公开(公告)号：US11578168B2

公开(公告)日：2023-02-14

申请号：US17043118

申请日：2019-03-20

Applicant: TEIJIN LIMITED

Inventor： Tatsuya Oyama ,  Kazuyoshi Ogasawara ,  Atsushi Umeki ,  Keisuke Sato ,  Manabu Matsui

IPC: C08G64/00 ,  C08G64/16 ,  G02B1/04

Abstract: The purpose of the present invention is to provide a high temperature/humidity resistant polycarbonate resin without using bisphenol A as a raw material. The present invention relates to a polycarbonate resin comprising the repeating units of formulas (1), (2) and (3), wherein the content of the repeating unit of formula (3) is 5 mol% to 50 mol%, and the refractive index is 1.570 to 1.600. {In formula (1), R1 and R2 each represent a hydrogen atom or a C1-10 hydrocarbon group.} {In formula (3), n ranges from 0 to 8, and the R symbols are each selected from C1-3 alkyl groups}.

公开(公告)号：US11560646B2

公开(公告)日：2023-01-24

申请号：US16768370

申请日：2018-11-22

Applicant: TEIJIN LIMITED ,  TEIJIN CARBON EUROPE GMBH

Inventor： Shuhei Yoshida ,  Hidekazu Yoshikawa ,  Yosuke Nakamura ,  Hironori Kawamoto ,  Takaya Suzuki ,  Toru Kaneko

IPC: D01F9/22 ,  C08J5/24

Abstract: An object of the present invention is to provide a carbon fiber which exhibits excellent strength development rate when used in a composite material. The present invention that solves the problems is a carbon fiber which simultaneously satisfies the following formulae (1) and (2): Lc/d≤3  (1) TS×d×Lc>6.0×105  (2) wherein: Lc is an X-ray crystallite size (Å), d is a filament diameter (μm), and TS is a strand tensile strength (MPa).

公开(公告)号：US11535979B2

公开(公告)日：2022-12-27

申请号：US17023970

申请日：2020-09-17

Applicant: TEIJIN LIMITED

Inventor： Shuhei Okamura ,  Shintaro Shimada ,  Akira Teraoka ,  Takeya Dei

IPC: D06M15/55 ,  C04B14/38 ,  D06M13/395 ,  C04B18/02 ,  C04B16/06 ,  C04B20/10 ,  C04B28/02

Abstract: Provided is a fiber material for cement reinforcement, configured such that a resin A containing an isocyanate compound as a constituent component is present inside a fiber bundled body, and a resin B containing an epoxy resin as a constituent component is present on a surface of the fiber bundled body. Further, it is preferable that the resin A contains a polyol or an epoxy compound as a constituent component in addition to the isocyanate compound, the resin B contains an acrylic-modified epoxy resin or a bisphenol-A epoxy resin as a main component, the fiber bundled body has a tensile strength of 7 cN/dtex or more, and the fiber bundled body includes 50 to 3,000 single fibers. The invention is also addressed to a concrete or mortar molded article using the above fiber material for reinforcement.

公开(公告)号：US11441030B2

公开(公告)日：2022-09-13

申请号：US15763282

申请日：2016-09-21

Applicant: TEIJIN LIMITED

Inventor： Kenta Imazato ,  Shoichi Maekawa ,  Katsuhiro Yamanaka

IPC: C08L69/00 ,  C08G64/02 ,  C08G64/30 ,  C08J5/18 ,  C08L33/06 ,  C08L33/12

Abstract: Provided is a resin composition comprising: a polycarbonate resin (A) containing, 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 a C1-20 alkylene group or a C6-20 cycloalkylene group, R represents a branched or linear-chain C1-20 alkyl group or a C6-20 cycloalkyl group optionally substituted, and m represents an integer of 0 to 10) and an acrylic resin (B), and the polycarbonate resin and the acrylic resin are in a weight ratio of 40:60 to 99:1, wherein the resin composition has a single glass transition temperature, which is in the range of 90° C. to 150° C., and the resin composition has excellent transparency, chemical resistance, surface hardness and heat resistance, and has a low photoelastic coefficient.

公开(公告)号：US20220200098A1

公开(公告)日：2022-06-23

申请号：US17604790

申请日：2020-06-03

Applicant: TEIJIN LIMITED

Inventor： Susumu HONDA ,  Satoshi NISHIKAWA

IPC: H01M50/446 ,  H01M50/449 ,  H01M50/443 ,  H01M50/489 ,  H01M10/0525 ,  B32B7/12 ,  B32B5/24 ,  C09J127/16 ,  C09J7/38 ,  C09J7/29

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 μm to less than 0.45 μm; 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.

公开(公告)号：US20220176684A1

公开(公告)日：2022-06-09

申请号：US17435893

申请日：2020-03-06

Applicant: TEIJIN LIMITED

Inventor： Junshi SOEDA ,  Yoshinori IKEDA

IPC: B32B27/32 ,  B32B7/04 ,  B32B9/04 ,  B32B15/085

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.

公开(公告)号：US11352472B2

公开(公告)日：2022-06-07

申请号：US16093367

申请日：2017-04-13

Applicant: TEIJIN LIMITED

Inventor： Kazuma Kurokawa ,  Tetsuya Akamatsu ,  Hiroaki Kuwahara

IPC: C08J5/24 ,  B32B27/12 ,  C08J5/06

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 ρ (Ωcm) 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/ρ×1/L×100≥0.5  Formula (1):

公开(公告)号：US11338250B2

公开(公告)日：2022-05-24

申请号：US14889180

申请日：2014-05-02

Applicant: TEIJIN LIMITED

Inventor： Takao Ohno ,  Kouji Furuya

IPC: B01D71/26 ,  B01D69/02 ,  B01D67/00 ,  B01D69/10

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.

公开(公告)号：US20220149482A1

公开(公告)日：2022-05-12

申请号：US17439602

申请日：2020-03-23

Applicant: TEIJIN LIMITED

Inventor： Tokimitsu KOBAYASHI ,  Hiroshi SAKURAI ,  Satoshi NISHKAWA

IPC: H01M50/489 ,  H01M50/451 ,  H01M50/417 ,  H01M50/423 ,  H01M50/446

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.

公开(公告)号：US11291373B2

公开(公告)日：2022-04-05

申请号：US16635390

申请日：2018-06-15

Applicant: TEIJIN LIMITED

Inventor： Tasuku Kimura ,  Hirokazu Hayashi ,  Ryo Yasumitsu ,  Hiroshi Nose ,  Yu Ogawa

IPC: A61B5/01 ,  A61B5/00

Abstract: A temperature sensor (210) measures a temperature inside clothes being a temperature inside the clothes worn by a user. The acceleration sensor (220) detects acceleration applied to the user. A processing device (100) estimates a deep body temperature that is a temperature inside the body of the user based on the temperature inside the clothes measured by the temperature sensor (210) and an acceleration detected by the acceleration sensor (220).