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    Tin free silyl-terminated polymers
    5.
    发明授权
    Tin free silyl-terminated polymers 有权
    无锡甲硅烷基封端的聚合物

    公开(公告)号：US08877885B2

    公开(公告)日：2014-11-04

    申请号：US13704162

    申请日：2011-06-29

    申请人： Kamesh R. Vyakaranam ,  Ling Zhang ,  William A. Koonce ,  Juan Carlos Medina ,  Ganesh Kailasam ,  Rajat Duggal ,  Nathan Wilmot

    发明人： Kamesh R. Vyakaranam ,  Ling Zhang ,  William A. Koonce ,  Juan Carlos Medina ,  Ganesh Kailasam ,  Rajat Duggal ,  Nathan Wilmot

    IPC分类号： C08G18/20

    CPC分类号： C08G18/222 ,  C08G18/18 ,  C08G18/20 ,  C08G18/289 ,  C08G18/3893 ,  C08G18/4825 ,  C08G18/718 ,  C08G18/7621 ,  C08G18/7671 ,  C08G18/837

    摘要： Embodiments of the invention provide for methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule. The method comprises providing a polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, adding to the polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction to form a composition comprising hydrosilylated polyoxyalkylene polymers, reacting the hydrosilylated polyoxyalkylene polymers with at least one isocyanate in the presence of a first tin-free catalyst to form an isocyanate reacted hydrosilylated polymer, and optionally reacting the isocyanate reacted hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form a polyol reacted crosslinkable silane-terminated polymer.

    摘要翻译： 本发明的实施方案提供了制备包含在每个分子中具有至少一个可交联甲硅烷基的可交联的硅烷端基聚合物的组合物的方法。 该方法包括在每个分子中提供具有至少一个不饱和基团和至少一个醇羟基的聚合物，向该聚合物中加入每个分子中具有氢 - 硅键和交联性甲硅烷基的化合物和氢化硅烷化催化剂从而携带 进行氢化硅烷化反应以形成包含氢化硅烷化聚氧化烯聚合物的组合物，在第一无锡催化剂存在下使氢化硅烷化聚氧化烯聚合物与至少一种异氰酸酯反应，以形成异氰酸酯反应的氢化硅烷化聚合物，以及任选地使异氰酸酯反应的硅烷化聚合物与 具有至少2的标称官能度的多元醇以形成多元醇反应的可交联的硅烷封端的聚合物。

    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate
    9.
    发明授权
    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate 失效
    低温制备聚碳酸酯低聚物混合物制造聚碳酸酯的方法

    公开(公告)号：US07041775B2

    公开(公告)日：2006-05-09

    申请号：US10830163

    申请日：2004-04-21

    申请人： Maria Tomas Martinez ,  Alberto Nisoli ,  Alfredo Lopez Carretero ,  Ganesh Kailasam ,  David Domingo ,  Patrick Joseph McCloskey

    发明人： Maria Tomas Martinez ,  Alberto Nisoli ,  Alfredo Lopez Carretero ,  Ganesh Kailasam ,  David Domingo ,  Patrick Joseph McCloskey

    IPC分类号： C08G64/00

    CPC分类号： C08G64/307 ,  B01J19/18 ,  B01J19/1806 ,  B01J19/1887 ,  B01J19/20 ,  B01J2219/00031 ,  B01J2219/0004 ,  B01J2219/00083 ,  B01J2219/00094 ,  B01J2219/00166 ,  B01J2219/00184 ,  B01J2219/00186 ,  C08G64/205

    摘要： The present invention provides a method of making polycarbonate oligomers, polycarbonate, molded articles formed from polycarbonate, and an apparatus for making polycarbonate. An oligomer mixture is first prepared by the steps of providing an equilibration system comprising a vessel, a reaction mixture contained within the vessel, and means for mixing the reaction mixture contained within the vessel wherein the reaction mixture comprises a melted activated diaryl carbonate composition, and a catalyst present in sufficient amount to initiate an oligomerization reaction between a dihydroxy composition and the activated diaryl carbonate to form polycarbonate oligomers. The method further includes the steps of introducing a melted dihydroxy composition to the reaction mixture contained within the equilibration system, maintaining the reaction mixture contained within the vessel at an oligomerization temperature, said oligomerization temperature being below the melting point the dihydroxy composition, and sufficiently high to allow formation of a homogeneous melt within the vessel, and continuously drawing off a product stream from the equilibration system, wherein the product stream comprises a polycarbonate oligomer mixture. This polycarbonate oligomer mixture is suitably used as a feed stock for producing polycarbonate in a polycondensation system. The polycarbonate is suitably used for the preparation of molded articles.

    摘要翻译： 本发明提供一种制备聚碳酸酯低聚物，聚碳酸酯，由聚碳酸酯形成的模制品的方法和用于制备聚碳酸酯的装置。 首先通过以下步骤制备低聚物混合物，所述步骤包括提供包含容器，容器内的反应混合物的平衡系统和用于混合包含在容器内的反应混合物的装置，其中反应混合物包含熔融的活化碳酸二芳基酯组合物和 存在足够量的催化剂以引发二羟基组合物和活化的碳酸二芳基酯之间的低聚反应以形成聚碳酸酯低聚物。 该方法还包括以下步骤：将熔融的二羟基组合物引入平衡系统中包含的反应混合物中，将容器内的反应混合物保持在低聚温度，所述低聚温度低于二羟基组合物的熔点，并且足够高 以允许在容器内形成均匀的熔体，并且从平衡系统连续地抽出产物流，其中产物流包含聚碳酸酯低聚物混合物。 该聚碳酸酯低聚物混合物适合用作在缩聚体系中制造聚碳酸酯的原料。 聚碳酸酯适合用于制备模塑制品。