Patents Assigned to Mitsui Chemicals
  • Publication number: 20240178437
    Abstract: Provided is a nonaqueous secondary battery including: a nonaqueous electrolyte solution that contains a compound (A) represented by the following Formula (I); a positive electrode that contains a positive electrode active material containing a compound (B) represented by the following Formula (II); and a negative electrode. The content of the compound (A) is more than 0% by mass but less than 1.0% by mass with respect to a total amount of the nonaqueous electrolyte solution. In Formula (I), X+ represents a hydrogen ion, a lithium ion, a sodium ion, or a potassium ion. In Formula (II), 0.1?a<1.3, 0.1<(1-b-c)<1.0, 0<b<0.6, and 0<c<0.6.
    Type: Application
    Filed: March 3, 2022
    Publication date: May 30, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masahiro SUGURO, Yurika OJI, Yusuke SHIMIZU, Teruhiko KUBO, Shigeru MIO, Hidenobu NOGI
  • Publication number: 20240173214
    Abstract: Provided is a composition which contains a urethane (meth)acrylate, and at least one selected from the group consisting of 2-hydroxyethyl acrylate and hydroxypropyl acrylate, in which at least one of the following (1) or (2) is satisfied: (1) a content of 2-hydroxyethyl acrylate is 10,000 ppm by mass or less with respect to a total mass of the composition; (2) a content of hydroxypropyl acrylate is 25,000 ppm by mass or less with respect to the total mass of the composition.
    Type: Application
    Filed: March 9, 2022
    Publication date: May 30, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hiroki MURAI, Toshikazu SAKAMAKI, Mai KIMURA, Suguru ENDO
  • Publication number: 20240176164
    Abstract: An optical element, in which Stim (ipRGC) represented by Formula 1 is from 10.0 to 68.0. In Formula 1, RID65 (?) is a spectral irradiance of illuminant D65, ? (?) is a spectral transmittance of the optical element, and Smel (?) is a sensitivity function of ipRGCs obtained by converting a sensitivity function of ipRGCs described in CIE S/026E: 2018 such that a maximum sensitivity thereof is identical to a maximum sensitivity of a z bar (?) in CIE 1931 color-matching functions.
    Type: Application
    Filed: March 16, 2022
    Publication date: May 30, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Manami TAKENAKA, Nobuo KAWATO
  • Publication number: 20240173895
    Abstract: A device for manufacturing a fiber-reinforced resin having an array of reinforcing fibers oriented in one direction, the device making it possible, with a comparatively simple configuration, to connect earlier and later reinforcing fibers to each other when switching the reinforcing fibers, is provided. The device having an array of reinforcing fibers oriented in one direction according to the present invention comprises: an impregnation unit that impregnates reinforcing fibers with a resin; and a switching device that, when the reinforcing fibers to be impregnated are changed to new fibers, connects the newly fed reinforcing fibers to the previously fed reinforcing fibers. When switching the reinforcing fibers, the device connects the new reinforcing fiber to the preceding reinforcing fiber by forming a bonded body in which the preceding reinforcing fibers and the new reinforcing fibers are bonded by fusing a melted second resin in a form of a thin film.
    Type: Application
    Filed: March 14, 2022
    Publication date: May 30, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masahiro YANO, Atsushi MIYATA
  • Publication number: 20240166854
    Abstract: A thermoplastic elastomer composition including 100 parts by mass of a block copolymer containing a polymer block (X) having an aromatic vinyl compound as a main component and a polymer block (Y) having a conjugated diene compound as a main component, or a hydrogenated product thereof (A); 1 to 400 parts by mass of an ethylene/?-olefin copolymer (B) satisfying the following requirements (b-1) to (b-3); and 0 to 200 parts by mass of a polyolefin-based resin (C) satisfying the following requirement (c-1), (b-1) a kinematic viscosity at 100° C. is 5 to 5,000 mm2/s and a kinematic viscosity at 40° C. is 50 to 100,000 mm2/s, (b-2) a weight-average molecular weight (Mw) determined by gel permeation chromatography (GPC) is 1,000 to 30,000, (b-3) a content ratio of ethylene structural units is 15 to 85 mol %, and (c-1) MFR (230° C. and 2.16 kg) is 0.1 to 500 g/10 min.
