Cyclic siloxane compositions for the release of active ingredients
US7576170B2 · kind B2 · utility
3Cited by
49References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Sep 7, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/507
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Cyclic siloxanes that contain releasable active ingredients are described. The active ingredient can be an alcohol or enolizable carbonyl-containing compound such as a ketone, aldehyde, or ester. The product siloxanes are useful in a variety of personal and household care products where slow or controlled release of active ingredient is desired. A preferred embodiment utilizes substituents that when released as active ingredients are fragrant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.