Laminated glass structure

• US 5,346,770 A
• Filed: 10/12/1993
• Issued: 09/13/1994
• Est. Priority Date: 02/14/1991
• Status: Expired due to Term

• Current Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Original Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Inventors: Osada, Koichi, Mitsui, Akira, Ando, Eiichi
• Primary Examiner(s): Robinson, Ellis P.
• Assistant Examiner(s): Speer, Timothy M.
• Application Number:
  US08/135,186
• Time in Patent Office: 336 Days
• Field of Search: 428/432, 428/437, 428/436, 428/336, 428/334, 428/699, 428/702, 428/469, 428/471, 428/472, 428/701
• US Class Current: 428/432
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10174 Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: C03C 17/38 at least one coating being a coating of an organic material
• CPC Class Codes: Y10T 428/263 Coating layer not in excess of 5 mils thick or equivalent
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/31627 Next to aldehyde or ketone condensation product
• CPC Class Codes: Y10T 428/3163 Next to acetal of polymerized unsaturated alcohol [e.g., formal butyral, etc.]

Abstract

A laminated glass structure is provided containing at least one glass sheet, a plastic layer provided at the bonding surface of the glass sheet, and a functioning layer having single-or multi-layered films between the bonding surfaces of the glass sheet and the plastic layer, with the functioning layer having a controlling layer in contact with the plastic layer, which contains as the major component an oxide including Cr and at least one of Ti, Zn, Sn, Ni, Zr, Al, Si, Mg and Fe, and wherein the controlling layer has an atomic ratio of Cr to atoms other than oxygen of 60% or lower, and the film thickness of the controlling layer is 10 Å to 500 Å.

Claims

1. A laminated glass structure, which comprises:

a) at least one glass sheet;

b) a plastic layer provided at the bonding surface of said glass sheet; and

c) a functioning layer consisting of single or multi-layered films which is provided between the bonding surfaces of the glass sheet and the plastic layer, wherein the functioning layer has a controlling layer as the layer in contact with the plastic layer, which comprises an effective amount of an oxide having the formula MCr_x O_y, wherein M is at least one element selected from the group consisting of Ti, Zn, Sn, Ni, Zr, Al, Mg and Fe; and

wherein the atomic ratio of Cr to atoms other than oxygen in the controlling layer is from 10% to 60%, and

wherein the film thickness of said controlling layer is from 10 Å

to 500 Å

.

2. The laminated glass structure according to claim 1, wherein the atomic ratio of Cr to the atoms other than oxygen in the controlling layer is in the range of 10-40%.

3. The laminated glass structure according to claim 1, wherein said controlling layer includes Ti.

4. The laminated glass structure according to claim 1, wherein said functioning layer comprises a transparent conductive film which includes a metal film, and said controlling layer as the layer in contact with the plastic layer.

5. The laminated glass structure according to claim 1, wherein said functioning layer comprises a solar radiation shielding film which includes a metal film, and said controlling layer as the layer in contact with the plastic layer.

6. The laminated glass structure according to claim 4, wherein said functioning layer comprises multi-layered films which are laminated in the order of dielectric film/metal film/dielectric film.

7. The laminated glass structure according to claim 5, wherein said functioning layer comprises multi-layered films which are laminated in the order of dielectric film/metal film/dielectric film.

8. The laminated glass structure in claim 1, wherein said plastic layer is a polyvinylbutyral film.

9. The laminated glass structure according to claim 6, wherein said metal film is selected from the group consisting of a film of Ag, Au, Pd, Cu, Pt, Ag-Pd and Ag-Cu.

10. The laminated glass structure according to claim 6, wherein said dielectric material is selected from the group consisting of a film of ZnO, TiO₂, Al-, Si-, Ti-, Mg-, Sn-, Mg- and B-doped ZnO, F- and Sb-doped SnO₂ and Sn-doped In₂ O₃.

11. The laminated glass structure according to claim 7, wherein said metal film is selected from the group consisting of a film of Ag, Au, Pd, Cu, Pt, Ag-Pd and Ag-Cu.

12. The laminated glass structure according to claim 7, wherein said dielectric material is selected from the group consisting of a film of ZnO, TiO₂, Al-, Si-, Ti-, Mg-, Sn-, Mg- and B-doped ZnO, F- and Sb-doped SnO₂ and Sn-doped In₂ O₃.