Patents Assigned to Asahi Glass Company
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Publication number: 20180222828Abstract: The purpose of the present invention is to obtain a fluorine-containing compound which is easily stabilized without irradiation of ultraviolet light, by efficiently converting a C—I bond in an iodine-containing compound having a group represented by —CFRf—I (wherein Rf is a fluorine atom or a perfluoroalkyl group) to a C—H bond. A method for producing a fluorine-containing compound having an iodine atom content reduced than the following iodine-containing compound, which comprises subjecting an iodine-containing compound having a group represented by —CFRf—I (wherein Rf is a fluorine atom or a perfluoroalkyl group) to deiodinating treatment in the presence of an organic peroxide and a hydrogen-containing compound having a group represented by —CHR1—CHR2—CHR3— (wherein R1, R2 and R3 are each independently a hydrogen atom or an alkyl group).Type: ApplicationFiled: April 3, 2018Publication date: August 9, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventor: Atsushi Watakabe
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Publication number: 20180222789Abstract: The present invention pertains to a glass for a data storage medium substrate which contains a specific amount of each of SiO2, Al2O3, MgO, CaO, SrO, BaO, Li2O, Na2O, and K2O, in molar percentage based on the oxides, and does not substantially contain B2O3 or ZrO2, wherein the sum of the Li2O, Na2O, and K2O contents (R2O), the molar ratio of the SiO2 content to the Al2O3 content (SiO2/Al2O3), and the molar ratio of the sum of the SiO2 and Al2O3 contents (SiO2+Al2O3) to R2O [(SiO2+Al2O3)/R2O] fall within their specific ranges, formula (1): 90<[SiO2]+2×[Al2O3]+0.8×[RO]?0.5×[R2O] [in formula (1), RO represents the sum of the MgO, CaO, SrO, and BaO contents] is satisfied, and the glass transition point Tg, the alkali resistance, and the acid resistance fall within their specific ranges.Type: ApplicationFiled: April 4, 2018Publication date: August 9, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Eriko MAEDA, Hiroyuki HIJIYA, Kensuke NAGAI, Tetsuya NAKASHIMA, Yutaka KUROIWA
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Publication number: 20180222787Abstract: A glass substrate contains, as a glass matrix composition as represented by mole percentage based on oxides, SiO2: 58-75%, Al2O3: 4.5-16%, B2O3: 0-6%, MgO: 0-6%, CaO: 0-6%, SrO: 5-20%, BaO: 5-20%, and MgO+CaO+SrO+BaO: 15-40%. The glass substrate has an alkali metal oxide content of 0-0.1% as represented by mole percentage based on oxides. The glass substrate has an average coefficient of thermal expansion ? of 56-90 (×10?7/° C.) at 50° C.-350° C.Type: ApplicationFiled: March 29, 2018Publication date: August 9, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Yu HANAWA, Kazutaka Ono, Shigeki Sawamura
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Patent number: 10040972Abstract: A process of manufacturing a single-crystal silicon-carbide substrate, includes contacting a surface of a single-crystal silicon-carbide plate with a surface of a polishing pad; and moving the surface of the single-crystal silicon-carbide plate relative to the surface of the polishing pad while supplying a polishing solution to the surface the polishing pad, to polish the surface of the single-crystal silicon-carbide plate. The polishing pad comprises a non-woven fabric or a porous resin. The polishing solution comprises an oxidizing agent which comprises a transition metal having oxidation-reduction potential of 0.5 V or more. Neither the polishing pad nor the polishing solution comprises an abrasive.Type: GrantFiled: July 28, 2017Date of Patent: August 7, 2018Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Iori Yoshida, Satoshi Takemiya, Hiroyuki Tomonaga
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Patent number: 10040716Abstract: A glass sheet includes, as represented by mole percentage based on oxides, from 55.5 to 80% of SiO2, from 12 to 20% of Al2O3, from 8 to 25% of Na2O, 2.5% or more of P2O5, and 1% or more of an alkaline earth metal RO (RO is MgO+CaO+SrO+BaO).Type: GrantFiled: June 23, 2017Date of Patent: August 7, 2018Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Shuji Yamazaki, Shusaku Akiba, Seiki Ohara, Kazunari Tohyama
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Publication number: 20180215651Abstract: Provided is a chemically strengthened glass having a sheet thickness of less than 300 ?m, having a surface compressive stress of 200 MPa or more and satisfying CT?4×(t/1000+0.02)?2+90, in which an internal tensile stress is CT (MPa) and the sheet thickness is t (?m).Type: ApplicationFiled: February 12, 2018Publication date: August 2, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Shusaku AKIBA, Akio KOIKE
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Publication number: 20180215980Abstract: A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The working fluid has a low global warming potential and can replace R410A. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and an aniline point of at least ?100° C. and at most 0° C.Type: ApplicationFiled: March 27, 2018Publication date: August 2, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka, Daisuke Shirakawa, Hirokazu Takagi, Takeaki Arai
