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Infrared shielding film-coated glass plate and production process therefor

A manufacturing method and a technology for a blocking layer, which are applied to a glass plate with an infrared blocking layer and the manufacturing field thereof, can solve the problems of low chemical resistance and cannot be applied, and achieve high radio wave transmittance, simplified manufacturing method, and visible light transmission. high rate effect

Inactive Publication Date: 2008-08-06
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on the other hand, since the chemical resistance of the film containing alkali metal oxide is low, it cannot be applied to parts such as automobile door glass panels and window glass panels that are exposed to severe external environments for a long time.

Method used

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  • Infrared shielding film-coated glass plate and production process therefor

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0060] Measure the xylene dispersion A containing 30% by mass c light source, the powder color on the xy chromaticity coordinates under 2° field of view is (x, y)=(0.353, 0.374) and the primary particle diameter is 55nm ITO microparticles 0.43g, containing 20 mass% chemical formula-SiR 1 2 -NR 2 -SiR 1 2 - Medium R 1 =H and methyl, R 2 0.90 g of a xylene solution B of a partially organic polysilazane (manufactured by AZ-Electronics Co., Ltd., trade name: Aquamica NN-310) of H, and diisopropoxybis(ethyl acetoacetate)titanium (manufactured by Matsumoto Pharmaceutical Co., Ltd., brand name: TC-750) 0.67 g, these were mixed at room temperature, and stirred for 10 minutes to obtain a dispersion liquid C.

[0061] High-heat ray-absorbing green glass (Tv: 72.8%, Te: 45.2%, transmittance of light with a wavelength of 2.0 μm: 47.1%, 10 cm in length, 10 cm in width, and 3.5 cm in thickness, produced by Asahi Glass Co., Ltd. The obtained dispersion liquid C was coated by spin coat...

example 2

[0065] 0.52 g of the above-mentioned dispersion A, 1.51 g of the above-mentioned solution B, and 0.91 g of the above-mentioned diisopropoxybis(ethylacetoacetate)titanium were weighed, mixed at room temperature, and stirred for 10 minutes to obtain a dispersion D.

[0066] A glass plate with an infrared blocking layer was obtained in the same manner as in Example 1, except that dispersion D was used instead of dispersion C, and the thickness of the fired infrared blocking layer was changed as shown in Table 1. Table 1 shows the property evaluation results of the obtained glass plate with an infrared blocking layer.

example 3

[0068] 0.48 g of the above-mentioned dispersion A, 1.51 g of the above-mentioned solution B, and 0.99 g of the above-mentioned diisopropoxybis(ethylacetoacetate)titanium were weighed and mixed at room temperature, followed by stirring for 10 minutes to obtain a dispersion E.

[0069] A glass plate with an infrared blocking layer was obtained in the same manner as in Example 1, except that the dispersion E was used instead of the dispersion C, and the thickness of the infrared blocking layer after firing was changed as shown in Table 1. Table 1 shows the property evaluation results of the obtained glass plate with an infrared blocking layer.

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Abstract

The invention provides a glass plate with an infrared blocking layer and a manufacturing method thereof. The glass plate with an infrared blocking layer has excellent visible light transmittance and radio wave transmittance, low infrared transmittance, and can be applied to window glass for automobiles Plates and other parts requiring mechanical durability. It is characterized in that there is an infrared blocking layer with a layer thickness of 100-1500 nm on the surface of the glass substrate, and the infrared blocking layer has ITO particles with an average primary particle diameter of 100 nm or less dispersed in a substrate containing silicon oxide and titanium oxide Structure.

Description

technical field [0001] The present invention relates to a glass plate provided with an infrared blocking layer and a method for its manufacture. Background technique [0002] In recent years, in vehicle glass or architectural glass, infrared ray-coated glass has been adopted for the purpose of blocking infrared rays entering the car or building, reducing the temperature rise in the car or building, and the load on air-conditioning equipment. Glass for the barrier film (for example, Patent Document 1). In addition, automotive glass and architectural glass are often required to have a high visible light transmittance in order to ensure safety and visibility. [0003] So far, many methods of adding infrared blocking performance to a glass plate to improve heat ray blocking performance have been proposed. For example, it has been proposed and put into practical use to add infrared-blocking performance to the glass plate itself by adding infrared-absorbing ions to the glass, or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/23C03C4/00
Inventor 小平广和朝长浩之砂原一夫
Owner ASAHI GLASS CO LTD
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