Patents Assigned to Shin-Etsu Chemical Co., Ltd.
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Publication number: 20250144000Abstract: A hydrophobic cellulose nanofiber including (A) a cellulose nanofiber and (B) isocyanate group-containing organopolysiloxane, wherein the isocyanate group-containing organopolysiloxane is bonded to a hydroxy group of the cellulose nanofiber through a urethane bond. By this, it is possible to provide hydrophobic cellulose nanofibers that can be dispersed in liquid oils at room temperature, especially in silicone oils, and a dispersion medium for the same.Type: ApplicationFiled: February 2, 2023Publication date: May 8, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventor: Takuya ABE
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Publication number: 20250145771Abstract: An organopolysiloxane according to the present invention, having a structural unit ratio represented by formula (1), provides a room temperature-curable composition that has excellent curability and stability even when a solvent is not used, and that is capable of producing a cured product having high hardness and high transparency. (R1 and R2 each represent an alkyl group having 1-12 carbon atoms or an aryl group having 6-10 carbon atoms; k represents an integer of 1-3; m represents a number of 5-100; n represents 2 or 3; R3, R4, and R5 each represent an alkyl group having 1-12 carbon atoms, an alkenyl group having 2-8 carbon atoms, an aryl group having 6-10 carbon atoms, an aralkyl group having 7-10 carbon atoms, an alkoxy group having 1-4 carbon atoms, or a hydroxy group; and a, b, c, d, e, and f each represent a number satisfying a>0, b>0, c?0, d>0, e>0, and f?0, as well as a+b+c+d+e+f=1.Type: ApplicationFiled: January 27, 2023Publication date: May 8, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Fumihiro ASO, Akitsugu FUJIWARA
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Patent number: 12290592Abstract: Provided is a cosmetic wherein agglomeration during dispersion of a coloring pigment is suppressed, pigment irregularity in the bulk cosmetic and a coating film of the cosmetic is suppressed, and superior coloring pigment uniformity is demonstrated. An oily mixture composition including: (a) a silicone surfactant with an HLB of 6 or less; (b) an acrylic-silicone graft copolymer; (c) an oil that is liquid at 25° C.; and (d) a coloring pigment.Type: GrantFiled: March 19, 2020Date of Patent: May 6, 2025Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Seiji Watae, Chihiro Hayakawa
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Publication number: 20250140808Abstract: A negative electrode active material contains negative electrode active material particles, in which the negative electrode active material particles contain silicon oxide particles coated with a carbon layer, and the carbon layer has a peak position attributed to a G band in a range of more than 1590 cm?1 and 1597 cm?1 or less in a Raman spectrum obtained from Raman spectrometry for at least a part of the carbon layer. This can provide the negative electrode active material capable of improving cycle characteristics when used as the negative electrode active material of a secondary battery.Type: ApplicationFiled: February 9, 2023Publication date: May 1, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takuya ISHIKAWA, Takakazu HIROSE, Tetsuya OTOSAKA, Kohta TAKAHASHI
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Publication number: 20250140438Abstract: Provided are an insulating coating material for coating electric wire, which is capable of being cured at a relatively low temperature without using a high-boiling point solvent such as N-methyl-2-pyrrolidone (NMP), and provides a cured product that is excellent in balance between heat resistance, moisture resistance, insulation property, and flexibility; and an insulated wire or the like using the same. The insulating coating material for coating electric wire includes (A) a maleimide compound having a bisphenol structure and a number average molecular weight of 5,000 to 50,000, and (B) a reaction initiator. The insulated wire includes a cured film formed of the insulating coating material for coating electric wire.Type: ApplicationFiled: October 29, 2024Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Yoshihiro TSUTSUMI, Tadaharu IKEDA, Masayuki IWASAKI
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Publication number: 20250136736Abstract: A tertiary ester-containing aromatic vinyl monomer is prepared by reacting an N-acylimidazole compound with a tertiary alcohol compound in the presence of a metal alkoxide as a reaction promoter. The tertiary ester-containing aromatic vinyl monomer of quality is prepared at a high efficiency and is applicable to resist compositions adapted for the EB and EUV lithography processes.Type: ApplicationFiled: October 17, 2024Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventor: Masahiro Fukushima
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Publication number: 20250138419Abstract: The coating material for photolithography contains a surfactant having no perfluoroalkyl structure. The coating material for photolithography contains 0.0001 to 3 wt % of a surfactant made from a resin having an aromatic group substituted with a fluorine atom, a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethylthio group, or a difluoromethylthio group.Type: ApplicationFiled: July 10, 2024Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Jun Hatakeyama, Yasuyuki Yamamoto, Tomohiro Imata
