SOLID CATALYST COMPONENT AND CATALYST FOR POLYMERIZATION OF OLEFIN, AND METHOD FOR PRODUCING POLYMER OR COPOLYMER OF OLEFIN USING THE SAME
申请人:Toho Catalyst Co., Ltd.
公开号:EP1829898A1
公开(公告)日:2007-09-05
A catalyst for polymerization of olefins and a process for producing an olefin polymer or copolymer are disclosed. The catalyst comprises (a) a solid catalyst component obtained by causing an organosilicon compound (b) represented by the formula, [CH2=CH-(CH2)n]qSiR34-q, and an organoaluminum compound to come in contact with a solid component comprising magnesium, titanium, halogen, and an electron donor compound, or a solid catalyst component obtained by causing a magnesium compound, two types of titanium compounds, an electron donor compound, and an organosilicon compound to come in contact with each other, and (B) an organoaluminum compound. The process for producing an olefin polymer or copolymer comprises polymerizing olefins in the presence of the catalyst. The catalyst has a high catalytic activity, exhibits excellent hydrogen response, and can produce polymers with high stereoregularity and a broad molecular weight distribution at a high yield.
本发明公开了一种烯烃聚合催化剂和一种生产烯烃聚合物或共聚物的工艺。该催化剂包括:(a) 一种固体催化剂组分,通过使一种由式[CH2=CH-(CH2)n]qSiR34-q表示的有机硅化合物(b)和一种有机铝化合物与一种由镁、钛、卤素和一种电子供体化合物组成的固体组分接触而得到;或一种固体催化剂组分,通过使一种镁化合物、两种钛化合物、一种电子供体化合物和一种有机硅化合物相互接触而得到;以及(B) 一种有机铝化合物。生产烯烃聚合物或共聚物的工艺包括在催化剂存在下聚合烯烃。该催化剂具有很高的催化活性,表现出优异的氢响应,并能以高产率生产出立体规整度高、分子量分布广的聚合物。