Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Liquid composition
Patent
1999-02-24
2000-05-23
Douyon, Lorna M.
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Liquid composition
510379, 510414, 510428, 510434, 510536, 134 40, 134 42, B08B 308, C11D 114, C11D 183, C11D 337, C11D 3395
Patent
active
060666145
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to cleaning compositions, especially to thickened liquid cleaning compositions exhibiting effective cleaning performance and viscosity.
BACKGROUND OF THE INVENTION
Efficient cleaning performance and viscosity of the cleaning compositions are two requirements which drive consumer acceptance of cleaning products. Indeed, viscosity enables cleaning compositions to remain long enough on the surface to provide an effective cleaning action. Such a requirement is of particular utility in cleaning compositions intended to be applied "as is"to non-horizontal structural surfaces such as walls, windows and sanitary fittings such as sinks, baths, showers, wash basins and WCs. More particularly, viscosities of 10 cps to 4000 cps are suitable. On the other hand, effective cleaning is important, especially on greasy and oily soils and/or where the composition is thereafter diluted.
It is therefore an object of the present invention to provide cleaning compositions having effective cleaning performance and viscosity.
The Applicant has now found that the combination of a surfactant system, comprising a short chain surfactant and a long chain surfactant, and a polycarboxylate polymer in a liquid cleaning composition fulfils such a need.
Another advantage of the present invention is that it provides stable compositions, especially in presence of a bleach component.
Another advantage of the present invention is that it provides liquid cleaning compositions which are safe to the user when said composition is sprayed onto the surface to be treated.
SUMMARY OF THE INVENTION
The present invention is a liquid cleaning composition comprising: surfactant, said surfactants comprising a hydrophobic portion and a hydrophilic portion, wherein the chain length of the hydrophobic portion of the short chain surfactant is C.sub.6 to C.sub.10 and the chain length of the hydrophobic portion of the long chain surfactant is C.sub.11 to C.sub.20 carbon atoms; and the short chain surfactant is C.sub.6 to C.sub.8, the short chain and the long chain surfactant are present in a weight ratio of said short chain to said long chain surfactant of less than 4:1
The present invention further encompasses the use of a polycarboxylate polymer in a liquid cleaning composition, in a sprayed form, for preventing or reducing inhalation of said composition by the user as said composition is sprayed.
In a further aspect of the invention, there is provided a method for cleaning a hard surface by applying on said surface an effective amount of a composition of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
A surfactant system is an essential feature of the invention. The surfactant system comprises a short chain surfactant an d a long chain surfactant. All surfactants have in common that they comprise a hydrophobic portion and a hydrophilic portion.
For the purpose of the invention, where the chain length of the hydrophobic portion of the short chain surfactant is C.sub.6 to C.sub.8, the short chain and the long chain surfactant are present in a weight ratio of said short chain to said long chain surfactant of less than 4:1, preferably less than 2:1, more preferably less than or equal to 1:1.
By short chain surfactant, it is meant herein surfactants which comprise a C.sub.6 -C.sub.10 alkyl chain as their hydrophobic portion. Such short chain surfactants are accordingly those conventionally used in this field, but with a shorter alkyl chain. Suitable short chain surfactants for use herein are selected from the group consisting of C.sub.6 -C.sub.10 alkyl sulphates (C.sub.6 -C.sub.10 SO.sub.4), alkyl ether sulphates (C.sub.6 -C.sub.10 (OCH.sub.2 CH.sub.2)eSO.sub.4), alkyl sulphonates (C.sub.6 -C.sub.10 SO.sub.3), alkyl succinates (C.sub.6 -C.sub.10 OOCCH.sub.2 CH.sub.2 COOZ), alkyl carboxylates (C.sub.6 -C.sub.10 COOM), alkyl ether carboxylates (C.sub.6 -C.sub.10 (OCH.sub.2 CH.sub.2).sub.e COOM), alkyl sarcosinates (C.sub.6 -C.sub.10 CON (CH.sub.3)R), alkyl sulpho succinates (C.sub.6 -C.sub.10
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Orlandini Laura
Petri Marco
Sirianni Giuseppe
Douyon Lorna M.
Echler, Sr. Richard S.
Petruncio John M
Rasser Jacobus C.
The Proctor & Gamble Company
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