Catalyst system for the polymerization of olefins

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing

Reexamination Certificate

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C548S402000, C548S405000, C502S103000, C502S117000, C502S152000, C502S167000, C502S168000, C502S172000, C526S132000, C526S134000, C526S135000, C526S163000

Reexamination Certificate

active

07417006

ABSTRACT:
A salt of formula (I)in-line-formulae description="In-line Formulae" end="lead"?[HEoR13]+[T1T2]−  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein Eois a nitrogen or phosphorous atom; R1is hydrocarbon radical; T1is a Lewis acid that forms a complex with T2, and T2is a substituted pyrrolyl radical of formula (III)These salts can be used as cocatalyst in a process for the polymerization of alpha-olefins in conjunction with a transition metal organometallic compound.

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