Patents Assigned to Daikin Industries, Ltd.
  • COPOLYMER, MOLDED BODY, EXTRUDED BODY, BLOW MOLDED BODY, TRANSFER MOLDED BODY, AND COATED ELECTRICAL WIRE
    Publication number: 20230399438
    Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.14 to 3.00 mol % with respect to the whole of the monomer units, a melt flow rate at 372° C. of 33.0 to 50.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto, Hayato Tsuda
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230399436
    Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.5 to 12.2% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.4% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.8 to 4.0 g/10 min, and a number of —CF2H of more than 50 per 106 main-chain carbon atoms.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO
  • AIR TREATMENT APPARATUS
    Publication number: 20230400204
    Abstract: An air treatment apparatus includes: a heat exchanger that exchanges heat between a fluid flowing through a first flow path and air flowing through a second flow path; and a first dust collector disposed upstream of the heat exchanger in a flow of the air and that collects a substance contained in the air flowing to the heat exchanger. The first dust collector has: a surface over which water flows, or a surface on which water is retained.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaya Nishimura, Eiichi Miyamoto
  • COPOLYMER, MOLDED BODY, INJECTION MOLDED BODY, AND COATED ELECTRICAL WIRE
    Publication number: 20230399443
    Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.6 to 5.2% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 22.0 to 28.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Hayato TSUDA
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230399442
    Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 10.3 to 12.2% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 1.2 to 1.6% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 13.0 to 17.0 g/10 min.
    Type: Application
    Filed: August 22, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto
  • POWDERY PRIMER COMPOSITION
    Publication number: 20230399528
    Abstract: A powdery primer composition, containing a meltable fluororesin powder having an average particle size of 5 to 100 ?m; and polyethersulfone powder, wherein the weight ratio between the meltable fluororesin powder and the polyethersulfone powder is 50:50 to 95:5, and the meltable fluororesin has a melt flow rate of 0.1 to 50 g/10 min. Also disclosed is a primer film formed from the powdery primer composition, and a laminate including a film containing a meltable fluororesin provided on the primer film.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yasukazu NAKATANI, Hirotake IMADA
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230399428
    Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit, and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 10.4 to 11.5% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.6% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 7.0 to 9.9 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF?CF2 and —CH2OH of 90 or less per 106 main-chain carbon atoms.
    Type: Application
    Filed: August 15, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230399430
    Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 4.10 to 5.20 mol % with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 0.53 to 0.86 mol % with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.7 to 2.5 g/10 min.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yukari YAMAMOTO, Yumi ZENKE
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230399439
    Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 7.0 to 8.5% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 1.5 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 9 to 15 g/10 min.
    Type: Application
    Filed: August 21, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yukari YAMAMOTO, Yumi ZENKE
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230399427
    Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 9.4 to 10.3% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 1.6 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 9.0 to 17.0 g/10 min.
    Type: Application
    Filed: August 15, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO
  • Composition containing refrigerant, and refrigeration method using said composition, operating method for refrigeration device, and refrigeration device
    Patent number: 11840658
    Abstract: The present disclosure provides a composition comprising a refrigerant characterized by having a coefficient of performance (COP) and a refrigerating capacity equivalent to or higher than those of R404A, and having a sufficiently low GWP. Specifically, the present disclosure provides a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf), wherein HFO-1132 (E) is present in an amount of 35.0 to 65.0 mass %, and HFO-1234yf is present in an amount of 65.0 to 35.0 mass %, based on the total mass of HFO-1132 (E) and HFO-1234yf, and wherein the refrigerant is for use in operating a refrigeration cycle in which the evaporation temperature is ?75 to ?5° C.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: December 12, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Shun Ohkubo, Mitsushi Itano, Yuuki Yotsumoto, Akihito Mizuno, Tomoyuki Gotou, Yasufu Yamada
  • Thermal flow velocity and flow rate sensor, and air conditioner
    Patent number: 11841256
    Abstract: A thermal flow velocity and flow rate sensor includes: a substrate; a heater mounted on the substrate; a temperature measuring element mounted on the substrate; a joint portion made of a resin filled between the heater and the temperature measuring element and thermally connecting the heater and the temperature measuring element; a lead wire connected to the substrate; and a fastener fixing the lead wire to the substrate. The lead wire is soldered to the substrate. The lead wire and the fastener are coated with the resin.
