Compositions comprising a dispersant and microcapsules...

A - Human Necessities – 61 – L

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Details

A61L 9/01 (2006.01) C11D 3/00 (2006.01) C11D 17/00 (2006.01) D06M 13/127 (2006.01) D06M 23/12 (2006.01)

Patent

CA 2538932

Compositions for providing controlled-release of an active material comprise a dispersant and microcapsules containing the active material and a stabilizer. The compositions contain the dispersant and/or microcapsules at relatively low levels to avoid negatively impacting the surfaces treated with the compositions. The active material is preferably a perfume and the composition provides a controlled-release scent, along with controlling malodor when the compositions further comprise optional odor control agent. The stabilizer improves the stability of the microcapsule. Methods of providing a controlled- release of an active material on a surface comprise the step of contacting the surface with a composition comprising a dispersant and microcapsules containing an active material and a stabilizer.

L'invention concerne des compositions permettant la libération contrôlée d'un agent actif. Lesdites compositions comprennent un dispersant et des microcapsules contenant la matière active et un stabilisateur. Lesdites compositions contiennent le dispersant et/ou les microcapsules à des niveaux relativement bas afin d'éviter d'avoir un impact négatif sur les surfaces traitées à l'aide des compositions. La matière active est de préférence un parfum et la composition permet d'obtenir une odeur à libération contrôlée tout en régulant les mauvaises odeurs lorsque les compositions comprennent également un agent de régulation d'odeurs éventuel. Le stabilisateur améliore la stabilité de la microcapsule. L'invention concerne des méthodes permettant la libération contrôlée d'une matière active sur une surface, consistant à mettre en contact la surface avec une composition comprenant un dispersant et des microcapsules contenant une matière active et un stabilisateur.

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