Patents Assigned to Mitsui Chemicals, Inc.
  • Publication number: 20220208413
    Abstract: The present invention addresses the problem of providing an electroconductive resin composition which combines high electrical conductivity with excellent processability. The electroconductive resin composition comprises a thermoplastic resin (A), carbon nanotubes (B) having an outer diameter of 100 nm or smaller, and an aromatic-monomer-modified polyolefin wax (C) obtained by modifying a polyolefin wax with an aromatic monomer. The composition comprises the thermoplastic resin (A), the carbon nanotubes (B), and the aromatic-monomer-modified polyolefin wax (C) in amounts of 74.9-99.4 parts by mass, 0.5-25 parts by mass, and 0.1-10 parts by mass, respectively, with respect to 100 parts by mass of the sum of the thermoplastic resin (A), the carbon nanotubes (B), and the aromatic-monomer-modified polyolefin wax (C).
    Type: Application
    Filed: April 23, 2020
    Publication date: June 30, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hirotaka KANAYA, Yosuke TAKAHASHI, Koji MATSUNAGA, Kuniaki KAWABE
  • Publication number: 20220204679
    Abstract: The thiol-containing composition for an optical material of the present invention includes a compound (A) represented by General Formula (a), and a compound (B) composed of at least one selected from a compound (b2-1) represented by General Formula (b2-1), a compound (b3-1) represented by General Formula (b3-1), a compound (b3-2) represented by General Formula (b3-2), and a compound (b4-2) represented by General Formula (b4-2), in which, in high-performance liquid chromatography measurement, the total peak area ratio of the compound included in the compound (B) is 0.1% to 60.0% with respect to the peak area 100 of the compound (A).
    Type: Application
    Filed: April 24, 2020
    Publication date: June 30, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takeshi NISHIMURA, Masayuki FURUYA, Shigetoshi KUMA
  • Patent number: 11371896
    Abstract: A sensor module includes a holding member formed of an elastic body, a pressure bearing face provided at the holding member and configured to bear pressure, an adjoining face provided at the holding member so as to adjoin the pressure bearing face and configured to undergo deformation in accordance with the pressure borne by the pressure bearing face, and an elongate piezoelectric substrate arranged on the adjoining face.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 28, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Katsuki Onishi, Kazuhiro Tanimoto, Mitsunobu Yoshida
  • Patent number: 11375632
    Abstract: A dissimilar material joint including a joined portion between a resin rib and a metal base, in which the metal base forms a protrusion protruding inside of the resin rib on at least a part of the joined portion.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: June 28, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takahiro Tominaga, Kazuki Kimura, Masaki Misumi, Nobuyoshi Shinbori
  • Publication number: 20220195165
    Abstract: An olefin-based polymer composition comprising: a component derived from a copolymer (A) (100 parts by mass) comprising a constitutional unit derived from ethylene, a constitutional unit derived from an ?-olefin having 3 to 20 carbon atoms, and a constitutional unit derived from non-conjugated polyene and having (a-1) the Mooney viscosity of 50 to 200; one or more types of crystalline propylene-based polymers (B) (10 to 50 parts by mass in total) that satisfy the requirements (b-1) and (b-2); one or more types of crystalline propylene-based polymers (C) (5 to 30 parts by mass in total) that satisfy the requirements (c-1) and (c-2); and low-molecular-weight polyolefin (D) (4 to 18 parts by mass) that satisfies the requirement (d-1), and at least a part of the component derived from the copolymer (A) is crosslinked by a phenol resin-based crosslinking agent (E); and a formed product obtained from the olefin-based polymer composition.
    Type: Application
    Filed: February 17, 2020
    Publication date: June 23, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yusuke YODA, Masakazu JITSUKATA
  • Publication number: 20220200081
    Abstract: A cooling unit includes a structure in which a box body made of resin and a plate lid made of metal are bonded together, in which at least one of an upper surface and a lower surface of the box body has an opening and the plate lid is bonded with the box body so as to block the opening, a wall surface of the box body is provided with a refrigerant inlet and a refrigerant outlet for allowing a refrigerant to flow in the box body, a flow path-forming rib is provided in the box body, and a part or an entirety of the box body is formed of a fiber-reinforced resin and/or a resin containing an inorganic particle filler.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 23, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tomoki TORII, Kyohei NOMOTO
  • Publication number: 20220197063
    Abstract: In an optical material, a transmittance curve satisfies the following characteristics (1) and (2) and a hue in the CIE 1976 (L*, a*, b*) color space satisfies the following characteristic (3), (1) the transmittance curve has a maximum value of a transmittance at a wavelength of from 400 nm to 450 nm or from 520 nm to 570 nm, and a largest value of the transmittance at the wavelength of from 400 nm to 450 nm and a transmittance at from 520 nm to 570 nm are 50% or more, (2) the transmittance curve has a minimum value of a transmittance at a wavelength of from 470 nm to 500 nm, and the minimum value is 40% or less, and (3) in the hue in the CIE 1976 (L*, a*, b*) color space, a* is from 2.5 to 5.5 and b* is from 5 to 25.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 23, 2022
    Applicants: MITSUI CHEMICALS, INC., ITOH OPTICAL INDUSTRIAL CO., LTD.
