Fuel tank or filler pipe for this tank

Abstract

Fuel tank or filler pipe for this tank comprising a multilayer wall constituted at least of one layer based on a reinforced thermoplastic composition and of one inner layer, intended to be in contact with the fuel, based on a non-reinforced thermoplastic composition. Use of such a tank/pipe in a hybrid vehicle.

1 . A fuel tank or filler pipe for a fuel tank comprising a multilayer wall, said multilayer wall comprising at least one layer based on a reinforced thermoplastic composition and one inner layer, intended to be in contact with a fuel, based on a non-reinforced thermoplastic composition. 
     
     
         2 . The tank or pipe according to  claim 1 , being produced by coextrusion-blow molding. 
     
     
         3 . The tank or pipe according to  claim 1 , wherein the reinforced thermoplastic composition contains a fibrous reinforcement. 
     
     
         4 . The tank or pipe according to  claim 3 , wherein the fibrous reinforcement comprises glass fibers. 
     
     
         5 . The tank or pipe according to  claim 4 , wherein the glass fibers content of the reinforced layer is between 10 and 50%. 
     
     
         6 . The tank or pipe according to  claim 1 , wherein the multilayer wall of said tank or said pipe comprises a barrier layer between two high-density polyethylene (HDPE) layers, or is in direct contact with the inside of the tank or of the pipe. 
     
     
         7 . The tank or pipe according to  claim 1 , wherein the multilayer wall of said tank or said pipe comprises a layer based on recycled plastic. 
     
     
         8 . The tank or pipe according to  claim 7 , wherein the reinforcement is included in an intermediate layer based on recycled plastic. 
     
     
         9 . The tank or pipe according to  claim 8 , comprising six layers: an inner layer (I) based on non-reinforced high-density polyethylene (HDPE), a first layer of adhesive (A1), a layer comprising a barrier resin (B), a second layer of adhesive (A2), a layer based on recycled resin (R) comprising a reinforcement, and an outer layer (E) based on HDPE. 
     
     
         10 . A method comprising using the fuel tank or filler pipe for fuel tank according to  claim 1  as a fuel tank/pipe for a hybrid vehicle.