| abstract |
The present invention relates to the use of a layer comprising a composition comprising a copolyamide of the formula X / 10.T / Y for transferring a heat transfer fluid in a vapor compression circuit, wherein X comprises from 8 to 18 carbon atoms Or a lactam, or a motif X 1 .X 2 , which represents a residue resulting from the condensation of an aliphatic diamine containing from 6 to 18 carbon atoms and a (cyclo) aliphatic diacid comprising from 6 to 18 carbon atoms, ; 10. T represents a residue from the condensation of decane diamine and terephthalic acid; Y represents a residue from the condensation of an aliphatic diamine and an aromatic diacid comprising 9 to 14 carbon atoms and Y is different from the motif 10.T; 10. The molar ratio of the T motif is more than 0%. |