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Publication number: 20250138423Abstract: A resist composition comprising a base polymer possessing a sulfonium or iodonium salt structure having an iodized arylsulfonic acid anion attached to its backbone is provided. It exhibits a high sensitivity and forms a pattern with reduced LWR or improved CDU independent of whether it is of positive or negative type.Type: ApplicationFiled: October 9, 2024Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Jun Hatakeyama, Masahiro Fukushima
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Publication number: 20250138411Abstract: A reflective photomask blank has: a substrate 10; a reflective multilayer film 20 that is formed on one main surface of the substrate 10 and reflects the exposure light; a protective film 50 formed in contact with the reflective multilayer film 20; and an absorbing film 70 that is formed on the protective film 50 and absorbs the exposure light. The protective film 50 is formed using a film containing ruthenium (Ru). The absorbing film 70 is formed using a single-layer film containing tantalum (Ta) and nitrogen (N), and has a content of nitrogen of 30 atom % or more and less than 60 atom %. Contrast between light reflected from a surface of the protective film 50 and light reflected on a surface of the absorbing film 70 with respect to light having a wavelength of 193 nm to 248 nm is 20% or more.Type: ApplicationFiled: October 24, 2024Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Takuro KOSAKA, Yukio INAZUKI, Taiga OGOSE
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Publication number: 20250136783Abstract: Provided is a thermally conductive composition that includes (A) 100 parts by mass of an organopolysiloxane that is represented by formula (1) and is a liquid at 23° C. (R3SiO1/2)a(R2SiO2/2)b(RSiO3/2)c(SiO4/2)d(O1/2X)e??(1) (in the formula, R is a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, or an alkenyl group, X is a hydrogen atom or an alkyl group, a, b, c, and d are numbers that satisfy 0?a?0.8, 0?b?0.8, 0.2?c?1, 0?d?0.8, and a+b+c+d=1, and e is a number that satisfies 0?e?0.1) and (B) 2,000-7,000 parts by mass of a thermally conductive filler. The viscosity of the thermally conductive composition at 25° C. is no more than 1,000 Pa·s.Type: ApplicationFiled: January 27, 2023Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Kazuhiro TSUCHIDA, Akihiro ENDO, Tsuneo KIMURA
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Publication number: 20250138425Abstract: A positive resist composition is provided comprising a base polymer comprising repeat units (a) having a substituted or unsubstituted carboxy group and a substituted or unsubstituted phenolic hydroxy group, repeat units (b) having an acid labile group, and repeat units (c) consisting of a sulfonic acid anion bonded to the polymer backbone and a sulfonium or iodonium cation. It exhibits a high sensitivity and resolution and forms a pattern of satisfactory profile with reduced edge roughness or dimensional variation.Type: ApplicationFiled: October 17, 2024Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Jun Hatakeyama, Masahiro Fukushima, Tatsuya Yamahira, Masaki Ohashi
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Publication number: 20250136840Abstract: According to the present invention, a cured coating having exceptional water and oil repellency and abrasion resistance as well as exceptional chucking properties can be formed by using a fluoropolyether-group-containing polymer having a silanol group or a hydrolyzable silyl group represented by formula (1) (Rf is a divalent fluoroxyalkylene-group-containing polymer residue, U is a divalent or trivalent organic group, Z is a silalkylene structure or a silarylene structure, Y is a divalent organic group, R is a C1-4 alkyl group or a phenyl group, X is a hydroxyl group or a hydrolyzable group, n is 1-3, and m is 1 or 2) as a surface treatment agent including said polymer and/or a partial (hydrolyzed) condensate thereof.Type: ApplicationFiled: September 5, 2022Publication date: May 1, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Ryusuke SAKOH, Takashi UCHIDA, Miki MOTEGI
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Publication number: 20250138410Abstract: A reflective photomask blank has a substrate 10; and a multilayer reflective film 50. The multilayer reflective film 50 has a periodic stacked structure in which a low refractive index layer 30 containing ruthenium (Ru), a high refractive index layer 20 containing silicon (Si), and a diffusion prevention layer 40. The diffusion prevention layer 40 is formed in contact with the low refractive index layer 30 on both or one of a side of the low refractive index layer 30 close to the substrate 10 and a side of the low refractive index layer 30 away from the substrate 10. The diffusion prevention layer 40 is one or more sublayers selected from a layer containing a silicon nitride (SiN), a layer containing silicon carbide (Sic), a layer containing molybdenum (Mo), a layer containing a molybdenum nitride (MoN), and a layer containing molybdenum carbide (MoC).Type: ApplicationFiled: October 4, 2024Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Taiga OGOSE, Yukio INAZUKI, Hideo KANEKO, Takuro KOSAKA
