Patents Assigned to Mitsubishi Chemical Corporation
  • Patent number: 11597165
    Abstract: The purpose of the present invention is to provide a fiber-reinforced resin material having minimal directionality of strength as well as excellent productivity, a method and device for manufacturing a fiber-reinforced resin material whereby a molded article is obtained, and a device for inspecting a fiber bundle group. A method for manufacturing a sheet-shaped fiber-reinforced resin material in which a paste (P1) is impregnated between cut fiber bundles (CF), the method for manufacturing a fiber-reinforced resin material including a coating step applying a coating of a paste (P1) on a first sheet (S11) conveyed in a predetermined direction, a cutting step for cutting a long fiber bundle (CF) using a cutter (113A), a scattering step for dispersing the cut fiber bundles (CF) and scattering the cut fiber bundles (CF) on the paste (P1), and an impregnation step for pressing a fiber bundle group (F1) and the paste (P1) on the first sheet (S11) and impregnating the paste (P1) between the fiber bundles (CF).
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: March 7, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroshi Iwata, Nobuyuki Yamamoto, Hajime Okutsu, Ryuichi Ishikawa, Koichi Akiyama, Takayuki Kobayashi
  • Patent number: 11597896
    Abstract: The present invention relates to a cleaning liquid containing a component (A): a compound represented by the following formula (1), component (B): alkylamine, component (C): polycarboxylic acid, and component (D): ascorbic acid, in which a mass ratio of the component (A) to a total mass of the component (B) and the component (C) is 1 to 15, and in the formula (1), R1, R2, and R3 each have a definition same as the definition described in the description,
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: March 7, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Toshiaki Shibata, Yasuhiro Kawase, Ken Harada, Atsushi Ito, Tomohiro Kusano, Yutaro Takeshita
  • Publication number: 20230063756
    Abstract: A polymer composition, in which a differential distribution value in a differential molecular weight distribution curve of the polymer composition, as measured by gel permeation chromatography, satisfies Equation 1 and a maximum value of a normalized back-scattering intensity of a 35 wt % base oil solution of the polymer composition, where a size q of a scattering vector of small-angle X-ray scattering at 25° C. is in a range of 0.07 nm?1 or more and 2 nm?1 or less, is 40 cm?1 or more.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 2, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroki Fukuta, Katsufumi Mochizuki, Fumiko Fujie, Takahiro Mukuda, Hiroshi Niino, Eiko Okamoto, Kazunari Matsumura, Hiroko Shinada, Hiroki Hamamoto
  • Publication number: 20230068130
    Abstract: In a positively charging single layer type electrophotographic photoreceptor having an over coat layer, an electrophotographic photoreceptor that is excellent in mechanical strength, electric characteristics, and adhesiveness, an electrophotographic photoreceptor cartridge, and an image formation device are provided. In a positively charging electrophotographic photoreceptor having a single layer type photosensitive layer and an over coat layer, the Martens hardness on the photoreceptor surface satisfies the prescribed condition, and preferably the photosensitive layer satisfies the particular relational expression of the contents and the molecular weights of the hole transporting substance and the electron transporting substance contained therein, thereby solving the problem.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 2, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Akira Ando, Takahiro Choda
  • Patent number: 11591437
    Abstract: Provided is a polycarbonate polyol used as a raw material of a polyurethane that yields a polyurethane solution having good storage stability and exhibits excellent flexibility and solvent resistance. This polycarbonate polyol is a polycarbonate diol that includes structural units represented by the following Formulae (A) and (B), wherein, R1 and R2 each independently represent an alkyl group having 1 to 4 carbon atoms and, in this range of the number of carbon atoms, optionally have an oxygen atom, a sulfur atom, a nitrogen atom, a halogen atom, or a substituent containing these atoms; and R3 represents a linear aliphatic hydrocarbon having 3 or 4 carbon atoms. This polycarbonate diol has a molecular weight of 500 to 5,000, and the value of the following Formula (I) is 0.3 to 20.0: (Content ratio of branched-chain moiety in polymer)/(Content ratio of carbonate group in polymer)×100(%) (I).
