Preparation of supported cocatalysts

Details Preparation of supported cocatalysts Preparation of supported cocatalysts

2004-12-22

2008-10-28

Lu, Caixia (Department: 1796)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

C502S103000, C502S104000, C502S120000, C502S152000, C526S129000, C526S132000, C526S133000, C526S134000, C526S160000

Reexamination Certificate

active

07442667

ABSTRACT:
The present invention relates to a process for preparing a supported cocatalyst for olefin polymerization, which comprises reactingA) a support bearing functional groups,B) triethylaluminum andC) a compound of the formula (I),in-line-formulae description="In-line Formulae" end="lead"?(R1)x—A—OH)y  (I)in-line-formulae description="In-line Formulae" end="tail"?whereA is an atom of group 13 or 15 of the Periodic Table,R1are identical or different and are each, independently of one another, hydrogen, halogen, C1-C20-alkyl, C1-C20-haloalkyl, C1-C10-alkoxy, C6-C20-aryl, C6-C20-haloaryl, C6-C20-aryloxy, C7-C40-arylalky, C7-C40-haloarylalkyl, C7-C40-alkylaryl, C7-C40-haloalkylaryl or an OSiR32group, whereR2are identical or different and are each hydrogen, halogen, C1-C20-alkyl, C1-C20-haloalkyl, C1-C10-alkoxy, C6-C20-aryl, C6-C20-haloaryl, C6-C20-aryloxy, C7-C40-arylalkyl, C7-C40-haloarylalkyl, C7-C40-alkylaryl or C7-C40-haloalkylaryl,y is 1 or 2 andx is 3 minus y.In addition, the invention relates to supported cocatalysts obtainable by such a process, to the use of the supported cocatalysts for preparing a catalyst system for the polymerization of olefins, to catalyst systems for the polymerization of olefins obtainable from the supported cocatalysts and to a process for the polymerization of olefins in which these catalyst solids are used.

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