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Publication number: 20250138418Abstract: A resist composition comprising an acid generator containing a sulfonium or iodonium salt of an arylsulfonic acid substituted with at least two iodine atoms is provided. It exhibits a high sensitivity and forms a pattern with reduced LWR or improved CDU independent of whether it is of positive or negative type.Type: ApplicationFiled: October 9, 2024Publication date: May 1, 2025Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Jun Hatakeyama, Masahiro Fukushima
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Patent number: 12285486Abstract: A pharmaceutical composition including an extruded solid and one or more pharmaceuticals or nutraceuticals is provided. The extruded solid includes hydroxypropylmethylcellulose acetate succinate and isomalt.Type: GrantFiled: December 28, 2020Date of Patent: April 29, 2025Assignees: Shin-Etsu Chemical Co., Ltd.Inventors: Jiannan Lu, Sakae Obara
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Patent number: 12288688Abstract: A photomask is manufactured from a photomask blank including a transparent substrate, a first inorganic film which comprises silicon and is free of chromium, and a second inorganic film which comprises chromium and is free of silicon, and is in contact with the first inorganic film by a method including steps of forming a pattern of the second inorganic film by fluorine-based dry etching with using a resist pattern, and forming a pattern of the first inorganic film by fluorine-based dry etching with using the pattern of the second inorganic film.Type: GrantFiled: June 22, 2021Date of Patent: April 29, 2025Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventor: Kouhei Sasamoto
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Patent number: 12286568Abstract: One of the purposes of the present invention is to provide a composite heat-release sheet which is excellent in thermal conductivity and electrical insulation property and, at the same time, has all of sufficient adhesion to an actual machine, low thermal resistance, reworkability, and reliable adhesive strength. Another purpose is to provide a more convenient production process for the heat-release sheet.Type: GrantFiled: February 4, 2020Date of Patent: April 29, 2025Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takanori Ito, Akihiro Endo
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Publication number: 20250129203Abstract: The present invention is a composition for forming an organic film, containing: (A) a material for forming an organic film; (B) a polymer having a repeating unit represented by the following general formula (1); and (C) a solvent, where W1 represents a saturated or unsaturated divalent organic group having 2 to 50 carbon atoms and having one or more fluorine-containing structures represented by the following formulae (2), and W2 represents a saturated or unsaturated divalent organic group having 2 to 50 carbon atoms. This can provide: a composition for forming an organic film which is excellent in film-formability on a substrate and filling property, suppresses humps in an EBR process, and has an excellent process margin when used for an organic film for a multilayer resist process; a method for forming an organic film, using the composition; a patterning process; and a polymer to be contained in the composition for forming an organic film.Type: ApplicationFiled: October 11, 2024Publication date: April 24, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Daisuke KORI, Yasuyuki YAMAMOTO
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Publication number: 20250129209Abstract: The present invention is a composition for forming a resist underlayer film, containing: (A) a polyether compound containing a repeating unit represented by the following general formula (I); and (B) an organic solvent, where Ar1 represents a substituted or unsubstituted aryl group having 6 to 30 carbon atoms or the like, R1 represents a substituted or unsubstituted, linear, branched, or cyclic, saturated or unsaturated divalent hydrocarbon group having 1 to 20 carbon atoms or a substituted or unsubstituted, linear, branched, or cyclic heteroalkylene group having 1 to 20 carbon atoms, and “n” and “m” each represent an integer of 0 or more. This can provide a composition for forming a resist underlayer film with which it is possible to form a resist underlayer film that exhibits excellent processing resistance and excellent gas permeability.Type: ApplicationFiled: October 8, 2024Publication date: April 24, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Shohei IWAMORI, Hironori SATOH, Daisuke KORI
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Publication number: 20250133797Abstract: A crystalline oxide film containing gallium as a main component, in which when CuK? rays are made incident on the crystalline oxide film to perform X-ray diffraction, a reflection output in scanning ? and 2? has a local maximum point when 16.20°<2?<39.90° and 20.30°<?<32.20° at an angle ? around a ? axis orthogonal to a surface of the crystalline oxide film at the angle ? where a peak attributable to the crystalline oxide film by ?-2? measurement is maximum, and 40.10°<?+?<40.40° relative to ? and ? at which the reflection output reaches a maximum is satisfied. This provides the crystalline oxide film, a laminated structure, a semiconductor device with excellent semiconductor properties, particularly excellent withstand voltage, and a method for producing a crystalline oxide film.Type: ApplicationFiled: January 17, 2023Publication date: April 24, 2025Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takenori WATABE, Hiroshi HASHIGAMI, Takahiro SAKATSUME