EP0848746A1 - Aqueous cleaning agent - Google Patents

Aqueous cleaning agent

Info

Publication number
EP0848746A1
EP0848746A1 EP96920820A EP96920820A EP0848746A1 EP 0848746 A1 EP0848746 A1 EP 0848746A1 EP 96920820 A EP96920820 A EP 96920820A EP 96920820 A EP96920820 A EP 96920820A EP 0848746 A1 EP0848746 A1 EP 0848746A1
Authority
EP
European Patent Office
Prior art keywords
cleaning agent
acid
alkoxylation
alcohol
degree
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96920820A
Other languages
German (de)
French (fr)
Other versions
EP0848746B1 (en
Inventor
Heiko Faubel
Harald Bossek
Karl-Heinz Rogmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecolab GmbH and Co OHG
Original Assignee
Henkel Ecolab GmbH and Co KG
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • C11D1/8255—Mixtures of compounds all of which are non-ionic containing a combination of compounds differently alcoxylised or with differently alkylated chains
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the present invention relates to an aqueous cleaning agent which contains nonionic surfactants and is suitable for cleaning in the sanitary field.
  • the pH of acidic cleaning agents is usually between 0 and 2. Such a low pH makes special demands on the stability of the components.
  • the thickeners used to increase the viscosity e.g. Amines or amine dehvates often supply products that are not stable in viscosity for a sufficient period of time.
  • the viscosity of the products can vary greatly as a function of the storage temperature.
  • Other typical thickeners such as guar flour, xanthan gum or cellulose derivatives are not stable in acidic media and quickly lose their thickening properties. Another disadvantage of these compounds is that they make no contribution to the cleaning performance of the cleaning agents.
  • the thickeners used in neutral and alkaline detergents mean that the detergents dissolve only with difficulty in water in the event of a dilution process which may be provided. In addition to the aforementioned thickeners, this disadvantage can also be observed with synthetic polymers.
  • nonionic surfactants especially tertiary amines, used as thickeners in sanitary cleaners.
  • their storage stability is not sufficient.
  • DE-OS 35 42 970 describes a sanitary cleaning agent which contains alkyl ether sulfates, amphoteric surfactants or mixtures of nonionic surfactants with oxyethylated amines as thickeners.
  • alkyl ether sulfates containing alkyl ether sulfates, amphoteric surfactants or mixtures of nonionic surfactants with oxyethylated amines as thickeners.
  • a sanitary cleaning agent which consists of 2 to 40 wt .-% acid, 2 to 10 wt .-% C ⁇ o-C 18 fatty alcohol ethoxylate with 8 to 14 EO units and 2 to 10 wt .-% thickener, in which a C ⁇ o -CC 8 fatty alcohol ethoxylate with 1 to 7 EO units is used and the free fatty alcohol content is below 5%.
  • the examples in this document show that the viscosity decreases sharply when higher fatty alcohol contents are used. It is therefore necessary to use the starting products in high purity, which increases the costs of these products.
  • the object of the present invention is to provide aqueous cleaning agents which do not have the disadvantages arising from the known products over a long storage period and which can be prepared from raw materials of conventional technical quality and purity.
  • the present invention relates to aqueous cleaning agents which contain a surfactant mixture of nonionic surfactants from a) Ci 2 -C 22 alcohol alkoxylates with a degree of alkoxylation between 6 and 15, b) C 2 -C 22 alcohol alkoxylates with a degree of alkoxylation between 2 and 5 and c ) C ⁇ o-C 15 oxo alcohol alkoxylates with a degree of alkoxylation between 5 and 15, and
  • the surfactant mixture of the non-ionic surfactants a, b, and c namely fatty alcohol alkoxylates with different degrees of alkoxylation and oxo alcohol alkoxylates, has a thickening effect in cleaning agents.
  • Detergents can be obtained, the viscosity of which by dilution z. B. can be adjusted with water over a wide range customary in cleaning agents and which is stable over a long period of time even at the different pH values of these agents.
  • the aqueous cleaning agents according to the invention preferably have a viscosity at 20 ° C.
