METHOD FOR PRODUCING CALCIUM CARBONATE BLOCKS

Title:

METHOD FOR PRODUCING CALCIUM CARBONATE BLOCKS

Document Type and Number:

WIPO Patent Application WO/2016/052502

Kind Code:

A1

Abstract:

The present invention addresses the problem of providing a method for producing calcium carbonate blocks applicable as a raw material for artificial bone required to have biological safety, wherein the calcium carbonate blocks each have a diameter of 0.1 cm or more and a thickness of 0.1 cm or more and are free from impurities. The method comprises (a) a calcium hydroxide block forming step, (b) a carbon dioxide contact step, and (c) a carbonate ion-containing aqueous solution immersion step.

Inventors:

ISHIKAWA KUNIO (JP)
YAMAMOTO KATSUSHI (JP)

Application Number:

PCT/JP2015/077513

Publication Date:

April 07, 2016

Filing Date:

September 29, 2015

Export Citation:

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Assignee:

G C DENTAL IND CORP (JP)
UNIV KYUSHU NAT UNIV CORP (JP)

International Classes:

C01F11/18; A61L27/00

Foreign References:

JPS50149599A	1975-11-29
JPH08198659A	1996-08-06
JPS5935024A	1984-02-25
JPS63104647A	1988-05-10
JP2015066087A	2015-04-13

Other References:

SHIGEKI MATSUYA ET AL.: "Preparation of carbonated apatite monolith by treatment of calcium carbonate in phosphate solutions", THE JOURNAL OF THE JAPANESE SOCIETY FOR DENTAL MATERIALS AND DEVICES, vol. 22, no. 5, 25 August 2003 (2003-08-25), pages 406, XP009501549
TETSURO OIKE ET AL.: "Phenomenological Analysis on Strength Development of Casting Calcium Carbonate", JOURNAL OF THE SOCIETY OF INORGANIC MATERIALS, vol. 18, no. 352, 1 May 2011 (2011-05-01), Japan, pages 123 - 127, XP009501551
See also references of EP 3202714A4

Attorney, Agent or Firm:

YAMAMOTO, Noriaki et al. (JP)
Yamamoto 典輝 (JP)

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