Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1996-05-28
1999-08-17
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510192, 510470, 510502, C11D 110, C11D 148
Patent
active
059393726
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to the use of mixtures of selected anionic and nonionic surfactants for the production of toilet blocks.
2. Statement of Related Art
Prior Art
Toilet blocks are solid cleaning preparations which, by means of a fastening, can either be hung in the cistern or fixed below the inner rim of the toilet bowl. The function is to clean the surface of the toilet bowl during flushing and in particular to mask unpleasant odors by the release of fragrances. Surfactants, builders, inorganic salts and of course fragrances and dyes are normally used for their production.
Several formulations are known from the prior art. For example, U.S. Pat. No. 4,534,879 (Procter & Gamble) describes solid cleaning preparations containing C.sub.9-15 alkyl sulfates, alkyl benzenesulfonates and water-insoluble inorganic salts as their surfactant component.
EP-A 0 014 979 (Henkel) describes toilet blocks containing alkyl benzenesulfonates, alkyl sulfates and olefin sulfonates as anionic surfactants and fatty alcohol or alkylphenol ethoxylates as nonionic surfactants.
Other toilet blocks based on anionic surfactants of sulfate and/or sulfonate structure are known, for example, from EP-A 018 679, EP-A 0 114 427, EP-A 0 114 429, EP-A 0 122 664, EP-A 0 167 210, EP-A 0 184 416 and EP-A 0 206 725.
EP-A 0 268 967 (Henkel) describes toilet blocks typically containing 22% of sodium lauryl sulfate, 12% of coconut oil fatty acid monoethanolamide, 2% of borax, 48% of sodium sulfate, 5% of sodium citrate, 6% of pine oil and 5% of dye.
It has now been found that the known products are not always satisfactory from the performance point of view. There is a particular interest above all in products having a slow dissolving rate, i.e. toilet blocks which will last for a greater of number of flushes. There is also a need for formulations which would have advantages in regard to processability (kneadability, dimensional stability, saturation tendency, etc.) and which would form a more stable foam.
Accordingly, the problem addressed by the invention was to provide such products.
DESCRIPTION OF THE INVENTION
The present invention relates to the use of detergent mixtures for the production of toilet blocks containing containing 6 to 18 carbon atoms and X is an alkali metal or alkaline earth metal, ammonium, alkyl ammonium, alkanolammonium or glucammonium, containing 6 to 18 carbon atoms, m is a number of 1 to 10 and X is an alkali or alkaline earth metal, ammonium, alkyl ammonium, alkanolammonium or glucammonium, and carbon atoms, G is a sugar unit containing 5 or 6 carbon atoms and p is a number of 1 to 10, and/or (IV): ##STR1## in which R.sup.4 CO is an aliphatic acyl radical containing 6 to 22 carbon atoms, R.sup.5 is hydrogen, an alkyl or hydroxyalkyl radical containing 1 radical containing 3 to 12 carbon atoms and 3 to 10 hydroxyl groups.
It has surprisingly been found that the use of the detergent mixtures in accordance with the invention leads to toilet blocks which are distinguished from commercial products by a longer life, i.e. a slower dissolving rate, improved foam and easier processability.
Fatty alcohol sulfates, which are also known as alkyl sulfates, are known anionic surfactants which are preferably obtained by sulfation of native fatty alcohols or synthetic oxoalcohols and subsequent neutralization.
Typical examples of fatty alcohol sulfates which may be used as component a) are the sodium salts of sulfation products of caproic alcohol, caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, palmitoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, linolyl alcohol, linolenyl alcohol, elaeostearyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol and erucyl alcohol and technical alcohol cuts obtained by hydrogenation of native fatty acid methyl ester fractions or of aldehydes from Roelen's oxo synthesis. Fatty alcohol sulfates containing 12 to 18 and i
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Bauer Volker
Grosser Anke
Kischkel Ditmar
Schmid Karl
Schmidt Wolfgang
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Lieberman Paul
Millson Jr. Henry E.
Ogden Necholus
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