A gas-impermeable elastic membrane including a co-polymeric gas-impermeable film including OH groups, positioned between two layers of a co-polymer containing blocks of polyamides and of polyesters, with a rubber coating on at least one of the two layers, as well as a method of manufacturing the membrane.

Uma membrana elástica gas-impermeable including uma película gas-impermeable co-co-polymeric including os grupos do OH, posicionados entre duas camadas de um co-polymer que contem blocos dos polyamides e dos poliésteres, com uma borracha que reveste ao menos em uma das duas camadas, as.well.as um método de manufaturar a membrana.