Supercritical fluid extraction
US6773473B2 · kind B2 · utility
6Cited by
9References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Nov 12, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D3/005
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method is provided for fabricating an abrasive article having porosity. The method includes blending a mixture of abrasive grain, bond material, and pore inducer, in which the pore inducer is soluble in a supercritical fluid, and the abrasive grain and bond material are substantially insoluble in the supercritical fluid. The mixture is pressed into an abrasive laden composite and exposed to the supercritical fluid for a period of time suitable to dissolve at least a portion of the pore inducer. The composite is thermally processed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.