Patents Assigned to Mitsui Chemicals, Inc.
  • Publication number: 20190248991
    Abstract: The pipe articles with excellent stress crack resistance can be achieved by providing ethylene copolymer composition comprises ethylene and a C6-C10 ?-olefin comonomer; the ethylene copolymer having a total density of 0.945-0.980 g/cm3 and a MFR5 of 0.10-0.50 g/10 min; and the ethylene copolymer having a comonomer content of 1-5% wt. The ethylene copolymer has Mx/My in the range of not less than 14.0; gpcBR in the range of from 0.20 to 0.80; and strain hardening modulus <Gp> in the range of not less than 53.4.
    Type: Application
    Filed: November 15, 2016
    Publication date: August 15, 2019
    Applicants: SCG Chemicals Co., Ltd., Mitsui Chemicals, Inc.
    Inventors: Natthaporn SUCHAO-IN, Kenji IWAMASA, Eiji SHIBA, Warachad KLOMKAMOL, Patcharin SAMPHAWAMONTRI, Watcharee CHEEVASRIRUNGRUANG, Shinichi KOJOH, Yasunori KANEKO, Takashi FUKAWA, Thipphaya PATHAWEEISARIYAKUL
  • Patent number: 10377889
    Abstract: A thermoplastic elastomer composition obtained by dynamically crosslinking an ethylene/?-olefin/non-conjugated polymer copolymer (A), a polyolefin resin (B), a softener (C) in an amount of 1 to 200 parts by mass per 100 parts by mass of the total of the copolymer (A) and the resin (B), and a crosslinking agent (D) by the use of a batch mixer under the conditions satisfying the requirements (1) to (4).
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: August 13, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hayato Kurita, Kazuyoshi Kaneko, Masahiro Enna, Tatsuya Enomoto, Hideki Mochizuki
  • Patent number: 10377845
    Abstract: A graft-modified propylene.?-olefin copolymer (A) is obtained by graft-reacting a polar monomer onto a propylene.?-olefin copolymer (a) including 50 to 90 mol % of propylene-derived structural units (C3) and 10 to 50 mol % of C4-8 ?-olefin-derived structural units (C?) (wherein the total of the structural units C3 and C? is 100 mol %), and satisfies the following requirements (i) to (iv) at the same time: (i) the amount of the polar monomer grafted is 0.4 to 1.5 wt %, (ii) the content of the polar monomer is not more than 1000 ppm, (iii) the content of a gel insoluble in xylene at 140° C. is not more than 2.5 wt %, and (iv) the content of a volatile hydrocarbon compound is not more than 10 ppm.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: August 13, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Koya Yoshimoto, Hidetake Nakano, Tetsuya Nakamura
  • Patent number: 10370465
    Abstract: Propylene polymers and propylene resin compositions containing the polymers are used as molded articles used under stress for a long period such as automotive parts, housing parts, home appliance parts and electric power tool parts. Stress-resistant molded articles of the invention are obtained from these materials. A propylene homopolymer (A) satisfies the following requirements (1) to (3), and a polypropylene resin composition contains the propylene homopolymer (A). (1) The ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn) according to GPC is in the range of 1.2 to 3.5. (2) Mn is in the range of 35,000 to 400,000. (3) The content of components soluble in o-dichlorobenzene at 90° C. is not more than 4 wt %.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: August 6, 2019
    Assignees: PRIME POLYMER CO., LTD., MITSUI CHEMICALS, INC.
    Inventors: Keita Itakura, Toshiyuki Ishii, Rikuo Onishi, Satoshi Hashizume
  • Patent number: 10359649
    Abstract: In some embodiments, an electronic eyewear device is provided. The electronic eyewear device may comprise a temple, a touch sensor, a plurality of electronic components, and an enclosure partially enclosing the touch sensor and the plurality of electronic components. The enclosure may have a first opening that exposes a surface of the touch sensor. The exposed surface of the touch sensor may define a top surface of the plurality of electronics components. The enclosure may be attached to the temple.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: July 23, 2019
    Assignee: Mitsui Chemical, Inc.
