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. 22, 1994
Filed:
May. 27, 1992
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A process for producing a liquid-container material that includes a thermoadhesive resin film, a substrate sheet having a thin-film layer of an inorganic compound, such as a silicon oxide, and a paper substrate. The thermoadhesive resin film is formed by melt-extruding a thermoadhesive resin from an extruder die, and then cooled to a temperature at which the thermoadhesive properties inherent in the thermoadhesive resin film can be retained and at which no crack is produced in the thinfilm layer of an inorganic compound when the thermoadhesive resin film is laminated to the substrate sheet. The cooled thermoadhesive resin film is laminated to the substrate sheet to form a laminate, which is then laminated to the paper substrate. The thermoadhesive resin film may preferably include a non-adsorptive resin layer and a thermoadhesive resin layer. In this instance, the non-adsorptive resin layer is so provided as to be on the outside of the liquid-container material.