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

Patent metadata

Field	Value
Publication number	US-10087676-B2
Application number	US-201615001382-A
Country	US
Kind code	B2
Filing date	Jan 20, 2016
Priority date	Feb 22, 2011
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

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) 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:

(Ingredient)
(Normalized Mole %)

vanadium oxide
33-55%, 

barium oxide
15-35%, 

MoO 3
  1-6%;

TeO 2
  0-6%;

Ta 2 O 5
0.5-5%;

Nb 2 O 5
0.5-6%;

and
wherein the materials with the three highest normalized mole % in the frit material are vanadium oxide, zinc oxide, and barium oxide.

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:

(Normalized

(Ingredient)
Mole %)

vanadium oxide
33-55%,

barium oxide
15-35%,

MoO 3
1-6%;

TeO 2
0-6%;

Ta 2 O 5
0.5-5%;  

Nb 2 O 5
0.5-6%;  

and
wherein the materials with the three highest normalized mole % in the frit material are vanadium oxide, zinc oxide, and barium oxide.

Assignees

• Guardian Glass Llc

Inventors

• Dennis Timothy A

Classifications

• E06B3/667

  Connectors therefor · CPC title

• E06B3/66357

  Soldered connections or the like · CPC title

• E06B3/66342

  characterised by their sealed connection to the panes · CPC title

• E06B3/6612 Primary

  Evacuated glazing units · CPC title

• C03C8/04

  containing zinc · CPC title