US Patent Issued to Stora Enso on Nov. 3 for "3D shaped packaging product from an air-laid blank" (Swedish Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,780,523, issued on Nov. 3, was assigned to Stora Enso OYJ (Helsinki).

"3D shaped packaging product from an air-laid blank" was invented by Maria Tornblom (Halmstad, Sweden) and Martin Malmqvist (Halmstad, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A 3D shaped packaging product (20) for cushioning and/or thermal insulation of packaged goods is formed by hot pressing at an average pressure equal to or below 200 kPa of an air-laid blank (10) comprising natural fibers at a concentration of at least 70% by weight of the air-laid blank (10) and a thermoplastic polymer binder at a concentration selected within an interval of from 4 up to 30% by weigh...