Process for stabilizing aqueous compositions containing tin salts
US4828822A · kind A · utility
9Cited by
16References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Oct 16, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/69
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Formulations for oral care and dental care, which contain tin (II) salts and water, are stabilized against hydrolysis of the tin salts by the addition of certain cationic surfactant diamine salts. The additive fully preserves, or even potentiates, the inhibiting action of tin salts on plaque formation an dental caries. The formulations advantageously also contain a non-ionic, water-soluble addition product of ethylene oxide which further improves the stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.