WO2005003028A3 - Calcium phosphate particles and production thereof - Google Patents

Calcium phosphate particles and production thereof Download PDF

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Publication number
WO2005003028A3
WO2005003028A3 PCT/FR2004/001666 FR2004001666W WO2005003028A3 WO 2005003028 A3 WO2005003028 A3 WO 2005003028A3 FR 2004001666 W FR2004001666 W FR 2004001666W WO 2005003028 A3 WO2005003028 A3 WO 2005003028A3
Authority
WO
WIPO (PCT)
Prior art keywords
particles
calcium phosphate
production
diameter
pores
Prior art date
Application number
PCT/FR2004/001666
Other languages
French (fr)
Other versions
WO2005003028A2 (en
Inventor
Jean-Yves Chane-Ching
Cedric Boissiere
Stephen Mann
Original Assignee
Rhodia Chimie Sa
Jean-Yves Chane-Ching
Cedric Boissiere
Stephen Mann
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 Sa, Jean-Yves Chane-Ching, Cedric Boissiere, Stephen Mann filed Critical Rhodia Chimie Sa
Publication of WO2005003028A2 publication Critical patent/WO2005003028A2/en
Publication of WO2005003028A3 publication Critical patent/WO2005003028A3/en

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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

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  • 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

The invention relates to particles of calcium phosphate platelets with a monetite structure, the thickness of the platelets being 0.005 µm to 0.2 µm, the porous volume, corresponding to pores with a diameter less than 1 µm, measured with mercury, is at least 0.30 ml/g and having a mean diameter, d50, of 5 µm to 15 µm. Also disclosed are particles of calcium phosphate fibres with apatite structure, the porous volume of which, measured by mercury porosimetry and corresponding to the pores with diameter less than 1 micron, is at least 0.40 ml/g, the specific surface of which is at least 150 m2/g and the means diameter, d50, is 5 µm to 15 µm. The invention further relates to a method for the production of said particles of calcium phosphate and the use of said particles, whereby the particles obtained are used as reinforcing filler, thermal insulation filler, pharmaceutical excipient, polishing agent, support material, construction materials, and additive for bucco-dental formulations such as toothpastes or as encapsulating agent.
PCT/FR2004/001666 2003-06-30 2004-06-29 Calcium phosphate particles and production thereof WO2005003028A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307880 2003-06-30
FR0307880A FR2856673A1 (en) 2003-06-30 2003-06-30 CALCIUM PHOSPHATE PARTICLES AND PROCESS FOR THE PREPARATION THEREOF

Publications (2)

Publication Number Publication Date
WO2005003028A2 WO2005003028A2 (en) 2005-01-13
WO2005003028A3 true WO2005003028A3 (en) 2005-06-23

Family

ID=33515519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/001666 WO2005003028A2 (en) 2003-06-30 2004-06-29 Calcium phosphate particles and production 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
FR2856673A1 (en) 2004-12-31

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