Process for preparing high purity bone mineral
US5167961A · kind A · utility
32Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1990 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Apr 2, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S530/84
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a process for the preparation of high purity bone mineral wherein the organic matter is degraded by heating with ammonia or a primary amine, characterized in that the solubilized degradation products are extracted by washing with flowing water at temperature below 60.degree. C., such heating with primary amine and washing steps optionally being repeated, whereby substantially all organic matter removable by these steps is removed, the bone mineral so treated being heated in air at temperatures between 250.degree. C. and 600.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.