METHOD FOR PRODUCING SOLID CATALYST COMPONENT FOR USE IN POLYMERIZATION OF OLEFIN, CATALYST FOR USE IN POLYMERIZATION OF OLEFIN, AND METHOD FOR PRODUCING OLEFIN POLYMER
申请人:Toho Titanium CO., LTD.
公开号:EP2876118A1
公开(公告)日:2015-05-27
A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds selected from specific aromatic dicarboxylic diesters into contact with each other to effect a reaction, followed by washing, a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing, and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.
PRODUCTION METHOD FOR SOLID CATALYST COMPONENT FOR POLYMERIZING OLEFINS, CATALYST FOR POLYMERIZING OLEFINS, AND PRODUCTION METHOD FOR POLYMERIZED OLEFINS
申请人:TOHO TITANIUM CO., LTD.
公开号:EP2963063A1
公开(公告)日:2016-01-06
A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds excluding an aromatic dicarboxylic acid diester into contact with each other to effect a reaction, followed by washing; a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing; and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.