A supported catalyst for olefin polymerization comprises
A) as support material, a copolymer comprising the monomer units I,
II and III,
where the monomer units I have the formula (I) and the monomer units
II have the formula (II),
##STR1##
where the variables have the following meanings:
R1 is hydrogen, C1-C4-alkyl or phenyl,
R2 is substituted or unsubstituted aryl or branched or
unbranched alkyl or alkenyl,
A1 is a direct chemical bond or a substituted or unsubstituted
phenylene group,
R3 are identical or different and are each hydrogen,
C1-C10-alkyl or substituted or unsubstituted phenyl,
p is an integer from 0 to 8, and
R4 to R7 are hydrogen, C1-C10-alkyl
or substituted or unsubstituted phenyl,
and the monomer units III have polar groups, and
B) at least one metallocene complex and
C) at least one compound capable of forming metallocenium ions.
A process for preparing such supported catalysts, copolymers suitable as support
material and a process for the polymerization of olefins in the presence of a catalyst
according to the present invention are also provided.
