| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated tube excellent in alcohol/gasoline impermeability, interlaminar bonding properties, low temperature impact resistance and heat resistance. SOLUTION: The laminated tube is composed of at least two layers, that is (A) a layer (a) comprising a polyamide 11 and/or a polyamide 12 and (B) a layer (b) comprising a layered silicate-containing semi-aromatic polyamide composition having 0.1-30 pts.wt. of the layered silicate (B2) uniformly dispersed in its molecule with respect to 100 pts.wt. of a polyamide polymer (B1) composed of a dicarboxylic acid unit containing 50 mol% or above of a terephthalic acid unit and/or a naphthalenedicarboxylic acid unit with respect to the total dicarboxylic acid unit and 60 mol% or above of a 9-13C aliphatic diamine unit with respect to the total diamine unit. COPYRIGHT: (C)2005,JPO&NCIPI
|
