Coating processes – With post-treatment of coating or coating material – Solid treating member or material contacts coating
Reexamination Certificate
2011-01-11
2011-01-11
Kornakov, Michael (Department: 1714)
Coating processes
With post-treatment of coating or coating material
Solid treating member or material contacts coating
C118S325000, C118S410000, C118S411000, C118S419000, C427S355000
Reexamination Certificate
active
07867567
ABSTRACT:
In an aspect of the coating method according to the present invention, the lower limit decompression degree PS1at which a seam trouble occurs is obtained from the formula of the viscocapillary model. According to the aspect of the present invention, coating is performed by setting the Pbso as to satisfy PS1<P0−Pb≦PS1+0.2, and therefore, stepped unevenness can be effectively suppressed so that a seam trouble does not occur. It goes without saying that the aspect of the present invention can be applied to high viscosity/thick film coating, but it is effective especially in the case where a coating solution with low viscosity (for example, 0.005 Pa·s or lower) is coated to be an ultra-thin film (for example, 10 μm or less in the wet film thickness) where stepped unevenness easily occurs.
REFERENCES:
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Carvalho, Marcio et al., “Low-Flow Limit in Slot Coating: Theory and Experiments,” AIChE Journal, vol. 46, No. 10, pp. 1907-1917 (Oct. 2000).
Japanese Patent Office issued a Japanese Office Action dated Aug. 4, 2009, Application No. 2004-286025.
Hasegawa Youichi
Nojo Kazuhiko
Ogawa Tomonari
FUJIFILM Corporation
Kornakov Michael
Weddle Alexander
Young & Thompson
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