Patents Assigned to Mitsui Chemicals, Inc.
  • Metal/resin composite structure and manufacturing method of metal/resin composite structure
    Patent number: 11701864
    Abstract: A metal/resin composite structure includes: a metal member (M) having a fine uneven surface; and a polyamide-based resin member (A) bonded to the metal member (M), and the polyamide-based resin member (A) satisfies the following condition [A1] and condition [A2]: [A1] a glass transition temperature (Tg) observed by a differential scanning calorimeter (DSC) is equal to or higher than 85° C. and equal to or lower than 140° C.; and [A2] a crystallization temperature (Tc) observed by a differential scanning calorimeter (DSC) is equal to or higher than 250° C. and equal to or lower than 292° C.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: July 18, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masaki Misumi, Kazuki Kimura, Kaoru Minagawa
  • Spunbonded non-woven fabric, sanitary material, and method of manufacturing spunbonded non-woven fabric
    Patent number: 11702779
    Abstract: A spunbonded non-woven fabric includes a fiber including a propylene homopolymer having a melting point of 140° C. or more, a polyethylene having a density of from 0.941 g/cm3 to 0.970 g/cm3, and at least one polymer selected from the group consisting of a polymer represented in (I) and a polymer represented in (II). In the spunbonded non-woven fabric, the fiber includes a sea-island structure, and the percentage of an island phase having a diameter of from 0.12 ?m to less than 0.63 ?m with respect to an island phase in a cross section orthogonal to the axis direction of the fiber on a number basis is 30% or more. (I) represents a random copolymer of propylene and at least one selected from ethylene or an ?-olefin having a carbon number of from 4 to 20. (II) represents a propylene homopolymer with a melting point of less than 120° C.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: July 18, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Taiichiro Ichikawa, Akio Matsubara, Koichi Shimada, Shigeyuki Motomura
  • COMPOSITE NONWOVEN FABRIC AND METHOD OF PRODUCING THE SAME
    Publication number: 20230220593
    Abstract: Provided is a composite nonwoven fabric including: a silk region that contains crimped silk fibers as a main component; and a synthetic fiber nonwoven fabric region that contains polyolefin resin-containing synthetic fibers as a main component.
    Type: Application
    Filed: July 5, 2021
    Publication date: July 13, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Mayu FUSHIMI, Taro ICHIKAWA
  • METHOD FOR PRODUCING CYCLIC OLEFIN COMPOUND
    Publication number: 20230219868
    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.
    Type: Application
    Filed: June 10, 2021
    Publication date: July 13, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Haruyuki MAKIO, Takaaki YANO, Akira MATSUURA
  • Olefin oligomerization catalyst and method for producing olefin oligomer in the presence of the same catalyst
    Patent number: 11691136
    Abstract: A method for producing an olefin oligomer is disclosed, in which an olefin oligomerization reaction is performed in the presence of an olefin oligomerization catalyst comprising (A) a chromium compound, (B) an amine compound of the general formula (1): (R1 to R4 represent a group such as a hydrocarbon group, Y represents a structure represented by —CR5R6—, R5 and R6 represent a group such as a hydrogen atom, and Z represents an integer of 1 to 10), and (C) a compound such as an organometal compound; and the olefin oligomerization catalyst.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: July 4, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Seiichi Ishii, Shinichiro Ichikawa, Terunori Fujita
  • CRYSTALLINE POLYAMIDE RESIN, RESIN COMPOSITION, AND MOLDED ARTICLE
    Publication number: 20230203247
    Abstract: Provided is a crystalline polyamide resin that can exhibit a high mechanical strength and electrical resistance in high temperature regions (in the neighborhood of 150° C.). This polyamide resin has the following: a dicarboxylic acid-derived component unit (a) that includes a component unit (a1) derived from terephthalic acid, naphthalenedicarboxylic acid, or cyclohexanedicarboxylic acid, at more than 20 mol % and up to and including 100 mol % with reference to the total number of moles of the dicarboxylic acid-derived component unit (a); and a diamine-derived component unit (b) that contains a component unit (b1) deriving from alkylenediamine having 4-18 carbon atoms and a component unit (b2) deriving from diamine given by formula (1).
