Appeal No. 2005-1211
Application No. 08/120,105
(B) at least two racemic or s-symmetric metallocenes as
transition-metal components and a salt-like compound of the
formula RxNH4-x or of the formula R3PHBR'4 wherein x is 1, 2
or 3, R is identical or different and is alkyl or aryl, and
R' is aryl, which may also be fluorinated or partly
fluorinated,
where the transition-metal component used comprises at
least two metallocenes of the formula I:
in which
M1 is Zr or Hf,
R1 and R2 are identical or different and are a hydrogen
atom, a C1-C10-alkyl group, a C1-C10-alkoxy group, a C6-
C10-aryl group, a C6-C10-aryloxy group, a C2-C10-alkenyl
group, a C7-C40-arylalkyl group, a C7-C40-alkylaryl
group, a C8-C40-arylalkenyl group, or a halogen atom,
R3 and R4 are identical or different and are indenyl,
cyclopentadienyl or fluorenyl which are optionally
substituted with substituents as defined for R11 and R12
-3-
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Last modified: November 3, 2007