US 12,459,175 B2
Injection-molded body and production method therefor
Hiroyuki Hamada, Osaka (JP); Tadaharu Isaka, Osaka (JP); Hayato Tsuda, Osaka (JP); Yumi Zenke, Osaka (JP); Yukari Yamamoto, Osaka (JP); and Yasuyuki Yamaguchi, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Aug. 16, 2023, as Appl. No. 18/450,568.
Application 18/450,568 is a continuation of application No. PCT/JP2022/003661, filed on Jan. 31, 2022.
Claims priority of application No. 2021-031087 (JP), filed on Feb. 26, 2021; application No. 2021-031090 (JP), filed on Feb. 26, 2021; application No. 2021-031091 (JP), filed on Feb. 26, 2021; application No. 2021-031094 (JP), filed on Feb. 26, 2021; and application No. 2021-162163 (JP), filed on Sep. 30, 2021.
Prior Publication US 2023/0390977 A1, Dec. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 45/00 (2006.01); B29C 45/47 (2006.01); B29K 27/12 (2006.01); B29K 27/18 (2006.01)
CPC B29C 45/0001 (2013.01) [B29C 45/47 (2013.01); B29K 2027/12 (2013.01); B29K 2027/18 (2013.01); B29K 2995/0012 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An injection molded article comprising a copolymer comprising tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit,
wherein a 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,
a melt flow rate at 372° C. of the copolymer is 11.0 to 19.0 g/10 min,
a melting point of the copolymer is 296 to 305° C., and
an amount of fluorine ions dissolving out from the injection molded article into water is 7,500 μg/m2 or lower.