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

Patent metadata

Field	Value
Publication number	US-10858880-B2
Application number	US-201816151643-A
Country	US
Kind code	B2
Filing date	Oct 4, 2018
Priority date	Feb 22, 2011
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

Certain example embodiments relate to 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 composition may be combined with a binder solution that substantially or completely burns out by the time the composition is melted. In certain example embodiments, a vacuum insulated glass unit includes first and second glass substrates that are sealed together with a seal that included the above-described composition.

First claim

What is claimed is:

1. A method of making a vacuum insulated glass (VIG) window unit, the method comprising:
providing a sealing material on, directly or indirectly, a first glass substrate and/or a second glass substrate;
providing the first and second glass substrates in substantially parallel, spaced apart relation to one another, where the sealing material is provided on at least one of the glass substrates, and a gap being defined between the first and second substrates, and wherein at least a portion of the sealing material is located between the first and second glass substrates;
melting the sealing material at least at a melting temperature, the melting temperature being less than about 400 degrees C., so that after the melting, and curing, the first and second glass substrates are sealed to each other directly or indirectly in making the VIG window unit, and
wherein the sealing material is formed from a base composition comprising:

Ingredient
Normalized Mole %

vanadium oxide
>=35%

barium oxide
15-35% 

zinc oxide
<=25%

tellurium oxide
 1-10%

molybdenum oxide
 1-6%,

wherein the vanadium oxide, the barium oxide, and the zinc oxide are the largest three elements making up the base composition of the sealing material.

2. The method of claim 1 , further comprising evacuating the gap between the first and second glass substrates to a pressure less than atmospheric pressure after a seal has been formed via at least said sealing material.

3. A method of making a vacuum insulated glass (VIG) window unit, the method comprising:
providing a sealing material on, directly or indirectly, a first glass substrate and/or a second glass substrate, the sealing material comprising at least a frit material;
providing the first and second glass substrates in substantially parallel, spaced apart relation to one another, where the sealing material is provided on at least one of the first and second glass substrates, and wherein at least a portion of the sealing material is located between the first and second glass substrates;
melting the frit material at least at a melting temperature, the melting temperature being less than about 400 degrees C., so that after the melting and after a curing the first and second glass substrates are sealed to each other, directly or indirectly, in making the VIG window unit, and
wherein the frit material is formed from a base composition comprising:

Ingredient
Normalized Mole %

vanadium oxide
>=35%

barium oxide
15-35% 

zinc oxide
<=25%

tellurium oxide
 1-10%

molybdenum oxide
 1-6%,

wherein the vanadium oxide, the barium oxide, and the zinc oxide are the largest three elements making up the base composition of the frit material.

Assignees

• Guardian Glass Llc

Inventors

• Dennis Timothy A

Classifications

• C03C2207/00

  Compositions specially applicable for the manufacture of vitreous enamels · CPC title

• Y02A30/249

  Glazing, e.g. vacuum glazing · 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

• E06B3/6612

  Evacuated glazing units · CPC title

• E06B3/673

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