Patents Assigned to Mitsui Chemicals, Inc.
  • Publication number: 20240244978
    Abstract: Provided is a polymer piezoelectric film element which generates electricity at a high sensitivity upon vibrations across a broad frequency band, including those caused by the motion of humans or animals or faint contact stress, and those caused by automobiles and so on, which can be made into a thin film and at a high yield, and which can be used as a stably driving power supply device, a tactile sensor, or a vital sensor. The present invention pertains to: a polymer piezoelectric film element characterized in that an electrode sheet is formed on both surfaces of a polymer piezoelectric film, and by having a structure which has bumps and dips or a wave-shaped structure which has peaks and valleys in an axis perpendicular to said surfaces; and a power storage device, a sensor, or a vital sensor.
    Type: Application
    Filed: April 18, 2022
    Publication date: July 18, 2024
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Jun OKABE, Tadahiro SUNAGA, Shizuo TOKITO
  • Patent number: 12036778
    Abstract: The present invention has an object of providing a laminate which is composed of a layer containing a melt shapable fluororesin and a layer of an ethylene-?-olefin-nonconjugated polyene copolymer composition, and is excellent in adhesiveness, and the present invention relates to a laminate including: a layer including an ethylene-?-olefin-nonconjugated polyene copolymer composition, and a layer comprising a melt shapable fluororesin; wherein the ethylene-?-olefin-nonconjugated polyene copolymer composition includes 100 parts by mass of an ethylene-?-olefin-nonconjugated polyene copolymer (A), 1.0 to 6.0 parts by mass of at least one compound (C) selected from the group consisting of 1,8-diazabicyclo(5.4.0)undecene-7 salts, 1,5-diazabicyclo(4.3.0)nonene-5 salts, 1,8-diazabicyclo(5.4.0)undecene-7 and 1,5-diazabicyclo(4.3.0)nonene-5, and 3 to 20 parts by mass of magnesium oxide.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: July 16, 2024
    Assignees: Mitsui Chemicals, Inc., Daikin Industries, Ltd.
    Inventors: Yoshiharu Kikuchi, Kotaro Ichino, Kozue Osawa, Yuki Kuwajima
  • Publication number: 20240228740
    Abstract: Provided is a polyamide resin composition that, at high temperatures, suppresses reductions in tensile strength due to the addition of a copper-based heat-resistance stabilizer, and maintains a tensile strength over longer periods of time in a hot environment. The composition includes a polyamide resin and a copper-based heat-resistance stabilizer. The polyamide resin includes: a component unit (a) derived from dicarboxylic acid which is derived from an aromatic dicarboxylic acid or an alicyclic dicarboxylic acid; and greater than or equal to 10 mol % and less than 50 mol % of a component unit (b2), which is derived from 1,3-bis(aminomethyl)cyclohexane, with respect to the total number of moles of a component unit (b) derived from diamine. The content of copper included in the copper-based heat-resistance stabilizer is 0.001 parts by mass to 0.050 parts by mass, inclusive, with respect to 100 total parts by mass of the polyamide resin.
    Type: Application
    Filed: March 16, 2022
    Publication date: July 11, 2024
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Haruka DOI, Wataru MAKIGUCHI, Kohei NISHINO, Isao WASHIO
  • Publication number: 20240228759
    Abstract: A thermoplastic elastomer composition, including 100 parts by mass of an ethylene??-olefin non-conjugated polyene copolymer (A), 20 to 5,000 parts by mass of a soft propylene-based copolymer (B), a melting point (TmB) is not observed or is lower than 115° C., 10 to 500 parts by mass of a crystalline polyolefin (C), a melting point (TmC) is 115° C. or higher, 0 to 70 parts by mass of a softener (D), and 0.01 to 10 parts by mass of a crosslinking agent (E), the soft propylene-based copolymer (B) further satisfies the following requirements (b-1) and (b-2): (b-1) 90 to 50 mol % of a constituent unit derived from propylene, 0 to 30 mol % of a constituent unit derived from 1-butene, and 5 to 30 mol % of a constituent unit derived from ethylene, are contained; (b-2) a molecular weight distribution (Mw/Mn) obtained by gel permeation chromatography (GPC) is in a range of 1.0 to 3.5.
    Type: Application
    Filed: June 23, 2022
    Publication date: July 11, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Nana TAKAYAMA, Hidetake NAKANO, Takeshi KANEHARA, Yasuhiro KITAHARA, Remi KUSUMOTO
  • Patent number: 12031023
    Abstract: Resin composition comprises 35 to 59.9 parts by mass of a propylene polymer (A) satisfying below; 25 to 40 parts by mass of a soft propylene copolymer (B); 0.1 to 10 parts by mass of a polyolefin (C) containing a structural unit derived from an unsaturated carboxylic acid and/or a derivative thereof; and 15 to 30 parts by mass of an ethylene polymer (D) (provided that the total of (A), (B), (C), and (D) is 100 parts by mass), wherein an MFR measured at 230° C. and a load of 2.16 kg according to ASTM D-1238 is 7 g/10 min or more and 25 g/10 min or less, with each component satisfying certain requirements.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: July 9, 2024
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Akihiko Iwashita, Yoshiyuki Ogawa, Youhei Houtani
  • Publication number: 20240216899
    Abstract: Provided is a method for manufacturing a modified aluminosilicate in which a hydroquinone is highly selectively manufactured by a reaction between a phenol and hydrogen peroxide under industrially advantageous conditions, wherein the manufacturing method includes: a second step for treating an aluminosilicate with an acid; a third step for performing primary calcination of the treatment product obtained in the second step; and a fourth step in which the primary calcined product obtained in the third step and liquid containing one or more elements selected from the group consisting of elements in Group 4 and Group 5 of the Periodic Table are brought into contact with each other, and drying and secondary calcination then performed.
    Type: Application
    Filed: April 22, 2022
    Publication date: July 4, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Nobuhiko HORIUCHI, Takuma MATSUSHIMA, Satoshi AKIYAMA, Akihiro OKABE, Itsuki IMOTO, Keita NAKANISHI, Susumu SAITO, Yoshihiro KUBOTA, Satoshi INAGAKI
  • Publication number: 20240219422
    Abstract: This anisotropic electroconductive sheet includes: an insulating layer having a first surface, a second surface, and a plurality of through-holes penetrating between the two surfaces; a plurality of electroconductive layers disposed on the inner wall surfaces of each of the plurality of through-holes; and a plurality of electroconductive fillers filled into cavities surrounded by the electroconductive layers inside each of the plurality of through-holes. Each of the plurality of electroconductive fillers contains a crosslinked product of an electroconductive elastomer composition containing electroconductive particles and an elastomer.
    Type: Application
    Filed: June 30, 2022
    Publication date: July 4, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Katsunori NISHIURA, Daisuke YAMADA, Yuichi ITOU, Masao HORI
  • Publication number: 20240208107
    Abstract: Provided is a kneading apparatus which can obtain, from recovered resin, a recycled resin having a specific viscosity while minimizing the addition of impurities. One kneading apparatus has a second kneader for adding a second resin into a first resin that has been kneaded by a first kneader and kneading the mixture. The second kneader varies the amount of the second resin to be added, according to the viscosity of the first resin kneaded by the first kneader. Other kneading apparatus has a second kneader for adding a second resin and a third resin into a first resin that has been kneaded by a first kneader and kneading the mixture. The second kneader varies the proportion of the to-be-added amount of the second resin with respect to the to-be-added amount of the third resin, according to the viscosity of the kneaded material extruded from the second kneader.
    Type: Application
    Filed: June 10, 2021
    Publication date: June 27, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Takeharu ISAKI
  • Publication number: 20240213548
    Abstract: A non-aqueous electrolyte solution contains a chain sulfone compound (I) represented by Formula (I) and a cyclic sulfone compound (II) represented by Formula (II). The content of the chain sulfone compound (I) is from 0.01% by mass to 10% by mass with respect to the total amount of the non-aqueous electrolyte solution. In Formula (I), each of R11 and R12 independently represents an alkyl group, or a fluorinated alkyl group. In Formula (II), R21 represents an alkylene group, an alkenylene group, or a group represented by Formula (ii-1); and * represents a binding site; in which in Formula (ii-1), R22 represents a hydrogen atom, an alkyl group, or a group represented by Formula (ii-2); and R23 represents an alkyl group, or a group represented by Formula (ii-2).
