Patent ID: 6892739

Claim:
A method for disinfecting a surface comprising contacting the surface with a concentrated composition comprising: a) 5 to 100% by weight of one or more nonionic surfactants corresponding to general formula (I): R 1 —(OC 2 H 4 ) n —(OC 3 H 6 ) m —OH (I) in which R 1 is a linear or branched alkyl or alkenyl group containing 10, 12 or 14 carbon atoms and the sum of the average degree of ethoxylation n and the average degree of propoxylation m is between 0.5 and 5, and b) 5 to 100% by weight of one or more nonionic surfactants corresponding to general formula (II): R 2 —(OC 2 H 4 ) r —(OC 3 H 6 ) s —OH (II) in which R 2 is a linear or branched alkyl or alkenyl group containing 9, 11 or 13 carbon atoms and the sum of the average degree of ethoxylation r and the average degree of propoxylation s is between 0.5 and 5, wherein the ratio by weight of nonionic surfactant corresponding to general formula (I) to nonionic surfactant corresponding to general formula (II) is between 4:1 and 1:4, the sum total of all constituents not exceeding 100% by weight, to provide disinfection.