Compositions comprising a dispersant and microcapsules...

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 17/00 (2006.01) A01N 25/28 (2006.01) A61L 9/01 (2006.01) A61L 9/14 (2006.01) C11D 3/00 (2006.01) C11D 3/22 (2006.01) C11D 3/48 (2006.01) C11D 3/50 (2006.01) D06M 11/00 (2006.01) D06M 11/74 (2006.01) D06M 11/79 (2006.01) D06M 13/00 (2006.01) D06M 13/127 (2006.01) D06M 15/03 (2006.01) D06M 23/06 (2006.01) D06M 23/12 (2006.01)

Patent

CA 2479193

Compositions for providing controlled-release of an active material comprise a dispersant and microcapsules containing the active material. 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. 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.

La présente invention concerne des compositions qui assurent la libération contrôlée d'une matière active et qui sont constituées d'un dispersant et de microcapsules contenant la matière active. Les compositions contiennent le dispersant et/ou les microcapsules à des taux relativement faibles pour éviter d'avoir un impact négatif sur les surfaces traitées avec les compositions. La matière active est de préférence un parfum et la composition confère une odeur à libération contrôlée tout en régulant les mauvaises odeurs lorsque les compositions comprennent également un agent optionnel de régulation des odeurs. Les procédés qui assurent la libération contrôlée d'une matière active sur une surface comprennent une étape de mise en contact de la surface avec une composition comprenant un dispersant et les microcapsules contenant la matière active.

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