OLEFIN POLYMERIZATION CATALYST ACTIVATOR, CATALYTIC SYSTEM, AND POLYMERIZATION PROCESS Russian patent published in 2002 - IPC

FIELD: polymerization catalysts. SUBSTANCE: catalyst activator contains cation represented by proton-releasing Broensted acid and inert compatible and coordination-incapable anion, which is defined by general formula [L^*-H]⁺A^-, wherein L^* is Lewis base containing nitrogen, sulfur, or phosphorus and 1 to 3 C10-C40-alkyl groups with total number of carbon atoms from 12 to 100. Activator exhibits solubility at 25 C in hexane, cyclohexane, or methylcyclohexane at least 5 wt. %. More particularly, activator can be represented by di(octadecyl)methylammonio-tetrakis(pentafluorophenyl) borate or di(hydrogenated tall alkyl) methylammonio-tetrakis(pentafluorophenyl) borate. EFFECT: increased catalytic activity, especially under continuous polymerization conditions in solution. 8 cl, 2 tbl, 4 ex