Abstract: A method of forming relatively large objects, such as refrigerator liners, by a solid phase forming process from crystalline-type synthetic resins, such as polypropylene. The invention comprehends utilization of stretch forming, vacuum forming, and pressure forming techniques in combination with controlled heating of different portions of the billet to provide desired differential thicknesses in different portions of the liner. The invention further comprehends the provision of the liner with biaxial molecular orientation in portions thereof subject to shock impact forces.

Abstract: A packaging system designed for home appliances, comprises a bottom cap, a top cap, and a plurality of corner angles extending vertically between the bottom cap and top cap and having leg portions facially abutting outer surfaces of the appliance at vertical corners thereof. The corner angles are vertically corrugated and, are formed as synthetic resin extrusions. Each leg of the corner angles have a plurality of planar suface portions facially engaging the appliance surface. The legs of the corner angles define outer planar surfaces engaging complementary planar surfaces of the end caps for providing a stable assembly of the corner angles and end caps. The corner angles have a length greater than the height of the appliance so as to space the top cap above the top surface of the appliance. The packaged assemblies have sufficient rigidity to permit stacking one on top of the other.