Process for cleaning vertical or inclined hard surfaces

Details Process for cleaning vertical or inclined hard surfaces Process for cleaning vertical or inclined hard surfaces

1997-08-11

1999-05-25

Kopec, Mark

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Specific organic component

510119, 510123, 510235, 510237, 510243, 510245, 510362, 510363, 510356, 510432, 510470, 510238, 510242, C11D 175, C11D 322, C11D 343

Patent

active

059069732

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

This invention relates generally to the cleaning of hard surfaces in the industrial, social or communal sectors such as, for example, the cleaning of surfaces in the food industry, in canteens, swimming baths, warehouses, etc. More particularly, the invention relates to a cleaning formulation which thickens when mixed with water so that, after manual application or after application by spray or foam applicators, the contact time of the formulation on vertical or inclined surfaces is increased, so that its cleaning effect is enhanced. After the intended contact time, the formulation can be rinsed off with water.
Particular interest attaches to low-viscosity and, hence, readily pumpable cleaning concentrates which, on dilution with water, undergo an increase in viscosity to the in-use concentration and, in addition, build up a yield value which is particularly desirable. This enables the low-viscosity concentrate to be diluted with water immediately before application to the surfaces to be cleaned so that a thickened cleaning solution which adheres well to inclined or vertical surfaces is formed. The mixing process preferably takes place in a mixing nozzle from which the cleaning solution to be thickened is applied to the surfaces to be treated in the form of a film or a foam.
EP-B-265 979 describes thickening compounds for the preparation of thickened, aqueous single-phase cleaning formulations consisting of 0.1 to 10% by weight of a surfactant, for example a tertiary amine oxide, and of 0.01 to 3% by weight of an organic anionic sulfonate. EP-A-595 590 describes aqueous concentrates which produce a viscous cleaning solution when diluted with water and which contain tertiary amine oxides, sulfate- or sulfonate-based anionic surfactants, hydrophobicized polymer surfactants, diluents such as, for example, lower alcohols or lower alkyl ethers and alkalis. EP-A-314 232 discloses aqueous mixtures which undergo an increase in viscosity when diluted with water and which contain, for example, an amine oxide, an anionic surfactant, non-surface-active compounds ionizable in water and also water.
WO 86/05199 describes a cleaning formulation for hard surfaces which contains a combination of an alkyl polyglycoside with, for example, tertiary alkylamine oxides. This cleaning formulation does not contain a water-soluble organic solvent based on alcohol or glycol ether and does not thicken when diluted with water. EP-A-75 996 discloses a laundry detergent composition which contains 1 to 90% of an alkyl polysaccharide, 1 to 90% of a nonionic surfactant, for example a tertiary amine oxide, 0 to 90% by weight of a detergent builder and 0.01 to 2% of an anionic optical brightener. This known formulation also contains no organic solvent and does not have any thickening properties, which would actually be a disadvantage in the washing of laundry.


BRIEF SUMMARY OF THE INVENTION

The problem addressed by the present invention was to provide a new low-viscosity cleaning concentrate which would undergo an increase in viscosity when diluted with water.
The present invention relates to aqueous cleaning formulations containing amine oxide which can be thickened by adding water, characterized in that they contain: to general formula (I): ##STR1## in which R.sup.1 is a saturated or mono- to tri-unsaturated alkyl moiety containing 10 to 20 carbon atoms and R.sup.2 and R.sup.3 independently of one another represent methyl, ethyl or propyl moieties or hydroxy derivatives thereof; to general formula (II): hydroxyalkyl moiety containing 6 to 30 carbon atoms or an aryl moiety, R.sup.5 is a difunctional hydrocarbon radical containing 2 to 4 carbon atoms, y is a number of 0 to 12, Z is a sugar moiety containing 5 or 6 carbon atoms and x is a number of 1 to 10; selected from the group of monohydric or polyhydric alcohols, glycol ethers and alkanolamines and active substances.


DETAILED DESCRIPTION OF THE INVENTION

The individual components used in the composition according to the invention are known as ingredients

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patent: 5154850 (1992-10-01), Deguchi et al.
patent: 5389282 (1995-02-01), Saijo et al.
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patent: 5637758 (1997-06-01), Sajic et al.
Ullmann's Encyclopedia of Industrial Chemistry 5(A8): 350-57 (1987).

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