Atofina

Daniel Siour

Olivier Denizart

Bruno Echalier

The invention relates to pipes for conveying drinking water, including a main layer made of polyolefin covered on the outside with a layer of a thermoplastic polymer which is impervious to hydrocarbons, such as, for example, polyamides, polyvinylidene fluoride, ethyl/vinyl alcohol copolymers or polyesters. These pipes are particularly useful for pipes buried in soils that may be contaminated with hydrocarbons.

Pipes for conveying drinking water

The invention relates to a pipe with an internal layer, which includes a mixture of polyamide and of polyolefin with a polyamide matrix, an external layer, which includes a polyamide, and optionally an EVOH layer between the said external and internal layers. These pipes are particularly impervious to alcohol-containing petrols.

Growing community of inventors

Sartrouville, France

Daniel Siour