Patents Assigned to Mitsubishi Chemical Corporation
  • Publication number: 20210309820
    Abstract: Use of a sizing agent having a heat weight loss B-1 of 65% or more as determined by a specific measurement method, or a sizing agent containing a surfactant and a compound represented by formula (1):
    Type: Application
    Filed: June 22, 2021
    Publication date: October 7, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kenji KANETA, Naoki SUGIURA, Kouki WAKABAYASHI
  • Publication number: 20210313516
    Abstract: There are provided an organic photodiode having high photoelectric conversion efficiency and a low dark current value and an infrared CMOS sensor including the organic photodiode. The organic photodiode includes, in sequence, a first electrode, a hole transport layer, a photoelectric conversion layer, and a second electrode. The photoelectric conversion layer contains a p-type semiconductor and an n-type semiconductor. The hole transport layer contains a polymer compound containing a repeat unit represented by formula (2) illustrated below. The polymer compound contains groups that form mutual bonds between carbon atoms of side chains of molecules of the polymer compound at 230° C.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Kazuki Okabe
  • Publication number: 20210292608
    Abstract: A release film may exhibit excellent releasability against silicone adhesives and yet reduce the content of fluorine atoms. The release film has a first layer formed from a silicone composition containing a fluorine atom-free curable silicone as a main component on at least one side of a film-shaped substrate, and a second layer containing a component having a fluorine-substituted group on the upper side of the first layer, wherein the first layer has an elastic modulus (F1), as measured using a nanoindenter, of 0.16 GPa or more.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventor: Yosuke OSEKI
  • Patent number: 11124587
    Abstract: An object of the present invention is to provide an acrylic resin powder suitable for hot melt adhesives which dissolves in polyol components such as polyalkylene glycols faster than conventional ones, as well as a resin composition which can be produced with lower energy than conventional ones. The object is achieved by using an acrylic resin powder comprising: a copolymer which contains a methyl methacrylate unit, wherein a volume average particle size of a primary particle is 0.1 to 10 ?m, a volume average particle size of a secondary particle is 20 to 80 ?m, a weight average molecular weight is 10,000 to 500,000, and the acrylic resin powder is soluble in polypropylene glycol having a weight average molecular weight of 1000 under stirring at a concentration of 10% by mass at 60° C. for 60 minutes.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: September 21, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akiko Miyagawa, Tooru Kondou, Eriko Satou
  • Publication number: 20210276281
    Abstract: Provided are a cloth prepreg for a fiber reinforced resin molded article having a surface through which a texture of a woven fabric formed of reinforcing fiber bundles is visible, in which a molded article having an improved appearance in a case of being compression molded is obtained; a method for manufacturing the cloth prepreg; a fiber reinforced resin molded article having a surface through which a texture of a woven fabric formed of reinforcing fiber bundles is visible, and having improved industrial producibility and an improved appearance; and a method for manufacturing the molded article. The cloth prepreg has a surface through which a texture of a woven fabric made of a reinforcing fiber bundle as a warp and a weft is visible, in which a loosening rate of weft is 0.0% to 0.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 9, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventor: Kazuhisa Ikeda
  • Patent number: 11111419
    Abstract: Provided is a novel transparent adhesive material having low relative permittivity as well as excellent adhesive characteristics, whereby an olefinic polymer resin layer and an acrylic polymer adhesive layer can be suitably integrated. Suggested is a transparent adhesive material provided with an outermost surface layer containing an acrylic polymer (B) and a photocrosslinking initiator, and an intermediate layer containing an olefinic polymer (A), a crosslinking agent, and a photocrosslinking initiator, in which the intermediate layer contains a (meth)acrylate monomer as the crosslinking agent.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: September 7, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shinya Fukuda, Makoto Inenaga
  • Publication number: 20210273058
    Abstract: An object is to provide a nonpolar or semipolar GaN substrate having improved size and crystal quality. A self-standing GaN substrate has an angle between the normal of the principal surface and an m-axis of 0 degrees or more and 20 degrees or less, wherein: the size of the projected image in a c-axis direction when the principal surface is vertically projected on an M-plane is 10 mm or more; and when an a-axis length is measured on an intersection line between the principal surface and an A-plane, a low distortion section with a section length of 6 mm or more and with an a-axis length variation within the section of 10.0×10?5 ? or less is observed.
    Type: Application
    Filed: April 23, 2021
    Publication date: September 2, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Satoru NAGAO, Yusuke TSUKADA, Kazunori KAMADA, Shuichi KUBO, Hirotaka IKEDA, Kenji FUJITO, Hideo FUJISAWA, Yutaka MIKAWA, Tae MOCHIZUKI
  • Publication number: 20210269495
    Abstract: The purpose of the present invention is to provide a modified activin A. The present invention provides activin A comprising a modified proregion.
