US Patent Issued to ALEPH on June 10 for "Method for manufacturing a film comprising cavities with determination of stretch, density, thickness and/or porosity profiles of the film" (French Inventor)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,171, issued on June 10, was assigned to ALEPH SAS (La Motte Servolex, France).

"Method for manufacturing a film comprising cavities with determination of stretch, density, thickness and/or porosity profiles of the film" was invented by Jan Gaudaen (Aix les Bains, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a film including cavities and formed from a polymer in which a cavitating agent is dispersed, the method including a step of extruding the polymer through an extrusion die equipped with adjustment actuators for adjusting thickness of the extruded film, and a step of stretching the film, as well as establishing a...