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Method for producing antireflection reinforced glass

A technology for strengthening glass and production methods, applied in optics, instruments, optical components, etc., can solve the problem of not too many implementations on an industrial scale

Active Publication Date: 2012-07-11
FUKUBI KAGAKU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method based on vacuum evaporation requires very expensive equipment, so there are not many implementations on an industrial scale

Method used

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  • Method for producing antireflection reinforced glass
  • Method for producing antireflection reinforced glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0249] Using the above-mentioned hollow silica sol dispersed in isopropyl alcohol (IPA), the hydrolyzate of tetraethoxysilane (TEOS) (containing 0.05N hydrochloric acid), aluminum acetylacetonate as a metal chelate compound, and isocyanate as an organic solvent Propanol (IPA), which were then mixed together to prepare a coating solution of the following composition.

[0250] Coating liquid composition:

[0251] TEOS hydrolyzate (containing 0.05N hydrochloric acid): 5.03 parts by weight

[0252] (TEOS: 2.72 parts by weight, hydrochloric acid: 2.31 parts by weight)

[0253] Hollow silica sol (containing IPA): 6.25 parts by weight

[0254] (silica sol: 1.25 parts by weight, IPA: 5.00 parts by weight)

[0255] IPA: 88.70 parts by weight

[0256] Aluminum acetylacetonate: 0.04 parts by weight

[0257] (TEOS hydrolyzate / hollow silica sol=69 / 31)

[0258] The above coating liquid was applied on float glass by dip coating, baked at 500° C. for 2 hours to form an antireflection fi...

Embodiment 2

[0263] Except for changing the composition of the coating solution as shown in Table 1, a sample glass plate on which an antireflection film was formed was prepared in the same manner as in Example 1, chemically strengthened in the same manner as in Example 1 and treated with the same method as in Example 1. The way to evaluate, so as to obtain the results shown in Table 1.

Embodiment 3

[0265] Except changing the glass substrate into white plate glass, a sample glass plate on which an antireflection film was formed was prepared in the same manner as in Example 1, chemically strengthened in the same manner as in Example 1 and evaluated in the same manner as in Example 1, Thus, the results shown in Table 1 were obtained.

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Abstract

Provided is a method for producing antireflection reinforced glass in which an antireflection film is formed, after which the glass is reinforced by chemical reinforcement using ion exchange. A method for producing an antireflective reinforced glass by forming an antireflection film on the surface of a glass substrate and then subjecting the glass substrate on which the antireflection film has been formed to chemical reinforcement using ion exchange, wherein the antireflection film comprises: (a) the hydrolysis condensate of a silicon compound represented by formula (1): Rn-Si(OR1)4-n (1)(where R is an alkyl or alkenyl group, R1 is an alkyl or alkoxyalkenyl group, and n is an integer between 0 and 2); (b) a silica sol, the grains of which comprise a hollow cavity on the inside and have a grain size of 5 to 150 nm; and (c) a metal chelate compound. The weight ratio (a / b) of silicon compound hydrolysis condensate (a) and silica sol (b) is within a range of 50 / 50 to 90 / 10, and the amount of metal chelate compound (c) is 20 parts by weight or less with respect to a total of 100 parts by weight of silicon compound hydrolysis condensate (a) and silica sol (b).

Description

technical field [0001] The present invention relates to a method of producing anti-reflection strengthened glass. Background technique [0002] Reinforced glass with increased strength has been widely used in window glass applications for automobiles and houses, and in recent years, has been further used in full-surface protection panels for electrostatic capacitance type touch panels, digital cameras, and displays for various mobile devices such as mobile phones . However, strengthened glass cannot be shaped such as cut, end-faced, or perforated after being strengthened. Therefore, strengthening treatment is performed after the glass substrate is processed into the shape of the final product. [0003] As a method of strengthening glass, a physical strengthening method by rapid cooling and a chemical treatment method by ion exchange are known. However, physical strengthening methods are not effective for thin glass substrates. Therefore, chemical treatment is usually use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/30C03C21/00G02B1/11C03C17/42G02B1/111G02B1/14
CPCC03C2217/478G02B1/11C03C21/002C03C2217/732G02B1/111C03C17/007C03C17/30C03C17/42C03C21/00
Inventor 长谷川弘照桥本博一
Owner FUKUBI KAGAKU IND