公开(公告)号：US20250011500A1

公开(公告)日：2025-01-09

申请号：US18895515

申请日：2024-09-25

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO ,  Hayato TSUDA

IPC: C08F214/26 ,  B29C45/00 ,  B29K27/18

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 5.6 to 6.38 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 17.1 to 23.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230391911A1

公开(公告)日：2023-12-07

申请号：US18448291

申请日：2023-08-11

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO ,  Hayato TSUDA ,  Yasuyuki YAMAGUCHI

IPC: C08F214/26 ,  H01B3/44 ,  B29C45/00

CPC classification number: C08F214/262 ,  H01B3/445 ,  B29C45/0001 ,  B29K2027/18

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 4.4 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 7.5 to 11.0 g/10 min, and the number of functional groups of 40 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230391909A1

公开(公告)日：2023-12-07

申请号：US18447877

申请日：2023-08-10

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO ,  Hayato TSUDA

IPC: C08F214/26 ,  H01B3/44

CPC classification number: C08F214/262 ,  H01B3/445

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 2.42 to 2.75 mol % with respect to the whole of the monomer units, a melt flow rate at 372° C. of 11.0 to 15.5 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230390979A1

公开(公告)日：2023-12-07

申请号：US18452806

申请日：2023-08-21

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hayato TSUDA ,  Tadaharu Isaka ,  Yumi Zenke ,  Yukari Yamamoto ,  Yasuyuki Yamaguchi ,  Hiroyuki Hamada

IPC: B29C45/00 ,  B29C63/20

CPC classification number: B29C45/0001 ,  B29C63/20 ,  B29L2023/22

Abstract: Provided is an injection molded article including a pipe body section forming a flow path of a fluid, and a flange section formed on one end or both ends of the pipe body section, wherein the maximum thickness of the flange section is 2 to 12 mm, the injection molded article contains a copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 2.8 to 6.0% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 4.0 g/10 min or higher and lower than 11.0 g/10 min, and the number of functional groups of the copolymer is 50 or less.

公开(公告)号：US20230259677A1

公开(公告)日：2023-08-17

申请号：US18128023

申请日：2023-03-29

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Jihong LIU ,  Takahisa AOYAMA ,  Hayato TSUDA ,  Masamichi SUKEGAWA ,  Satoru TAKANEZAWA

IPC: G06F30/23

CPC classification number: G06F30/23

Abstract: A predicting method includes a first step and a second step. The first step includes outputting initial information indicating states of a structure and an object when the object is assembled to the structure, by simulating a process of assembling the object to the structure. The second step includes outputting first prediction information indicating future states of the structure and the object by simulating temporal change of assembly state in which the object is assembled to the structure, using the initial information.

公开(公告)号：US20230238629A1

公开(公告)日：2023-07-27

申请号：US18192077

申请日：2023-03-29

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Hayato TSUDA ,  Yumi ZENKE ,  Yukari YAMAMOTO ,  Takahisa AOYAMA

IPC: H01M50/193 ,  H01M50/188

CPC classification number: H01M50/193 ,  H01M50/188

Abstract: A sealing member containing a copolymer containing tetrafluoroethylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the perfluoro (propyl vinyl ether) unit of 4.0 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate of 26 to 37 g/10 min, and the number of functional groups of —CF═CF2, —CF2H, —COF, —COOH, —COOCH3, —CONH2 and —CH2OH of more than 50 per 106 main-chain carbon atoms, wherein the sealing member has a thickness of 0.5 to 2.5 mm and a sealing area of 0.5 to 50 cm2, and wherein the sealing member is in a state of being compressed at a compression deformation rate of 20 to 60%. Also disclosed is a power storage assembly including the sealing member.

公开(公告)号：US20220018763A1

公开(公告)日：2022-01-20

申请号：US17487453

申请日：2021-09-28

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takahisa AOYAMA ,  Hayato TSUDA ,  Yuuki KUWAJIMA

IPC: G01N21/45 ,  G01N21/95 ,  B29C45/00 ,  B29C45/76

Abstract: A method for inspecting a molded article, the method enabling non-destructive inspection of an internal condition of a molded article containing fluorine, and a method for producing a molded article including the inspection method. The method for inspecting a molded article includes a step (A1) of inspecting an internal condition of a molded article having a fluorine content of 30% by mass or more based on image data obtained by imaging the molded article by optical coherence tomography.

公开(公告)号：US20190338114A1

公开(公告)日：2019-11-07

申请号：US16477401

申请日：2017-12-04

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yuuki KUWAJIMA ,  Hayato TSUDA ,  Kazuki HOSODA

IPC: C08L27/18 ,  C08L27/16 ,  C08F214/22 ,  C08F214/26 ,  C08F214/18

Abstract: A fluororesin including a vinylidene fluoride unit and a tetrafluoroethylene unit. The fluororesin has a gas chromatography-mass spectrometry total ion chromatogram including a peak which is assigned to a component having a molecular weight of 202 to 903 and which has a peak intensity of 1000 or lower. Also disclosed is a molded article formed from the fluororesin.

公开(公告)号：US20250011496A1

公开(公告)日：2025-01-09

申请号：US18892985

申请日：2024-09-23

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yukari YAMAMOTO ,  Tadaharu ISAKA ,  Yumi ZENKE ,  Hayato TSUDA

IPC: C08F214/26 ,  C08J5/18

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 3.8 to 4.38 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 6.0 to 9.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230415387A1

公开(公告)日：2023-12-28

申请号：US18450094

申请日：2023-08-15

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hiroyuki HAMADA ,  Hayato TSUDA ,  Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yumi ZENKE

IPC: B29C45/00

CPC classification number: B29C45/0001 ,  B29K2027/18

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 4.7 to 7.0% 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 22.0 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 μg/m2 or lower.