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公开(公告)号：US20230383024A1
公开(公告)日：2023-11-30
申请号：US18034015
申请日：2021-10-19
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Masayoshi Saito
CPC classification number: C08F10/06 , C01G23/006 , C01P2004/61 , C01P2006/11
Abstract: Provided is a solid catalyst component for olefin polymerization capable of suitably producing polymer particles with a suppressed content ratio of fine powder and reduced surface stickiness at high activity when subjected to polymerization of an olefin. The solid catalyst component for olefin polymerization contains magnesium, titanium, halogen and an internal electron-donating compound, in which a cross-sectional pore area ratio is 10 to 50%, and a ratio MXi/MXs of a cross-sectional pore area ratio (MXi) in a region of less than 50% in a radial direction to a cross-sectional pore area ratio (MXs) in a region of 50% or more in the radial direction from a particle center is 0.50 to 2.00.
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82.发明授权公开(公告)号：US11566677B2
公开(公告)日：2023-01-31
申请号：US16648803
申请日：2018-07-27
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Daisuke Taki , Hideki Sakai
Abstract: Provided is an alkali metal titanate which, when used as a constituent material of a friction material, is excellent in heat resistance and friction force and capable of effectively suppressing wear of a mating material disposed to face the friction material. The alkali metal titanate includes a sodium atom and a silicon atom. The content of the sodium atom is 2.0 to 8.5 mass %. The content of the silicon atom is 0.2 to 2.5 mass %. The ratio of the content of an alkali metal atom other than the sodium atom to the content of the sodium atom is 0 to 6.
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公开(公告)号：US11502305B2
公开(公告)日：2022-11-15
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：US11236189B2
公开(公告)日：2022-02-01
申请号：US16338517
申请日：2017-10-03
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Hidetoshi Umebayashi
IPC: C08F297/08 , C08F4/654 , C08F10/06
Abstract: A solid catalyst component for polymerization of olefins is disclosed which can produce a polymer having low stickiness (tackiness) of polymer particles, excellent flowability, and favorable particle size distribution. The solid catalyst component for polymerization of olefins includes titanium, magnesium, a halogen atom and an internal electron donor, wherein the solid catalyst component has a multimodal pore volume distribution measured by a mercury intrusion method and has one or more peak tops in each of a pore radius range from 0.002 μm to 1 μm and a pore radius range from larger than 1 μm to 30 μm or smaller, and a ratio represented by pore volume V1 derived from pores in the radius range from 0.002 μm to 1 μm/pore volume V2 derived from pores in the radius range from larger than 1 μm to 30 μm or smaller is 0.30 to 0.65.
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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
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.
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Patent Agency Ranking
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.-
87.发明申请公开(公告)号：US20210184224A1
公开(公告)日：2021-06-17
申请号：US17022297
申请日：2020-09-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , TOHO TITANIUM CO., LTD.
Inventor： Hiroyuki Kawai , Yosuke INOUE
IPC: H01M4/88
Abstract: A manufacturing method of a gas diffusion layer with a microporous layer includes coating a gas diffusion layer containing titanium with a precursor containing an electroconductive material, a water-repellent resin, and a polyethylene oxide, and heating the gas diffusion layer coated with the precursor to form a microporous layer containing the electroconductive material and the water-repellent resin on a surface of the gas diffusion layer. The heating atmosphere is a non-oxidation atmosphere where an oxygen concentration is no more than 0.3% by volume.
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公开(公告)号：US20210114099A1
公开(公告)日：2021-04-22
申请号：US16981905
申请日：2019-03-13
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Yasuhiko Goto , Shogo Tsumagari , Takahiro Fuji
IPC: B22F3/11
Abstract: A porous titanium-based sintered body, having a porosity of 50% to 75%, an average pore diameter of 23 μm to 45 μm, and a specific surface area of 0.020 m2/g to 0.065 m2/g, and having a bending strength of 22 MPa or more. According to the present invention, a porous titanium-based sintered body having a high porosity, a large specific surface area and a large average pore diameter and thereby having good gas permeability or liquid permeability, and further having a high strength can be provided.
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89.发明申请公开(公告)号：US20210053838A1
公开(公告)日：2021-02-25
申请号：US16979265
申请日：2018-11-13
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Daisuke TAKI , Hideki SAKAI
Abstract: An alkali metal titanate includes an alkali metal titanate phase and a composite oxide containing Al, Si and Na, wherein a percentage of a ratio of the number of moles of Na to a total number of moles of Na and alkali metal X other than Na, ((Na/(Na+X))×100), is 50 to 100 mol %, and a percentage of a ratio of a total content of Si and Al to a content of Ti, (((Si+Al)/Ti)×100), is 0.3 to 10 mass %. According to the disclosure, an alkali metal titanate having a small content of a 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 can be provided.
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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.
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