公开(公告)号：US20240116849A1

公开(公告)日：2024-04-11

申请号：US17920921

申请日：2022-06-07

Applicant: TOKUYAMA CORPORATION

Inventor： Akihiro SAITO ,  Naoto MOCHIZUKI

IPC: C07C209/68 ,  B01J19/02 ,  B01J19/24

CPC classification number: C07C209/68 ,  B01J19/02 ,  B01J19/243 ,  B01J2219/00033 ,  B01J2219/00166 ,  B01J2219/0295 ,  B01J2219/182

Abstract: Provided are a manufacturing method and a manufacturing apparatus for efficiently manufacturing a halogen oxoacid solution with a high quality and excellent industrial properties. Specifically, a manufacturing method and a manufacturing apparatus of a halogen oxoacid are provided. The manufacturing method and the manufacturing apparatus include continuously supplying an organic alkaline solution and a halogen from a first end to a second end of a reaction tube so that liquid phase parts and/or gas phase parts are alternately and repeatedly provided in a transfer passage of the reaction tube, to perform gas-liquid mixing of the organic alkaline solution and the halogen at the liquid phase parts and/or gas phase parts.

公开(公告)号：US20240101751A1

公开(公告)日：2024-03-28

申请号：US18274188

申请日：2022-01-27

Applicant: TOKUYAMA CORPORATION

Inventor： Yasutomo SHIMIZU ,  Kazuishi FUKUDA ,  Takayoshi KAWASAKI

IPC: C08G18/48 ,  B24B37/24 ,  C08G18/76 ,  C08L29/04

CPC classification number: C08G18/4883 ,  B24B37/24 ,  C08G18/7621 ,  C08L29/04

Abstract: The hollow microballoon of the invention includes a resin produced by polymerizing a polymerizing composition that contains a cyclic molecule having at least three side chains with a polymerizable functional group introduced into the terminal thereof and a polymerizable monomer other than the cyclic molecule having at least three side chains with a polymerizable functional group introduced into the terminal thereof. According to the invention, there are provided hollow microballoon capable of imparting not only polishing characteristics but also excellent durability to a CMP polishing pad using the hollow microballoon.

公开(公告)号：US11932964B2

公开(公告)日：2024-03-19

申请号：US17601452

申请日：2020-04-02

Applicant: Tokuyama Corporation

Inventor： Takuya Asano ,  Kouichi Saiki ,  Miki Emoto ,  Tooru Onoda

IPC: C30B29/06 ,  C30B15/04 ,  C30B30/00

CPC classification number: C30B29/06 ,  C30B15/04 ,  C30B30/00

Abstract: A polycrystalline silicon material for producing silicon single crystal, containing a plurality of polycrystalline silicon chunks, in which assuming that a total concentration of donor elements present inside a bulk body of the polycrystalline silicon material is Cd1 [ppta], a total concentration of acceptor elements present inside the bulk body of the polycrystalline silicon material is Ca1 [ppta], a total concentration of the donor elements present on a surface of the polycrystalline silicon material is Cd2 [ppta], and a total concentration of the acceptor elements present on the surface of the polycrystalline silicon material is Ca2 [ppta], Cd1, Ca1, Cd2, and Ca2 satisfy a relation of 5 [ppta]≤(Ca1+Ca2)−(Cd1+Cd2)≤26 [ppta].

公开(公告)号：US11905499B2

公开(公告)日：2024-02-20

申请号：US17281712

申请日：2019-09-30

Applicant: TOKUYAMA CORPORATION

Inventor： Shunsuke Hosaka ,  Masanari Ishizuki

IPC: C11D7/50 ,  C11D7/26 ,  C07C29/80 ,  C11D11/00

CPC classification number: C11D7/261 ,  C07C29/80 ,  C11D7/5022 ,  C11D11/0047

Abstract: Provided is a high-purity isopropyl alcohol in which the concentration of a C7-12 acetal compound is 100 ppb or less on a mass basis, the concentration of the acetal compound in an accelerated test involving heating for 4 hours at 80° C. in a nitrogen atmosphere is increased by a factor of 30 or less with respect to the value thereof prior to heating, and the concentration of the acetal compound is maintained at a value of 100 ppb or less on a mass basis. Also provided is a method for manufacturing said high-purity isopropyl alcohol.

公开(公告)号：US11884596B2

公开(公告)日：2024-01-30

申请号：US17256114

申请日：2019-06-24

Applicant: TOKUYAMA CORPORATION

Inventor： Hironobu Fujimoto ,  Tsuyoshi Ikeda

IPC: C04B35/626 ,  C04B35/581 ,  B01D1/18 ,  B01J2/04

CPC classification number: C04B35/62695 ,  C04B35/581 ,  C04B35/62625 ,  B01D1/18 ,  B01J2/04 ,  C04B2235/5436

Abstract: The present invention aims to provide a method for producing granules for ceramic production, the method having high productivity and making it possible to obtain a ceramic which, when produced by press molding the granules and firing the resulting press molded product, has physical properties kept from lowering. The present invention is characterized by including: a slurry preparation step of preparing a slurry including a mixture containing a powder of an inorganic compound, a binder, and a solvent; a granulation step of introducing the slurry into a spray drying device to form a granulated substance containing the inorganic compound; an exhaust step of exhausting an atmospheric gas within the spray drying device via a cyclone having a surface made of ceramic; and a step of mixing a fine powder, which has been recovered by the cyclone during the exhaust step, with the granulated substance obtained in the granulation step.

