Patent ID: 8822001

Claim:
A plastic container having a multilayer wall comprising: at least one layer of a barrier resin comprising MXD6 polyamide adjacent to two layers of PET such that there is an interface between the MXD6 polyamide and each of the PET layers, wherein the at least one barrier resin also comprises an adhesion promoting agent blended with the MXD6 polyamide, wherein the adhesion promoting agent is at least one selected from either formula I or formula II: wherein: X is an MXD6 polyamide-compatible oligomeric or polymeric moiety selected from the group consisting of: a polycaprolactone modified phenoxy and a polyurethane; Y is a polyester-compatible oligomeric or polymeric moiety selected from the group consisting of: an aliphatic polyester and a co-polyester; n is an integer from 1 to 100; and m and p represent the mole fractions of the respective parts such that m+p=1, and wherein the adhesion promoting agent bonds the at least one layer of barrier resin with the PET layers across the interfaces.