Coating solution for forming ultraviolet-absorbing film, and ultraviolet-absorbing glass article

Inactive Publication Date: 2012-02-16
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0023]By using the coating solution for forming an ultraviolet-absorbing film of the present invention, it is possible to form an ultraviolet-absorbing film which has mechanical durability such as abrasion resistance and which is little susceptible to deterioration of the ultrav

Problems solved by technology

However, with the silica-type ultraviolet-absorbing film as disclosed in Patent Document 1, absorption of long wavelength ultraviolet rays required by the present invention has not been accomplished although it has mechanical durability such as abrasion resistance, and if it is attempted to add the ultraviolet-absorber in a high concentration in order to absorb ultraviolet rays having long wavelengths, there have been problems such that deterioration in the mechanical durability and bleeding out of the ultraviolet absorber from the film un

Method used

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  • Coating solution for forming ultraviolet-absorbing film, and ultraviolet-absorbing glass article
  • Coating solution for forming ultraviolet-absorbing film, and ultraviolet-absorbing glass article
  • Coating solution for forming ultraviolet-absorbing film, and ultraviolet-absorbing glass article

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0137]41.9 g of ethanol, 17.3 g of tetramethoxysilane, 5.8 g of 3-glycidoxypropyltrimethoxysilane, 15.0 g of the silylated ultraviolet absorber-solution obtained in the above Preparation Example, 15.8 g of pure water and 4.2 g of 1% nitric acid aqueous solution were charged and stirred for one hour to obtain a coating solution 1 for forming an ultraviolet-absorbing film. Then, the coating solution 1 was applied by a spin coating method on a high heat-absorbing green glass having its surface cleaned (Tv: 75.2%, Tuv: 9.5%, transmittance of light with a wavelength of 380 nm: 38.5%, 10 cm in length, 10 cm in width, 3.5 cm in thickness, tradename: UVFL, manufactured by Asahi Glass Company, Limited) and dried in atmospheric air at 150° C. for 30 minutes, to obtain an ultraviolet-absorbing film-attached glass plate. The properties of the obtained ultraviolet-absorbing film-attached glass plate were evaluated as follows. The evaluation results are shown in Table 2.

[Evaluations]

[0138]1) Film...

example 2

[0145]An ultraviolet ray-absorbing film-attached glass plate was prepared in the same manner as in Example 1 except that the film thickness was changed. The properties of the obtained ultraviolet-absorbing film-attached glass plate were evaluated in the same manner as in Example 1. The evaluation results are shown in Table 2.

example 3

[0146]42.6 g of ethanol, 18.1 g of tetramethoxysilane, 4.6 g of 3-glycidoxypropyltrimethoxysilane, 14.8 g of the silylated ultraviolet absorber solution obtained in the above Preparation Example, 15.8 g of pure water and 4.2 g of a 1% nitric acid aqueous solution were charged and stirred for one hour to obtain a coating solution 2 for forming an ultraviolet-absorbing film. An ultraviolet-absorbing film-attached glass plate was prepared in the same manner as in Example 1 except that the above coating solution 2 was used instead of the coating solution 1. The properties of the obtained ultraviolet-absorbing film-attached glass plate were evaluated in the same manner as in Example 1. The evaluation results are shown in Table 2.

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Abstract

To provide a coating solution for forming an ultraviolet-absorbing film which has mechanical durability such as abrasion resistance and which is little susceptible to deterioration of the ultraviolet-absorbing ability by use for a long period of time, and an ultraviolet-absorbing glass article having an ultraviolet-absorbing film formed by using such a coating solution, which has mechanical durability such as abrasion resistance and which is little susceptible to deterioration of the ultraviolet-absorbing ability by use for a long period of time.
A coating solution which comprises a component derived from an epoxidized organooxysilane compound, a component derived from an organooxysilane compound which is a reaction product of a hydroxylated benzophenone compound and an epoxidized organooxysilane compound, and a component derived from an organooxysilane compound other than the above both organooxysilane compounds, and an ultraviolet-absorbing glass article obtained by using the coating solution.

Description

TECHNICAL FIELD[0001]The present invention relates to a coating solution for forming an ultraviolet-absorbing film on the surface of an article such as glass, and an ultraviolet-absorbing glass article having an ultraviolet-absorbing film formed by using such a coating solution.BACKGROUND ART[0002]In recent years, it has been attempted that on a transparent substrate such as window glass for a vehicle such as an automobile or window glass for a house or building, an ultraviolet-absorbing film is formed as a coating film which has an ability to absorb ultraviolet rays entering into the vehicle or room therethrough and which has mechanical durability such as abrasion resistance.[0003]In order to obtain an ultraviolet-absorbing coating film having high abrasion resistance and ultraviolet-absorbing ability, it has been attempted to form a silica-type ultraviolet-absorbing film on a substrate by using a coating solution having an organic ultraviolet-absorbing agent blended to a silane co...

Claims

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Application Information

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IPC IPC(8): F21V9/06G02B5/22C09D5/32C09D183/06
CPCC03C17/30C03C2217/74C08G77/14C09D183/06Y10T428/31663
Inventor KODAIRA, HIROKAZUTOMONAGA, HIROYUKI
Owner ASAHI GLASS CO LTD
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