The present invention relates to a dentifrice composition comprising:
a) a polyphosphate salt in particulate form, the polyphosphate salt comprising a polyphosphate anion comprising at least 10 phosphate units; and
b) an orally acceptable carrier;
characterised in that the polyphosphate salt has a particle size distribution wherein less than 10% by volume of the salt has a particle size of greater than 160 µm and less than 20% by volume of the salt has a particle size of less than 20 µm. The dentifrice composition has good stability and acceptable mouth feel.
The invention further relates to orally acceptable polyphosphate salts for use in such compositions.
本发明涉及一种牙膏组合物,该组合物包括
a) 颗粒状的聚
磷酸盐,聚
磷酸盐包括至少 10 个
磷酸单位的聚
磷酸盐阴离子;和
b) 口服可接受的载体;
其特征在于,聚
磷酸盐的粒度分布为:按体积计算,小于 10%的盐的粒度大于 160 微米,小于 20%的盐的粒度小于 20 微米。该牙膏组合物具有良好的稳定性和可接受的口感。
本发明还涉及用于此类组合物的口服可接受的聚
磷酸盐。