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:
Aug. 03, 2010
Filed:
Jul. 12, 2007
Yutaka Fujita, Ibaraki, JP;
Kazuki Tsuchimoto, Ibaraki, JP;
Morimasa Wada, Ibaraki, JP;
Tomoyuki Senoo, Ibaraki, JP;
Takafumi Ooura, Ibaraki, JP;
Kentarou Ikeshima, Ibaraki, JP;
Tomoaki Masuda, Ibaraki, JP;
Yutaka Fujita, Ibaraki, JP;
Kazuki Tsuchimoto, Ibaraki, JP;
Morimasa Wada, Ibaraki, JP;
Tomoyuki Senoo, Ibaraki, JP;
Takafumi Ooura, Ibaraki, JP;
Kentarou Ikeshima, Ibaraki, JP;
Tomoaki Masuda, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Abstract
A method for producing a multilayer laminated film comprising: laminating a resin film having a moisture percentage of 10% by weight to 60% by weight with a first transparent film and a second transparent film each having a moisture percentage of 0.5% by weight to 5% by weight to be bonded to both sides of the resin film through an adhesive or pressure-sensitive adhesive layer interposed therebetween; wherein the laminating comprising steps of: passing the resin film and the first transparent film between a pair of a first metal roll and a first elastic roll in such a manner that the first transparent film is placed on the first metal roll side so that they are bonded to each other under pressure to form a laminated film; and then, using the laminated film without winding up it and passing the laminated film and the second transparent film between a pair of a second metal roll and a second elastic roll in such a manner that the second transparent film is placed on the second metal roll side so that they are bonded to each other under pressure to form a multilayer laminated film. The method can prevent bubbles from being formed between the resin film and the transparent film.