Glasses and glass-ceramics and methods of making them

Patent metadata

Field	Value
Publication number	US-11319239-B2
Application number	US-202117384085-A
Country	US
Kind code	B2
Filing date	Jul 23, 2021
Priority date	Oct 7, 2020
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

Phosphate glasses and glass-ceramics exhibit a positive percent kill as measured by United States EPA Test Method for Efficacy of Copper Alloy Surfaces as a Sanitizer and/or have a CIELAB L* value below 35, CIELAB a* and b* values within 5 of zero.

First claim

What is claimed is:

1. A material, in terms of as-analyzed constituent components, comprising:
40 mol %≤P 2 O 5 ≤70 mol %;
25 mol %≤CuO≤55 mol %; and
5 mol %≤Fe 2 O 3 ≤15 mol,
wherein the material is an amorphous, single-phase glass.

2. Material of claim 1 , wherein 40 mol %≤CuO≤55 mol %.

3. Material of claim 1 , further comprising 0≤SiO 2 ≤35 mol %.

4. Material of claim 1 , wherein the glass is annealed.

5. Material of claim 1 , exhibiting a percent kill of at least 75 as measured by United States EPA Test Method for Efficacy of Copper Alloy Surfaces as a Sanitizer.

6. Material of claim 1 , exhibiting a CIELAB L* value below 35.

7. Material of claim 6 , exhibiting a CIELAB a* value is within 5 of zero.

8. Material of claim 7 , exhibiting a CIELAB b* value is within 5 of zero.

9. Material of claim 1 , exhibiting a black color.

10. Frit comprising material of claim 1 .

11. A surface of an article, the surface comprising material claim 1 .

12. A material, in terms of as-analyzed constituent components, comprising:
30 mol %≤P 2 O 5 ≤65 mol %;
25 mol %≤CuO≤55 mol %;
0≤SiO 2 ≤35 mol %; and
3 mol %≤X≤15 mol %, where X is one or more constituents selected from the group consisting of Fe 2 O 3 , MgO, ZnO, CaO, SrO, BaO, Li 2 O, Na 2 O, K 2 O, TiO 2 , NiO, MnO 2 , and Al 2 O 3 ;
wherein the material exhibits a percent kill of at least 75 as measured by United States EPA Test Method for Efficacy of Copper Alloy Surfaces as a Sanitizer.

13. The material of claim 12 , wherein X is Fe 2 O 3 .

14. The material of claim 13 , wherein 40 mol %≤P 2 O 5 ≤65 mol %, and wherein 40 mol %≤CuO≤55 mol %.

15. A material, in terms of as-analyzed constituent components, comprising:
40 mol %≤P 2 O 5 ≤70 mol %;
25 mol %≤CuO≤55 mol %; and
5 mol %≤Fe 2 O 3 ≤15 mol %,
wherein the material is glass or glass-ceramic.

16. The material of claim 15 , wherein 40 mol %≤CuO≤55 mol %.

17. The material of claim 15 , wherein the material is an amorphous glass and at a temperature within 50° C. of 0° C.

18. The material of claim 15 , wherein the material is a single-phase glass and at a temperature within 50° C. of 0° C.

19. The material of claim 15 , further comprising 0<SiO 2 ≤35 mol %.

20. Frit comprising the material of claim 15 .

21. A surface of an article, the surface comprising the material claim 15 .

22. A material, in terms of as-analyzed constituent components, comprising:
35 mol %≤P 2 O 5 ≤70 mol %;
25 mol %≤CuO≤55 mol % 40 mol %≤CuO≤55 mol %; and
2.5 mol %≤Fe 2 O 3 ≤25 mol,
wherein the material is an amorphous, single-phase glass.

23. Material of claim 22 , further comprising 0<SiO 2 ≤35 mol %.

24. Material of claim 23 , wherein SiO 2 ≤P 2 O 5 .

25. Frit comprising the material of claim 22 .

26. A surface of an article, the surface comprising the material claim 22 .

Assignees

• Corning Inc

Inventors

• Gross Timothy Michael
• Mitchell Alexandra Lai Ching Kao Andrews

Classifications

• C03C2201/40

  containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn · CPC title

• C03C10/00

  Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition · CPC title

• C03C2204/02

  Antibacterial glass, glaze or enamel · CPC title

• C03C3/062 Primary

  with less than 40% silica by weight · CPC title

• C03C2201/28

  containing phosphorus · CPC title