Water soluble glass composition
US6528443B1 · kind B1 · utility
8Cited by
9References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Jan 18, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C13/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composition for a water soluble glass is described. The composition is unusual in that it contains no or very small quantities (up to 5 mole %) of alkali earth metal compounds. The composition typically comprises P2O5: 40 to 60 mole %; B2O3: 0 to 10 mole %; Na2O: 30 to 40 mole %; K2O: 5 to 10 mole %; Ag2O: 0 to 5 mole %; and up to a total of 5 mole % of other compounds such as CaO, MgO etc. The composition is especially suitable for processing into water soluble glass fibers or wool since the melting point is very low, usually less than 350° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.