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

• US 11,014,847 B2
• Filed: 01/28/2019
• Issued: 05/25/2021
• 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): Group, Karl E
• Application Number:
  US16/258,842
• Publication Number:
  US 20190152839A1
• Time in Patent Office: 848 Days
• CPC Class Codes: C03C 2205/00 Compositions applicable for the manufacture of vitreous enamels or glazes
• CPC Class Codes: C03C 27/06 Joining glass to glass by processes other than fusing fusing C03B23/20; units for use as elements for closing wall or like openings and comprising two or more parallel glass panes in spaced relationship, the panes being permanently secured together E06B3/66
• CPC Class Codes: C03C 8/04 containing zinc
• CPC Class Codes: C03C 8/06 containing halogen
• 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 3/673 Assembling the units E06B3/677 takes precedence ; making hollow glass sheets or bricks C03B23/24

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) unit, comprising:

first and second glass substrates spaced apart from each other;

an edge seal provided proximate a periphery of the VIG unit for sealing a gap between the first and second glass substrates;

wherein the gap is at pressure less than atmospheric pressure;

a plurality of spacers provided in the gap for spacing at least the first and second glass substrates from each other;

wherein the edge seal includes;

2. The vacuum insulated glass (VIG) unit of claim 1, wherein the niobium oxide comprises Nb₂O₅.