  • the viscosity can also be chosen higher up to a gel-like consistency.
  • the C 2 -C 2 alcohol alkoxylates which are used as components a) and b) in the inventive composition are nonionic surfactants of the formula I.
  • R 1 represents a saturated or unsaturated C 12 -C 22 alkyl group
  • R 2 represents hydrogen and / or a methyl group and for component a) m for numbers from 6 to 15 and for component b) m for numbers of 2 to 5.
  • the compounds can be obtained by alkoxylation of -C 2 -C 22 alcohols.
  • Suitable C 2 -C 22 alcohols are, for example, the native fatty alcohols based on plants such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behen alcohol, oleyl alcohol, elaidyl alcohol, ricinol alcohol, linoleyl alcohol, linolenyl alcohol and their technical mixtures, such as coconut oil alcohol - And palm kernel fatty alcohol or peanut fatty alcohol.
  • mixed alkoxylates ie that m is greater than 1 and R 2 is hydrogen and methyl, up to 4 propylene oxide units, preferably 2 to 4 propylene oxide units, are generally present.
  • C 2 -C 8 - fatty alcohol ethoxylates are particularly preferably used.
  • C ⁇ o-C ⁇ 5 -oxoalcohol alkoxylates ie alkoxylates of branched C ⁇ 0 -C 15 -oxoalcohols, are also known compounds which can be obtained in a known manner by alkoxylation of oxo alcohols.
  • the oxo alcohols used are compounds made from petrochemical raw materials, e.g. B. can be obtained by Roeln's oxosynthesis.
  • C 3 -C 4 are particularly preferred as oxo alcohol alkoxylates. 5 -Oxo alcohol ethoxylates used.
  • each of the three surfactants a, b and c can be present in an amount of 10 to 80% by weight, preferably 15 to 50% by weight, based on the surfactant mixture. lie.
  • the content of this surfactant combination in the finished cleaner is preferably between 2 and 30% by weight, preferably between 5 and 20% by weight, based on the finished cleaning agent.
  • the acidic cleaning agents preferred according to the invention contain acid as a further constituent. All non-corrosive acids are suitable. Citric acid, glycolic acid, acetic acid, formic acid, lactic acid, dicarboxylic acids such as e.g. Succinic acid, oxalic acid, adipic acid, phosphoric acid, amidosulfonic acid or mixtures of the acids mentioned.
  • the acids are usually present in an amount between 2 and 40% by weight. The amount of acid used depends on the type of acid and the desired pH, which is preferably below 3 and in particular between 0 and 2.
  • Cleaning agents according to the invention with an alkaline pH contain, in addition to the surfactants, alkaline salts, such as phosphates, in amounts of preferably up to 10% by weight, in particular 2 to 5% by weight, or free alkalis, such as NH 3 , alkanolamines, KOH or NaOH, in amounts preferably up to 8% by weight, in particular between 0.1 and 2% by weight. Mixtures of several alkalizing agents can of course also be present. The pH of these agents is preferably above 9, in particular between 10 and 14.
  • the agent according to the invention may further contain anionic surfactants as cleaning-active constituents.
  • Suitable anionic surfactants are, for example C 8 -C 18 fate -Alkylsul-, C 8 -C 8 alkyl ether sulfates, C 8 8 -C ⁇ alkanesulfonates, C 8 -C 18 - ⁇ -olefinsulfonates, sulfonated C 8 fatty acid -C ⁇ 8-C 1 -C 4 alkyl esters, C 6 -C 18 alkylbenzenesulfonates, sulfo ⁇ gemsteinsauremono- and -di-C 8 -C 12 alkyl esters, C 8 -C ⁇ 8 alkyl polyglycol ether carboxylates, C 8 -C 18 -N-acyltauhde , C 8 -C 18 -N-sarcosinates and C 8 -C 8 -alkyl isethionates
  • the anionic surfactants can be present in amounts of up to 10% by weight, preferably 0.1 to 2.0% by weight, based on the total agent.
