Patent ID: 7862872
Filing Date: 2011-01-04
Classification: B32B,Y10T

Abstract:
1. A multilayer structure comprising, in this order: a) a first layer (1) comprising a polyamide (A) or a polyamide (A)/polyolefin (B) blend having a polyamide matrix; b) optionally, a tie layer (2a); c) a polymeric layer (2) wherein the polymer comprises a graft copolymer having polyamide blocks, said graft copolymer comprising a polyolefin backbone and at least one polyamide graft from a polyamide having an amine end group, wherein: layer (1), optionally layer (2a), and layer (2) being successive and adhering to one another in their respective contact region, wherein the proportion by weight of the polyolefin backbone to the polyamide having an amine end group is 80/20 to 90/10, and wherein said multilayer structure is in the form of a tube.