US Patent Issued to Advan Packaging Systems on Sept. 16 for "Polypropylene-based sheet materials and methods for making the same" (Illinois Inventor)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,343, issued on Sept. 16, was assigned to Advan Packaging Systems LLC (Columbia, S.C.).

"Polypropylene-based sheet materials and methods for making the same" was invented by Kenneth J. VanderVelde (Chicago).

According to the abstract* released by the U.S. Patent & Trademark Office: "Polypropylene-based sheet materials such as a polypropylene-based foam sheet material and a multilayered sheet material including the polypropylene-based foam as a layer are disclosed. The multilayered sheet material may include the polypropylene-based foam layer sandwiched between and adhered to outer polypropylene-based polymer films to provide a multilayered sheet material. The polypropylene-based ...