Long lasting cleaning foam

Patent metadata

Field	Value
Publication number	US-10550355-B2
Application number	US-201515543324-A
Country	US
Kind code	B2
Filing date	Jan 15, 2015
Priority date	Jan 15, 2015
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

The invention relates to an aqueous foaming cleaning composition for removing soil at low temperatures from a surface to be cleaned, characterized in, that the aqueous foaming cleaning composition comprises: a linear and/or branched C12-alkyl dimethylamine oxide or C12-alkyl diethylamine oxide or C12-alkyl methylethylamine oxide; a linear and/or branched C14-alkyl dimethylamine oxide or C14-alkyl diethylamine oxide or C14-alkyl methylethylamine oxide; at least one anion tenside of: a dodecyl (oxyethylen)w sulfat, wherein w represents an average addition mole number ranging from about 1 to about 10, and/or at least one polyoxyalkylene alkyl ether carboxylic acid or salt thereof represented by formula (I): RO-(AO)n−1-A′-COOmM (I) wherein, R represents a linear and/or branched alkyl group having about 8 to about 18 carbon atoms; AO represents an alkylene oxy group having about 2 to about 4 carbon atoms; n represents an average addition mole number ranging from about 1 to about 20; A′ represents an alkylene group having about 1 to about 3 carbon atoms; M represents H or a cation; and m represents the number equal to a valence number of M; —a source of alkalinity; and —water.

First claim

We claim:

1. An aqueous foaming cleaning composition for removing soil at low temperatures from a surface to be cleaned comprising:
from about 0.1 to about 10 wt. % of a mixture of (1) a C 12 amine oxide component comprising at least one of a linear and/or branched C 12 -alkyl dimethylamine oxide, C 12 -alkyl diethylamine oxide, or C 12 -alkyl methylethylamine oxide; and (2)
a C 14 amine oxide component comprising at least one of a linear and/or branched C 14 -alkyl dimethylamine oxide, C 14 -alkyl diethylamine oxide, or C 14 -alkyl methylethylamine oxide;

from about 0.1 to about 10 wt. % of a dodecyl (oxyethylen) w sulfate, wherein w represents an average addition mole number ranging from about 1 to about 10;
from about 0.1 to about 10 wt. % of at least one polyoxyalkylene alkyl ether carboxylic acid or salt thereof represented by formula (I):
RO-(AO) n−1 -A′-COO m M  (I)

wherein,
R represents a linear and/or branched alkyl group having about 8 to about 18 carbon atoms;
AO represents an alkylene oxy group having about 2 to about 4 carbon atoms;
n represents an average addition mole number ranging from about 1 to about 20;
A′ represents an alkylene group having about 1 to about 3 carbon atoms;
M represents H or a cation; and
m represents the number equal to a valence number of M;

from about 0.5 to about 10 wt. % of a source of alkalinity;
from about 1 to about 5 wt. % of a hydrotrope;
from about 0.5 to about 2 wt. % of a polycarboxylate; and
at least 45 wt. % water.

2. The composition according to claim 1 , wherein the weight-% ratio of the C 12 amine oxide component to the C 14 amine oxide component is about 10:1 to about 1:10, whereby the weight-% is based on the total weight of the composition.

3. The composition according to claim 1 , comprising
lauryl dimethyl amine oxide,
tetradecyl dimethyl amine oxide;
an anionic surfactant comprising:
a dodecyl (oxyethylen) w sulfate, wherein w represents an average addition mole number ranging from about 1 to about 10, preferably about 2 to about 8 and more preferred about 3 to about 5, and
at least one polyoxyalkylene alkyl ether carboxylic acid or salt thereof represented by formula (I),

wherein,
R represents a linear and/or branched alkyl group having about 10 to about 16 carbon atoms;
AO represents an alkylene oxy group having 2 to about 3 carbon atoms;
n represents an average addition mole number ranging from 2 to about 10;
A′ represents an alkylene group having about 1 to 2 carbon atoms;
M represents H or a cation; and
m represents the number equal to a valence number of M.

