Aliphatic polycarbonate quench method
    1.
    发明授权
    Aliphatic polycarbonate quench method 有权
    脂肪族聚碳酸酯淬火法

    公开(公告)号:US09012675B2

    公开(公告)日:2015-04-21

    申请号:US13119407

    申请日:2009-09-17

    IPC分类号: C07C69/96 C08G64/40 C08G64/34

    摘要: The present disclosure is directed to, in part, an aliphatic polycarbonate polymerization reaction initiated by combining an epoxide with carbon dioxide in the presence of a catalytic transition metal-ligand complex to form a reaction mixture, and further quenching that polymerization reaction by contacting the reaction mixture with an acid containing a non-nucleophilic anion produces a crude polymer solution with improved stability and processability.

    摘要翻译: 本公开部分地涉及通过在催化过渡金属 - 配体络合物的存在下将环氧化物与二氧化碳结合以形成反应混合物引发的脂族聚碳酸酯聚合反应,并通过使反应接触进一步淬灭该聚合反应 与含有非亲核阴离子的酸的混合物产生具有改进的稳定性和加工性的粗聚合物溶液。

    ALIPHATIC POLYCARBONATE QUENCH METHOD
    3.
    发明申请
    ALIPHATIC POLYCARBONATE QUENCH METHOD 有权
    二氯聚碳酸酯法

    公开(公告)号:US20110207899A1

    公开(公告)日:2011-08-25

    申请号:US13119407

    申请日:2009-09-17

    IPC分类号: C08G64/34

    摘要: The present disclosure is directed to, in part, an aliphatic polycarbonate polymerization reaction initiated by combining an epoxide with carbon dioxide in the presence of a catalytic transition metal-ligand complex to form a reaction mixture, and further quenching that polymerization reaction by contacting the reaction mixture with an acid containing a non-nucleophilic anion produces a crude polymer solution with improved stability and processability.

    摘要翻译: 本公开部分地涉及通过在催化过渡金属 - 配体络合物的存在下将环氧化物与二氧化碳结合以形成反应混合物引发的脂族聚碳酸酯聚合反应,并通过使反应接触进一步淬灭该聚合反应 与含有非亲核阴离子的酸的混合物产生具有改进的稳定性和加工性的粗聚合物溶液。

    Tunable polymer compositions
    5.
    发明授权
    Tunable polymer compositions 有权
    可调聚合物组合物

    公开(公告)号:US08575245B2

    公开(公告)日:2013-11-05

    申请号:US13141532

    申请日:2009-12-18

    摘要: The present invention provides polycarbonate compositions having a tunable decomposition temperature. Suitable cationic additives (e.g., phosphonium, phosphazene, quaternary ammonium, guanidinium, pyridinium, arsonium, etc.) are disclosed for lowering the decomposition temperature of polymer compositions. The invention further provides methods of preparing such polymer compositions with tunable decomposition temperatures.

    摘要翻译: 本发明提供具有可调分解温度的聚碳酸酯组合物。 公开了适合的阳离子添加剂(例如鏻,磷腈,季铵,胍,吡啶鎓,ium等)以降低聚合物组合物的分解温度。 本发明还提供了制备具有可调分解温度的聚合物组合物的方法。

    Polycarbonate polyol compositions and methods
    9.
    发明授权
    Polycarbonate polyol compositions and methods 有权
    聚碳酸酯多元醇组合物和方法

    公开(公告)号:US08247520B2

    公开(公告)日:2012-08-21

    申请号:US12994544

    申请日:2009-09-08

    IPC分类号: C08G63/02 C08G63/00

    摘要: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.

    摘要翻译: 一方面,本公开内容涵盖用于CO 2和环氧化物共聚的聚合体系,其包括1)包含具有永久性配体组的金属配位化合物和至少一种作为聚合引发剂的配体的催化剂,和2)链转移剂 具有两个或更多个可引发聚合的位点。 在第二方面,本发明包括使用本发明聚合体系合成聚碳酸酯多元醇的方法。 在第三方面,本公开内容包括聚碳酸酯多元醇组合物,其特征在于聚合物链具有高百分比的-OH端基和高百分比的碳酸酯键。 组合物的特征还在于它们含有聚合物链,其具有与多个单独的聚碳酸酯链连接的嵌入的多官能部分。