Laminated glass and method of mounting laminated glass

Patent metadata

Field	Value
Publication number	US-10766230-B2
Application number	US-201916402694-A
Country	US
Kind code	B2
Filing date	May 3, 2019
Priority date	Jul 31, 2012
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

There is provided laminated glass which is high in heat shielding properties. The laminated glass according to the present invention is provided with a first laminated glass member, a second laminated glass member and an interlayer film arranged between the first and second laminated glass members; the interlayer film is provided with an infrared ray reflection layer which reflects infrared rays, a first resin layer which is arranged on a first surface side of the infrared ray reflection layer and contains a thermoplastic resin, and a second resin layer which is arranged on a second surface side of the infrared ray reflection layer and contains a thermoplastic resin; and the infrared ray transmittance in the wavelength of 780 to 2100 nm of the whole layer composed of the first laminated glass member and the first resin layer is higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the whole layer composed of the first laminated glass member and the second resin layer.

First claim

The invention claimed is:

1. A laminated glass comprising a first laminated glass member, a second laminated glass member and an interlayer film arranged between the first laminated glass member and the second laminated glass member,
the interlayer film being provided with an infrared ray reflection layer which reflects infrared rays, a first resin layer which is arranged on a first surface side of the infrared ray reflection layer and contains a thermoplastic resin, and a second resin layer which is arranged on a second surface side opposite to the first surface of the infrared ray reflection layer and contains a thermoplastic resin,
the first resin layer optionally containing a heat shielding compound which is at least one kind of ingredient among heat shielding particles, a phthalocyanine compound, a naphthalocyanine compound and an anthracyanine compound,
the second resin layer containing a heat shielding compound which is at least one kind of ingredient among heat shielding particles, a phthalocyanine compound, a naphthalocyanine compound and an anthracyanine compound,
when a content of the heat shielding compound in the first resin layer is X % by weight and a content of the heat shielding compound in the second resin layer is Y % by weight, X is 0 or more, Y is 0.05 or more, and X is less than Y, and a difference between X and Y is 0.05 or more and 2 or less,
the first laminated glass member being arranged on the outside of the first resin layer in the interlayer film, the second laminated glass member being arranged on the outside of the second resin layer in the interlayer film, and the infrared ray transmittance in the wavelength of 780 to 2100 nm of the whole layer composed of the first laminated glass member and the first resin layer being higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the whole layer composed of the second laminated glass member and the second resin layer.

2. The laminated glass according to claim 1 , wherein the infrared ray transmittance in the wavelength of 780 to 2100 nm of the first resin layer is higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the second resin layer, or the infrared ray transmittance in the wavelength of 780 to 2100 nm of the first laminated glass member is higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the second laminated glass member.

3. The laminated glass according to claim 1 , wherein the infrared ray transmittance in the wavelength of 780 to 2100 nm of the first resin layer is higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the second resin layer.

4. The laminated glass according to claim 1 , wherein the infrared ray transmittance in the wavelength of 780 to 2100 nm of the first laminated glass member is higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the second laminated glass member.

5. The laminated glass according to claim 1 , wherein the infrared ray transmittance in the wavelength of 780 to 2100 nm of the first resin layer is higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the second resin layer, and the infrared ray transmittance in the wavelength of 780 to 2100 nm of the first laminated glass member is higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the second laminated glass member.

6. The laminated glass according to claim 1 , wherein the infrared ray reflection layer is a resin film with metal foil, a multilayer laminated film in which a metal layer and a dielectric layer are formed on a resin layer, a multilayer resin film or a liquid crystal film.

7. The laminated glass according to claim 1 , wherein the second resin layer contains metal oxide particles.

8. The laminated glass according to claim 7 , wherein the metal oxide particles are tin-doped indium oxide particles or tungsten oxide particles.

9. The laminated glass according to claim 1 , wherein the second resin layer contains at least one kind among a phthalocyanine compound, a naphthalocyanine compound and an anthracyanine compound.

10. The laminated glass according to claim 1 , wherein the thermoplastic resin in the first resin layer is a polyvinyl acetal resin and the thermoplastic resin in the second resin layer is a polyvinyl acetal resin.

11. The laminated glass according to claim 1 , wherein the first resin layer contains a plasticizer and the second resin layer contains a plasticizer.

12. The laminated glass according to claim 1 , wherein the first resin layer contains an ultraviolet ray shielding agent.

13. The laminated glass according to claim 1 , wherein the second resin layer contains an ultraviolet ray shielding agent.

14. A method of mounting laminated glass according to claim 1 for a building or a vehicle on an opening part between an outer space and an inner space into which heat rays are made incident from the outer space, comprising the step of mounting the laminated glass on the opening part so that the first laminated glass member is positioned at the outer space side and the second laminated glass member is positioned at the inner space side.

15. The laminated glass according to claim 1 , wherein the interlayer film further comprises a flame retardant.

16. The laminated glass according to claim 1 , wherein the first resin layer contains the heat shielding compound which is at least one kind of ingredient among heat shielding particles, the phthalocyanine compound, the naphthalocyanine compound and the anthracyanine compound.

Assignees

• Sekisui Chemical Co Ltd

Inventors

• Ohmoto Izumi
• Nakajima Daisuke
• Ii Daizou
• Fukatani Juichi

Classifications

• G02B5/287

  comprising at least one layer of organic material · CPC title

• B32B2605/00

  Vehicles · CPC title

• B32B17/10633

  Infrared radiation absorbing or reflecting agents · CPC title

• B32B27/18

  characterised by the use of special additives · CPC title

• B32B17/10761 Primary

  containing vinyl acetal · CPC title