JPS6418949A - Production of powder agent for calcium phosphate based hardened body - Google Patents
Production of powder agent for calcium phosphate based hardened bodyInfo
- Publication number
- JPS6418949A JPS6418949A JP62172445A JP17244587A JPS6418949A JP S6418949 A JPS6418949 A JP S6418949A JP 62172445 A JP62172445 A JP 62172445A JP 17244587 A JP17244587 A JP 17244587A JP S6418949 A JPS6418949 A JP S6418949A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxyapatite
- phosphate
- powder agent
- production
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Materials For Medical Uses (AREA)
- Dental Preparations (AREA)
Abstract
PURPOSE:To obtain the titled uniform powder agent having high activity, by calcining a specific hydroxyapatite under reduced pressure and forming a mixture of tricalcium alpha-phosphate and tetracalcium phosphate. CONSTITUTION:A hydroxyapatite is thermally decomposed by burning a hydroxyapatite capable of readily synthesizing by wet type method and having 1.5-1.8 Ca/P ratio at >=1,150 deg.C under reduced pressure to afford tricalcium alpha-phosphate and tetracalcium phosphate and the mixture of tricalcium alpha-phosphate and tetracalcium phosphate is obtained. Used hydroxyapatite can be readily synthesized e.g. by reacting phosphoric acid water solution with calcium hydroxide suspension. The hydroxyapatite is preferably thermally decomposed at a calcining state of 1,150-1,450 deg.C and <=10Pa pressure, especially <=10<-2>Pa pressure.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172445A JPS6418949A (en) | 1987-07-10 | 1987-07-10 | Production of powder agent for calcium phosphate based hardened body |
EP91102716A EP0436499B1 (en) | 1987-07-10 | 1988-07-08 | A process for producing a calcium phosphate type powder |
EP88110950A EP0298501B1 (en) | 1987-07-10 | 1988-07-08 | Composition for forming calcium phosphate type hardening material and process for producing such hardening material |
DE8888110950T DE3869850D1 (en) | 1987-07-10 | 1988-07-08 | COMPOSITION FOR PRODUCING A HARDENABLE CALCIUM PHOSPHATE-LIKE MATERIAL AND METHOD FOR PRODUCING SUCH A MATERIAL. |
DE3855611T DE3855611T2 (en) | 1987-07-10 | 1988-07-08 | Process for producing a calcium phosphate powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172445A JPS6418949A (en) | 1987-07-10 | 1987-07-10 | Production of powder agent for calcium phosphate based hardened body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6418949A true JPS6418949A (en) | 1989-01-23 |
JPH0549618B2 JPH0549618B2 (en) | 1993-07-26 |
Family
ID=15942115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62172445A Granted JPS6418949A (en) | 1987-07-10 | 1987-07-10 | Production of powder agent for calcium phosphate based hardened body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6418949A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06172008A (en) * | 1992-12-04 | 1994-06-21 | Mitsuo Kondo | Hardenable composition |
US5776669A (en) * | 1990-06-28 | 1998-07-07 | Eastman Kodak Company | Phenol substituted pyrazolo 1, 5-a benzimidazole couplers |
KR20140024850A (en) * | 2011-01-27 | 2014-03-03 | 시림 버해드 | A method of converting limestone into tri-calcium phosphate and tetra-calcium phosphate powder simultaneously |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56166843A (en) * | 1980-05-28 | 1981-12-22 | Mitsubishi Mining & Cement Co | Filler for bone broken section and void section |
JPS63115567A (en) * | 1986-11-04 | 1988-05-20 | 住友大阪セメント株式会社 | Artificial joint fixing material |
-
1987
- 1987-07-10 JP JP62172445A patent/JPS6418949A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56166843A (en) * | 1980-05-28 | 1981-12-22 | Mitsubishi Mining & Cement Co | Filler for bone broken section and void section |
JPS63115567A (en) * | 1986-11-04 | 1988-05-20 | 住友大阪セメント株式会社 | Artificial joint fixing material |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5776669A (en) * | 1990-06-28 | 1998-07-07 | Eastman Kodak Company | Phenol substituted pyrazolo 1, 5-a benzimidazole couplers |
JPH06172008A (en) * | 1992-12-04 | 1994-06-21 | Mitsuo Kondo | Hardenable composition |
KR20140024850A (en) * | 2011-01-27 | 2014-03-03 | 시림 버해드 | A method of converting limestone into tri-calcium phosphate and tetra-calcium phosphate powder simultaneously |
JP2014509294A (en) * | 2011-01-27 | 2014-04-17 | シリム バーハド | Method for simultaneously converting limestone into tricalcium phosphate and tetracalcium phosphate powders |
Also Published As
Publication number | Publication date |
---|---|
JPH0549618B2 (en) | 1993-07-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |