Patents Assigned to Mitsui Chemicals, Inc.
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Publication number: 20240101799Abstract: [Problem] To provide a laminate having a polar resin layer, which is excellent in transparency and mechanical strength (in particular impact resistance), and a polar resin composition for forming the polar resin layer of the laminate having such properties. [Solution] A polar resin composition including 5 to 30% by mass of an ethylenic polymer (A), 40 to 85% by mass of a polar resin component (B), and 10 to 40% by mass of a modified ethylene/?-olefin copolymer (C) obtained by modifying an ethylene/?-olefin copolymer (CO) with an unsaturated carboxylic acid or a derivative thereof and having a melt flow rate (190° C., 2.16 kg load) of 0.1 to 50 g/10 minutes, provided that the sum of proportions of the (A), (B), and (C) is 100% by mass.Type: ApplicationFiled: March 9, 2022Publication date: March 28, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Nao SHIOZAKI, Kiminori NODA, Makoto EGAWA, Yuki KAI, Hiroshi HOYA
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Publication number: 20240100789Abstract: A method for manufacturing a photochromic lens includes: a step of injecting a polymerizable composition through an injection part in an injection molding apparatus and filling a gap with the polymerizable composition through a space; a step of heating the filled polymerizable composition to be polymerized and cured and forming a photochromic layer on a resin substrate; and a step of taking out a resulting laminate composed of the resin substrate and the photochromic layer, in which the polymerizable composition includes an isocyanate compound, a thiol compound, a polyol compound, and a photochromic compound.Type: ApplicationFiled: March 3, 2022Publication date: March 28, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Yuuki KASORI, Shinsuke ITO, Kouji SUESUGI
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Patent number: 11942627Abstract: A positive electrode for a lithium ion secondary battery, including a positive electrode current collector; and a positive electrode mixture layer that is provided on at least one side of the positive electrode current collector, the positive electrode mixture layer including a positive electrode active material layer, and an undercoat layer formed between the positive electrode current collector and the positive electrode active material layer, the undercoat layer containing a conductive auxiliary, a binder, and a thermally expandable microcapsule having a maximum volume expansion temperature of from 70° C. to 180° C.Type: GrantFiled: March 29, 2019Date of Patent: March 26, 2024Assignee: MITSUI CHEMICALS, INC.Inventors: Shinji Yamamoto, Yuri Endo
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Patent number: 11934045Abstract: This eyewear is provided with: a frame; a lens which is supported by the frame, and which includes an optical characteristic varying portion having an optical characteristic which is varied by means of electric control; a communication portion for receiving information from an external terminal; and a control portion for controlling the optical characteristic varying portion on the basis of the information received from the external terminal.Type: GrantFiled: September 26, 2019Date of Patent: March 19, 2024Assignee: Mitsui Chemicals, Inc.Inventors: Ryuki Kan, Takafumi Ohto, Akihiro Muramatsu, Eiichiro Hikosaka, Akifumi Aono
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Publication number: 20240084105Abstract: Provided is a polythiol composition including a polythiol compound (A) and a compound represented by the following Formula (1), wherein, in high performance liquid chromatography measurement, a peak area of the compound represented by Formula (1) is 9.0 or less with respect to a total peak area 100 of all compounds contained in the polythiol composition. In Formula (1), X represents a carbon atom or a sulfur atom.Type: ApplicationFiled: November 27, 2023Publication date: March 14, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Shotaro NAKANO, Masaru KAWAGUCHI
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Publication number: 20240084119Abstract: An object of the present invention is to provide a resin composition including a thermoplastic resin and an inorganic filler, which can easily undergo molding processing and has flexibility and a sense of massiveness, and a molded article thereof. A resin composition, including 15 to 50 parts by mass of a specific 4-methyl-1-pentene/?-olefin copolymer (A), 10 to 50 parts by mass of an inorganic filler (B), and 5 to 49 parts by mass of a thermoplastic elastomer (C) (a total amount of 4-methyl-1-pentene/?-olefin copolymer (A), inorganic filler (B), and thermoplastic elastomer (C) is 100 parts by mass), wherein the thermoplastic elastomer (C) is at least one selected from the group consisting of an olefinic thermoplastic elastomer (C1) and a styrenic thermoplastic elastomer (C2); and a molded article including the resin composition.Type: ApplicationFiled: January 20, 2022Publication date: March 14, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Yoshisada FUKAGAWA, Takayuki UEKUSA, Motoyasu YASUI
