Patent ID: 6127495
Filing Date: 2000-10-03
Classification: C08F,Y02P,Y10S

Abstract:
A process for the preparation of polymers of C.sub.2 -C.sub.12 -alkenes at from -50 to 300.degree. C. and from 0.5 to 3000 bar in the presence of a catalyst system comprising a metallocene complex, wherein a compound of the formula I ##STR11## wherein M.sup.1 is boron andR.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.15 -alkyl, C.sub.6 -C.sub.15 -aryl, alkylaryl or arylalkyl, each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, or 5- to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl as a substituent, or R.sup.1 and R.sup.2 together form a cyclic group of 4 to 15 carbon atoms, is added as a reaction retarder.