Stabilized anhydrous tooth whitening gel
US5718886A · kind A · utility
87Cited by
7References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1996 |
| Grant date | Feb 17, 1998 |
| Priority date | — |
| Expiry date | Dec 23, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/5422
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Stabilized anhydrous dental whitening gel compositions are provided which resist viscosity degradation during oral use. An illustrative anhydrous dental bleaching gel composition embodying this feature comprises propylene glycol, polyethylene glycol, glycerin in an amount not exceeding about 10 wt. %, neutralized carboxypolymethylene, hydroxypropylcellulose, xanthan gum and carbamide peroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.