Patents Assigned to Mitsubishi Chemical Corporation
  • Partition member and assembled battery
    Patent number: 11626635
    Abstract: A partition member has a thickness direction and a surface direction perpendicular to the thickness direction, and which separates single cells that make up an assembled battery in the thickness direction, or a single cell that makes up the assembled battery in the thickness direction and a member other than the single cells. The partition member includes, in the interior thereof, a fluid having a boiling point at normal pressure of 80° C. to 250° C., and a flow channel of the fluid extending along the surface direction. The fluid is held in a fluid holding part, and the fluid holding part is hermetically sealed by a packaging material.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: April 11, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tomohiro Kawai, Yoko Watanabe, Iwao Soga
  • Color display device, vehicle interior/exterior member, lamp for panel light, signboard for display and vehicle
    Patent number: 11623518
    Abstract: A color display device (D) is provided, including a colored light-transmitting base material (10), a light-blocking base material, and a light source unit (30) that has at least a part located between the colored light-transmitting base material (10) and the light-blocking base material (20), in which the colored light-transmitting base material (10) has a total light transmittance of 18% or less, and in which the light source unit (30) is disposed such that emission light transmits through the colored light-transmitting base material (10), the color display device having excellent designability and high luminance.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: April 11, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takao Marutani, Tadayoshi Sawada
  • CONDUCTIVE COMPOSITION, METHOD FOR PRODUCING CONDUCTIVE COMPOSITION, AND METHOD FOR PRODUCING CONDUCTOR
    Publication number: 20230107107
    Abstract: A conductive composition including a conductive polymer (A), a water-soluble polymer (B) other than the conductive polymer (A), and a solvent (C), wherein a peak area ratio is 0.44 or less, which is determined based on results of analysis performed using a high performance liquid chromatograph mass spectrometer with respect to a test solution obtained by extracting the water-soluble polymer (B) from the conductive composition with n-butanol, and calculated by formula (I): Area ratio=Y/(X+Y) wherein X is a total peak area of an extracted ion chromatogram prepared with respect to ions derived from compounds having a molecular weight (M) of 600 or more from a total ion current chromatogram, Y is a total peak area of an extracted ion chromatogram prepared with respect to ions derived from compounds having a molecular weight (M) of less than 600 from the total ion current chromatogram.
    Type: Application
    Filed: December 9, 2022
    Publication date: April 6, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Akira YAMAZAKI, Shinji SAIKI, Yoshiko IRIE, Masashi UZAWA
  • MODIFIED ETHYLENE-VINYL ALCOHOL RESIN, AND GAS BARRIER MATERIAL
    Publication number: 20230107588
    Abstract: A modified EVOH resin having a primary hydroxyl group in its side chain. In the modified EVOH resin, the proportion of an ethylene structural unit is 1 to 16.5 mol %, and the proportion of a structural unit containing the side-chain primary hydroxyl group is not less than 2.5 mol %.
    Type: Application
    Filed: November 16, 2022
    Publication date: April 6, 2023
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masato AOYAMA, Masanori SAKAIDA, Yohei KONISHI
  • Electrophotographic Photoreceptor, Electrophotographic Photoreceptor Cartridge, and Image Formation Device
    Publication number: 20230108399
    Abstract: To provide an image formation device that is capable of printing without problems in chargeability, leak resistance, gas resistance, and abrasion resistance, even with a contact charging system, and an electrophotographic photoreceptor and an electrophotographic photoreceptor cartridge used in the image formation device. The problem can be solved by an image formation device of a contact charging system including a positively charging electrophotographic photoreceptor including a single layer photosensitive layer and an over coat layer containing a cured product formed by curing a curable compound.
