Filled-pore decorative layer for ion exchange and automotive glass

Patent metadata

Field	Value
Publication number	US-12023896-B2
Application number	US-202017603719-A
Country	US
Kind code	B2
Filing date	Apr 15, 2020
Priority date	Apr 16, 2019
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

The disclosure relates to glass articles having a decorative inorganic layer that is compatible with ion exchange processes and suitable for automotive glass. The inorganic layer comprises a plurality of pores in which polymerizable filler components have been deposited and cross-linked. The porous inorganic layer has a glass transition temperature of greater than 450° C. and a glass softening temperature of less than 650° C. The disclosure also provides glass articles containing the filled porous inorganic layer and methods for preparing the same.

First claim

What is claimed is:

1. A glass article comprising:
a chemically-strengthened glass substrate;
a porous inorganic layer adhered to at least a portion of the glass substrate and having a glass transition temperature of greater than 450° C., a glass softening temperature of less than 650° C. and a plurality of pores; and
a cross-linked organic resin within the pores of the porous inorganic layer.

2. The glass article of claim 1 , wherein the glass substrate is a curved sheet having a concave surface and a convex surface, and the porous inorganic layer is adhered to the concave surface or the convex surface.

3. The glass article of claim 2 , further comprising a sealant glue contacting at least a portion of the porous inorganic layer, the concave surface of the glass substrate, or both.

4. The glass article of claim 2 , further comprising a polyvinyl butyral layer contacting at least a portion of the porous inorganic layer, the convex surface of the glass substrate, or both.

5. The glass article of claim 1 , wherein the porous inorganic layer comprises ceramic enamel and pigment.

6. The glass article of claim 1 , wherein the porous inorganic layer comprises a glass flux comprising oxides of Bi, B, Zn, Si, or any combination thereof.

7. The glass article of claim 1 , wherein the porous inorganic layer has less than 1 mol % Na 2 O, less than 10 mol % Fe 2 O 3 , or less than 25 mol % P 2 O 5 .

8. The glass article of claim 1 , wherein the cross-linked organic resin comprises one or more polysiloxane, polysilsesquioxane, polyacrylate, polystyrene, polyurethane, or polyamide.

9. The glass article of claim 1 , wherein the cross-linked organic resin comprises at least 5 wt % cross-linked monomer units and a glass transition temperature above 120° C.

10. A multilayer automotive glass comprising:
a first glass substrate having a first major surface and a second major surface;
a second glass substrate having a third major surface and a fourth major surface;
a polyvinyl butyrate layer contacting the second major surface of the first glass substrate and the third major surface of the second glass substrate; and
a porous inorganic layer adhered to at least a portion of the fourth major surface of the second glass substrate;
wherein the second glass substrate is chemically-strengthened and the porous inorganic layer has a glass transition temperature of greater than 450° C., a glass softening temperature of less than 650° C. and a plurality of pores containing a cross-linked organic resin.

11. The multilayer automotive glass of claim 10 , wherein the first glass substrate and the second glass substrate each have a concave surface and a convex surface.

12. The multilayer automotive glass of claim 10 , wherein a second porous inorganic layer is adhered to at least a portion of the third major surface of the second glass substrate and in contact with the polyvinyl butyrate layer.

13. The multilayer automotive glass of claim 10 , further comprising a sealant glue contacting at least a portion of the porous inorganic layer, the fourth major surface of the second glass substrate, or both.

14. The multilayer automotive glass of claim 10 , wherein the porous inorganic layer comprises ceramic enamel and pigment.

15. The multilayer automotive glass of claim 10 , wherein the porous inorganic layer comprises a glass flux comprising oxides of Bi, B, Zn, Si, or any combination thereof, and the porous inorganic layer has less than 1 mol % Na 2 O, less than 10 mol % Fe 2 O 3 , or less than 25 mol % P 2 O 5 .

16. The multilayer automotive glass of claim 10 , wherein the cross-linked organic resin comprises one or more polysiloxane, polysilsesquioxane, polyacrylate, polyvinyl, polystyrene, polyurethane, or polyamide.

Assignees

• Corning Inc

Inventors

• Berrebi Mickaël
• Lehuede Philippe

Classifications

• B32B17/06

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

• C03C2217/72

  Decorative coatings · CPC title

• C03C2217/425

  consisting of a porous layer · CPC title

• C03C17/009

  Mixtures of organic and inorganic materials, e.g. ormosils and ormocers · CPC title

• B32B2605/006

  Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings · CPC title