    Type: Application
    Filed: May 14, 2021
    Publication date: September 2, 2021
    Applicants: Mitsubishi Chemical Corporation, UniBio Corporation
    Inventors: HIDEHITO TAKAYAMA, Risa Watanabe, Yutaka Takemoto, Hiroyuki Tanaka, Hiroshi Kawabata, Kyoji Yoshinaka
  • Patent number: 11105465
    Abstract: A pressure vessel including: a cylindrical straight body section and dome sections provided at both ends of the body section, where: the body section and the dome sections are composed of a resin main body, and an outer shell made of a fiber reinforced resin material, the outer shell being on the outside of the main body; each of dome sections has pinch-off regions extending from a tip of the dome section toward the body section; and when an end of each of the pinch-off regions opposite to the tip of the dome section is located in a region where a distance from the tip of the dome section to the end of each of the pinch-off regions opposite to the tip of the dome section in the axial direction of the straight body section is less than a distance from the tip of each of the dome sections to a boundary between the straight body section of the main body and each of the dome sections in the axial direction of the straight body section.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: August 31, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Keigo Yoshida, Tadahiro Nishimoto
  • Patent number: 11104793
    Abstract: A molding material that enables acquirement of a fiber-reinforced composite material which has excellent demoldability from a mold and excellent surface appearance, which contaminates a mold surface after molding less, and which has excellent mechanical properties and heat resistance; and a fiber-reinforced composite material which has excellent demoldability from a mold and surface appearance, which contaminates a mold surface after molding less, and which has excellent mechanical properties and heat resistance, are provided. A molding material of the present invention includes a component (A): an epoxy resin; a component (B): an epoxy resin curing agent; a component (C): a compound that has a solubility parameter of 11.2 or less and a melting point of 115° C. or lower; and a reinforcement fiber.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: August 31, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akira Oota, Masahiro Ichino, Takuya Teranishi, Yusuke Watanabe, Natsumi Mukouzaka
  • Publication number: 20210261726
    Abstract: Provided is a polyester resin having excellent adhesiveness and excellent grindability. One aspect of the polyester resin of the present invention is a polyester resin including a constitutional unit A derived from a carboxylic acid having a cyclic structure and containing 5 or more carboxyl groups and a constitutional unit derived from a dicarboxylic acid, in which the constitutional unit A has a content of 0.01 parts by mole or more and 45 parts by mole or less with respect to 100 parts by mole of the constitutional unit derived from a dicarboxylic acid.
    Type: Application
    Filed: May 13, 2021
    Publication date: August 26, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuka TACHIBANA, Tadahiro OZAWA, Asako KANEKO
  • Publication number: 20210260856
    Abstract: The present invention relates to a laminate including a protection layer, a barrier layer, and a heat sealing layer, in which a product of a tensile elastic modulus A in a reference direction, a tensile elastic modulus B in a direction forming an angle of 45° with respect to the reference direction, and a tensile elastic modulus C in a direction forming an angle of 90° with respect to the reference direction is 0.22 (GPa)3 or less, and a value of the tensile elastic modulus B to the tensile elastic modulus A, a value of the tensile elastic modulus C to the tensile elastic modulus A, and a value of the tensile elastic modulus C to the tensile elastic modulus B are each 0.1 to 10.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Shinji NAKANISHI, Kohei OURA, Yoshitaka MATSUMURA
  • Publication number: 20210261765
    Abstract: A conductive composition comprising a conductive polymer (A) having an acidic group, and a basic compound (B), wherein: an area ratio (X/Y) is 0.046 or less as calculated by an specific method, which is a ratio an area (X) of a region corresponding to molecular weight (M) ranging from 300 to 3300, relative to an area (Y) of an entire region ascribed to the conductive polymer (A); or a ratio, ZS/ZR, is 20 or less, wherein the ZS is a maximum value of fluorescence intensity in a wavelength region of 320 to 420 nm when a fluorescence spectrum is measured using a spectrofluorometer at an excitation wavelength of 230 nm with respect to a measurement solution obtained by diluting the conductive composition with water so as to adjust solids content of the conductive polymer (A) to 0.6% by mass, and the ZR is a maximum value of Raman scattering intensity in a wavelength region of 380 to 420 nm when a fluorescence spectrum of water is measured using a spectrofluorometer at an excitation wavelength of 350 nm.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 26, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Saki Nakano, Yoshiko Irie, Masashi Uzawa, Akira Yamazaki
  • Patent number: 11099499
    Abstract: The present invention configures an image removing device capable of certainly and cleanly removing an image comprising an image forming substance and formed on the surface of a plastic recording material. An image removing device is provided with a means 2 for applying an ultraviolet curable resin and a means 4 for emitting ultraviolet light above a conveyance path for a recording material 1 on the surface of which an image is formed, and removes the image from the surface of the recording material 1 by transferring an image forming substance 1a to the ultraviolet curable resin and attaching the image forming substance, together with the ultraviolet curable resin, to the surface of a release body 5 by irradiating the ultraviolet light.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 24, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hidetaka Kimura, Keita Kawanami
  • Patent number: 11098193
    Abstract: A (meth)acrylate resin material comprising a polymer (A1) having constituent units (a1) derived from a compound represented by formula (1) and constituent units (a2) derived from methyl methacrylate, and an acid (B) and/or a nucleating agent (C). In the formula, Ar represents an aryl group, and the aromatic ring in Ar is directly bonded to the ester end in formula (1).
