Method of making controlled pore glass
US9731996B1 · kind B1 · utility
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9Claims
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Key dates
| Filing date | Oct 7, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Oct 7, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C11/005
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This disclosure provides methods of manufacturing a controlled pore glass, including: (a) adding an acidic solution to a column containing borosilicate glass; (b) flushing the column from step (a) with an aqueous solution until the pH of the effluent is greater than about 6; (c) adding a basic solution to the column from step (b); and (d) flushing the column from step (c) with an aqueous solution until the pH of the effluent is less than about 9 to produce a controlled pore glass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.