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US 7,608,555 B2Granted
Method for the preparation of olefin polymerization catalysts
AssigneeBorealis Technology Oy
InventorsThomas Garoff, Kari Pesonen, Päivi Waldvogel, Timo V. Laine, Peter Denifl, Jarmo Lindroos
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Abstract
The present invention relates to a process for the production of catalysts, particularly of Ziegler-Natta type of catalysts for olefin polymerisation, to the catalysts as such, and to their use in polymerising olefins.
Claims28
A process for producing an olefin polymerization catalyst precursor comprising a catalyst component formed by contacting at least (a) a compound of Group 1 to 3 of the Periodic Table (IUPAC) with (c1) a chlorine-containing compound of Group 13 of the Periodic table (IUPAC), in the form of solid particles, said process comprising:
- (1) preparing a solution from said compounds;
- (2) dispersing said solution to a media immiscible therewith and inert in relation to the compounds, to obtain an emulsion in which said solution forms the dispersed phase;
- and
- (3) solidifying the catalyst component in the dispersed droplets.
1 more element
Dependencies are inferred from the claim text.