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: February 28, 2023
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshikazu Kanamori, Yuta Hioki
  • Patent number: 11591715
    Abstract: A GaN single crystal having a gallium polar surface which is a main surface on one side and a nitrogen polar surface which is a main surface on the opposite side, wherein on the gallium polar surface is found at least one square area, an outer periphery of which is constituted by four sides of 2 mm or more in length, and, when the at least one square area is divided into a plurality of sub-areas each of which is a 100 ?m×100 ?m square, pit-free areas account for 80% or more of the plurality of sub-areas.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: February 28, 2023
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hideo Fujisawa, Yutaka Mikawa, Shinichiro Kawabata, Hideo Namita, Tae Mochizuki
  • Patent number: 11591244
    Abstract: Header-equipped air diffusion devices includes, in the header, an air storage unit, on its lower end including inlet(s) for water to be treated, and air supply part(s) and air sending part(s) on the air storage unit upper section. The air diffusion device's air sending part and horizontal tube are connected, air sent from the header being diffused by the air diffusion device, and air sending in the air storage unit is above the air supply part's air supply port. The air storage portion's partition portion, with a 50+mm height, partitions the upper portion into an air supply and an air feeding portion side. The partition portion forms a cylindrical portion and an upper plate portion and the air storage portion's trunk portion serves as part of the air supply portion, and an opening end on a lower end side of the partition portion serves as the air supply port.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: February 28, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yunje Lee, Makoto Ideguchi, Shinsuke Furuno
  • Publication number: 20230057670
    Abstract: The present invention provides a non-aqueous electrolytic solution which can be handled industrially stably, and which allows for achieving a good durability performance, particularly, a good capacity retention rate during repeated charging and discharging, of an energy device typified by a non-aqueous electrolytic solution secondary battery. The non-aqueous electrolytic solution contains a compound(s) represented by the following general formula(e) (A1) and/or (A2). In formula (A1), X1 represents a halogen atom; each of R1, R2, R5 and R6 independently represents a hydrogen atom, a halogen atom, or a hydrocarbon group having 10 or less carbon atoms optionally substituted with a halogen atom; and each of R3 and R4 independently represents a halogen atom, or a hydrocarbon group having 10 or less carbon atoms optionally substituted with a halogen atom; wherein at least two of R1 to R6 may be bonded to each other to form a ring.
    Type: Application
    Filed: September 16, 2022
    Publication date: February 23, 2023
    Applicants: MITSUBISHI CHEMICAL CORPORATION, MU IONIC SOLUTIONS CORPORATION
    Inventors: Kaho TAMAI, Taiki ABE, Aiko WATANABE, Kanako ITO, Takeshi NAKAMURA, Hiroyuki TOKUDA, Keiji SHITO, Ryo NOZAWA
  • Publication number: 20230056801
    Abstract: As a new negatively charging electrophotographic photoconductor having a cured resin based protective layer that does not necessitate a heat treatment for enhancing the electric characteristics, a negatively charging electrophotographic photoconductor having a structure including a photosensitive layer and a protective layer containing a cured product formed by curing a curable compound on a conductive support in this order, the photosensitive layer containing at least a hole transporting material (HTM) and a radical acceptor compound or an electron transporting material (ETM), the hole transporting material (HTM) being a compound having an energy difference between a HOMO level and a LUMO level of 3.60 eV or less, and having a HOMO level of ?4.50 eV or less based on the vacuum level is proposed.
    Type: Application
    Filed: September 28, 2022
    Publication date: February 23, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Takahiro Choda, Akira Ando
  • Publication number: 20230053367
    Abstract: Provided is a three-dimensional modeling material used for a fused deposition modeling three-dimensional printer. The three-dimensional modeling material has a multilayer structure and contains, in respective different layers, a thermoplastic resin (A) having a shear storage elastic modulus (G?) of 1.00×107 Pa or less as measured at 100° C. and 1 Hz and a thermoplastic resin (B) having a shear storage elastic modulus (G?) of more than 1.00×107 Pa as measured at 100° C. and 1 Hz.
