Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2006-12-26
2006-12-26
Green, Anthony J. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S102000, C502S103000, C502S113000, C502S118000, C502S121000, C502S126000, C526S124200, C526S124300, C526S346000
Reexamination Certificate
active
07153804
ABSTRACT:
The present invention provides a catalyst component for ethylene polymerization, a process for preparing the same, a catalyst comprising the same, and a process for polymerizing ethylene using the catalyst. The catalyst component comprises a reaction product, supported on an inorganic oxide support, of a magnesium complex, a titanium compound, an alcohol compound, and an organoaluminum compound, wherein said magnesium complex is formed by dissolving a magnesium halide in a solvent system comprising an organic epoxy compound and an organo phosphorus compound. The catalyst according to the invention is especially suitable for slurry phase polymerization of ethylene. The catalyst according to the present invention has high catalytic activity, and a good hydrogen response, with the resultant polymer having a more uniform particle size diameter and a narrow particle size distribution.
REFERENCES:
patent: 3776091 (1973-12-01), Suzuki
patent: 4784983 (1988-11-01), Mao et al.
patent: 5288933 (1994-02-01), Kao et al.
patent: 6107231 (2000-08-01), Huffer et al.
patent: 6200922 (2001-03-01), Huffer et al.
patent: 6221984 (2001-04-01), Kersting et al.
patent: 6521722 (2003-02-01), Bidell et al.
patent: 6524995 (2003-02-01), Spaether et al.
patent: 6881801 (2005-04-01), Dolle et al.
patent: 1104220 (1995-06-01), None
patent: 1229092 (1999-09-01), None
patent: 0752431 (1997-01-01), None
patent: 860452 (1998-08-01), None
PCT Search Report (Aug. 25, 2005).
Chen Wei
Cheng Xiaojing
Guo Zifang
Li Ruixia
Liu Yuexiang
Beijing Reasearch Institute of Chemical Industry
China Petroleum & Chemical Corporation
Green Anthony J.
Morgan & Finnegan , LLP
LandOfFree
Catalyst component for ethylene polymerization, the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catalyst component for ethylene polymerization, the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst component for ethylene polymerization, the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3680018