Catalyst components for the polymerization of olefins
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United States of America Patent
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Sep 23, 2008
Grant Date -
Apr 27, 2006
app pub date -
Nov 25, 2003
filing date -
Dec 18, 2002
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Abstract
A catalyst component for olefin (co)polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ED) belonging to ethers, esters, amines, ketones, or nitriles, characterized in that the molar ratio Mg/Ti is higher than 5, and the molar ratio ED/Ti is higher than 3.5. The said catalyst components display a homogeneous distribution of the comonomer in and among the copolymer chains.
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