Patents Assigned to Mitsubishi Chemicals Corporation
  • Patent number: 12044812
    Abstract: A scintillator, having a composition represented by the following general formula (1), including a substitution element A, the substitution element A comprising at least La, and a total molar content of the substitution element A being 0.00001 mol or more and 0.05 mol or less in 1 mol of the scintillator, and further including an activator element B, the activator element B being constituted from Ce, having a perovskite-type crystal structure, and exhibiting a linear transmittance of light at a wavelength of 800 nm, at a thickness of 1.9 mm, of 30% or more. QMxO3y . . . (1): wherein Q represents one or more elements selected from the group consisting of Ca, Sr and Ba; M represents Hf; Q and M are each optionally substituted with other element at a proportion of 20% by mol or less; and x and y respectively satisfy 0.5?x?1.5 and 0.7?y?1.5.
    Type: Grant
    Filed: September 26, 2023
    Date of Patent: July 23, 2024
    Assignees: Mitsubishi Chemical Corporation, Tohoku University
    Inventors: Koji Hazu, Keiji Yamahara, Shunsuke Kurosawa, Akira Yoshikawa
  • Patent number: 12043730
    Abstract: The present invention aims to provide a fused deposition modeling type additive manufacturing material which has flexibility when molded into a filamentous material such as a filament, and can exhibit an excellent manufacturing property when additive manufacturing is performed using a molded product thereof, and the fused deposition modeling type additive manufacturing material according to the present invention contains: a polyvinyl alcohol-based resin; a polyethylene glycol having a weight average molecular weight of 200 to 1,000; and a carboxylic acid metal salt in an amount of 0.8 mass % or less with respect to the polyvinyl alcohol-based resin.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: July 23, 2024
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Norihito Sakai
  • Publication number: 20240243319
    Abstract: The present invention provides: [1] an aqueous electrolytic solution comprising at least one polycyclic organic compound salt selected from salts represented by general formulae (1) to (3), at least one selected from the group consisting of an alkali metal salt and an amine salt, and water, wherein the aqueous electrolytic solution has a pH of 6.5 to 12.5; and [2] a salt represented by the following general formula (4), an aqueous electrolytic solution comprising the salt, and a redox flow battery comprising the aqueous electrolytic solution, a positive electrode, a negative electrode, and a separator.
    Type: Application
    Filed: January 23, 2024
    Publication date: July 18, 2024
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroki ARAMAKI, Junichi OIZUMI
  • Publication number: 20240243286
    Abstract: An object of the present invention is to provide a carbon material that achieves both a high capacity retention rate and a low DCR retention rate even after 500 cycles, and a secondary battery using the same. The gist of the present invention is as follows. A carbon material wherein a number of peaks in the particle size distribution obtained from flow type-particle image analysis is 2 or more, a number of particles Ne calculated by the following formula (1) is 700 or more, and a specific surface area is 10 m2/g or less. A secondary battery including a positive electrode, a negative electrode, and an electrolyte, wherein the negative electrode comprises a current collector and a negative electrode active material layer disposed on the current collector, and wherein the negative electrode active material layer contains this carbon material. Ne=No×F??(1) (In formula (1), No is a number of particles of the carbon material obtained from the flow type-particle image analysis.
    Type: Application
    Filed: March 29, 2024
    Publication date: July 18, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroaki YOSHIDA, Satoshi HIRAHARA, Nobuyuki ISHIWATARI, Hisako KONDO, Ryuto YUASA, Masakazu YOKOMIZO
  • Publication number: 20240237669
    Abstract: The present invention addresses the problem of providing an oil-and-fat composition having excellent texture and the like, such as melting in the mouth suitable for food applications. The problem is solved by an oil-and-fat composition for food, which contains an oil and fat, a wax, and a sucrose fatty acid ester.
    Type: Application
    Filed: March 28, 2024
    Publication date: July 18, 2024
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Satoshi ARIMA
  • Publication number: 20240242701
    Abstract: The present disclosure provides a sound insulation sheet comprising a sheet member, and convex members arranged so as to obtain at least two peaks in a graph obtained by measuring a sound transmission loss of the sound insulation sheet, with the horizontal axis of a frequency X and the vertical axis of ?TL (dB) obtained by the following formula (1), and to have at least two of these peaks with a height of 3 dB or more; ? ? TL = TL ? 1 - TL ? 2 , ( 1 ) wherein TL1 represents a sound transmission loss (dB) of the sound insulation sheet at the frequency X, and TL2 represents a sound transmission loss (dB) of a flat sheet having no concavo-convex structure and having the same mass as that of the sound insulation sheet and the same area as that of the sheet member at the frequency X.
