Back to results
US 2019/0291146 A1Published application
Reduced misting and clinging chlorine-based hard surface cleaner
AssigneeEcolab USA Inc.
InventorsCharles Allen Hodge, Christopher Michael McGuirk, Amanda Ruth Blattner, Claire Lucille Notermann
Life of this patent
Estimating the term…
Abstract
Alkaline sprayable aqueous compositions are disclosed. In particular, sprayable alkaline aqueous chlorine compositions including a surfactant system for modifying the viscosity of the composition, are combined with an alkalinity source and a chlorine source. Methods of cleaning having reduced amounts of airborne particulates of the composition during spray applications are also provided according to the invention, namely reduction of airborne particulates having a micron size of 10 or less within a breathing zone of a user of less than or equal to 60 particles/cm3.
Claims20
1:
- An aqueous, ready-to-use chlorine-based cleaning composition comprising:
- from about 50 wt-% and about 99 wt-% water;
- at least one alkali metal hypochlorite present in an amount between about 0.1 wt-% and about 35 wt-%;
- from about 0.1 wt-% and about 10 wt-% an alkali metal alkalinity source;
- from about 1.5 wt-% or greater of a surfactant system comprising a first surfactant, a second surfactant and optionally a third surfactant, wherein the first surfactant is an alkyl amine oxide, the second surfactant is a C8-C20 alkane sulfonate, and the third surfactant is a C8-C12 carboxylate, wherein the surfactant system forms micelles to provide viscoelasticity.
2 more elements
2:
- The composition of claim 1, wherein the actives ratio of the first surfactant to the second and optionally third surfactants is at least about 2:1 and wherein the second surfactant and optionally the third surfactant are present in a total amount of at least about 1.75% actives.
3:
- The composition of claim 1, wherein the actives ratio of the first surfactant to the second and optionally third surfactants is at least about 3:1 and wherein the second surfactant and optionally the third surfactant are present in a total amount of at least about 1.5% actives.
4:
- The composition of claim 1, wherein the actives ratio of the first surfactant to the second and optionally third surfactants is at least about 4:1 and wherein the second surfactant and optionally the third surfactant are present in a total amount of at least about 1% actives.
5:
- The composition of claim 1, wherein the first surfactant is hexadecyldimethylamineoxide, the second surfactant is a C14-C17 sulfonate, and the third surfactant is a C9 sodium fatty carboxylate, and wherein the alkali metal alkalinity source is an alkali metal hydroxide.
6:
- The composition of claim 1, wherein the micelles are rod micelles that intertwine.
7:
- The composition of claim 1, wherein the alkali metal hypochlorite is present in an amount between about 0.1 wt-% and about 30 wt-% and wherein the alkali metal alkalinity source is an alkali metal hydroxide present in an amount between about 0.1 wt-% and about 5 wt-%.
8:
- The composition of claim 1, wherein the composition produces a total concentration of misting of particles having a micron size of 10 or less within a breathing zone of a user as measured in total number of particles per cm3 of 60 particles/cm3 or fewer.
9:
- A system for applying a chlorine based product, the system comprising:
- a sprayer comprising a spray head connected to a spray bottle;
- and
- an aqueous, ready-to-use chlorine-based solution contained by the spray bottle and the spray head adapted to dispense the aqueous solution, the aqueous solution comprising:
- an alkali metal hypochlorite;
- an alkali metal alkalinity source;
- a surfactant system comprising a tertiary alkyl amine oxide, a C8-C20 alkyl sulfonate;
- and optionally a C8-C12 carboxylate, wherein the surfactant system is present in a total actives amount of at least about 1.5% of the aqueous solution and forms micelles to provide viscoelasticity.
5 more elements
10:
- The system of claim 9, wherein the alkali metal alkalinity source is an alkali metal hydroxide.
11:
- The system of claim 9, wherein the alkyl sulfonate is a C14-C17 alkane sulfonate and wherein the alkyl amine oxide is hexadecyldimethylamineoxide.
12:
- The system of claim 9, wherein the C8-C12 carboxylate is a C9 sodium fatty carboxylate and wherein the alkyl amine oxide is hexadecyldimethylamineoxide.
13:
- The system of claim 9, wherein the actives ratio of the alkyl amine oxide to the C8-C20 alkyl sulfonate and the C8-C20 carboxylate is from about 2:1 to about 4:1 and wherein said surfactant system includes from about 1.5% to about 2% actives.
14:
- The system of claim 9, wherein the sprayer is a low velocity sprayer.
15:
- The system of claim 9, wherein the aqueous, ready-to-use chlorine-based solution includes from about 1% to about 2% actives of said surfactant system comprising hexadecyldimethylamineoxide, a C8-C20 sodium alkane sulfonate and a C8-C12 carboxylate having an actives ratio of the alkyl amine oxide to the C8-C20 alkyl sulfonate and the C8-C20 carboxylate of at least about 4:1.
16:
- A method for cleaning a hard surface, the method comprising:
- applying an aqueous, ready-to-use, chlorine-based cleaning composition according to claim 1 to a hard surface with a trigger sprayer;
- and
- wiping the hard surface to remove the aqueous, ready-to-use, chloride-based cleaning composition.
1 more element
17:
- The method of claim 16, wherein surfactant system comprises hexadecyldimethylamineoxide, a C8-C20 sodium alkane sulfonate and a C8-C12 carboxylate, wherein the hexadecyldimethylamineoxide, C8-C20 sodium alkane sulfonate and C8-C12 carboxylate are present in active amount between about 1.5% and about 2.0% of the aqueous cleaning composition, and wherein the actives ratio of the hexadecyldimethylamineoxide to the C8-C20 sodium alkane sulfonate and the C8-C20 carboxylate is at least about 2:1.
18:
- The method of claim 16, wherein the C8-C20 sodium alkane sulfonate includes a C14-C17 sulfonate.
19:
- The method of claim 16, wherein the C8-C12 carboxylate includes a C9 sodium fatty carboxylate.
20:
- The method of claim 16, wherein the alkali metal hypochlorite is present in an actives amount between about 0.1% and about 25% and wherein the alkali metal alkalinity source is an alkali metal hydroxide present in an amount between about 0.1 wt-% and about 10 wt-%.