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
2006-01-24
2006-01-24
Bell, Mark L. (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...
C502S119000, C502S125000, C502S128000, C502S133000, C502S134000
Reexamination Certificate
active
06989342
ABSTRACT:
A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with a phosphorus compound and a silicon compound having at least one alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound. The solid titanium complex catalyst for polymerization and copolymerization of ethylene according to present invention exhibits high polymerization activity, and may be advantageously used in the polymerization and copolymerization of ethylene to produce polymers of high bulk density and narrow molecular weight distribution.
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Kim Won-Young
Lee Weon
Park Ji-Yong
Yang Chung-Byung
Bell Mark L.
Meyertons Eric B.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Pasterczyk J.
Samsung General Chemicals Co. Ltd.
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