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    Interfacial method of preparing ester-substituted diaryl carbonates
    5.
    发明授权
    Interfacial method of preparing ester-substituted diaryl carbonates 有权
    制备酯取代的碳酸二芳基酯的界面方法

    公开(公告)号：US06420588B1

    公开(公告)日：2002-07-16

    申请号：US09911440

    申请日：2001-07-24

    申请人： Patrick Joseph McCloskey ,  Timothy Brydon Burnell ,  Daniel Joseph Brunelle ,  Elliott West Shanklin ,  Paul Michael Smigelski, Jr. ,  Ganesh Kailasam

    发明人： Patrick Joseph McCloskey ,  Timothy Brydon Burnell ,  Daniel Joseph Brunelle ,  Elliott West Shanklin ,  Paul Michael Smigelski, Jr. ,  Ganesh Kailasam

    IPC分类号： C07C6996

    CPC分类号： C07C68/02 ,  C07C69/96

    摘要： High yields of ester-substituted diary carbonates such as bis-methyl salicyl carbonate were obtained by the condensation of methyl salicylate with phosgene in the presence of a phase transfer catalyst (PTC) in an interfacial reaction system in which the pH of the aqueous phase was greater than 9.3. Using the method of the present invention conversions of greater than 99% were obtained whereas under standard conditions using triethylamine as the catalyst conversions were limited to 70-75% of the methyl salicylate starting material even with a 20 mole % excess of added phosgene. The optimized conditions of the of the present invention use only a slight excess of phosgene and represent an attractive route for the manufacture of bis methyl salicyl carbonate and ester-substituted diaryl carbonates generally.

    摘要翻译： 通过在界面反应体系中存在相转移催化剂（PTC）的情况下，通过水杨酸甲酯与光气的缩合得到高产率的酯取代的二元碳酸酯，其中水相的pH为 大于9.3。 使用本发明的方法获得大于99％的转化率，而在使用三乙胺的标准条件下，即使使用20摩尔％过量的加入的光气，催化剂转化率也限于水杨酸甲酯起始原料的70-75％。 本发明的优化条件仅使用轻微过量的光气，并且代表通常用于制造碳酸双甲基水杨酸酯和酯取代的二芳基碳酸酯的有吸引力的途径。

    Tin free silyl-terminated polymers
    7.
    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。