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 24, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yutaka Aoki, Fumi Ooba, Masahiro Ueda, Shinji Matsuoka, Mitsufumi Nodono, Hikaru Momose
  • Patent number: 11097209
    Abstract: An object of the present invention is to provide a separation method capable of efficiently separating a light liquid and a heavy liquid from a mixed liquid containing the light liquid, the heavy liquid, and an emulsion liquid of the light liquid and the heavy liquid, such as an emulsion-layer extraction liquid in a vicinity of an interface in an extraction column. The present invention relates to a separation method for continuously separating a light liquid and a heavy liquid having a specific gravity larger than that of the light liquid from a mixed liquid containing the light liquid, the heavy liquid, and an emulsion liquid of the light liquid and the heavy liquid by introducing the mixed liquid into a separation tank, in which a specific separation layer is used for the separation tank.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: August 24, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yasushi Ogawa, Masakazu Katou, Yukihiro Hasegawa
  • Publication number: 20210253808
    Abstract: A heat-curable epoxy resin composition is a mixture in which an epoxy compound represented by formula (al), a polyisocyanate, a bisphenol type liquid epoxy resin and an epoxy resin curing agent are blended. An amount of the epoxy compound, per 100 parts by mass of all the epoxy resin blended in the heat-curable epoxy resin composition, is 5 parts by mass or more.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 19, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hisaya USHIYAMA, Yusuke Watanabe, Natsumi Mukouzaka, Hayato Ogasawara, Akira Ota
  • Publication number: 20210253788
    Abstract: A polycarbonate resin composition may include a first polycarbonate resin and a second polycarbonate resin, which a molded article may include, and a multilayer body may have a resin layer A including the polycarbonate resin composition and a resin layer B including a resin different from the resin layer A. The first polycarbonate resin may include 40% by weight or more of a structural unit of formula (1) The second polycarbonate resin may include less than 40% by weight of the structural unit of formula (1). The weight ratio of the first polycarbonate resin to the second polycarbonate resin, the first polycarbonate resin/the second polycarbonate resin, may be in a range of from 55/45 to 99/1. The polycarbonate resin composition may have two or more glass transition temperatures.
    Type: Application
    Filed: June 10, 2019
    Publication date: August 19, 2021
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shingo NAMIKI, Yuuichi HIRAMI, Tomoaki KANEMASA, Taiki SHIMADA, Masato ANDO, Akira KOSUGE, Shigeki OHTA, Yuuichirou KUTSUNUGI, Asami KAKIUCHI
  • Publication number: 20210253505
    Abstract: Provided is a catalyst including a metal component including a first component that, is rhenium and one or more second components selected from the group consisting of silicon, gallium, germanium, and indium and a carrier on which the metal component is supported, the carrier including an oxide of a metal belonging to Group 4 of the periodic table. Also provided is an alcohol production method in which a carbonyl compound is treated using the above catalyst, it is possible to produce an alcohol by a hydrogenation reaction of a carbonyl compound with high selectivity and high efficiency while reducing 3ide reactions.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 19, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Takeshi MATSUO, Yumiko YOSHIKAWA, Takayuki AOSHIMA
  • Publication number: 20210257564
    Abstract: An iridium complex compound of formula (10): wherein Ir represents an iridium atom. m1 represents an integer of 1 or 2, n1 represents an integer of 1 or 2, and m1+n1=3. Ra1 at each occurrence represents an alkyl group or an aralkyl group. Rb1, Rc1, and R21 to R24 each independently represent a hydrogen atom or a substituent. and Ra1 to Rc1 and R21 to R24 may be further bonded to each other to form a ring, and wherein at least one of Rb1 and Rc1 is a substituted or unsubstituted aromatic or heteroaromatic group.
    Type: Application
    Filed: April 26, 2021
    Publication date: August 19, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kazuhiro NAGAYAMA, Oki IEMURA