| abstract |
The present invention relates to a gas storage tank with a liner comprising a high viscosity polyamide composition containing a branched polyamide and an impact modifier, in particular a storage tank of CNG, methane and / or hydrogen, and a process for producing said tank. More specifically, the composition comprises a polyfunctional monomer comprising at least three reactive functional groups to form two different kinds of amide functional groups, a difunctional monomer commonly used in the preparation of linear polyamides, and optionally between bifunctional monomers. Random tree type copolyamides produced in the reaction of |