Hydrogel compositions for tooth whitening
US8840918B2 · kind B2 · utility
18Cited by
216References
43Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 5, 2003 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Mar 31, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition is provided, wherein the composition comprises a water-swellable, water-insoluble polymer, a blend of a hydrophilic polymer and a complementary oligomer capable of hydrogen bonding to the hydrophilic polymer, and a whitening agent, preferably a peroxide. The composition finds utility as a tooth whitening composition and is applied to the teeth in need of whitening, and then removed when the degree of whitening has been achieved. In certain embodiments, the composition is translucent. Methods for preparing and using the compositions are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.