Microemulsion dilutable cleaner

Details Microemulsion dilutable cleaner Microemulsion dilutable cleaner

C - Chemistry, Metallurgy

11

D

C11D 1/86 (2006.01) C11D 1/72 (2006.01) C11D 1/835 (2006.01) C11D 3/43 (2006.01) C11D 3/44 (2006.01) C11D 17/00 (2006.01) C11D 1/62 (2006.01) C11D 3/20 (2006.01)

Patent

CA 2331537

A concentrated, dilutable cleaning composition is provided which comprises a microemulsion comprising an oil phase of which the "oil" is a nonionic surfactant, a predominant aqueous continuous phase, a polar organic solvent coupling agent, and a combination of surfactants different from the surfactant oil phase as the dispersing agent facilitating formation of said microemulsion, the cleaning composition dilutable with water for use as an all purpose cleaner and characterized by exhibiting the feature of blooming upon such dilution even in the absence of a lipophilic oil (or solvent). The blooming phenomenon is associated with the formation of a liquid crystal dispersion, which liquid crystal state is found to greatly enhance the cleaning effectiveness of the composition. In one aspect of the invention, one of the dispersing agent surfactants is a cationic surfactant which may be a quaternary ammonium compound capable of imparting an antimicrobial effect to the composition.

L'invention concerne une composition concentrée de nettoyage pouvant être diluée, qui comporte une micro-émulsion renfermant une phase d'huile, l'huile étant un tensioactif non ionique, une phase continue aqueuse principale, un agent de pontage de solvant organique polaire, ainsi qu'une combinaison de tensioactifs différents du tensioactif de la phase d'huile comme agent dispersant activant la formation de ladite micro-émulsion. La composition de nettoyage peut être diluée dans de l'eau pour servir de nettoyant universel, et est caractérisée par le fait qu'elle devient laiteuse après dilution, même en l'absence d'une huile lipophile (ou de solvant). Ce phénomène d'aspect laiteux est associé à la formation d'une dispersion de cristaux liquides, cet état de cristaux liquides améliorant fortement l'efficacité de nettoyage de la composition. Dans un aspect de l'invention, l'un des tensioactifs d'agent dispersant est un tensioactif cationique pouvant être un composé d'ammonium quaternaire capable de conférer un effet antimicrobien à la composition.

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