Oral composition
AssigneeKao Corporation
InventorsTsutomu Isobe, Gen Nakauchi, Yoshiyuki Eshita
Life of this patent
Estimating the term…
Abstract
Provided is an oral composition which is excellent in a gloss imparting effect on teeth. An oral composition, which comprises the following components (A) and (B): (A) 0.01 to 3% by mass of phytic acid or a salt thereof, and (B) 0.01 to 3% by mass of pyrophosphoric acid or a salt thereof, does not comprise a polyvalent cation or comprises a polyvalent cation in an amount of less than 0.1-fold mol relative to phytic acid, has pH 5.5 to 6.5 when diluted with water to 30% by mass, has the mass ratio (B/A) between the component (A) and the component (B) is 0.2 to 3.0, and does not comprise a fluoride or has the fluoride content of less than 500 ppm in terms of fluorine atoms.
Claims20
An oral composition, which comprises the following components (A) and (B):
- (A) 0.01 to 3% by mass of phytic acid or a salt thereof, and
- (B) 0.01 to 3% by mass of pyrophosphoric acid or a salt thereof, does not comprise a polyvalent cation or comprises a polyvalent cation selected from the group consisting of aluminum, calcium, magnesium, iron and zinc in an amount of less than 0.1-fold mol relative to phytic acid, has a pH of 5.5 to 6.5 when diluted with water to 30% by mass, has a mass ratio (B/A) between the component (A) and the component (B) of 0.2 to 3.0, and does not comprise a fluoride or has a fluoride content of less than 500 ppm in terms of fluorine atoms.
A method for imparting gloss to teeth, comprising applying an oral composition to teeth, wherein the composition comprises the following components (A) and (B):
- (A) 0.01 to 3% by mass of phytic acid or a salt thereof, and
- (B) 0.01 to 3% by mass of pyrophosphoric acid or a salt thereof, does not comprise a polyvalent cation or comprises a polyvalent cation selected from the group consisting of aluminum, calcium, magnesium, iron and zinc in an amount of less than 0.1-fold mol relative to phytic acid, has a pH of 5.5 to 6.5 when diluted with water to 30% by mass, has a mass ratio (B/A) between the component (A) and the component (B) of 0.2 to 3.0, and does not comprise a fluoride or has a fluoride content of less than 500 ppm in terms of fluorine atoms.
Dependencies are inferred from the claim text.