Calcium pyrophosphate abrasive system for dentifrice
US3989814A · kind A · utility
18Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1975 |
| Grant date | Nov 2, 1976 |
| Priority date | — |
| Expiry date | Mar 17, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/27
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dentifrice possessing enhanced polishing characteristics containing abrasive system including at least calcium pyrophosphate and a non-toxic zinc compound in an amount to provide at least about 0.0065% of zinc to the dentifrice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.