Disinfectant compositions, containing (a) at least one amine and/or quaternary ammonium salt of the general formula (Ia) or (Ib): wherein R 1 represents C 6-18 alkyl, R 2 represents benzyl or C 6-18 alkyl, R 3 represents C 1-18 alkyl or —[CH 2 ) 2 —O] n R 6 , where n=1-20, R 4 and R 5 independently of one another represent C 1-4 alkyl, R 6 represents hydrogen or optionally substituted phenyl and A − is a monovalent anion or the equivalent of a multivalent anion of an inorganic or organic acid; and (b) at least one alkanolamine of the general formula (II): wherein m and, if present, o and p independently of one another have the values 2 or 3 and x and y independently of one another have the values 0 or 1, or a corresponding salt. The mass ratio of the components in the formulas (I):(II) is between 20:1 and 1:20. The compositions are characterized by an excellent bactericidal and in particular fungicidal action even in small application concentrations and are suitable for use as both disinfectants and preservative agents.
1. A disinfectant composition comprising:
i) an amine and, optionally a quaternary ammonium salt, the amine (Ia) has formula:
where R 1 is C 6-18 -alkyl; and the quaternary ammonium salt has the formula:
where R 2 is benzyl or C 6-18 -alkyl;
R 3 is C 1-18 -alkyl or —[(CH 2 ) 2 —O] n R 6 where n=1-20;
R 4 and R 5 independently of one another are C 1-4 -alkyl;
R 6 is hydrogen or unsubstituted or substituted phenyl; and
A − is a monovalent anion or one equivalent of a polyvalent anion of an inorganic or organic acid, and
(ii) at least one alkanolamine of the formula;
where m and, if present, o and p independently of one another have the value 2 or 3; and
x and y independently of one another have the value 0 or 1, or a corresponding salt;
in the mass ratio (I):(II): of 20:1 to 1:20.
2. The disinfectant composition according to claim 1 , wherein the amine or quaternary ammonium salt is selected from the group consisting of N,N-bis(3-aminopropyl)dodecylamine, N,N-bis(3-aminopropyl)octylamine, didecyldimethylammonium salts, dioctyldimethylammonium salts, octyldecyldimethylammonium salts, coconutalkyldimethylbenzylammonium salts and benzyldimethyloxoethylammonium salts and mixtures of these compounds.
3. The disinfectant composition according to claim 1 , wherein the alkanolamine (II) is selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine and 3-amino-1-propanol.
4. The disinfectant composition according to claim 1 , wherein the mass ratio (I):(II) is between 1:5 and 5:1.
5. The disinfectant composition according to claim 1 , wherein the disinfectant composition includes water as a solvent.
6. The disinfectant composition according to claim 1 , wherein the disinfectant composition additionally comprises one or more aids selected from the group consisting of organic solvents, surfactants, complexing agents, fragrances and colorants.
7. The disinfectant composition according to claim 2 , wherein the alkanolamine (II) is selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine and 3-amino-1-propanol.
8. The disinfectant composition according to claim 3 , wherein the mass ratio (I):(II) is between 1:5 and 5:1.
9. The disinfectant composition according to claim 4 , wherein the disinfectant composition includes water as solvent.
10. The disinfectant composition according to claim 5 , wherein the disinfectant composition additionally comprises one or more aids selected from the group consisting of organic solvents, surfactants, complexing agents, fragrances and colorants.