Patent ID: 7208453

Claim:
A method for the control and inactivation of pathogenic germs on surfaces and instruments of medical and technical establishments comprising the step of contacting the surface or instrument with a disinfectant composition comprising: an effective microbicidal and antiviral combination of A) at least one acid selected from the group consisting of aromatic monohydroxycarboxylic acids, dihydroxybenzoic acids, trihydroxybenzoic acids and mixtures thereof, B) phenols; and C) one or more surfactants selected from the group consisting of i) an anionic surfactant selected from the group consisting of alkyl sulfonates, alkyl aryl sulfonic acid, alkyl aryl sulfonates, alkyl aryl ether sulfates with 1 to 3 EO groups, alkyl ether sulfates with 1 to 3 EO groups, their sodium, potassium, and ammonium salts with primary or branched chains having a length of C 8 to C 18 and mixtures thereof; and ii) a nonionic surfactant selected from the group consisting of alkyl polyethyleneglycol ethers with 3 to 11 EO groups and mixtures thereof, wherein the weight ratio of component (C) to components (B+A) is between 1:9 and 9:1 and their sum is between 10 and 60%, referring to the total weight of the concentrated disinfectant formula.