Abrasive silicas for toothpaste compositions
US5932191A · kind A · utility
13Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1996 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Jul 31, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/82
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to silicas, in particular precipitated silicas, which can be used in particular as abrasive agents in toothpaste compositions. The silicas according to the invention have, first of all, low specific surfaces. Their BET specific surface is between 20 and 75 m.sup.2 /g, preferably between 35 and 64 m.sup.2 /g. The invention also relates to a process for their preparation and to the toothpaste compositions containing them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.