The characteristics of a microcapsule with an entirely new wall material, ‘silicone–resin–polypeptide’, and its application
Many studies on the preparation and application of microcapsules have been reported in the literature. We developed an innovative encapsulation technology by using silicone–resin–polypeptide as the encapsulating material. The resultant microcapsule was easily prepared from silicone–resin–polypeptide. For this microcapsule not only was the extent of encapsulation as high as 90%, but the particle size could be controlled to obtain very small sizes (average particle diameter was 2.2 μm) as well. Moreover, these microcapsules were resistant to relatively high shear forces and were stable over a long-time period. Application in cosmetics by using microcapsule involving UV absorbers was examined. It was possible to apply organic UV absorbers in water-rich formulations without any surfactant. This formulation demonstrated a good moisturizing and soft skin feel. The result showed this microcapsule might be widely applied in cosmetics.
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Document Type: Abstract
Publication date: August 1, 2004