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Method for evaluating performance of organic release agent, process for producing mold, and process for producing transparent film with finely roughened structure on surface

A technology of fine concave-convex structure and manufacturing method, which is applied in the direction of surface reaction electrolytic coating, semiconductor/solid-state device manufacturing, flat products, etc., can solve problems such as deterioration, difficulty in stably manufacturing transparent films, and insufficient surface release properties. The effect of stable production

Inactive Publication Date: 2014-09-17
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the organic mold release agent used in the treatment of the surface of the mold may deteriorate due to repeated use in the surface treatment of the mold or standing for a long time
Molds surface-treated by degraded organic mold release agents sometimes have insufficient surface mold release properties, and as a result, it is difficult to stably produce transparent films

Method used

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  • Method for evaluating performance of organic release agent, process for producing mold, and process for producing transparent film with finely roughened structure on surface
  • Method for evaluating performance of organic release agent, process for producing mold, and process for producing transparent film with finely roughened structure on surface
  • Method for evaluating performance of organic release agent, process for producing mold, and process for producing transparent film with finely roughened structure on surface

Examples

Experimental program
Comparison scheme
Effect test

specific example ）

[0068] Hereinafter, a case where the organic release agent is a fluorine compound having a hydrolyzable silyl group ["OPTOOL" series, manufactured by DAIKIN INDUSTRIES, Ltd.] will be described in more detail.

[0069] As an organic solvent for testing, from the viewpoint of increasing the difference in solubility (light transmittance when forming a mixture) between the normal "OPTOOL" series and the deteriorated "OPTOOL" series, N,N-Dimethylformamide is particularly preferred.

[0070] As the organic solvent for dilution, a fluorine-based organic solvent DURASURF HD-ZV (manufactured by Harves Co., Ltd.) is preferable from the viewpoint of the solubility of the organic mold release agent.

[0071] When the concentration of "OPTOOL" series in the mixture of the release agent solution and the organic solvent for the test is too high or too low, it is difficult to express the poor solubility corresponding to the deterioration. Therefore, the mixing ratio of 0.1% by mass release a...

Embodiment 1）

[0260] (Preparation of release agent solution)

[0261] Using OPTOOL DSX (manufactured by DAIKIN INDUSTRIES, Ltd.) as an organic mold release agent, and using DURASURF HD-ZV (manufactured by HARVES Co., Ltd.) as an organic solvent for dilution, a mold release agent concentration of 0.1 mass % was prepared. agent solution.

[0262] (Evaluation of release agent performance)

[0263] The prepared release agent solution was mixed with N,N-dimethylformamide (manufactured by Wako Pure Chemical Industries, Ltd., special grade, dielectric constant (25° C.): 36.71) at a volume ratio of 1:1 to form a mixture. The light transmittance of the mixture was measured with a spectrophotometer (manufactured by Hitachi, Ltd., U-3300). As a reference, a mixture of DURASURF HD-ZV and N,N-dimethylformamide in a volume ratio of 1:1 was used. As a measurement result, the light transmittance at a wavelength of 400 nm was 93%.

[0264] (manufacturing of molds)

[0265] The aluminum plate (purity 99...

Embodiment 2）

[0297] The release agent solution of Example 1 was not replaced, and the surface treatment of the mold main body a was repeated 10 times with the same release agent solution, and the release agent solution and the same N,N-dimethyl formazan as in Example 1 were measured. The light transmittance of the 1:1 volume ratio mixture of amides, as a result, the light transmittance at a wavelength of 400nm is 80%.

[0298] Except having used the above-mentioned release agent solution, it carried out similarly to Example 1, and transferred the fine uneven|corrugated structure of a mold to an acrylic film. The stripping can be carried out smoothly.

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Abstract

Disclosed is a process for producing a mold, the process comprising the following steps (I) to (III): (I) the step of producing a mold main body having a finely roughened structure on the surface; (II) the step of evaluating the performance of an organic release agent by a performance evaluation method for organic release agents; and (III) the step of treating the surface of the mold main body produced in the step (I) with an organic release agent, the performance of which has been rated as good in the step (II). The performance evaluation method for organic release agents comprises mixing an organic release agent with an organic test solvent and determining the performance of the organic release agent on the basis of whether or not the organic release agent is satisfactorily soluble in the organic test solvent.

Description

technical field [0001] The present invention relates to a method for evaluating the performance of an organic mold release agent, a method for manufacturing a mold, and a method for manufacturing a transparent film having a fine concave-convex structure on the surface. [0002] this application claims priority based on Japanese Patent Application No. 2009-291775 for which it applied to Japan on December 24, 2009, The content is used here. Background technique [0003] In recent years, it has been known that an article having a fine concave-convex structure with a period equal to or less than the wavelength of visible light on the surface exhibits an antireflection effect, a lotus effect, and the like. In particular, it is known that a fine concavo-convex structure called a moth-eye structure constitutes an effective anti-reflection means due to the continuous increase in the refractive index from that of air to that of the material of the article. [0004] As a method for p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/56B29C59/02H01L21/027B29L7/00
CPCB29C33/60C25D11/24B29C33/56B29C33/424B29C2035/0827B29C2059/023B29C59/046C25D11/04C25D11/045B29C37/0067
Inventor 小泽觉中井祐介
Owner MITSUBISHI CHEM CORP
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