SOLAR CONTROL LAMINATE AND SOLAR CONTROL LAMINATED GLASS USING THE SAME

• US 20110318578A1
• Filed: 03/04/2010
• Published: 12/29/2011
• Est. Priority Date: 03/06/2009
• Status: Abandoned Application

• Current Assignee: Bridgestone Corporation
• Original Assignee: Bridgestone Corporation
• Inventors: Hashimoto, Masao, Kuwano, Koji
• Application Number:
  US13/254,793
• Publication Number:
  US 20110318578A1
• Time in Patent Office: Days
• US Class Current: 428/354
• CPC Class Codes: B32B 17/10005 laminated safety glass or glazing
• CPC Class Codes: B32B 17/10018 comprising only one glass sheet
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10633 Infrared radiation absorbing or reflecting agents
• CPC Class Codes: B32B 17/10678 comprising UV absorbers or stabilizers, e.g. antioxidants
• CPC Class Codes: B32B 17/10743 containing acrylate (co)polymers or salts thereof
• CPC Class Codes: B32B 17/10788 containing ethylene vinylacetate
• CPC Class Codes: B32B 2255/10 on synthetic resin layer or on natural or synthetic rubber layer
• CPC Class Codes: B32B 2255/24 Organic non-macromolecular coating
• CPC Class Codes: B32B 2307/306 Resistant to heat
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/558 Impact strength, toughness
• CPC Class Codes: B32B 2307/71 Resistive to light or to UV
• CPC Class Codes: B32B 2307/712 Weather resistant
• CPC Class Codes: B32B 2307/732 Dimensional properties
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2419/00 Buildings or parts thereof walls, panels B32B2607/00
• CPC Class Codes: B32B 2457/204 Plasma displays
• CPC Class Codes: B32B 2509/00 Household appliances
• CPC Class Codes: B32B 2605/00 Vehicles
• CPC Class Codes: B32B 27/08 : of synthetic resin
• CPC Class Codes: B32B 27/283 : comprising polysiloxanes
• CPC Class Codes: B32B 27/306 : comprising vinyl acetate or vinyl alcohol (co)polymers
• CPC Class Codes: B32B 27/308 : comprising acrylic (co)polymers
• CPC Class Codes: B32B 27/32 : comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 27/36 : comprising polyesters
• CPC Class Codes: B32B 7/12 : using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: Y10T 428/28 : Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2848 : Three or more layers
• CPC Class Codes: Y10T 428/2891 : including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof

Abstract

The object of the present invention is to provide a solar control laminate including tungsten oxide as a solar control agent, in which deterioration by discoloration is suppressed in spite of the inclusion of tungsten oxide. The solar control laminate of the invention includes a solar control layer comprising tungsten oxide and/or composite tungsten oxide and at least one adhesive resin layer, and the adhesive resin layer includes an ultraviolet absorber, a light stabilizer and adhesive resin, and the adhesive resin layer has light transmittance of not more than 10% at wavelength of 380 nm.

Claims

1. A heat-ray shielding laminate which comprises a solar control layer comprising tungsten oxide and/or composite tungsten oxide and at least one adhesive resin layer,

wherein the adhesive resin layer comprises an ultraviolet absorber, a light stabilizer and adhesive resin, and has light transmittance of not more than 10% at wavelength of 380 nm.

2. A solar control laminate as defined in claim 1, wherein the adhesive resin layer contains the light stabilizer in the amount of 0.05 to 1.0 part by weight based on 100 parts by weight of the adhesive resin.

3. A solar control laminate as defined in claim 1, wherein the light stabilizer is a hindered amine light stabilizer.

4. A solar control laminate as defined in claim 1, wherein the adhesive resin layer contains the ultraviolet absorber in the amount of 0.01 to 2.0 part by weight based on 100 parts by weight of the adhesive resin.

5. A solar control laminate as defined claim 1, wherein a ratio by weight of the light stabilizer to the ultraviolet absorber is in the range of 1:

1 to 1;

15.

6. A solar control laminate as defined in claim 1, wherein the ultraviolet absorber is a benzophenone ultraviolet absorber.

7. A solar control laminate as defined in claim 1, wherein the adhesive resin layer comprises ethylene-vinyl acetate copolymer as a binder resin.

8. A solar control laminate defined in claim 1, wherein the tungsten oxide is represented by a general formula W_yO_z wherein W represents tungsten, O represents oxygen, and y and z satisfy the condition of 2.2≦

z/y≦

2.999, and the composite tungsten oxide is represented by a general formula M_xW_yO_z, wherein M represents at least one element selected from H, He, alkaline metals, alkaline-earth metals, rare-earth elements, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Ti, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi and I, W represents tungsten, O represents oxygen, and x, y and z satisfy the conditions of 0.001≦

x/y≦

1 and 2.2≦

z/y≦

3.

9. A solar control laminate as defined in claim 1, wherein the solar control layer comprises at least one binder resin selected from fluoro resin, silicone resin, olefin resin and acrylic resin.

10. A solar control laminate as defined in claim 1, wherein the solar control laminate has two adhesive resin layers and the solar control layer is interposed between the two adhesive resin layers.

11. A solar control laminate as defined in claim 1, wherein the solar control laminate has two adhesive resin layers and the solar control layer which is formed on a plastic film is interposed between the two adhesive resin layers.

12. A solar control laminate as defined in claim 10, which is an intermediate layer for a solar control laminated glass.

13. A solar control laminated glass wherein the solar control laminate as defined in claim 10 is interposed between two transparent substrates, they being bonded to each other and united with each other.