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    • 7. 发明公开
    • 고강성을 갖는 폴리올레핀 제조방법
    • 生产具有高韧性的聚烯烃的方法
    • KR1020070115001A
    • 2007-12-05
    • KR1020060048743
    • 2006-05-30
    • 한화토탈 주식회사
    • 장호식오상준한재혁
    • C08F10/00C08F210/10C08F4/16C08F4/14
    • C08F4/602C08F2/001C08F4/6065C08F10/00
    • A method for preparing polyolefin is provided to produce polyolefin having high stiffness in a continuous polymerization reactor with high polymerization activity by using a pre-polymerization catalyst obtained from a Ziegler-Natta catalyst. A method for preparing polyolefin includes a step of polymerizing or copolymerizing olefins in a multi-stage continuous polymerization reactor in the presence of a catalyst system consisting of (a) a pre-polymerization catalyst, (b) an organometallic compound of a group 1 or 3 metal on the periodic table, and (c) an external electron donor. The pre-polymerization catalyst is obtained by reacting olefin monomers in the presence of a Ziegler-Natta based solid complex titanium catalyst, at least two aluminum compounds comprising alkylaluminum and halogenated aluminum, and an electron donor to polymerize a high-molecular-weight monomer on the surface of the catalyst.
    • 提供一种制备聚烯烃的方法,通过使用由齐格勒 - 纳塔催化剂获得的预聚合催化剂,在具有高聚合活性的连续聚合反应器中制备具有高刚度的聚烯烃。 制备聚烯烃的方法包括在多级连续聚合反应器中在催化剂体系存在下聚合或共聚烯烃的步骤,催化剂体系由(a)预聚合催化剂,(b)第1族的有机金属化合物或 3金属,(c)外部电子给体。 预聚合催化剂是通过在齐格勒 - 纳塔基固体络合物钛催化剂,至少两种包含烷基铝和卤化铝的铝化合物存在下使烯烃单体和电子给体聚合高分子量单体得到的 催化剂的表面。