Fast acting disinfection composition
The present invention relates to a disinfecting composition which requires a shorter contact time to be effective than similar compositions. Also, provided is a method of disinfecting a surface with the disinfecting composition where a shorter contact time is needed to disinfect the surface.
1. A liquid disinfectant concentrate dilutable to a liquid disinfectant composition, the liquid disinfectant concentrate comprising:
a) a disinfecting component comprising a mixture of
(i) a dimethyl dioctyl ammonium compound, a dimethyl didecyl ammonium compound, or mixtures thereof, and
(ii) an alkyl dimethyl benzyl ammonium compound, wherein the alkyl group contain between 12 and 18 carbon atoms,
wherein the components are in a weight ratio of component (i) to component (ii) between 4:1 to 1:1,
b) a nonionic surfactant from about 1% to about 20% of weight of the liquid disinfectant concentrate;
c) a solvent;
d) optionally a sequestering agent; and
e) optionally a pH adjuster;
wherein the disinfecting component along with the nonionic surfactant provide the liquid disinfectant composition with a 5 minute or less contact kill time as measured by AOAC Use Dilution Test of 2012, using methodologies 964.02 and 955.12, against P. aeruginosa and S. aureus , respectively, and
wherein the nonionic surfactant comprises an alkoxylated alcohol surfactant having 2 to 8 moles of alkoxylation.
2. The liquid disinfectant concentrate according to claim 1 , wherein component (i) is the dimethyl dioctyl ammonium compound.
3. The liquid disinfectant concentrate according to claim 2 , wherein the dimethyl dioctyl ammonium compound comprises dimethyldioctyl ammonium chloride.
4. The liquid disinfectant concentrate according to claim 1 , wherein the weight ratio of component (i) to component (ii) is between about 2:1 to about 1:1.
5. The liquid disinfectant concentrate according to claim 4 , wherein the weight ratio of component (i) to component (ii) is about 1.5:1.
6. The liquid disinfectant concentrate according to claim 5 , wherein component (i) comprises dimethyldioctyl ammonium chloride.
7. The liquid disinfectant concentrate according to claim 1 , wherein the alkoxylated alcohol surfactant has between 4-6 moles of alkoxylation.
8. The disinfectant concentrate according to claim 1 , wherein the sequestering agent is EDTA and is present in an amount of about 2 to about 8% by weight.
9. The disinfectant composition according to claim 1 , wherein the concentrate includes the sequestering agent and the pH adjuster, wherein the sequestering agent comprises EDTA, and the pH adjuster comprises sodium citrate.
10. The disinfectant concentrate according to claim 1 , wherein the concentrate has a pH from about 6 to about 13.
11. A disinfecting composition comprising the disinfectant concentrate of claim 1 and water, wherein there is between 64 parts of water and 1024 parts of water per part of the disinfectant concentrate.
12. The disinfecting composition according to claim 11 , wherein there are between 128 parts of water and 512 parts of water per part of the disinfectant concentrate.
13. The disinfectant composition according to claim 11 ,
wherein component a) is present in an amount of about 800 ppm to about 1600 ppm.
14. A method of disinfecting a surface, wherein the method comprises applying the disinfectant composition according to claim 13 on a surface, leaving the disinfectant composition in contact with the surface for a period of time, and removing the composition from the surface.