| abstract |
The material described in this patent is created based on the caked natural bone material with a fine porous structure closed to the natural bond material, however the X - ray investigation of it indicates more than 99 percent hydroxylapatite. This material is produced with the use of the procedure, based on that principle, that the bond mass has no organic part and it is treated with the use of organic acid water solution, while this organic acid is chosen of the acid group related to mono carboxylic acids with 1 up to 5 carbon atoms, like a malonic acid, tartronic acid, succinic acid, tartaric acid, citric acid, as for instance, and after that this material is undertaken to caking, at the temperature of 900 up to 1400 degrees. |