Oral care compositions for tooth whitening
US9724280B2 · kind B2 · utility
5Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2012 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Aug 2, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/48
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described herein are oral care compositions (for tooth whitening) comprising a thickening system comprising a first thickening agent and a second thickening agent, wherein the first thickening agent comprises greater than 15 wt % of the mixture of the first and second thickening agents in the thickening system. The compositions comprise crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide with a thickening system comprising silica and crosslinked polyvinylpyrrolidone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.