Coated pipe comprising polyolefin layer with enhanced adhesion

摘要

The present invention relates to a structure comprising (i) a layer or profile (A) composed of a first material, and (ii) a polyolefin layer or profile (B) adjacent to layer or profile (A) which is composed of a composition comprising a base resin comprising a polyolefin, characterized in that the surface of any or both of layer or profile (A) and layer or profile (B) has/have been treated with a composition comprising an organosilicon compound before (A) and (B) are brought adjacent to each other, to a process for the production of such a structure, to an article, in particular a coated pipe, comprising such a structure and to the use of a composition comprising an organosilicon compound as an adhesion promoter in such a structure.

主权项

1. A structure consisting of
(i) a layer or profile (A) comprising a metal or metal alloy, and (ii) a polyolefin layer or profile (B) adjacent to layer or profile (A) which comprises a composition comprising a base resin comprising a polyolefin, characterized in that the surface of layer or profile (A) has been treated with a composition comprising an organosilicon compound before (A) and (B) are brought adjacent to each other; and wherein the polyolefin of the composition layer or profile (B) comprises from 0.02 to 1.0 mole % of adhesion promoting groups; wherein the structure is a pipe; and wherein the polyolefin of the composition layer or profile (B) is a terpolymer of ethylene, a vinyl silane, and a monomer selected from the group consisting of an anhydride functional monomer and maleic anhydride.