Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use
    1.
    发明申请
    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use 有权
    用于制备SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法及其用途

    公开(公告)号:US20080153995A1

    公开(公告)日:2008-06-26

    申请号:US11956483

    申请日:2007-12-14

    IPC分类号: C08G77/42

    CPC分类号: C08G77/46 C08L83/12

    摘要: The invention relates to a process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers having (AB) repeat units, via reaction of one or more polyetherdiols with a stoichiometric excess of α,ω-dihydropoly-dimethylsiloxanes and at least one tertiary amine as catalyst, which comprises, after completed reaction of the alcohol component, continuing the reaction in the presence of small amounts of water until no remaining ≡Si(H) groups are detectable by a gas-volumetric method.

    摘要翻译: 本发明涉及通过一种或多种聚醚二醇与化学计量过量的α,ω-二氢聚二甲基硅氧烷和至少一种聚醚二醇的反应制备具有(AB)重复单元的SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法 叔胺作为催化剂,其包括在醇组分完全反应之后,在少量水存在下继续反应,直到通过气体容积法不能检测到剩余的≡Si(H)基团。

    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use
    2.
    发明申请
    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use 有权
    用于制备SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法及其用途

    公开(公告)号:US20080153992A1

    公开(公告)日:2008-06-26

    申请号:US11956423

    申请日:2007-12-14

    IPC分类号: C08G77/46

    摘要: The invention relates to a process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers having (AB) repeat units, via reaction by methods known per se of polyetherdiols with a stoichiometric excess of α,ω-dihydropolydimethylsiloxanes, in the presence of one or more compounds of elements of main group 13 and/or of transition group 3 as catalyst, which comprises, after completed reaction of the alcohol component, continuing the reaction until no remaining ≡Si(H) groups are detectable by a gas-volumetric method, and also to the compounds thus prepared, and to their use as surfactant additives for the production of polyurethane ether foams.

    摘要翻译: 本发明涉及一种制备具有(AB)重复单元的SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法,其通过本身已知的聚醚二醇与化学计量过量的α,ω-二氢聚二甲基硅氧烷的反应,在存在下 的主要组分13和/或过渡组3的元素的一种或多种化合物作为催化剂,其包括在醇组分完全反应之后继续反应,直到没有剩余的≡Si(H)基团可被气 - 体积法,以及由此制备的化合物,以及它们作为用于生产聚氨酯醚泡沫的表面活性剂添加剂的用途。

    AMINE CATALYSTS SUITABLE FOR PRODUCING LOW-EMANATION, RECATALYSIS-STABLE FLEXIBLE POLYURETHANE FOAMS
    4.
    发明申请
    AMINE CATALYSTS SUITABLE FOR PRODUCING LOW-EMANATION, RECATALYSIS-STABLE FLEXIBLE POLYURETHANE FOAMS 审中-公开
    胺催化剂适用于生产低放射性,分解稳定的柔性聚氨酯泡沫

    公开(公告)号:US20090088489A1

    公开(公告)日:2009-04-02

    申请号:US12212276

    申请日:2008-09-17

    IPC分类号: C08G18/16

    摘要: The present invention relates to the use of a reactive amine catalyst, in particular diethylaminoethoxyethanol and/or diethylethanolamine, in aqueous or organic solutions for producing flexible polyurethane foams having an increased recatalysis stability, and also a catalyst combination containing at least one reactive amine catalyst which can be used according to the invention; and at least one organic potassium, tin, bismuth and/or zinc compound; and/or at least one tertiary amine selected from the group consisting of triethylenediamine, triethylamine and/or silamorpholine; and/or at least one acid-blocked derivative of a tertiary amine.

    摘要翻译: 本发明涉及反应性胺催化剂,特别是二乙基氨基乙氧基乙醇和/或二乙基乙醇胺在水溶液或有机溶液中用于生产具有增加的催化稳定性的柔性聚氨酯泡沫的用途,以及含有至少一种反应性胺催化剂的催化剂组合物 可根据本发明使用; 和至少一种有机钾,锡,铋和/或锌化合物; 和/或至少一种选自三亚乙基二胺,三乙胺和/或硅吗啉的叔胺; 和/或至少一种酸封闭的叔胺衍生物。