    Type: Application
    Filed: February 7, 2022
    Publication date: June 27, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Yusuke SHIMIZU
  • Patent number: 12018115
    Abstract: A polyurethane gel material includes an aliphatic polyisocyanate (A) having an average functionality of 2.3 or more and 3.2 or less, a polyol (B) having an average functionality of 2.0 or more and 2.3 or less, and a plasticizer (C) having an ester group. The aliphatic polyisocyanate (A) contains an isocyanurate derivative of an aliphatic diisocyanate and/or an alcoholic modified isocyanurate derivative of an aliphatic diisocyanate. The polyol (B) contains a polyoxyalkylene (carbon number of 2 to 3) polyol having an ethylene oxide content of 30% by mass or less, and/or a polytetramethylene ether glycol. The polyol (B) has an average hydroxyl value of 30 mgKOH/g or more and 70 mgKOH/g or less. A ratio of the plasticizer (C) per 100 parts by mass of the polyol component (B) is 50 parts by mass or more and 400 parts by mass or less.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: June 25, 2024
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroaki Tago, Hiroshi Kanayama, Makoto Kajiura
  • Patent number: 12017434
    Abstract: Provided are: a multilayer structure having a strong initial interlayer adhesive force, with a decrease of the interlayer adhesive force being prevented even in a case of use in a harsh environment such as exposure to hot water, an acid, or an alkali for a long period of time; a method for producing such a multilayer structure; and a sheet for preventing diffusion of hazardous substances, a landfill geomembrane, and a multilayer pipe, each including such a multilayer structure.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: June 25, 2024
    Assignees: KURARAY CO., LTD., MITSUI CHEMICALS, INC.
    Inventors: Kazuhira Hata, Tatsuya Oshita, Ryohei Shiga
  • Patent number: 12014822
    Abstract: A machine learning device that includes a training section configured perform training based on plural training data each configured from oral cavity information detected from a specimen and at least one determination value selected from the group consisting of a probability of periodontal disease contraction of a provider of the specimen or a state of periodontal disease, so as to train the function to decide the determination value. The training section includes a reward calculation section, a function updating section, and a convergence determination section. The reward calculation section calculates a reward for a defined result of the probability of periodontal disease contraction or the state of periodontal disease based on the training data. The function updating section updates the function so as to increase the reward calculated by the reward calculation section. The convergence determination section causes repeated calculations and updates until a predetermined convergence condition is satisfied.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 18, 2024
    Assignee: Mitsui Chemicals, Inc.
    Inventor: Makoto Taniguchi
  • Publication number: 20240191067
    Abstract: [Problem to be Solved] To provide an ethylene-?-olefin copolymer that is excellent in formability and particularly excellent in mechanical strength compared to conventional ones. [Solution] A copolymer of ethylene and one or more ?-olefins having 4 to 10 carbon atoms, satisfying the following requirements (1) to (7): (1) the density is 890 to 925 kg/m3; (2) MFR (190° C., 2.16 kg load) is 3.0 to 15.0 g/10 min; (3) MT (melt tension)/?* (shear viscosity) is 1.40×10?4 to 2.90×10?4 g/P; (4) 0.01×10?13×Mw3.4??0 (zero shear viscosity)?4.5×10?13×Mw3.4; (5) ?2.0?Mz/Mw?Mw/Mn?15; (6) the number of vinyls and others is 0.1 to 1.0/1000 C; and (7) a plurality of peaks is present in a melting curve of DSC.
    Type: Application
    Filed: March 30, 2022
    Publication date: June 13, 2024
    Applicants: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventors: Shinya MATSUBARA, Kazuki HATO, Shuhei TATSUMI, Keisuke TAKAICHI, Naoya TAMURA, Youichi TANAKA, Chihiro KENGOYAMA, Yudai UEMATSU, Shota YOSHINO, Yuta TANAKA
  • Publication number: 20240191011
    Abstract: To provide an ethylene-?-olefin copolymer capable of producing a shaped article (in particular, a film) having excellent mechanical strength and well-balanced transparency and blocking resistance with excellent formability. A copolymer of ethylene and one or more ?-olefins having 4 to 10 carbon atoms, the copolymer satisfying the following requirements (1) to (6): (1) Density of 890 to 925 kg/m3; (2) MFR (190° C., 2.16 kg load) of 0.1 g/10 minutes or more and less than 3.0 g/10 minutes; (3) MT (melt tension)/?* (shear viscosity) of 1.20×10?4 to 2.90×10?4 g/P; (4) 0.01×10?13×Mw3.4??0 (zero shear viscosity)?3.5×10?13×Mw3.4; (5) ?7.0?Mz/Mw ?Mw/Mn?2.0; (6) Multiple peaks in melting curve of DSC.