  • the cleaning agent according to the invention can contain further active substances and auxiliaries customary in such agents, provided that they do not impair the properties of the agents according to the invention, for example dyes in an amount of up to 1% by weight, fragrances in an amount of to 2 wt .-% and corrosion inhibitors in an amount up to 5 wt .-%, each based on the Amount of finished detergent.
  • dyes in an amount of up to 1% by weight
  • fragrances in an amount of to 2 wt .-%
  • corrosion inhibitors in an amount up to 5 wt .-%, each based on the Amount of finished detergent.
  • Solvents such as ethanol, isopropanol or glycol ether in an amount of 1 to 20% by weight or neutral salts are also suitable as further constituents.
  • the cleaning agents of the following examples were made by simply mixing the components.
  • the viscosity of the agents obtained was measured according to Brookfield with spindle 1 at 20 ° C. and a suitable speed between 10 and 100 revolutions per minute (rpm). Unless otherwise noted, the contents are given in percent by weight.
  • This example gave a viscosity of 160 mPas.
  • This example gave a viscosity of 75 mPas.
  • This example gave a viscosity of 320 mPas.
  • the viscosity was 105 mPas.
  • the pH was 6.5.
  • the viscosity was 135 mPas. Beisoiel 7. Alkaline cleaner
  • the viscosity was 100 mPas.
  • the viscosity was 700 mPas.
  • the pH was 12.0.
  • the examples show that the surfactant combination used according to the invention has a thickening effect on the cleaning agent. Only compounds that simultaneously contribute to the cleaning performance of the agents are used as thickeners.

Abstract

Claimed is an aqueous cleaning agent containing a surfactant mixture of nonionic surfactants which consists of: a) C12-C22 alcohol alkoxylates with a degree of alkoxylation between 6 and 15; b) C12-C22 alcohol alkoxylates with a degree of alkoxylation between 2 and 5; and c) C10-C15 oxoalcohol alkoxylates with a degree of alkoxylation between 5 and 15. The viscosity of this cleaning agent can be adjusted over a wide range by dilution, for example with water, and is stable even at low pH values.

Description

Wäßriges Reinigungsmittel Aqueous detergent
Die vorliegende Erfindung betrifft ein wäßriges Reinigungsmittel, das nichtionische Tenside enthält und zur Reinigung im Sanitärbereich geeignet ist.The present invention relates to an aqueous cleaning agent which contains nonionic surfactants and is suitable for cleaning in the sanitary field.
Bei vielen Reinigungsmitteln, wie z.B. den Sanitär-Reinigem, ist es erwünscht, daß diese viskos sind, um eine längere Einwirkzeit auf nicht-waagerechten Oberflächen zu erreichen. Der pH-Wert saurer Reinigungsmittel liegt üblicherweise zwischen 0 und 2. Ein derart niedriger pH-Wert stellt an die Stabilität der Komponenten be¬ sondere Anforderungen. Die zur Erhöhung der Viskosität eingesetzten Ver¬ dickungsmittel, z.B. Amine oder Amindehvate, liefern häufig Produkte, die nicht über einen ausreichenden Zeitraum viskositätsstabil sind. Hinzukommt, daß bei diesen Verdickern die Viskosität der Produkte stark in Abhängigkeit von der Lager¬ temperatur schwanken kann. Andere typische Verdickungsmittel wie Guar-Mehl, Xanthan Gum oder Cellulose-Derivate sind in sauren Medien nicht stabil und verlieren schnell ihre Verdicker-Eigenschaften. Ein weiterer Nachteil dieser Verbindungen ist, daß sie keinen Beitrag zur Reinigungsleistung der Reinigungsmittel leisten.With many cleaning agents, e.g. sanitary cleaners, it is desirable that these are viscous in order to achieve a longer exposure time on non-horizontal surfaces. The pH of acidic cleaning agents is usually between 0 and 2. Such a low pH makes special demands on the stability of the components. The thickeners used to increase the viscosity, e.g. Amines or amine dehvates often supply products that are not stable in viscosity for a sufficient period of time. In addition, in the case of these thickeners, the viscosity of the products can vary greatly as a function of the storage temperature. Other typical thickeners such as guar flour, xanthan gum or cellulose derivatives are not stable in acidic media and quickly lose their thickening properties. Another disadvantage of these compounds is that they make no contribution to the cleaning performance of the cleaning agents.
