| 摘要 |
PROBLEM TO BE SOLVED: To provide a chromium tridentate complex and to provide a method for (co)polymerizing with anα-olefin. SOLUTION: The chromium (III) complex represented by formula (I) is provided (wherein R<SB>1</SB>, R<SB>2</SB>, A, E, X, Z, p and n are each as same as described in claim 1). An olefin polymerization catalyst obtained by treating the chromium complex with an organoaluminum compound is also provided. COPYRIGHT: (C)2003,JPO
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