    Inventor: Charles Willey
  • Patent number: 10359679
    Abstract: Devices and methods related generally to electrochromic materials and their use. In some embodiments, the electrochromic materials are for use on an optical substrate, such as a lens, a semi-finished lens blank, and the like. Some embodiments include an electrochromic stack including nanostructured materials. Some embodiments include an electrochromic stack including nanostructured electrochromic materials. Some embodiments include one or more ion-conducting layers. Methods of making electrochromic stacks having nanostructured materials and/or ion-conducting layers are also discussed.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 23, 2019
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Anita Trajkovska-Broach, Amitava Gupta, William Kokonaski, Ronald D. Blum
  • Publication number: 20190218853
    Abstract: The elastically deformable seal member has hollow tube (6) and porous body (7) inserted into the interior of tube (6). The interior of tube (6) is not completely filled by porous body (7), and air-holding space (8) is provided between a portion of the inner wall of tube (6) and a portion of the outer surface of porous body (7). Porous body (7) comprises a material having a water absorption coefficient in the range of 10% to 3000% in an uncompressed state. Porous body (7) is disposed such that the volume of porous body (7) occupies 2.5% or more of the internal volume of tube (6).
    Type: Application
    Filed: May 16, 2017
    Publication date: July 18, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Fumito TAKEUCHI, Kengo GOTO
  • Patent number: 10351673
    Abstract: Provided are a block polyamide acid imide having an appropriate solubility in aqueous alkaline solutions, and block polyimides that are obtained using same and have high transparency and a low coefficient of linear thermal expansion (low CTE). The block polyimide comprises blocks configured from repeating structural units represented by defined formula (1A) and blocks configured from repeating structural units represented by defined formula (1B).
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: July 16, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kenichi Fukukawa, Masaki Okazaki, Yoshihiro Sakata, Tatsuhiro Urakami, Atsushi Okubo
  • Publication number: 20190211193
    Abstract: The present invention is a crosslinked body obtained by crosslinking a composition which comprises 100 parts by mass of (A) an ethylene/?-olefin/non-conjugated polyene copolymer having one or more peaks of tan ? in the temperature range of ?50 to ?30° C., the tan ? being determined by dynamic viscoelasticity measurement, 50 to 500 parts by mass of (B) an olefin-based copolymer having one or more peaks of tan ? in the temperature range of 0 to 40° C., the tan ? being determined by dynamic viscoelasticity measurement, 5 to 300 parts by mass of (C) a softener, 10 to 300 parts by mass of (D) a reinforcing filler and 0.1 to 10 parts by mass of (E) a vulcanizing agent, and which has a content ratio by mass ((C)/(D)) of (C) the softener to (D) the reinforcing filler of 0.3 to 1.5, the crosslinked body having a durometer hardness (value immediately after measurement) of 50 to 8.
    Type: Application
    Filed: March 1, 2016
    Publication date: July 11, 2019
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Fumito TAKEUCHI, Kengo GOTO
  • Publication number: 20190211258
    Abstract: Provided is a photochromic lens in which a transmittance at 23° C. after irradiation using a xenon lamp at an illuminance of 50,000 lux for 15 minutes satisfies the following conditions. (1) A transmittance at 550 nm is 25% or less. (2) A transmittance a at 550 nm is larger than a minimum transmittance b between 575 nm and 600 nm, and a difference between the transmittance a and the transmittance b is 5% or more. (3) There are one or more points of inflection in a transmittance curve from 550 nm to 600 nm.
    Type: Application
    Filed: September 28, 2017
    Publication date: July 11, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Nobuo Kawato, Masaru Kawaguchi, Shinichiro Kadowaki, Yuuki Kasori
  • Publication number: 20190214542
    Abstract: A piezoelectric substrate attachment structure including a cable-shaped piezoelectric substrate, a press section provided adjacent to the piezoelectric substrate and pressed from an opposite side from the piezoelectric substrate, and a base section provided adjacent to the piezoelectric substrate on an opposite side from the press section. A ratio Eb/Ea of a Young's modulus Eb of the base section to a Young's modulus Ea of the press section being 10?1 or lower.
    Type: Application
    Filed: September 22, 2017
    Publication date: July 11, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Mitsunobu YOSHIDA, Kazuhiro TANIMOTO, Masahiko MITSUZUKA
  • Patent number: 10344116
    Abstract: Provided is a polymerizable composition for an optical material including (A) a bifunctional amine having two secondary amino groups, (B) a bifunctional thiol having two mercapto groups, and (C) a bifunctional isocyanate having two isocyanato groups, in which the ratio ((a+b)/c) of the total molar number (a+b) of the molar number a of amino groups in the amine (A) and the molar number b of mercapto groups in the thiol (B) with respect to the molar number c of isocyanato groups in the isocyanate (C) is in the range of 0.85 to 1.15, and the ratio (a/c) of the molar number a of amino groups in the amine (A) with respect to the molar number c of isocyanato groups in the isocyanate (C) is in the range of 0.10 to 0.60.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: July 9, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventor: Nobuo Kawato
  • Publication number: 20190202184
    Abstract: It is a main object of the present invention to impart higher antifogging properties to the hydrophilic material formed of a crosslinked resin, having a surface enriched with hydrophilic groups, previously proposed by the inventors. The laminate of the present invention includes a water absorbing layer (B) and a hydrophilic layer (A) provided in this order on a substrate, wherein the hydrophilic layer (A) is formed of a crosslinked resin having an anionic, cationic or nonionic hydrophilic group, and has a gradient of hydrophilic groups (intensity of hydrophilic group on surface of the hydrophilic layer (A)/intensity of hydrophilic group at ½ of thickness of the hydrophilic layer (A)) of not less than 1.1; and the water absorbing layer (B) is formed of a crosslinked resin having a water absorption rate per unit mass (g) of in the range of 5 to 500 wt %.
