Pipes base on polyolefin resin for manufacturing pipelines and couplings for assembling them
AssigneeAtochem
InventorsPierre Bourjot, Marie-Anne Garnaud
Life of this patent
Estimating the term…
Abstract
Pipes and couplings for manufacturing pipelines comprising a wall having at least one layer of core material consisting essentially of a crosslinked polyolefin resin and at least one layer of surface material consisting essentially of a thermoplastic resin, said core material being crosslinked to a rate higher than 30%.
Claims9
Pipes for manufacturing pipelines of great length by end-to-end assembly, comprising a wall having at least one layer of core material consisting essentially of a crosslinked polyolefin resin and at least one layer of surface material consisting essentially of a thermoplastic resin, said core material being crosslinked to a rate higher than 30%.
Dependencies are inferred from the claim text.