Liquid composition and glass article

Patent metadata

Field	Value
Publication number	US-9783455-B2
Application number	US-201514659945-A
Country	US
Kind code	B2
Filing date	Mar 17, 2015
Priority date	Sep 24, 2012
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

There are provided a liquid composition capable of forming a coating film securing colorless transparency, being excellent in weather resistance, suppressing occurrence of bleedout, and having sufficiently ultraviolet absorbing function and the infrared absorbing function, and a glass article having a coating film formed by this composition. A liquid composition for forming a coating film contains an infrared absorbent selected from a tin-doped indium oxide, an antimony-doped tin oxide, and a composite tungsten oxide; an ultraviolet absorbent selected from a benzophenone-based compound, a triazine-based compound, and a benzotriazole-based compound; predetermined amount of a dispersing agent having a molecular weight of 1,000 to 100,000; predetermined amount of a chelating agent relative forming a complex with the infrared absorbent and having a molecular weight of 1,000 to 100,000, the complex exhibiting substantially no absorption with respect to light having a visible wavelength; a binder component; and a liquid medium.

First claim

What is claimed is:

1. A liquid composition for forming a coating film, the liquid composition comprising:
an infrared absorbent (a) containing one or more oxides selected from the group consisting of a tin-doped indium oxide, an antimony-doped tin oxide, and a composite tungsten oxide;
an ultraviolet absorbent (b) containing one or more compounds selected from the group consisting of a benzophenone-based compound, a triazine-based compound, and a benzotriazole-based compound;
5 to 15 parts by mass of a dispersing agent (c) relative to 100 parts by mass of the infrared absorbent (a), the dispersing agent having a molecular weight of 1,000 to 100,000;
1 to 13 parts by mass of a chelating agent (d) relative to 100 parts by mass of the infrared absorbent (a), the chelating agent being capable of forming a complex with the infrared absorbent (a) and having a molecular weight of 1,000 to 100,000, the formed complex exhibiting substantially no absorption with respect to light having a visible wavelength;
a binder component (e); and
a liquid medium (f).

2. The liquid composition according to claim 1 , comprising the infrared absorbent (a) in a ratio of 1 to 80 parts by mass and the ultraviolet absorbent (b) in a ratio of 1 to 50 parts by mass, relative to 100 parts by mass of the binder component (e).

3. The liquid composition according to claim 1 , comprising a hydroxylated benzophenone-based compound as the ultraviolet absorbent (b).

4. The liquid composition according to claim 1 , comprising, as the ultraviolet absorbent (b), one or more compounds selected from the group consisting of a benzophenone-based compound, a triazine-based compound and a benzotriazole-based compound which comprise a silyl group having a hydrolyzable group.

5. The liquid composition according to claim 1 , wherein the infrared absorbent (a) is a tin-doped indium oxide.

6. The liquid composition according to claim 1 , wherein the chelating agent (d) is a polymer constituted of one or more monomers selected from the group consisting of a maleic acid, an acrylic acid, and a methacrylic acid.

7. The liquid composition according to claim 1 , wherein the binder component (e) is mainly constituted of a material component for forming silicon oxide-based matrix.

8. The liquid composition according to claim 7 , wherein the binder component (e) further contains polyepoxides.

9. A glass article, comprising a glass substrate and a coating film formed on a surface of at least a part of the glass substrate by using the liquid composition according to claim 1 .

10. The glass article according to claim 9 , wherein a film thickness of the coating film is 1.0 μm to 7.0 μm.

Assignees

• Asahi Glass Co Ltd

Inventors

• Kodaira Hirokazu
• Hayami Yutaka
• Yoneda Takashige

Classifications

• C08K2003/2231

  of tin · CPC title

• C03C17/28

  with organic material (C03C17/34, C03C17/44 take precedence) · CPC title

• C09D135/00

  Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least another carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Coating compositions based on derivatives of such polymers · CPC title

• C09D1/00

  Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances · CPC title

• C03C2217/475

  Inorganic materials · CPC title