| 摘要 |
<p>1522697 Tooth-cleaning compositions HENKEL KG AUF AKTIEN 28 Oct 1975 44224/75 Heading A5B [Also in Division Cl] Tooth-cleaning compositions contain a fluorine compound and, as polishing agent, CaHPO 4 anhydride which has been stabilised against reaction with fluoride ions by treatment with 3 - amino - 1 - hydroxypropane - 1, 1 - diphosphonic acid or water-soluble salt thereof (see Division Cl). The phosphate is normally pre-treated but may also be treated in situ in a toothpaste. The phosphonic acid may be used with other stabilisers. The composition may be a paste or a powder containing 25-60wt.% of the treated phosphate, the other ingredients being conventional. Exemplified compositions contain (a) Examples 4 and 5: glycerine (30 or 18 parts by wt.), water (18 or 29.3), Na carboxymethyl cellulose (1), treated phosphate (36 or 40), Na metaphosphate (10) or sorbitol (7), Na lauryl sulphate (1), pyrogenic silicic acid (1.5), Na monofluorophosphate (0.5) or NaF (0.2), essential oils (1.5), saccharin sweetener (0.5); (b) Example 6: treated phosphate (50), chalk (30), silicic acid (10), milk sugar (4), MgCO 3 (4), TiO 2 (1), tannin (1).</p> |
