Amorphous silicas and oral compositions
US6399111B1 · kind B1 · utility
4Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Sep 14, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/82
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An amorphous silica having an RDA value of between 40 and 70, an oil absorption capacity of between 90 and 145 cc/100 g and a moisture loss of less than 7% w/w, can be incorporated at a 10% to 25% loading into a transparent toothpaste having a refractive index of below 1.445, this toothpaste having an RDA value of less than 60.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.