    Type: Application
    Filed: March 29, 2024
    Publication date: July 18, 2024
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masanari NAKAYAMA, Takeshi MATSUOKA, Haruki KOSHITOUGE
  • Publication number: 20240228744
    Abstract: The present invention relates to a polyvinyl alcohol-based resin composition containing a polyvinyl alcohol-based resin (A), in which a molding shrinkage rate in at least one direction of an MD direction and a TD direction during injection molding is 0.4% or more.
    Type: Application
    Filed: September 27, 2023
    Publication date: July 11, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yasuhiro HIRANO, Yuya KANAMORI
  • Publication number: 20240233765
    Abstract: A method for producing an optical element, comprising; performing recording exposure on a medium having a recording layer containing a polymerizable compound and a photopolymerization initiator; and further performing post exposure on the medium in a state where the temperature of the medium is lower than during the recording exposure. A method for producing an optical element, wherein the recording exposure is holographic recording exposure.
    Type: Application
    Filed: March 20, 2024
    Publication date: July 11, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuta OTSU, Ken SATO, Kazuma INOUE
  • Patent number: 12031032
    Abstract: A thermoplastic resin composition, may include a thermoplastic resin (A) and, per 100 parts by mass of the thermoplastic resin (A), from 0 to 0.2 parts by mass of a metal salt-containing flame retardant (B), and not less than 0.05 parts by mass and less than 3 parts by mass of an organopolysiloxane (C), wherein the organopolysiloxane (C) has a molecular weight distribution (Mw/Mn) in a range of from 1.01 to 1.4.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: July 9, 2024
    Assignees: Mitsubishi Engineering-Plastics Corporation, Mitsubishi Chemical Corporation
    Inventors: Yasuyuki Irie, Satoshi Mochida, Takumi Watanabe, Noriaki Terada
  • Patent number: 12030239
    Abstract: The present invention provides a molding material excellent in dimensional stability and operation safety during surface treatment after molding. The molding material according to the present invention is for use in molding by a hot melt lamination method and contains an ethylene-vinyl alcohol copolymer.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 9, 2024
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Norihito Sakai, Kenji Kato
  • Publication number: 20240218162
    Abstract: To provide a resin composition, a pellet and a molded article formed from the resin composition. The resin composition contains: 100 parts by mass of a thermoplastic resin; 5 to 50 parts by mass of a recycled carbon fiber; and 5 to 60 parts by mass of a flame retardant; wherein the recycled carbon fiber is a baked product of a composite of a resin and a carbon fiber, and comprises a residue derived from the resin at a percentage of 108 by mass or more of the content of the recycled carbon fiber.
    Type: Application
    Filed: March 19, 2024
    Publication date: July 4, 2024
    Applicants: MITSUBISHI CHEMICAL CORPORATION, SHINRYO CORPORATION
    Inventors: Shoichi TAKASHIMA, Fumihiro MUTO, Hiroyuki ARITA, Ryo SASAKA, Takayuki SUZUKI
  • Publication number: 20240218201
    Abstract: A coating agent is disclosed containing a carboxy group-containing polyvinyl alcohol-based resin, a crosslinking agent, and a modified starch. Also disclosed is an oil-resistant paper including a layer containing the coating agent.
    Type: Application
    Filed: September 22, 2023
    Publication date: July 4, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Chizuko FURO, Mayuka KURODA
  • Publication number: 20240217907
    Abstract: The present invention addresses the problem of providing: a phenol mixture optimal as a raw material for the production of an epoxy resin that can realize a high heat resistance as required in recent years; and an epoxy resin, an epoxy resin composition, a cured product, and an electrical/electronic component, in which the phenol mixture is used. The problem is solved by: a phenol mixture containing 3,3?,5,5?-tetramethyl-4,4?-biphenol as a main component, which phenol mixture further contains more than 0.3% by weight but less than 10.0% by weight of a polyphenylene ether, and 1.3% by weight to 4.0% by weight of tetramethyldiphenoquinone; and an epoxy resin, an epoxy resin composition, a cured product, and an electrical/electronic component, in which the phenol mixture is used.
    Type: Application
    Filed: January 18, 2024
    Publication date: July 4, 2024
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Kazumasa OTA
  • Publication number: 20240218159
    Abstract: To provide a pellet formed from a composition comprising 5 to 65 parts by mass of recycled carbon fibers as a heated product of carbon fiber reinforced resin, and 0.01 to 0.30 parts by mass of a metal salt-based flame retardant, relative to 100 parts by mass of a polycarbonate resin.
