ELECTRON DONOR COMPOSITION FOR SOLID CATALYST, SOLID CATALYST COMPOSITION FOR USE IN POLYMERIZING alpha-OLEFIN, AND PROCESS FOR PRODUCING POLYMER COMPRISING alpha-OLEFIN UNIT USING THE SOLID CATALYST COMPOSITION

摘要

<P>PROBLEM TO BE SOLVED: To provide an electron donor composition for a catalyst composition for producing polymers comprising α-olefin monomer units, wherein the polymers have both a broader MWD than polymers produced by already known catalyst compositions and acceptable activities, thereby also the desired isotacticity of the polymers is not deteriorated substantially. Ž<P>SOLUTION: The electron donor composition includes a dihydroanthracene derivative and a phthalate ester. A solid catalyst composition comprises the electron donor composition for use in α-olefin polymerization. Further, the process for producing a polymer containing an α-olefin monomer unit is provided. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž