| abstract |
A catalyst for olefin polymerization comprising a reaction product between an Al-alkyl compound and a solid catalyst component comprising an electron donating compound selected from 1,3-diketone of the following formula, a titanium compound, and an active magnesium halide is disclosed.n n n n n n n n [Wherein, the R radicals are the same or different, the R I radicals are the same or different, and R and R I are C 1 to C 20 alkyl, C 3 to C 20 cycloalkyl, C 6 to C 20 aryl, C 7 to C 20 arylalkyl or alkylaryl radicals or hydrogen, provided that at least one R radical is not hydrogen and may be combined with other R radicals to form a cyclic structure, and not bonded to each other to form a cyclic structure; At least one radical R I is a branched alkyl, cycloalkyl or aryl radical or combines with one or two R radicals to form a cyclic structure. |