Foam manipulation compositions containing fine particles

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 3/00 (2006.01) A61K 8/25 (2006.01) A61K 8/29 (2006.01) C11D 3/12 (2006.01)

Patent

CA 2718540

A foam manipulation stabilizing composition for use in consumer products includes a plurality of surface-modified particles in combination with at least one surfactant. The particles have an average particle size greater than 100 nm up to about 50 µm and a hydrophobicity measured by a contact angle between about 20 to 140. The ratio of particles-to-surfactant may be be-tween about 1:20 to about 20:1. The surface modification may include grafting pH or temperature switching functional groups to the particles or to a composition, such as a polymer, coated on the particle. A method for reducing the level of foam in a rinse so-lution is also described.

Cette invention concerne une composition stabilisant la manipulation de la mousse utilisable dans des produits destinés aux consommateurs qui comprend une pluralité de particules à surface modifiée en combinaison avec un tensioactif. Les particules ont une taille de particules moyenne supérieure à 100 nm et pouvant aller jusqu'à 50 µm et une hydrophobicité, mesurée par un angle de contact, entre 20 et 140. Le rapport des particules au tensioactif peut être compris entre environ 1:20 et environ 20:1. La modification de surface peut comprendre le greffage de groupes fonctionnels modifiant le pH ou la température sur les particules ou une composition, telle qu'un polymère, appliqué sur la particule. Un procédé pour réduire le niveau de mousse dans une solution de rinçage est également décrit.

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