ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,755, issued on Aug. 4, was assigned to MATERIAS S.r.l. (Naples, Italy).
"Process for preparing layered foamed polymeric materials" was invented by Ernesto Di Maio (Naples, Italy) and Luigi Nicolais (Ercolano, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention concerns layered foamed polymeric materials lacking discontinuities at the interface between the layers and a preparation process thereof comprising the following steps: -providing a foamable polymeric material; -solubilising said one or more foaming agents in the foamable polymeric material under pressure and at a temperature greater than 20deg C.; and -releasing the pre...