Patents Assigned to Mitsui
  • Publication number: 20250115030
    Abstract: A laminated film includes a first polyolefin-based resin layer including a first polyolefin-based resin having a melting point of from 95° C. to 200° C., a second polyolefin-based resin layer including a second polyolefin-based resin having a melting point of less than 95° C., and a third polyolefin-based resin layer including a third polyolefin-based resin having a melting point of from 95° C. to 200° C., which are disposed in this order. The laminated film has an oxygen permeability of from 7,500 mL/m2·day·atm to 85,000 mL/m2·day·atm.
    Type: Application
    Filed: November 9, 2022
    Publication date: April 10, 2025
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Yoshiyuki KATAYAMA
  • Patent number: 12269914
    Abstract: A polymerizable composition for optical materials of the present invention contains (A) a polyisocyanate compound, (B) a polythiol compound, (C) a photochromic compound, (D) a polyether compound having a number-average molecular weight of 50 to 10,000, and (E) a polyether-modified siloxane compound having a viscosity of 1 mPa·s or more and less than 1,600 mPa·s.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: April 8, 2025
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yuuki Kasori, Shinsuke Ito
  • Patent number: 12269913
    Abstract: A polythiol composition includes a polythiol compound (A) including at least one of 4,8-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 4,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, and a polythiol compound (B) that is 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: April 8, 2025
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takeshi Nishimura, Masayuki Furuya, Kouji Suesugi
  • Patent number: 12268209
    Abstract: This invention relates to a liquid herbicidal composition comprising a non-aqueous solvent system, at least one sulfonylurea herbicide and at least one inorganic salt selected from the metal carbonates and metal phosphates. The invention also relates to the use of an inorganic salt selected from the metal carbonates and metal phosphates to improve chemical stabilisation of a sulfonylurea herbicide in a liquid composition comprising a non-aqueous solvent system.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: April 8, 2025
    Assignees: Mitsui AgriScience International S.A./N.V., Battelle UK Limited
    Inventors: Oliver Egan, Andrew Goldsmith
  • Patent number: 12269832
    Abstract: The present disclosure provides a lithium borate compound represented by the following Formula (I), an additive for a lithium secondary battery, which contains the lithium borate compound, a non-aqueous electrolyte solution for a lithium secondary battery, a lithium secondary battery precursor, and a lithium secondary battery and method of producing the same. In Formula (I), R represents a single bond or an alkylene group having from 1 to 4 carbon atoms.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 8, 2025
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Han Zhang, Yusuke Shimizu, Satoko Fujiyama, Kenichi Goto, Shigeru Mio
  • Patent number: 12271109
    Abstract: The disclosure addresses provision of a pellicle demounting method having excellent property with respect to reduction of contamination of a photomask. A method of demounting a pellicle, the method is provided which includes: providing a stack including a photomask, a pellicle frame, and a pellicle film that are arranged in this order; providing an electrode; and a demounting step including disposing the stack and the electrode such that the pellicle film in the stack and the electrode face each other, and applying a voltage to the electrode to generate an electrostatic attractive force, which attracts the pellicle film in a direction toward the electrode, thereby demounting the pellicle film from the photomask in the stack.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: April 8, 2025
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Akira Ishikawa, Kazuo Kohmura
  • Patent number: 12272828
    Abstract: An electrode catalyst layer for a fuel cell includes a catalyst/support composite including a support and a catalyst supported thereon. The support contains a titanium oxide. The surface of the catalyst/support composite has an oxide of at least one element selected from the group consisting of niobium, tantalum, zirconium, and silicon. The ratio A2/A1 is from 0.35 to 1.70, wherein A1 is the atomic ratio of titanium on a surface of the catalyst layer and A2 is the atomic ratio of a total of niobium, tantalum, zirconium, and silicon on the surface of the catalyst layer, A1 and A2 being measured by X-ray photoelectron spectroscopy. The titanium oxide preferably has a composition TiOX (0.5?x<2).
