Method of reducing gaseous inclusions in a glass making process
US7854144B2 · kind B2 · utility
11Cited by
24References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2007 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Apr 18, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B5/225
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Feed materials are melted in a first vessel to form a glass melt at a first temperature T1, the glass melt containing at least one fining agent. The molten glass is next cooled to a second temperature T2 less than T1 in a second vessel wherein an oxygen-comprising gas is not actively added (e.g. bubbled) into the melt during the duration of the time the melt is at T2. The molten glass is thereafter heated to a third temperature T3 greater than T1 and subsequently formed into a glass article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.