公开(公告)号：US20230365739A1

公开(公告)日：2023-11-16

申请号：US18019153

申请日：2021-08-04

Applicant: TOKUYAMA CORPORATION

Inventor： Yasutomo SHIMIZU ,  Kazuishi FUKUDA ,  Takayoshi KAWASAKI

IPC: C08G18/42 ,  C08G18/12 ,  B24B37/22 ,  B24B37/24 ,  C09K9/02 ,  C08G18/64 ,  C08K7/22 ,  C08G18/08 ,  C08G18/32

CPC classification number: C08G18/42 ,  C08G18/12 ,  B24B37/22 ,  B24B37/24 ,  C09K9/02 ,  C08G18/64 ,  C08K7/22 ,  C08G18/14 ,  C08G18/3243 ,  C08K2201/003 ,  C08G2101/00

Abstract: The present invention relates to a curable composition containing (A) a side chain-containing cyclic molecule in which three or more side chains each having a polymerizable functional group introduced at a terminal are introduced ((A) cyclic polyfunctional monomer), and (B) a polymerizable monomer having a polymerizable functional group polymerizable with the side chain-containing cyclic molecule ((B) another polymerizable monomer). The present invention provides a curable composition from which a cured article having high abrasion resistance and enabling exhibition of excellent mechanical properties and photochromic properties is obtained. In particular, the present invention can provide a curable composition from which a cured article suitable for use as a polishing pad or a photochromic spectacle lens can be obtained.

公开(公告)号：US20230313413A1

公开(公告)日：2023-10-05

申请号：US18022417

申请日：2022-08-17

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki FUKUDA ,  Reo YAMAMOTO

IPC: C30B23/02 ,  C30B33/00 ,  B08B3/08 ,  B08B3/12 ,  C11D7/24 ,  C30B29/40 ,  C11D7/30

CPC classification number: C30B33/00 ,  B08B3/08 ,  B08B3/12 ,  C11D7/24 ,  C11D7/30 ,  C30B23/02 ,  C30B29/403

Abstract: Provided are a method of cleaning a group III nitride single crystal substrate which enables the roughness of a nitrogen-polar face of the group III nitride single crystal substrate to be suppressed to remove foreign substances, and a method of producing a group III nitride single crystal substrate. The method of cleaning a group III nitride single crystal substrate having a group III element-polar face, and the nitrogen-polar face opposite the group III element-polar face includes: cleaning the nitrogen-polar face with a detergent including a fluoroorganic compound.

公开(公告)号：US11767467B2

公开(公告)日：2023-09-26

申请号：US17258375

申请日：2019-07-18

Applicant: TOKUYAMA CORPORATION

Inventor： Takao Noguchi ,  Junji Takenaka ,  Junji Momoda ,  Takayoshi Kawasaki ,  Yasutomo Shimizu ,  Masayuki Miyazaki

IPC: C09K9/02 ,  C08G65/333 ,  G02B1/04

CPC classification number: C09K9/02 ,  C08G65/33396 ,  C09K2211/1475 ,  G02B1/04

Abstract: The present invention relates to a photochromic compound including a polyvalent residue on which at least one group having a photochromic moiety is substituted, and at least one long-chain group not containing a photochromic moiety and having a molecular weight of 300 or more is further substituted; and a curable composition containing the same. In accordance with the present invention, it is possible to provide a photochromic compound which has high solubility in a polymerizable compound serving as a matrix while retaining high photochromic characteristics and is hardly affected by the matrix; and a curable composition containing the same.

公开(公告)号：US20230265053A1

公开(公告)日：2023-08-24

申请号：US17927182

申请日：2021-05-27

Applicant: TOKUYAMA CORPORATION

Inventor： Yasutomo SHIMIZU ,  Takayoshi KAWASAKI

IPC: C07C309/18 ,  C07D233/58 ,  C08G18/38 ,  C08G18/08 ,  C08G18/10 ,  B24B37/24

CPC classification number: C07C309/18 ,  B24B37/24 ,  C07D233/58 ,  C08G18/10 ,  C08G18/0828 ,  C08G18/3857

Abstract: The polyfunctional active hydrogen group-containing sulfonate quaternary ammonium salt of the present invention is a polyfunctional active hydrogen group-containing sulfonate quaternary ammonium salt having at least two active hydrogen groups in a molecule, and the polyfunctional active hydrogen group-containing sulfonate quaternary ammonium salt has a quaternary ammonium salt skeleton of the polyfunctional active hydrogen group-containing sulfonate quaternary ammonium salt that includes an imidazole skeleton. According to the present invention, a polyfunctional active hydrogen group-containing sulfonate quaternary ammonium salt that is excellent in solubility and dispersibility in a polyurethane (urea) resin raw material, and a high effect of the hydrophilization of a polyurethane (urea) resin can be provided.

公开(公告)号：US20230257277A1

公开(公告)日：2023-08-17

申请号：US18012100

申请日：2021-04-19

Applicant: Tokuyama Corporation

Inventor： Shingo HIRANAKA ,  Kentarou MATSUO

IPC: C01F11/46 ,  C02F11/125 ,  B09B3/32 ,  B03B5/48

CPC classification number: C01F11/468 ,  C02F11/125 ,  B09B3/32 ,  B03B5/48

Abstract: Aqueous slurry which includes solid foreign matter and paper dust is pressed by means of a screw press, provided with a mesh having openings not less than 1.5 mm and not greater than 3 mm, to separate the aqueous slurry into the solid foreign matter and the paper dust, and liquid component passing through the mesh. Then, the liquid component is sieved by means of a sieve having openings not greater than 1 mm to separate from the liquid component the solid foreign matter and the paper dust.