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: April 8, 2025
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Takuya Kitabatake, Joji Miki, Haruka Watanabe
  • Patent number: 12269930
    Abstract: In a polyurethane dispersion obtained by water-dispersing a polyurethane resin, the polyurethane resin is a reaction product obtained by reacting at least a polyisocyanate component with an active hydrogen group-containing component containing an active hydrogen compound having an anionic group, a ratio of the total moles of a urethane group and a urea group is 1.5 mol or more with respect to 1 kg of the polyurethane dispersion, and the carbonate ion concentration is 700 ppm or less with respect to the polyurethane dispersion.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 8, 2025
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Chikako Kouda, Kazuyuki Fukuda, Takashi Uchida
  • Publication number: 20250110259
    Abstract: A polythiol composition, comprising a polythiol compound, wherein: the polythiol composition comprises a compound C2 that has a retention time of from 16.0 minutes to 19.0 minutes in a high-performance liquid chromatography measurement performed under a specific measurement conditions A, and in the high-performance liquid chromatography measurement, the compound C2 has a peak area of 1.000 or more with respect to a total of 100 of a peak area of the compound C2 and a peak area of a main component of the polythiol composition.
    Type: Application
    Filed: January 26, 2023
    Publication date: April 3, 2025
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shinnosuke NAKAI
  • Publication number: 20250109277
    Abstract: A cyclic olefin resin composition of the present invention contains a cyclic olefin copolymer (A) and a boric acid ester compound (B).
    Type: Application
    Filed: February 2, 2023
    Publication date: April 3, 2025
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yuya HAMADA, Yasuyuki SOEDA, Futoshi FUJIMURA, Masakatsu KASUYA, Takayuki OKUNO
  • Patent number: 12263523
    Abstract: A method is provided for producing a bonding composition containing copper particles and a second liquid medium. In this production method, the copper particles are produced in a first liquid medium using a wet reduction method, and thus a dispersion of the copper particles is prepared. Subsequently, the first liquid medium in the dispersion is ultimately, finally or eventually replaced with the second liquid medium while the dispersion is kept wet. It is also preferable that the first liquid medium is replaced with another liquid medium one or more times, and the second liquid medium is used in the final replacement. The liquid media are preferably replaced at a temperature of lower than 100° C. The second liquid medium preferably includes one or more of water, alcohol, ketone, ester, ether, and hydrocarbon.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: April 1, 2025
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Kei Anai, Shinichi Yamauchi, Jung-Lae Jo
  • Patent number: 12264512
    Abstract: An actuator device includes: a meshing unit configured to mesh with and release a striker, the meshing unit including a latch; an actuator unit including a motor; an output lever configured to rotate to transmit driving force of the motor in the actuator unit to the meshing unit to drive the meshing unit; and a support member both ends of which are coupled to the meshing unit, the support member being configured to support the actuator unit, wherein the output lever is separated from the support member when viewed from an approaching/separating direction of the striker with respect to the meshing unit.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: April 1, 2025
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Minetaka Katagawa, Yohei Tsuchiya, Chenming Zhang
  • Publication number: 20250101214
    Abstract: A 4-methyl-1-pentene copolymer composition (X), including 50 to 90 parts by mass of a 4-methyl-1-pentene-based polymer (A) having a melting point in a range of 200 to 250° C. as measured by DSC, 5 to 30 parts by mass of a 4-methyl-1-pentene-based polymer (B) having a melting point of lower than 200° C. or having no melting point observed as measured by DSC, and 5 to 30 parts by mass of a thermoplastic elastomer (C) other than the (A) and the (B), and satisfying the following requirements (a) and (b), a molded body composed of the composition (X), and a method for producing a rubber hose. Requirement (a): the tan ? peak temperature determined by dynamic viscoelasticity measurement in a temperature range of 0 to 240° C. at a frequency of 10 rad/s is 0 to 60° C.; and requirement (b): the tan ? peak value determined by dynamic viscoelasticity measurement in a temperature range of 0 to 100° C. at a frequency of 10 rad/s is 0.15 to 0.8.
    Type: Application
    Filed: October 26, 2022
    Publication date: March 27, 2025
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takayuki UEKUSA, Motoyasu YASUI, Yoshisada FUKAGAWA
  • Publication number: 20250100200
    Abstract: The present invention relates to a non-oriented film, a laminated body, and a package; the non-oriented film has a sealant layer composed of a resin composition including 30 to 90 mass % of a propylene-based polymer (A) and 10 to 70 mass % of a 1-butene/?-olefin copolymer (B), and a substrate layer; the propylene-based polymer (A) has a melting point (Tm) measured by differential scanning calorimetry (DSC) of 120° C. or higher and 135° C. or lower, and contains 50 to 90 mol % of a propylene-derived constitutional unit; the copolymer (B) has a melting point measured by DSC of lower than 120° C. or has no melting point observed by DSC, and contains 50 to 99 mol % of a 1-butene-derived constitutional unit and 1 to 50 mol % of an ?-olefin-derived constitutional unit (provided that a total of the 1-butene-derived constitutional unit and the ?-olefin-derived constitutional unit is 100 mol %), the sealant layer has a thickness of 3 to 30 ?m, and the substrate layer has a thickness of 10 to 100 ?m.
