US 12,291,624 B2
Polytetrafluoroethylene composition
Ken Yoshida, Osaka (JP); Keisuke Hagi, Osaka (JP); and Hirokazu Yukawa, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Appl. No. 17/057,228
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
PCT Filed May 15, 2019, PCT No. PCT/JP2019/019295
§ 371(c)(1), (2) Date Nov. 20, 2020,
PCT Pub. No. WO2019/225434, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 2018-097927 (JP), filed on May 22, 2018.
Prior Publication US 2021/0206946 A1, Jul. 8, 2021
Int. Cl. C08K 7/06 (2006.01); C08K 3/04 (2006.01)
CPC C08K 7/06 (2013.01) [C08K 3/04 (2013.01); C08K 2201/004 (2013.01)] 5 Claims
 
1. A polytetrafluoroethylene composition comprising polytetrafluoroethylene and fibrous filler,
the fibrous filler being a carbon fiber,
an amount of the carbon fiber relative to the polytetrafluoroethylene being 10 to 25% by mass,
the carbon fiber having an average fiber length of 40 to 100 μm, and including fibers (a) having a fiber length of longer than 160 μm,
an amount of the fibers (a) relative to the carbon fiber being 3% by mass or less,
the polytetrafluoroethylene having non melt-processibility.