Modified abrasive system for dentifrices
US4170634A · kind A · utility
18Cited by
21References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1977 |
| Grant date | Oct 9, 1979 |
| Priority date | — |
| Expiry date | Jan 17, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dentifrice possessing superior cleaning and polishing characteristics containing as the essential ingredients at least one hard abrasive in an amount to provide a radioactive enamel abrasion to the dentifrice of above about 400, such as calcined alumina, zirconium silicate, and the like, and a non-toxic zinc compound in an amount to provide at least about 0.0065% by weight of zinc to the dentifrice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.