    Type: Application
    Filed: March 19, 2024
    Publication date: July 4, 2024
    Applicants: MITSUBISHI CHEMICAL CORPORATION, SHINRYO CORPORATION
    Inventors: Shoichi TAKASHIMA, Ryo SASAKA
  • Patent number: 12023876
    Abstract: What is provided is a method for stably producing a fiber-reinforced resin molding material by splitting a fiber bundle such that a split portion becomes long while anon-split portion is shortened. A method for producing a fiber-reinforced resin molding material in which a cut fiber bundle is impregnated with a resin, the method comprising a splitting step of splitting the fiber bundle with a splitting machine at intervals in a longitudinal direction and a cutting step of cutting the fiber bundle at intervals in the longitudinal direction after the splitting step, in which the splitting machine comprises a rotary blade having a releasing section and a spacer member adjacent to the rotary blade.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: July 2, 2024
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Junji Kanehagi, Yukihiro Mizutori, Tadao Samejima
  • Patent number: 12020676
    Abstract: An object of the present invention is to provide a sound-blocking sheet member that is relatively lightweight, has high sound-blocking performance overwhelming the law of mass action, and is excellent in terms of manufacturability and durability. The sound-blocking sheet member includes at least a sheet and a plurality of resonance portions. The resonance portion is provided in contact with a sheet surface of the sheet, and the resonance portion includes a weight portion and a base portion. The weight portion is supported by the base portion and has a larger mass than the base portion, and the weight portion has a penetration portion. The base portion is in contact with a surface on a resonance portion front end side of the weight portion and covers the weight portion.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: June 25, 2024
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Katsuhiko Sugiura, Shogo Koga, Naoyuki Uchida, Kazuma Inoue, Yukio Kato, Kohji Uehara, Masashi Miura
  • Publication number: 20240199866
    Abstract: A resin composition including: an ABS resin (A); and an ethylene-vinyl alcohol resin (B), wherein the ethylene-vinyl alcohol resin (B) includes a modified ethylene-vinyl alcohol resin (B1) having a structural unit represented by chemical formula (1), wherein X represents an organic chain having a heteroatom; and n represents a positive integer.
    Type: Application
    Filed: February 14, 2024
    Publication date: June 20, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventor: Yuuta KOBAYASHI
  • Publication number: 20240199804
    Abstract: Provided is a method for producing at least one type of thermoplastic resin selected from polycarbonate, polyester and polyester carbonate. The method includes a step of subjecting a dihydroxy compound and diaryl carbonate and/or dicarboxylic acid ester to melt polycondensation in the presence of a transesterification catalyst selected from a compound represented by formula (1) and/or formula (2). In formula (1), R1 to R24 are each a hydrogen atom, an alkyl group having 1-10 carbon atoms or a cycloalkyl group. Some of the carbon atoms may be substituted by heteroatoms. Among R1 to R24, alkyl groups or the like substituted on the same N atom may bond to each other to form a ring. The values of a to d are each 0 or 1. X? is a monovalent anion. In formula (2), Ar1 to Ar12 are each a substituted or unsubstituted aryl group. M? is a monovalent anion.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 20, 2024
    Applicants: Mitsubishi Chemical Corporation, Agency For Science, Technology & Research
    Inventors: Shohei Tomita, Toshiki Monden, Mitsunobu Ito, Cun Wang, Martin Van Meurs, Boon Ying Tay
  • Publication number: 20240191395
    Abstract: A gallium nitride crystal, containing F in which a total content of halogen elements other than F is 1/100 or less of a content of F and including a main surface 1 having an inclination of 0 degrees or more and 10 degrees or less from a (000-1) crystal plane in which the main surface 1 is a specific main surface A satisfying a specific condition regarding facet growth region in which a first line segment which is a virtual line segment extending in a first direction on the specific main surface A and having a length of 40 mm and a second line segment which is a virtual line segment extending in a second direction perpendicular to the first direction on the specific main surface A and having a length of 40 mm can be drawn, has fewer specific crystal defects and is of high quality,
    Type: Application
    Filed: February 23, 2024
    Publication date: June 13, 2024
    Applicants: MITSUBISHI CHEMICAL CORPORATION, THE JAPAN STEEL WORKS, LTD.
    Inventors: Yutaka MIKAWA, Kouhei KURIMOTO, Quanxi BAO
  • Publication number: 20240194984
    Abstract: Provided is a stampable sheet containing (A) a thermoplastic resin, (B) a flame retardant, (C) a dispersant, and (D) an inorganic fiber, wherein the content of the (D) inorganic fiber is 1 to 80% by mass based the total weight, and based on 100 parts by mass of the (B) flame retardant, the content of the (C) dispersant is more than 0 and 25 parts by mass or less. According to the present invention, it is possible to provide a stampable sheet which is excellent in strength, rigidity and flame shielding performance, and which is also excellent in workability such as stamping molding.
    Type: Application
    Filed: April 18, 2022
    Publication date: June 13, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Nobuaki Takata, Akihiro Yano, Hideyuki Shiraku, Kazunori Kawahara