Armstrong, Westerman & Hattori, LLP
Fuel hose
A fuel hose which satisfies low-permeability requirements in conformity with stringent regulations against vapor emission of fuel gases, is halogen-free and has excellent hydrolysis resistance, inter-layer adhesiveness and low-temperature flexibility. The fuel hose comprises: an innermost layer (1) comprising a thermoplastic polyester elastomer and having a flexural modulus in a predetermined range; an intermediate layer (2) comprising a polyester resin and provided around the innermost layer (1); and an outermost layer (3) comprising a thermoplastic polybutylene terephthalate elastomer and provided around the intermediate layer (2).
Tokai Rubber Industries, Ltd.
Y B F Y B
Y10S B32B F16L Y10T B32B
additional inventional inventional additional inventional
Hiroaki Hirokazu
Ito Kitamura