CONTROLLED FORMATION OF CELLULAR MATERIAL AND APPARATUS

摘要

A hardened cellular material formed by stretching a stretchable material is disclosed. Fluid is allowed to enter softened stretchable material through apertures in a stretching surface to define voids at locations in the stretchable material at locations defined by the apertures. The stretchable material is then hardened with voids at locations controlled/defined by the apertures.

主权项

1. A method of forming a cellular slab, comprising:
providing two opposing surfaces, with at least one of said surfaces comprising apertures extending therethrough; providing a softened stretchable material between said two opposing surfaces, wherein said stretchable material adheres to said two opposing surfaces; contacting said softened stretchable material with said two opposing surfaces; moving at least one of said two opposing surfaces away from the other to stretch said softened stretchable material between said two opposing surface, while allowing a fluid to enter said softened stretchable material through said apertures to define voids in said stretchable material at locations defined by said apertures; solidifying said stretchable material to form said cellular slab.