Encapsulated perfume compositions
AssigneeGivaudan SA
InventorsIan Michael Harrison, Emmanuel Aussant, Frederic Blondel, Guillaume Jeanson
Life of this patent
Estimating the term…
Abstract
An encapsulated perfume composition comprising at least one perfume-containing aminoplast core-shell microcapsule dispersed in an aqueous suspending medium, the microcapsule being characterized in that it bears a positive charge.
Claims19
An encapsulated perfume composition comprising at least one aminoplast core-shell microcapsule dispersed in a suspending medium, the at least one aminoplast microcapsule comprising a perfume-containing core, encapsulated in a shell comprising a cross-linked network of an aminoplast resin, and wherein the at least one aminoplast microcapsule is positively charged, wherein dispersed within the cross-linked network of the aminoplast resin is a positively charge polymeric colloidal stabilizer, the positively charged polymeric colloidal stabilizer being an ampholytic polymer bearing polyatomic cations with cationic units derived from a monomer bearing quaternary ammonium ion functionality, said monomer being selected from:
- quaternized dimethylaminoethyl acrylate (ADAME),
- quaternized dimethylaminoethyl methacrylate (MADAME),
- dimethyldiallyl ammonium chloride (DADMAC),
- acrylamidopropyltrimethylammonium chloride (APTAC), and
- methacrylamidopropyltrimethylammonium chloride (MAPTAC).
Dependencies are inferred from the claim text.