    Type: Application
    Filed: July 5, 2021
    Publication date: June 29, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kohei NISHINO, Toshitaka KOSAKA, Isao WASHIO
  • METAL MEMBER, METAL-RESIN COMPOSITE, AND METHOD FOR MANUFACTURING METAL MEMBER
    Publication number: 20230203670
    Abstract: A metal member has a region in which a dendritic layer is formed on a surface. The region has an arithmetic average roughness Ra of 20.0 ?m or less.
    Type: Application
    Filed: July 21, 2021
    Publication date: June 29, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Junya SHIMAZAKI, Daiki SUMITA
  • XYLYLENE DIISOCYANATE COMPOSITION, POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, RESIN, MOLDED ARTICLE, OPTICAL ELEMENT, AND LENS
    Publication number: 20230202971
    Abstract: A xylylene diisocyanate, a compound represented by the following chemical formula (1), and a compound represented by the following chemical formula (2) are contained in a xylylene diisocyanate composition.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 29, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masayuki TAKAGUCHI, Masaru KAWAGUCHI
  • Laminate for battery
    Patent number: 11685843
    Abstract: A laminate for a battery with a polypropylene adhesive layer and a metal substrate layer: (1) the adhesive includes 40-94 wt % of a propylene copolymer (A), 3-30 wt % of a butene-containing copolymer (B), 3-30 wt % of an ethylene-?-olefin copolymer (C) ((A), (B), and (C) is 100 wt %), (2) the copolymer (A) has a melting point of 130° C. or more measured with a differential scanning calorimeter, and a total proportion of a structural unit derived from ethylene is 4-25 mol % relative to 100 mol % of a total structural units forming all the copolymers (A) contained in the adhesive, (3) the copolymer (B) includes less than 1 mol % of a structural unit derived from ethylene, and has a melting point of 100° C. or less measured with a differential scanning calorimeter, and (4) the copolymer (C) includes 50-99 mol % of a structural unit derived from ethylene.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 27, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takahiro Maeda, Yoshiyuki Ogawa
  • Trihydroxybenzene production method
    Patent number: 11685704
    Abstract: A method of producing THB with improved efficiency is provided. Provided is a method of producing trihydroxybenzene (THB), the method comprising a step of heating a bacterial culture liquid comprising deoxy-scyllo-inosose (DOI) at a high temperature of no lower than 80° C. to obtain a product solution comprising trihydroxybenzene (THB).
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 27, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Osamu Yoshikawa, Masaki Yabe, Mitsufumi Wada, Yusuke Ito, Hideki Ouchi
  • DENTURE BASE AND METHOD OF MANUFACTURING SAME, ARTIFICIAL TOOTH AND METHOD OF MANUFACTURING SAME, AND DENTURE AND METHOD OF MANUFACTURING SAME
    Publication number: 20230190426
    Abstract: Provided is a denture base that includes a base portion; a socket that is demarcated by a step portion from a gingival area of the base portion and to which an artificial tooth is to be attached; and interdental papilla areas of the gingival area, which are positioned at both ends of the socket along a tooth row, wherein, in a state in which the socket is facing upward, a basal surface of the socket has a ridge-shaped socket apex portion configured by a surface that is convex overall, a peripheral area of the basal surface is in mutually continuous abutment with the step portion, and the socket apex portion is positioned at substantially the same height as, or higher than, apex portions of the interdental papilla areas that are seen from a labial side in a state in which the artificial tooth is attached to the socket.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Maho Okumura, Ayumi Koiso
  • SELF-ADHESIVE SHEET
    Publication number: 20230193087
    Abstract: Provided is a self-adhesive sheet including a 4-methyl-1-pentene-based polymer. In the self-adhesive sheet, it is preferable that at least one or more temperatures showing a local maximum value of a loss tangent (tan ?) , which is obtained by dynamic viscoelasticity measurement under conditions of a temperature rising rate of 4° C./min, a frequency of 1.59 Hz, and a strain amount of 0.1%, are present in a range of 10° C. or higher and 100° C. or lower, the local maximum value of the loss tangent is 0.5 or more and 3.5 or less, an arithmetic average roughness Ra on one surface of the self-adhesive sheet is in a range of 0.01 to 10 µm, and a ten-point average roughness Rz is in a range of 0.1 to 50 µm.