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Publication number: 20180215652Abstract: An ultraviolet light transmitting glass contains, in molar percentage on an oxide basis, 55% or more and 80% or less of SiO2; 12% or more and 27% or less of B2O3; 4% or more and 20% or less of R2O in total, where R represents at least one alkali metal selected from a group consisting of Li, Na, and K; 0% or more and 5% or less of Al2O3; 0% or more and 5% or less of R?O in total, where R? represents at least one alkaline earth metal selected from a group consisting of Mg, Ca, Sr, and Ba; 0% or more and 5% or less of ZnO; and 1.5% or more and 20% or less of ZrO2. The ultraviolet light transmitting glass with a thickness of 0.5 mm has a transmittance of 70% or more at a wavelength of 254 nm.Type: ApplicationFiled: March 29, 2018Publication date: August 2, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takahiro SAKAGAMI, Makoto SHIRATORI
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Publication number: 20180217492Abstract: A glass substrate for a mask blank includes a first surface and a second surface. The first surface and second surface face each other. Each of the first surface and the second surface is approximately square having a vertical length and a horizontal length being equal to the vertical length. The first surface of the glass substrate has specific profile properties.Type: ApplicationFiled: January 29, 2018Publication date: August 2, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventor: Yuzo OKAMURA
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Publication number: 20180215240Abstract: Provided are a vehicle windshield equipped with a transparent film at a visual field area, where a negative effect on a driving visibility due to a boundary line between a forming area and a non-forming area of the transparent film is improved, and a vehicle component having the vehicle windshield. The vehicle windshield includes: a window plate; and a transparent film provided at a surface on a vehicle-interior side of the window plate, wherein the vehicle windshield includes a first area where the transparent film is not provided and a second area where the transparent film is provided, at a central area when viewed from a front side, and a boundary between the first area and the second area has no perspective distortion and is constituted by a boundary line having line width visually recognized by scattering of irradiated light of 10 ?m to 200 ?m.Type: ApplicationFiled: March 27, 2018Publication date: August 2, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Tetsuji IRIE, Nana SATO, Jun OKAWA, Hideyuki SAITO, Akio NAGATA
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Publication number: 20180215659Abstract: The present invention provides a cover glass and a glass laminate which are reduced in warpage, and have excellent scratch resistance, low reflecting properties and excellent optical properties. According to the present invention, a cover glass and a glass laminate which are reduced in glass warpage, retain the effect of scratch resistance, and have low reflecting properties and excellent optical properties can be provided by alternately superposing a film including a high-refractive-index material and a film including a low-refractive-index material, in given amounts.Type: ApplicationFiled: January 18, 2018Publication date: August 2, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kazunobu MAESHIGE, Nobutaka AOMINE, Hiroyuki OKAWA, Kiyoshi TAMAI, Hitoshi ONODA, Makoto SANO, Yusuke KOBAYASHI
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Patent number: 10035916Abstract: To provide a composition for powder coating material which can be sufficiently pulverized, and with which a powder coating material capable of forming a coating film excellent in weather resistance and adhesion to the substrate can be obtained; a powder coating material capable of forming a coating film excellent in weather resistance and adhesion to the substrate; and a coated article having a coating film excellent in weather resistance and adhesion to the substrate, on its surface. A composition for powder coating material comprising a polyvinylidene fluoride (A) having a melting point of from 151 to 200° C., and an acrylic resin (B) having a glass transition temperature of from 40 to 90° C. A powder coating material comprising the composition for powder coating material, and a coated article having a coating film formed of the powder coating material.Type: GrantFiled: August 25, 2016Date of Patent: July 31, 2018Assignee: Asahi Glass Company, LimitedInventors: Shun Saito, Masataka Aikawa
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Patent number: 10035793Abstract: The invention provides a production method of a 1,2,4-oxadiazole derivative represented by formula (A), which comprises reacting a compound represented by formula (B) and a compound represented by formula (C) in the presence of a basic compound: wherein Ar is an aromatic group or an aromatic group having substituent(s); W, X, Y and Z are each independently —S—, —N?, —CH? or —CR?, and one selected from W, X, Y and Z is —S—; and R is an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, a haloalkyl group having 1 to 3 carbon atoms, a haloalkoxy group having 1 to 3 carbon atoms or a halogen atom.Type: GrantFiled: March 3, 2016Date of Patent: July 31, 2018Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Naoki Ichinokawa, Yu Onozaki
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Patent number: 10035898Abstract: To provide a method for producing a liquid composition or a coating liquid for forming a catalyst layer, which can make cracking less likely to occur at the time of forming a solid polymer electrolyte membrane or a catalyst layer; and a method for producing a membrane electrode assembly, which can make cracking less likely to occur at the time of forming the catalyst layer or the solid polymer electrolyte membrane.Type: GrantFiled: October 31, 2017Date of Patent: July 31, 2018Assignee: Asahi Glass Company, LimitedInventors: Satoru Hommura, Hiroyuki Watabe, Masahiro Kaseda, Toshihiro Tanuma
