公开(公告)号：US20230391914A1

公开(公告)日：2023-12-07

申请号：US18449898

申请日：2023-08-15

Applicant: DAIKIN INDUSTRIES,LTD.

Inventor： Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yuri ZENKE

IPC: C08F214/26 ,  C09D127/18 ,  H01B3/44

CPC classification number: C08F214/262 ,  C09D127/18 ,  H01B3/445 ,  C08F2800/20

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.