    Type: Application
    Filed: March 18, 2021
    Publication date: June 22, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shigeo NISHIKAWA, Syuji TAHARA, Tsunetoshi SHINADA, Takeshi UEDA
  • PELLICLE FILM FOR PHOTOLITHOGRAPHY, PELLICLE, PHOTOLITHOGRAPHY MASK, PHOTOLITHOGRAPHY SYSTEM, AND METHOD OF PRODUCING PELLICLE FILM FOR PHOTOLITHOGRAPHY
    Publication number: 20230194977
    Abstract: A pellicle film for photolithography including a carbon nanotube film, in which the carbon nanotube film contains carbon nanotubes; the carbon nanotube film transmits 80% or more of EUV light at a wavelength of 13.5 nm; the carbon nanotube film has a thickness from 1 nm to 50 nm; the carbon nanotube film is deposited on a silicon substrate, in which the 3? of the reflectance is 15% or less when the reflectance of the deposited carbon nanotube film is measured using a reflectance spectrophotometer-based film thickness meter under the following conditions: the diameter of measurement spots, 20 ?m; the reference measurement wavelength, 285 nm; the number of measurement spots, 121 spots; the distance between the centers of adjacent measurement spots, 40 ?m.
    Type: Application
    Filed: April 2, 2021
    Publication date: June 22, 2023
    Applicants: MITSUI CHEMICALS, INC., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Yousuke ONO, Hisako ISHIKAWA, Ryohei OGAWA, Atsushi OKUBO, Kazuo KOHMURA, Atsuko SEKIGUCHI, Yuichi KATO, Takeo YAMADA, Ying ZHOU
  • Polyamide resin composition with high fluidity
    Patent number: 11680165
    Abstract: Disclosed is a polyamide resin composition including 50% to 99% by mass of a polyamide (P) and 1% to 50% by mass of an acid-modified polyolefin (Q) satisfying the following requirements (1) to (3). (1) A melt flow rate (MFR) as measured at 230° C. under a load of 2.16 kg is 50 to 200 (g/10 min). (2) An acid modification amount is 0.1% to 2.0% by mass. (3) The acid-modified polyolefin (Q) includes a modified product (q1) of an elastomer including 10% to 95% by mole of an ethylene-derived skeleton unit, 0% to 80% by mole of a propylene-derived skeleton unit, and 3% to 40% by mole of a skeleton unit derived from an ?-olefin having 4 to 8 carbon atoms (with a total amount of the ethylene-derived skeleton unit, the propylene-derived skeleton unit, and the skeleton unit derived from an ?-olefin being 100% by mole), the elastomer being modified by maleic acid or an anhydride thereof.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: June 20, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hidetake Nakano, Tetsuya Nakamura, Hirokazu Tanaka
  • MATERIAL FOR FORMING UNDERLAYER FILM, RESIST UNDERLAYER FILM, METHOD OF PRODUCING RESIST UNDERLAYER FILM, AND LAMINATE
    Publication number: 20230185195
    Abstract: A material for forming an underlayer film according to the present invention is a material for forming an underlayer film which is used to form a resist underlayer film used in a multi-layer resist process, the material including a cyclic olefin polymer which has a repeating structural unit [A] represented by Formula (1) and a repeating structural unit [B] represented by Formula (2), in which a molar ratio [A]/[B] of the structural unit [A] to the structural unit [B] in the cyclic olefin polymer is greater than or equal to 5/95 and less than or equal to 95/5.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 15, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koji INOUE, Takashi ODA, Keisuke KAWASHIMA
  • Polyamide resin composition, molded body thereof, and method for manufacturing laser-welded body
    Patent number: 11673341
