Invention Grant
- Patent Title: Method for producing multilayer laminated film
- Patent Title (中): 多层层压膜的制造方法
-
Application No.: US11826112Application Date: 2007-07-12
-
Publication No.: US07767047B2Publication Date: 2010-08-03
- Inventor: Yutaka Fujita , Kazuki Tsuchimoto , Morimasa Wada , Tomoyuki Senoo , Takafumi Ooura , Kentarou Ikeshima , Tomoaki Masuda
- Applicant: Yutaka Fujita , Kazuki Tsuchimoto , Morimasa Wada , Tomoyuki Senoo , Takafumi Ooura , Kentarou Ikeshima , Tomoaki Masuda
- Applicant Address: JP Ibaraki-shi, Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Ibaraki-shi, Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2006-191765 20060712; JP2007-115605 20070425
- Main IPC: B29C65/52
- IPC: B29C65/52

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.
Public/Granted literature
- US20080011411A1 Method for producing multilayer laminated film Public/Granted day:2008-01-17
Information query