	US 11,865,758 B2
	Fluororesin molded article
Hitomi Nishimura, Shizuoka (JP); Takahiro Nishimura, Shizuoka (JP); and Bangjia Lin, Shizuoka (JP)
Assigned to CHEMOURS-MITSUI FLUOROPRODUCTS CO. LTD., Tokyo (JP)
Appl. No. 16/626,718
Filed by CHEMOURS-MITSUI FLUOROPRODUCTS CO., LTD., Tokyo (JP)
PCT Filed Jun. 26, 2017, PCT No. PCT/JP2017/023368 § 371(c)(1), (2) Date Dec. 26, 2019, PCT Pub. No. WO2019/003265, PCT Pub. Date Jan. 3, 2019.
Prior Publication US 2020/0114563 A1, Apr. 16, 2020
Int. Cl. B29C 48/00 (2019.01); B29C 48/06 (2019.01); B29C 48/07 (2019.01); B29C 48/09 (2019.01); B29K 27/18 (2006.01); B29K 105/00 (2006.01)

CPC B29C 48/022 (2019.02) [B29C 48/06 (2019.02); B29C 48/07 (2019.02); B29C 48/09 (2019.02); B29K 2027/18 (2013.01); B29K 2105/0079 (2013.01); B29K 2105/0085 (2013.01); B29K 2105/0088 (2013.01); B29K 2105/0094 (2013.01)]

7 Claims

1. A molded article having a hollow portion, the molded article consisting of a tetrafluoroethylene (TFE) and perfluoro(ethyl vinyl ether) (PEVE) copolymer (PFA) consisting of tetrafluoroethylene (TFE) and 1 to 10 mol % of perfluoro(ethyl vinyl ether) (PEVE), wherein said molded article has a flex life value of not less than 2,000,000 times, a zero shear viscosity of from 10,000 to 20,000 Pa·s, and a heating weight loss of not more than 0.05% by weight upon heating to 360° C. for one hour, wherein the PFA contains fewer than 6 unstable terminal groups per 106 carbon atoms, wherein the unstable terminal groups comprise —CH₂OH, —CONH₂, and —COF terminal groups.