公开(公告)号：US20230066133A1

公开(公告)日：2023-03-02

申请号：US17259840

申请日：2019-06-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takahisa AOYAMA ,  Hayato TSUDA ,  Yuuki KUWAJIMA

IPC: B29C45/76 ,  G01N3/08 ,  G01N33/44

Abstract: Provided is a method for testing a melt-fabricable fluororesin injection-molded article which enables easy determination of whether or not a tested article is a defective article due to a crack or delamination. The method for testing a melt-fabricable fluororesin injection-molded article includes determining whether or not a melt-fabricable fluororesin injection-molded article is defective due to a crack or delamination based on a stress-strain curve or tensile strength-strain curve obtained by a tensile test performed on the injection-molded article.

公开(公告)号：US20220266485A1

公开(公告)日：2022-08-25

申请号：US17680911

申请日：2022-02-25

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: B29C45/00

Abstract: Provided is an injection molding method for obtaining an injection molded article using an injection molding machine by means of filling a mold cavity of a mold with a molten copolymer from a nozzle of the injection molding machine, wherein the minimum thickness of the mold cavity is 0.8 mm or less, the total projected area of the mold is 1 cm2 or more, and the copolymer is a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, wherein the number of functional groups is 100 or less per 106 main-chain carbon atoms of the copolymer.

公开(公告)号：US20220069396A1

公开(公告)日：2022-03-03

申请号：US17525601

申请日：2021-11-12

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: H01M50/193 ,  H01M50/147 ,  H01M50/172 ,  H01M10/0525

Abstract: A sealing structure for a battery includes a plate shaped member having a through hole, a polymer molding, and an electrode. The polymer molding has a tube portion provided along an entire edge of the through hole, and a base portion provided on the tube portion. The electrode has a column portion disposed on an inner periphery of the tube portion, and a plate portion provided on the column portion. A back surface of the plate shaped member contacts a front surface of the base portion. A front surface of the plate portion contacts a back surface of the base portion. At least one of the back surface of the plate shaped member and the front surface of the plate portion has an annular projection provided around the through hole and projecting toward the base portion.

公开(公告)号：US20250011494A1

公开(公告)日：2025-01-09

申请号：US18891549

申请日：2024-09-20

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: C08F214/26

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 4.3 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.7 to 1.4 g/10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.

公开(公告)号：US20220278403A1

公开(公告)日：2022-09-01

申请号：US17679765

申请日：2022-02-24

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: H01M50/193 ,  C08F214/26

Abstract: A member for a non-aqueous electrolyte battery containing a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, in which the number of functional groups per 106 carbon atoms of a main chain of the copolymer is 100 or less, and a melt flow rate of the copolymer is 20 to 30 g/10 minutes.

公开(公告)号：US20220181729A1

公开(公告)日：2022-06-09

申请号：US17679831

申请日：2022-02-24

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: H01M50/193 ,  H01M50/188

Abstract: A power storage assembly having a gasket containing a copolymer containing a tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of the fluoro(alkyl vinyl ether) unit of 2.0 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate of 0.5 to 55 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20220195088A1

公开(公告)日：2022-06-23

申请号：US17599086

申请日：2020-04-03

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hitoshi IMAMURA ,  Takahisa AOYAMA ,  Hayato TSUDA ,  Tadaharu ISAKA

IPC: C08F214/26 ,  H01M50/193 ,  H01M50/426

Abstract: A member to be compressed for an electrochemical device, including a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, the copolymer having a content of the fluoroalkyl vinyl ether unit based on all the monomer units of the copolymer of 4.3% by mass or more and less than 5.5% by mass, and having a melt flow rate of 10 to 23 g/10 min.

公开(公告)号：US20220181698A1

公开(公告)日：2022-06-09

申请号：US17679789

申请日：2022-02-24

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: H01M10/0569 ,  H01M50/186

Abstract: A member for a non-aqueous electrolyte battery containing a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, in which the number of functional groups per 106 carbon atoms of a main chain of the copolymer is 100 or less, and a melt flow rate of the copolymer is more than 30 g/10 minutes.

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.