Die in neutralen und alkalischen Reinigungsmitteln eingesetzten Verdickungsmit¬ teln führen dazu, daß die Reinigungsmittel sich bei einem gegebenenfalls vorge¬ sehenen Verdünnungsvorgang nur schwer in Wasser auflösen. Neben den vorge¬ nannten Verdickungsmitteln ist dieser Nachteil auch bei synthetischen Polymeren zu beobachten.The thickeners used in neutral and alkaline detergents mean that the detergents dissolve only with difficulty in water in the event of a dilution process which may be provided. In addition to the aforementioned thickeners, this disadvantage can also be observed with synthetic polymers.
In der DE-OS 23 59 095 werden z.B. nichtionische Tenside, insbesondere tertiäre Amine, als Verdickungsmittel in Sanitär-Reinigem verwendet. Ihre Lagerstabilität ist jedoch nicht ausreichend.In DE-OS 23 59 095 e.g. nonionic surfactants, especially tertiary amines, used as thickeners in sanitary cleaners. However, their storage stability is not sufficient.
In der DE-OS 35 42 970 wird ein Sanitär-Reinigungsmittel beschrieben, das als Verdickungsmittel Alkylethersulfate, amphotere Tenside bzw. Mischungen aus nichtionischen Tensiden mit oxethylierten Aminen enthält. In dieser Schrift wird ausgeführt, daß beim Einsatz von nichtionischen Tensiden allein unerwünscht hohe Konzentrationen an Tensiden einzusetzen sind, um eine ausreichende Ver¬ dickung zu erreichen.DE-OS 35 42 970 describes a sanitary cleaning agent which contains alkyl ether sulfates, amphoteric surfactants or mixtures of nonionic surfactants with oxyethylated amines as thickeners. In this writing stated that when using nonionic surfactants alone undesirably high concentrations of surfactants are to be used in order to achieve sufficient thickening.
Aus der EP-A1-0 475 002 ist ein Sanitär-Reinigungsmittel bekannt, das aus 2 bis 40 Gew.-% Säure, 2 bis 10 Gew.-% Cιo-C18-Fettalkoholethoxylat mit 8 bis 14 EO- Einheiten und 2 bis 10 Gew.-% Verdickungsmittel besteht, worin als Verdickungsmittel ein Cιo-Cι8-Fettalkoholethoxylat mit 1 bis 7 EO-Einheiten verwendet wird und der freie Fettalkoholgehalt unter 5 % beträgt. Den Beispielen dieser Druckschrift kann entnommen werden, daß beim Einsatz von höheren Fettalkoholgehalten die Viskosität stark abnimmt. Es ist also erforderlich, die Ausgangsprodukte in hoher Reinheit einzusetzen, was die Kosten dieser Produkte erhöht.From EP-A1-0 475 002 a sanitary cleaning agent is known which consists of 2 to 40 wt .-% acid, 2 to 10 wt .-% Cιo-C 18 fatty alcohol ethoxylate with 8 to 14 EO units and 2 to 10 wt .-% thickener, in which a Cιo -CC 8 fatty alcohol ethoxylate with 1 to 7 EO units is used and the free fatty alcohol content is below 5%. The examples in this document show that the viscosity decreases sharply when higher fatty alcohol contents are used. It is therefore necessary to use the starting products in high purity, which increases the costs of these products.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, wäßrige Reinigungsmittel zur Verfügung zu stellen, die über einen langen Lagerzeitraum die aus den be¬ kannten Produkten auftretenden Nachteile nicht aufweisen und aus Rohstoffen üblicher technischer Qualität und Reinheit hergestellt werden können.The object of the present invention is to provide aqueous cleaning agents which do not have the disadvantages arising from the known products over a long storage period and which can be prepared from raw materials of conventional technical quality and purity.
