A continuous extrusion process will be studied for the elaboration of structured cellular polymer foams, in the micro to nano cellular range, i.e cell (pore) sizes lower than 1 micrometer, through foaming in a supercritical fluid. Also, these foams will be multifunctional materials, and will exhibit several properties such as a very low thermal conductivity, or a high electrical conductivity, rigidity vs. damping, toughness, or even original acoustic properties. The edyFICE project aims at controlling a continuous extrusion process for innovative, cellular, (nano) structured, multifunctional materials responding to the challenge of mass reduction (density lowering), and homogeneous lowering of pore sizes of cellular polymers. This methodology will enable and act as a “micro / nano organic foams platform”.