Patent ID: 8153714

Claim:
A process for producing polyolefin articles comprising a polyolefin component and an ethylene-vinyl alcohol copolymer present in an amount from 2 to 60% by weight with respect to the total weight of the polyolefin component and the ethylene-vinyl alcohol copolymer, wherein the polyolefin component is melted and mixed with the ethylene-vinyl alcohol copolymer in presence of a stabilizing composition comprising: a) at least one acid scavenger in an amount equal to or higher than 300 ppm by weight, with respect to the weight of the polyolefin component; b) at least one phenolic antioxidant in an amount equal to or higher than 1100 ppm by weight, with respect to the weight of the polyolefin component; and c) at least one phosphorus-containing melt stabilizer, in an amount equal to or higher than 1000 ppm by weight with respect to the polyolefin component, the polyolefin component comprising: (i) a propylene polymer, and (ii) a functionalized polyolefin present in an amount from 1 to 10% by weight with respect to the total weight of the polyolefin component.