Patents Assigned to Mitsui Chemicals, Inc.
  • Publication number: 20200030194
    Abstract: A dental adhesive curable composition containing a polymerizable monomer including a polymerizable monomer represented by formula (1?) and defined amounts of an acidic group-containing polymerizable monomer, a polymerization initiator containing a peroxide and a photopolymerization initiator, and a reductant containing a sulfinic acid compound and/or a salt thereof, and a filler: wherein the R groups, n and m are defined. A dental adhesive curable kit and a mobile tooth fixing material are also provided.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 30, 2020
    Applicants: Mitsui Chemicals, Inc., Sun Medical Co., Ltd.
    Inventors: Kazuhiko YOSHINAGA, Yoshimitsu TANABE, Shinsuke KINOSHITA, Takenori MITAMURA, Hiroki MURAI, Takeshi YOKOYAMA, Yoshihisa KAMIMOTO, Tatsuya ORI, Hirohisa SHIMIZU, Masami ARATA, Masuji TSUCHIKAWA, Sayaka MIYAMORI, Yoshiaki KATSURA
  • Publication number: 20200030485
    Abstract: Disclosed are: a composition for hard tissue repair with excellent penetrability to an adherend such as a cancellous bone and excellent adhesion to an adherend, which comprises a monomer (A), a polymer (B), a polymerization initiator (C) and a contrast medium (X) having a volume mean particle diameter of 3 ?m or more; and a kit for hard tissue repair having members in which the components of the monomer (A), the polymer (B), the polymerization initiator (C) and the contrast medium (X) contained in this composition for hard tissue repair are encased in three or more divided groups in an optional combination.
    Type: Application
    Filed: March 29, 2018
    Publication date: January 30, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Shinya AOKI, Kengo GOTO, Takashi MIURA, Tetsuya HAMADA, Ayako BANDO
  • Publication number: 20200030484
    Abstract: Disclosed are: a composition for hard tissue repair with excellent penetrability to an adherend such as a cancellous bone and excellent adhesion to an adherend, which comprises a monomer (A), a polymer powder (B) comprising 54% by mass or more of a polymer powder (b1) having a volume mean particle diameter of 27 to 80 ?m and a polymerization initiator (C); and a kit for hard tissue repair comprising members in which the components of the monomer (A), the polymer powder (B) and the polymerization initiator (C) contained in this composition for hard tissue repair are encased in three or more divided groups in an optional combination.
    Type: Application
    Filed: March 29, 2018
    Publication date: January 30, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kengo GOTO, Shinya AOKI, Takashi MIURA, Tetsuya HAMADA, Ayako BANDO
  • Publication number: 20200024435
    Abstract: The present invention relates to a thermoplastic elastomer composition comprising 10 to 80 parts by mass of polyolefin resin (A), 10 to 80 parts by mass of styrene-based thermoplastic elastomer (B), and 1 to 20 parts by mass of at least partially crosslinked rubber (C) (with the total amount of the components (A), (B) and (C) being 100 parts by mass), wherein the composition has a type D hardness (i.e., the instantaneous value) of 35 or more and 70 or less in accordance with JIS K6253, and relates to a molded thermoplastic elastomer product obtained by molding the composition.
    Type: Application
    Filed: March 9, 2018
    Publication date: January 23, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masatoshi SASAKI, Makoto YAEGASHI, Kakeru CHIGAMA, Remi KUSUMOTO
  • Publication number: 20200016874
    Abstract: A laminate of different kinds of halogen-containing rubbers (polymers) excellent in bonding strength. The laminate including the following layers (1) and (2) directly bonded to each other: layer (1): a layer of a composition including 100 parts by mass of a halogen-based rubber (A) (excluding a fluorine-based rubber), and 1 to 30 parts by mass of an inorganic compound (B) containing at least one element selected from Group 2 elements and Group 13 elements, and an oxygen atom; and layer (2): a layer of a halogen-containing polymer (C) (excluding the halogen-based rubber of the layer (1)).
    Type: Application
    Filed: February 28, 2018
    Publication date: January 16, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yoshiharu KIKUCHI, Kotaro ICHINO
  • Publication number: 20200020846
    Abstract: A piezoelectric substrate attachment structure including a press section pressed by contact, a piezoelectric substrate provided adjacent to the press section, and a base section provided adjacent to the piezoelectric substrate on an opposite side from the press section. The following relationship Equation (a) is satisfied: da/E?a<db/E?b??(a) wherein da is a thickness of the press section in a direction of adjacency to the piezoelectric substrate, E?a is a storage modulus of the press section from dynamic viscoelastic analysis, db is a thickness of the base section in the adjacency direction, and E?b is a storage modulus of the base section from dynamic viscoelastic analysis.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 16, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kazuhiro TANIMOTO, Masahiko MITSUZUKA, Mitsunobu YOSHIDA
  • Publication number: 20200010665
    Abstract: A polymerizable composition of the present invention includes a polymerization reactive compound (A), and an internal release agent (B) including a polyether-modified silicone compound (b1) represented by General Formula (1) and a polyether-modified silicone compound (b2) represented by General Formula (2), in which the polymerization reactive compound (A) is one or more compounds selected from a polyiso(thio) cyanate compound, a poly(thio) epoxy compound, a polyoxetanyl compound, a polythietanyl compound, an alkyne compound, a poly(thi)ol compound, a polyamine compound, an acid anhydride, or a polycarboxylic acid compound.
