C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/48 (2006.01) C11D 3/20 (2006.01)
Patent
CA 2189018
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.
Il existe une synergie entre des tensioactifs choisis parmi le groupe comprenant des tensioactifs amphotères ainsi que des tensioactifs d'alcool alcoxylé, et une certaine classe d'acides organiques aromatiques. Généralement, les tensioactifs d'alcool alcoxylé sont faiblement biocides à des pH raisonnablement formulés. En conséquence, l'invention concerne une composition désinfectante comprenant: un dérivé de l'acide ortho-hydroxy benzoïque (de préférence de l'acide salicylique), ainsi qu'un tensioactif amphotère et/ou un tensioactif non ionique d'alcool alcoxylé (de préférence un alcool éthoxylé), cette composition possédant un pH compris entre 1 et 5,5.
Allan Alexander
George Ian Michael Riorden
Rabone Kenneth Leslie
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Plc Unilever
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