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    Method of Determining a Relative Decrease in Catalytic Efficacy of a Catalyst in a Catalyst solution
    4.
    发明申请
    Method of Determining a Relative Decrease in Catalytic Efficacy of a Catalyst in a Catalyst solution 有权

    公开(公告)号：US20210122846A1

    公开(公告)日：2021-04-29

    申请号：US16617390

    申请日：2018-06-01

    申请人： Univation Technologies, LLC

    发明人： Ian M. Munro ,  C. Jeff Harlan

    IPC分类号： C08F10/14

    摘要： The present disclosure provides a method of determining a relative decrease in catalytic efficacy of a catalyst in a test sample of a catalyst solution with unknown catalytic activity. The method includes (a) mixing the test sample with a test solvent to form a test mixture and (b) measuring the increase in the temperature of the test mixture at predetermined time intervals immediately after forming the test mixture. A predetermined feature is used to determine both a test value in the increase in temperature measured in (b) and a control value in a known increase in temperature of a control mixture of the test solvent with a control sample of a control catalyst solution. The relative decrease in catalytic efficacy of the catalyst in the test sample having the unknown catalytic activity is then determined from: Relative Decrease in Catalytic Efficacy=Control Value−Test Value/Control Value

    Producing polyolefin products
    5.
    发明授权
    Producing polyolefin products 有权

    公开(公告)号：US10604606B2

    公开(公告)日：2020-03-31

    申请号：US16269780

    申请日：2019-02-07

    申请人： Univation Technologies, LLC

    发明人： Francis C. Rix ,  Ching-Tai Lue ,  Timothy M. Boller ,  Garth R. Giesbrecht ,  C. Jeff Harlan

    IPC分类号： C08F210/16 ,  C08F4/659 ,  C07F17/00 ,  C08J5/18 ,  C08F210/02 ,  C08F4/76 ,  C08F2/00 ,  C08F2/34 ,  C08L23/08 ,  C08F210/14 ,  C08F210/08 ,  C08F4/6592

    摘要： Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bPDI) map. The polydispersity map is generated by generating a number of polymers for at least two catalysts. Each polymer is generated at a different hydrogen to ethylene ratio. At least one catalyst generates a higher molecular weight polymer and another catalyst generates a lower molecular weight polymer. A molecular weight for each polymer is measured. The relationship between the molecular weight of the polymers generated by each of the catalysts and the ratio of hydrogen to ethylene is determined. A family of bPDI curves for polymers that would be made using a number of ratios of a blend of the at least two catalysts for each of a number of ratios of hydrogen to ethylene. A ratio for the catalyst blend of the catalysts that generates a polymer having a bPDI that matches a polymer fabrication process is selected, and the product specific polyolefin is made using the catalyst blend.

    PRODUCING POLYOLEFIN PRODUCTS
    8.
    发明申请
    PRODUCING POLYOLEFIN PRODUCTS 有权
    生产聚烯烃产品

    公开(公告)号：US20170008983A1

    公开(公告)日：2017-01-12

    申请号：US15117816

    申请日：2015-02-10

    申请人： UNIVATION TECHNOLOGIES, LLC

    发明人： Francis C. Rix ,  Ching-Tai Lue ,  Timothy M. Boller ,  Garth R. Giesbrecht ,  C. Jeff Harlan

    IPC分类号： C08F210/02

    CPC分类号： C08F210/16 ,  C07F17/00 ,  C08F2/00 ,  C08F2/34 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F4/65927 ,  C08F4/76 ,  C08F210/02 ,  C08F210/08 ,  C08F210/14 ,  C08F2410/02 ,  C08F2420/00 ,  C08F2420/01 ,  C08F2500/01 ,  C08F2500/02 ,  C08F2500/08 ,  C08F2500/09 ,  C08F2500/10 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/13 ,  C08F2500/18 ,  C08F2800/20 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/0815 ,  C08F2500/03

    摘要： Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bPDI) map. The polydispersity map is generated by generating a number of polymers for at least two catalysts. Each polymer is generated at a different hydrogen to ethylene ratio. At least one catalyst generates a higher molecular weight polymer and another catalyst generates a lower molecular weight polymer. A molecular weight for each polymer is measured. The relationship between the molecular weight of the polymers generated by each of the catalysts and the ratio of hydrogen to ethylene is determined. A family of bPDI curves for polymers that would be made using a number of ratios of a blend of the at least two catalysts for each of a number of ratios of hydrogen to ethylene. A ratio for the catalyst blend of the catalysts that generates a polymer having a bPDI that matches a polymer fabrication process is selected, and the product specific polyolefin is made using the catalyst blend.

    摘要翻译： 描述了用于制造和使用催化剂体系的催化剂体系和方法。 一种方法包括使用共混多分散指数（bPDI）图选择催化剂共混物。 通过产生用于至少两种催化剂的多种聚合物来产生多分散性图。 每个聚合物以不同的氢气与乙烯的比例产生。 至少一种催化剂产生较高分子量的聚合物，另一种催化剂产生较低分子量的聚合物。 测量每种聚合物的分子量。 确定由各催化剂产生的聚合物的分子量与氢与乙烯的比例之间的关系。 对于聚合物的一组bPDI曲线，其将使用多种比例的氢与乙烯的比例的至少两种催化剂的共混物来制备。 选择产生具有与聚合物制造工艺匹配的bPDI的聚合物的催化剂的催化剂共混物的比例，并且使用催化剂共混物制备产品特定聚烯烃。

    Method of determining a relative decrease in catalytic efficacy of a catalyst in a catalyst solution
    9.
    发明授权
    Method of determining a relative decrease in catalytic efficacy of a catalyst in a catalyst solution 有权

    公开(公告)号：US11203651B2

    公开(公告)日：2021-12-21

    申请号：US16617390

    申请日：2018-06-01

    申请人： Univation Technologies, LLC

    发明人： Ian M. Munro ,  C. Jeff Harlan

    IPC分类号： C08F10/14 ,  G01N25/48 ,  C08F2/06 ,  C08F4/76

    摘要： The present disclosure provides a method of determining a relative decrease in catalytic efficacy of a catalyst in a test sample of a catalyst solution with unknown catalytic activity. The method includes (a) mixing the test sample with a test solvent to form a test mixture and (b) measuring the increase in the temperature of the test mixture at predetermined time intervals immediately after forming the test mixture. A predetermined feature is used to determine both a test value in the increase in temperature measured in (b) and a control value in a known increase in temperature of a control mixture of the test solvent with a control sample of a control catalyst solution. The relative decrease in catalytic efficacy of the catalyst in the test sample having the unknown catalytic activity is then determined from: Relative Decrease in Catalytic Efficacy=Control Value−Test Value/Control Value.