Patent ID: 8820559

Claim:
A container for shipping and storing flowable materials comprising: a vessel holding liquid, semi-solid, or solid flowable material, said vessel formed of six generally planar walls comprising a permeation barrier, said vessel having a generally rectangular cross-section as taken along at least one path from side to side, said six generally planar walls comprising: two side walls, two end walls, a bottom wall, and a top wall comprising a hatch configured to provide access to an interior of said vessel and to input said flowable material into said vessel; and a plurality of corner fittings securely attached to said vessel, wherein one or more of said corner fittings enables said container to be lifted, and wherein one or more of said corner fittings enables said container to be secured to one of a transport platform, transport vehicle, and another container; wherein said six generally planar walls have a density less than 3 grams per cubic centimeter; wherein said six generally planar walls have a tensile strength to density ratio of at least 80 megapascals per gram per cubic centimeter; and further comprising a plurality of connecting members to provide a frame structure to support said corner fittings, each of said connecting members extending from one of said corner fittings to another of said corner fittings.