Composite plastic container

Claim 1

A THERMOPLASTIC ARTICLE OF MANUFACTURE SUITABLE FOR DIRECTLY RECEIVING CONTENNTS USABLE FOR HUMAN CONSUMPTION, THE SAID CONTAINER COMPRISING A UNITARY CIRCULAR SIDE WALL, A BOTTOM SEAMLESSLY FULLY INTEGRATED WITH SAID SIDE WALL, AND A CIRCUMFERENTIAL LIP, THE SAID CONTAINER CHARACTERIZED AS HAVING A SIDE WALL IN A FRUSTO-CONICAL SHAPE, TAPERING DOWNWARDLY FROM A LARGER DIAMETER ADJACENT TO ITS UPPER END, SEAMLESSLY, FULLY INTEGRATED WITH SAID LIP, THE SAID SIDE WALL TAPERING TO A SMALLER DIAMETER AND SEAMLESSLY, FULLY INTEGRATED WITH SAID BOTTOM END, THE SAID SIDE WALL, BOTTOM AND LIP BEING SUBSTANTIALLY FREE FROM DEFECTS CAUSED BY WRINKLES, FOLDS AND BREAKS IN ITS STRUCTURE, THE SAID CONTAINER HAVING AN OUTER SHELL OF A POLYSTYRENE FOAM ORGANIC MATERIAL, AND AN INTERIOR LINER OF A HARD, SMOOTH, SCUFFRESISTANT, ENAMEL-LIKE POLYSTYRENNE SOLID MATERIAL, SAID OUTER SHELL AND LINER BEING INTEGRALLY UNITED WITHOUT INTERPOSITION OF AN ADHESIVE, THE SAID CIRCUMFERENTIAL LIP BEING FINISHED EXPOSING THE HARD, ENAMEL-LIKE INTERIOR LINER IN A CIRCUMFERENTIAL PARTIAL ANNULUS AT THE SAID RECEIVING OPENING OF SAID FRUSTO-CONICAL CONTAINER, THE SAID SIDE WALL CHARACTERIZED BY HAVING ONE LAYER OF SAID FOAM MATERIAL, AND ONE LAYER OF AN INTERIOR MATERIAL OF A UNITARY, SEAMLESS STRUCTURE HAVING THE SAID OUTER FOAM MATERIAL AND THE SAID INTERIOR MATERIAL THERMALLY, COMPOSITELY UNITED, THE UNITARY SIDE WALL CONSTRUCTION BEING SELF-SUPPORTING AND SUBSTANTIALLY EXPANDINGLY, NON-BULGING WHEN SAID CONTAINER IS IN A LOADED CONDITION, SAID SIDE WALL BEING PAPERLIKE AND OF A THICKNESS OF FROM ABOUT 0.015" TO ABOUT 0.022", THE SAID SIDE WALL BEING FURTHER CHARACTERIZED BY THE PARTIAL COMPRESSIVE FLEXIBILITY AND RECOVERY OF ORIGINAL SHAPE WITHOUT BREAKING AND DESTROYING THE IMPERMEABILITY