Process for producing olefin living polymer
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.
Japan Chemical Innovation Institute Japan as represented by Director General of the Agency of Industrial Science and Technology
Y C C C C C C C C
Y10S C08F C08F C08F C08F C08F C08F C08F C08F
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Masahide Masanao Hideaki Yoshifumi Jizhu Takeshi Yasuzo Kazuo Michihiko Toshio Kenji Akira Hiroyuki
Murata Kawabe Hagiwara Fukui Jin Shiono Suzuki Soga Asai Kase Tsuchihara Miyazawa Ozaki