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Patent number: 10035726Abstract: To provide a method for producing granules as glass raw material without using a binder that contains an alkali metal or boron. In the method, granules are produced by mixing a glass raw material composition and water. A method for producing granules to be used for the production of alkali-free glass, which comprises mixing a glass raw material composition and water, wherein the glass raw material composition essentially comprises an aluminum source containing calcium aluminate represented by CaO.2Al2O3, a calcium source containing one or both of calcium oxide and calcium hydroxide, and a silicon source.Type: GrantFiled: February 26, 2016Date of Patent: July 31, 2018Assignee: Asahi Glass Company, LimitedInventors: Ryota Ando, Noriko Nishina
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Publication number: 20180208742Abstract: To provide a method for producing a crosslinked product of a fluoroelastomer having no hydrogen atom bonded to a carbon atom, by which formation of white foreign matters is suppressed, and a fluoroelastomer composition suitable for the production method. A method for producing a crosslinked product, which comprises crosslinking a fluoroelastomer composition containing a fluoroelastomer having no hydrogen atom bonded to a carbon atom, such as a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, and a fatty acid metal salt having a melting point of less than 200° C., at a crosslinking temperature higher than the melting point of the fatty acid metal salt, and a fluoroelastomer composition containing the fluoroelastomer and a fatty acid metal salt having a melting point of less than 200° C.Type: ApplicationFiled: March 22, 2018Publication date: July 26, 2018Applicant: Asahi Glass Company, LimitedInventors: Takeshi Yamada, Ken Iruya, Hiroki Nagai
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Publication number: 20180208495Abstract: The present invention provides a high-transparency glass having a high fining action at a low temperature and capable of achieving redox lowering more than before. The present invention relates to a glass containing 1 to 500 ppm of a total iron oxide (t-Fe2O3) in terms of Fe2O3, having a redox ([divalent iron (Fe2+) in terms of Fe2O3]/[total (Fe2++Fe3+) of divalent iron (Fe2+) and trivalent iron (Fe3+) in terms of Fe2O3]) of 0% or more and 25% or less, containing, as expressed by mass percentage based on oxides, 50 to 81% of SiO2, 1 to 20% of Al2O3, 0 to 5% of B2O3, 5 to 20% of Li2O+Na2O+K2O, and 5 to 27% of MgO+CaO+SrO+BaO, and having a bubble disappearance-starting temperature (TD) of 1485° C. or lower.Type: ApplicationFiled: March 23, 2018Publication date: July 26, 2018Applicant: Asahi Glass Company, LimitedInventors: Yusaku Matsuo, Yutaka Kuroiwa, Yusuke Arai, Hiroyuki Hijiya, Yuki Kondo
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Publication number: 20180213637Abstract: To provide a process for producing a wiring substrate with conduction failure in a hole formed in an electrical insulator layer suppressed even without conducting an etching treatment using metal sodium, and with unexpected deformation such as warpage suppressed even when the electrical insulator layer contains no woven fabric or non-woven fabric comprising reinforcing fibers. A process for producing a wiring substrate 1, which comprises forming a hole 20 in a laminate comprising a first conductor layer 12, an electrical insulator layer 10 which contains a specific fluororesin layer (A) 16 and a heat resistant resin layer (B) 18, contains no reinforcing fiber to substrate, and has a dielectric constant of from 2.0 to 3.5 and a linear expansion coefficient of from 0 to 35 ppm/° C.Type: ApplicationFiled: March 20, 2018Publication date: July 26, 2018Applicant: Asahi Glass Company, LimitedInventors: Tomoya HOSODA, Toru SASAKI, Nobutaka KIDERA, Tatsuya TERADA
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Publication number: 20180213641Abstract: To produce a wiring substrate having excellent electrical characteristics with conduction failure in a hole formed in a layer made of a fluororesin material sufficiently suppressed without conducting an etching treatment using metal sodium. A process for producing a wiring substrate 1, which comprises forming a hole 20 in a laminate comprising a first conductor layer 12, a layer (A) 10 which is made of a fluororesin material containing a melt-moldable fluororesin (a) having specific functional groups and a reinforcing fiber substrate and which has a dielectric constant of from 2.0 to 3.Type: ApplicationFiled: March 20, 2018Publication date: July 26, 2018Applicant: Asahi Glass Company, LimitedInventors: Tomoya HOSODA, Toru Sasaki, Nobutaka Kidera, Tatsuya Terada
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Patent number: 10029541Abstract: There is provided a laminated glass that has both of a rigidity and a sound insulating property while attaining the weight reduction. The laminated glass comprises a pair of glass plates each having a plate thickness of 0.3 mm to 1.8 mm; and an interlayer film provided between the glass plates and having a storage elastic modulus G? equal to or greater than 2.0×106 Pa at a frequency of 1 Hz and temperature of 20° C., wherein the laminated glass has a loss factor equal to or greater than 0.2 at one or more resonance points at the frequency of 3 to 6 KHz and the temperature of 20° C.Type: GrantFiled: September 23, 2016Date of Patent: July 24, 2018Assignee: ASAHI GLASS COMPANY, LIMITEDInventor: Atsushi Nakamura
