Patent ID: 7569533
Filing Date: 2009-08-04
Classification: A61K,A61Q

Abstract:
1. A personal cleansing and detergent composition comprising one or more detersive surfactants and one or more hydrophobic benefit agent, produced after mixing or diluting a cationic oil-in-water emulsion of the hydrophobic benefit agent with the detersive surfactants present either in aqueous solutions or in powder/granular forms, the said emulsion being produced sequentially following steps (a) and (b): (a) the hydrophobic benefit agent, in the form of either a hydrophobic liquid or a solution in a hydrophobic liquid, to be contained in the emulsified oil-phase of the emulsion, is thickened using an organophilic, particulate-based, oil-phase thickener, wherein, if prior to being thickened, the benefit agent have a solubility >2% by weight in surfactant solutions containing at least 3% by weight of detersive surfactants, then the benefit agent is first dissolved or diluted in a hydrophobic liquid or solvent having a solubility <2% by weight in surfactant solutions containing at least 3% by weight of detersive surfactants, and subsequently thickened using an organophilic, particulate-based, oil-phase thickener; (b) the thickened oil-phase containing the hydrophobic benefit agent is emulsified in water using an emulsifier system comprising three polymeric components which are added individually in the following sequence to the water-phase of the emulsion, with the first two polymeric components mixed in the emulsion's water-phase under high-shear agitation, prior to adding the thickened oil-phase, and the subsequent addition of the third polymeric component: