Dimming laminate and multiple glass

Patent metadata

Field	Value
Publication number	US-11119378-B2
Application number	US-201816209963-A
Country	US
Kind code	B2
Filing date	Dec 4, 2018
Priority date	Jun 8, 2016
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

A dimming laminate (10) includes: a dimming substrate (18) in which a dimming function material (16) is provided between two first transparent substrates (12) and (14); and a second transparent substrate (22) that is bonded to one first transparent substrate (12) through an adhesive layer (20). Each of the first transparent substrates (12) and (14) has a different average thermal expansion coefficient at 50-350° C. from that of the second transparent substrate (22). In the dimming laminate (10), a third transparent substrate (26) is bonded to the other first transparent substrate (14) through an adhesive layer (24), and an average thermal expansion coefficient at 50-350° C. is equal between the third transparent substrate (26) and the second transparent substrate (22).

First claim

The invention claimed is:

1. A dimming laminate comprising: a single dimming substrate in which a dimming function material is provided between two first transparent substrates; and a second transparent substrate that is bonded to one first transparent substrate of the two first transparent substrates through an adhesive layer, the first transparent substrates having a different average thermal expansion coefficient at 50-350° C. from that of the second transparent substrate,
wherein a third transparent substrate is bonded to the other first transparent substrate of the two first transparent substrates through an adhesive layer, and a difference in average thermal expansion coefficient at 50-350° C. between the third transparent substrate and the second transparent substrate is not higher than 20×10 −7 ° C.;
wherein the dimming function material is a material whose optical property can be changed reversibly, and which is an electrochromic function material, an SPD (Suspended Particle Device) material, a liquid crystal material, a polymer dispersed liquid crystal material, a photochromic material, or a thermochromic material;
wherein an alkali metal oxide content of each of the first transparent substrates is not higher than 0.1% in terms of mol % of oxides;
wherein each of the first transparent substrates has an average thermal expansion coefficient at 50-350° C. of not higher than 45×10 −7 ° C.;
wherein the second transparent substrates has an average thermal expansion coefficient at 50-350° C. of 60×10 −7 ° C. to 100×10 − ′/° C.; and
wherein the third transparent substrates has an average thermal expansion coefficient at 50-350° C. of 60×10 −7 ° C. to 100×10 −7 ° C.

2. The dimming laminate according to claim 1 , wherein the average thermal expansion coefficient at 50-350° C. is equal between the third transparent substrate and the second transparent substrate.

3. The dimming laminate according to claim 2 , wherein the average thermal expansion coefficient at 50-350° C. in each of the third transparent substrate and the second transparent substrate is higher than the average thermal expansion coefficient at 50-350° C. in each of the first transparent substrates.

4. The dimming laminate according to claim 1 , wherein a difference in average thermal expansion coefficient at 50-350° C. between the two first transparent substrates is not higher than 10×10 −7 /° C.

5. The dimming laminate according to claim 1 , wherein the average thermal expansion coefficient at 50-350° C. is equal between the two first transparent substrates.

6. A multiple glass in which the dimming laminate of claim 1 and a glass plate are put separately from each other through a spacer, and circumferential edge portions of the dimming laminate of claim 1 and the glass plate are sealed with a seal material.

7. The dimming laminate according to claim 1 , wherein each of the first transparent substrates has a thickness of 0.1-2.0 mm.

8. The dimming laminate according to claim 1 , wherein each of the second transparent substrate and the third transparent substrate has a thickness of 1.0-12.0 mm.

9. The dimming laminate according to claim 8 , wherein each of the second transparent substrate and the third transparent substrate has a thickness of 2.0 mm or more.

10. The dimming laminate according to claim 8 , wherein each of the second transparent substrate and the third transparent substrate has a thickness of 1.0 mm or more.

11. The dimming laminate according to claim 1 , wherein each of the second transparent substrate and the third transparent substrate is a soda lime glass.

12. The dimming laminate according to claim 1 , wherein each of the adhesive layers is sheet-like member and has a thickness of 0.1-2.0 mm.

13. The dimming laminate according to claim 1 , wherein a difference in thickness between the two first transparent substrates is 1 mm or less, and a difference in thickness between the second transparent substrate and the third transparent substrate is 1 mm or less.

14. The dimming laminate according to claim 1 , wherein each of the first transparent substrates has an average thermal expansion coefficient at 50-350° C. of not higher than 40×10 −7 /° C.

Assignees

• Agc Inc
• Agc Glass Europe
• Agc Flat Glass Na Inc
• Agc Vidros Do Brasil Ltda

Inventors

• Nakamura Shigeru
• Hiramatsu Tetsuya

Classifications

• B32B7/027 Primary

  Thermal properties · CPC title

• G02F1/15 Primary

  based on an electrochromic effect · CPC title

• B32B17/06

  comprising glass as the main or only constituent of a layer, next to another layer of a specific {material} · CPC title

• B32B17/10064

  comprising at least two glass sheets, only one of which being an outer layer · CPC title

• G02F1/163

  Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor · CPC title