Method for producing glass
US5019146A · kind A · utility
8Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Apr 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/901
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing a uniform glass of a large size without forming bubbles and holes at the bottom thereof is provided. This method comprises concentrating a sol solution obtained by hydrolysis of a metal alkoxide such as alkoxide of silicon in the presence of an organic solvent and ammonia water until a volume of the sol solution reaches 1.00-1.95 times the volume of the charged metal alkoxide, then gelling the concentrated sol solution with addition of a mixed solution of an aqueous catalyst solution and an organic solvent, then drying the gel and heating the dry gel to sinter it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.