| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for producing a prepolymerization catalyst component being homogeneous, scarcely adhering to the wall surface of a dryer, and having little tendency in its granules to get aggregated with each other. SOLUTION: The process includes the following steps (1) to (4): step (1): heat-treating a solution containing a metallocene-based compound (B1), which is prepared by dissolving the metallocene-based compound (B1) in a saturated hydrocarbon solvent, at 40°C or above to obtain a heat-treated material (1); step (2): heat-treating a mixture of the heat-treated material (1) and a metallocene-based compound (B2) at 40°C or above to obtain a heat-treated material (2); step (3): subjecting the heat-treated material (2) and a cocatalyst support (A) to a contact treatment to obtain a contact treatment product (3); and step(4): subjecting the contact treatment product (3) and an organoaluminum compound (C) to a contact treatment to obtain a contact treatment product (4). COPYRIGHT: (C)2010,JPO&INPIT
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