Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2005-10-18
2005-10-18
Lorengo, J. A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S117000, C525S121000, C526S090000
Reexamination Certificate
active
06956003
ABSTRACT:
A catalyst system for (co)-polymerizing ethylene or ethylene with α-olefin is disclosed. The catalyst system utilizes a catalyst component that contains the product of a reaction of an early transition metal complex such as a titanium alkoxide with a cyclic diene-containing compound such as indene. The catalyst system also utilizes a solid magnesium halide support and an alkylaluminum co-catalyst. The catalyst system of present invention produces polyethylene with a narrow molecular weight distribution and a narrow compositional distribution.
REFERENCES:
patent: 3113115 (1963-12-01), Ziegler et al.
patent: 4496660 (1985-01-01), Gessell et al.
patent: 4544646 (1985-10-01), Pullukat et al.
patent: 5047468 (1991-09-01), Lee et al.
patent: 5064798 (1991-11-01), Chang
patent: 5091353 (1992-02-01), Kioka et al.
patent: 5192731 (1993-03-01), Kioka et al.
patent: 5260245 (1993-11-01), Mink et al.
patent: 5336652 (1994-08-01), Mink et al.
patent: 5561091 (1996-10-01), Mink et al.
patent: 5990251 (1999-11-01), Gelus
patent: 6271165 (2001-08-01), Jacobsen et al.
patent: 6284701 (2001-09-01), Yoon et al.
patent: 6303724 (2001-10-01), Goodall et al.
patent: 6391989 (2002-05-01), Bohnen et al.
patent: 6403518 (2002-06-01), Ward
patent: 6403739 (2002-06-01), Tanaglia et al.
patent: 6500906 (2002-12-01), Kong et al.
patent: 6538080 (2003-03-01), Swindoll et al.
patent: 6559088 (2003-05-01), Shamshoum et al.
patent: 6590046 (2003-07-01), Kong et al.
patent: 6656866 (2003-12-01), Wenzel et al.
patent: 6696532 (2004-02-01), Cavell et al.
patent: 6727329 (2004-04-01), Vogel
patent: 6730755 (2004-05-01), Gao et al.
patent: 6780947 (2004-08-01), Sommazzi et al.
patent: 6797791 (2004-09-01), Gindelberger
patent: 6800701 (2004-10-01), Campbell, Jr. et al.
patent: 6809209 (2004-10-01), Rodriguez
patent: 6812184 (2004-11-01), Vaughan et al.
patent: 6821921 (2004-11-01), Theopold et al.
patent: 6822057 (2004-11-01), Rodriguez
patent: 6825371 (2004-11-01), Sugano et al.
patent: 6841498 (2005-01-01), Kong et al.
Department of Polymer Science—University of Southern Mississippi; Ziegler-Natta Vinyl Polymerization, 1995; 10 pages.
Kong Gap-goung
Lu Honglan
Brown Jennine
Formosa Plastics Corporation U.S.A.
Howrey LLP
Lorengo J. A.
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