Title:
PROCESS FOR PRODUCING COATED SHEET, OPTICAL FUNCTION LAYER, OPTICAL FILM AND IMAGE DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2005/089958
Kind Code:
A1
Abstract:
A process for producing a coated sheet, in which while resolving streaked defects occurring on the center of coating film, a coating film of reduced film thickness fluctuation can be stably produced on especially a base material film of large area; an optical function layer produced by the process; and utilizing the same, an optical film and image display apparatus. There is provided a process characterized in that the Re number in piping for introduction of a coating liquid into a die is ≤25. Further, the process is characterized in that the pressure at supply port of a coating liquid for introduction into a die is in the range of 0.5 to 5 kPa. It is preferred that the viscosity of coating liquid be in the range of 1 to 10 mPa·s. It is also preferred that the step of applying a coating liquid onto the surface of a support be followed by a step of drying the applied coating liquid and that the thickness of coating film after the drying be in the range of 1 to 20 µm.
Inventors:
INOUE RYUUICHI (JP)
OOTA MIE (JP)
KOMATSUBARA MAKOTO (JP)
TSUCHIMOTO KAZUKI (JP)
OOTA MIE (JP)
KOMATSUBARA MAKOTO (JP)
TSUCHIMOTO KAZUKI (JP)
Application Number:
PCT/JP2005/004777
Publication Date:
September 29, 2005
Filing Date:
March 17, 2005
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
INOUE RYUUICHI (JP)
OOTA MIE (JP)
KOMATSUBARA MAKOTO (JP)
TSUCHIMOTO KAZUKI (JP)
INOUE RYUUICHI (JP)
OOTA MIE (JP)
KOMATSUBARA MAKOTO (JP)
TSUCHIMOTO KAZUKI (JP)
International Classes:
B05D1/26; B05D7/04; G02B5/30; (IPC1-7): B05D7/04; B05D1/26; G02B5/30; G02F1/3363
Foreign References:
| JP2003340352A | 2003-12-02 | |||
| JP2003026000A | 2003-01-29 | |||
| JPH09248509A | 1997-09-22 | |||
| JPH04271016A | 1992-09-28 |
Attorney, Agent or Firm:
Suzuki, Takao (1-20 Nishinakajima 7-chome, Yodogawa-k, Osaka-shi Osaka 11, JP)
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