C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 4/642 (2006.01) C08F 10/00 (2006.01) C08F 10/02 (2006.01) C08F 210/16 (2006.01) C08F 255/00 (2006.01) C08F 255/02 (2006.01) C08J 5/18 (2006.01) C08L 23/02 (2006.01) C08L 23/08 (2006.01) C08L 51/06 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01)
Patent
CA 2103379
Disclosed is an olefin polymerization catalyst comprising (a) aluminoxane, (b-I) a first transition metal compound ML 1 x (in which M is a Group IVB metal such as Zr, x is the valence of M and L 1 is a ligand, at least two of L 1 being optionally substituted cyclopentadienyl hydrocarbon and the other of L 1 being hydrocarbon, alkoxy, aryloxy, trialkylsilyl, halogen or hydrogen) and (b-II) a second transition metal compound ML 2 x (in which M and x are as defined above and L 2 is a ligand, at least two of L 2 being cyclopentadienyl substituted with 2-5 substituents selected from methyl and ethyl and the other of L 2 being hydrocarbon, alkoxy, aryloxy, trialkylsilyl, halogen or hydrogen). By using the catalyst, an olefin polymer having high melt tension and good moldability may be prepared.
Inagaki Hajime
Ohta Seiji
Takahashi Mamoru
Todo Akira
Tsutsui Toshiyuki
Mitsui Chemicals Inc.
Smart & Biggar
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