Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-09-13
2005-09-13
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S114000, C526S116000, C526S115000, C526S117000, C526S160000, C526S170000, C526S129000, C526S130000, C526S134000, C526S943000, C502S103000, C502S117000
Reexamination Certificate
active
06943225
ABSTRACT:
The present invention relates to a multinuclear metallocene catalyst for olefin polymerization and a process for olefin polymerization using the same, in which the multinuclear metallocene catalyst for olefin polymerization comprises, as a main catalyst, a transition metal compound that contains at least two metal atoms in the groups III to X of the periodic table as central metals and a ligand having a cyclopentadienyl structure bridging between the two metal atoms, and, as a cocatalyst, an aluminoxane compound, an organoaluminum compound or a bulky compound reactive to the transition metal compound to impart a catalytic activity to the transition metal compound.
REFERENCES:
patent: 5372980 (1994-12-01), Davis
patent: 5439994 (1995-08-01), Inoue et al.
patent: 5830958 (1998-11-01), Peifer et al.
patent: 6010974 (2000-01-01), Kim et al.
patent: 6114556 (2000-09-01), Aulbach et al.
patent: 6153776 (2000-11-01), Patton et al.
patent: 6288254 (2001-09-01), Chen et al.
patent: 0985676 (2000-03-01), None
Liu et al. (Huaxue Xuebao, 1993, 51(11), 1118-1124 (Abstract only).
Deng et al. (Gaodeng Xuexiao Hauxue Xuebao, 2002, 23(11), 2089-2092 (Abstract only).
Tian et al. (Chinese Journal of Polymer Science, 1998, 16(4), 370-376 (Abstract only).
Jungling, S.; Mulhaput, R.; Plenio, H. J. Orgnomet. Chem. 1993, 460, 191-195.
Cho Han-Seock
Choi Ki-Ho
Do Young-Kyu
Han Yong-Gyu
Kim Seong-Kyun
Dilworth & Barrese LLP
Honam Petrochemical Corporation
Lee Rip A.
Wu David W.
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