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1. WO2020138422 - HYDROXYAPATITE PARTICULATE

Publication Number WO/2020/138422
Publication Date 02.07.2020
International Application No. PCT/JP2019/051429
International Filing Date 27.12.2019
IPC
C01B 25/32 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
25Phosphorus; Compounds thereof
16Oxyacids of phosphorus; Salts thereof
26Phosphates
32Phosphates of magnesium, calcium, strontium, or barium
A61Q 11/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
11Preparations for care of the teeth, of the oral cavity or of dentures, e.g. dentifrices or toothpastes; Mouth rinses
A61K 8/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
A61K 8/24 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
19containing inorganic ingredients
24Phosphorus; Compounds thereof
A61K 33/42 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
33Medicinal preparations containing inorganic active ingredients
42Phosphorus; Compounds thereof
CPC
A61K 33/42
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
33Medicinal preparations containing inorganic active ingredients
42Phosphorus; Compounds thereof
A61K 8/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
A61K 8/24
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
19containing inorganic ingredients
24Phosphorous; Compounds thereof
A61Q 11/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
11Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
C01B 25/32
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
25Phosphorus; Compounds thereof
16Oxyacids of phosphorus; Salts thereof
26Phosphates
32Phosphates of magnesium, calcium, strontium, or barium
Applicants
  • シライシ カルシウム(シンガポール) プライベート リミテッド SHIRAISHI CALCIUM(SINGAPORE) PTE., LTD. [SG]/[SG]
  • 白石工業株式会社 SHIRAISHI KOGYO KAISHA, LTD. [JP]/[JP]
Inventors
  • 岸 昂平 KISHI, Kohei
  • 梅本 奨大 UMEMOTO, Shota
Agents
  • 特許業務法人三枝国際特許事務所 SAEGUSA & PARTNERS
Priority Data
2018-24502427.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) HYDROXYAPATITE PARTICULATE
(FR) PARTICULES D'HYDROXYAPATITE
(JA) ヒドロキシアパタイト微粒子
Abstract
(EN)
The present invention addresses the problem of providing a particle which has the ability to seal dentinal tubules and exhibits excellent adhesion in dentinal tubules. In order to solve the problem, provided is a hydroxyapatite particulate which is an aggregate of particles, wherein the ratio of a diffraction peak intensity around 2θ = 32° to a diffraction peak intensity around 2θ = 26° in an X-ray diffraction pattern measured using a CuKα ray is 0.8-1.6.
(FR)
La présente invention aborde le problème de la fourniture d'une particule qui a la capacité de sceller les tubules dentinaires et présente une excellente adhérence dans les tubules dentinaires. Afin de résoudre le problème, l'invention concerne une particule d'hydroxyapatite qui est un agrégat de particules, le rapport d'une intensité de pic de diffraction autour de 2θ = 32° à une intensité de pic de diffraction autour de 2θ = 26° dans un motif de diffraction de rayons X mesuré à l'aide d'un rayon CuKα étant de 0,8 à 1,6.
(JA)
象牙細管の封鎖性を有し、且つ象牙細管内での固着性に優れた粒子を提供することを課題とし、該課題を、CuKα線を使用して測定したX線回折パターンにおける2θ=26°付近の回折ピーク強度に対する2θ=32°付近の回折ピーク強度の比が0.8~1.6であり、且つ粒子の凝集体である、ヒドロキシアパタイト微粒子、により解決する。
Also published as
JP2020562499
Latest bibliographic data on file with the International Bureau