Patent ID: 9561305
Date: 2017-02-07
CPC Classifications: A61L,A61P,C01B,Y10T

Claim:
1. A method for producing a hydroxylapatite material comprising: subjecting a nanoscale hydroxylapatite paste with a solid content ranging from 10% to 60% comprising needle-shaped particles with an average length of less than 200 nm to a thermal treatment at an annealing temperature between 500° C. and 1100 C, which is below a sintering temperature, and with a holding time between 30 minutes and 10 hours, thereby producing a form-stable friable granulated material with a friability F between 50 and 500, wherein said nanoscale hydroxylapatite paste is formed into granule preform bodies prior to the thermal treatment, and wherein a water content of the paste is adjusted so that the paste is sufficiently viscous that the granule preform bodies do not run.