Patents Assigned to Teijin Limited
  • Publication number: 20220200098
    Abstract: An embodiment of the present invention provides a separator for a non-aqueous secondary battery containing a porous substrate; a heat-resistant porous layer that is provided on one side or on both sides of the porous substrate, and that contains a binder resin and inorganic particles, the inorganic particles having an average primary particle diameter from 0.01 ?m to less than 0.45 ?m; and an adhesive layer that is provided on one side or on both sides of a laminated body of the porous substrate and the heat-resistant porous layer, and adhesive resin particles adhered to the laminated body.
    Type: Application
    Filed: June 3, 2020
    Publication date: June 23, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Susumu HONDA, Satoshi NISHIKAWA
  • Publication number: 20220195134
    Abstract: An object of the invention is to provide a thermoplastic resin prepreg that gives a fiber-reinforced composite material with excellent mechanical strength even through molding at a low temperature within a short period of time. The thermoplastic resin prepreg of the invention is a thermoplastic resin prepreg including at least a reinforcing fiber substrate and a thermoplastic resin composition partially or completely impregnated in the reinforcing fiber substrate. The thermoplastic resin prepreg is configured such that the thermoplastic resin composition contains 50 mass % or more of polyetherketoneketone (PEKK) based on the total thermoplastic resin composition, and is a thermoplastic resin composition having a crystallization enthalpy of 22 J/g or more as measured by a differential scanning calorimeter (DSC) at a cooling rate of 50° C./min from 400° C.
    Type: Application
    Filed: April 2, 2020
    Publication date: June 23, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Akimichi ODA, Hiroaki KUWAHARA
  • Publication number: 20220190441
    Abstract: Provided is a separator for a non-aqueous secondary battery containing a porous substrate; and an adhesive porous layer that is provided on one side or on both sides of the porous substrate, and that contains a polyvinylidene fluoride type resin, an acrylic type resin and metal sulfate particles, in which an average primary particle diameter of the metal sulfate particles contained in the adhesive porous layer is from 0.01 ?m to less than 0.30 ?m.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 16, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Hiroshi SAKURAI, Rika KURATANI, Satoshi NISHIKAWA
  • Publication number: 20220181632
    Abstract: A polymeric binder includes an ion-conducting polymer containing a polymer and a metal ion. The polymer is preferably selected from the group consisting of polyester, polyether, anionic polymer, polycarbonate, and silicone. An all-solid-state secondary battery includes an inorganic solid electrolyte, and the inorganic solid electrolyte in at least an electrode mixture layer or an inorganic solid electrolyte layer is bound together by the polymeric binder.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 9, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Shuto ISHII, Junichi TOGASAKI, Kazuki YACHI, Tomoyoshi YAMAMOTO, Takahiro DAIDO
  • Publication number: 20220176684
    Abstract: A composite of polymer member and inorganic substrate, a method of manufacturing the same, and a polymer member therefor are provided. A method for manufacturing a composite 210, 220 of polymer member and inorganic substrate includes: providing a composite 110, 120 of thermally modified polymer layer and inorganic substrate in which one or more thermally modified polymer layers 20, 21, 22 are adhered onto an inorganic substrate 10, and bonding a polymer member 30, 31, 32 to the inorganic substrate via the one or more thermally modified polymer layers 20, 21, 22.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 9, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Junshi SOEDA, Yoshinori IKEDA
  • Patent number: 11352472
    Abstract: The present invention provides a prepreg which is composed of at least a matrix resin and reinforcing fibers, and which is characterized in that: conductive parts are formed on one surface or both surfaces of a fiber layer that is formed of the reinforcing fibers; and the volume resistivity ? (?cm) of the fiber layer in the thickness direction, the thickness t (cm) of the fiber layer and the average interval L (cm) between the conductive parts arranged on the prepreg surface satisfy formula (1). t/?×1/L×100?0.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: June 7, 2022
    Assignee: TEIJIN LIMITED
    Inventors: Kazuma Kurokawa, Tetsuya Akamatsu, Hiroaki Kuwahara
  • Publication number: 20220169097
    Abstract: A vehicle component includes a body, a first beam, and a second beam. The body has a first fixture region and a second fixture region. The first beam is formed of a first composite material and has a first beam shape. The first beam is attached to the body and extends between the first fixture region and the second fixture region of the body. The second beam is formed of a second composite material and has a second beam shape that is simple compared to the first beam shape. The second beam is attached to the body and extends between the first fixture region and the second fixture region of the body.
    Type: Application
    Filed: March 11, 2020
    Publication date: June 2, 2022
    Applicants: Teijin Limited, Continental Structural Plastics, Inc.
    Inventors: Masatomo Teshima, Yoshiharu Asada, Yoshiki Kashiwagi, Marc-Philippe Toitgans
  • Publication number: 20220161200
    Abstract: One embodiment of the present invention provides a hydrophilic composite porous membrane including: a polyolefin microporous membrane, and an olefin/vinyl alcohol-based resin with which at least one main surface and inner surfaces of pores of the polyolefin microporous membrane are coated, in which a ratio t/x of a membrane thickness t (?m) to an average pore diameter x (?m), as measured with a perm porometer, is from 50 to 630.
    Type: Application
    Filed: January 28, 2020
    Publication date: May 26, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Mami NAMBU, Yoshikazu IKUTA, Yu NAGAO
  • Publication number: 20220166026
    Abstract: A polymeric binder includes copolymerized aliphatic polycarbonate having structural units expressed by Formula (1) and Formula (2). In Formula (1) and Formula (2), R1 and R2 independently denote alkylene groups having 2 to 20 carbon atoms and being nonidentical to each other, and m and n independently denote integers equal to or greater than 3 and equal to or less than 60.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 26, 2022
    Applicant: Teijin Limited
    Inventors: Shuto ISHII, Junichi TOGASAKI, Kazuki YACHI, Tomoyoshi YAMAMOTO, Takahiro DAIDO
  • Publication number: 20220165457
    Abstract: An object of the present invention is to provide an insulation sheet having high thermal conductivity in the in-plane direction. The present invention provides an insulation sheet comprising insulating particles and a binder resin, wherein, for the entire cross-section of the sheet perpendicular to the in-plane direction, the insulation sheet contains 75 to 97% by area of the insulating particles, 3 to 25% by area of the binder resin, and 10% by area or less of the voids.
    Type: Application
    Filed: December 26, 2019
    Publication date: May 26, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Masanori MAEDA, Yoshinori IKEDA, Masayuki CHOKAI, Takuya MURAKAMI
  • Patent number: 11339249
    Abstract: Provided are a novel compound having a fluorene skeleton, and a method for manufacturing the same, the compound having a low palladium content or other content of a specific metal or content of a specific compound in a raw material alcohol, and being excellent in hue or various characteristics (optical characteristics, heat resistance, moldability, and other characteristics) as a raw material or in a resin that uses the raw material.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: May 24, 2022
    Assignee: TEIJIN LIMITED
    Inventor: Yasuhiko Tomonari
  • Patent number: 11338250
    Abstract: A substrate for a liquid filter, which includes a polyolefin microporous membrane, the polyolefin microporous membrane having a water permeation efficiency of 0.10 to 0.50 ml/min·cm2, the polyolefin microporous membrane having a bubble point of 0.50 MPa or more and 0.80 MPa or less.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: May 24, 2022
    Assignee: TEIJIN LIMITED
    Inventors: Takao Ohno, Kouji Furuya
  • Patent number: 11339285
    Abstract: A multilayer body includes at least one layer (C) including a resin composition; and at least one layer (D) including a thermoplastic resin, in which the resin composition includes a polycarbonate resin (A) and an acrylic resin (B) in a weight ratio of 40:60 to 99:1, the polycarbonate resin (A) includes, as main repeating units, a unit (a-1) represented by the following formula (a-1): and a unit (a-2) represented by the following formula (a-2): wherein W represents an alkylene group having 1 to 20 carbon atoms or a cycloalkylene group having 6 to 20 carbon atoms, R represents a branched or linear alkyl group having 1 to 20 carbon atoms, or a cycloalkyl group having 6 to 20 carbon atoms and optionally having a substituent, and m represents an integer of 0 to 10, and the molar ratio of the unit (a-1) and the unit (a-2) (a-1/a-2) is 40/60 to 95/5. The multilayer body has excellent transparency, chemical resistance, surface hardness, and adhesion.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: May 24, 2022
    Assignee: TEIJIN LIMITED
    Inventors: Kenta Imazato, Shoichi Maekawa, Katsuhiro Yamanaka
  • Patent number: 11338252
    Abstract: A substrate for a liquid filter, which includes a polyolefin microporous membrane, the polyolefin microporous membrane having a water permeation efficiency of 1.21 to 2.90 ml/min·cm2, the polyolefin microporous membrane having a bubble point of 0.40 MPa to 0.65 MPa, the polyolefin microporous membrane having a compressibility of less than 15%.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: May 24, 2022
    Assignee: TEIJIN LIMITED
    Inventors: Takao Ohno, Kouji Furuya
  • Patent number: 11338251
    Abstract: A substrate for a liquid filter, which includes a polyolefin microporous membrane, the polyolefin microporous membrane having a water permeation efficiency of 0.51 to 1.20 ml/min·cm2, the polyolefin microporous membrane having a bubble point of 0.45 MPa or more and 0.70 MPa or less, the polyolefin microporous membrane having a compressibility of less than 15%.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: May 24, 2022
    Assignee: TEIJIN LIMITED
    Inventors: Takao Ohno, Kouji Furuya
  • Publication number: 20220158301
    Abstract: Provided is a separator for a non-aqueous secondary battery containing a porous substrate; and a heat-resistant porous layer that is provided on one side or on both sides of the porous substrate, and that contains a polyvinylidene fluoride type resin A that is a polyvinylidene fluoride type resin containing a tetrafluoroethylene unit; a polyvinylidene fluoride type resin B that is a polyvinylidene fluoride type resin other than the polyvinylidene fluoride type resin A; and a filler, in which an average primary particle diameter of the filler contained in the heat-resistant porous layer is from 0.01 ?m to 1.0 ?m.
    Type: Application
    Filed: February 13, 2020
    Publication date: May 19, 2022
    Applicant: TEIJIN LIMITED
    Inventor: Megumi SATO
  • Patent number: 11332614
    Abstract: The present invention provides a reinforced polycarbonate resin composition having all of excellent strength, impact resistance, heat resistance, flame retardancy and thermal stability. A reinforced polycarbonate resin composition which contains 100 parts by weight of a resin composition composed of (A) 50 to 95 parts by weight of a polycarbonate resin (component A) and (B) 5 to 50 parts by weight of a fibrous filler (component B) and (C) 2 to 45 parts by weight of a fluororesin (component C-I) or 2 to 45 parts by weight of a fluororesin (component C-II), wherein (I) the fluororesin (component C-I) is a copolymer containing polymerization units respectively represented by general formulae [1] and [2] and has a melting point of 200 to 280° C., and (II) the fluororesin (component C-II) is a copolymer containing polymerization units respectively represented by general formulae [1] and [2], has a melting point of 240 to 300° C., and has a 5% weight loss temperature of 470° C.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 17, 2022
    Assignees: TEIJIN LIMITED, DAIKIN INDUSTRIES, LTD.
    Inventors: Shunsuke Okuzawa, Toshiyuki Miyake, Koji Nakanishi, Masaji Komori, Hideki Kono
  • Publication number: 20220145041
    Abstract: The present invention provides a resin composition which has an infrared ray-blocking ability with excellent moist heat resistance while maintaining high transparency. The resin composition of the present invention contains, relative to (A) 100 parts by weight of a polycarbonate resin (component A), (B) 0.0001 to 0.2 part by weight of composite tungsten oxide fine particles (component B) represented by the general formula: MxWyOz (wherein M represents at least one element selected from H, He, an alkali metal, an alkaline earth metal, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi, and I, W represents tungsten, O represents oxygen, 0.001?x/y?1, and 2.2?z/y?3.0), (C) 0.0001 to 0.1 part by weight of an epoxy resin (component C), and (D) 0.001 to 0.
    Type: Application
    Filed: February 28, 2020
    Publication date: May 12, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Yosuke ONISHI, Akika ITO
  • Publication number: 20220145005
    Abstract: It is an object of this invention to provide an optical member that is able to cut ultraviolet rays without employing means such as addition of an ultraviolet absorber to the resin, using an ultraviolet cut filter or using ultraviolet absorption coating, as well as a thermoplastic resin to be used for the optical member. The thermoplastic resin of the invention comprises a spatial structural component unit, wherein the spatial structural component unit includes four or more aromatic groups selected from the group consisting of monocyclic aromatic groups and fused polycyclic aromatic groups, the spatial structural component unit has three or more monocyclic aromatic groups and/or heterocyclic aromatic groups in a conjugated structure, or one or more monocyclic aromatic groups and one or more fused polycyclic aromatic groups in a conjugated structure, or two or more fused polycyclic aromatic groups in a conjugated structure, and in a 0.
    Type: Application
    Filed: February 26, 2020
    Publication date: May 12, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Tatsuya OYAMA, Manabu MATSUI
  • Publication number: 20220149482
    Abstract: Provided is a separator for a non-aqueous secondary battery containing a porous substrate using a polyolefin porous film; and a heat-resistant porous layer that is provided only on one side of the porous substrate, and that contains a heat-resistant resin and a filler, in which a TD elastic modulus of the porous substrate is from 1.2 GPa to 5.0 GPa.
    Type: Application
    Filed: March 23, 2020
    Publication date: May 12, 2022
    Applicant: TEIJIN LIMITED
    Inventors: Tokimitsu KOBAYASHI, Hiroshi SAKURAI, Satoshi NISHKAWA