Glass sheet and system and method for making glass sheet

Patent metadata

Field	Value
Publication number	US-9919958-B2
Application number	US-201514799201-A
Country	US
Kind code	B2
Filing date	Jul 14, 2015
Priority date	Jul 17, 2014
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A method includes impregnating a region of a glass sheet with a filler material in a liquid state. The glass sheet includes a plurality of glass soot particles. The filler material is solidified subsequent to the impregnating step to form a glass/filler composite region of the glass sheet.

First claim

What is claimed is:

1. A method comprising:
impregnating a region of a glass sheet with a filler material in a liquid state by filling interstitial voids within the region of the glass sheet with the filler material, the glass sheet comprising a plurality of glass soot particles; and
solidifying the filler material subsequent to the impregnating step to form a glass/filler composite region of the glass sheet, wherein the glass/filler composite region comprises a first edge region extending longitudinally along a first edge of the glass sheet and a second edge region extending longitudinally along a second edge of the glass sheet opposite the first edge, and the glass sheet further comprises a central region positioned between the first edge region and the second edge region and substantially free of the filler material.

2. The method of claim 1 , wherein the impregnating step comprises:
applying the filler material in the liquid state to a surface of the glass sheet; and
wicking the filler material in the liquid state from the surface of the glass sheet into an interior of the glass sheet.

3. The method of claim 2 , wherein the filler material is drawn into the entire thickness of the impregnated region during the wicking.

4. The method of any of claim 1 , further comprising:
moving the glass sheet in a longitudinal direction; and
engaging the glass/filler composite region of the glass sheet with a guiding device to tension the glass sheet in a transverse direction.

5. A method comprising:
impregnating a region of a glass sheet with a filler material in a liquid state by filling interstitial voids within the region of the glass sheet with the filler material, the glass sheet comprising a plurality of glass soot particles;
solidifying the filler material subsequent to the impregnating step to form a glass/filler composite region of the glass sheet; and
heating a region of the glass sheet that is substantially free of the filler material to form a densified glass region of the glass sheet, at least a portion of the filler material in the glass/filler composite region of the glass sheet remaining in a solid state during the heating step.

6. The method of claim 5 , wherein the impregnating step comprises:
applying the filler material in the liquid state to a surface of the glass sheet; and
wicking the filler material in the liquid state from the surface of the glass sheet into an interior of the glass sheet.

7. The method of claim 6 , wherein the filler material is drawn into the entire thickness of the impregnated region during the wicking.

8. The method of any of claim 5 , further comprising:
moving the glass sheet in a longitudinal direction; and
engaging the glass/filler composite region of the glass sheet with a guiding device to tension the glass sheet in a transverse direction.

9. A method comprising:
impregnating a first region of a glass sheet with a filler material in a liquid state by filling interstitial voids within the first region of the glass sheet with the filler material, the glass sheet comprising a plurality of glass soot particles; and
solidifying the filler material, subsequent to the impregnating step, to form a glass/filler composite of the glass sheet in the first region while maintaining a second region of the glass sheet that is substantially free of the filler material.

10. The method of claim 9 , further comprising heating the second region of the glass sheet to form a densified glass region of the glass sheet.

11. The method of claim 9 , wherein the first region is disposed at an edge of the glass sheet.

12. The method of claim 11 , wherein the glass sheet is in the form of a ribbon.

13. The method of claim 11 , the first region comprises the first edge region extending longitudinally along the first edge of the glass sheet and wherein the glass sheet further comprises a second edge region extending longitudinally along a second edge of the glass sheet opposite the first edge that comprises glass/filler composite.

14. The method of claim 13 , wherein the glass sheet comprises a central region positioned between the first edge region and the second edge region, and wherein the second region of the glass sheet that is substantially free of the filler material is the central region.

15. The method of claim 14 , wherein at least a portion of the central region comprises densified glass.

16. The method of claim 9 , wherein a ratio of density of the first region to density of the second region is at least about 1.5.

17. The method of claim 9 , wherein the glass soot particles comprise silica.

18. The method of claim 17 , wherein the glass soot particles are doped.

19. The method of claim 17 , wherein the glass soot particles are connected and/or bonded with at least some of the other glass soot particles proximate thereto.

20. The method of claim 19 , wherein the glass soot particles are at least partially melted together with at least some of the other glass soot particles proximate thereto.

Assignees

• Corning Inc

Inventors

• Hawtof Daniel Warren
• Hill Nathan Michael
• Lynn Eric Yun Kuei
• Magee Catherine Michiko
• Noll Brent Allen
• Shneyer Daniel Roberto
• Shooter Steven Bryan

Classifications

• C03C17/002

  for flat glass, e.g. float glass · CPC title

• C03B19/1492

  Deposition substrates, e.g. targets · CPC title

• C03C23/0095

  Solution impregnating; Solution doping; Molecular stuffing, e.g. of porous glass (in manufacture of preforms C03B37/012) · CPC title

• C03C2214/12

  Polymers · CPC title

• C03C2214/30

  Methods of making the composites · CPC title