Catalyst component comprising magnesium, titanium, a halogen and an electron donor, its preparation and use
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United States of America Patent
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Apr 11, 2006
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N/A
app pub date -
Oct 18, 2001
filing date -
Nov 10, 2000
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Abstract
Process for the preparation of a particular olefin polymerisation catalyst component including magnesium dihalide, titanium tetrahalide and a carboxylic acid ester, in which the precursors of its constituents are reacted in solution from which the component is precipitated, this precipitation being accompanied by co-precipitation of one or more oligoesters of the carboxylic acid formed in a controlled manner.
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