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

Patent metadata

Field	Value
Publication number	US-11014847-B2
Application number	US-201916258842-A
Country	US
Kind code	B2
Filing date	Jan 28, 2019
Priority date	Feb 22, 2011
Publication date	May 25, 2021
Grant date	May 25, 2021

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.

First claim

What is claimed is:

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:

Ingredient
Wt. %

vanadium oxide
~50-60%

barium oxide
~27-33%

zinc oxide
 ~9-12%

niobium oxide
  ~2-8%.

2. The vacuum insulated glass (VIG) unit of claim 1 , wherein the niobium oxide comprises Nb 2 O 5 .

Assignees

• Guardian Glass Llc

Inventors

• Dennis Timothy A

Classifications

• E06B3/66357

  Soldered connections or the like · CPC title

• C03C3/122

  containing oxides of As, Sb, Bi, Mo, W, V, Te as glass formers · CPC title

• C03C8/04 Primary

  containing zinc · CPC title

• C03C8/24 Primary

  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 title

• E06B3/673

  Assembling the units (E06B3/677 takes precedence {; making hollow glass sheets or bricks C03B23/24}) · CPC title