FIELD: laminate tubes for transporting liquids such as motor oil.
SUBSTANCE: laminate tube contains (in radial direction from outer to inner side): outer layer 1 including polyamide, aliphatic polyamides formed by condensation of aliphatic diamine containing 6 - 12 C atoms and aliphatic diacid containing 9 - 12 C atoms, copolyamides 11/12 containing more than 90% of C11 links or more than 90% of C12 links; binding layer; layer 2 prepared of mixture polyamide A/polyolefin B and having polyamide matrix; binding layer; inner layer 3 prepared of polyamide selected among materials of outer layer, possibly similar or different one. All layers are applied successively and they are mutually joined in respective contact zones. Method for making such tubes is given in description of invention.
EFFECT: improved resistance of tubes against action of fuel and lubricants.
26 cl, 1 ex
