| 摘要 |
<p>The present invention relates to a structure comprising at least one layer of the following composition, which comprises, by weight, the total being 100%:
- 50 to 100% of at least one polyamide A1 of formula X.Y/ Z or 6.Y2/Z in which:
. X denotes the residues of an aliphatic diamine having from 6 to 10 carbon atoms,
. Y denotes the residues of an aliphatic dicarboxylic acid having from 10 to 14 carbon atoms,
. Y2 denotes the residues of an aliphatic dicarboxylic acid having from 15 to 20 carbon atoms and
. Z denotes at least one unit chosen from the residues of a lactam, the residues of an ±,É-aminocarboxylic acid, the unit X1, Y1 in which X1 denotes the residues of an aliphatic diamine and Y1 denotes the residues of an aliphatic dicarboxylic acid, the weight ratios Z/(X+Y+Z) and Z/(6+Y2+Z) being between 0 and 15%;
- 0 to 40% of a plasticizer;
- 0 to 50% of an impact modifier; and
- 0 to 50% of a polyamide A2. This structure is useful for making devices for storing or transferring fluids. The invention also relates to these use and devices.</p> |
