公开(公告)号：US20210047497A1

公开(公告)日：2021-02-18

申请号：US17081446

申请日：2020-10-27

Applicant: Daikin Industries, LTD.

Inventor： Hirokazu KOMORI ,  Junpei TERADA ,  Hiroyuki SENDAN ,  Tadahiro YABU ,  Yukihiro FUKAGAWA ,  Kenta MURAYAMA ,  Tomohiro SHIROMARU ,  Toshio MIYATANI ,  Masahiro KONDOU ,  Hiroyuki HAMADA

IPC: C08K3/36 ,  B29C64/153 ,  B29C64/314 ,  B33Y70/00

Abstract: A shaping material for a powder bed fusion method, including a powder of a fluororesin, wherein the fluororesin has a D50 of 30 μm or more and 200 μm or less, and the fluororesin has a D10 of 12 μm or more.

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.

公开(公告)号：US20210087354A1

公开(公告)日：2021-03-25

申请号：US16954772

申请日：2018-09-06

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hiroyuki SENDAN ,  Tadahiro YABU ,  Yukihiro FUKAGAWA ,  Kenta MURAYAMA ,  Tomohiro SHIROMARU ,  Toshio MIYATANI ,  Masahiro KONDOU ,  Hiroyuki HAMADA

IPC: C08K3/36 ,  B33Y70/10

Abstract: A shaping material for a powder bed fusion method, containing a powder of a fluororesin.

公开(公告)号：US20230390981A1

公开(公告)日：2023-12-07

申请号：US18453810

申请日：2023-08-22

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: B29C45/00 ,  B29C45/78

CPC classification number: B29C45/0001 ,  B29C45/78 ,  B29K2027/18

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.

公开(公告)号：US20220170573A1

公开(公告)日：2022-06-02

申请号：US17673374

申请日：2022-02-16

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hitoshi IMAMURA ,  Hiroyuki HAMADA ,  Eri MUKAI ,  Yuuki KUWAJIMA ,  Manabu FUJISAWA

IPC: F16L11/06 ,  B29C48/32 ,  B29C48/09 ,  B29C48/27

Abstract: Provided is a tube comprising a tetrafluoroethylene/fluoroalkyl vinyl ether copolymer, wherein the tube inner surface has a surface roughness Ra of 5 nm or less measured by atomic force microscopy (AFM) with an evaluation length set to 3 μm, and the tube has an amount of metals eluted from the tube inner surface of 0.30 ng/cm2 or less.

公开(公告)号：US20230392737A1

公开(公告)日：2023-12-07

申请号：US18453690

申请日：2023-08-22

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: F16L41/02 ,  B29C45/14 ,  B29C45/26 ,  B29C45/72 ,  B29D23/00 ,  C08F214/26

CPC classification number: F16L41/021 ,  B29C45/14065 ,  B29C45/261 ,  B29C45/7207 ,  B29D23/001 ,  C08F214/262 ,  B29C2045/363

Abstract: Provided is a pipe joint including a cylindrical hollow, wherein the wall thickness of a part having the largest wall thickness of the pipe joint is 2 to 7 mm, the ratio of the length of the hollow in the axial direction (L) to the diameter of the hollow (D), (L/D), is 5 or less, the pipe joint 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：US20230390978A1

公开(公告)日：2023-12-07

申请号：US18450590

申请日：2023-08-16

Applicant: DAIKIN INDUSTRIES,LTD.

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

IPC: B29C45/00 ,  B29C45/78

CPC classification number: B29C45/0001 ,  B29C45/78 ,  B29K2027/18

Abstract: There is 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) (FAVE) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 5.2 to 6.3% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 19.0 to 35.0 g/10 min, the number of functional groups of the copolymer is 50 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 (a) from the gate section of the injection molded article to the average value (b) of the product thickness on the maximum flow length, ((a)/(b)), is 80 to 200.

公开(公告)号：US20230390977A1

公开(公告)日：2023-12-07

申请号：US18450568

申请日：2023-08-16

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: B29C45/00 ,  B29C45/47

CPC classification number: B29C45/0001 ,  B29C45/47 ,  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 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 μg/m2 or lower.

公开(公告)号：US20210008775A1

公开(公告)日：2021-01-14

申请号：US17041669

申请日：2019-02-22

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hitoshi IMAMURA ,  Hiroyuki HAMADA ,  Eri MUKAI ,  Masahiro KONDO

IPC: B29C48/00 ,  B65D35/08 ,  F16L11/04 ,  B29C48/04 ,  C08F8/20

Abstract: A molding material including a melt-fabricable fluororesin and having a metal content of 100 ng/1 g or less as measured by an ashing method. Also disclosed is a tube made of the molding material.

公开(公告)号：US20250011499A1

公开(公告)日：2025-01-09

申请号：US18894291

申请日：2024-09-24

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: C08F214/26 ,  C08J5/18

Abstract: Provided is a copolymer comprising tetrafluoroethylene unit and perfluoro(ethyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(ethyl vinyl ether) unit of 4.5 to 6.2% 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 the number of functional groups of 20 or less per 106 main-chain carbon atoms.