    Type: Application
    Filed: March 30, 2022
    Publication date: June 13, 2024
    Applicants: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventors: Shinya MATSUBARA, Kazuki HATO, Naoya TAMURA, Youichi TANAKA, Chihiro KENGOYAMA, Yudai UEMATSU, Shota YOSHINO
  • Publication number: 20240192585
    Abstract: A pellicle includes a support frame having an opening, and a pellicle film. The pellicle film has a self-supporting film region covering an opening. The self-supporting film region contains an exposing region and a peripheral border region surrounding the exposing region. The peripheral border region contains a thick film portion having a thicker film thickness than a film thickness of the exposing region. The pellicle satisfies the following (i) or (ii): (i) the support frame is a rectangular frame, and the thick film portion is at least located in a pair of predetermined longer side regions, in the peripheral border region; and (ii) the support frame is a square frame, and the thick film portion is at least located in a pair of predetermined first center regions and a pair of predetermined second center regions, in the peripheral border region.
    Type: Application
    Filed: March 29, 2022
    Publication date: June 13, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Yousuke ONO
  • Publication number: 20240191068
    Abstract: An ethylene resin composition (Z) including an ethylene-?-olefin copolymer (A) satisfying requirements (1) to (4) and an ethylene-?-olefin copolymer (B) satisfying requirements (a) to (c): (1) a density of 890 to 935 kg/m3, (2) MFR (190° C., a load of 2.16 kg) of 0.1 g/10 min or more and less than 3.0 g/10 min, (3) MT (melt tension)/?* (shear viscosity) of 1.20×10?4 to 2.90×10?4 g/P, and (4) 0.01×10?13×Mw3.4??0 (zero-shear viscosity)?3.5×10?13×Mw3.4, (a) a density of 890 to 930 kg/m3, (b) MFR (190° C., a load of 2.16 kg) of 0.1 to 10 g/10 min, and (c) 1.90×10?4×Mw0.776?[?]?2.80×10?4×MW0.776.
    Type: Application
    Filed: March 30, 2022
    Publication date: June 13, 2024
    Applicants: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventors: Shinya MATSUBARA, Kazuki HATO, Shuhei TATSUMI, Naoya TAMURA, Youichi TANAKA, Chihiro KENGOYAMA, Yudai UEMATSU, Shota YOSHINO, Yuta TANAKA
  • Patent number: 12007410
    Abstract: A sheet connector according to the present invention has: a first insulating layer having a first surface positioned on one side in the thickness direction, a second surface positioned on the other side, and a plurality of first through-holes passing through between the first surface and the second surface; and a plurality of first conductive layers arranged on the inner wall surfaces of the first through-holes. First ends of the first conductive layers on the first surface side project from the first surface.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: June 11, 2024
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Katsunori Nishiura, Taichi Koyama, Daisuke Yamada
  • Patent number: 12006382
    Abstract: A (meth)acrylate includes a reaction product of a thiol compound containing two or more thiol groups, and a (meth)acrylate compound containing two or more (meth)acryloyloxy groups.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 11, 2024
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Naoyuki Kakinuma, Eri Koizumi
  • Publication number: 20240182645
    Abstract: This poly(amic acid) composition contains a poly(amic acid). Aromatic monomers account for 95 mol % or more of all monomers that constitute the poly(amic acid). The aromatic monomers include 40-95 mol % of a monomer (A) having a prescribed diphenyl ether skeleton, 0-60 mol % of a monomer (B) having a benzophenone skeleton and 0-60 mol % of a monomer (C) having a biphenyl skeleton, each relative to the total amount of monomers. The monomer (A) having a diphenyl ether skeleton includes 20 mol % or more of a monomer (A-1) having at least three aromatic rings relative to the total amount of monomers. The diamine/tetracarboxylic acid dianhydride molar ratio is 0.90-0.999.
    Type: Application
    Filed: March 25, 2022
    Publication date: June 6, 2024
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Masaki OKAZAKI, Ko TAKASE, Tatsuhiro URAKAMI, Yoshihiro SAKATA
  • Publication number: 20240182765
    Abstract: The polyamic acid composition according to the present disclosure comprises a polyamic acid. The monomers constituting the polyamic acid include, relative to the total monomers, 30-95 mol % of monomer (A) that has a diphenyl ether skeleton represented by general formula (1) or (2) but no benzophenone skeleton, and 0-5 mol % of monomer (B) that has a benzophenone skeleton. The diamines constituting the polyamic acid include aromatic diamine (?1) that has a diphenyl ether skeleton represented by general formula (2) and aliphatic diamine (?2) represented by general formula (3) or (4), and the molar ratio b/a of the diamines b to tetracarboxylic dianhydride a constituting the polyamic acid is 0.90-0.999.
    Type: Application
    Filed: March 11, 2022
    Publication date: June 6, 2024
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masaki OKAZAKI, Ko TAKASE, Tatsuhiro URAKAMI, Yoshihiro SAKATA