    Type: Application
    Filed: March 7, 2018
    Publication date: January 9, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Motoharu OIKI, Koju OKAZAKI
  • Publication number: 20200010588
    Abstract: The purpose of the present invention is to provide an electroconductive resin composition that has excellent electroconductivity and high mechanical strength. The electroconductive resin composition according to the present invention comprises 75-99 parts by mass of a thermoplastic resin (A), 1-25 parts by mass of a carbon material (B), and more than 1 part by mass but not more than 10 parts by mass, per 100 parts by mass of the total amount of the thermoplastic resin (A) and the carbon material (B), of a modified polyolefin wax (C), wherein the carbon material (B) is a granular carbon material having an average grain diameter of 500 nm or less or a fibrous carbon material having an average fiber length of 1000 ?m or less.
    Type: Application
    Filed: February 23, 2018
    Publication date: January 9, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hirotaka KANAYA, Kuniaki KAWABE, Yosuke TAKAHASHI, Koji MATSUNAGA
  • Publication number: 20200010653
    Abstract: This invention relates to a thermoplastic elastomer composition comprising 5 to 30 parts by mass of ethylene-?-olefin-non-conjugated polyene copolymer (A), 20 to 40 parts by mass of crystalline olefin-based resin (B) having a density of 0.90 g/cm3 or more and 0.92 g/cm3 or less, 20 to 40 parts by mass of high-density polyethylene (C) having a density of 0.94 g/cm3 or more and 0.97 g/cm3 or less, 5 to 12 parts by mass of ethylene-?-olefin copolymer (D) consisting of ethylene and ?-olefin having 3 to 12 carbon atoms, and 5 to 9 parts by mass of silicone compound (E) (with the total amount of (A), (B), (C), (D) and (E) being 100 parts by mass), and to an automotive glass run channel formed by the thermoplastic elastomer composition.
    Type: Application
    Filed: March 9, 2018
    Publication date: January 9, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tomohiro YAMAGUCHI, Masakazu JITSUKATA, Akihiro YAMAMOTO, Youhei HOUTANI, Takahiro YAMADA
  • Publication number: 20200002577
    Abstract: A laminate for a battery with a polypropylene adhesive layer and 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: Application
    Filed: March 1, 2018
    Publication date: January 2, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takahiro MAEDA, Yoshiyuki OGAWA
  • Patent number: 10519060
    Abstract: A process for producing a polymerizable composition for an optical material of the present invention includes a step of mixing (A) at least one kind of thiol compound having at least two mercapto groups, (B) a tin compound represented by general formula (1), and (C) at least one kind of isocyanate compound having at least two isocyanato groups, in which the polymerizable composition for an optical material obtained in the above step has a haze value of 0.05 or less.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: December 31, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kouji Suesugi, Naoki Shinohara, Koju Okazaki
  • Publication number: 20190388198
    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 23, 2018
    Publication date: December 26, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Maho OKUMURA, Ayumi KOISO
  • Publication number: 20190389726
    Abstract: A method of producing lithium difluorophosphate, the method including: a step of obtaining a first raw material mixture by mixing lithium hexafluorophosphate, at least one selected from the group consisting of an oxide of phosphorus (A) and a lithium salt of a phosphoric acid (B), and a hydrocarbon solvent having from 6 to 12 carbon atoms; a step of obtaining a second raw material mixture by removing at least a part of the hydrocarbon solvent contained in the obtained first raw material mixture; and a step of producing a crude product containing lithium difluorophosphate by reacting the second raw material mixture.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 26, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kenichi GOTOU, Makoto SUZUKI
  • Patent number: 10513575
    Abstract: A foam polyurethane material is a reaction-foaming-product of a composition containing a polyisocyanate (a), an isocyanate-terminated prepolymer (b) containing 0.3 mass % or more and less than 5 mass % of an isocyanate group, a polyol (c), and a catalyst.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: December 24, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Daisuke Hasegawa, Masakazu Kageoka, Goro Kuwamura, Satoshi Yamasaki
  • Publication number: 20190383821
    Abstract: Finding a protein of a minute amount present on a cell membrane to provide a method for producing an antibody against the protein. Producing an antibody using a protein identified by an identification method including: a labeling step of using a labeling agent comprising at least one selected from bis-iminobiotin compounds and bis-biotin compounds to obtain cells having a labeled protein; a degradation step of preparing a degradation product for an immobilization treatment, the degradation product containing the labeled protein; an immobilization step of immobilizing the labeled protein contained in the degradation product for an immobilization treatment on a stationary phase via a streptavidin mutant; a cleavage step of releasing an analysis sample from the stationary phase on which the labeled protein is immobilized; and an analysis step of analyzing the analysis sample to identify the labeled protein.
