Filled-pore decorative layer for ion exchange and automotive glass
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.
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.