Coated glass or glass ceramic substrate with haptic properties

Patent metadata

Field	Value
Publication number	US-9701576-B2
Application number	US-201213648815-A
Country	US
Kind code	B2
Filing date	Oct 10, 2012
Priority date	Oct 10, 2011
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

Disclosed are articles that are provided with a haptically-perceptible surface. The articles include a coated glass or glass ceramic substrate which is provided with a layer with haptic properties so that the layer has a haptically perceptible texture. The layer includes texturing inorganic and/or polysiloxane-based particles which are fixed on the substrate by a layer-forming material. The particles cause protrusions on the layer and so produce the haptically perceptible texture.

First claim

What is claimed is:

1. A coated glass or glass ceramic substrate, comprising:
a substrate;
a layer covering an area of said substrate, the layer being comprised of a layer-forming material including at least partially melted glass flow particles and texturing particles, the texturing particles having a melting point above a burning-in temperature of the layer-forming material so that the texturing particles are embedded in the layer in a manner that retains an initial outer contour of the texturing particles with the texturing particles partially protruding from the layer, the layer-forming material comprising in wt. % Al 2 O 3 0-25 and SiO 2 6-65,
wherein the texturing particles are polysiloxane-based particles,
wherein the layer has an average layer thickness at locations without the texturing particles that ranges from about 0.1 μm to about 20 μm,
wherein the texturing particles produce a haptically perceptible texture that has a surface roughness value from 0.2 μm to 1.2 μm, and
wherein the initial outer contour of the texturing particles comprise substantially edgeless and/or rounded outer contours to cause a velvety perception of the layer.

2. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said layer-forming material is a matrix selected from the group consisting of: organic matrix, inorganic matrix, polysiloxane-based matrix, silazane-based matrix, glass-based layer-forming matrix, and any combination thereof.

3. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said layer-forming material exhibits a temperature resistance of more than about 150° C.

4. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said layer has a characteristic-selected from the group consisting of:
the visible degree of surface occupancy of texturing particles protruding from the layer-forming material is greater than about 5%;
the volume ratio of layer-forming material to texturing particles is greater than about 0.1;
the mass ratio of layer-forming material to texturing particles ranges from about 20 to about 0.1;
the average spacing of texturing particles, based on the spacing from particle center to particle center, is smaller than about 4 times the mean particle diameter of the texturing particles;
the average layer thickness ranges from about 0.5 μm to about 50 μm; and
any combination thereof.

5. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein the texturing particles cause protrusions to form on the layer-forming material in an amount selected from the group consisting of: partially protruding from the layer-forming material, not covered with the layer-forming material, partially covered with the layer-forming material, and any combination thereof.

6. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein the average layer thickness of the layer-forming material is smaller than the mean diameter of the texturing particles.

7. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein the peak-to-valley (PV) value of a layer that comprises edgeless spherical particles ranges from about 4 to about 10 μm.

8. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said texturing particles further comprise materials selected from the group consisting of: glasses, alkali aluminosilicate glasses and any combination thereof.

9. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said texturing particles further comprise oxidic materials.

10. The coated glass or glass ceramic substrate as claimed in claim 9 , wherein said oxidic material is selected from the group consisting of: Al 2 O 3 , crystalline SiO 2 , ZrO 2 , ZrSiO 4 , ZnAl 2 O 4 , MgAl 2 O 4 , Y 2 O 3 , yttrium-doped ZrO 2 , calcium-doped ZrO 2 , magnesium-doped ZrO 2 , TiO 2 , ZnO, and any combination thereof.

11. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said texturing particles further comprise at least some particles having a softening range below the burning-in temperature of the layer-forming material and an initial contour that is spherical or edgeless so as to be embedded in the layer in partially melted form as fragments of the initial contour, the fragments having edges and points that protrude from the layer.

12. The coated glass or glass ceramic substrate as claimed in claim 11 , wherein at least some of the texturing particles having the softening range below the burning-in temperature of the layer-forming material comprise an initial edged and/or polygonal outer contour.

13. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein the texturing particles have a softening range above about 1000° C.

14. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein the texturing particles are spherical particles.

15. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein the layer-forming material further comprises a filler.

16. The coated glass or glass ceramic substrate as claimed in claim 15 , wherein the filler comprises: pigments, dyes, additives, and any combination thereof.

17. The coated glass or glass ceramic substrate as claimed in claim 16 , wherein the mass fraction of said filler in the total mass of the layer-forming material binding the texturing particles ranges from about 0 to about 60 wt. %.

18. The coated glass or glass ceramic substrate as claimed in claim 16 , wherein said additive is selected from the group consisting of: TiO 2 , spinels, CrCu spinels, Fe spinels, mica, and mica-based effect pigments, and any combination thereof.

19. The coated glass or glass ceramic substrate as claimed in claim 1 , having a property selected from the group consisting of: a reflectance at 550 nm from about 6 to about 9%, a transmittance at 550 nm from 75 to 85%, and any combination thereof.

20. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein the glass flow particles comprise a glass that is free of lead and cadmium.

21. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein the glass flow forming particles have a mean particle diameter, before being at least partially melted, of about 10 μm.

22. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said layer-forming material comprises an organic polymer selected from the group consisting of: polyurethane, polyacrylate, polymethacrylate, polyvinyl alcohol, polyvinyl chloride, polyvinyl acetals, polyvinyl pyrrolidone, polystyrene, epoxy, polyolefins, and mixtures of these constituents, preferably polyethylene, polypropylene, polycarbonate, polyethylene terephthalate, perfluorinated polymers, and any combination thereof.

23. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said layer-forming material comprises a polysiloxane resin selected from the group consisting of: methylpolysiloxane, phenylpolysiloxane, methylphenylpolysiloxane, vinyl-functionalized polysiloxane resin, allyl-functionalized polysiloxane resin, methacrylic functionalized polysiloxane resin, epoxy-functionalized polysiloxane resin, hydroxyl-functionalized polysiloxane resin, carboxyl-functionalized polysiloxane resin and any combination thereof.

24. The coated glass or glass ceramic substrate as claimed in claim 1 , wherein said layer-forming material comprises inorganic sol-gel material, polyme

Assignees

• Schott Ag

Inventors

• Bockmeyer Matthias
• Anton Andrea
• Milanovska Angelina
• Rebsamen Sven
• Doerk Birgit

Classifications

• C03C2217/478

  Silica · CPC title

• C03C1/008

  for the production of films or coatings · CPC title

• C03C8/04

  containing zinc · CPC title

• C03C8/14

  Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions · CPC title

• C03C2217/475

  Inorganic materials · CPC title