Catalyst System
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United States of America Patent
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Issued Date -
Feb 5, 2009
app pub date -
Dec 20, 2006
filing date -
Jan 11, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A catalyst system suitable for the polymerisation of olefins, said system comprising (a) a transition metal compound or lanthanide metal compound (b) a cocatalyst and (c) at least one porous support material characterised in that the porous support material has been pretreated with a halogen-containing organometallic compound, in particularly with a fluorine-containing organometallic compound. The catalyst system is particularly suitable for the preparation of polymers having broad molecular weight distributions from the polymerisation of olefins in the presence of a single site catalyst.
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