Benefit agent delivery particles comprising dextran
US9351910B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2012 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Sep 20, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/654
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a composition comprising a benefit agent delivery particle comprising dextran as a delivery aid. The benefit agent delivery particle may further comprise a non-polysaccharide polymer, preferably an aminoplast polymer. The benefit agent delivery particle may comprise a perfume. The invention also provides a process for the manufacture of the particles in which perfume oil is encapsulated using emulsion polymerization to form core-shell particles, (in the alternative the perfume may be adsorbed later) and, a further polymer layer is formed on the outer surface of the core shell-particles in the presence of the delivery aid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.