SURFACTANT-CONTAINING FOAMS

• US 20150218496A1
• Filed: 04/14/2015
• Published: 08/06/2015
• Est. Priority Date: 10/22/2012
• Status: Abandoned Application

• Current Assignee: Henkel AG & Co KGaA
• Original Assignee: Henkel AG & Co KGaA
• Inventors: Schmiedel, Peter, Reichert, Christian, Panzica, Danilo, Stubenrauch, Cosima, Volker, Michael, Trebbe, Uwe
• Application Number:
  US14/685,763
• Publication Number:
  US 20150218496A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C11D 11/00 Special methods for preparing compositions containing mixtures of detergents
• CPC Class Codes: C11D 17/00 Detergent materials or soaps characterised by their shape or physical properties shaping soap C11D13/14
• CPC Class Codes: C11D 2111/42 Application of foam or a temporary coating on the surface to be cleaned
• CPC Class Codes: C11D 3/0094 High foaming compositions
• CPC Class Codes: C11D 3/1213 Oxides or hydroxides, e.g. Al2O3, TiO2, CaO or Ca(OH)2
• CPC Class Codes: C11D 3/1233 Carbonates, e.g. calcite or dolomite
• CPC Class Codes: C11D 3/2013 fatty or with at least 8 carbon atoms in the alkyl chain
• CPC Class Codes: C11D 3/2086 Hydroxy carboxylic acids-salts thereof

Abstract

The application describes surfactant-containing foams whose liquid phases exhibit yield points, the manufacture thereof, and packaged products that contain said foams.

Claims

1. A surfactant-containing foam whose liquid phase exhibits a yield point.

2. The surfactant-containing foam according to claim 1, wherein the yield point of the liquid phase is at least 0.1 Pa.

3. The surfactant-containing foam according to claim 1, wherein the liquid phase intrinsically exhibits a viscosity from 0.1 to 50 Pas at a shear rate of 10 s⁻

1 at a temperature of 20°

C.

4. The surfactant-containing foam according to claim 1, wherein the liquid phase contains one or more thickeners and/or is present in the form of a liquid-crystal surfactant phase.

5. The surfactant-containing foam according to claim 1, wherein the foam contains 10 to 60% by volume gas and 40 to 90% by volume liquid phase.

6. The surfactant-containing foam according to claim 1, wherein the gas bubbles of the foam have a diameter from 10 μ

m to 3 mm.

7. The surfactant-containing foam according to claim 1, wherein the surfaces of the gas bubbles are coated with solid particles, and the foam comprises one or more additives selected from the group consisting of:

fatty alcohols having alkyl chains having at least 14 carbon atoms;

hydroxystearic acid;

hydrotalcite;

aluminum oxide; and

surfactants that, under the conditions of the liquid phase of the foam, are insoluble and are present in the form of particles or phase-separated droplets.

8. The surfactant-containing foam according to claim 1, wherein the liquid phase contains 2 to 40 wt % surfactant.

9. The surfactant-containing foam according to claim 1, wherein the liquid phase contains 20 to 98 wt % water.

10. The surfactant-containing foam according to claim 1, wherein the foam, with the exception of the gaseous constituents, is water-soluble or water-dispersible.

11. The surfactant-containing foam according to claim 1, wherein the foam has a viscosity from 0.5 to 50 Pas at a shear rate of 10 s⁻

1 at a temperature of 20°

C.

12. A method for manufacturing a surfactant-containing foam according to claim 1, in wherein a surfactant-containing liquid phase is foamed by introducing gas into the liquid phase, by passing the liquid phase through a gas, or mechanically.