Low VOC cleaning compositions for hard surfaces
View Patent ↗The present invention relates generally to compositions and methods for cleaning hard surfaces. More particularly, the present invention relates to cleaning compositions which can be used in automotive applications for removing organic soils that accumulate on automotive surfaces without causing surface paint damage. Such cleaning compositions of the present invention are environmentally safe and contain no or low amounts of volatile organic compounds.
1. A composition for cleaning hard surfaces comprising:
(a) about 0.001% to about 0.5% by weight of a surfactant;
(b) about 0.001% to about 2% by weight of an ammonia compound;
(c) about 0.001% to about 0.80% by weight of an alcohol; and
(d) balance being water,
wherein the total alcohol content is no more than about 0.80% by weight of the composition.
2. The composition according to claim 1 , wherein said composition comprises about 0.001 to about 0.25% by weight of surfactant.
3. The composition according to claim 1 , wherein said composition comprises about 0.005% to about 0.1% by weight of surfactant.
4. The composition according to claim 1 , wherein said composition comprises about 0.01% to about 0.075% by weight of surfactant.
5. The composition according to claim 1 , wherein said composition comprises about 0.01% to about 0.05% by weight of surfactant.
6. The composition according to claim 1 , wherein said surfactant is selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, zwitterionic surfactants and mixtures thereof.
7. The composition according to claim 6 , wherein said surfactant is selected from the group consisting of CS Surfactant, octylphenol ethoxylates, alkyl polyglycosides, sodium alkyl sulfates, and mixtures thereof; wherein CS Surfactant comprises a mixture of quaternary amines, amine oxides, and amphoteric surfactants.
8. The composition according to claim 1 , wherein said composition comprises about 0.005% to about 1.0% by weight of the ammonia compound.
9. The composition according to claim 1 , wherein said composition comprises about 0.01% to about 0.75% by weight of the ammonia compound.
10. The composition according to claim 1 , wherein said composition comprises about 0.05% to about 0.50% by weight of the ammonia compound.
11. The composition according to claim 1 , wherein said composition comprises about 0.07% to about 0.30% by weight of the ammonia compound.
12. The composition according to claim 1 , wherein said ammonia compound is selected from the group consisting of ammonium carbamate, ammonium carbonate, ammonium bicarbonate, ammonium hydroxide, ammonium acetate, ammonium borate, ammonium phosphate, an alkanolamine having 1 to 6 carbon atoms and ammonia.
13. The composition according to claim 1 , wherein said ammonia compound is selected from the group consisting of ammonia, ammonium hydroxide, and alkanolamine having 1 to 6 carbon atoms.
14. The composition according to claim 1 , wherein said composition comprises about 0.005% to about 0.08% by weight alcohol.
15. The composition according to claim 1 , wherein said composition comprises about 0.01% to about 0.70% by weight alcohol.
16. The composition according to claim 1 , wherein said composition comprises about 0.05% to about 0.60% by weight alcohol.
17. The composition according to claim 1 , wherein said composition comprises about 0.1% to about 0.50% by weight alcohol.
18. The composition according to claim 1 , wherein said alcohol is selected from the group consisting of water miscible alcohols having 1 to 6 carbon atoms, water miscible glycols and glycol ethers having 2 to 15 carbon atoms and mixtures thereof.
19. The composition according to claim 1 , wherein said alcohol is selected from the group consisting of methanol, ethanol, isopropanol, propanol, butanol, furfuryl alcohol, tetrahydrofurfuryl alcohol, 1-amino-2-propanol, ethylene glycol, propylene glycol, and 2butoxyethanol.
20. The composition according to claim 1 , wherein said alcohol is selected from the group consisting of ethanol, isopropanol, tetrahydrofurfuryl alcohol, 1-amino-2-propanol, and 2-butoxyethanol.
21. The composition according to claim 1 , wherein said composition further comprises one or more enzymes selected from the group consisting of protease, cellulase, chitinase, lipase, and amylase.
22. A composition for cleansing hard surfaces comprising:
(a) about 0.001% to about 0.25% by weight of a surfactant;
(b) about 0.005% to about 1.0% by weight of an ammonia compound;
(c) about 0.005% to about 0.80% by weight of an alcohol;
(d) balance being water;
wherein the total alcohol content is no more than about 0.80% by weight of the composition.
23. A composition for cleansing hard races comprising:
(a) about 0.005% to about 0.1% by weight of a surfactant;
(b) about 0.01% to about 0.75% by weight of an ammonia compound;
(c) about 0.01% to about 0.70% by weight of an alcohol;
(d) balance being water;
wherein the total alcohol content is no more that about 0.08% by weight of the composition.
24. A composition for cleansing hard surfaces comprising:
(a) about 0.01% to about 0.075% by weight of a surfactant;
(b) about 0.05% to about 0.50% by weight of an ammonia compound;
(c) about 0.05% to about 0.60% by weight of an alcohol;
(d) balance being water;
wherein the total alcohol content is no more that about 40.80% by weight of the composition.
25. A composition for cleansing hard surfaces comprising:
(a) about 0.01% to about 0.05% by weight of a surfactant;
(b) about 0.07% to about 0.30% by weight of an ammonia compound;
(c) about 0.1% to about 0.50% by weight of an alcohol;
(d) balance being water;
wherein the total alcohol content no more that about 0.80% by weight of the composition.
26. The composition according to any one of claims 22 - 25 , wherein said surfactant is selected from the group consisting of CS Surfactant, octylphenol ethoxylates, alkyl polyglycosides, sodium alkyl sulfates, and mixtures thereof; wherein CS Surfactant comprises a mixture of quaternary amines, amino oxides, and amphoteric surfactants.
27. The composition according to any one of claims 22 - 25 , wherein said ammonia compound is selected from the group consisting of ammonia and 1-amino-2-propanol.
28. The composition according to any one of claims 22 - 25 , wherein said alcohol is selected from ethanol, isopropanol, tetrahydrofurfuryl alcohol, 1-amino-2-propanol, and 2-butoxyethanol and mixtures thereof.
29. A method for cleaning a hard surface comprising the steps of:
(a) applying to the surface a composition according to any one of claims 1 , 22 - 25 ; and
(b) wiping the hard surface.
30. The method according to claim 29 , wherein said hard surface is glass.
31. The method according to claim 29 , wherein said method does not cause paint damage to said hard surface.
32. The method according to claim 29 , wherein said hard surface is an automotive surface.
33. The method according to claim 32 , wherein said automotive surface is selected from the group consisting of windshields, fenders, tires, doors, roof, hood, trunk, bumpers, trim, windows, hub caps, transportation body and heat exchangers.
34. The method according to claim 33 , wherein said automotive surface is a windshield.
35. The method according to claim 34 , wherein said method does not cause damage to painted surfaces surrounding said windshield.
36. The method according to claim 29 , wherein said method further comprises the step of removing organic soils from said hard surface.
37. A method for evaluating the effectiveness of cleaning composition, comprising the steps of:
(a) contacting a sample with said cleaning composition, wherein said sample comprises a soil;
(b) calculating rate of penetration of said composition into said soil;
(c) calculating removal effectiveness.