Process for producing prepolymerized supported metallocene catalyst, the catalyst thereof and its use in the polymerization of olefin.

摘要

A process for producing a prepolymerization catalyst component which contains contacting a co-catalyst support (A), a metallocene compound (B) and an organoaluminum compound (C) to obtain a contact-treated product, and prepolymerizing an olefin in the presence of the contact-treated product, the process containing the following steps (1), (2) and (3):
step (1): a step of subjecting a saturated aliphatic hydrocarbon compound solvent containing the metallocene compound (B) to a heat treatment at 40°C or higher;
step (2): a step of subjecting the heat treatment product obtained by the heat treatment in the step (1) to a contact treatment with the co-catalyst support (A); and
step (3): a step of subjecting the contact treatment product obtained by the contact treatment in the step (2) to a contact treatment with the organoaluminum compound (C).