Peroxidised polyorganosiloxanes (POS), one of the methods for preparing them and their uses as bleaching agent in dental compositions
US6841645B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Dec 1, 1999 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Dec 1, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3945
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns polyorganosiloxanes (POS) grafted with peroxide functions and functions stabilizing the latter. Said stabilized peroxidised POS are designed to form a novel oxidizing system useful as bleaching agents, for example or dental or detergent compositions. The invention aims at and succeeds in providing peroxygenated bleaching agents more stable and more efficient than those known in prior art. The inventive stabilized and peroxidised POS correspond for example to the formula (a). The invention also concerns a method for making said peroxidised POS, the precursors thereof and their uses as bleaching agents in dental compositions (toothpaste or detergent compositions).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.