Tubular structure with low ionic conductivity
AssigneeArkema France
InventorsMarjorie MARCOURT, Sébastien VAUTIER, Antoine GOUPIL
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Abstract
The present invention relates to a single-layer or multilayer tubular structure for transporting a coolant, said tube being intended for fuel cell cooling, comprising at least one inner layer (I) comprising at least one thermoplastic polymer chosen from a polyolefin, a thermoplastic vulcanizate (TPV), a fluoropolymer, a polyphenylene sulfide (PPS) and a polyphthalamide (PPA), said coolant having a dielectric conductivity of less than 30 μS/cm, as determined after aging of said single-layer or multilayer tubular structure in contact with said coolant for 168 hours at 80° C.
Claims18
A single-layer or multilayer tubular structure for transporting a coolant, said tube being intended for fuel cell cooling, comprising at least one inner layer (I) comprising at least one thermoplastic polymer chosen from a polyolefin, a thermoplastic vulcanizate (TPV), a fluoropolymer, a polyphenylene sulfide (PPS) and a polyphthalamide (PPA), said coolant having a dielectric conductivity of less than 30 μS/cm, as determined after aging of said single-layer or multilayer tubular structure in contact with said coolant for 168 hours at 80° C.
Dependencies are inferred from the claim text.