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13 条记录 (耗时 0.035 秒)

    Polymerization process
    6.
    发明授权
    Polymerization process 失效
    聚合过程

    公开(公告)号：US07799882B2

    公开(公告)日：2010-09-21

    申请号：US11628165

    申请日：2005-06-20

    申请人： Peijun Jiang ,  John Richard Shutt ,  Charles Stanley Speed ,  Robert Olds Hagerty ,  Pradeep P. Shirodkar

    发明人： Peijun Jiang ,  John Richard Shutt ,  Charles Stanley Speed ,  Robert Olds Hagerty ,  Pradeep P. Shirodkar

    IPC分类号： C08F2/14 ,  C08F110/06

    CPC分类号： C08F10/00 ,  C08F4/65908 ,  C08F4/65912 ,  C08F10/06 ,  C08F210/06 ,  C08F2/14 ,  C08F4/65927 ,  C08F2/06 ,  C08F210/16 ,  C08F2500/03 ,  C08F2500/20 ,  C08F2500/12

    摘要： This invention relates to a multiple phase polymerization process to produce polyolefins comprising contacting olefins and a homogeneous catalyst or catalyst system at a temperature between the melting point of the dry polymer and 80° C. below the melting point of the dry polymer in the presence of a fluorinated hydrocarbon. This invention also relates to a process to produce polyethylene comprising contacting a homogeneous catalyst or catalyst system with ethylene and from 0 to 40 weight % of one or more C3 to C40 olefin comonomer(s) in the presence of a fluorinated hydrocarbon and optionally a hydrocarbon solvent at a temperature below the reaction medium melting point. This invention also relates to a process to produce polypropylene comprising contacting a homogeneous catalyst or catalyst system with propylene and from 0 to 50 weight % of one or more of ethylene and C4 to C40 olefin comonomer(s) in the presence of a fluorinated hydrocarbon and optionally a hydrocarbon solvent at a temperature below the reaction medium melting point.

    摘要翻译： 本发明涉及生产聚烯烃的多相聚合方法，包括使烯烃和均相催化剂或催化剂体系在干聚合物的熔点和低于干聚合物熔点的80℃之间的温度下，在存在 氟化烃。 本发明还涉及一种生产聚乙烯的方法，其包括使均相催化剂或催化剂体系与乙烯和0至40重量％的一种或多种C 3至C 40烯烃共聚单体在氟化烃和任选的烃 溶剂在低于反应介质熔点的温度下进行。 本发明还涉及生产聚丙烯的方法，包括在氟化烃存在下使均相催化剂或催化剂体系与丙烯和0至50重量％的一种或多种乙烯和C 4至C 40烯烃共聚单体接触， 任选的烃溶剂在低于反应介质熔点的温度下。

    Polymerization process
    7.
    发明授权
    Polymerization process 失效
    聚合过程

    公开(公告)号：US07414100B2

    公开(公告)日：2008-08-19

    申请号：US11628166

    申请日：2005-06-20

    申请人： Peijun Jiang ,  John Richard Shutt ,  Charles Stanley Speed ,  Randall B. Laird ,  Kevin Bruce Stavens ,  Robert Olds Hagerty

    发明人： Peijun Jiang ,  John Richard Shutt ,  Charles Stanley Speed ,  Randall B. Laird ,  Kevin Bruce Stavens ,  Robert Olds Hagerty

    IPC分类号： C08F2/06 ,  C08F6/06 ,  C08F10/02

    CPC分类号： C08F210/16 ,  C08F2/002 ,  C08F2/06 ,  C08F210/06 ,  C08F2500/03 ,  C08F2500/20

    摘要： This invention relates to a process to increase the amount of polymer solute in a polymerization medium or effluent comprising introducing a fluorocarbon into the polymerization medium or effluent in an amount effective to increase the amount of polymer solute in the polymerization medium or effluent by at least 3% without causing precipitation of polymer solute from the polymerization medium or effluent, as compared to the same polymerization medium or effluent without the fluorocarbon present. This invention also relates to a process to reduce the viscosity of a polymerization medium or effluent comprising introducing a fluorocarbon into the polymerization medium or effluent in an amount effective to reduce the viscosity of the polymerization medium or effluent by at least 3% without causing precipitation of polymer solute from the polymerization medium or effluent, as compared to the same polymerization medium or effluent without the fluorocarbon present.

    摘要翻译： 本发明涉及一种增加聚合介质或流出物中聚合物溶质量的方法，包括将碳氟化合物引入聚合介质或流出物中，其量有效地将聚合介质或流出物中聚合物溶质的量增加至少3 ％，而不会导致聚合物溶质从聚合介质或流出物中沉淀，与不存在碳氟化合物的相同聚合介质或流出物相比。 本发明还涉及降低聚合介质或流出物的粘度的方法，包括将碳氟化合物引入聚合介质或流出物中，其量可有效地降低聚合介质或流出物的粘度至少3％而不引起沉淀 与不存在碳氟化合物的相同聚合介质或流出物相比，来自聚合介质或流出物的聚合物溶质。