Dentifrices
US4346072A · kind A · utility
4Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Sep 12, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/368
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Aqueous toothpaste containing abrasive particles of Bayer process alkaline alpha-alumina trihydrate which has been milled in the presence of a surface-modifying agent. Carboxylic acids containing a polar and a non-polar group and hydrophilic pyrogenic silica are surface-modifying agents. The toothpaste may be packaged in unlined aluminum tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.