Binder systems
US5886092A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Jun 6, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are methods for preparing carbon-containing materials resistant to alkali metal disruption, and compositions suitable for the preparation of carbon-containing materials resistant to alkali metal disruption. A composition in accordance with the invention comprises a mixture of (a) a binder phase having a viscosity of less than 10 Pascal seconds and a char yield in excess of 20% upon heating to a temperature of 800.degree.-1200.degree. C., and comprising at least one polymerizable resin and (b) particles of a solid material which is thermally stable at a temperature of 800.degree.-1200.degree. C., the particles having a granulometry wherein void spaces between the particles have a size of less than 20 .mu.m in diameter and the particles are coated with a layer of binder phase having a thickness of less than 2 .mu.m. When the composition is carbonized by heating to a temperature of 800.degree.-1200.degree. C., the composition forms a carbon-containing material resistant to alkali metal disruption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.