4. The composition according to claim 1 , wherein the weight-% ratio a) of the total amount of amine oxides to b) the total amount of anionic surfactant are in the range of about 1:4 to about 1:0.2, whereby the weight-% is based on the total weight of the composition.

5. The composition according to claim 1 , wherein the source of alkalinity is selected from the group comprising alkali metal hydroxides, alkali metal salts, phosphates, amines, and mixtures thereof.

6. The composition according to claim 1 , wherein the hydrotrope comprises cumene sulfonate.

7. The composition according to claim 1 wherein the polycarboxylate has a molecular weight of about 500 Mw to about 50000 Mw based on a totally neutralized sodium polymeric polycarboxylate.

8. The aqueous foaming cleaning composition according to claim 1 , wherein the aqueous foaming cleaning composition has a pH in the range of about 7.0 to about 14.0.

9. The composition of claim 1 having a foam stability, wherein the reduction of foam volume after 1 minute is about 10 vol.-% to 20 vol.-%, based on the initial foam volume.

10. The composition of claim 1 having a mean foam diameter pore size D 50 in the range of ≥10 μm to about ≤2000 μm.

11. A method for removing soil from a surface to be cleaned comprising applying to the surface a composition comprising:
from about 0.1 to about 10 wt. % of a mixture of (1) a C 12 amine oxide component comprising at least one of a linear and/or branched C 12 -alkyl dimethylamine oxide, C12-alkyl diethylamine oxide, or C 12 -alkyl methylethylamine oxide; and (2) a C 14 amine oxide component comprising at least one of a linear and/or branched C 14 -alkyl dimethylamine oxide, C 14 -alkyl diethylamine oxide, or C 14 -alkyl methylethylamine oxide;
from about 0.1 to about 10 wt. % of a dodecyl (oxyethylen) w sulfate, wherein w represents an average addition mole number ranging from about 1 to about 10;
from about 0.1 to about 10 wt. % of at least one polyoxyalkylene alkyl ether carboxylic acid or salt thereof represented by formula (I):
RO-(AO) n−1 -A′-COO m M  (I)

wherein,
R represents a linear and/or branched alkyl group having about 8 to about 18 carbon atoms;
AO represents an alkylene oxy group having about 2 to about 4 carbon atoms;
n represents an average addition mole number ranging from about 1 to about 20;
A′ represents an alkylene group having about 1 to about 3 carbon atoms;
M represents H or a cation; and
m represents the number equal to a valence number of M;

from about 0.5 to about 10 wt. % of a source of alkalinity;
from about 1 to about 5 wt. % of a hydrotrope;
from about 0.5 to about 2 wt. % of a polycarboxylate; and
at least 45 wt. % water.

12. The method of claim 11 comprising:
a) optional applying a pre-treatment solution, preferably water, to the surface to be cleaned for an amount of time sufficient to substantially penetrate a soil on the surface to be cleaned and/or pre-clean a soil on the surface to be cleaned;
b) applying the composition to the surface to be cleaned for an amount of time for cleaning the surface to be cleaned;
c) optional a rinsing step before and/or after the application (a) and/or (b).

13. The method of claim 11 , wherein, the soil is removed from a surface using a clean-out-of-place system.

Assignees

• Ecolab Usa Inc

Inventors

• Kleine Tillmann
• Schmidt Michael
• Nöding Gunnar
• Richter Daniela
• Fehlis Christine
• Maas Virginie
• Caussin De Schneck Claudia

Classifications

• C11D3/044

  Hydroxides or bases · CPC title

• C11D1/29

  Sulfates of polyoxyalkylene ethers · CPC title

• C11D1/75

  Amino oxides · CPC title

• C11D1/83 Primary

  Mixtures of non-ionic with anionic compounds · CPC title

• C11D1/06

  Ether- or thioether carboxylic acids · CPC title