公开(公告)号：US20250101153A1

公开(公告)日：2025-03-27

申请号：US18832591

申请日：2022-10-17

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Keisuke Goto ,  Toshiya Uozumi ,  Hiroyuki Kono ,  Shinta Marui ,  Chika Yoshizaki

IPC: C08F110/06

Abstract: A solid catalyst component for olefin polymerization containing magnesium, titanium, a halogen, a carbonate compound (A) represented by the following general formula (1): R1—O—C(═O)—O—Z—O—R2 (1), and an ether compound (B) having two or more ether groups, wherein a proportion of the ether compound (B) in a total of the carbonate compound (A) and the ether compound (B) is 33.0 to 80.0 mol %. The invention can provide a solid catalyst component for olefin polymerization using an ether compound having two or more ether groups and a carbonate compound as internal electron donating compounds, wherein the solid catalyst component for olefin polymerization has, in the polymerization of olefins, a moderately wide molecular weight distribution of an olefin polymer obtained therefrom and can increase the polymerization activity.

公开(公告)号：US20230220143A1

公开(公告)日：2023-07-13

申请号：US17927447

申请日：2021-03-15

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Hiroyuki Kono ,  Takaharu Sakemi ,  Toshiya Uozumi ,  Keisuke Goto

IPC: C08F299/02 ,  C08F4/52 ,  C08F2/06

CPC classification number: C08F299/022 ,  C08F4/52 ,  C08F2/06 ,  C08F2810/20 ,  C08F2810/40

Abstract: The present invention provides a method for producing a catalyst for polymerization of an olefin, which suppresses a decrease in polymerization activity due to early deactivation of the active site after the catalyst has been formed, exhibits excellent catalyst activity at the time of polymerization of olefins, and can produce polymers of olefins, which are excellent in stereoregularity. The method for producing a catalyst for polymerization of an olefin includes contacting a solid catalyst component (A) containing magnesium, titanium, halogen and an internal electron-donating compound, and a specific organoaluminum compound (B) represented by the general formula (I), with each other, wherein at least one selected from the solid catalyst component (A) and the organoaluminum compound (B) is previously subjected to contact treatment with a hydrocarbon compound having one or more vinyl groups.

公开(公告)号：US20230220126A1

公开(公告)日：2023-07-13

申请号：US17927428

申请日：2021-03-15

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Hiroyuki Kono ,  Takaharu Sakemi ,  Toshiya Uozumi ,  Keisuke Goto

IPC: C08F4/654

CPC classification number: C08F4/654

Abstract: A method is disclosed for producing a catalyst, which suppresses a decrease in polymerization activity due to early deactivation of the active site after the catalyst has been formed, exhibits excellent catalyst activity at the time of polymerization of olefins, and can produce polymers of olefins, which are excellent in stereoregularity. The method for producing a catalyst includes contacting a solid catalyst component (A) containing magnesium, titanium, halogen and an internal electron-donating compound, and a specific organoaluminum compound (B) represented by the general formula (I), with each other, wherein at least one selected from the solid catalyst component (A) and the organoaluminum compound (B) is previously subjected to contact treatment with a hydrocarbon compound having one or more vinyl groups, in an organic solvent containing 30% by mass or more of one or more compounds selected from saturated aliphatic hydrocarbon compounds having 20 or more carbon atoms.

公开(公告)号：US10472436B2

公开(公告)日：2019-11-12

申请号：US15542149

申请日：2016-01-18

Applicant: TOHO TITANIUM CO., LTD.

