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    • 9. 发明申请
    • A POLYOLEFIN COMPOSITION AND METHOD OF PRODUCING THE SAME
    • 聚烯烃组合物及其制造方法
    • US20160340453A1
    • 2016-11-24
    • US15025366
    • 2014-10-30
    • DOW GLOBAL TECHNOLOGIES LLC
    • Linfeng ChenStephanie M. WhitedRobert J. Jorgensen
    • C08F210/16
    • C08F210/16C08F210/14C08F4/6494C08F4/6543
    • The instant invention provides a polyolefin composition, a catalyst composition, and a method of producing the same. The method for polymerizing one or more polyolefins according to the present invention comprises the steps of: (1) selecting a first olefin monomer and optionally one or more alpha-olefin comonomers; (2) selecting one or more catalyst systems comprising one or more procatalysts comprising a first metal selected from the group consisting of Ti, V, Hf, Zr, and combinations or mixture two or more thereof, one or more cocatalysts comprising Al, and one or more self-limiting agents (SLA) selected from the group consisting of polyether, polyester, and combinations or mixtures thereof; wherein the ratio of said SLA to said first metal (SLA:first metal) is from 0.1:1 to 30:1; (3) polymerizing said first olefin monomer and optionally one or more alpha-olefin comonomers in the presence of said one or more catalyst systems via a slurry polymerization process or gas-phase polymerization process in one or more reactors; (4) thereby producing one or more olefin-based polymers; (5) wherein said catalyst system has a loss of least 85 percent of catalyst activity when the temperature is increased from 85 to 110° C.
    • 本发明提供一种聚烯烃组合物,催化剂组合物及其制备方法。 根据本发明的聚合一种或多种聚烯烃的方法包括以下步骤:(1)选择第一烯烃单体和任选的一种或多种α-烯烃共聚单体; (2)选择一种或多种催化剂体系,其包含一种或多种前催化剂,其包含选自Ti,V,Hf,Zr的第一金属,以及其组合或混合物两种或多种,​​一种或多种包含Al的助催化剂和一种 或更多的选自聚醚,聚酯及其组合或混合物的自限制剂(SLA); 其中所述SLA与所述第一金属(SLA:第一金属)的比例为0.1:1至30:1; (3)通过在一个或多个反应器中的淤浆聚合方法或气相聚合方法在所述一种或多种催化剂体系的存在下将所述第一烯烃单体和任选的一种或多种α-烯烃共聚单体聚合; (4),从而制备一种或多种烯烃基聚合物; (5)其中当温度从85℃升至110℃时,所述催化剂体系具有至少85%的催化剂活性损耗。
    • 10. 发明申请
    • METHOD FOR PRODUCING ONE OR MORE ETHYLENE-BASED POLYMERS
    • 生产一种或多种基于乙烯的聚合物的方法
    • US20160369019A1
    • 2016-12-22
    • US14902128
    • 2014-08-18
    • DOW GLOBAL TECHNOLOGIES LLC
    • Linfeng ChenRobert J. JorgensenStephanie M. Whited
    • C08F210/16
    • C08F210/16C08F2/40C08F2/38C08F4/6494C08F4/6543C08F4/025C08F210/14C08F2/34C08F2/14
    • The instant invention provides a method for polymerizing one or more ethylene-based polymers. The method for polymerizing one or more ethylene-based polymers according to the present invention comprises the following steps: (1) selecting ethylene and optionally one or more alpha-olefm comonomers; (2) selecting one or more catalyst systems comprising one or more procatalysts comprising Ti, one or more cocatalysts comprising Al, and one or more self-limiting agents (SLA); wherein the ratio of SLA to Ti is from 5:1 to 40:1 and the ratio of Al to SLA is from 2:1 to 40:1; (3) polymerizing said ethylene and optionally one or more alpha-olefm comonomers in the presence of said one or more catalyst systems via a slurry polymerization process or gas-phase polymerization process in one or more reactors; (4) thereby producing one or more ethylene; wherein said catalyst system has a loss of least 85% of catalyst productivity when the temperature is increased from 85 to 115 C.
    • 本发明提供了聚合一种或多种基于乙烯的聚合物的方法。 根据本发明聚合一种或多种基于乙烯的聚合物的方法包括以下步骤:(1)选择乙烯和任选的一种或多种α-烯烃共聚单体; (2)选择一种或多种催化剂体系,其包含一种或多种前催化剂,其包含Ti,一种或多种包含Al的助催化剂和一种或多种自限制剂(SLA); 其中SLA与Ti的比例为5:1至40:1,Al与SLA的比例为2:1至40:1; (3)在所述一种或多种催化剂体系的存在下,通过在一个或多个反应器中的淤浆聚合方法或气相聚合方法,聚合所述乙烯和任选的一种或多种α-烯烃共聚单体; (4),从而制备一种或多种乙烯; 其中当温度从85升至115℃时,所述催化剂体系具有至少85%的催化剂生产率的损失。