| 摘要 |
<p>A tooth coating composition, which comprises (A) a polymer having one or more carboxyl or carbonyloxycarbonyl groups in the molecule, a weight-average molecular weight of 10,000 to 5,000,000, a solubility of 1 g or above in 100 g of anhydrous ethanol at 20 °C, and a solubility of 10 g or below in 100 g of water at 20 °C, and (B) water or a C1 to C5 alcohol. When applied to teeth, the composition is not easily removed by eating or drinking, though it is easily removable if necessary.</p> |