    Inventors: Yusuke MATSUI, Kouji SUESUGI, Shinsuke ITO, Hirofumi ODA
  • Patent number: 11367827
    Abstract: A piezoelectric substrate, comprising: a conductor cord that has a core material and a conductor disposed around the core material; and an elongated piezoelectric body that is disposed around the conductor cord in a spiral manner, unidirectionally along an axial direction of the conductor cord, wherein: the piezoelectric body comprises an optically active helical chiral polymer, a lengthwise direction of the piezoelectric body and a main orientation direction of the helical chiral polymer in the piezoelectric body are substantially parallel to each other, the piezoelectric body has an orientation degree F. of from 0.5 to less than 1.0, and the conductor cord satisfies Formula (b): ?Dmax<tpmin, wherein ?Dmax is a maximum value of a difference in height between a division A that is selected from plural divisions and a division B that is adjacent to the division A, and tpmin is a minimum thickness of the piezoelectric body.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: June 21, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Mitsunobu Yoshida, Katsuki Onishi, Kazuhiro Tanimoto
  • Publication number: 20220186133
    Abstract: A lubricating oil composition for industrial gears, including 10 to 90% by mass of a lubricant base oil (A) having a kinematic viscosity at 100° C. of 1 to 100 mm2/s, a viscosity index of 100 or more, and a pour point of 0° C. or lower, and 90 to 10% by mass of a liquid random copolymer (B) of ethylene and ?-olefin, the liquid random copolymer (B) being prepared by means of a specific catalyst, wherein the total amount of (A) and (B) is 100% by mass, the lubricating oil composition for industrial gears having a kinematic viscosity at 40° C. of 100 to 10,000 mm2/s.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 16, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shota ABE
  • Publication number: 20220186134
    Abstract: A lubricating oil composition for internal combustion engines, including a lubricant base oil and a liquid random copolymer of ethylene and an ?-olefin, the liquid random copolymer being produced using a specific catalyst, wherein the lubricating oil composition has a kinematic viscosity at 100° C. of 12.5 mm2/s or more, but less than 26.1 mm2/s, and wherein the lubricant base oil consists of a mineral oil having a kinematic viscosity at 100° C. of 2 to 10 mm2/s, a viscosity index of 95 or more and a pour point of ?10° C. or lower, and/or a synthetic oil having a kinematic viscosity at 100° C. of 1 to 10 mm2/s, a viscosity index of 120 or more and a pour point of ?30° C. or lower.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 16, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shota ABE
  • Publication number: 20220186132
    Abstract: A grease composition including 10 to 98% by mass of a lubricant base oil (A) having a kinematic viscosity at 100° C. of 1 to 14 mm2/s, a viscosity index of 100 or more, and a pour point of 0° C. or lower, 89 to 1% by mass of a liquid random copolymer (B) of ethylene and ?-olefin produced by using a specific catalyst, and 1 to 30% by mass of a thickener (C) (note that the sum total of (A) to (C) is 100% by mass), wherein the lubricant base oil (A) and the copolymer (B) are mixed in such a ratio that the mixture of the lubricant base oil (A) and the ethylene-?-olefin copolymer (B) has a kinematic viscosity at 100° C. of 1 to 500 mm2/s and a viscosity index of 120 or more.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 16, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shota ABE
  • Patent number: 11358928
    Abstract: The method for producing pentamethylene diisocyanate includes a reaction step, in which carbonyl chloride is allowed to react with pentamethylenediamine to produce a reaction mixture containing pentamethylene diisocyanate and a tar component containing a chlorine-containing component; a heating step, in which the reaction mixture is heated; and a purification step, in which the reaction mixture after the heating step is purified to separate the pentamethylene diisocyanate from the tar component, wherein in the heating step, the reaction mixture is heated without removing the tar component from the reaction mixture.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: June 14, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Koji Takamatsu, Masashi Shimamoto, Tomohiro Kano
  • Patent number: 11358354
    Abstract: A process for producing a plastic lens includes a step of stirring and mixing a solution including a polymerization reactive compound in a preparation tank; a step of transferring the polymerizable composition obtained in the step from the preparation tank to a lens casting mold; a step of curing the polymerizable composition; and a step of obtaining a plastic lens molded product by separating the obtained resin from the lens casting mold. The step of transferring the polymerizable composition includes a step of re-mixing the polymerizable composition discharged from the preparation tank and injecting the polymerizable composition into the lens casting mold.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: June 14, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shinsuke Ito, Kouji Suesugi, Masayuki Furuya, Takeshi Nishimura, Mamoru Tanaka
  • Publication number: 20220177798
