IP Library Granted Patent US 10,550,355
Granted Patent B2
US 10,550,355 · App. 15/543,324 · Granted Feb 4, 2020

Long lasting cleaning foam

Inventors: Tillmann Kleine (Köln, DE); Michael Schmidt (Mönchengladbach, DE); Gunnar Nöding (Bensheim, DE); Daniela Richter (Düsseldorf, DE); Christine Fehlis (Langenfeld, DE); Virginie Maas (Kempen, DE); Claudia Caussin De Schneck (Düsseldorf, DE)
Assignee: Ecolab USA Inc.
C11D1/83C11D1/06C11D1/29C11D1/75C11D3/044C11D11/0023
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Quick Facts
Patent No.
US 10,550,355
App. No.
15/543,324
Granted
Feb 4, 2020
Kind
B2
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 C 12 -alkyl dimethylamine oxide or C 12 -alkyl diethylamine oxide or C 12 -alkyl methylethylamine oxide; a linear and/or branched C 14 -alkyl dimethylamine oxide or C 14 -alkyl diethylamine oxide or C 14 -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′-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; —a source of alkalinity; and —water.

Claims (59)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 18, 2019
From: KLEINE, TILLMANN; SCHMIDT, MICHAEL; NÖDING, GUNNAR; RICHTER, DANIELA; FEHLIS, CHRISTINE; MAAAS, VIRGINIE; CAUSSIN DE SCHNECK, CLAUDIA
To: ECOLAB USA INC.
Reel/Frame 050413/0929 →
Continuity (1)
Related Publication 20180002634A1 · Jan 4, 2018