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公开(公告)号：US20190023820A1
公开(公告)日：2019-01-24
申请号：US15773278
申请日：2016-10-28
发明人： Hiroyuki Kono , Takahiro Masuyama , Shinta Marui , Toshiya Uozumi
IPC分类号： C08F110/06
摘要： It is intended to provide a method for producing a catalyst for olefin polymerization which exhibits excellent catalytic activity in a polymerization treatment and permits production of a polymer excellent in stereoregularity, melt flowability, etc., even when the polymerization catalyst is prepared in an inert gas atmosphere by using a solid catalytic component comprising an electron-donating compound other than a phthalic acid ester. The method for producing a catalyst for olefin polymerization comprises performing a pre-contact treatment of bringing a solid catalytic component (A) comprising a magnesium atom, a titanium atom, a halogen atom and an electron-donating compound having no phthalic acid ester structure, a specific organoaluminum compound (B) and an external electron-donating compound (C) into contact with each other at a temperature of lower than 15° C. for a time of 30 minutes or shorter in the absence of the olefin.
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公开(公告)号：US11192965B2
公开(公告)日：2021-12-07
申请号：US16070105
申请日：2016-12-26
发明人： Toshiya Uozumi , Hiroyuki Kono , Shinta Marui , Chika Uzawa
IPC分类号： C08F110/06 , C08F4/659 , C08F4/649 , C08F4/654 , C08F4/646 , C07C69/618 , C07C69/708
摘要： Provided is a solid catalyst component for olefin polymerization comprising an electron-donating compound other than a phthalate, the solid catalyst component being equal in the olefin-polymerizing activity and in the primary physical properties of the resulting polymer such as stereoregularity and molecular weight distribution to those with use of a phthalate as an electron-donating compound. A solid catalyst component for olefin polymerization comprises a magnesium atom, a titanium atom, a halogen atom, an ester compound (A) represented by a general formula (1) and a diester compound (B) represented by a general formula (2), wherein
a ratio represented by the following expression: (content (mass %) of ester compound (A)/content (mass %) of diester compound (B)) is 0.05 to 50.-
公开(公告)号：US20210040247A1
公开(公告)日：2021-02-11
申请号：US16070105
申请日：2016-12-26
发明人： Toshiya Uozumi , Hiroyuki Kono , Shinta Marui , Chika Uzawa
IPC分类号： C08F110/06 , C07C69/708 , C07C69/618
摘要： Provided is a solid catalyst component for olefin polymerization comprising an electron-donating compound other than a phthalate, the solid catalyst component being equal in the olefin-polymerizing activity and in the primary physical properties of the resulting polymer such as stereoregularity and molecular weight distribution to those with use of a phthalate as an electron-donating compound. A solid catalyst component for olefin polymerization comprises a magnesium atom, a titanium atom, a halogen atom, an ester compound (A) represented by a general formula (1) and a diester compound (B) represented by a general formula (2), wherein
a ratio represented by the following expression: (content (mass %) of ester compound (A)/content (mass %) of diester compound (B)) is 0.05 to 50.
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