US 12,331,850 B2
Low permeation type C air conditioning hose
Aaron David Clark, Lambertville, MI (US); Gina Clark, Lambertville, MI (US); and Colleen Marie Hathaway, Dundee, MI (US)
Assigned to DANFOSS POWER SOLUTIONS II TECHNOLOGY A/S, Nordborg (DK)
Appl. No. 17/631,009
Filed by Danfoss Power Solutions II Technology A/S, Nordborg (DK)
PCT Filed Jul. 24, 2020, PCT No. PCT/EP2020/025345
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/018413, PCT Pub. Date Feb. 4, 2021.
Claims priority of provisional application 62/880,790, filed on Jul. 31, 2019.
Prior Publication US 2022/0275886 A1, Sep. 1, 2022
Int. Cl. F16L 11/08 (2006.01); B29C 48/00 (2019.01); B29C 48/09 (2019.01); B29C 48/21 (2019.01); B29K 23/00 (2006.01); B29K 77/00 (2006.01); B29L 23/00 (2006.01)
CPC F16L 11/085 (2013.01) [B29C 48/022 (2019.02); B29C 48/09 (2019.02); B29C 48/21 (2019.02); B29K 2011/00 (2013.01); B29K 2023/16 (2013.01); B29K 2077/00 (2013.01); B29K 2995/0067 (2013.01); B29K 2995/0069 (2013.01); B29L 2023/005 (2013.01); Y10T 428/1393 (2015.01)] 28 Claims
OG exemplary drawing
 
1. A hose, comprising a multiplicity of layers including:
an innermost elastomeric layer directly bonded to a polyamide (PA) layer without an intervening adhesive,
wherein the innermost elastomeric layer is prepared from a first elastomeric composition comprising a blend of an ethylene propylene diene terpolymer rubber (EPDM) and a chloroprene rubber (CR), a phenylenedimaleimide, and a maleated compound.