Patents Assigned to Asahi Kasei Kabushiki Kaisha
  • ELECTROLYSIS SYSTEM AND METHOD OF USE THEREOF
    Publication number: 20230220575
    Abstract: An electrolysis system of the present disclosure includes an electrolyzer which includes an electrode to generate a gas from the electrode, and a tightening device which controls a tightening load on the electrolyzer in accordance with a pressure of the gas.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 13, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yasuhiro FUJITA, Hiroyuki TOGO, Hirokazu NAGATE, Yousuke UCHINO, Keisuke NAKASHIMA
  • PHOTOSENSITIVE RESIN COMPOSITION AND METHOD FOR PRODUCING CURED RELIEF PATTERN
    Publication number: 20230221639
    Abstract: A negative-type photosensitive resin composition that has a satisfactory imidization rate and can yield a resin layer with high chemical resistance, even under low-temperature curing conditions of 200° C. or below, the negative-type photosensitive resin composition containing a photopolymerization initiator (B) in a proportion of 0.1 part by mass to 20 parts by mass with respect to 100 parts by mass of a polyimide precursor (A), the polyimide precursor (A) being a polyamic acid ester or polyamic acid salt with a specific structure, and the weight-average molecular weight (Mw) of the polyimide precursor (A) being 3,000 or greater and less than 16,000, in terms of polystyrene, according to gel permeation chromatography (GPC).
    Type: Application
    Filed: March 21, 2023
    Publication date: July 13, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Tomohiro YORISUE, Mitsutaka NAKAMURA, Taihei INOUE
  • Separator for Power Storage Device
    Publication number: 20230223653
    Abstract: Provided is a separator for a power storage device that combines high permeability and battery safety at high temperature. The separator for a power storage device has an inorganic content layer that contains inorganic particles and polyolefin resin. In a cross section of the inorganic content layer, a ratio b of the area occupied by the inorganic particles is 9-35% [inclusive], the ratio of the area occupied by vacancies is 20-60% [inclusive], and a TD direction heat shrinkage a at 150° C. of the separator for a power storage device is 4% or less.
    Type: Application
    Filed: May 18, 2021
    Publication date: July 13, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Kazunori Uchida, Shohei Mori, Toshihiro Suzuki, Masato Murakami, Mitsuko Saito, Shinya Hamasaki, Michiko Shimoyamada
  • Method for producing a biodegradable nonwoven fabric
    Patent number: 11697896
    Abstract: The present disclosure provides: a biodegradable nonwoven fabric for thermoforming, the biodegradable nonwoven fabric being composed of a fiber of a polylactic acid-based polymer, and having a basis weight of 20-300 g/m2, preferably, a biodegradable nonwoven fabric characterized by being composed of a long fiber of a polylactic acid polymer, having an MD-direction elongation of 50% or more at 120° C., and having an MD-direction dimensional change rate of ±4% or less at 80-140° C. as determined by thermomechanical analysis; a method for producing a molded body by using said biodegradable nonwoven fabric; and a method for molding a biodegradable beverage extraction container, the method being characterized in that the molded body has an MD-direction elongation change rate of 4% or less, as determined by thermomechanical analysis (TMA) under a load of 0.05 N/2 mm at 30-100° C.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: July 11, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Yusuke Yamada, Chie Okamura, Takuya Matsumoto, Rumina Obi, Kazufumi Kato
  • COMPOSITE MATERIAL LAMINATE
    Publication number: 20230211583
    Abstract: An object of the present disclosure is to provide a composite material laminate excellent in impact resistance and vibration damping property. The present disclosure is a composite material laminate including a metal substrate, an adhesive layer formed on a surface of the metal substrate, and a foamed body layer formed on a surface of the adhesive layer, wherein a shear fracture strength (S) at an interface between the metal substrate and the adhesive layer is 1.0 MPa or more, and (S/F) determined by dividing the shear fracture strength (S) at the interface by a bending elastic modulus (F) of the foamed body layer is 0.007 or more and 0.5 or less.
