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公开(公告)号:US06787617B1
公开(公告)日:2004-09-07
申请号:US10009094
申请日:2001-11-08
申请人: Kazuo Soga , Takeshi Shiono , Michihiko Asai , Yasuzo Suzuki , Akira Miyazawa , Kenji Tsuchihara , Masahide Murata , Hiroyuki Ozaki , Masanao Kawabe , Toshio Kase , Jizhu Jin , Hideaki Hagiwara , Yoshifumi Fukui
发明人: Kazuo Soga , Takeshi Shiono , Michihiko Asai , Yasuzo Suzuki , Akira Miyazawa , Kenji Tsuchihara , Masahide Murata , Hiroyuki Ozaki , Masanao Kawabe , Toshio Kase , Jizhu Jin , Hideaki Hagiwara , Yoshifumi Fukui
IPC分类号: C08F452
CPC分类号: C08F297/08 , C08F4/65904 , C08F4/6592 , C08F4/65922 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/06 , Y10S526/943 , C08F4/65908 , C08F2500/03 , C08F210/14
摘要: A process for preparing olefinic living polymers having a molecular weight distribution (Mw/Mn) of 1 to 1.3, comprising polymerizing an olefinic monomer having 2 to 20 carbon atoms at low temperatures in the presence of a catalyst comprising (A) a hafnium or zirconium-containing compound having one or two cyclopentadienyl backbones, (B) a triphenyl boron compound or a tetraphenyl borate compound and optionally (C) a specific mono-, di- or trialkylaluminum compound. When the catalyst comprising the zirconium-containing compound is prepared by further using a titanium-containing compound (D), the polymerization temperature can be raised.
摘要翻译: 一种制备具有1至1.3的分子量分布(Mw / Mn)的烯属活性聚合物的方法,包括在催化剂存在下在低温下聚合具有2至20个碳原子的烯烃单体,所述催化剂包含(A)铪或锆 (B)三苯基硼化合物或四苯基硼酸盐化合物和任选的(C)特定的单 - ,二 - 或三烷基铝化合物。 当通过进一步使用含钛化合物(D)制备包含含锆化合物的催化剂时,可以提高聚合温度。