公开(公告)号：US20250026110A1

公开(公告)日：2025-01-23

申请号：US18713880

申请日：2022-11-28

Applicant: Stora Enso OYJ

Inventor： Kimmo Nevalainen ,  Inkeri Perttu-Ukonaho ,  Esa Suikkanen ,  Minna Vuorimaa ,  Timo Lankinen ,  Anna Veijalainen

IPC: B32B21/08 ,  B29C48/00 ,  B29C48/153 ,  B29C48/21 ,  B29K23/00 ,  B29L31/00 ,  B32B37/15

Abstract: The present invention relates to a packaging material comprising a paperboard substrate comprising a first and a second side, an extrusion coated polymer layer attached to the first side, which polymer layer comprises polyethylene (PE) with a melt index in the range of 7-10 g/10 min, as measured using ASTM D1238, wherein the polymer layer has a grammage of less than 12 gsm, preferably less than 10 gsm. The invention further relates to a method of producing such a packaging material and a cup being made from or comprising said packaging material.