Sumitomo Chemical Company, Limited

Kenji Sogoh

Hidenori Hanaoka

Hisakatsu Hama

Takahiro Hino

Taichi Senda

Katsuhiro Yamada

Masaaki Tsutsubuchi

Shinya Nakahara

Yohei Kashiwame

A modified solid polyalkylaluminoxane is provided, which is capable of providing &#x3b1;-olefin suppressing adhesion of any polymer produced as a by-product onto the reactor wall and the stirrer, and which is capable of providing a highly active olefin oligomerization reaction catalyst. An olefin oligomerization reaction catalyst containing the modified solid polyalkylaluminoxane is also provided. The modified solid polyalkylaluminoxane for olefin oligomerization reactions contains structural units represented by general formula (a) and structural units represented by general formula (b), whose median diameter is equal to or larger than 0.1 &#x3bc;m and equal to or smaller than 50 &#x3bc;m, in which R' in the general formula (a) represents an alkyl group having 1 to 20 carbon atoms, and R&#x2033; in the general formula (b) represents a halogenated alkoxy group having 1 to 20 carbon atoms or a halogenated aryloxy group having 6 to 20 carbon atoms.

Modified solid polyalkylaluminoxane and catalyst for olefin oligomerization reaction

A resin composition, comprising (a) 50 to 99% by weight of a crystalline polypropylene resin, and (b) 1 to 50% by weight of a propylene copolymer comprising 50 to 85% by mol of a propylene unit and 15 to 50% by mol of a C&#x3b1;-olefin unit, the propylene copolymer having (1) no meting point in a range of &#x2212;100 to 200&#xb0; C., or a melting point of 50&#xb0; C. or lower in that temperature range, (2) an isotactic selectivity of 90% or higher, (3) a molecular weight distribution of 3 or smaller, and (4) an intrinsic viscosity of 0.1 to 10 dl/g.

Resin composition

A transition metal complex represented by formula [1], and its production process; a substituent-carrying fluorene compound represented by formula [2], and its production process; an olefin polymerization catalyst component comprising the complex; an olefin polymerization catalyst obtained by contacting the catalyst component with a defined aluminum compound and/or a defined boron compound; and a production process of an olefin polymer using the catalyst: 

Transition metal complex, process for producing said transition metal complex, substituent-carrying fluorene compound, process for producing said fluorene compound, catalyst component for olefin polymerization, catalyst for olefin polymerization, and process for producing olefin polymer

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Sodegaura, Japan

Kenji Sogoh