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

IPC: C08F110/06 ,  C08F4/658 ,  C08F10/00

Abstract: A solid catalyst component for olefin polymerization exhibits excellent catalytic activity during polymerization, and can produce a polymer that exhibits excellent stereoregularity, bulk density, and the like even when a polymerization catalyst is produced in an inert atmosphere using an electron donor compound other than a phthalic ester and an organosilicon compound. The solid catalyst component for olefin polymerization is produced by bringing a vinylsilane compound (d) into contact with a catalyst component, the catalyst component being a powdery solid component obtained by bringing a magnesium compound (a), a titanium halide compound (b), and an electron donor compound (c) into contact with each other, the electron donor compound (c) being one or more compounds that do not include a phthalic ester structure, and include one or more groups selected from an ester group, a carbonate group, and an ether group, the vinylsilane compound (d) being brought into contact with the catalyst component in a 0.1 to 15-fold molar quantity with respect to the molar quantity (on a titanium atom basis) of the titanium halide compound (b) included in the catalyst component.

公开(公告)号：US10392453B2

公开(公告)日：2019-08-27

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 ,  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.

公开(公告)号：US10011669B2

公开(公告)日：2018-07-03

申请号：US14770974

申请日：2014-02-05

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Toshihiko Sugano ,  Motoki Hosaka ,  Toshiya Uozumi

IPC: C08F210/06 ,  C08F297/08

CPC classification number: C08F210/06 ,  C08F297/08 ,  C08F210/16 ,  C08F2500/12 ,  C08F10/00 ,  C08F4/651 ,  C08F2/001 ,  C08F4/6492 ,  C08F4/6465

Abstract: A method for producing a propylene-based block copolymer ensures excellent olefin polymerization activity and activity with respect to hydrogen (hydrogen response) during polymerization, and produces a propylene-based block copolymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes copolymerizing propylene and an α-olefin in the presence of a catalyst that includes (I) a solid catalyst component that includes titanium, magnesium, a halogen, and a compound represented by R1O—C(═O)—O—Z—OR2, and (II) a compound represented by R3pAlQ3-p, to obtain a propylene-based block copolymer.

公开(公告)号：US11912796B2

公开(公告)日：2024-02-27

申请号：US16977599

申请日：2019-01-25

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Toshiya Uozumi ,  Tetsuya Morioka ,  Keiichi Kurosaki ,  Teppei Ishikawa

IPC: C08F210/06 ,  C08F10/06 ,  C08F2/00 ,  C08F4/656 ,  C08F297/08 ,  C08F4/658 ,  C08F4/657

CPC classification number: C08F10/06 ,  C08F210/06 ,  C08F297/08 ,  C08F2/001 ,  C08F4/656 ,  C08F4/657 ,  C08F4/658

Abstract: Provided is a novel olefin polymer which is excellent in lightness and moldability, has high rigidity and yields molded products excellent in flexural elasticity. The olefin polymer includes a propylene initial polymerization product formed in the presence of an olefin polymerization catalyst which is a contact reaction product of an olefin polymerization solid catalyst component containing a titanium atom, a magnesium atom, a halogen atom and an internal electron donating compound, at least one organoaluminum compound selected from the compounds of the general formula (I), and a first external electron donating compound; and a polypropylene part formed of a propylene polymerization product formed in the presence of the olefin polymerization catalyst and a second external electron donating compound higher in adsorption to the surface of the olefin polymerization solid catalyst component than the first external electron donating compound.

公开(公告)号：US11219891B1

公开(公告)日：2022-01-11

申请号：US17084752

申请日：2020-10-30

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Toshiya Uozumi ,  Teppei Ishikawa

IPC: B01J37/04 ,  C08F10/06 ,  B01J35/02

Abstract: A method for manufacturing a solid catalyst component for polymerization of an olefin is disclosed, which includes bringing a magnesium compound and a specific styrene-based compound into contact with each other to obtain a preliminary contact product, and subsequently bringing the preliminary contact product, a titanium halide compound, and an internal electron donor compound into contact with each other to obtain a solid catalyst component for polymerization of an olefin; and a method for manufacturing a catalyst for polymerization of an olefin and a method for manufacturing a polymer of an olefin using the solid catalyst component for polymerization of an olefin obtained by the manufacturing method.

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.