Barrier enhanced pet multilayer container

A multilayer container, the container comprising:

• an outer layer defining an exterior surface, an inner layer defining an interior surface and an interior space, and optionally a barrier layer disposed between the outer layer and the inner layer, wherein the outer layer comprises a polyester, and the inner layer or the barrier layer comprises a 2,5-furandicarboxylate polyester or co-polyester.

A preform comprising:

• an outer layer defining an exterior surface and an inner layer defining an interior surface, wherein the outer layer comprises a polyester and the inner layer comprises a 2,5-furandicarboxylate polyester or co-polyester polymer.

A 2,5-furandicarboxylate polyester or co-polyester polymer selected from poly(neopentylene-2,5-furandicarboxylate) (PNPGF);

• poly(ethylene-2,5-furandicarboxylate) with 1,8-naphthalene dicarboxylate (PEF-PEN);
• poly(1,4-phenylene-2,5-furandicarboxylate) (PCHF);
• and poly(1,2-dimethylphenylene-2,5-furandicarboxylate) (PDMFF).

A polyester multilayer bottle comprising at least one layer of an FDCA (2,5-furandicarboxylate)-based polyester, copolyester, or polyester or copolyester blend with an oxygen permeability less than about 600 cm3 (STP)·mil/m2·d·atm at 23° C. or a carbon dioxide permeability less than about 170 cm3 (STP)·mil/m2·d·atm at 23° C.