FR2856673A1 - CALCIUM PHOSPHATE PARTICLES AND PROCESS FOR THE PREPARATION THEREOF - Google Patents

CALCIUM PHOSPHATE PARTICLES AND PROCESS FOR THE PREPARATION THEREOF

Info

Publication number
FR2856673A1
FR2856673A1 FR0307880A FR0307880A FR2856673A1 FR 2856673 A1 FR2856673 A1 FR 2856673A1 FR 0307880 A FR0307880 A FR 0307880A FR 0307880 A FR0307880 A FR 0307880A FR 2856673 A1 FR2856673 A1 FR 2856673A1
Authority
FR
France
Prior art keywords
calcium phosphate
particles
relates
diameter
mercury
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.)
Pending
Application number
FR0307880A
Other languages
French (fr)
Inventor
Ching Jean Yves Chane
Cedric Boissiere
Stephen Mann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodia Chimie SAS
Original Assignee
Rhodia Chimie SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rhodia Chimie SAS filed Critical Rhodia Chimie SAS
Priority to FR0307880A priority Critical patent/FR2856673A1/en
Priority to PCT/FR2004/001666 priority patent/WO2005003028A2/en
Publication of FR2856673A1 publication Critical patent/FR2856673A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Cosmetics (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

L'invention concerne des particules de plaquettes de phosphate de calcium à structure monétite dont l'épaisseur des plaquettes est comprise entre 0,005 m et 0,2 m, le volume poreux correspondant aux pores de diamètre inférieur à 1 m, mesuré au mercure, est d'au moins 0,30 ml/g, et présentant un diamètre moyen, d50, compris entre 5 m et 15 m.L'invention propose également des particules de fibres de phosphate de calcium à structure apatite dont le volume poreux mesuré au mercure et correspondant aux pores de diamètre inférieur à 1 micron est d'au moins 0,5 ml/g, la surface spécifique est d'au moins 150 m2/g et dont le diamètre moyen, d50, est compris entre 5 m et 15 m.L'invention concerne aussi un procédé pour préparer les particules de phosphate de calcium selon l'invention.Enfin l'invention a également pour objet l'utilisation des particules selon l'invention ou des particules obtenues selon le procédé de l'invention comme charge de renfort, charge d'isolation thermique, excipient pharmaceutique, agent de polissage, agent de support, matériaux de construction, additif pour les formulations bucco-dentaires notamment les dentifrices ou agent d'encapsulation.The invention relates to particles of calcium phosphate platelets with a monetite structure, the thickness of the platelets of which is between 0.005 m and 0.2 m, the pore volume corresponding to pores with a diameter of less than 1 m, measured with mercury, is of at least 0.30 ml/g, and having an average diameter, d50, of between 5 m and 15 m.The invention also proposes particles of calcium phosphate fibers with an apatite structure whose pore volume measured with mercury and corresponding to pores with a diameter of less than 1 micron is at least 0.5 ml/g, the specific surface is at least 150 m2/g and whose average diameter, d50, is between 5 m and 15 m The invention also relates to a process for preparing the calcium phosphate particles according to the invention. Finally, the invention also relates to the use of the particles according to the invention or of the particles obtained according to the process of the invention as reinforcing filler, thermal insulation filler, phar excipient maceutical, polishing agent, support agent, building materials, additive for oral formulations in particular toothpastes or encapsulating agent.

FR0307880A 2003-06-30 2003-06-30 CALCIUM PHOSPHATE PARTICLES AND PROCESS FOR THE PREPARATION THEREOF Pending FR2856673A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0307880A FR2856673A1 (en) 2003-06-30 2003-06-30 CALCIUM PHOSPHATE PARTICLES AND PROCESS FOR THE PREPARATION THEREOF
PCT/FR2004/001666 WO2005003028A2 (en) 2003-06-30 2004-06-29 Calcium phosphate particles and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0307880A FR2856673A1 (en) 2003-06-30 2003-06-30 CALCIUM PHOSPHATE PARTICLES AND PROCESS FOR THE PREPARATION THEREOF

Publications (1)

Publication Number Publication Date
FR2856673A1 true FR2856673A1 (en) 2004-12-31

Family

ID=33515519

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0307880A Pending FR2856673A1 (en) 2003-06-30 2003-06-30 CALCIUM PHOSPHATE PARTICLES AND PROCESS FOR THE PREPARATION THEREOF

Country Status (2)

Country Link
FR (1) FR2856673A1 (en)
WO (1) WO2005003028A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10239960B2 (en) 2015-06-10 2019-03-26 Rhodia Operations Phosphonated polysaccharides and gels and process for making same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427754A (en) * 1993-01-11 1995-06-27 Agency Of Industrial Science & Technology Method for production of platelike hydroxyapatite
JPH11209107A (en) * 1998-01-26 1999-08-03 Mitsubishi Materials Corp Calcium phosphate long fiber assemblage and its production
JP2000128513A (en) * 1998-10-29 2000-05-09 New Raimu Kenkyusha:Kk Calcium phosphate based compound having platelike grain structure provided with opening and its production
JP2001261314A (en) * 2000-03-21 2001-09-26 Natl Inst Of Advanced Industrial Science & Technology Meti Composite material and method of producing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427754A (en) * 1993-01-11 1995-06-27 Agency Of Industrial Science & Technology Method for production of platelike hydroxyapatite
JPH11209107A (en) * 1998-01-26 1999-08-03 Mitsubishi Materials Corp Calcium phosphate long fiber assemblage and its production
JP2000128513A (en) * 1998-10-29 2000-05-09 New Raimu Kenkyusha:Kk Calcium phosphate based compound having platelike grain structure provided with opening and its production
JP2001261314A (en) * 2000-03-21 2001-09-26 Natl Inst Of Advanced Industrial Science & Technology Meti Composite material and method of producing the same

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199941, Derwent World Patents Index; Class D21, AN 1999-488652, XP002275818 *
DEPTULA A. & AL.: "Complex sol-gel process (CSGP) preparatoin of calcium phosphate biomaterials (powders, monoliths, fibers)", PROCEEDINGS OF THE 11TH INTERNATIONAL SYMPOSIUM ON CERAMICS IN MEDECINE, NEW YORK, USA, no. 11, November 1998 (1998-11-01), pages 743 - 746, XP008029406 *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 08 6 October 2000 (2000-10-06) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 26 1 July 2002 (2002-07-01) *

Also Published As

Publication number Publication date
WO2005003028A2 (en) 2005-01-13
WO2005003028A3 (en) 2005-06-23

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