Improvements in general purpose cleaning compositions

Details Improvements in general purpose cleaning compositions Improvements in general purpose cleaning compositions

C - Chemistry, Metallurgy

11

D

C11D 10/04 (2006.01) C11D 3/20 (2006.01) C11D 3/43 (2006.01)

Patent

CA 2146349

Ideal household cleaning compositions should form a relatively stable foam on application to a surface and rapidly defoam when rinsed from the surface. The present invention subsists in an aqueous cleaning composition comprising: (a) a surfactant system comprising an anionic surfactant other than an alkali metal salt of a fatty acid, (b) C10-C18 monocarboxylic fatty acid, (c) a semi-polar solvent, (d) a polycarboxylic acid, and (e) a base, said composition having a pH of less than 6. It is believed that the C10-18 fatty acids have a foam boosting effect which improves 'cling' of the foam to sloping or vertical surfaces. When the compositions are diluted during rinsing the fatty acid and the solvent form an antifoam system which defoams the composition.

Une composition nettoyante à usage domestique devrait idéalement former une mousse relativement stable en étant appliquée sur une surface et la mousse devrait être rapidement supprimée lorsque la composition est rincée de la surface. La présente invention se rapporte à une composition nettoyante aqueuse comprenant: (a) un système tensioactif composé d'un agent tensioactif anionique autre qu'un sel métallique alcalin d'un acide gras, (b) un acide gras monocarboxylique C10-C18, (c) un solvant semi-polaire, (d) un acide polycarboxylique, et (e) une base, ladite composition présentant un pH inférieur à 6. On suppose que les acides gras C10-18 présentent un effet de renforcement de mousse aux surfaces en pente ou verticales. Lorsque les compositions sont diluées au cours du rinçage, l'acide gras et le solvant forment un système antimousse qui supprime la mousse de la composition.

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