    Type: Application
    Filed: January 25, 2023
    Publication date: March 27, 2025
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takahiro MIZUMA, Nao SHIOZAKI, Nozomi KAMIYA, Makoto EGAWA, Yuki KAI, Hiroshi HOYA
  • Publication number: 20250101209
    Abstract: A resin composition containing 40 to 90 mass % of a biomass-derived polyolefin (A) obtained by polymerizing a monomer component mainly containing a biomass-derived ethylene (x), 25 to 50 mass % of a linear low-density polyethylene (B) having a density of 0.90 to 0.93 g/cm3 and 1 to 10 mass % of a modified polyolefin (C) (provided that a sum of the (A), the (B) and the (C) is 100 mass %), in which a biomass content Pbio of the polyolefin (A) is 90% or more, and a biomass content Pbio of the resin composition is 50% or more, a formed body containing the same, a multilayer body, and a multilayer tube including the same. Pbio(%)=pMC/105.5×100 (in the equation, pMC indicates the content of radiocarbon 14C in the polyolefin (A) or the resin composition that is obtained in accordance with ASTM D6866.
    Type: Application
    Filed: March 24, 2023
    Publication date: March 27, 2025
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takashi YAMASAKI, Akane SHIMANUKI, Yuhei IZAIKE, Yoshiyuki OGAWA, Takanori SASAKI
  • Publication number: 20250106953
    Abstract: Provided is a heating element capable of rapidly increasing the temperature even when the supply voltage is low. The heating element includes a resin film and heating wires provided on at least one surface of the resin film and including a copper wire, wherein copper crystal grains forming the copper wire have a cross-sectional crystal size of 1.5 ?m or more.
    Type: Application
    Filed: January 20, 2023
    Publication date: March 27, 2025
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Hiroto IIDA, Makoto HOSOKAWA, Toshiyuki SHIMIZU
  • Publication number: 20250101164
    Abstract: A polythiourethane film comprising polythiourethane, wherein the polythiourethane is a reaction product of a bifunctional thiol compound, a trifunctional or higher thiol compound, and an isocyanate compound.
    Type: Application
    Filed: January 24, 2023
    Publication date: March 27, 2025
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Makoto WATANABE, Motoharu OIKI, Nobuo KAWATO
  • Patent number: 12258808
    Abstract: The size of a driving portion for a sliding door is reduced. Drive mechanism drives sliding door that can move along rail provided in a lower part of a vehicle. Drive mechanism comprises: door opening and closing cables each having first end that is fixed to sliding door; and driving portion to which a second end of door opening cable and a second end of door closing cable are fixed, wherein driving portion drives door opening cable and door closing cable. Driving portion includes: door opening drum to which the second end of door opening cable is fixed and onto which door opening cable is wound; and door closing drum to which the second end of door closing cable is fixed and onto which door closing cable is wound. Door opening drum and door closing drum are arranged along rail between a front end and a rear end of rail.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: March 25, 2025
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Kazuyuki Sasaki, Shinichiro Kita
  • Patent number: 12261143
    Abstract: A method of manufacturing a substrate layered body includes: a step of applying a bonding material to the surface of at least one of a first substrate or a second substrate; a step of curing the bonding material applied on the surface to form a bonding layer having a reduced modulus at 23° C. of 10 GPa or less; and a step of bonding the first substrate and the second substrate via the bonding layer formed.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: March 25, 2025
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yasuhisa Kayaba, Jun Kamada, Yuzo Nakamura
  • Patent number: 12262469
    Abstract: Provided is a copper-clad laminate in which a copper foil and a resin are joined together with high heat-resistant adhesion force though a fluororesin is used. This copper-clad laminate includes a surface-treated copper foil including a copper foil and a zinc-containing layer on at least one surface of the copper foil; and a sheet-shaped fluororesin on the zinc-containing layer side of the surface-treated copper foil. The zinc-containing layer is composed of Zn and a transition element M having a melting point of 1200° C. or more. When the interface between the copper foil and the zinc-containing layer is subjected to elemental analysis by GD-OES, the emission intensity ratio IZn/ICu of the emission intensity of Zn to that of Cu is 3.0×10?3 or less, and the emission intensity ratio IZn/IM of the emission intensity of Zn to that of the transition element M is 0.30 to 0.50.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: March 25, 2025
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Daisuke Nakajima, Shota Kawaguchi