| abstract |
FIELD: polymerization catalysts. n SUBSTANCE: invention provides catalytic system comprising metallocene polymerization catalyst and activator, wherein activator includes heterocyclic compound selected from group consisting of pyrroles, imidazoles, pyrazoles, pyrrolines, pyrrolydines, purines, carbazoles, indoles, phenylindoles, 2,5-simethylpyrroles, 3-pentafluorophenylpyrrole, 4,5,6,7-tetrafluoroindole, 3,4-difluoropyrroles, and mixtures thereof in combination with aluminum-containing compound, in particular alumoxane or alkylaluminum compound of formula AlR3, wherein R independently represent substituted or unsubstituted alkyl group. Polymerization process using above-defined system and thus obtained polymer are also disclosed. n EFFECT: increased assortment of polymerization catalysts. n 17 cl, 3 tbl, 36 ex |