    Type: Application
    Filed: June 2, 2021
    Publication date: July 6, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Yasuyuki KAWAZU
  • AMINIMIDE COMPOUND, AMINIMIDE COMPOSITION, CURING AGENT, EPOXY RESIN COMPOSITION, METHOD FOR PRODUCING AMINIMIDE COMPOUND, ENCAPSULANT, AND ADHESIVE
    Publication number: 20230212132
    Abstract: Provided is an aminimide compound that is excellent in penetration and has excellent curability and storage stability. An aminimide compound represented by the following formula (1), (2) or (3): wherein each R1 independently represents a hydrogen atom, or a monovalent or n-valent organic group having 1 to 15 carbon atoms and optionally having a hydroxy group, a carbonyl group, an ester bond, or an ether bond; R2 and R3 each independently represent an unsubstituted or substituted alkyl group having 1 to 12 carbon atoms, aryl group, aralkyl group, or heterocyclic ring having 7 or less carbon atoms in which R2 and R3 are linked to each other; each R4 independently represents a hydrogen atom, or a monovalent or n-valent organic group having 1 to 30 carbon atoms and optionally containing an oxygen atom; and n represents an integer of 1 to 3.
    Type: Application
    Filed: July 14, 2021
    Publication date: July 6, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Naoya KAMIMURA, Teruhisa YAMADA
  • Fiber constituted from carbon nanotube and method for manufacturing same
    Patent number: 11686019
    Abstract: The purpose of the present disclosure is to provide a CNT fiber that is constituted of aligned carbon nanotubes (CNTs), is thin, has little irregularity in thickness, has excellent winding properties when undergoing coiling processing, and has superior conductivity. Provided is a CNT fiber constituted of carbon nanotubes (CNTs) having a thickness of 0.01 ?m-3 mm, having a coefficient of variation for irregularity in thickness of 0.2 or less, having a distribution rate a for deviation from roundness of 40% or greater, and a distribution rate b of 70% or greater. Also provided is a method for manufacturing the CNT fiber.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 27, 2023
    Assignees: National Institute of Advanced Industrial Science and Technology, Asahi Kasei Kabushiki Kaisha
    Inventors: Ken Mukai, Shuhei Ikenaga, Kinji Asaka, Toru Morita, Yujin Motoyama, Yuta Saito
  • Resin Composition, Method for Producing Modified Hydrogenated Block Copolymer, and Molded Article
    Publication number: 20230193017
    Abstract: The present invention provides a resin composition, containing: a component (I) of a modified block copolymer (I) that has a polymer block (A) mainly comprising a vinyl aromatic compound unit, and a polymer block (B) mainly comprising a conjugated diene compound unit, and has 0.01% by mass or more of a polar group; and a component (II) of a resin (II) having a polar group (excluding the component (I)), in which a mass ratio between the component (I) and the component (II), (I)/(II), is 1/99 to 70/30, and the component (I) satisfies the following conditions (i) to (iii): <Condition (i)> A content of the vinyl aromatic compound unit in the modified block copolymer (I) is 1 to 30% by mass. <Condition (ii)> A vinyl bond content is 1 to 55%. <Condition (iii)> A hydrogenation rate is 5 to 55%.
    Type: Application
    Filed: May 14, 2021
    Publication date: June 22, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Yuta Matsuoka, Takashi Sukegawa
  • POLYCARBONATE RESIN, POLYCARBONATE RESIN COMPOSITION, OPTICAL MOLDED ARTICLE COMPRISING SAME, AND CYCLIC CARBONATE
    Publication number: 20230192949
    Abstract: A polycarbonate resin comprising a structural unit represented by the following formula (1), wherein weight-average molecular weight Mw measured by size-exclusion chromatography using polymethyl methacrylate as a standard sample is 50,000 or larger and 500,000 or smaller:
    Type: Application
    Filed: January 15, 2021
    Publication date: June 22, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Tatsuro Toda, Hisanari Yoneda, Takuto Nakata, Shota Ide, Hiroshi Fukuoka, Katsuhiro Iwase, Masaaki Aramaki, Osamu Haba, Yusuke Tazawa
  • GIS-TYPE ZEOLITE
    Publication number: 20230183081
    Abstract: A GIS-type zeolite having a carbon atom content of 4% by mass or less and a silica-alumina ratio of 4.23 or more, wherein the GIS-type zeolite satisfies at least one of the following conditions (i) and (ii) in a spectrum obtained by X-ray diffraction: (i) when heights of peaks around 2?=12.45 and 28.07° are respectively defined as A and B, 0.62?A/B is satisfied; and (ii) when heights of peaks around 2?=28.07 and 46.04° are respectively defined as B and C, 11.5?B/C is satisfied.
