Development of extensional viscosity for reduced atomization for diluted concentrate sprayer applications
A non-Newtonian concentrate composition includes a sensitizer or irritant, a surfactant, an anti-mist component and optionally a stability component. Example sensitizers and irritants include, but are not limited to, acids, quaternary compounds, and amines, and example anti-mist components include, but are not limited to, polyethylene oxide and polyacrylamide.
1. A non-Newtonian aqueous concentrate composition comprising:
from about 7% to about 45% total by weight of an acid, wherein the acid comprises between about 1% to about 10% by weight of a fatty acid;
at least one surfactant; and
at least one anti-mist component selected from the group consisting of polyethylene oxide with a molecular weight between about 3,000,000 and about 7,000,000, polyacrylamide and polyacrylate with a molecular weight between about 500,000 and about 3 million, wherein the composition is a non-Newtonian having a viscosity of less than about 40 centipoise.
2. The non-Newtonian aqueous concentrate composition of claim 1 , further comprising an antioxidant, a chelant, and/or a solvent.
3. The non-Newtonian aqueous concentrate composition of claim 2 , wherein the solvent is selected from the group consisting of propylene glycol and glycerine.
4. The non-Newtonian aqueous concentrate composition of claim 1 , further comprising at least two stability components selected from the group consisting of antioxidants, chelants, and solvents.
5. The non-Newtonian aqueous concentrate composition of claim 1 , wherein the acid further comprises a phosphoric acid, citric acid, lactic acid, and/or methane sulfonic acid.
6. The non-Newtonian aqueous concentrate composition of claim 1 , wherein the concentrate composition has a pH of 4.5 or lower.
7. The non-Newtonian aqueous concentrate composition of claim 1 , further comprising water, and wherein water constitutes between about 45% and about 75% by weight of the aqueous concentrate composition, the total acid constitutes between about 7% and about 35% by weight of the aqueous concentrate composition, the at least one surfactant constitutes between about 1.5% and about 12% by weight of the aqueous concentrate composition, and the anti-mist component is selected from the group consisting of polyethylene oxide, polyacrylamide and combinations thereof and constitutes between about 0.01% and about 0.3% by weight of the aqueous concentrate composition.
8. The non-Newtonian aqueous concentrate composition of claim 1 and further comprising water, and wherein water constitutes between about 45% and about 75% by weight of the aqueous concentrate composition, the total acid constitutes between about 7% and about 35% by weight of the aqueous concentrate composition, the at least one surfactant constitutes between about 1.5% and about 12% by weight of the aqueous concentrate composition, and the anti-mist component is polyacrylate and constitutes between about 0.5% and about 20% by weight of the aqueous concentrate composition.
9. The non-Newtonian aqueous concentrate composition of claim 7 , further comprising between about 0.01 and about 10.0% by weight propylene glycol.
10. The non-Newtonian aqueous concentrate composition of claim 7 , further comprising between about 0.05% and 10% by weight of of an antioxidant, a chelant, and/or a solvent.
11. The non-Newtonian aqueous concentrate composition of claim 10 , wherein the chelant is dicarboxymethyl glutamic acid tetrasodium salt (GLDA).
12. The non-Newtonian aqueous concentrate composition of claim 1 , further comprising water, wherein water constitutes between about 25% and about 50% by weight of the aqueous concentrate composition, the at least one surfactant constitutes between about 1.3% and about 12% by weight of the aqueous concentrate composition, and the anti-mist component is selected from the group consisting of polyethylene oxide, polyacrylamide and combinations thereof and constitutes between about 0.01% and about 0.3% by weight of the aqueous concentrate composition.
13. The non-Newtonian aqueous concentrate composition of claim 1 further comprising water, wherein water constitutes between about 25% and about 50% by weight of the aqueous concentrate composition, the at least one surfactant constitutes between about 1.3% and about 12% by weight of the aqueous concentrate composition, and the anti-mist component is polyacrylate and constitutes between about 0.5% and about 20% by weight of the aqueous concentrate composition.
14. The non-Newtonian aqueous concentrate composition of claim 1 , wherein the fatty acid is hexanoic acid, butyric acid, octanoic acid, heptanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, and/or combinations thereof.
15. The non-Newtonian aqueous concentrate composition of claim 1 , wherein the composition is a sprayable composition by utilizing a spray bottle device comprising a spray head and a container attached to the spray head.
16. The non-Newtonian aqueous concentrate composition of claim 1 , wherein the composition is a sprayable composition by utilizing a low velocity sprayer.
