Preparation of polyesters using lithium titanyl oxalate polycondensation catalysts
    1.
    发明公开
    Preparation of polyesters using lithium titanyl oxalate polycondensation catalysts 有权
    使用草酸锂氧钛缩聚催化剂制备聚酯

    公开(公告)号:EP0970983A3

    公开(公告)日:2000-07-12

    申请号:EP99305401.4

    申请日:1999-07-07

    CPC classification number: C08G63/85

    Abstract: This invention relates to a method for manufacturing polyesters, in particular, to using a lithium titanyl oxalate as the catalyst for such reaction to provide fast reactions with excellent color properties for the resulting polyester. The present invention provides an improved method of producing polyester by the polycondensation of polyester forming reactants wherein the improvement comprises utilizing, as the polycondensation catalyst, lithium titanyl oxalate. The improved process produces a polyester of improved color verses other titanyl oxalate catalysts and a novel polyester without the presence of antimony.

    Abstract translation: 本发明涉及制造聚酯的方法,特别是使用草酸锂钛氧烷作为用于该反应的催化剂,以提供对所得聚酯具有优异颜色性质的快速反应。 本发明提供了一种通过聚酯形成反应物的缩聚生产聚酯的改进方法,其中改进包括使用草酸锂氧钛作为缩聚催化剂。 改进的方法产生改进颜色的聚酯与其它草酸氧钛催化剂和不含锑存在的新型聚酯。

    Preparation of polyesters using lithium titanyl oxalate polycondensation catalysts
    2.
    发明公开
    Preparation of polyesters using lithium titanyl oxalate polycondensation catalysts 有权
    天竺葵on on on oren oren oren oren oren oren oren oren oren oren oren oren oren oren oren oren oren oren oren oren

    公开(公告)号:EP0970983A2

    公开(公告)日:2000-01-12

    申请号:EP99305401.4

    申请日:1999-07-07

    CPC classification number: C08G63/85

    Abstract: This invention relates to a method for manufacturing polyesters, in particular, to using a lithium titanyl oxalate as the catalyst for such reaction to provide fast reactions with excellent color properties for the resulting polyester. The present invention provides an improved method of producing polyester by the polycondensation of polyester forming reactants wherein the improvement comprises utilizing, as the polycondensation catalyst, lithium titanyl oxalate. The improved process produces a polyester of improved color verses other titanyl oxalate catalysts and a novel polyester without the presence of antimony.

    Abstract translation: 本发明涉及一种制造聚酯的方法,特别是使用草酸氧钛锂作为这种反应的催化剂,为所得聚酯提供具有优异颜色特性的快速反应。 本发明提供通过聚酯成型反应物的缩聚制备聚酯的改进方法,其中改进包括利用作为缩聚催化剂的草酸氧钛锂。 改进的方法产生与其它氧化钛草酸酯催化剂相比改进颜色的聚酯和不存在锑的新型聚酯。

    Heterogeneous organotin catalysts
    3.
    发明公开
    Heterogeneous organotin catalysts 有权
    异源生物有机产物

    公开(公告)号:EP0937728A2

    公开(公告)日:1999-08-25

    申请号:EP98307882.5

    申请日:1998-09-29

    Abstract: This invention provides: (a) new organotin functionalized silanes: (b) a solid prepared by chemically bonding organotin functionalized silanes to a solid inorganic support containing surface hydroxy groups: (c) a solid catalyst prepared from said supported organotin functionalized silane; (d) a process for conducting esterification or transesterification, and urethane, urea, silicone, and amino forming reaction utilizing said solid supported catalyst; (e) a process of separating the solid supported catalyst from the reaction products employing ligand - solid separation techniques; (f) reuse of the solid supported catalyst after being separated from the reaction products; (g) a continuous esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction comprising passing reactants for a esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction reaction through a reactor containing a catalytically effective amount of said solid supported catalyst to form esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction products in said reactor and removing said reaction products from said reactor; and (h) esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction products produced with said solid, supported, tin-containing catalyst and said reaction products containing less than 100ppm tin by weight; and (i) the synthesis of organotin silanes with and without a Lewis acid.

    Abstract translation: 本发明提供:(a)新的有机锡官能化硅烷:(b)通过将有机锡官能化硅烷化学键合到含有表面羟基的固体无机载体制备的固体:(c)由所述负载的有机锡官能化硅烷制备的固体催化剂; (d)使用所述固体负载型催化剂进行酯化或酯交换的方法和氨基甲酸酯,脲,硅氧烷和氨基形成反应; (e)使用配体 - 固体分离技术将固体负载型催化剂与反应产物分离的方法; (f)固体负载型催化剂在与反应产物分离后的再利用; (g)连续酯化或酯交换反应或氨基甲酸酯,尿素,硅氧烷或氨基形成反应或氨基甲酸酯,脲,硅氧烷或氨基形成反应,包括使反应物通过酯化或酯交换反应或氨基甲酸酯,脲,硅氧烷或氨基形成 反应或氨基甲酸酯,尿素,硅氧烷或氨基形成反应,或通过含有催化有效量的所述固体负载型催化剂的反应器的氨基甲酸酯,尿素,硅氧烷或氨基形成反应反应,以形成酯化或酯交换反应或氨基甲酸酯,尿素 ,硅氧烷或氨基形成反应,或在所述反应器中形成氨基甲酸酯,脲,硅氧烷或氨基反应产物并从所述反应器中除去所述反应产物; 和(h)酯化或酯交换反应或由所述固体,负载的含锡催化剂和所述反应产物生成的氨基甲酸酯,脲,硅氧烷或氨基形成反应或氨基甲酸酯,脲,硅氧烷或氨基形成反应产物,所述反应产物含有少于 100ppm锡重量; 和(i)有和没有路易斯酸的有机锡硅烷的合成。

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