PROCESS FOR PREPARING MERCAPTOALKYL CARBOXYLATES
    17.
    发明申请
    PROCESS FOR PREPARING MERCAPTOALKYL CARBOXYLATES 有权
    制备羧甲基纤维素的方法

    公开(公告)号:US20130217912A1

    公开(公告)日:2013-08-22

    申请号:US13591398

    申请日:2012-08-22

    IPC分类号: C07C319/12

    摘要: In the acid-catalyzed esterification of mercaptoalkyl alcohols by means of carboxylic acids to form mercaptoalkly carboxylates, formation of undesirable, usually sparingly soluble by-products usually occurs. The process of the invention in the absence of acid catalysts avoids the formation of such by-products. Particularly when the esterification of the invention is carried out as reactive distillation using reactive column and residence vessel, good degrees of conversion can also be obtained without acid catalyst and at the same time the formation of the by-products can be largely avoided.

    摘要翻译: 在巯基烷基醇通过羧酸进行酸催化酯化形成巯基羧酸酯时,通常会发生不期望的,通常微溶的副产物。 在没有酸催化剂的情况下,本发明的方法避免了这种副产物的形成。 特别是当本发明的酯化作为使用反应性柱和驻留容器的反应蒸馏进行时,也可以在没有酸催化剂的情况下获得良好的转化率,同时可以大大地避免副产物的形成。

    Polymerization Catalyst Compositions Containing Metallocene Complexes and Polymers Produced by Using the Same
    19.
    发明申请
    Polymerization Catalyst Compositions Containing Metallocene Complexes and Polymers Produced by Using the Same 有权
    含有茂金属络合物和使用其的聚合物的聚合催化剂组合物

    公开(公告)号:US20070232758A1

    公开(公告)日:2007-10-04

    申请号:US11631381

    申请日:2005-07-01

    IPC分类号: C08F4/72 B01J31/22 C08F4/00

    摘要: The present invention provides a novel catalyst composition comprising a metallocene complex, and a novel producing method for various polymer compounds. Preferably, the invention provides a novel polymer compound, and a producing method thereof. Specifically, the invention provides a polymerization catalyst composition, comprising: (1) a metallocene complex represented by the general formula (I), including: a central metal M which is a group III metal atom or a lanthanoid metal atom; a ligand Cp* bound to the central metal and including a substituted or unsubstituted cyclopentadienyl derivative; monoanionic ligands Q1 and Q2; and w neutral Lewis base L; and (2) an ionic compound composed of a non-ligand anion and a cation: where w represents an integer of 0 to 3.

    摘要翻译: 本发明提供了包含茂金属络合物的新型催化剂组合物和用于各种聚合物化合物的新型制备方法。 优选地,本发明提供了一种新的高分子化合物及其制备方法。 具体地说,本发明提供了一种聚合催化剂组合物,其包括:(1)由通式(I)表示的茂金属络合物,包括:作为III族金属原子或镧系金属原子的中心金属M; 配体Cp *与中心金属结合并包含取代或未取代的环戊二烯基衍生物; 单阴离子配位体Q 1和Q 2; 和中性路易斯碱L; 和(2)由非配体阴离子和阳离子组成的离子化合物:其中w表示0-3的整数。

    POLYMERIZATION CATALYST COMPOSITIONS CONTAINING METALLOCENE COMPLEXES AND POLYMERS PRODUCED BY USING THE SAME
    20.
    发明申请
    POLYMERIZATION CATALYST COMPOSITIONS CONTAINING METALLOCENE COMPLEXES AND POLYMERS PRODUCED BY USING THE SAME 失效
    含有金属络合物的聚合催化剂组合物和使用它们的聚合物

    公开(公告)号:US20120277387A1

    公开(公告)日:2012-11-01

    申请号:US13543158

    申请日:2012-07-06

    摘要: The present invention provides a novel catalyst composition comprising a metallocene complex, and a novel producing method for various polymer compounds. Preferably, the invention provides a novel polymer compound, and a producing method thereof. Specifically, the invention provides a polymerization catalyst composition, comprising: (1) a metallocene complex represented by the general formula (I), including: a central metal M which is a group III metal atom or a lanthanoid metal atom; a ligand Cp* bound to the central metal and including a substituted or unsubstituted cyclopentadienyl derivative; monoanionic ligands Q1 and Q2; and w neutral Lewis base L; and (2) an ionic compound composed of a non-ligand anion and a cation: where w represents an integer of 0 to 3.

    摘要翻译: 本发明提供了包含茂金属络合物的新型催化剂组合物和用于各种聚合物化合物的新型制备方法。 优选地,本发明提供了一种新的高分子化合物及其制备方法。 具体地说,本发明提供了一种聚合催化剂组合物,其包括:(1)由通式(I)表示的茂金属络合物,包括:作为III族金属原子或镧系金属原子的中心金属M; 配体Cp *与中心金属结合并包含取代或未取代的环戊二烯基衍生物; 单阴离子配体Q1和Q2; 和中性路易斯碱L; 和(2)由非配体阴离子和阳离子组成的离子化合物:其中w表示0-3的整数。