| abstract |
The invention relates to the use of a composition comprising at least one polyamide, at least one of said polyamides being a semi-crystalline copolyamide comprising at least one minority monomer unit resulting from the polycondensation of at least one diamine with at least one polymerised fatty acid, particularly a fatty acid dimer, or at least one diamine dimer with at least one dicarboxylic acid, or at least one amino acid dimer, or the mixtures thereof, as a sealing layer in a pipe containing a cooling liquid. |