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    CHROMATOGRAPHY OF POLYOLEFIN POLYMERS
    1.
    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。

    Method and apparatus for fiber optic backscattered light measurement to determine flow rates of multi-phase streams
    10.
    发明授权
    Method and apparatus for fiber optic backscattered light measurement to determine flow rates of multi-phase streams 失效
    用于光纤反向散射光测量的方法和装置，以确定多相流的流速

    公开(公告)号：US4978863A

    公开(公告)日：1990-12-18

    申请号：US240860

    申请日：1988-09-06

    申请人： John W. Lyons ,  John A. Roper, III ,  Peter D. Aldrich

    发明人： John W. Lyons ,  John A. Roper, III ,  Peter D. Aldrich

    IPC分类号： G01F1/708

    CPC分类号： G01F1/7086

    摘要： Flow rates of multi-phase streams may be determined by use of a fiber optic probe which establishes an illuminated sensing zone of finite dimensions. The probe collects light backscattered from the zone, the collected light being converted by a photodiode to voltage waveforms. Flow rate is determined by sampling voltage waveforms at discrete points in time, the sample being digitized and the digits being autocorrelated for such discrete points.

    摘要翻译： 可以通过使用建立有限尺寸的照明感测区域的光纤探针来确定多相流的流速。 探头从区域收集反向散射的光，所收集的光被光电二极管转换成电压波形。 流量通过在离散时间点采样电压波形来确定，样本被数字化，并且这些数字对于这样的离散点是自相关的。