Fragrance delivery system for surface cleaners and conditioners
US7381417B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2006 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | May 23, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/594
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
We claim a fragrance delivery system consisting of a mixture of various polymers oligomers and stabilizers capable of forming a surfactant complex gel dispersion when combined with a cleansing surfactant base and yielding high levels of fragrance deposition onto the skin, hair or other surface such as a textile, from a cleansing or softening consumer product comprising a micelle forming surfactant. The internal phase or dispersible phase of this surfactant complex gel dispersion (GLPPD) is made of a mixture of various immiscible polymers, oligomers and stabilizers forming a complex gel with the surfactant platform and whose ratio and composition are selected to dissolve preferentially a wide range of fragrance raw materials. The selection criteria are, first, that the fragrance should present a higher fragrance partitioning ratio into the surfactant complex gel phase than into the free micelles of the surfactant, second, that the surfactant complex gel should not be further solubilized by the free micelles, and third, that the polymer mixture selected should complex with the surfactant system. The external or dispersing phase of the GLPPD is made of a single cationic polymer or a m…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.