    Type: Application
    Filed: October 6, 2022
    Publication date: February 23, 2023
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Akiko HIRANO, Shigeyuki FUROMOTO
  • Patent number: 11584835
    Abstract: A laminated substrate obtained by laminating a carbon fiber reinforced resin substrate (a) containing a carbon fiber and a thermoplastic resin fiber and a glass fiber reinforced resin substrate (B) containing a glass fiber and a thermoplastic resin, wherein a content of the carbon fiber in the carbon fiber reinforced resin substrate (a) is 20% by mass or more and less than 100% by mass with respect to a total mass of the carbon fiber reinforced resin substrate (a), and the carbon fiber reinforced resin substrate (a) has an elongation percentage of from 20% to 150% at a maximum load point in a MD direction at a temperature of a melting point of a resin constituting the thermoplastic resin fiber+20° C., an elongation percentage of from 20% to 150% at a maximum load point in a TD direction, and a tensile stress of 1.0×10?3 to 1.0×10?1 MPa.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: February 21, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Mitsutoshi Sano, Yoshimi Koyama, Yusuke Ishie
  • Patent number: 11582981
    Abstract: The object of the present invention is to provide an emulsion composition that maintains emulsion stability even after high temperature process such as sterilization (heat resistance), shows a small change in particle size distribution between before and after heating, and maintains emulsion stability even under conditions where transformation of an oil phase component (for example, solidification or crystallization of the oil phase component due to temperature drop, or melting of the oil phase component due to temperature rise) occurs (temperature drop resistance), wherein the composition is easily handled during the production process. The object is solved by an oil-in-water emulsion composition containing solid particles, a predefined surfactant, an oil phase component, and an aqueous phase component, wherein the oil phase component includes a predefined oil component and the solid particles are distributed along the interface between the oil phase component and the aqueous phase component.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: February 21, 2023
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Minako Hanasaki, Tsutashi Matsuura, Tetsuo Kasai, Tatsushi Isojima
  • Patent number: 11583807
    Abstract: A separation membrane module may decrease a bending load applied to a support member supporting ends of tubular separation membranes and omission of a seal member between the outer circumferential surface of the support member and the inner circumferential surface of a housing. The separation membrane module may include a tubular housing, tubular separation membranes arranged in a longitudinal direction of the housing, end tubes connected to lower ends of the tubular separation membranes, a support box supporting the end tubes, and a backpressure chamber below the support box. The tubular separation membranes may be in communication with a support box collection chamber. A nozzle disposed on the support box may extract permeated fluid. A chamber and the backpressure chamber are in communication via a gap between the support box outer circumferential surface and the inner circumferential surface. The chamber and backpressure chamber have substantially the same pressure.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: February 21, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Naoki Noguchi
  • Publication number: 20230046977
    Abstract: A sheet molding compound which is a thickened material of an epoxy resin composition, including a component (A), a component (B), and a component (C), in which the component (A) is an epoxy resin staying at a liquid state at 25° C., the component (B) is an acid anhydride, the component (C) is an epoxy resin curing agent, and in the thickened material, at least some of epoxy groups of the component (A) and at least some of carboxy groups derived from the component (B) form ester.
    Type: Application
    Filed: October 7, 2022
    Publication date: February 16, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Akira OTA, Masahiro ICHINO, Takuya TERANISHI
  • Publication number: 20230050464
    Abstract: Provided are a method and an apparatus for manufacturing a fiber-reinforced resin molding material by which, when the fiber-reinforced resin molding material is manufactured, separated fiber bundles can be supplied to a cutting machine in stable condition while avoiding the influence of meandering of the fiber bundles or slanting or meandering of filaments occurring in the fiber bundles. A method for manufacturing a sheet-shaped fiber-reinforced resin molding material in which spaces between filaments of cut-out fiber bundles (CF) are impregnated with resin includes, so that a condition of the following expression (1) is satisfied, intermittently separating fibers of the continuous fiber bundles (CF) in a longitudinal direction by a rotational blade (18) serving as a fiber separating part and cutting out the fiber bundles with an interval therebetween in a longitudinal direction of a cutting machine (13A) to obtain the cut-out fiber bundles (CF).
