Invention Grant
US09276139B2 Polyimide film production method, polyimide film production apparatus, and polyimide film
有权
聚酰亚胺膜制造方法,聚酰亚胺膜制造装置和聚酰亚胺膜
- Patent Title: Polyimide film production method, polyimide film production apparatus, and polyimide film
- Patent Title (中): 聚酰亚胺膜制造方法,聚酰亚胺膜制造装置和聚酰亚胺膜
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Application No.: US14007079Application Date: 2012-03-19
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Publication No.: US09276139B2Publication Date: 2016-03-01
- Inventor: Takeshi Uekido
- Applicant: Takeshi Uekido
- Applicant Address: JP Yamaguchi
- Assignee: UBE INDUSTRIES, LTD.
- Current Assignee: UBE INDUSTRIES, LTD.
- Current Assignee Address: JP Yamaguchi
- Agency: Holtz, Holtz & Volek PC
- Priority: JP2011-068252 20110325
- International Application: PCT/JP2012/056989 WO 20120319
- International Announcement: WO2012/132986 WO 20121004
- Main IPC: B29D7/00
- IPC: B29D7/00 ; H01L31/02 ; B29C41/28 ; C08J5/18 ; H01L31/0392 ; B29K79/00 ; B29C35/08

Abstract:
A polyimide film which rarely undergoes the formation of bubbles, blisters or the like, even when heated to a high temperature; and a production method and a production apparatus for the polyimide film. The polyimide film production apparatus includes a support body, a cast furnace and a cure furnace, wherein the cure furnace is partitioned into multiple zones so that the temperature of a self-supporting film can be increased in a stepwise manner, and an infrared electric heater, which is disposed at a predetermined distance from the film, is arranged in a zone for heating the atmosphere of the self-supporting film to a temperature of 450° C. or higher on the upper surface side and/or the lower surface side of the self-supporting film. The polyimide production apparatus enables the production of a polyimide film which has a volatile content of 0.1 mass % or less after being heated at 450° C. for 20 minutes.
Public/Granted literature
- US20140058060A1 POLYIMIDE FILM PRODUCTION METHOD, POLYIMIDE FILM PRODUCTION APPARATUS, AND POLYIMIDE FILM Public/Granted day:2014-02-27
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