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:
Jul. 31, 1990
Filed:
Aug. 25, 1988
Kenichi Ishikawa, Yokohama, JP;
Koji Kurita, Yokohama, JP;
Satoru Fukawa, Yokohama, JP;
Kenji Maeda, Yokohama, JP;
Asahi Glass Company Ltd., Tokyo, JP;
Abstract
A method for press-bonding a laminated assembly of a sheet material and a plastic film, which comprises providing on at least the peripheral portion of the sheet material and/or the plastic film a primer layer capable of adhering the sheet material and the plastic film at room temperature, stacking the sheet material and the plastic film to form a laminated assembly, evacuating a first vacuum compartment defined by the sheet material and the plastic film to a vacuumed condition and at the same time, evacuating a second vacuum compartment enclosing at least the plastic film side of the first compartment, to a vacuumed condition, and then introducing atmospheric air into the second vacuum compartment to release it from the vacuumed condition and thereby to press-bond the plastic film to the sheet material.