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    Process for the continuous manufacture of poly-.epsilon.-caprolactones
    1.
    发明授权
    Process for the continuous manufacture of poly-.epsilon.-caprolactones 失效
    连续制造聚ε-己内酯的方法

    公开(公告)号：US5656718A

    公开(公告)日：1997-08-12

    申请号：US623815

    申请日：1996-03-29

    申请人： Henri Wautier ,  Lucienne Detournay ,  Martine Kaszacs

    发明人： Henri Wautier ,  Lucienne Detournay ,  Martine Kaszacs

    IPC分类号： C08G63/08 ,  C08G63/78 ,  C08G63/82 ,  C08G63/84

    CPC分类号： C08G63/823

    摘要： Poly-.epsilon.-caprolactones are produced by continuous polymerization of .epsilon.-caprolactone as a melt in an extruder (reactive extrusion) with the use, as polymerization initiator, of aluminium trialkoxides in which at least one alkoxy radical includes at least one other oxygen atom besides the oxygen atom constituting the aluminoxane (AI--O) bond. This oxygen atom is advantageously present in the form of an ester or ether functional group. These initiators are generally in the liquid state at ambient temperature and are furthermore miscible with .epsilon.-caprolactone, with the result that they can be used in the absence of solvent. The appropriate adjustment of the feed flow rates of .epsilon.-caprolactone and of initiator to the extruder permits the manufacture of custom-made poly-.epsilon.-caprolactones which have predesigned weight-average molecular masses.

    摘要翻译： 聚ε-己内酯通过在挤出机（反应性挤出）中作为熔体的ε-己内酯连续聚合而制备，其中使用三烷氧基铝作为聚合引发剂，其中至少一个烷氧基包括至少一个其它氧原子 构成铝氧烷（AI-O）键的氧原子。 该氧原子有利地以酯或醚官能团的形式存在。 这些引发剂通常在环境温度下处于液态，并且还可与ε-己内酯混溶，结果可以在不存在溶剂的情况下使用它们。 将ε-己内酯和引发剂的进料流速适当调整到挤出机允许制造具有预先设计的重均分子量的定制的聚ε-己内酯。

    Process for the storage stabilization of poly-.epsilon.-caprolactones
    2.
    发明授权
    Process for the storage stabilization of poly-.epsilon.-caprolactones 失效
    聚ε-己内酯的储存稳定化方法

    公开(公告)号：US06013710A

    公开(公告)日：2000-01-11

    申请号：US928624

    申请日：1997-09-12

    申请人： Henri Wautier ,  Martine Kaszacs

    发明人： Henri Wautier ,  Martine Kaszacs

    IPC分类号： C08K3/34 ,  C08F6/00 ,  C08K5/5415 ,  C08K5/5419 ,  C08L67/00 ,  C08K5/24

    CPC分类号： C08K5/5415

    摘要： Poly-.epsilon.-caprolactones produced by continuous melt polymerization of .epsilon.-caprolactone with the use of aluminium alkoxides are stabilized for storage by incorporation of an effective quantity of silicon derivative such as, for example, a silicon oxide, an inorganic silicate or a silicon alkoxide, preference being given to silicon alkoxides. This process has the effect of greatly limiting the gradual reduction in the inherent viscosity of the poly-.epsilon.-caprolactones in the course of time. In accordance with a preferred embodiment the incorporation of the silicon derivative is preceded by the incorporation of an effective quantity of water, and this further improves the storage stability of the poly-.epsilon.-caprolactones produced with the use of aluminium alkoxides.

    摘要翻译： 通过使用烷氧基铝将ε-己内酯的连续熔融聚合生产的聚ε-己内酯通过加入有效量的硅衍生物例如氧化硅，无机硅酸盐或硅烷醇盐而被稳定以进行储存 优选硅烷醇盐。 该方法具有大大限制聚ε-己内酯在时间上的特性粘度的逐渐降低的作用。 根据优选的实施方案，硅衍生物的引入之前是引入有效量的水，并且这进一步提高了使用烷氧化铝生产的聚ε-己内酯的储存稳定性。