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Infrared radiation-absorbing fine particle-containing composition, and method for producing same

A technology of infrared rays and compositions, applied in the direction of radiation-absorbing coatings, tungsten compounds, chemical instruments and methods, etc., can solve the problems of poor wettability of transparent substrates and achieve high stability

Active Publication Date: 2021-12-28
SUMITOMO METAL MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dispersion liquid for forming an infrared shielding film using water as a main solvent has the following problems: poor wettability to transparent substrates, and the drying of the solvent is greatly affected by the ambient temperature and humidity during coating. is avoided in the market

Method used

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  • Infrared radiation-absorbing fine particle-containing composition, and method for producing same
  • Infrared radiation-absorbing fine particle-containing composition, and method for producing same
  • Infrared radiation-absorbing fine particle-containing composition, and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] As infrared absorbing fine particles, prepare hexagonal cesium tungsten bronze (Cs 0.33 WOz, 2.0≦z≦3.0) composite tungsten oxide powder (YM-01 manufactured by Sumitomo Metal Mining Co., Ltd.).

[0147] As a dispersant, a liquid dispersant (solid content 100% by mass, acid value 0 mgKOH / g, amine value 32 mgKOH / g) having an amine-containing group as a functional group was prepared, and the vitrification of the dispersant was The transition temperature is -72°C.

[0148] 33 parts by mass of infrared absorbing fine particles, 17 parts by mass of a dispersant, and 50 parts by mass of propylene glycol monomethyl ether acetate as a solvent were mixed to prepare a 3 kg slurry. This slurry was put into a media agitation mill together with the beads, and pulverized and dispersed for 10 hours to obtain the infrared-absorbing fine particle dispersion of Example 1.

[0149] In addition, as a media stirring mill, a horizontal cylindrical ring type (manufactured by ASHIZAWA Co., Ltd...

Embodiment 2

[0161] As a dispersant, a liquid dispersant (solid content 100% by mass, acid value 0 mgKOH / g, amine value 45 mgKOH / g) having an amine-containing group as a functional group was prepared, and the vitrification of the dispersant was Except that the transition temperature was -66°C, the same operation as in Example 1 was carried out to produce the infrared-absorbing fine particle-containing composition of Example 2.

[0162] The prepared infrared-absorbing microparticle-containing composition of Example 2 had a solvent content of 1.8 mass%, a dispersant content of 33.4 mass%, and an infrared-absorbing microparticle content of 64.8 mass%. In addition, the viscosity (24° C.) of the obtained infrared-absorbing fine particle-containing composition was 1800 mPa·s.

[0163] The composition containing the infrared-absorbing microparticles of Example 2 was stored at 25° C. for a long period of 12 months, and its storage stability was investigated.

[0164] As a result, re-agglomeration...

Embodiment 3

[0167] As a dispersant, a liquid dispersant (solid content 100% by mass, acid value 6 mgKOH / g, amine value 48 mgKOH / g) having an amine-containing group as a functional group was prepared, and the vitrification of the dispersant was Except that the transition temperature was -85°C, the same operation as in Example 1 was carried out to produce the infrared-absorbing fine particle-containing composition of Example 3.

[0168] The prepared infrared-absorbing microparticle-containing composition of Example 3 had a solvent content of 1.7 mass%, a dispersant content of 33.4 mass%, and an infrared-absorbing microparticle content of 64.9 mass%. In addition, the viscosity (24° C.) of the obtained infrared-absorbing fine particle-containing composition was 1700 mPa·s.

[0169] The composition containing the infrared-absorbing microparticles of Example 3 was stored at 25°C for a long period of 12 months, and its storage stability was investigated.

[0170] As a result, re-agglomeration, ...

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Abstract

Provided is an infrared radiation-absorbing fine particle-containing composition which contains infrared radiation-absorbing fine particles, a dispersing agent and a solvent, and which is characterized in that the dispersing agent has a polyether structure, has a glass transition temperature of -150 to 0 DEG C, and is contained at a quantity of 10 parts by mass or more relative to 100 parts by mass of the infrared radiation-absorbing fine particles, and in that the content of the solvent is 10 mass% or less. Also provided is a method for producing the composition.

Description

technical field [0001] The present invention relates to a composition containing infrared-absorbing fine particles that transmits light in the visible light region and absorbs light in the infrared region, and a method for producing the same. Background technique [0002] Various techniques have been proposed so far as a heat ray shielding technique for reducing the solar transmittance while maintaining transparency by having a good visible light transmittance. Among them, the heat ray shielding technology using infrared absorbing particles or a dispersion of the infrared absorbing particles has advantages such as excellent heat ray shielding properties, low cost, radio wave transmittance, and high weather resistance compared to other technologies. [0003] In Patent Document 1, the present inventors disclose an infrared shielding material particle dispersion formed by dispersing infrared shielding material particles in a medium, excellent optical properties, conductivity, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09D5/32
CPCC09D11/03C09D5/32C01G41/00C08K2003/2258C09D7/61C09D11/30C09D11/102C08L71/02C01P2002/60C08K3/22C09D11/326C09D171/00
Inventor 常松裕史长南武冈田美香福山英昭
Owner SUMITOMO METAL MINING CO LTD