C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/00 (2006.01)
Patent
CA 2619012
An antimicrobial composition that involves a synergistic mixture in terms of active agents, of a primary antimicrobial agent, such as polyhexamethylene biguanide (PHMB), a secondary antimicrobial agent, and optionally an organic acid against various kinds of microbes is described. Various additional processing aids, such as alcohols and surfactants, may also be incorporated within the mixture. The composition allows one to use a significantly less concentration of individual constituent antimicrobial agents to achieve the same or a better degree of antimicrobial efficacy. The antimicrobial composition can be applied to the surface of almost any kind of substrate material, and can achieve a killing-efficacy of about 3 Log10 reduction in microbes within 30 minutes under ambient conditions.
La présente invention concerne une composition antimicrobienne impliquant un mélange synergétique en termes d~agents actifs, d~un agent antimicrobien primaire, tel que du polyhexaméthylène biguanide (PHMB), d~un agent antimicrobien secondaire et, éventuellement, d~un acide organique agissant contre divers types de microbes. Divers adjuvants de traitement supplémentaires, tels que des alcools et des agents tensioactifs, peuvent également être incorporés dans le mélange. La composition permet d~utiliser une concentration nettement moins importante d~agents antimicrobiens à constituant individuel en vue d~obtenir le même degré d~efficacité antimicrobienne, voire un degré supérieur. La composition antimicrobienne peut être appliquée à la surface de quasiment tous les types de matériau de substrat et peut atteindre en 30 minutes une efficacité de dénaturation d~environ 3 Log10 en termes de réduction des microbes dans des conditions ambiantes.
Dobson Angela G.
Hoffman Douglas R.
Koenig David William
Schorr Phillip A.
Spencer Anthony S.
Borden Ladner Gervais Llp
Kimberly-Clark Worldwide Inc.
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