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Publication number: 20240076425Abstract: To provide a 4-methyl-1-pentene polymer being excellent in storage stability when dissolved in a solvent and solubility, and being excellent in at least one of heat resistance, and a coating appearance when a coating film is stretched, for example, when such a film is bended or used in a flexible application. A 4-methyl-1-pentene polymer (A) being a copolymer of 4-methyl-1-pentene and at least one selected from linear ?-olefins having 6 to 20 carbon atoms, the 4-methyl-1-pentene polymer (A) satisfying the following requirements (I) and (II): (I) an endotherm end temperature (TmE) in a melting (endothermic) curve measured by DSC is 230° C. or lower; and (II) an exotherm start temperature (TcS) in a crystallization (exothermic) curve measured by DSC is 210° C. or lower.Type: ApplicationFiled: February 24, 2022Publication date: March 7, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Akihiro ASANO, Masakazu TANAKA, Toyoaki SASAKI, Yusuke MIZOBUCHI, Takuya IWATA
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Publication number: 20240076304Abstract: A method of producing a monomer composition including a polymerizable group-containing phosphoric acid compound is provided. The method includes a step of allowing a polymerizable group-containing alcohol compound, which is a compound not containing a urethane bond, to react with phosphorus pentoxide in the presence of a urethane compound, thereby obtaining a monomer composition including a polymerizable group-containing phosphoric acid compound.Type: ApplicationFiled: February 7, 2022Publication date: March 7, 2024Applicant: MITSUI CHEMICALS, INC.Inventor: Naoyuki KAKINUMA
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Patent number: 11921132Abstract: An anisotropic conductive sheet according to the present invention comprises an insulating layer and a plurality of conductive layers. The insulating layer is elastic, and has a first surface that is positioned on one side in the thickness direction, a second surface that is positioned on the other side in the thickness direction, and a plurality of through holes that penetrate the layer from the first surface to the second surface. The conductive layers are respectively arranged on the inner wall surfaces of the plurality of through holes. The insulating layer comprises an elastic layer that is formed of a crosslinked product of an elastomer composition, and a heat-resistant resin layer that is formed of a heat-resistant resin composition that has a higher glass transition temperature than the crosslinked product of an elastomer composition.Type: GrantFiled: November 19, 2020Date of Patent: March 5, 2024Assignee: Mitsui Chemicals, Inc.Inventors: Katsunori Nishiura, Taichi Koyama, Daisuke Yamada
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Patent number: 11920108Abstract: An antiredeposition agent includes a polyaspartic acid alkali metal having a polydispersity, represented by the ratio (Mw/Mn) of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn), of 1.4 or more and being selected from the group consisting of lithium polyaspartate, potassium polyaspartate, and sodium polyaspartate.Type: GrantFiled: March 29, 2019Date of Patent: March 5, 2024Assignee: Mitsui Chemicals, Inc.Inventor: Akinori Shimizu
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Publication number: 20240067597Abstract: [Problem] To provide an internal donor component capable of producing, with high productivity, a propylene polymer having extremely high stereoregularity when used mainly as a solid titanium catalyst component. [Solution] A polyol ester compound having a specific polycyclic structure represented by formula (1). This ester compound is characterized in that sites including a C-R3 structure and a C-R4 structure satisfy a specific relationship.Type: ApplicationFiled: December 21, 2021Publication date: February 29, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Takaaki YANO, Wataru YAMADA, Shotaro TAKANO, Takashi KIMURA, Makoto ISOGAI, Takashi NAKANO, Sunil Krzysztof MOORTHI
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Publication number: 20240067763Abstract: The solid titanium catalyst component (I) of the present invention contains titanium, magnesium, halogen, and a cyclic multiple-ester-group-containing compound (a) represented by the following formula (1).Type: ApplicationFiled: August 26, 2021Publication date: February 29, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Takashi KIMURA, Makoto ISOGAI, Yasushi NAKAYAMA, Kenji MICHIUE, Takashi JINNAI, Wataru YAMADA, Shotaro TAKANO, Hiroshi TERAO, Takaaki YANO, Yoshiyuki TOTANI, Sunil Krzysztof MOORTHI, Takashi NAKANO
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Publication number: 20240067764Abstract: A solid titanium catalyst component (I) for olefin polymer production contains titanium, magnesium, halogen, and a cyclic multiple-ester-group-containing compound (a) represented by the formula (1). Preferably, a propylene polymer that is obtained by the olefin polymerization method and has specific thermal properties as determined primarily by differential scanning calorimetry (DSC).Type: ApplicationFiled: December 21, 2021Publication date: February 29, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Takashi KIMURA, Makoto ISOGAI, Yasushi NAKAYAMA, Kenji MICHIUE, Takashi JINNAI, Wataru YAMADA, Shotaro TAKANO, Hiroshi TERAO, Takaaki YANO, Yoshiyuki TOTANI, Sunil Krzysztof MOORTHI, Takashi NAKANO
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Publication number: 20240072356Abstract: A battery pack case which is used for forming a battery pack that is mounted at an electric vehicle, the battery pack case comprising: a tray that is attached to a body of an electric vehicle; a battery-holding member for holding a battery, the battery-holding member being attached onto at least a part of the tray; and a cover that covers the tray and the battery-holding member from above, wherein at least two of the tray, the battery-holding member, or the cover contain a fiber-reinforced plastic.Type: ApplicationFiled: January 13, 2022Publication date: February 29, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Yuri SUGIHARA, Hideaki TANAKA