    Type: Application
    Filed: July 30, 2021
    Publication date: June 15, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Takayuki AKAOGI, Atsushi OHKUBO, Saya TANAKA
  • GLASS CLOTH, PREPREG, AND PRINTED WIRING BOARD
    Publication number: 20230189438
    Abstract: Provided is a glass cloth obtained by weaving a glass thread, which is made from a plurality of glass filaments, as a warp and weft. The average filament diameter of the glass filaments is 3.0-4.5 ?m. The respective weaving densities of the warp and the weft constituting the glass cloth are, independently, 70-130 threads/25 mm. The standard deviation of weft width of the glass cloth is not more than 30 ?m. The weft covering ratio R, which is represented by the expression R=Y/(25400/D) (where R is the weft covering ratio, Y is the average weft width, and D is the well weaving density) satisfies the relational expression 0.50?R?0.83.
    Type: Application
    Filed: July 16, 2021
    Publication date: June 15, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Hiroyuki HONMA, Amane HIROSE
  • WATER DISPERSION OF VINYL HALIDE COPOLYMER AND FILM
    Publication number: 20230174762
    Abstract: Provided is a water dispersion of a vinyl halide copolymer having favorable film formation property after long-term storage while maintaining high water vapor barrier property of a film after coating. A water dispersion of a vinyl halide copolymer comprises a vinyl halide copolymer containing a structural unit derived from a vinyl halide monomer and a structural unit derived from a copolymerization monomer whose reactivity ratio r1 is less than 0.7, wherein a mass ratio of the structural unit derived from the copolymerization monomer is 1 part by mass or more with respect to 100 parts by mass in total of the structural unit derived from the vinyl halide monomer, the structural unit derived from the copolymerization monomer, and a structural unit derived from a copolymerization monomer whose reactivity ratio r1 is 0.7 or more, and S1/(S1+S2) is 0 or more and 0.33 or less.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 8, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Natsuki HOSOE, Naoaki YAMASAKI
  • Separator having silane-modified polyolefin and polyethylene, and method for producing the same
    Patent number: 11670822
    Abstract: There is provided a method for producing a separator for an electricity storage device that includes a step of contacting a porous body formed from a silane-modified polyolefin-containing molded sheet with a base solution or acid solution, and a separator for an electricity storage device comprising a microporous film with a melted film rupture temperature of 180° C. to 220° C. as measured by thermomechanical analysis (TMA).
