Packaging for reclaiming scrap metal

Claim 1

A burn-retardant packaging means for introducing metal scrap into a metal-melting furnace while minimizing entrainment of the metal scrap in the furnace gases, said packaging means defining a container for enclosing metal scrap therein and comprising a bottom wall; a plurality of side walls joined to said bottom wall; a top wall comprising a plurality of closure flaps hingedly joined to said side walls; said bottom wall, said plurality of side walls, and said top wall defining a complete enclosure and being made from more than two laminae of fiberboard wherein the individual laminae are bonded to each other by substantially uniform and continuous layers of a laminating agent comprising an intumescent adhesive, said layers of laminating agent being substantially coextensive with the bonded surfaces of said laminae; said intumescent adhesive layers expanding in the presence of heat when said packaging means is placed in said furnace and forming layers of a burn-retarding foam between said individual laminae, thereby insulating the metal scrap in said container to prevent premature exposure of said metal scrap to the heat in said furnace.