公开(公告)号：US10329658B2

公开(公告)日：2019-06-25

申请号：US14867711

申请日：2015-09-28

Applicant: Toppan Printing Co., Ltd.

Inventor： Toshiya Ishii

IPC: B32B27/08 ,  B32B27/00 ,  B32B9/04 ,  C23C14/08 ,  C08J7/04 ,  C08J5/18 ,  C23C14/02 ,  C23C14/30 ,  C08J3/28

Abstract: A gas barrier laminate of the present invention includes a biaxially-oriented polypropylene base and an aluminum oxide thin film formed on one surface of the biaxially-oriented polypropylene base. The biaxially-oriented polypropylene base has a plane orientation factor ΔP ranging from 0.005 to 0.020 according to phase-contrast measurement. Further, the gas barrier laminate of the present invention includes a biaxially-oriented polypropylene base and an aluminum oxide thin film formed on one surface of the biaxially-oriented polypropylene base. The biaxially-oriented polypropylene base has a molecular chain whose orientation angle measured by phase-contrast measurement ranges from 50° to 90° or from −50° to −90° relative to an MD direction.