Improvements relating to antimicrobial cleaning compositions

Details Improvements relating to antimicrobial cleaning compositions Improvements relating to antimicrobial cleaning compositions

C - Chemistry, Metallurgy

11

D

C11D 1/72 (2006.01) C11D 3/20 (2006.01) C11D 3/48 (2006.01)

Patent

CA 2235680

The invention provides a hygienic cleaning composition of pH < 6 or pH > 8 which comprises: a) 0.01-30 wt.% on product of an ethoxylated nonionic surfactant, other than an alkyl phenol derivative, said surfactant having an HLB of 10-14 (this is typically an ethoxylated alcohol having a chain length of C8-C14 and 4-10 ethoxy groups per molecule), and, b) 1-30 wt.% on product of a C1-C5 linear or branched alcohol (this is typically selected from the group comprising propan-2-ol, propanol, ethanol and mixtures thereof). It is believed that the use of 1-30 wt.% of a C1-C5 linear or branched alcohol as a biocidal activity improving additive for the selected nonionic surfactants greatly improves the biocidal properties of the compositions under the pH conditions specified. The specification also provides a method of cleaning and disinfecting a hard surface which comprises the step of treating said surface with a cleaning composition as claimed.

Cette invention concerne une composition nettoyante hygiénique ayant un pH inférieur à 6 ou supérieur à 8, comprenant: (a) 0,01 - 30 % en poids d'un tensioactif non ionique éthoxylé autre qu'un tensioactif dérivé d'un alkyl-phénol, ce tensioactif ayant une valeur de HLB de 10-14, ce qui correspond typiquement à un alcool éthoxylé en C8-C14 ayant 4-10 groupes éthoxy par molécule et (b) 1-30 % en poids d'un alcool en C1-C5 droit ou ramifié (choisi par exemple dans le groupe comprenant le propan-2-ol, le propanol, l'éthanol et leurs mélanges). On pense que l'utilisation de 1-30 % en poids d'un alcool en C1-C5 droit ou ramifié comme additif pour les tensioactifs non ioniques choisis améliore considérablement les propriétés biocides de la composition dans les conditions de pH spécifiées. Cette spécification concerne également un procédé de nettoyage et de désinfection d'une surface dure qui consiste à traiter cette surface avec ladite composition nettoyante.

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