Fiberizable glass
US4303446A · kind A · utility
2Cited by
0References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1980 |
| Grant date | Dec 1, 1981 |
| Priority date | — |
| Expiry date | Sep 8, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C13/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A lead-free, fiberizable glass composition. The glass is characterized by a relatively low hardness rating and is accordingly useful in preparing friction surfaces. Its composition includes, on a weight basis, from about 45% to about 75% of silicon dioxide, from about 15% to about 30% of potassium oxide and from about 2% to about 10% of magnesium oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.