    Type: Application
    Filed: February 19, 2018
    Publication date: December 19, 2019
    Applicants: MITSUI CHEMICALS, INC., NATIONAL INSTITUTES OF BIOMEDICAL INNOVATION, HEALTH AND NUTRITION, SAVID THERAPEUTICS INC.
    Inventors: Tsuneji SUZUKI, Yoshiyuki TOTANI, Kosuke MANO, Shinichi BANBA, Haruhiko KAMADA, Taisuke NAKAYAMA, Hiroki AKIBA, Kouhei TSUMOTO, Tsuyoshi INOUE
  • Publication number: 20190382572
    Abstract: A foam body constituted of a 4-methyl-1-pentene-based polymer, in which one or more temperatures showing a maximum value of loss tangent (tan ?) of dynamic viscoelasticity, which is obtained by dynamic viscoelasticity measurement conducted under the conditions of a temperature increase rate of 4° C./min, a frequency of 1.59 Hz, and a distortion of 0.1%, exist in at least a range of 10° C. or higher and 100° C. or lower, and the maximum value of the loss tangent is 0.5 or more and 3.5 or less. Another aspect relates to a polyolefin-based foam sheet constituted of a 4-methyl-1-pentene-based polymer, in which the difference in Shore A hardness of at least one surface at different times is defined. A further aspect relates to a complex including a foam body constituted of a 4-methyl-1-pentene-based polymer and a member which is bonded to the foam body and is different from the foam body.
    Type: Application
    Filed: February 2, 2018
    Publication date: December 19, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Tomoya MATAYOSHI, Takayuki WATANABE, Michio ERIGUCHI, Satoshi NOMA
  • Publication number: 20190381759
    Abstract: Disclosed are a laminate having a laminated structure of five or more layers wherein each layer is a resin impregnated fiber reinforced composition layer in which fibers are oriented unidirectionally, the resin in the resin impregnated fiber reinforced composition layer is an olefin-based polymer having the melting point or the glass-transition temperature of 50 to 300° C., and the shape of the laminate can be easily controlled by melt press molding; and a tape winding pipe excellent in balance between bending rigidity and compressive rigidity.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 19, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Takeharu ISAKI, Kiyoshi UZAWA, Junichi ISHIKAWA, Kazuaki KIKUCHI, Shigeki IWATA
  • Publication number: 20190382573
    Abstract: A molded product formed of a plurality of portions containing 4-methyl-1-pentene polymers in contact with each other and to provide a method for producing the molded product. A molded product according to the present invention includes a composition containing a particular 4-methyl-1-pentene (co)polymer (A) having a melting point (Tm) measured by DSC of within the range of 200 to 250° C. and a particular 4-methyl-1-pentene copolymer (B) having no observed melting point (Tm) or having a melting point (Tm) of within the range of 100 to 199° C., the melting point (Tm) being measured by DSC, wherein a content of the (co)polymer (A) is 60 to 95 parts by mass of based on a total of 100 parts by mass of the (co)polymer (A) and the copolymer (B), and a portion (2) that contains the 4-methyl-1-pentene (co)polymer (A) and is formed in contact with the portion (1).
    Type: Application
    Filed: February 7, 2018
    Publication date: December 19, 2019
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yusuke NAKAYAMA, Toyoaki SASAKI, Kenkichi YOSHIDA, Kazutoshi FUJIHARA
  • Publication number: 20190374441
    Abstract: Provided are adhesive materials which exhibit high adhesive strength, and compounds which can be blended with the adhesive materials. The compounds are represented by the general formula: X(Y1)n1, in which the core (X) and the terminal group (Y1) are bonded to each other, n1 represents the number of terminal groups (Y1) bonded to the core (X), and n1 is equal to the valence of the core (X); the core (X) is a C1-200 polyvalent organic group having a valence of not less than 3 containing an oxygen atom or a nitrogen atom in which an atom bonded to the terminal group (Y1) is the oxygen atom or the nitrogen atom; and the terminal group (Y1) is further defined.
    Type: Application
    Filed: March 29, 2018
    Publication date: December 12, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Yoko KOSUGI, Akiko MATSUMOTO, Kazuhiko YOSHINAGA
  • Patent number: D870293
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 17, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Yukita, Haruka Sugita, Akira Hasegawa, Hideyuki Nagai, Yasufumi Tsuchiya