    Type: Application
    Filed: August 25, 2017
    Publication date: July 4, 2019
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Takayuki HANAWA, Koju OKAZAKI
  • Patent number: 10336869
    Abstract: Disclosed are: a carbon fiber-reinforced resin composition excellent in properties such as strength and elastic modulus, comprising 100 parts by mass of a polymer alloy (A) which comprises: 25 to 95% by mass of one or more propylene-based polymers (p) selected from a propylene-ethylene block copolymer, a propylene homopolymer and a ropylene-ethylene random copolymer having an ethylene content of 5% by mass or less, 1 to 60% by mass of an acid-modified polyolefin resin (m), 0 to 40% by mass of an ethylene-based polymer (e) and 0 to 50% by mass of a polyamide (n) wherein the total of the component (p), the component (m), the component (e) and the component (n) is 100% by mass, and 1 to 200 parts by mass of a carbon fiber (B).
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: July 2, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Daisuke Fujita, Shuji Matsumura, Kenji Maki, Atsushi Takeishi
  • Patent number: 10336838
    Abstract: [Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and ?-olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and ?-olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, [in the formula [I], R1, R3 and R5 to R16 are each independently a hydrogen atom, a hydrocarbon group or the like; R2 is a hydrocarbon group or the like; R4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 2, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Munehito Funaya, Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka, Shinya Tanaka
  • Patent number: 10336837
    Abstract: [Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and ?-olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and ?-olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, [in the formula [I], R1, R3 and R5 to R16 are each independently a hydrogen atom, a hydrocarbon group or the like; R2 is a hydrocarbon group or the like; R4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 2, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Munehito Funaya, Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka, Shinya Tanaka
  • Patent number: 10329366
    Abstract: The invention has an object of providing ethylene/?-olefin copolymers having high randomness and a small number of double bonds in the copolymers. The ethylene/?-olefin copolymers of the invention are obtained by copolymerizing ethylene and an ?-olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst which includes a bridged metallocene compound (A) represented by the formula [I], and at least one compound (B) selected from organometallic compounds (B-1), organoaluminum oxy compounds (B-2) and compounds (B-3) capable of reacting with the bridged metallocene compound (A) to form an ion pair, and have a specific weight average molecular weight, a specific molecular weight distribution, a specific glass transition point and a specific value B.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: June 25, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Katsuyoshi Harada, Koji Endo, Tomoaki Mizukawa, Sadahiko Matsuura
  • Publication number: 20190191598
    Abstract: An electronic device housing of the present invention is a housing for internally accommodating an electronic device and is provided with a metal bottom plate, and metal side plates folded and integrally connected to the bottom plate, in which, in a metal member (M) formed of at least the bottom plate and the side plate, a thermoplastic resin member is joined to a portion of the surface of the plate-shaped metal member (M), the metal member (M) is reinforced by a thermoplastic resin member, and the thermoplastic resin member is joined to both surfaces of the plate-shaped metal member (M).
    Type: Application
    Filed: August 23, 2017
    Publication date: June 20, 2019
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shinya NAITO, Nobuyoshi SHIMBORI
  • Publication number: 20190187560
    Abstract: A composition for forming a metal-containing film, the composition including: a compound (A) which is at least one selected from the group consisting of: a compound (a1) containing a cationic functional group containing at least one of a primary nitrogen atom or a secondary nitrogen atom, and a compound (a2) which is a compound other than the compound (a1) and which contains a nitrogen atom; and a compound (B) which is at least one selected from the group consisting of: a compound (b1) containing a carboxy group and at least one of a germanium atom, a tin atom, a selenium atom or a zirconium atom, and an ester of the compound (b1).
    Type: Application
    Filed: May 19, 2017
    Publication date: June 20, 2019
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yasuhisa KAYABA, Shoko ONO, Hirofumi TANAKA
  • Patent number: D854607
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: July 23, 2019
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Akihiro Muramatsu, Hortense Desodt, Thomas Overthun, Martin Kay, Thomas Brisebras, Chris Hill