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: June 6, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi
  • HALOGENATED VINYL POLYMER WATER DISPERSION, MULTILAYER FILM, AND BLISTER PACK FOR MEDICATION
    Publication number: 20230167328
    Abstract: Provided is a water dispersion that has excellent coatability in recoating and that yields a uniform coating film without leveling failure, orange peel patterning, or the occurrence of foaming during film shaping. A halogenated vinyl polymer water dispersion contains a halogenated vinyl polymer and more than 0 mass% and less than 2.5 mass%, relative to resin solid content, of an anionic amphiphilic compound having a hydrophilicity index of less than 41.0.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 1, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Tokiharu ONISHI, Naoaki YAMASAKI
  • Blocked polyisocyanate composition and use thereof
    Patent number: 11661473
    Abstract: A blocked polyisocyanate composition containing a blocked polyisocyanate obtained from a polyisocyanate and at least one blocking agent, wherein the blocking agent contains a compound represented by general formula (I) shown below, and the amount of methane tetracarbonyl structures represented by general formula (II) shown below, relative to the total molar amount within the blocked polyisocyanate of bonded structures in which the compound represented by general formula (I) is bonded to the polyisocyanate, is at least 0.5 mol % but not more than 10 mol %.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: May 30, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Eiko Tanaka, Yuichi Miwa, Masakazu Yamauchi, Kie Shinomiya
  • CONJUGATED DIENE-BASED POLYMER, PRODUCTION METHOD FOR SAME, CONJUGATED DIENE-BASED POLYMER COMPOSITION, AND RUBBER COMPOSITION
    Publication number: 20230159687
    Abstract: The present invention provides a conjugated diene-based polymer excellent in processability in vulcanization, and excellent in abrasion resistance and a low hysteresis loss property of a vulcanizate obtained therefrom. The present invention relates to a conjugated diene-based polymer, having a branch number measured by viscosity detector-equipped GPC-light scattering measurement of 7 or more, an amount of bound aromatic vinyl of 1% by mass or more and 32% by mass or less, and a content of vinyl bond in bound conjugated diene of 11% by mol or more and 35% by mol or less.
    Type: Application
    Filed: April 2, 2021
    Publication date: May 25, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Takaaki USHIO, Shuri TOBO, Kenta HISAMURA, Shogo SUMITANI, Shinichi SEKIKAWA, Yoshifumi ARAKI
  • Cellulose-containing gear
    Publication number: 20230160457
    Abstract: A gear is provided that has excellent continuous moldability for practical use, and both high slidability and high durability. The provided gear is a molded resin constructed of a resin composition comprising a thermoplastic resin (A) and cellulose nanofibers (B) with an average fiber diameter of 1000 nm or smaller, and having a number average molecular weight of the thermoplastic resin (A) in the range of 10,000 to 150,000, wherein a sliding surface of the gear with another gear teeth has an arithmetic mean surface roughness Sa of 3.0 µm or lower.
    Type: Application
    Filed: November 3, 2022
    Publication date: May 25, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Junichi Tsuzuki, Sara Kusumoto
  • Porous hollow fiber membrane and method for producing porous hollow fiber membrane
    Patent number: 11654400
    Abstract: Provided is a porous hollow fiber membrane made of a thermoplastic resin, wherein a membrane thickness is 0.050 mm or larger and 0.25 mm or smaller, and when a strength coefficient is defined as K=(compressive strength)/((membrane thickness)/(inside diameter/2))3, K=1.7 or more.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: May 23, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yuki Miki, Daisuke Okamura
  • Carbon foam and manufacturing method thereof
    Patent number: 11655152
    Abstract: A carbon foam comprising linear portions and node portions joining the linear portions, wherein the linear portions have a diameter of 0.1 ?m or more and 10.0 ?m or less, and the carbon foam has a surface with an area of 100 cm2 or more.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 23, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Atsushi Suzuki, Junya Yamashita, Shozo Takada
  • Nonwoven Fabric and Composite Sound-Absorbing Material Using Same as Skin Material
    Publication number: 20230150230
    Abstract: Provided is a nonwoven fabric and a laminated nonwoven fabric suitable as the skin material of a composite sound-absorbing material. The nonwoven fabric and laminated nonwoven fabric are easily formable, thin, and lightweight and excel in form stability, and can nevertheless be controlled within a given range of aeration after being formed into shape. A nonwoven fabric having a laminate structure in which at least one ultra-fine fiber layer (M) having an average fiber diameter of 0.3 to 7 ?m (inclusive) and a basis weight of 1 g/m2 to 40 g/m2 (inclusive) and at least one continuous filament layer (S) having an average fiber diameter of 10 to 30 ?m (inclusive) are integrated together by partial thermocompression bonding.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 18, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Shinya Yamamuro, Rumina Obi, Kazufumi Kato, Tomoya Tanaka, Chie Okamura, Yasushi Isono, Junki Saito