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    CATALYST RECYCLE METHODS
    5.
    发明申请
    CATALYST RECYCLE METHODS 审中-公开

    公开(公告)号：US20170096407A1

    公开(公告)日：2017-04-06

    申请号：US15308989

    申请日：2015-04-29

    申请人： Novomer, Inc.

    发明人： Sadesh H. SOOKRAJ

    IPC分类号： C07D305/12 ,  B01J38/74 ,  B01J31/40 ,  B01J31/22 ,  B01J31/20

    CPC分类号： C07D305/12 ,  B01J31/20 ,  B01J31/2217 ,  B01J31/403 ,  B01J38/74 ,  C07D307/60 ,  Y02P20/584

    摘要： The present invention provides novel solutions to the problem of recycling carbonylation catalysts in epoxide carbonylation processes. The inventive methods are characterized in that the catalyst is recovered in a form other than as active catalyst. In some embodiments, catalyst components are removed selectively from the carbonylation product stream in two or more processing steps. One or more of these separated catalyst components are then utilized to regenerate active catalyst which is utilized during another time interval to feed a continuous carbonylation reactor.

    Polycarbonate polyol compositions and methods
    7.
    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：US09388277B2

    公开(公告)日：2016-07-12

    申请号：US14402835

    申请日：2013-05-24

    申请人： NOVOMER, INC.

    发明人： Jay J. Farmer

    IPC分类号： C08G18/10 ,  C08G64/34 ,  C08G65/26 ,  C08G18/44 ,  C08G64/02 ,  C08L63/00 ,  B01J31/02 ,  B01J31/18 ,  B01J31/22

    CPC分类号： C08G64/34 ,  B01J31/0201 ,  B01J31/0202 ,  B01J31/183 ,  B01J31/184 ,  B01J31/22 ,  B01J31/2217 ,  B01J31/2243 ,  B01J2231/14 ,  B01J2531/0238 ,  B01J2531/025 ,  B01J2531/0252 ,  B01J2531/845 ,  C08G18/44 ,  C08G64/0208 ,  C08G64/0216 ,  C08G65/2603 ,  C08G65/266 ,  Y02P20/52

    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 one or more sites capable of initiating copolymerization of epoxides and CO2, wherein the chain transfer agent contains one or more masked hydroxyl groups. 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, a high percentage of carbonate linkages, and substantially all polycarbonate chains having hydroxyl end groups have no embedded chain transfer agent.

    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 具有能够引发环氧化物和CO 2共聚的一个或多个位点，其中链转移剂含有一个或多个掩蔽的羟基。 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，高百分比的碳酸酯键，并且基本上所有具有羟基端基的聚碳酸酯链都没有嵌入链转移剂 。