Dunnage platform
A dunnage platform is in the general shape of a rectangular slab with legs extending form one side. The dunnage platform is made from an expanded polystyrene core. A chemical combination process is used to chemically combine portion of the core proximal to its surface with high impact polystyrene. In a first of two parts of the combination process, the core is placed in a forming mold with one of its two sides and two thirds of its thickness extending therefrom. A heated sheet of high impact polystyrene is brought into contact with the portion of the core extending from the mold. In a similar manner, the other of the two sides of the core is made to extend from the forming mold for contact with a heated sheet of high impact polystyrene.
1. A process for making a strengthened polystyrene load bearing structure, comprising the steps of:
providing a forming mold adapted to hold an expanded polystyrene core;
retaining said expanded polystyrene core within the mold with a first side of the core and at least half the thickness of the core extend therefrom;
heating a first high impact polystyrene sheet; and
chemically combining the first sheet with the first side of the core, wherein portions of said core that extend from said mold contact said sheet;
removing the core from the mold and reinserting the core in the mold, wherein a second side of the core and at least half the thickness of the core extend therefrom;
heating a second high impact polystyrene sheet; and
substantially surrounding the core with the second sheet.
2. The process of claim 1 , wherein the expanded polystyrene core is surrounded with the high impact polystyrene sheets.
3. The process of claim 1 , wherein the expanded polystyrene core is chemically combined with the high impact polystyrene sheets.
4. The process of claim 1 , further comprising the steps of:
placing an expanded polystyrene core in proximity of the high impact polystyrene sheets; and
applying reduced pressure to mold the heated high impact polystyrene sheet to the expanded core.
5. The process of claim 1 , further comprising the steps of:
placing an expanded polystyrene core in proximity of the high impact polystyrene sheets; and
moving said core into contact with said heated high impact polystyrene sheet; wherein said heated high impact polystyrene sheet remains fixed in position.