公开(公告)号：US12264290B2

公开(公告)日：2025-04-01

申请号：US18009221

申请日：2021-06-07

Applicant: SHOWA DENKO K.K.

Inventor： Natsumi Shibata ,  Naoya Fukumoto ,  Tsuyoshi Kato

IPC: C10M107/38 ,  C07C43/13 ,  C08G65/22 ,  C08G65/331 ,  G11B5/725 ,  C10N40/18

Abstract: What is provided is a fluorine-containing ether compound represented by the following formula. R1—CH2—R2—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4 (In the formula, R2 and R3 are perfluoropolyether chains, and R1 and R4 are terminal groups having two or three polar groups, in which individual polar groups are bound to different carbon atoms and the carbon atoms to which the polar groups are bound are bound to each other via a linking group having a carbon atom to which the polar groups are not bound).

公开(公告)号：US12240794B2

公开(公告)日：2025-03-04

申请号：US17417599

申请日：2019-12-23

Applicant: SHOWA DENKO K.K.

Inventor： Takamitsu Kobayashi ,  Naoyuki Tanaka

IPC: C07C231/12

Abstract: A composition for producing an N-vinylcarboxylic acid amide includes (A) an N-(1-alkoxyethyl)carboxylic acid amide and (B) a carboxylic acid amide other than the N-(1-alkoxyethyl)carboxylic acid amide and the N-vinylcarboxylic acid amide, and satisfies the following conditions: (1) the composition has a melting point of 0 to 30° C.; (2) a water content is 0 to 1.00% by mass in a total amount of the composition; (3) a content ratio of the component (A) to the component (B) is 4.0 to 20.0 in terms of a molar ratio; and (4) a 5% by mass aqueous solution of the composition has a pH of 4.0 to 8.0. A method for producing an N-vinylcarboxylic acid amide includes thermally decomposing or catalytically decomposing the composition for producing an N-vinylcarboxylic acid amide.

公开(公告)号：US12152308B2

公开(公告)日：2024-11-26

申请号：US17613865

申请日：2020-12-11

Applicant: SHOWA DENKO K.K.

Inventor： Katsumi Mikami ,  Yohsuke Fukuchi ,  Hiroshi Kobayashi

IPC: C25B15/023 ,  C25B1/245 ,  C25B9/17 ,  C25B11/043 ,  C25B15/08

Abstract: A method for producing fluorine gas including electrolyzing an electrolyte in an electrolytic cell, measuring the average particle size of a mist contained in a fluid generated in the inside of the electrolytic cell in the electrolyzing the electrolyte, and sending the fluid from the inside to the outside of the electrolytic cell through a flow path. The flow path in which the fluid flows is switched in accordance with the average particle size of the mist measured in the measuring the average particle size, such that the fluid is sent to a first flow path when the average particle size of the mist measured in the measuring the average particle size is not more than a predetermined reference value, or the fluid is sent to a second flow path when the average particle size is more than the predetermined reference value.

公开(公告)号：US12134805B2

公开(公告)日：2024-11-05

申请号：US17603843

申请日：2020-03-11

Applicant: SHOWA DENKO K.K.

Inventor： Isao Murase

IPC: C22C21/06 ,  C22F1/04 ,  C23C14/06 ,  C23C16/30

Abstract: An aluminum alloy member forms a fluoride film thereon, which does not form a black dot-shaped bulged portion and, therefore, has excellent smoothness and excellent corrosion resistance against a corrosive gas, plasma, and others. An aluminum alloy member for forming a fluoride film thereon, consists of: Si: 0.01 mass % to 0.3 mass %; Mg: 0.5 mass % to 5.0 mass %; Fe: 0.05 mass % to 0.5 mass %; Cu: 0.5 mass % or less; Mn: 0.30 mass % or less; Cr: 0.30 mass % or less, and the balance being Al and inevitable impurities, wherein when an average major diameter of Fe-based crystallized products in the aluminum alloy member is “D” (μm), and an average crystalline particle diameter in the aluminum alloy member is “Y” (μm), a relational expression: Log10 Y

公开(公告)号：US12083499B2

公开(公告)日：2024-09-10

申请号：US17311437

申请日：2019-11-11

Applicant: SHOWA DENKO K.K.

Inventor： Hirotsugu Nakanishi ,  Ritsuko Wakayama

IPC: B01J20/283 ,  B01J20/10 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  G01N30/08 ,  G01N30/56 ,  G01N30/74

CPC classification number: B01J20/283 ,  B01J20/103 ,  B01J20/28004 ,  B01J20/28061 ,  B01J20/3092 ,  B01J20/3204 ,  B01J20/3219 ,  B01J20/3248 ,  G01N30/08 ,  G01N30/56 ,  G01N30/74 ,  G01N2030/565

Abstract: Provided is a guard column including a filling part having a length of 2.0 cm to 3.5 cm formed of a filler, in which the filler is made of porous silica gel having a hydrophilized surface and an average particle size of 1.5 μm to 2.5 μm, and a pressure difference when an aqueous solution is fed at a linear flow rate of 2.1 cm/min is 4.0 MPa or more.

公开(公告)号：US12066418B2

公开(公告)日：2024-08-20

申请号：US17609211

申请日：2020-11-12

Applicant: SHOWA DENKO K.K.

Inventor： Atsushi Suzuki

IPC: G01N33/00 ,  G01N21/01 ,  G01N21/25 ,  G01N21/31 ,  G01N21/33

CPC classification number: G01N33/0052 ,  G01N21/01 ,  G01N21/255 ,  G01N21/314 ,  G01N21/33 ,  G01N2021/0112

Abstract: A method for measuring the concentration of fluorine gas, which includes irradiating a halogen fluoride-containing gas with ultraviolet light in which the ratio (WX/WF) of the maximum value (WX) of ultraviolet light intensity in the wavelength region of less than 250 nm with respect to the ultraviolet light intensity (WF) at a wavelength of 285 nm is 1/10 or less, and measuring the absorbance at a wavelength of 285 nm to obtain the concentration of fluorine gas contained in the halogen fluoride-containing gas.

