公开(公告)号：US11192965B2

公开(公告)日：2021-12-07

申请号：US16070105

申请日：2016-12-26

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Toshiya Uozumi ,  Hiroyuki Kono ,  Shinta Marui ,  Chika Uzawa

IPC: C08F110/06 ,  C08F4/659 ,  C08F4/649 ,  C08F4/654 ,  C08F4/646 ,  C07C69/618 ,  C07C69/708

Abstract: 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

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Toshiya Uozumi ,  Hiroyuki Kono ,  Shinta Marui ,  Chika Uzawa

IPC: C08F110/06 ,  C07C69/708 ,  C07C69/618

Abstract: 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：US20170369608A1

公开(公告)日：2017-12-28

申请号：US15542723

申请日：2016-01-18

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Hiroyuki Kono ,  Toshiya Uozumi ,  Shingo Yamada ,  Toshihiko Sugano

IPC: C08F110/06

CPC classification number: C08F110/06 ,  C08F4/654 ,  C08F10/00

Abstract: A method for producing an olefin polymerization catalyst includes bringing a solid catalyst component for olefin polymerization, a vinylsilane compound, an organosilicon compound, and an organoaluminum compound into contact with each other in an inert organic solvent under an inert gas atmosphere in the absence of a specific vinyl compound, wherein a washing treatment is not performed after the vinylsilane compound has been added to the reaction system, the solid catalyst component includes a magnesium compound, a titanium halide compound, and an electron donor compound that does not include a phthalic acid ester structure, and includes a diol skeleton, and the organosilicon compound does not include a vinyl group, and includes at least one group selected from an alkoxy group and an amino group.