Glass fiber composition with improved biosolubility
US5401693A · kind A · utility
61Cited by
23References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1992 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Sep 18, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2213/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Described is an inorganic fiber comprising silica dioxide, calcium oxide, and alkali oxide having a free energy of hydration greater than (more positive than) -5.00 kcal/mol, an enthalpy of formation less than (more than negative than) -210.0 kcal/mol, a dissolution rate in simulated extra cellular fluid greater than 750 (calculated as nanograms of fiber/per square centimeter of fiber surface area/per hour) having an average fiber diameter not greater than 4.5 micrometers. Also described is a method of manufacturing the fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.