    Type: Application
    Filed: February 24, 2022
    Publication date: May 23, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yuto YOSHIDA, Terufumi SUZUKI, Shota ABE
  • Publication number: 20240172562
    Abstract: A piezoelectric base material includes an elongated inner conductor, and a piezoelectric layer covering a periphery of the inner conductor. The piezoelectric layer includes a piezoelectric yarn wound around the inner conductor, and an adhering section that maintains a state in which the piezoelectric yarn is wound around the periphery of the inner conductor. The piezoelectric yarn includes an optically active polypeptide fiber that is a fiber including an optically active polypeptide. The piezoelectric layer has an elastic modulus Y of from 1.0 GPa to 8.0 GPa as measured by a microhardness measurement in accordance with JIS Z 2255.
    Type: Application
    Filed: March 30, 2022
    Publication date: May 23, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Nobuhiro MARUKO, Shigetaka HORI, Katsutoshi OZAKI, Shunya MIZUNO
  • Publication number: 20240166856
    Abstract: A resin composition, wherein the content of a propylene-based polymer (A) satisfying a predetermined requirement is 10 to 99.9 parts by mass, the content of a propylene-based polymer (B) satisfying a predetermined requirement is 0 to 40 parts by mass, the content of a polyolefin (C) containing structural units derived from an unsaturated carboxylic acid and/or a derivative thereof is 0.1 to 20 parts by mass, and the content of an ethylene-based polymer (D) satisfying a predetermined requirement is 0 to 40 parts by mass, provided that the total content of components (A), (B), (C) and (D) is 100 parts by mass.
    Type: Application
    Filed: February 15, 2022
    Publication date: May 23, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koya YOSHIMOTO, Yuhei IZAIKE
  • Patent number: 11988807
    Abstract: The present invention provides an optical member including an organic polymer. This optical member includes a surface A which has an area of 1 mm2 or more, and in which the flatness of a region having an area of 1 mm2, as measured by a non-contact type optical flatness meter, is 80 ?m or less.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: May 21, 2024
    Assignees: MITSUI CHEMICALS, INC., AHIKO FINETEC, LTD.
    Inventors: Soichiro Ahiko, Daisuke Tanaka, Shinichi Umeda
  • Patent number: 11987538
    Abstract: Provided is a method for producing a cyclic olefin compound, including a step of producing a cyclic olefin compound by acting a divalent nickel complex represented by General Formula (1) to decarbonylate and decarboxylate an alicyclic dicarboxylic acid anhydride, in which the divalent nickel complex includes at least one specific anionic ligand Y: Ni(Y)m(L)n??(1) wherein Ni is divalent nickel, Y is an anionic monodentate or polydentate ligand and has at least one Ni-E covalent bond, E is a heteroatom or a n-bonding group, m is 1 or 2, L is a neutral ligand, and n is a real number of 0 to 6.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: May 21, 2024
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Haruyuki Makio, Takaaki Yano, Akira Matsuura
  • Publication number: 20240158966
    Abstract: Provided is a spun-bonded nonwoven fabric including fibers formed of a resin composition that contains: a propylene polymer (A); and a polymer (B) which is at least one selected from the group consisting of polyolefins, other than the propylene polymer (A), and polyesters. The fibers have a sea-island structure. The fibers include fibers in which a ratio of island phases having a diameter of less than 0.32 ?m among those island phases at a cross-section perpendicular to the axial direction of the fibers is 60% or higher on a number basis. In the spun-bonded nonwoven fabric, a ratio (SMB/SCB) of the tensile strength (SMD) in a machine flow direction (MD) with respect to the tensile strength (SCD)) in a direction (CD) perpendicular to the machine flow direction (MD) is from 2.0 to 5.1.
