Vanadium-based frit materials, and/or methods of making the same

• US 10,087,676 B2
• Filed: 01/20/2016
• Issued: 10/02/2018
• Est. Priority Date: 02/22/2011
• Status: Active Grant

• Current Assignee: Guardian Glass LLC (KOCH Industries Incorporated)
• Original Assignee: Guardian Glass LLC (KOCH Industries Incorporated)
• Inventors: Dennis, Timothy A.
• Primary Examiner(s): Loney, Donald J
• Application Number:
  US15/001,382
• Publication Number:
  US 20160138325A1
• Time in Patent Office: 986 Days
• CPC Class Codes: C03C 8/04 containing zinc
• CPC Class Codes: C03C 8/24 Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders
• CPC Class Codes: E06B 3/6612 Evacuated glazing units
• CPC Class Codes: E06B 3/663 Elements for spacing panes
• CPC Class Codes: E06B 3/66342 characterised by their sealed connection to the panes
• CPC Class Codes: E06B 3/66357 Soldered connections or the like
• CPC Class Codes: E06B 3/667 Connectors therefor
• CPC Class Codes: E06B 3/677 Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes by means of spacing elements E06B3/663; Cleaning the gap between the panes

Abstract

Certain example embodiments relate to improved seals for glass articles. Certain example embodiments relate to a composition used for sealing an insulted glass unit. In certain example embodiments the composition includes vanadium oxide, barium oxide, zinc oxide, and at least one additional additive. For instance, another additive that is a different metal oxide or different metal chloride may be provided. In certain example embodiments, a vacuum insulated glass unit includes first and second glass substrates that are sealed together with a seal that includes the above-described composition.

Claims

1. A vacuum insulated glass (VIG) window unit, comprising:

first and second substantially parallel, spaced apart thermally tempered glass substrates;

an edge seal provided around a periphery of the first and second thermally tempered glass substrates to form a hermetic seal therebetween and at least partially defining a gap between the first and second thermally tempered glass substrates,

wherein the gap of the vacuum insulated glass (VIG) window unit is provided at a pressure less than atmospheric,

wherein the edge seal is formed from a frit material at least initially having a composition comprising zinc oxide and;

2. The VIG unit of claim 1, wherein the frit material has a melting temperature less than or equal to 400 degrees C.

3. A vacuum insulated glass (VIG) window unit, comprising:

first and second substantially parallel, spaced apart glass substrates;

an edge seal provided around a periphery of the first and second glass substrates to form a hermetic seal therebetween and at least partially defining a gap between the first and second glass substrates,

wherein the gap of the vacuum insulated glass (VIG) window unit is provided at a pressure less than atmospheric,

wherein the edge seal is formed from a frit material at least initially having a composition comprising zinc oxide and;