Reduction of abrasiveness in dentifrices
US4174387A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1977 |
| Grant date | Nov 13, 1979 |
| Priority date | — |
| Expiry date | Jan 31, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dentifrice possessing superior cleaning and polishing characteristics comprising a silicious and calcined alumina abrasive system in an amount to provide an enamel abrasion to the dentifrice of above about 450, (as measured by the radioactive method) and about 0.005-1.0% and preferably about 0.1-1.0% by weight of a water soluble fluoride salt, such as sodium fluoride, sodium monofluorophosphate, stannous fluoride and the like, with or without raising the pH of said composition to preferably above about 7 so as to reduce said enamel abrasion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.