Antimicrobial cleaning compositions
AssigneeLever Brothers Company, Division of Conopco, Inc.
InventorsAlexander Allan, Ian M. George, Kenneth L. Rabone
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Abstract
A synergy is exhibited between surfactants selected from the group comprising amphoteric surfactants and alkoxylated alcohol surfactants and a certain class of aromatic organic acids. Alkoxylated alcohol surfactants are otherwise poorly biocidal at reasonable formulation pH's. Accordingly the invention relates to a disinfecting composition including: an ortho-hydroxy benzoic acid derivative (preferably salicylic acid), and, an amphoteric surfactant and/or an alkoxylated alcohol nonionic surfactant (preferably an ethoxylated alcohol), said composition having a pH of 1-5.5.
Claims6
An antimicrobial hard surface cleaning composition comprising:
- a) 0.01 to 8 wt. % of an ortho-hydroxy benzoic acid derivative selected from the group consisting of:
- 2-hydroxy benzoic acid,
- 2-hydroxy benzoic acid substituted with a C.sub.1 -C.sub.12 alkyl group at the 3, 4 or 5 positions,
- 2-hydroxy benzoic acid substituted with a hydroxyl group at the 3, 4 or 5 positions,
- and mixtures thereof;
- and
- b) 0.01 to 8 wt. % of an amphoteric surfactant selected from the group consisting of:
- betaines, amine oxides, alkyl-amino glycinates;
- and
- c) 0.1 to 30 wt. % of a C.sub.8 -C.sub.22 ethoxylated alcohol nonionic surfactant with 4 to 10 ethoxy groups per molecule,
- said composition having a pH of 3.2-4.0.
Dependencies are inferred from the claim text.