Reactive tricalcium phosphate compositions

Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C01B 2532

Patent

active

058855408

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.

REFERENCES:
patent: 2095994 (1937-10-01), MacIntire
patent: 4612053 (1986-09-01), Brown et al.
patent: 4693986 (1987-09-01), Vit et al.
patent: 5053212 (1991-10-01), Constantz et al.
patent: 5152836 (1992-10-01), Hirano et al.
patent: 5178845 (1993-01-01), Constantz et al.
patent: 5322675 (1994-06-01), Hakamatsuka et al.
patent: 5338356 (1994-08-01), Hirano et al.
patent: 5525148 (1996-06-01), Chow et al.
patent: 5571493 (1996-11-01), Fulmer et al.
patent: 5580623 (1996-12-01), Fulmer et al.
Iijima, et al., "Properties of Apatite Cement Composed of .alpha.-Tricalcium Phosphate and Tetracalcium Phosphate" Gypsum & Lime (1992) vol.238:159.
Monma, et al., "Properties of Hydroxyapatite Prepared by the Hydrolysis of Tricalcium Phosphate", J. Chem Tech. Biotechnol. (1981) vol.31:15-24.
Monma, "On Hydraulic calcium Phosphates" MRS Int'l. Mtg. on Adv. Mats., Materials Research Society (1989) vol.13 15-25.
Lemaitre, et al., "Calcium Phosphate Cements for Medical Use: State of the Art and Perspectives of Development", Silicates Industriels (1987) 141-146.
Wang, "Treatise on Materials Science and Technology", Academic Press (1976) 9:iii-33.
Richerson, "Modern Ceramic Engineering, Properties, Processing, and Use in Design" Marcel Dekker, Inc. (1982) 147-177.
Mirtchi, et al., Biomaterials (1990) vol. 11:84.
Mirtchi, et al., Biomaterials (1991) vol.12:505.
Mirtchi, et al., Biomaterials (1989) vol.10:475.
Bhavnagary, et al., "Preparation of Tri-calcium Phosphate by hydrolsis of Diacalcium Phosphate with Calcium Hydroxide" J. Appl. Chem. Biotechnol. (1977) vol.27:393-398.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Reactive tricalcium phosphate compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reactive tricalcium phosphate compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reactive tricalcium phosphate compositions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2122431

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.