Ethylene-Propylene Copolymer Compositions and Methods of Making and Using Same
    2.
    发明申请
    Ethylene-Propylene Copolymer Compositions and Methods of Making and Using Same 审中-公开
    乙烯 - 丙烯共聚物组合物及其制备和使用方法

    公开(公告)号:US20080114142A1

    公开(公告)日:2008-05-15

    申请号:US11936908

    申请日:2007-11-08

    IPC分类号: C08F10/06

    摘要: An ethylene-propylene copolymer having a cold xylene solubles weight percent greater than twice the magnitude of the ethylene content wherein the ethylene content is measured by C13-NMR and having less than about 30% of the cold xylene solubles fraction having a log weight average chain length of less than about 1000 wherein the weight average chain length is measured by gel permeation chromatography. A method of producing a copolymer comprising contacting comonomers with a catalyst system in a reaction zone under conditions suitable for the formation of a copolymer wherein the catalyst system comprises at least two external donors and wherein the copolymer has a cold xylene solubles weight percent greater than twice the magnitude of the ethylene content wherein the ethylene content is measure by C13-NMR and having less than about 30% of the cold xylene solubles fraction having a log weight average chain length of less than about 1000 wherein the weight average chain length is measured by gel permeation chromatography.

    摘要翻译: 乙烯 - 丙烯共聚物的冷二甲苯可溶物重量百分比大于乙烯含量的两倍,其中乙烯含量通过C 13-NMR测量并且具有小于约30%的具有对数重量平均链的冷二甲苯可溶物部分 长度小于约1000,其中通过凝胶渗透色谱法测量重均链长。 一种制备共聚物的方法,其包括使共聚单体与反应区中的催化剂体系在适于形成共聚物的条件下接触,其中所述催化剂体系包含至少两个外部供体,其中所述共聚物的冷二甲苯可溶物重量百分比大于两倍 乙烯含量的大小,其中乙烯含量通过C 13 -MR测量并且具有小于约30%的对数重均链长小于约1000的冷二甲苯可溶物部分,其中重均链长度通过 凝胶渗透色谱法。

    PROPYLENE-BASED BLOCK COPOLYMER PARTICLES
    4.
    发明申请
    PROPYLENE-BASED BLOCK COPOLYMER PARTICLES 审中-公开
    丙烯基嵌段共聚物颗粒

    公开(公告)号:US20090234076A1

    公开(公告)日:2009-09-17

    申请号:US12402550

    申请日:2009-03-12

    申请人: Kenichiro Yada

    发明人: Kenichiro Yada

    IPC分类号: C08L23/16

    摘要: Propylene-based block copolymer particles in accordance with the present invention are obtained by copolymerizing ethylene and propylene to form an ethylene-propylene copolymer in the presence of propylene polymer particles. The ratio of the intrinsic viscosity ηA of a 20° C. xylene-soluble component of the copolymer particles to the intrinsic viscosity ηB of a 20° C. xylene-insoluble component of the copolymer particles, ηA/ηB, is 2.9 to 7.5. The content of the ethylene-propylene copolymer is 5 to 50 wt. % on the basis of the total weight of the block copolymer particles. The ethylene content of the ethylene-propylene copolymer is 20 to 55 wt. % on the basis of the weight of the ethylene-propylene copolymer. The standard deviation of the ethylene contents of the individual block copolymer particles is less than 7.

    摘要翻译: 根据本发明的丙烯基嵌段共聚物颗粒通过在丙烯聚合物颗粒的存在下共聚乙烯和丙烯以形成乙烯 - 丙烯共聚物而获得。 共聚物颗粒的20℃二甲苯可溶组分的特性粘度etaA与共聚物颗粒的20℃二甲苯不溶性组分的特性粘度etaB的比值etaA / etaB为2.9至7.5。 乙烯 - 丙烯共聚物的含量为5〜50重量%。 基于嵌段共聚物颗粒的总重量。 乙烯 - 丙烯共聚物的乙烯含量为20〜55wt。 基于乙烯 - 丙烯共聚物的重量。 单个嵌段共聚物颗粒的乙烯含量的标准偏差小于7。