Title:
ORAL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/074441
Kind Code:
A1
Abstract:
The present invention relates to an oral composition which can remove deposited stains in interprismatic spaces on enamel surface layers of teeth selectively and effectively and can also prevent the adherence and deposition of new stains effectively to provide beautiful gloss that the teeth originally have had.
Namely, the present invention is an oral composition containing (A) phytic acid or a salt thereof and (B) tripolyphosphoric acid or a salt thereof, wherein the sum total of the content of the component (A) in terms of phytic acid content and the content of the component (B) in terms of acid content is a specified value, the ratio of the mass of the component (B) in terms of acid content to the mass of the component (A) in terms of phytic acid content ((B)/(A)) is a specified value, a specific polyvalent metal or a salt thereof (C) is not contained or the component (C) is contained in an amount of less than 0.1 time the number of moles of the component (A) in terms of phytic acid content, and the pH value of a solution prepared by diluting the oral composition with water at a concentration of 30% by mass is 5.5 to 6.5 inclusive at 25°C.
Inventors:
NAGATA RYOSUKE (JP)
Application Number:
PCT/JP2017/037454
Publication Date:
April 26, 2018
Filing Date:
October 17, 2017
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
A61K8/55; A61K8/21; A61K8/34; A61K8/73; A61Q11/00
Domestic Patent References:
| WO2015190402A1 | 2015-12-17 |
Foreign References:
| JP2012116767A | 2012-06-21 | |||
| JP2014125425A | 2014-07-07 | |||
| JP2008081424A | 2008-04-10 | |||
| JP2010120880A | 2010-06-03 | |||
| JP2014114240A | 2014-06-26 | |||
| JP2012219058A | 2012-11-12 |
Attorney, Agent or Firm:
THE PATENT CORPORATE BODY ARUGA PATENT OFFICE (JP)
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