    Abstract: A lubricating oil composition for hydraulic oils including 10 to 99% by mass of a lubricant base oil (A) with a kinematic viscosity at 100° C. of 1 to 14 mm2/s, a viscosity index of 100 or more, and a pour point of 0° C. or lower, and 90 to 1% by mass of a liquid random copolymer (B) of ethylene and ?-olefin prepared using a specific catalyst, wherein the total amount of (A) and (B) is 100% by mass, and having a kinematic viscosity at 100° C. of 10 to 300 mm2/s.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 9, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shota ABE
  • Publication number: 20220169948
    Abstract: A lubricating oil composition for compressor oils, including 10 to 99% by mass of a lubricant base oil (A) having a kinematic viscosity at 100° C. of 1 to 14 mm2/s, a viscosity index of 100 or more, and a pour point of 0° C. or lower, and 90 to 1% by mass of a liquid random copolymer ethylene-?-olefin copolymer (B) of ethylene and ?-olefin, the liquid random copolymer ethylene-?-olefin copolymer (B) being prepared by means of a specific catalyst (where the total amount of (A) and (B) is 100% by mass), the lubricating oil composition for compressor oils having a kinematic viscosity at 40° C. of 10 to 300 mm2/s.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 2, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shota ABE
  • Publication number: 20220173463
    Abstract: A lithium-ion battery stack that is a layered body includes: a plurality of lithium-ion batteries layered directly or with other layers therebetween; and one or more self-extinguishing layers.
    Type: Application
    Filed: March 26, 2020
    Publication date: June 2, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shinji YAMAMOTO, Yuri SUGIHARA
  • Publication number: 20220169938
    Abstract: The present invention is a lubrication oil composition which is characterized by containing (A) a liquid random copolymer of ethylene and an ?-olefin, which is produced by a specific method and (F) a sulfur-containing compound wherein at least one hydrocarbon group that is adjacent to a sulfur atom is a secondary or tertiary hydrocarbon group, while containing, as an optional component, (G) a polymer of an ?-olefin having 3 to 6 carbon atoms, and which is also characterized in that: the kinematic viscosity at 40° C. is 450 to 51,000 mm2/s; the content of sulfur is 0.1 to 5 parts by weight; and the content of the component (G) is 0 to 15 parts by weight. This lubrication oil composition is especially suitable for gear oils and the like.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 2, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shota ABE
  • Publication number: 20220169942
    Abstract: A lubricating oil composition for internal combustion engines, including a lubricant base oil and 3% by mass or more, but less than 40% by mass of a liquid random copolymer of ethylene and an ?-olefin, the liquid random copolymer being produced using a specific catalyst, wherein the lubricating oil composition has a kinematic viscosity at 100° C. of 6.9 mm2/s or more, but less than 12.5 mm2/s, and wherein the lubricant base oil consists of a mineral oil having a kinematic viscosity at 100° C. of 2 to 7 mm2/s, a viscosity index of 105 or more and a pour point of ?10° C. or lower, and/or a synthetic oil having a kinematic viscosity at 100° C. of 1 to 7 mm2/s, a viscosity index of 120 or more and a pour point of ?30° C. or lower.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 2, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shota ABE
  • Publication number: 20220169939
    Abstract: The present invention provides a lubricating oil composition comprising a polymer for improving viscosity, the composition suppressing viscosity increase in low temperature and having an excellent low-temperature property, and having low viscosity decrease caused by shearing. The present invention is a lubricating oil composition containing from 30 to 90% by weight of a liquid random copolymer (A) of ethylene and ?-olefin produced by a specific method, and 10 to 70% by weight of a lubricating oil base consisting of one or more components selected from specific synthetic oil (B) or mineral oil (C) (note that the sum total of the components (A), (B) and (C) is 100% by weight).
    Type: Application
    Filed: March 26, 2019
    Publication date: June 2, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shota ABE
  • Publication number: 20220168989
    Abstract: Disclosed are: a fiber-reinforced resin article which includes, on at least one face of a unidirectional fiber-reinforced resin sheet (UDS), a plurality of chopped sheets (CS) of a unidirectional fiber-reinforced resin sheet which is the same as or different from the abovementioned unidirectional fiber-reinforced resin sheet (UDS), wherein the ratio of the chopped sheets (CS), with respect to 100 parts by mass of the unidirectional fiber-reinforced resin sheet (UDS), is at least 40 parts by mass and no more than 100 parts by mass; a method for manufacturing a fiber-reinforced resin article, said method having a step for positioning a plurality of the chopped sheets (CS), and a step for heating and pressurizing; and a laminate including the fiber-reinforced resin article and a foam layer.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 2, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kazuaki KIKUCHI, Takeharu ISAKI