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    A Process to Prepare a Cyclic Oligomer and a Cyclic Oligomer Obtainable Thereby
    5.
    发明申请
    A Process to Prepare a Cyclic Oligomer and a Cyclic Oligomer Obtainable Thereby 有权
    制备环状低聚物和由此获得的环状低聚物的方法

    公开(公告)号：US20160017093A1

    公开(公告)日：2016-01-21

    申请号：US14773480

    申请日：2013-11-27

    申请人： SULZER CHEMTECH AG

    发明人： Liborio Ivano Costa ,  Philip Nising ,  Francesca Tancini ,  David Pfister ,  Giuseppe Storti ,  Massimo Morbidelli

    IPC分类号： C08G63/91 ,  C08G63/16

    CPC分类号： C08G63/916 ,  C08G63/16 ,  C08G63/181 ,  C08G63/78

    摘要： A process to prepare a cyclic polyester oligomer composition comprising a cyclic polyester oligomer having furanic units is disclosed. The process comprises the step of reacting a monomer component in the presence of an optional catalyst and/or optional organic base in a ring closing oligomerization step under conditions of a reaction temperature and reaction time sufficient to yield a cyclic polyester oligomer having furanic units. The invention further relates to a cyclic polyester oligomer composition obtainable by said process, wherein the cyclic polyester oligomer composition comprises a cyclic polyester oligomer of structure Y1 or Y2 having furanic units, wherein the composition contains less than 5%, preferably 3, most preferably 1 weight % of linear oligomeric polyester species in the composition. The present invention further relates also to the use of said cyclic polyester oligomer composition in the production of a polyester polymer.

    摘要翻译： 公开了一种制备包含具有呋喃单元的环状聚酯低聚物的环状聚酯低聚物组合物的方法。 该方法包括在反应温度和反应时间足以产生具有呋喃单元的环状聚酯低聚物的条件下，在闭环低聚步骤的任选催化剂和/或任选的有机碱存在下使单体组分反应的步骤。 本发明还涉及通过所述方法获得的环状聚酯低聚物组合物，其中环状聚酯低聚物组合物包含具有呋喃单元的结构Y1或Y2的环状聚酯低聚物，其中组合物含有小于5％，优选3，最优选1 组合物中线性低聚物种的重量百分比。 本发明还涉及所述环状聚酯低聚物组合物在聚酯聚合物的制备中的用途。