    Abstract: This polyamide resin composition contains: 30-89.9 parts by mass of a polyamide resin (A) having a melting point of at least 300° C.; 0-45 parts by mass of a polyamide resin (B) having substantially no melting point; 0.1-5 parts by mass of a light-transmitting pigment (C); and 10-55 parts by mass of a fibrous filler (D) (the total amount of (A), (B), (C), and (D) is 100 parts by mass). The polyamide resin (A) contains at least a terephthalic acid-derived component unit. In a molded body of the polyamide resin composition, the corrected heat of fusion (?HR) is 10-70 J/g, and the transmittance of laser light having a wavelength of 940 nm is at least 15% at a thickness of 1.6 mm.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: June 13, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kohei Nishino, Yohei Hotani, Isao Washio
  • XYLYLENE DIISOCYANATE-CONTAINING CONTAINER, METHOD FOR STORING XYLYLENE DIISOCYANATE, AND METHOD FOR TRANSPORTING XYLYLENE DIISOCYANATE
    Publication number: 20230166883
    Abstract: In a xylylene diisocyanate-containing container including a xylylene diisocyanate and a container accommodating the xylylene diisocyanate, a resin layer is provided on an inner surface of a container.
    Type: Application
    Filed: June 14, 2021
    Publication date: June 1, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masaru KAWAGUCHI, Yasuaki SATO, Mai SHIRAI
  • METAL-RESIN COMPLEX, COOLING DEVICE, METHOD FOR MANUFACTURING METAL-RESIN COMPLEX, AND SAFETY VALVE STRUCTURE
    Publication number: 20230168050
    Abstract: A metal-resin complex, comprising a space surrounded by a metal component and a resin component, the resin component comprising at least one fragile portion.
    Type: Application
    Filed: June 8, 2021
    Publication date: June 1, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Mizue KURIYAGAWA, Kazuki KIMURA
  • Multilayer Structure, Method for Producing Same, Sheet for Preventing Diffusion of Hazardous Substances, Landfill Geomembrane, and Multilayer Pipe
    Publication number: 20230158785
    Abstract: Provided are: a multilayer structure having a strong initial interlayer adhesive force, with a decrease of the interlayer adhesive force being prevented even in a case of use in a harsh environment such as exposure to hot water, an acid, or an alkali for a long period of time; a method for producing such a multilayer structure; and a sheet for preventing diffusion of hazardous substances, a landfill geomembrane, and a multilayer pipe, each including such a multilayer structure.
    Type: Application
    Filed: April 13, 2021
    Publication date: May 25, 2023
    Applicants: KURARAY CO., LTD., MITSUI CHEMICALS, INC.
    Inventors: Kazuhira Hata, Tatsuya Oshita, Ryohei Shiga
  • THREE-DIMENSIONAL MODELING APPARATUS, CONTROL APPARATUS, AND METHOD FOR MANUFACTURING MODELED OBJECT
    Publication number: 20230158748
    Abstract: A three-dimensional modeling apparatus includes a container, a carrier, and a blower unit. The container accommodates a curable composition. The carrier is configured to face an inner surface of the container and to have a variable distance with respect to the inner surface. The blower unit performs blowing between the carrier and the container. Further, in a case where the curable composition is cured in the container, the modeled object and the support portion, which connects the carrier and the modeled object, are formed. A wind from the blower unit is at least temporarily output toward at least one of the modeled object and the support portion.
    Type: Application
    Filed: January 10, 2023
    Publication date: May 25, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hirohisa SHIODE, Hiroshi YAMANAKA