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Patent number: 11914231Abstract: This lens is provided with: a transparent first substrate; a transparent second substrate provided facing the first substrate in the thickness direction of the first substrate; a first optical characteristic varying portion which is provided between the first substrate and the second substrate, and which has an optical characteristic which is varied by means of electric control; and a second optical characteristic varying portion which is provided between the first substrate and the second substrate, is provided displaced with respect to the first optical characteristic varying portion in the thickness direction, and which has a optical characteristic which is varied by means of electric control.Type: GrantFiled: September 26, 2019Date of Patent: February 27, 2024Assignee: Mitsui Chemicals, Inc.Inventors: Eiichiro Hikosaka, Yoshinobu Okada, Akifumi Aono
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Patent number: 11905348Abstract: An object of the present invention is to provide a novel ethylene/?-olefin/non-conjugated polyene copolymer containing a certain non-conjugated polyene such as VNB as a copolymerization component, having a low long-chain branching content, excellent in cure characteristics in the case of crosslinking by using peroxide, and having good processability. The ethylene/?-olefin/non-conjugated polyene copolymer according to the present invention has constitutional units derived from ethylene (A), an ?-olefin (B) having 3 to 20 carbon atoms, and a non-conjugated polyene (C) having a total of two or more partial structures selected from the group consisting of the following general formulas (I) and (II) in a molecule, and satisfies certain requirements.Type: GrantFiled: March 20, 2018Date of Patent: February 20, 2024Assignee: MITSUI CHEMICALS, INC.Inventors: Kotaro Ichino, Yoshiharu Kikuchi, Keisuke Shishido, Junpei Tanaka, Mitsunao Arino
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Publication number: 20240052086Abstract: A method of producing an optical material, which comprises a step of preparing a polymerizable composition containing a polythiol composition and a polyiso(thio)cyanate compound; a determination step which comprises measuring a content of a solvent A which is at least one selected from the group consisting of toluene, acetone, and N,N-dimethylformamide, in the polymerizable composition to check whether the content of the solvent A is within a range of from 0.10% by mass to 1.70% by mass, and, in a case in which the content of the solvent A is within a range of from 0.10% by mass to 1.70% by mass, determining the polymerizable composition as a polymerizable composition for an optical material; and a step of injecting the polymerizable composition for an optical material into a mold for resin molding and curing the same, thereby obtaining an optical material as a resin-molded product.Type: ApplicationFiled: February 1, 2022Publication date: February 15, 2024Applicant: MITSUI CHEMICALS, INC.Inventor: Marina NUKUI
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Patent number: 11897835Abstract: A method for producing an organic mercapto compound or an intermediate thereof according to the present invention has a reaction step of reacting an alcohol compound including a sulfur atom with a thioamide compound having a structure in which an organic group is bonded to at least one bonding hand of a thioamide group, under acidic conditions.Type: GrantFiled: March 29, 2019Date of Patent: February 13, 2024Assignee: MITSUI CHEMICALS, INC.Inventors: Hironori Kuboi, Kaoru Ohshimizu
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Publication number: 20240034866Abstract: A thermoplastic resin composition containing a polyamide resin (A), a compatibilizer (B) and a polyolefin resin (C), wherein the compatibilizer (B) is a modified ethylene-based elastomer that is modified with an unsaturated carboxylic acid and that has a density of 850 to 870 kg/m3, and a content proportion of the polyamide resin (A) is 15 to 30% by mass, a content proportion of the compatibilizer (B) is 15 to 30% by mass, and a compounding proportion of the polyolefin resin (C) is 45 to 65% by mass, based on 100% by mass of a total content of the polyamide resin (A), the compatibilizer (B) and the polyolefin resin (C).Type: ApplicationFiled: December 22, 2021Publication date: February 1, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Naoya KUBOTA, Tetsuya NAKAMURA, Toshiyuki ARIO, Masayuki KITO
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Patent number: 11883555Abstract: Disclosed are: a composition for hard tissue repair with excellent penetrability to an adherend such as a cancellous bone and excellent adhesion to an adherend, which comprises a monomer (A), a polymer (B), a polymerization initiator (C) and a contrast medium (X) having a volume mean particle diameter of 3 ?m or more; and a kit for hard tissue repair having members in which the components of the monomer (A), the polymer (B), the polymerization initiator (C) and the contrast medium (X) contained in this composition for hard tissue repair are encased in three or more divided groups in an optional combination.Type: GrantFiled: March 29, 2018Date of Patent: January 30, 2024Assignee: MITSUI CHEMICALS, INC.Inventors: Shinya Aoki, Kengo Goto, Takashi Miura, Tetsuya Hamada, Ayako Bando