Process for the Manufacture of a Leaktight Bladder of a Type IV Tank, and Type IV Tank

摘要

The present invention relates to a process for the manufacture of a bladder (2) of thermoplastic polymer for leaktightness to the gases of a type IV composite tank (1) and to a type IV tank (1) capable of being obtained by this process. The process of the invention comprises a stage of polymerization of a precursor monomer of said thermoplastic polymer to give said thermoplastic polymer in a rotating mold heated to a working temperature greater than or equal to the melting point of said monomer and lower than the melting point of said polymer, so as to form said bladder (2) by polymerization of said monomer coupled to rotomolding and without melting of the thermoplastic polymer obtained.