公开(公告)号：US11607865B2

公开(公告)日：2023-03-21

申请号：US16791603

申请日：2020-02-14

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Yuki Sugiyama ,  Satoru Ishida ,  Ryo Hirose

IPC: B32B7/12 ,  B32B15/085 ,  B32B15/09 ,  B32B15/20 ,  B32B27/32 ,  B32B27/36 ,  B65D65/40

Abstract: Provided is a laminate including a base material layer, an adhesive layer having a thickness in a range of 0.1 μm to 1.0 μm, and a non-oriented sealant layer having a thickness in a range of 10 μm to 40 μm and made of a cyclic polyolefin resin, wherein one main surface of the sealant layer constitutes an outermost surface of the laminate, the other main surface of the sealant layer is bonded to the base material layer via the adhesive layer, and an adhesion strength between the base material layer and the sealant layer is 0.8 N/15 mm or more.

公开(公告)号：US10723097B2

公开(公告)日：2020-07-28

申请号：US16451940

申请日：2019-06-25

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Ryo Hirose

IPC: B32B1/02 ,  B32B27/32 ,  B32B27/08 ,  B32B7/12 ,  B65D65/40 ,  B32B1/08

Abstract: A laminate according to an embodiment includes a base material layer, an adhesive layer provided on the base material layer and having a thickness of 0.1 μm to 1.0 μm, and the first sealant layer provided on the adhesive layer and made of a cyclic polyolefin resin having a glass transition temperature of 60° C. to 85° C. One main surface of the first sealant layer constitutes an outermost surface of the laminate. The other main surface of the first sealant layer is in contact with the adhesive layer or is adjacent to the adhesive layer with only the second sealant layer made of a low density polyethylene resin interposed therebetween. An adhesion strength between the base material layer and the first sealant layer is 0.8 N/15 mm or more.

公开(公告)号：US20200001584A1

公开(公告)日：2020-01-02

申请号：US16558664

申请日：2019-09-03

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Youko Koide ,  Satoru Ishida ,  Ryo Hirose ,  Yuki Sugiyama ,  Noe Sasaki

IPC: B32B27/32 ,  B65D77/20 ,  B32B15/085 ,  B32B15/20

Abstract: Provided is a laminate including a base material layer and a sealant layer. The sealant layer includes a first layer containing a cyclic olefin resin and a second layer interposed between the base material layer and the first layer and containing a low density polyethylene resin. A ratio of a thickness of the first layer to a thickness of the second layer is in a range of 1:2 to 5:1. The low density polyethylene resin has a melt flow rate (MFR) at 190° C. and a load of 21.168N of 3.6 g/10 min to 13.0 g/10 min. The low density polyethylene resin has a density in a range of 0.915 g/cm3 to 0.925 g/cm3. Each of the first and second layers has a thickness of 5 μm or more, and the second layer has a thickness of 25 μm or less.