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:
Sep. 08, 1998
Filed:
Jun. 06, 1995
Hideharu Maro, Tokyo, JP;
Hideki Kodaira, Tokyo, JP;
Hiroshi Iwase, Tokyo, JP;
Yuji Komiya, Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
In the production of a laminated packaging material formed of a laminate comprising a base film, a silicon oxide layer and a sealing medium layer, the sealing medium layer is formed by laminating a thermoplastic resin to the silicon oxide layer by extrusion coating in a thickness of 30 .mu.m or less. At this time, in addition to the thermoplastic resin layer formed by extrusion coating, an additional thermoplastic resin film may be laminated to its outside so that they are put together to form a layer serving as the sealing medium layer. In this case, lamination is carried out to extrude a thermoplastic resin between the silicon oxide layer and the thermoplastic resin film in a layer thickness of 30 .mu.m or less. In a lengthwise pillow type laminated packaging material formed of a laminate comprising a sealing medium layer, a base film and a silicon oxide layer, a thermoplastic resin layer and an outer substrate are further laminated outside the silicon oxide layer at the same time the thermoplastic resin layer is formed, by extruding a thermoplastic resin between the outer substrate and the silicon oxide layer.