Armstrong, Westerman, Hattori, McLeland & Naughton
Fuel hose
 The fuel hose of this invention is a fuel hose comprising a tubular fluororesin inner ply and, as laminated onto the peripheral surface thereof, a thermoplastic resin or rubber outer ply, the tubular fluororesin inner ply having been molded from a fluororesin with an F/C ratio, i.e. ratio of the number of fluorine atoms (F) to the number of carbon atoms (C), of not greater than 1.6 and the peripheral surface layer of the fluororesin inner ply having been modified into the following treated layer (A). PA1 (A) a layer with a distribution of oxygen atoms and having an F/C ratio, i.e. ratio of the number of fluorine atoms (F) to the number of carbon atoms (C), of not greater than 1.12 and an O/C ratio, i.e. ratio of the number of oxygen atoms (O) to the number of carbon atoms (C), of not less than 0.08. In this fuel hose of the invention, the treated layer (A) of the tubular fluororesin inner ply has a remarkably increased adhesive affinity for thermoplastic resin and rubber, with the result that the bond strength between the tubular fluororesin inner ply and the thermoplastic resin or rubber outer layer is as high as not less than 1.2 N/mm. 
Tokai Rubber Industries, Ltd.
B B B B B F B B B B B Y B Y B B F B B F B B B B B B B Y Y B B F B Y B
B32B B29K B29C B32B B29C F16L B32B B32B B32B B29L B29D Y10T B32B Y10T B29K B32B F16L B29C B32B F16L B29L B32B B32B B29C B32B B32B B32B Y10T Y10T B29C B32B F16L B29K Y10T B32B
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Kazuhiro Koyo Eiichi Katsuhiko Hiroaki
Kato Murakami Daikai Yokoe Ito