    Type: Application
    Filed: March 18, 2022
    Publication date: May 16, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shohei SAITA, Taiichirou ICHIKAWA, Hirotaka KANAYA
  • Publication number: 20240158626
    Abstract: A thermoplastic elastomer composition contains (A) to (D): (A) 100 parts by mass of a propylene polymer; (B) 50 to 300 parts by mass of an ethylene/?-olefin copolymer including units of ethylene and ?-olefin having 3 to 20 carbon atoms; (C) 50 to 280 parts by mass of a softener; and (D) 90 to 400 parts by mass of a hydrogenated product of a block copolymer including at least one block mainly including a conjugated diene monomer unit and at least one block mainly including a vinyl aromatic monomer unit.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 16, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Ryo NAKATSUJI, Masakazu JITSUKATA, Kanji YAMAMOTO, Taisei SASAKI
  • Publication number: 20240158622
    Abstract: An object of the present invention is to obtain a recycled carbon fiber-reinforced polyolefin composition containing recycled carbon fibers having a mechanical strength that is superior to that of a composition containing unused carbon fibers, and a molded product thereof, and the present invention relates to a recycled carbon fiber-reinforced polyolefin composition, containing 0.01 to 50 parts by mass of a modified polyolefin (A), 50 to 99 parts by mass of a polyolefin (B), and 1 to 80 parts by mass of a recycled carbon fiber (C), wherein a total of (A), (B) and (C) is 100 parts by mass, wherein the modified polyolefin (A) is a modified polyolefin obtained by reacting a modified polyolefin (D) having a group that reacts with a carbodiimide group and a carbodiimide group-containing compound (E).
    Type: Application
    Filed: February 22, 2022
    Publication date: May 16, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hironori MATSUMOTO, Yoshiyuki OGAWA
  • Publication number: 20240158549
    Abstract: A 1-butene/ethylene copolymer (A) satisfying the following requirements (A1) to (A5). (A1) a content of constituent units (i) derived from 1-butene is in a range of 70 to 99.9 mol %, and a content of constituent units (ii) derived from ethylene is in a range of 0.1 to 30 mol % [provided that a total of constituent units (i) and constituent units (ii) is 100 mol %]; (A2) an isotactic pentad fraction (mmmm) calculated by 13C-NMR is in a range of 80 to 99.9%; (A3) an intrinsic viscosity [?] measured in decalin at 135° C. is in a range of 0.7 to 2.0 dl/g; (A4) a melt flow rate (MFR) measured at 190° C. and a load of 2.16 kg in accordance with ASTM D1238 is 1 to 100 g/10 min; and (A5) a melting peak is not observed during second temperature raising in calorimetry with a differential scanning calorimeter (DSC).
    Type: Application
    Filed: March 3, 2022
    Publication date: May 16, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Manabu ITAKURA, Kiminori NODA, Makoto EGAWA, Yuki KAI, Nozomi KAMIYA, Hiroshi HOYA, Takahiro MIZUMA
  • Publication number: 20240157661
    Abstract: The present application provides an apparatus that is for producing a fiber-reinforced resin having reinforcement fibers aligned in one direction and that is capable of, with a relatively simple configuration, connecting a preceding reinforcement fiber and a subsequent reinforcement fiber when switching between the reinforcement fibers. An apparatus according to the present invention is for producing a fiber-reinforced resin having reinforcement fibers aligned in one direction, and comprises: an impregnation part which impregnates a reinforcement fiber with a resin; and a switching device which performs switching of reinforcement fibers on the upstream side of the impregnation part, from a preceding reinforcement fiber to a new reinforcement fiber. During the switching operation, the switching device forms a fabric using the preceding reinforcement fiber and the new reinforcement fiber as warp and other fibers as weft so as to connect the new reinforcement fiber with the preceding reinforcement fiber.
    Type: Application
    Filed: March 17, 2022
    Publication date: May 16, 2024
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Masahiro YANO, Atsushi MIYATA
  • Publication number: 20240158633
    Abstract: Provided is a polyamide resin composition that has high electrical resistance in a high temperature range (around 130° C.) and high heat resistance. The polyamide resin composition includes: a polyamide resin that includes a component unit (a) derived from an aromatic dicarboxylic acid or an alicyclic dicarboxylic acid and a component unit (b2) derived from a diamine represented by formula (1); and at least one flame retardant (X) selected from the group consisting of polybrominated styrenes, brominated polystyrenes, and brominated polyphenylenes, or a flame retardant (Y) containing a specific phosphinate compound, a specific bisphosphinate compound, or a polymer of these compounds. In formula (1), n and the two instances of m are each independently 0 or 1, and —X— is a single bond or a divalent group selected from the group consisting of —O—, —S—, —SO2—, —CO—, and —CH2—.
