Dentifrices
US4060599A · kind A · utility
19Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1976 |
| Grant date | Nov 29, 1977 |
| Priority date | — |
| Expiry date | Apr 9, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dentifrices containing ground crystals of alpha-alumina having a mean ultimate particle size of about 1 to 2 microns. Typically, the size is that essentially 100% are below 10 microns; about 95% are below 5 microns; about 85% are below 3 microns; about 75% are below 2 microns; about 25% are below 1 micron; and about 5% are below 0.5 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.