公开(公告)号：US5100720A

公开(公告)日：1992-03-31

申请号：US253756

申请日：1988-10-05

Applicant: Tsutomu Sawada ,  Shinichi Ohashi ,  Shigenobu Yoshida

Inventor： Tsutomu Sawada ,  Shinichi Ohashi ,  Shigenobu Yoshida

IPC: C08J7/04 ,  C08J7/06

CPC classification number: C08J7/045 ,  C08J7/06 ,  C08J2329/04 ,  Y10T428/24967 ,  Y10T428/31667 ,  Y10T428/31855

Abstract: A gas barrier laminated film comprising a thermoplastic film having a polar group and a thin silicon oxide layer formed on the one side of the thermoplastic film in which the bond energy of silicon in the silicon oxide layer varies along the direction of the thickness of the layer and becomes large in the vicinity of the plastic film. It has a high level of gas barrier properties for steam and oxygen and is suitable for a variety of packaging materials.