    Type: Application
    Filed: September 27, 2022
    Publication date: April 6, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventor: Daisuke Yamazaki
  • BIODEGRADABLE RESIN COMPOSITION AND BIODEGRADABLE RESIN MOLDED ARTICLES
    Publication number: 20230108915
    Abstract: A biodegradable resin composition containing a resin and a protein, the resin being contained in an amount of 40 to 99.9% by mass in the resin composition, the resin containing a polyester-based resin, the polyester-based resin having three or more structural units, at least one of the structural units being a succinic acid unit, an azelaic acid unit, a sebacic acid unit, or a brassylic acid unit. The biodegradable resin composition can increase the speed of biodegradation and the percentage of degradation of a polyester-based resin in the sea and has good moldability. A molded article of the biodegradable resin composition. A method of biodegrading a polyester-based resin, by biodegrading the polyester-based resin in sea water in the presence of a protein.
    Type: Application
    Filed: November 25, 2022
    Publication date: April 6, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Ryo MURAKAMI, Remi MIYAMACHI
  • TRANSPARENT DOUBLE-SIDED SELF-ADHESIVE SHEET
    Publication number: 20230109620
    Abstract: A transparent double-sided self-adhesive sheet is provided which, when bonding to an adherend, not only excels in the ability to conform to steps or surface irregularities caused by a printing site, but also excels in workability such as cutting processability. A transparent double-sided self-adhesive sheet is proposed, having an intermediate resin layer (A) and pressure-sensitive adhesive layers (B) as front and reverse side layers, each of the layers being a layer having one or more species of (meth)acrylic acid ester series (co)polymer as the base resin, in which transparent double-sided self-adhesive sheet, the shear storage elastic modulus (G?(A)) at a frequency of 1 Hz of the intermediate resin layer (A) is higher than the pressure-sensitive adhesive layers (B) in a temperature range of 0° C. to 100° C., and, the indentation hardness (ASKER C2 hardness) of the entire sheet is 10 to 80.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 6, 2023
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kahoru NIIMI, Hidejirou YOSHIKAWA, Tetsuya YAMAOKA, Makoto INENAGA
  • FERMENTED MILK AND METHOD FOR PRODUCING SAME
    Publication number: 20230107719
    Abstract: The present invention provides fermented milk with modified flavor and/or texture, fermented milk with a suppressed acidity increase during storage, and a production method therefor. Fermented milk according to the present invention comprises a food emulsifier. The method for producing fermented milk according to the present invention comprises the steps of: preparing a raw material composition containing a food emulsifier; and adding a lactic acid bacterium starter to the raw material composition for fermentation.
    Type: Application
    Filed: October 21, 2022
    Publication date: April 6, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Nobuyuki SAKURADA, Hideyuki HARA
  • Thermosetting resin composition, prepreg, and fiber-reinforced composite material and production method therefor
    Patent number: 11618803
    Abstract: Provided is a thermosetting resin composition which achieves both high heat resistance and high bending strength as a fiber-reinforced composite material, and also has rapid curability that enables high cycle press forming, thermal stability, and storage stability. The thermosetting resin composition of the present invention is a thermosetting resin composition comprising an epoxy resin, an epoxy resin curing agent, an imidazole compound, and an epoxy resin curing accelerator, in which the epoxy resin curing agent is dicyandiamide or a derivative thereof, and the epoxy resin curing accelerator comprises a urea derivative having two or more dimethylureido groups in a molecule.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: April 4, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takuya Teranishi, Masahiro Ichino, Akira Oota
  • Method for Producing Slit Carbon Fiber Bundle, Carbon Fiber Package, and Method for Producing Carbon Fiber Package
    Publication number: 20230103035
    Abstract: Provided is an improvement in a method for manufacturing a slit carbon fiber bundle. The method for manufacturing a slit carbon fiber bundle of the present invention is a method including a step of forming a resin film on one surface of a flat carbon fiber bundle to obtain a single-sided coated carbon fiber bundle, and a step of partially slitting the single-sided coated carbon fiber bundle using a slitter roll to obtain a slit carbon fiber bundle, which has been split into sub-bundles, wherein in the step of slitting, the single-sided coated carbon fiber bundle contacts a circumferential surface of the slitter roll on a surface where the resin film has been formed.