    Type: Application
    Filed: October 31, 2022
    Publication date: February 16, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Tadao SAMEJIMA, Yukihiro MIZUTORI, Yasushi WATANABE, Junji KANEHAGI
  • Publication number: 20230045736
    Abstract: A polyester film recovery method includes: a functional layer removing step (A) of cleaning a laminated polyester film including a polyester film having on a surface thereof a functional layer, with a cleaning agent, so as to remove the functional layer; and a recovering step (B) of recovering the polyester film, from which the functional layer has been removed, and the cleaning agent is selected from the following (1) to (3): (1) a cleaning agent containing an alkalinizing agent (a) and a compound (b) having at least one hydroxy group, (2) a cleaning agent containing an alkalinizing agent (a) and a compatibilizing agent (c), and (3) a cleaning agent containing an alcohol compound having an acidity constant (pKa) of 8.0 or more and 20.0 or less. A polyester film recovery method that can peel a functional layer and can recover the base material film, a recovery apparatus, and a functional layer removal agent can be provided.
    Type: Application
    Filed: September 27, 2022
    Publication date: February 9, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kazunobu Tada, Toshihiro Hiraki, Tomohiro Suzuki, Kiyonori Kuroda
  • Publication number: 20230043006
    Abstract: The present disclosure provides a resin composition containing a bio-polyethylene resin (A), an ethylene-vinyl alcohol copolymer (B), and an alkali metal salt (C), wherein the content of the alkali metal salt (C) is 10 ppm to 1500 ppm, in terms of metal, with respect to the weight of the ethylene-vinyl alcohol copolymer (B). With this resin composition, gel formation and a reduction in transparency during molding are suppressed, and a molded product having an excellent appearance can thus be obtained.
    Type: Application
    Filed: October 4, 2022
    Publication date: February 9, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Eri Sawano, Shinji Nakanishi
  • Publication number: 20230040679
    Abstract: A fiber-reinforced composite material includes a matrix resin, and reinforcing fibers, in which the matrix resin includes a polyaryl ketone resin and a resin having a nitrogen atom in a repeating structural unit. A surface of the fiber-reinforced composite material includes a portion in which a contact angle with water is 60° or less.
    Type: Application
    Filed: September 20, 2022
    Publication date: February 9, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuma FURUHASHI, Takahiro Hayashi
  • Patent number: 11573488
    Abstract: A holographic recording medium composition comprising component (e): a compound having an isocyanate group or an isocyanate-reactive functional group and further having a nitroxyl radical group, wherein component (e) contains component (e-1) below: component (e-1): a compound having a heterobicyclic ring structure or a heterotricyclic ring structure, the heterobicyclic ring structure or the heterotricyclic ring structure being obtained by replacing a carbon atom in a bicyclic ring structure or a tricyclic ring structure by the nitroxyl radical group.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: February 7, 2023
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Takanori Shimizu
  • Patent number: 11572479
    Abstract: A conductive composition comprising a conductive polymer (A), a water-soluble polymer (B), and a solvent (C1), wherein: the water-soluble polymer (B) comprises a water-soluble polymer (B11) represented by formula (11), and an amount of a water-soluble polymer (B2) represented by formula (2) as the water-soluble polymer (B) is 0.15% by mass or less, based on a total mass of the conductive composition: wherein R1 denotes a linear or branched alkyl group with 6 to 20 carbon atoms, each of R4 and R5 independently denotes a methyl or ethyl group, R6 denotes a hydrophilic group, R7 denotes a hydrogen atom or a methyl group, Y1 denotes a single bond, —S—, —S(?O)—, —C(?O)—O— or —O—, Z denotes a cyano group or a hydroxy group, each of p1 and q denotes an average number of repetitions, and is a number of from 1 to 50, and m denotes a number of from 1 to 5.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: February 7, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Saki Makigawa, Shinji Saiki, Yoshiko Irie, Masashi Uzawa, Akira Yamazaki