Patent ID: 9725202
Date: 2017-08-08
CPC Classifications: B32B,B65D

Claim:
1. A vessel comprising a floor and a seamless side wall coupled to the floor and arranged to extend upwardly from ground underlying the floor and to cooperate with the floor to define an interior product-storage region therebetween, wherein the floor and the seamless side wall cooperate to form a monolithic element comprising an inner polymeric layer forming a boundary of the interior product-storage region, an outer polymeric layer arranged to lie in spaced-apart relation to the inner polymeric layer to define a core chamber therebetween, and a middle cellular non-aromatic polymeric material located in the core chamber to lie between the outer polymeric layer and the inner polymeric layer so as to contact the inner polymeric layer and the outer polymeric layer, and wherein the inner polymeric layer, the outer polymeric layer, and the middle cellular non-aromatic polymeric material cooperate to provide means for maximizing a compressive strength of the vessel as tested by top-load testing and a shear strength of the vessel as tested by side-wall rigidity testing while minimizing a weight of the vessel.