    Type: Application
    Filed: December 2, 2022
    Publication date: March 30, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Satoshi Okamoto, Yukihiro Mizutori, Junji Kanehagi
  • Ethylene-vinyl alcohol copolymer composition, pellets, and multilayer structure
    Patent number: 11613642
    Abstract: An ethylene-vinyl alcohol copolymer composition contains: (A) an ethylene-vinyl alcohol copolymer including two or more types of ethylene-vinyl alcohol copolymers having different ethylene structural unit contents; and (B) an iron compound; wherein the iron compound (B) is present in an amount of 0.01 to 5 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition. The ethylene-vinyl alcohol copolymer composition is substantially free from coloration and excellent in heat stability.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: March 28, 2023
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shintaro Usui, Daichi Nishimura, Minako Ikeshita
  • Nonaqueous electrolyte for secondary battery and nonaqueous-electrolyte secondary battery employing the same
    Patent number: 11616253
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: March 28, 2023
    Assignees: Mitsubishi Chemical Corporation, MU IONIC SOLUTIONS CORPORATION
    Inventors: Hiroyuki Tokuda, Minoru Kotato, Shinichi Kinoshita
  • Radiation Detection Device and Radiographic Imaging Device Comprising Radiation Detection Device and Image Conversion Unit
    Publication number: 20230090649
    Abstract: Provided is a radiation detection device, comprising: a radiation detection unit consisting of two or more radiation detection elements each constituted by a pair of electrodes consisting of a first electrode and a second electrode and a radiation absorption layer that is sandwiched between the pair of electrodes, the two or more radiation detection elements being arranged in a surface direction of the radiation absorption layer; and one or more power supply units electrically connected to the first electrode, wherein the radiation detection unit comprises two or more of the first electrodes to which mutually different voltages are applied.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 23, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Shigeki Hattori, Koji Hazu
  • Method for Treating Wastewater
    Publication number: 20230093040
    Abstract: The present invention relates to a method for treating wastewater containing a furan compound, a microbial preparation for use in the method, a method for high density culture of a microorganism for use in the above method, and a method for producing a microbial preparation by using the culture method.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 23, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Akihiro Shimamoto, Yasuhito Yamamoto, Shuichi Yunomura, Takatoshi Kimura, Michiru Kamizono
  • Polycarbonate polyol and polyurethane
    Patent number: 11608405
    Abstract: Provided is a polycarbonate polyol used as a raw material of a polyurethane that has an excellent balance of flexibility, mechanical strength and solvent resistance. The polycarbonate polyol includes structural units derived from a polyhydric alcohol and has a hydroxyl value of 20 to 450 mg KOH/g. The polyhydric alcohol includes: a diol (A) containing not less than 70% by weight of a specific oxyalkylene glycol (A1); and a trihydric to hexahydric branched alcohol (B) having 3 to 12 carbon atoms. In the polycarbonate polyol, structural units derived from the branched alcohol (B) is contained in an amount of 0.005 to 5.0% by mole in the structural units derived from the polyhydric alcohol. A ratio of a structural unit (X1) represented by the following Formula (X1) in the structural units derived from the branched alcohol (B) is not higher than 50% by mole.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 21, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yuta Hioki, Yoshikazu Kanamori, Kazunao Kusano, Kazuki Wakabayashi, Ryo Yamashita, Takayuki Yamanaka
  • Polyorganosiloxane, polyorganosiloxane composition, cured product, polyorganosiloxane-containing electrolytic solution for electrolytic capacitor, and electrolytic capacitor using same
    Patent number: 11608415
