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    Analysis method
    1.
    发明申请
    Analysis method 失效
    分析方法

    公开(公告)号：US20050158864A1

    公开(公告)日：2005-07-21

    申请号：US10758900

    申请日：2004-01-16

    申请人： Patrick Brant ,  Burkhard Endeward ,  Hans Thomann ,  Yuan-Ju Chen ,  Terry Burkhardt

    发明人： Patrick Brant ,  Burkhard Endeward ,  Hans Thomann ,  Yuan-Ju Chen ,  Terry Burkhardt

    IPC分类号： C08F4/659 ,  C08F10/00 ,  G01N21/27 ,  G01N21/64 ,  G01N31/10

    CPC分类号： G01N21/6408 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  G01N21/274 ,  G01N2201/127 ,  Y10S502/522 ,  C08F4/65927

    摘要： Disclosed herein is a method for determining the presence of an activated catalyst site in a catalyst system comprising a catalyst precursor and an activator, wherein the catalyst system is capable of providing a luminescence, the method comprising: performing a time resolved luminescence analysis on a reference analyte comprising the catalyst precursor that is not in combination with the activator, and performing a time resolved luminescence analysis on a sample analyte comprising the catalyst precursor in combination with the activator, determining a reference emission energy and a reference lifetime each associated with a maximum emission intensity in the reference output values; determining a sample emission energy and a sample lifetime each associated with a maximum emission intensity in the sample output values; and comparing the values to determine if the sample comprises an activated catalyst site. Use of the above method in relation to an activation index is also disclosed.

    摘要翻译： 本文公开了一种用于确定催化剂体系中活化催化剂位点的存在的方法，其包括催化剂前体和活化剂，其中所述催化剂体系能够提供发光，所述方法包括：对参考物进行时间分辨发光分析 分析物，其包含不与活化剂组合的催化剂前体，并且对包含催化剂前体的样品分析物与活化剂组合进行时间分辨发光分析，确定参考发射能量和参考寿命，每个与最大发射相关联 参考输出值的强度; 确定每个与样本输出值中的最大发射强度相关联的样本发射能量和采样寿命; 并比较这些值以确定样品是否包含活化的催化剂位点。 还公开了关于活化指数的上述方法的使用。

    Process of producing thermoplastic polymer blends
    6.
    发明申请
    Process of producing thermoplastic polymer blends 有权
    生产热塑性聚合物共混物的方法

    公开(公告)号：US20070015877A1

    公开(公告)日：2007-01-18

    申请号：US11446794

    申请日：2006-06-05

    申请人： Terry Burkhardt ,  Aspy Mehta

    发明人： Terry Burkhardt ,  Aspy Mehta

    IPC分类号： C08L23/04

    CPC分类号： C08L23/12 ,  C08L23/10 ,  C08L23/14 ,  C08L23/142 ,  C08L2205/02 ,  C08L2666/06

    摘要： A process is described for producing a polymer blend comprising (a) a first polymer component comprising a crystalline propylene polymer and (b) a second polymer component comprising a copolymer of propylene with at least one comonomer, wherein the copolymer comprises between about 7 wt % and about 28 wt % of comonomer and the copolymer has a heat of fusion of 0.5 to 70 J/g and an mm triad tacticity of 75% or greater. The process comprises polymerizing propylene under first polymerization conditions in a polymerization reaction zone to produce a first effluent comprising a crystalline propylene polymer containing no more than 10% by weight of other monomers, the first polymerization conditions comprising a first reaction temperature between about 50° C. and about 100° C. Propylene is then copolymerized with at least one comonomer under second polymerization conditions in the presence of a metallocene catalyst and at least part of said first effluent in a slurry polymerization reaction zone to produce the second polymer component as a blend with the first polymer component, the second polymerization conditions comprising a second reaction temperature at least 7° C. less than the first reaction temperature.

    摘要翻译： 描述了一种制备聚合物共混物的方法，其包含（a）包含结晶丙烯聚合物的第一聚合物组分和（b）包含丙烯与至少一种共聚单体的共聚物的第二聚合物组分，其中所述共聚物包含约7重量％ 和约28重量％的共聚单体，共聚物的熔融热为0.5〜70J / g，mm三元组立构规整度为75％以上。 该方法包括在聚合反应区中在第一聚合条件下聚合丙烯以产生包含不超过10重量％的其它单体的结晶丙烯聚合物的第一流出物，第一聚合条件包括约50℃的第一反应温度 然后约100℃。然后，丙烯在第二聚合条件下，在茂金属催化剂和至少部分所述第一流出物在淤浆聚合反应区中的存在下，与至少一种共聚单体共聚以产生作为共混物的第二聚合物组分 与第一聚合物组分相比，第二聚合条件包括比第一反应温度低至少7℃的第二反应温度。