    Type: Application
    Filed: March 18, 2022
    Publication date: May 16, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Wataru MAKIGUCHI, Haruka DOI, Kohei NISHINO, Isao WASHIO
  • Patent number: 11984341
    Abstract: A component-manufacturing tool includes a frame body and a holding film covering an opening, wherein the frame body includes a first frame and a second frame; the holding film includes a base layer and a holding layer provided on one surface of the base layer, and the holding film is sandwiched and held between the first frame and the second frame in a stretched state; and a ratio RE1 (=E?(100)/E?(25)) of an elastic modulus E?(100° C.) of the base layer to an elastic modulus E?(25° C.) of the base layer is 0.2?RE1?1, and E?(25) is 35 MPa or more and 3500 MPa or less. A component-manufacturing method includes a component holding step of holding components to the holding layer of the component-manufacturing tool; and a chucking step of chucking and fixing the holding film, to which holds the components, to a surface of a heated chuck table.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: May 14, 2024
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventor: Eiji Hayashishita
  • Publication number: 20240154164
    Abstract: Provided is a nonaqueous electrolyte solution for a lithium secondary battery, the nonaqueous electrolyte solution containing a compound (I) represented by Formula (I) and a compound (II) represented by Formula (II). In Formula (I), each of R1 and R2 independently represents a substituent such as an alkyl group having from 1 to 7 carbon atoms. In Formula (II), R3 represents an oxygen atom or the like; R4 represents a group represented by Formula (ii-1), a group represented by Formula (ii-2), or the like; and * represents a binding position. In Formula (ii-1), R41 represents an oxymethylene group or the like and, in Formula (ii-2), R42 represents an alkyl group having from 1 to 6 carbon atoms, or the like.
    Type: Application
    Filed: January 17, 2022
    Publication date: May 9, 2024
    Applicants: MITSUI CHEMICALS, INC., DAIKIN INDUSTRIES, LTD.
    Inventors: Yusuke SHIMIZU, Hidenobu NOGI, Masahiro SUGURO, Yoshiko KUWAJIMA, Tomoya HIDAKA, Kae FUJIWARA, Shigeaki YAMAZAKI
  • Publication number: 20240150552
    Abstract: A resin composition including: 100 parts by mass of a thermoplastic resin (A) having a density, a MFR, and durometer A hardness falling within certain ranges; 10 to 100 parts by mass of a heat storage compound (B) having a flash point of 200° C. or higher; and 1.5 to 20 parts by mass of a porous inorganic compound (C) having an oil absorption of 4.0 g/g or more, in which the content of the heat storage compound (B) is less than 700 parts by mass based on the content of the porous inorganic compound (C) of 100 parts by mass.
    Type: Application
    Filed: January 17, 2022
    Publication date: May 9, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Hiroaki YOSHII
  • Patent number: 11976394
    Abstract: Provided is a non-woven fabric which is suitable for cleaning wipers, diapers, food packaging materials, etc., and has excellent water absorption and handling performance. The non-woven fabric according to the present invention contains a thermoplastic biodegradable resin, and is characterized in that fibers constituting the non-woven fabric have crimps, the flexural rigidity index in the mechanical direction (MD) of the non-woven fabric is 7.77-37.4 as defined by the following equation: flexural rigidity index in the mechanical direction (MD)=flexural rigidity (gf·cm) in the mechanical direction (MD)/{basis weight(g/m2)}2.5×106, and the bulk density of the non-woven fabric is 0.098 g/cm3 to 0.251 g/cm3.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: May 7, 2024
    Assignee: Mitsui Chemicals Asahi Life Materials Co., Ltd.
    Inventors: Yuya Fujimoto, Rumina Obi, Takashi Komatsu, Eiji Shiota
  • Publication number: 20240141165
    Abstract: Provided is a polyamide resin composition that has a high electrical resistance in a high temperature region (around 130° C.) while having a high heat resistance. This polyamide resin composition comprises polyamide resin that contains a component unit (a) deriving from an aromatic dicarboxylic acid or alicyclic dicarboxylic acid and a component unit (b2) deriving from 1,3-bis(aminomethyl)cyclohexane. The polyamide resin composition further comprises at least one flame retardant (X) selected from the group consisting of polybrominated styrenes, brominated polystyrenes, and brominated polyphenylenes, or a flame retardant (Y) comprising a prescribed phosphinate salt compound or bisphosphinate salt compound or a polymer thereof.
    Type: Application
    Filed: March 16, 2022
    Publication date: May 2, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Haruka DOI, Wataru MAKIGUCHI, Kohei NISHINO, Isao WASHIO