Composite material with decorative coating and method for producing same

• US 10,590,036 B2
• Filed: 10/20/2014
• Issued: 03/17/2020
• Est. Priority Date: 04/20/2012
• Status: Active Grant

• Current Assignee: Schott AG (Carl-Zeiss-Stiftung)
• Original Assignee: Schott AG (Carl-Zeiss-Stiftung)
• Inventors: Bockmeyer, Matthias, Anton, Andrea, Klippe, Lutz, Kottenstedte, Claudia
• Primary Examiner(s): Tschen, Francisco W
• Application Number:
  US14/518,471
• Publication Number:
  US 20150037507A1
• Time in Patent Office: 1,975 Days
• Field of Search: None
• CPC Class Codes: B05D 1/36 Successively applying liquids or other fluent materials, e.g. without intermediate treatment
• CPC Class Codes: B05D 5/06 to obtain multicolour or other optical effects B05D5/02 takes precedence
• CPC Class Codes: B05D 7/52 Two layers
• CPC Class Codes: C03C 17/008 comprising a mixture of materials covered by two or more of the groups C03C17/02, C03C17/06, C03C17/22 and C03C17/28
• CPC Class Codes: C03C 17/32 with synthetic or natural resins C03C17/30 takes precedence
• CPC Class Codes: C03C 17/42 at least one coating of an organic material and at least one non-metal coating
• CPC Class Codes: C03C 2217/425 consisting of a porous layer
• CPC Class Codes: C03C 2217/485 Pigments
• CPC Class Codes: C03C 2217/72 Decorative coatings
• CPC Class Codes: C03C 2218/36 Underside coating of a glass sheet
• CPC Class Codes: F24C 15/02 Doors specially adapted for stoves or ranges
• CPC Class Codes: F24C 15/10 Tops, e.g. hot plates; Rings cover lids or splash guards F24C15/12; spillage trays or grooves F24C15/14
• CPC Class Codes: Y10T 428/24364 with transparent or protective coating

Abstract

The invention relates to a method for producing a composite material with a decorative coating, wherein a porous layer that includes pigment particles is applied onto a glass or glass ceramic substrate. The porous layer is filled with a polymer.

Claims

1. A composite material, comprising a glass ceramic substrate with a composite layer disposed on the glass ceramic substrate, the composite layer having a predominantly inorganic skeleton that has first pigment particles, wherein the composite layer is porous having nanoscale pores filled with a polymer, wherein the polymer is a polysiloxane, wherein the polymer comprises second pigment particles, and wherein the second pigment particles are platelet-shaped and lie upon the composite layer as an additional layer.

2. The composite material as claimed in claim 1, wherein the composite layer has a closed porosity of less than 20%.

3. The composite material as claimed in claim 1, wherein the composite layer has a closed porosity of less than 5%.

4. The composite material as claimed in claim 1, wherein the composite layer has a degree of gloss of G1 according to EN ISO 2813 standard.

5. The composite material as claimed in claim 1, wherein the composite material is suitable for a use selected from the group consisting of a part of a cooktop, a fireplace window, and a part of an oven door.

6. The composite material as claimed in claim 1, wherein the predominantly inorganic skeleton comprises a sol-gel layer.

7. The composite material as claimed in claim 6, wherein the sol-gel layer comprises the first pigment particles and oxide particles.

8. The composite material as claimed in claim 7, wherein the oxide particles are nanoparticles.

9. The composite material as claimed in claim 7, wherein the oxide particles are SiO₂ nanoparticles.

10. The composite material as claimed in claim 7, wherein the oxide particles have a fibrous and/or chain-like morphology.

11. The composite material as claimed in claim 1, wherein the nanoscale pores have a mean pore diameter of less than 5 nm.

12. The composite material as claimed in claim 1, wherein the nanoscale pores have a mean pore diameter of less than 10 nm.

13. The composite material as claimed in claim 1, wherein the nanoscale pores have a mean pore diameter between 1 and 200 nm.

14. The composite material as claimed in claim 1, wherein the nanoscale pores have a mean pore diameter between 0.5 and 500 nm.

15. The composite material as claimed in claim 1, wherein the nanoscale pores have a mean pore diameter between 5 and 100 nm.

16. The composite material as claimed in claim 1, wherein the polymer has a density from 1.3 to 2.2 g/cm³.

17. The composite material as claimed in claim 1, wherein the polymer has a density from 1.5 to 1.9 g/cm³.

18. The composite material as claimed in claim 1, further comprising a volume ratio of material of the predominantly inorganic skeleton that has the first pigment particles to material of the polymer in the composite layer is from 10 to 0.5.

19. The composite material as claimed in claim 18, wherein the volume ratio is from 3 to 1.5.

20. A composite material, comprising a glass ceramic substrate with a composite layer disposed on the glass ceramic substrate, the composite layer having a predominantly inorganic skeleton that has first pigment particles and has nanoscale pores and having a polymer layer on the predominantly inorganic skeleton so as to fill in the nanoscale pores, the polymer layer comprising second pigments particles, the polymer layer having a polymer with a density from 1.0 to 2.5 g/cm³, and the composite layer having a closed porosity of less than 20%.

21. A composite material, comprising a glass ceramic substrate with a composite layer disposed on the glass ceramic substrate, the composite layer having a predominantly inorganic skeleton that has pigment particles and has nanoscale pores and having a polysiloxane layer on the predominantly inorganic skeleton so as to fill in the nanoscale pores.

22. A composite material, comprising:

a glass ceramic substrate;

a composite layer disposed on the glass ceramic substrate, the composite layer having a predominantly inorganic skeleton that has first pigment particles, wherein the composite layer has nanoscale pores; and

a sealing layer comprising a polymer and platelet-shaped second pigment particles, the polymer filling the nanoscale pores and extending above the composite layer such that a portion of the sealing layer above the composite layer does not contain any of the first pigment particles, the second pigment particles being in the portion and lying upon the composite layer.