公开(公告)号：US20240191433A1

公开(公告)日：2024-06-13

申请号：US18286192

申请日：2022-04-13

申请人： Billerud Aktiebolag (publ)

发明人： Olivia Markbo ,  Mats Alden ,  Ulf Nyman ,  Fredrik Nordstrom

IPC分类号： D21H17/36 ,  B65D65/40 ,  B65D65/42 ,  D21H11/04 ,  D21H19/12 ,  D21H23/52 ,  D21H23/72 ,  D21H27/10

CPC分类号： D21H17/36 ,  B65D65/40 ,  B65D65/42 ,  D21H11/04 ,  D21H19/12 ,  D21H23/52 ,  D21H23/72 ,  D21H27/10 ,  B65D2565/382 ,  B65D2565/387

摘要： There is provided a high-density paper having a grammage measured according to ISO 536:2012 of 30-75 g/m2 and a density measured according to ISO 534:2011 above 1000 kg/m3 and wherein the high-density paper is impregnated on each side with 0.3-4.0 g/m2, such as 0.5-3.0 g/m2, of a polymer selected from the group consisting of polyvinyl alcohol (PVOH), ethylene vinyl alcohol (EVOH), carboxymethylated cellulose (CMC), nanocrystalline cellulose (NCC) and carboxy methyl starch (CMS).