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    CHROMATOGRAPHY OF POLYOLEFIN POLYMERS
    2.
    发明申请
    CHROMATOGRAPHY OF POLYOLEFIN POLYMERS 有权
    聚烯烃聚合物的色谱法

    公开(公告)号：US20120227469A1

    公开(公告)日：2012-09-13

    申请号：US13512387

    申请日：2010-12-21

    申请人： William L. Winniford ,  Rongjuan Cong ,  Theodore M. Stokich, JR. ,  Randy J. Pell ,  Matthew D. Miller ,  Abhishek Roy ,  Freddy Van Damme ,  Alexander W. Degroot ,  John W. Lyons ,  David M. Meunier

    发明人： William L. Winniford ,  Rongjuan Cong ,  Theodore M. Stokich, JR. ,  Randy J. Pell ,  Matthew D. Miller ,  Abhishek Roy ,  Freddy Van Damme ,  Alexander W. Degroot ,  John W. Lyons ,  David M. Meunier

    IPC分类号： G01N30/06

    CPC分类号： B01D15/161 ,  B01D15/166 ,  B01D15/1878 ,  B01J20/24 ,  B01J2220/4825 ,  G01N30/34 ,  G01N2030/3076 ,  G01N2030/885

    摘要： The invention provides a method for one-dimensional chromatography of a polyolefin polymer, comprising introducing a solution of the polyolefin polymer into a liquid flowing through a liquid chromatography stationary phase, the liquid chromatography stationary phase comprising graphitic carbon, and wherein the polyolefin polymer emerging from the liquid chromatography stationary phase has a retention factor greater than zero, and wherein the solution introduced into the liquid chromatography stationary phase is subjected to a temperature gradient, and/or the solution is subjected to a solvent gradient. The invention also provides a method for multi-dimensional chromatography of a polyolefin polymer, comprising introducing a solution of the polyolefin polymer into a liquid flowing through a first liquid chromatography stationary phase or a field flow fractionation device, and subsequently flowing the solution through a second liquid chromatography stationary phase, the second liquid chromatography stationary phase comprising graphitic carbon, and wherein the polyolefin polymer emerging from the liquid chromatography stationary phase has a retention factor greater than zero. The invention also provides an apparatus for polyolefin polymer chromatography, comprising a liquid chromatography stationary phase, the liquid chromatography stationary phase comprising graphitic carbon and at least one inert filler.

    摘要翻译： 本发明提供了聚烯烃聚合物的一维色谱法的方法，包括将聚烯烃聚合物的溶液引入流过液相色谱固定相的液体中，液相色谱固定相包含石墨碳，其中聚烯烃聚合物从 液相色谱固定相具有大于零的保留因子，其中引入液相色谱固定相的溶液经受温度梯度，和/或溶液经受溶剂梯度。 本发明还提供了聚烯烃聚合物的多维色谱法的方法，包括将聚烯烃聚合物的溶液引入流过第一液相色谱固定相或场流分离装置的液体中，随后使溶液流过第二 液相色谱固定相，第二液相色谱固定相包含石墨碳，其中从液相色谱固定相中出现的聚烯烃聚合物具有大于零的保留因子。 本发明还提供了一种用于聚烯烃聚合物色谱的装置，包括液相色谱固定相，液相色谱固定相包含石墨碳和至少一种惰性填料。

    Imide-Coupled Propylene-Based Polymer and Process
    7.
    发明申请
    Imide-Coupled Propylene-Based Polymer and Process 审中-公开
    酰亚胺基聚合物和工艺

    公开(公告)号：US20110009513A1

    公开(公告)日：2011-01-13

    申请号：US12831394

    申请日：2010-07-07

    申请人： Bharat I. Chaudhary ,  Rongjuan Cong ,  John Scott Parent

    发明人： Bharat I. Chaudhary ,  Rongjuan Cong ,  John Scott Parent

    IPC分类号： C08F255/00

    CPC分类号： C08F8/32 ,  C08F10/06

    摘要： Disclosed are propylene-based polymers with improved melt strength, improved strain hardening characteristics and processes for producing the same. The processes include reacting a polyamine with a maleic anhydride-grafted-propylene-based polymer. The processes produce a rheology-modified propylene-based polymer with long chain branching by forming a polyimide linkage which couples polymer chains of the propylene-based polymer. The polyimide-coupled propylene-based polymer exhibits improved melt strength and improved strain hardening characteristics.

    摘要翻译： 公开了具有改进的熔体强度，改进的应变硬化特性的丙烯基聚合物及其制备方法。 该方法包括使多胺与马来酸酐接枝丙烯基聚合物反应。 该方法通过形成聚合物连接而产生具有长链支化的流变改性的丙烯基聚合物，其聚合丙烯类聚合物的聚合物链。 聚酰亚胺结合的丙烯基聚合物表现出改进的熔体强度和改进的应变硬化特性。