17. A method of forming a use solution, the method comprising:
mixing water with a concentrate aqueous composition to create the use solution, the concentrate aqueous composition comprising:
at least one surfactant;
a fatty acid; and
at least one anti-mist component selected from the group consisting of polyethylene oxide with a molecular weight between about 3,000,000 and about 7,000,000 and polyacrylamide, wherein the concentrate aqueous composition is mixed with sufficient water to form a use solution having between about 0.002% and about 0.006% by weight anti-mist component.
18. The method of claim 17 , wherein the concentrate aqueous composition further comprises an antioxidant, a chelant, and/or a solvent.
19. The method of claim 17 , wherein the concentrate aqueous composition further includes between about 0.01% and about 10.0% by weight propylene glycol.
20. The method of claim 17 , wherein the use solution has a pH of about 4.5 or less.
21. The method of claim 17 , wherein the fatty acid is hexanoic acid, butyric acid, octanoic acid, heptanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, and/or combinations thereof.
22. The method of claim 17 , wherein the surfactant includes a quaternary ammonium compound.
23. The method of claim 17 , wherein the concentrate aqueous composition includes a dispersant.
24. The method of claim 17 , wherein the surfactant includes at least one nonionic surfactant and at least one anionic surfactant.
25. A method of forming a use solution, the method comprising:
mixing water with a concentrate aqueous composition to create the use solution, the concentrate aqueous composition comprising:
at least one surfactant;
a fatty acid; and
a polyacrylate with a molecular weight between about 500,000 and about 3 million, wherein the concentrate aqueous composition is mixed with sufficient water to form a use solution having between about 0.2% and about 5% by weight polyacrylate.
26. The method of claim 25 , wherein the concentrate aqueous composition further comprising an antioxidant, a chelant, and/or a solvent.
27. The method of claim 25 , wherein the concentrate aqueous composition further includes between about 0.01% and about 10.0% by weight propylene glycol.
28. The method of claim 25 , wherein the use solution has a pH of about 4.5 or less.
29. The method of claim 17 , wherein the fatty acid is hexanoic acid, butyric acid, octanoic acid, heptanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, or a mixture thereof.
30. The method of claim 25 , wherein the surfactant includes a quaternary ammonium compound.
31. The method of claim 25 , wherein the surfactant includes at least one nonionic surfactant and at least one anionic surfactant.
32. A method of using a sprayable composition, the method comprising:
dispensing an aqueous sprayable composition as droplets having a mean size of greater than 50 microns using a low velocity sprayer, the aqueous sprayable composition comprising at least one surfactant and at least one surfactant and between about 0.002%, a fatty acid, and about 0.006% by weight of an anti-mist component selected from the group consisting of polyethylene oxide with a molecular weight between about 3,000,000 and about 7,000,000, polyacrylamide and combinations thereof.
33. The method of claim 32 , wherein dispensing the aqueous sprayable composition comprises dispensing the aqueous sprayable composition as droplets, wherein less than 0.01% of the droplets dispensed have a size less than 11 microns.
34. The method of claim 32 , wherein the aqueous sprayable composition has a pH of 4.5 or less.
35. The method of claim 32 , wherein the aqueous sprayable composition further comprises a quaternary ammonium compound.
36. The method of claim 32 , wherein the aqueous sprayable composition further comprises an antioxidant, a chelant, and/or a solvent.
37. The method of claim 32 , wherein the concentrate aqueous composition includes a dispersant.
38. The method of claim 32 , wherein the surfactant includes at least one nonionic surfactant and at least one anionic surfactant.
39. A method of using a sprayable composition, the method comprising:
dispensing an aqueous sprayable composition as droplets having a mean size of greater than about 50 microns using a low velocity sprayer, the aqueous sprayable composition comprising a fatty acid and at least one surfactant and between about 0.2% and about 5.0% by weight of a polyacrylate with a molecular weight between about 500,000 and about 3 million.
40. The method of claim 39 , wherein dispensing the aqueous sprayable composition comprises dispensing the aqueous sprayable composition as droplets, wherein less than 0.01% of the droplets dispensed have a size less than 11 microns.
41. The method of claim 39 , wherein the aqueous sprayable composition has a pH of 4.5 or less.
42. The method of claim 39 , wherein the aqueous sprayable composition further comprises a quaternary ammonium compound.
43. The method of claim 39 , wherein the aqueous sprayable composition further comprising an antioxidant, a chelant, and/or a solvents.
44. The method of claim 39 , wherein the surfactant includes at least one nonionic surfactant and at least one anionic surfactant.