Mirror comprising a silvering-modifying layer

Patent metadata

Field	Value
Publication number	US-9535198-B2
Application number	US-201214351023-A
Country	US
Kind code	B2
Filing date	Oct 11, 2012
Priority date	Oct 12, 2011
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

A colored mirror includes a transparent substrate and a reflective layer, including a coloring layer between the substrate and the reflective layer, the coloring layer including a matrix and a colorant. Furthermore, a process for preparing a mirror including a transparent substrate and a reflective layer, a coloring layer between the substrate and the reflective layer, the coloring layer including a matrix and a colorant, includes the production of the coloring layer on the substrate then the deposition of the reflective layer on the coloring layer.

First claim

The invention claimed is:

1. A colored mirror comprising a transparent substrate, a reflective layer, and a coloring layer between said substrate and said reflective layer, said coloring layer consisting of a matrix, which is inorganic or hybrid, comprising zirconia or titanium oxide and an organic colorant that is dissolved in the matrix so that the organic colorant is present in the matrix in a molecular state forming a solid solution with the matrix.

2. The mirror as claimed in claim 1 , wherein the coloring layer has a thickness between 50 nm and 100 μm.

3. The mirror as claimed in claim 2 , wherein the matrix is inorganic and has a thickness between 50 nm and 500 nm.

4. The mirror as claimed in claim 1 , wherein the matrix is hybrid and has a thickness between 50 nm and 50 μm.

5. A process for preparing a mirror comprising a transparent substrate and a reflective layer, a coloring layer between said substrate and said reflective layer, said coloring layer consisting of a matrix, which is inorganic or hybrid, comprising zirconia or titanium oxide and an organic colorant that is dissolved in the matrix so that the organic colorant is present in the matrix in molecular form and forms a solid solution with the matrix, the process comprising producing the coloring layer on the substrate and depositing the reflective layer on the coloring layer.

6. The process as claimed in claim 5 , wherein producing the coloring layer comprises spraying a liquid comprising an organometallic compound comprising condensable groups and a colorant.

7. The process as claimed in claim 6 , wherein the organometallic compound is of the alkoxide type.

8. The process as claimed in claim 5 , wherein the coloring layer is embossed in order to impart a texture thereto.

9. The process as claimed in claim 5 , wherein the substrate undergoes a texturing operation before production of the coloring layer.

10. The process as claimed in claim 9 , wherein the texturing operation is a sandblasting operation or an acid attack giving rise to a surface unevenness of the substrate.

11. The mirror as claimed in claim 4 , wherein the thickness of the matrix is between 100 nm and 50 μm.

12. A colored mirror comprising a transparent substrate, a reflective layer, and a coloring layer between said substrate and said reflective layer, said coloring layer consisting of a hybrid matrix and an organic colorant that is dissolved in the hybrid matrix so that the organic colorant is present in the hybrid matrix in a molecular state and forms a solid solution with the hybrid matrix, wherein the hybrid matrix consists of a material that results from a hydrolysis/condensation of organosilanes R—Si(OR′) 3 with R and R′ being aryl or alkyl groups.

13. The mirror as claimed in claim 12 , wherein R bears a polymerizable function.

14. The mirror as claimed in claim 13 , wherein the polymerizable function is methacryloxypropyltrimethoxysilane or 3-glycidyloxypropyltrimethoxysilane.

Assignees

• Saint Gobain

Inventors

• Faure Regine
• Rachet Vincent

Classifications

• C23C18/31

  Coating with metals · CPC title

• C03C15/00

  Surface treatment of glass, not in the form of fibres or filaments, by etching (etching or surface-brightening compositions, in general C09K13/00) · CPC title

• C03C19/00

  Surface treatment of glass, not in the form of fibres or filaments, by mechanical means (sand-blasting, grinding, or polishing glass B24) · CPC title

• B29D11/00596 Primary

  Mirrors · CPC title

• C03C17/3618

  Coatings of type glass/inorganic compound/other inorganic layers, at least one layer being metallic · CPC title