Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1996-02-09
1999-11-09
Medley, Margaret
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510276, 510238, 510356, 510362, 510365, 510370, 510421, C11D 300, C11D 700
Patent
active
059814551
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to cleaning compositions. Although the present invention applies primarily to hard surface cleaning compositions, it may also be of interest for other cleaning compositions including dishwashing and laundry detergent compositions.
BACKGROUND
A variety of cleaning compositions have been described in the art. There is a constant strive for the development of cleaning compositions with better performance in several respects. Better cleaning on all soils, including greasy soils and soap scum is of course a principal object, both for neat and diluted compositions which are often used in the cleaning of hard surfaces. However other properties are also highly desirable, particularly mildness to the skin, the ability to remove soap scum and to produce limited suds.
All such objects can be independently achieved by using various ingredients which are generally added for a specific purpose. For instance silicone oils are typically added solely to control sudsing. Another example is the use of solvents to boost neat cleaning. While such additives meet the desired object, they also grief the cost of formulating efficient cleaning compositions.
It has now been found that certain nonionic surfactants, namely alkoxylated alcohols with a short alkyl chain in the alcohol, hereinafter short chain alkoxylated alcohols, meet the above objects. Indeed, it has been found that said short chain alkoxylated alcohols are particularly efficient in cleaning. Such short chain alkoxylated alcohols further meet the other objects of providing surfactants which are low foaming and which are mild to the skin. Another advantage is that such short chain alkoxylated alcohols are particularly suitable for formulating concentrated cleaning compositions.
EP 125 854 discloses a composition comprising 2.7% of C8EO4.8 together with 14.2% of ammonium C11.8 linear alkyl benzene sulphonate, 10.4 of ammonium C12-13 alkyl ethoxylated sulphate, 8.6% magnesium C12-13 alkyl sulphate, 4.0% coconut monoethanolamide and 9.1% ethanol and water. EP 125 854 however fails to draw the difference between long and short chain nonionic surfactants.
EP 496 188 discloses an aqueous solution comprising 3% of C8EO6 and 8% maleic acid. EP 486 188 does not draw the difference between long and short chain nonionic surfactants.
SUMMARY OF THE INVENTION
The present invention encompasses aqueous cleaning compositions comprising a short chain alkoxylated alcohol surfactant according to the formula RO(A)nH, wherein R is a C6 to C10 hydrocarbon chain, A is ethylene oxide or propylene oxide or mixtures thereof and n is of from 1 to 10, or mixtures thereof, and other conventional cleaning ingredients selected from anionic, cationic, zwitterionic and nonionic co-surfactants, including short chain co-surfactants, builders, solvents, bleaches and minors including dyes, perfumes, or mixtures thereof.
The present invention also encompasses such compositions in a concentrated form, the use of said surfactants for neat grease cleaning, for dilute grease cleaning and for soap scum cleaning. The present invention further encompasses the use of said surfactants as skin mild surfactants and as low foaming surfactants.
DETAILED DESCRIPTION OF THE INVENTION
In a main embodiment, the present invention encompasses aqueous compositions which comprise conventional cleaning ingredients and a short chain alkoxylated alcohol surfactant.
The short chain nonionic surfactants for use herein are alkoxylated alcohols according to the formula RO(A)nH, wherein R is a C6 to C10 hydrocarbon chain and n, representing the average alkoxylation degree, is from 1 to 10, or mixtures thereof. R is indifferently straight or branched. A is ethylene oxide or propylene oxide or mixtures thereof. Similar nonionic surfactants which have longer R groups than those of the present invention are known in the art and are commonly used in cleaning compositions. The present invention is based on the finding that alkoxylated alcohols with shorter R groups provide better clean
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Carrie Michel Jean
Cilley William Ajalon
Geboes Peter Rosalia Joannes
Morini Massimo
Scott Louise Gail
Aylor Robert B.
Medley Margaret
The Procter & Gamble & Company
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