指数的聚醚 - 聚二烷基硅氧烷嵌段共聚物。