The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 1992
Filed:
Oct. 05, 1988
Applicant:
Inventors:
Assignee:
Mitsubishi Monsanto Chemical Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428215 ; 428451 ; 428448 ; 428500 ;
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.