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: December 12, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuuki Takami, Kazunari Fukagawa, Ryuuichi Toyota, Natsuko Kitagawa, Yumi Aomatsu
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230391928
    Abstract: There is provided a fluorine-containing copolymer, containing tetrafluoroethylene unit, hexafluoropropylene unit, and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 9.5 to 11.5% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 0 to 0.4% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.0 to 7.7 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF?CF2 and —CH2OH of 80 or less per 106 main-chain carbon atoms.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 7, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto
  • COPOLYMER, MOLDED BODY, EXTRUDED BODY, BLOW MOLDED BODY, TRANSFER MOLDED BODY, AND COATED ELECTRICAL WIRE
    Publication number: 20230391932
    Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 3.9 to 5.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 2.8 to 4.0 g/10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.
    Type: Application
    Filed: August 22, 2023
    Publication date: December 7, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Hayato TSUDA
  • COATED ELECTRICAL WIRE
    Publication number: 20230395282
    Abstract: Provided is a coated electric wire having a core wire, and a coating layer installed on the periphery of the core wire, wherein the coating layer contains a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, the content of perfluoro(propyl vinyl ether) unit in the copolymer is 4.8 to 5.5% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 28.0 to 37.0 g/10 min, and the number of functional groups of the copolymer is 50 or less per 106 main-chain carbon atoms.
    Type: Application
    Filed: August 22, 2023
    Publication date: December 7, 2023
    Applicant: DAIKIN INDUSTRIES, LTD
    Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Yasuyuki YAMAGUCHI, Keizou SHIOTSUKI
  • INJECTION-MOLDED BODY AND PRODUCTION METHOD THEREFOR
    Publication number: 20230390981
    Abstract: Provided an injection molded article obtained by injection molding a copolymer using a mold provided with a gate, wherein the copolymer contains tetrafluoroethylene (TFE) unit and a fluoro(alkyl vinyl ether) (PAVE) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 3.5 to 4.7% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 22.0 to 35.0 g/10 min, the number of functional groups of the copolymer is 20 or less per 106 main-chain carbon atoms, and the injection molded article has a gate section corresponding to the gate of the mold, and the ratio of the maximum flow length from the gate section of the injection molded article (a) to the average value of the product thickness on the maximum flow length (b), ((a)/(b)), is 80 to 200.
    Type: Application
    Filed: August 22, 2023
    Publication date: December 7, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hayato TSUDA, Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Yasuyuki YAMAGUCHI, Hiroyuki HAMADA
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230391914
    Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 7.5 to 10.3% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 0.8 to 2.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.7 to 9.5 g/10 min, and a number of functional groups of 90 or less per 106 main-chain carbon atoms.
    Type: Application
    Filed: August 15, 2023
    Publication date: December 7, 2023
    Applicant: DAIKIN INDUSTRIES,LTD.
    Inventors: Tadaharu ISAKA, Yukari YAMAMOTO, Yuri ZENKE
  • REFRIGERATION SYSTEM
    Publication number: 20230392844
    Abstract: A refrigeration system includes a first device, a second device communicably connected to the first device via a first cable and a second cable, and a refrigerant pipe configured to cause refrigerant circulation to the first device or the second device, in which the first device includes a first circuit configured to short-circuit the first cable and the second cable upon detection of abnormality relevant to refrigerant leakage, and the second device includes a second circuit configured to start protection behavior against abnormality when the first cable and the second cable are short-circuited.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 7, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Makoto INOUE
  • INJECTION-MOLDED BODY AND PRODUCTION METHOD THEREFOR
    Publication number: 20230390977
    Abstract: Provided is an injection molded article containing a copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, wherein the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 3.9 to 4.8% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 11.0 to 19.0 g/10 min, the melting point of the copolymer is 296 to 305° C., and the amount of fluorine ions dissolving out from the injection molded article into water is 7,500 ?g/m2 or lower.
    Type: Application
    Filed: August 16, 2023
    Publication date: December 7, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroyuki HAMADA, Tadaharu ISAKA, Hayato TSUDA, Yumi ZENKE, Yukari YAMAMOTO, Yasuyuki YAMAGUCHI
  • FLUORINE-CONTAINING COPOLYMER
    Publication number: 20230391919
    Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 6.0 to 7.6% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 1.5 to 2.4% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 4.5 to 9.5 g/10 min.
    Type: Application
    Filed: August 16, 2023
    Publication date: December 7, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO