Catalyst system for the polymerization of olefins

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C526S133000, C526S160000, C526S161000, C526S172000, C526S139000, C526S141000, C502S103000, C502S123000, C502S167000, C502S152000

Reexamination Certificate

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07314903

ABSTRACT:
An organometallic compound obtainable by contacting: a compound having the following formula (I), wherein: Rais a hydrocarbon radical; Rb, Rcand Rd, are hydrogen atoms, halogen atoms, or hydrocarbon radicals; with a Lewis acid of formula (II) MtR13(II) wherein Mt is a metal belonging to Group 13 of the Periodic Table of the Elements; R1are selected from the group consisting of halogen atoms, halogenated C6–C20aryl and halogenated C7–C20alkylaryl groups

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