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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.
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62.发明公开公开(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.
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公开(公告)号：US20230174684A1
公开(公告)日：2023-06-08
申请号：US17921666
申请日：2021-03-15
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Hiroyuki Kono , Emiko Wada
Abstract: Provided is a solid catalyst component for polymerization of an olefin which is capable of realizing stereoregularity and wide molecular weight distribution of the resulting polymer, copolymerization activity, and block ratio of the resulting copolymer in a well-balanced manner while satisfying these properties at a level sufficient for practical use despite containing an electron-donating compound other than a phthalic acid ester. The present invention provides a solid catalyst component for polymerization of an olefin, comprising: magnesium, titanium, halogen, an ether carbonate compound (A), and a succinic acid diester compound (B), wherein a molar ratio represented by the following expression is 0.01 to 1.00: content of the ether carbonate compound (A)/content of the succinic acid diester compound (B).
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公开(公告)号：US20230159671A1
公开(公告)日：2023-05-25
申请号：US17921663
申请日：2021-03-15
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Motoki Hosaka
CPC classification number: C08F4/76 , C08F4/10 , C08F4/6293 , C08F10/06
Abstract: The present invention provides a solid catalyst component for polymerization of an olefin, which appropriately suppresses a decrease in polymerization activity per unit time when having been supplied to the polymerization of the olefin, even without using a phthalic acid ester, and can easily prepare a polymer of an olefin, in which drying efficiency is improved, and a content ratio of a remaining volatile organic compound is greatly reduced in a short period of time. The solid catalyst component for polymerization of an olefin includes magnesium, titanium, halogen and a 1,3-diether compound, wherein a ratio of the 1,3-diether compound contained in the solid catalyst component for polymerization of an olefin is 2.50 to 15.00% by mass, and a specific surface area of the solid catalyst component for polymerization of an olefin is 250 m2/g or larger.
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公开(公告)号：US20230084462A1
公开(公告)日：2023-03-16
申请号：US17794300
申请日：2020-12-15
Applicant: Toho Titanium Co., Ltd.
Inventor： Yosuke Inoue , Syogo Tsumagari , Yasuhiko Goto
Abstract: A method for manufacturing a porous metal body according to the present invention includes: a surface oxidizing step of heating a titanium-containing powder in an atmosphere containing oxygen at a temperature of 250° C. or more for 30 minutes or more to provide a surface-oxidized powder; and a sintering step of depositing the surface-oxidized powder in a dry process, and sintering the surface-oxidized powder by heating it in a reduced pressure atmosphere or an inert atmosphere at a temperature of 950° C. or more.
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Patent Agency Ranking
公开(公告)号：US20220162451A1
公开(公告)日：2022-05-26
申请号：US17432988
申请日：2020-02-26
Applicant: Toho Titanium Co., Ltd.
Inventor： Matsuhide Horikawa , Seiichiro Tani , Hideki Fujii , Tomoaki Heya , Hideki Watanabe
Abstract: Particles containing a titanate compound according to the present invention comprise alkali metal titanate particles and binder layers, wherein the particles containing the titanate compound has a 50% particle diameter D50 of from 40 μm to 100 μm, and wherein a content ratio of the particles containing the titanate compound having a shorter diameter d of 3 μm or less, a longer diameter L of 5 μm or more, and an aspect ratio (L/d) of 3 or more is 0.05 mass % or less.
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公开(公告)号：US20210066723A1
公开(公告)日：2021-03-04
申请号：US16960230
申请日：2018-03-19
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Masashi HAYAKAWA , Syogo TSUMAGARI
Abstract: To provide a titanium-based porous body that has high void fraction to ensure gas permeability and water permeability for practical use as an electrode and a filter, has a large specific surface area to ensure conductivity and sufficient reaction sites with a reaction solution or a reaction gas, thus showing excellent reaction efficiency, and contains less contaminants because of no organic substance used. A titanium-based porous body having a specific void fraction and a high specific surface area is obtained by filling an irregular-shaped titanium powder having an average particle size of 10 to 50 μm in a dry system without using any binder or the like into a thickness of 4.0×10−1 to 1.6 mm, and sintering the irregular-shaped titanium powder at 800 to 1100° C.
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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.
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公开(公告)号：US10442000B2
公开(公告)日：2019-10-15
申请号：US15552540
申请日：2016-02-17
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Nobuo Fukada , Osamu Kanou , Shigehisa Takenaka
Abstract: Provided are a titanium-based powder excellent in fluidity and shape retention property, and an ingot and a sintered article obtained using the titanium-based powder as a material. The titanium-based powder has an average circularity of 0.815 or more and less than 0.870, a CV value of particle sizes of 22 or more and 30 or less, and an angle of repose of 29 degrees or more and 36 degrees or less.
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70.发明授权公开(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.
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