Ultra low melting glass frit and fibers

Patent metadata

Field	Value
Publication number	US-11560328-B2
Application number	US-201515117954-A
Country	US
Kind code	B2
Filing date	Feb 11, 2015
Priority date	Feb 13, 2014
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

Disclosed herein are methods for forming low melting point glass fibers comprising providing a glass feedstock comprising a low melting point glass and melt-spinning the glass feedstock to produce glass fibers, wherein the glass transition temperature of the glass fibers is less than or equal to about 120% of the glass transition temperature of the glass feedstock. The disclosure also relates to method for forming low melting point glass frit further comprising jet-milling the glass fibers. Low melting point glass frit and fibers produced by the methods described above are also disclosed herein.

First claim

What is claimed is:

1. A glass comprising on an elemental weight percent basis:
59% to 89% Sn;
0% to 13% P;
6% to 25% O;
0% to 12% F;
wherein Sn+P+0+F of the glass is at least about 75%;
wherein the glass is substantially free of lead;
wherein the glass comprises frit having an average particle size diameter of less than or equal to 150 microns and a glass transition temperature of less than 200° C.

2. The glass of claim 1 , wherein the glass further comprises long thin melted glass strands intermixed with one another in wool-like structure and having a strand thickness of less than about 500 microns.

Assignees

• Corning Inc

Inventors

• Dabich Ii Leonard Charles
• Quesada Mark Alejandro
• Koval Shari Elizabeth
• Tick Paul Arthur

Classifications

• C03C8/24

  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 title

• C03C8/06

  containing halogen · CPC title

• C03C13/00

  Fibre or filament compositions (manufacture of fibres or filaments C03B37/00) · CPC title

• C03B37/055

  by projecting onto and spinning off the outer surface of the rotating body · CPC title

• C03B37/01 Primary

  Manufacture of glass fibres or filaments · CPC title