Multilayer container comprising a polyethylene furanoate layer
A container includes an outer layer defining an exterior surface and including poly (ethylene terephthalate) and an inner barrier layer including semi-crystalline poly(ethylene furanoate) including semi-crystalline poly(ethylene furanoate) where the poly(ethylene furanoate) has a crystallinity X c of 3 to 40%.
1. A container comprising an outer layer defining an exterior surface and comprising poly(ethylene terephthalate) and an inner barrier layer comprising semi-crystalline poly(ethylene furanoate) wherein the poly(ethylene furanoate) has a crystallinity X c of 15 to 40%.
2. The container according to claim 1 , wherein the inner barrier layer comprising poly(ethylene furanoate) has an intrinsic viscosity which is higher than the intrinsic viscosity of at least the outer layer.
3. The container according to claim 1 , wherein a layer thickness of the inner barrier layer is in a range of 0.005 mm to 0.1 mm.
4. The container according to claim 1 , wherein the poly(ethylene furanoate) has a content of diethylene glycol of at most 2 wt %, based on the poly(ethylene furanoate).
5. The container according to claim 1 comprising an additional inner layer defining an interior surface and comprising poly(ethylene terephthalate), wherein the inner barrier layer is arranged between the outer layer and the additional inner layer.
6. The container according claim 1 , wherein the container is a bottle.
7. The container according to claim 1 , wherein the inner barrier layer comprising poly(ethylene furanoate) has an intrinsic viscosity which is at least 0.03 dL/g higher than the intrinsic viscosity of at least the outer layer.
8. The container according to claim 7 , wherein the inner barrier layer comprising poly(ethylene furanoate) has an intrinsic viscosity which is at least 0.05 dL/g higher than the intrinsic viscosity of at least the outer layer.
9. The container according to claim 8 , wherein the inner barrier layer comprising poly(ethylene furanoate) has an intrinsic viscosity which is at least 0.07 dL/g higher than the intrinsic viscosity of at least the outer layer.