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    • 4. 发明申请
    • Half metallocene catalyst and process for preparing syndiotactic styren polymer using the same
    • 半金属茂催化剂及其制备使用其的间同立构苯乙烯聚合物的方法
    • US20070105710A1
    • 2007-05-10
    • US11268848
    • 2005-11-08
    • Young-jo KimDoh-yeon ParkYou-mi JeongMin-hyung Lee
    • Young-jo KimDoh-yeon ParkYou-mi JeongMin-hyung Lee
    • B01J31/00
    • C08F112/08C08F4/65912C08F4/6592Y10S526/943
    • The present invention relates to a transition metal half metallocene catalyst with a noble structure for preparing syndiotatic styrene polymer having high activity, superior stereoregularity, high melting point and broad molecular weight distribution and a process for preparing styrene polymer using the same. The present invention provides a half metallocene catalyst having a single nucleus structure, in which a transition metal in Groups 3 to 10 on the periodic table is connected to a cycloalkanedienyl group or its derivative forming 5-coordinate bond on a side thereof and to any one of triethanolamine, N-alkyldiethanolamine and N-dialkylethanolamine group, all of which have a plurality of binding sites and high steric hinderance, on the other side thereof. The noble metallocene catalyst according to the present invention is useful for preparing highly syndiotatic vinyl aromatic polymer with broad molecular weight distribution and high activity.
    • 本发明涉及一种用于制备具有高活性,优异的立构规整性,高熔点和宽分子量分布的间苯乙烯聚合物的贵金属结构的过渡金属半茂金属催化剂和使用其制备苯乙烯聚合物的方法。 本发明提供具有单核结构的半茂金属催化剂,其中周期表中第3至10族中的过渡金属与其一侧上的环烷二烯基或其衍生物形成5-配位键连接, 的三乙醇胺,N-烷基二乙醇胺和N-二烷基乙醇胺基团,其全部在其另一侧具有多个结合位点和高空间阻力。 根据本发明的贵金属茂催化剂可用于制备具有宽分子量分布和高活性的高间隔乙烯基芳族聚合物。