US 12,459,181 B2
Layered body and extrusion-molded article
Kozue Osawa, Osaka (JP); Yuuki Kuwajima, Osaka (JP); and Masayuki Tsuji, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Jun. 24, 2022, as Appl. No. 17/849,530.
Application 17/849,530 is a continuation of application No. 17/736,513, filed on May 4, 2022.
Application 17/736,513 is a continuation of application No. PCT/JP2020/039986, filed on Oct. 23, 2020.
Claims priority of application No. 2019-200567 (JP), filed on Nov. 5, 2019.
Prior Publication US 2023/0001616 A1, Jan. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 48/00 (2019.01); B29K 27/18 (2006.01); B32B 27/08 (2006.01)
CPC B29C 48/0021 (2019.02) [B29C 48/022 (2019.02); B32B 27/08 (2013.01); B29K 2027/18 (2013.01); B32B 2327/18 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A tube or a hose comprising a fluoroelastomer and a polytetrafluoroethylene, the tube or the hose being an extruded article obtained by extruding a fluoroelastomer composition to provide an extrudate and crosslinking the extrudate, wherein the polytetrafluoroethylene is dispersed in a state of single particles in the extruded article, and a content of the polytetrafluoroethylene in the extruded article is 10 to 45 parts by mass based on 100 parts by mass of the fluoroelastomer, the fluoroelastomer composition containing the fluoroelastomer, the polytetrafluoroethylene, a basic polyfunctional compound, a peroxide crosslinking agent, and a crosslinking aid.