公开(公告)号：US20240220843A1

公开(公告)日：2024-07-04

申请号：US18556941

申请日：2022-06-07

Applicant: SHOWA DENKO K.K.

Inventor： Suguru SAKAGUCHI ,  Yoshishige OKUNO

IPC: G06N10/60 ,  G06F17/11

CPC classification number: G06N10/60 ,  G06F17/11

Abstract: An information processing system includes an annealing computing device, and a search device that converts a combinatorial optimization problem of a material composition asymptotically approaching a target physical property value into an Ising model and causes the computing device to solve the combinatorial optimization problem. The system receives a target value and a tolerable variation range of a physical property, converts a mathematical expression that formulates a combinatorial optimization problem of a material composition that asymptotically approaches the target value from a mixed material of materials having known physical property values, into the Ising model in a data format usable by the computing device, computes an optimum solution of the material composition asymptotically approaching the target value, using the Ising model, and excludes the materials included in the mixed material, from the material composition of the optimum solution computed, within the tolerable variation range, and outputs the material composition.

公开(公告)号：US12018109B2

公开(公告)日：2024-06-25

申请号：US17421061

申请日：2019-11-26

Applicant: SHOWA DENKO K.K.

Inventor： Naoki Sekioka ,  Masanao Kamijo ,  Noriko Ogawa

IPC: C08F279/02 ,  C08C19/25 ,  C08F2/26 ,  C08F2/30 ,  C08F230/08 ,  C08L11/02 ,  C09J151/04

CPC classification number: C08F279/02 ,  C08C19/25 ,  C08F2/26 ,  C08F2/30 ,  C08F230/085 ,  C08L11/02 ,  C09J151/04 ,  C09J2301/304 ,  C09J2400/143

Abstract: A method for producing a chloroprene graft copolymer latex includes a step of adding an ethylenic double bond-containing silane coupling agent (B) to a chloroprene polymer latex and graft copolymerizing the ethylenic double bond-containing silane coupling agent (B) to the chloroprene polymer (A) in the chloroprene polymer latex at 10° C. to 50° C. (inclusive). The amount of the ethylenic double bond-containing silane coupling agent (B) added is 0.4 parts by mass to 9.0 parts by mass (inclusive) per 100 parts by mass of the chloroprene polymer (A). The present invention also relates to an adhesive containing the chloroprene graft copolymer latex and to a method for using the adhesive. The present invention can provide a method for producing a chloroprene graft copolymer latex containing no organic solvent and having high adhesive strength to glass, an adhesive containing the same, and a method for using the adhesive.

公开(公告)号：US20240060888A1

公开(公告)日：2024-02-22

申请号：US18266978

申请日：2021-12-15

Applicant: SHOWA DENKO K.K

Inventor： Yasunao MIYAMURA ,  Yasushi KADOWAKI ,  Kuniaki YAMATAKE ,  Masanao HARA ,  Shigeru YAMAKI ,  Hideki OHATA

IPC: G01N21/59 ,  C08K3/08 ,  C08K7/06 ,  C08J5/18 ,  G01N21/21 ,  G01N21/84 ,  B29C55/06

CPC classification number: G01N21/59 ,  C08K3/08 ,  C08K7/06 ,  C08J5/18 ,  G01N21/21 ,  G01N21/8422 ,  B29C55/06 ,  C08K2201/011 ,  C08K2003/0806 ,  C08J2329/04 ,  B29K2029/04

Abstract: The present method for evaluating an orientation of silver nanowires is a method for measuring an orientation of silver nanowires included in a polyvinyl alcohol film, the method including measuring, using linearly polarized near-infrared light, a first transmittance T1 for polarized light perpendicular to an orientation direction of silver nanowires and a second transmittance T0 for polarized light parallel to the orientation direction of the silver nanowires in a polyvinyl alcohol film including the silver nanowires, and determining an orientation to be high in a case where a ratio (T1/T0) of the first transmittance T1 to the second transmittance T0 is greater than 1, and determining the orientation to be low in a case where the ratio is close to 1.

公开(公告)号：US20240052223A1

公开(公告)日：2024-02-15

申请号：US17793762

申请日：2022-01-28

Applicant: SHOWA DENKO K.K.

Inventor： Hajime FUNAHASHI ,  Naoki MINORIKAWA ,  Hikaru SATOH ,  Ikue KOBAYASHI ,  Hajime YUKUTAKE ,  Takeshi IEMURA

IPC: C09K5/14 ,  C08G18/36 ,  C08G18/10 ,  C08K9/02 ,  C08K9/08 ,  C08K3/22

CPC classification number: C09K5/14 ,  C08G18/36 ,  C08G18/10 ,  C08K9/02 ,  C08K9/08 ,  C08K3/22 ,  C08K2201/001 ,  C08K2201/01 ,  C08K2201/005 ,  C08K2003/2227 ,  C08K2201/014 ,  H01L23/3737

Abstract: A thermally conductive urethane resin composition comprising a castor oil-based polyol, a polyisocyanate compound, and a filler, wherein



an equivalent ratio [NCO/OH] of isocyanato groups of the polyisocyanate compound to hydroxyl groups of the castor oil-based polyol is from 0.8 to 1.6,
the filler comprises a filler (A) having an average particle diameter of 0.03 to 10 μm, and
the filler (A) has been surface-treated with a specific surface treatment agent.