BENZINSCHLAUCH VERFAHREN UND VORRICHTUNG ZU DESSEN HERSTELLUNG

摘要

A fuel hose composed of a tubular internal layer of a fluororesin and a thermoplastic resin or rubber layer formed on the external periphery of the internal layer, wherein the internal layer is formed from a fluororesin wherein the ratio (F/C) of the number of the fluorine atoms (F) to that of the carbon atoms (C) is 1.6 or less and the surface layer of the internal layer comprises a treatment layer (A) wherein oxygen atoms are distributed and the F/C ratio is 1.12 or less while the ratio (OC) of the number of the oxygen atoms (O) to that of the carbon atoms (C) is 0.08 or above. The treatment layer (A) exhibits such a remarkable adhesiveness to the thermoplastic resin or rubber that the adhesive strength between the internal layer and the thermoplastic resin or rubber layer is as high as 1.2 N/mm or above.