Expanded perlite toothpaste
US5597553A · kind A · utility
13Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1994 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Sep 13, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The toothpaste proposed contains as an abrasive, preferably as the sold abrasive, expanded perlite, generally with a particle size in the range of 1 to 150 .mu.m, in particular with a main fraction in the region of 20 .mu.m. This gives enhanced cleaning power, and improved protection of the tooth enamel against wear and scratching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.