公开(公告)号：US20240181759A1

公开(公告)日：2024-06-06

申请号：US18416174

申请日：2024-01-18

Applicant: TOPPAN INC.

Inventor： Noriko SASAKI

IPC: B32B27/08 ,  B32B27/16 ,  B32B27/32 ,  B32B27/36 ,  B65D33/00 ,  B65D65/40 ,  B65D65/42

CPC classification number: B32B27/08 ,  B32B27/16 ,  B32B27/32 ,  B32B27/36 ,  B65D33/00 ,  B65D65/40 ,  B65D65/42 ,  B32B2250/03 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/20 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2307/518 ,  B32B2307/702 ,  B32B2307/704 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2439/46 ,  B65D2565/387

Abstract: A packaging material comprising a substrate layer, an intermediate layer, and a sealant layer, the intermediate layer comprising an intermediate layer substrate layer and a barrier coat layer containing a carboxylic acid polymer and a polyvalent metal compound, the intermediate layer being laminated so that the barrier coat layer is on a substrate layer side, all of the substrate layer, the intermediate layer substrate layer, and the sealant layer being polyolefin resin layers or polyester resin layers.