    Abstract: Provided are a polyorganosiloxane high in elasticity, high in strength and the like. The polyorganosiloxane is a polyorganosiloxane including an M unit (R1R2R3SiO1/2) at a content of 10% by mol or more relative to the total of silicon and a T unit (R6SiO3/2) at a content of 80% by mol or less relative to the total of silicon, the polyorganosiloxane having an alkoxy group bound and a reactive functional group bound to silicon, wherein the polyorganosiloxane has the alkoxy group bound at a content of 0.07 to 4% by weight based on the total weight of the polyorganosiloxane and has 3 to 12 of the reactive functional groups bound on a number basis per a molecular weight of 1000 of the polyorganosiloxane, and the weight loss of the polyorganosiloxane in heating at 110° C. under a reduced pressure of 0.15 torr for 2 hours is 5% by weight or less.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: March 21, 2023
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Takumi Watanabe, Noriaki Terada, Tsuyoshi Nagasaka, Shogo Koga, Kazuma Inoue, Kazunari Matsumura, Naomi Fujimori, Hiroo Miyauchi, Akemi Hosokawa
  • CFRP Structural Body, Method for Manufacturing CFRP Structural Body, Carbon Fiber Prepreg, and Method for Manufacturing Carbon Fiber Prepreg
    Publication number: 20230080782
    Abstract: The present disclosure relates to a CFRP structural body having improved flame retardancy, and a carbon fiber prepreg capable of giving a CFRP structural body having improved flame retardancy. A CFRP structural body comprising CFRP, in which the CFRP structural body is molded from a carbon fiber prepreg comprising a carbon fiber mat formed of chopped carbon fiber bundles with a filament count of 3K or less impregnated with a resin composition, a carbon fiber content of the CFRP is 60% by mass or more, and the CFRP structural body does not have a portion with a thickness of less than 4 mm; and a prepreg comprising a carbon fiber mat impregnated with a resin composition, in which the carbon fiber mat is formed of chopped carbon fiber bundles with filament counts of 3K or less, and a carbon fiber content of the prepreg is 60% by mass or more.
    Type: Application
    Filed: September 6, 2022
    Publication date: March 16, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventor: Yukichi Konami
  • ETHYLENE-VINYL ALCOHOL COPOLYMER RESIN COMPOSITION, MULTILAYER STRUCTURE, AND PACKAGE
    Publication number: 20230080425
    Abstract: A resin composition containing an ethylene-vinyl alcohol copolymer (A), a polyamide resin (B), acetic acid and/or its salt (C), an aliphatic carboxylic acid (D) other than acetic acid, and an aliphatic carboxylic acid metal salt (E) which is a metal salt of (D), wherein: the metal moiety of (E) is selected from elements belonging to the Long Periodic Table 4th-period d-block, the weight ratio (A)/(B) is 99/1 to 15/85, the amounts of (C), (D), and (E) on a weight basis satisfy expressions (1) and (2): 0.001?(Amount of (E) on metal ion basis)/(Amount of (C) on acetate ion basis)?1.5??(1) 0.11?(Amount of (E) on metal ion basis)/(Amount of (D) on carboxylate ion basis)?100??(2), and the elongational viscosity of the resin composition at 210° C. at 100 S?1 satisfies expression (3): 350?(Elongational viscosity(Pa·s))?47,000??(3).
    Type: Application
    Filed: November 16, 2022
    Publication date: March 16, 2023
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Ryohei KOMURO
  • Method to prepare composite graphite particles for nonaqueous secondary battery negative electrode, active material for nonaqueous secondary battery negative electrode, and nonaqueous secondary battery
    Patent number: 11605810
    Abstract: The invention relates to composite graphite particles for a nonaqueous secondary battery negative electrode containing graphite (A) and metal particles (B) capable of alloying with Li, wherein the degree of dispersion of the metal particles (B) in the composite graphite particles is 0.78 or more and the internal void fraction of the composite graphite particles is 3% or more and 40% or less.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: March 14, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akio Ueda, Satoshi Akasaka, Nobuyuki Ishiwatari, Junko Kagimoto, Shingo Morokuma
  • Diverting agent and method of filling fracture in well using the same
    Patent number: 11597870
    Abstract: A problem to be solved of the present invention is to provide a diverting agent which gradually dissolves in water. The present invention relates to a diverting agent containing a polyvinyl alcohol-based resin and a method of filling a fracture using the diverting agent.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: March 7, 2023
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kazutoshi Tsuji, Norihito Sakai, Tomoya Fujita, Takahiro Saka, Chizuko Furo