Reactive tricalcium phosphate compositions
US5709742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1996 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00836
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for producing a room temperature stable, phase pure .alpha.-C.sub.3 P product, and compositions derived therefrom, are provided. In the subject method, a tricalcium phosphate source is heated to a temperature sufficient to convert substantially all of said tricalcium phosphate source to a substantially phase pure .alpha.-C.sub.3 P product. The temperature of the resultant product is rapidly cooled to a temperature below about 700.degree. C., resulting in a room temperature stable, reactive .alpha.-C.sub.3 P product. The resultant .alpha.-C.sub.3 P product may be milled to provide an .alpha.-C.sub.3 P composition which may find use in the preparation of calcium phosphate cements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.