公开(公告)号：US20230159240A1

公开(公告)日：2023-05-25

申请号：US18095148

申请日：2023-01-10

Applicant: TOPPAN INC.

Inventor： Kazumi AOKI

IPC: B65D65/40 ,  B32B27/36 ,  B32B27/30 ,  B32B7/12 ,  B32B27/40 ,  B32B27/08 ,  B32B27/10 ,  B32B7/02

CPC classification number: B65D65/40 ,  B32B7/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/10 ,  B32B27/30 ,  B32B27/36 ,  B32B27/40 ,  B32B2255/10 ,  B32B2255/12 ,  B32B2255/20 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2307/31 ,  B32B2307/308 ,  B32B2307/514 ,  B32B2307/702 ,  B32B2307/704 ,  B32B2307/732 ,  B32B2307/7242 ,  B32B2439/46

Abstract: A laminated sheet includes a substrate having sheet shape and a sealant layer provided on the substrate. The sealant layer includes a first resin layer containing a crystalline polyester, and a second resin layer located between the first resin layer and the substrate and containing no polyester, the second resin layer is joined to the substrate and the first resin layer, and a crystallization temperature of the crystalline polyester is 120° C. or higher and 150° C. or lower.