Controlled dissolution of quartz
US5397430A · kind A · utility
2Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1993 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jul 6, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K13/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Quartz sections having a surface condition as polished as possible are prepared by controlled dissolution by placing said quartz sections in a bath of a quartz solvent or a mixture of solvents, wherein the bath is basic and comprises an alkaline hydroxide or fluoride, or ammonium hydroxide, or a mixture of these compounds; and conducting controlled dissolution of the quartz sections at atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.