Gel for producing low-refractive-index film, production method for gel for producing low-refractive-index film, coating material for producing low-refractive-index film, production method for coating material for producing low-refractive-index film, production method for laminate film, and production method for image display device
A technology of image display device and low-refractive index film, applied in coating, optics, instrument, etc., can solve the problems of poor strength of porous body film and inability to impart impact resistance
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Embodiment 1
[0200] The gel for producing a low-refractive-index film of the present invention was produced as follows, and a coating solution (the coating material for producing a low-refractive-index film of the present invention) was obtained using this. Moreover, the laminated film of this invention which laminated|stacked the low-refractive-index film of this invention on a base material was obtained further using the said coating liquid.
[0201] (1) 1.9 g of methyltrimethoxysilane (trade name KBM-13: manufactured by Shin-Etsu Chemical Co., Ltd.) was added to 4.4 g of DMSO, and stirred. 1.0 g of 0.01 mol / l oxalic acid aqueous solution was added dropwise to this mixed solution. Furthermore, this was stirred at room temperature for 30 minutes to hydrolyze the above-mentioned methyltrimethoxysilane.
[0202] (2) To the hydrolysis solution obtained by (1), additionally add 15.42 g of DMSO, 0.4 g of water, and 28% NH 3 The liquid obtained by mixing 0.76 g of the aqueous solution was gel...
Embodiment 2
[0208] Except that the solvent replacement step in the above (5) was carried out until the amount of residual DMSO in the gel cleaning solvent became 0.007 g / ml, the same procedure as in Example 1 was carried out to obtain a low-refractive index film production gel and coating. Liquid (liquid for producing low refractive index film).
[0209] Furthermore, it was the same as in Example 1 except that the coating liquid (liquid for producing a low-refractive index film) of this example (Example 2) was used instead of the coating liquid (liquid for producing a low-refractive index film) of Example 1. A low-refractive-index film (void layer) is obtained by operating in such a manner. The refractive index of this low refractive index film was 1.127.
Embodiment 3
[0211] Except that the solvent replacement step in the above (5) was carried out until the amount of residual DMSO in the gel washing solvent became 0.048 g / ml, the same procedure as in Example 1 was carried out to obtain a low-refractive index film production gel and coating. Liquid (liquid for producing low refractive index film).
[0212] Furthermore, it was the same as in Example 1 except that the coating liquid (liquid for producing a low-refractive index film) of this example (Example 3) was used instead of the coating liquid (liquid for producing a low-refractive index film) of Example 1. A low-refractive-index film (void layer) is obtained by operating in such a manner. The refractive index of this low refractive index film was 1.137.
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