Gegenstand der vorliegenden Erfindung sind wäßrige Reinigungsmittel, die ein Tensidgemisch aus nichtionischen Tensiden aus a) Ci2-C22-Alkoholalkoxylaten mit einem Alkoxylierungsgrad zwischen 6 und 15, b) Cι2-C22-Alkoholalkoxylaten mit einem Alkoxylierungsgrad zwischen 2 und 5 und c) Cιo-C15-Oxoalkoholalkoxylaten mit einem Alkoxylierungsgrad zwischen 5 und 15, undThe present invention relates to aqueous cleaning agents which contain a surfactant mixture of nonionic surfactants from a) Ci 2 -C 22 alcohol alkoxylates with a degree of alkoxylation between 6 and 15, b) C 2 -C 22 alcohol alkoxylates with a degree of alkoxylation between 2 and 5 and c ) Cιo-C 15 oxo alcohol alkoxylates with a degree of alkoxylation between 5 and 15, and
Säure enthalten.Contain acid.
Überraschenderweise wurde festgestellt, daß das Tensidgemisch aus den nicht¬ ionischen Tensiden a, b, und c, nämlich Fettalkoholalkoxylate mit unterschiedli¬ chen Alkoxylierungsgraden und Oxoalkoholalkoxylate, eine verdickende Wirkung in Reinigungsmitteln hat. Es können Reinigungsmittel erhalten werden, deren Viskosität durch Verdünnung z. B. mit Wasser über einen weiten, bei Reinigungs¬ mitteln üblichen Bereich eingestellt werden kann und die auch bei den verschiedenen pH-Werten dieser Mittel über einen langen Zeitraum stabil ist. Die erfindungsgemäßen wäßrigen Reinigungsmittel weisen vorzugsweise eine Vis¬ kosität bei 20°C von 15 s bis 90 s, gemessen im Fordbecher mit einer Öffnung von 4 mm, auf, was etwa einer Brookfield-Viskosität von 20 mPas bis 800 mPas, ge¬ messen mit Spindel 1 , entspricht. Gewünschtenfalls kann die Viskosität aber auch höher gewählt werden bis hin zu einer gelförmigen Konsistenz.Surprisingly, it was found that the surfactant mixture of the non-ionic surfactants a, b, and c, namely fatty alcohol alkoxylates with different degrees of alkoxylation and oxo alcohol alkoxylates, has a thickening effect in cleaning agents. Detergents can be obtained, the viscosity of which by dilution z. B. can be adjusted with water over a wide range customary in cleaning agents and which is stable over a long period of time even at the different pH values of these agents. The aqueous cleaning agents according to the invention preferably have a viscosity at 20 ° C. of 15 s to 90 s, measured in a Ford cup with an opening of 4 mm, which corresponds to a Brookfield viscosity of 20 mPas to 800 mPas Spindle 1 corresponds. If desired, the viscosity can also be chosen higher up to a gel-like consistency.
Die Cι2-C22 -Alkoholalkoxylate, die als Komponenten a) und b) im erfindungsge¬ mäßen Mittel eingesetzt werden sind nichtionische Tenside der Formel IThe C 2 -C 2 alcohol alkoxylates which are used as components a) and b) in the inventive composition are nonionic surfactants of the formula I.
R2 R 2
I R10-(CHCH20)m-H (V),IR 1 0- (CHCH 2 0) m -H (V),
worin R1 für eine gesättigte oder ungesättigte C12-C22-Alkylgruppe, R2 für Wasser¬ stoff und/oder eine Methylgruppe stehen und für Komponente a) m für Zahlen von 6 bis 15 und für Komponente b) m für Zahlen von 2 bis 5 steht. Die Verbindungen können durch Alkoxylierung von Cι2-C22 -Alkoholen erhalten werden. Geeignete Cι2-C22-Alkohole sind beispielsweise die nativen Fettalkohole auf pflanzlicher Basis wie z.B. Laurylalkohol, Myristylalkohol, Cetylalkohol, Stearylalkohol, Behen- alkohol, Oleylalkohol, Elaidylalkohol, Ricinolalkohol, Linoleylalkohol, Linolenylalko- hol sowie deren technischen Gemische, wie Kokosfettalkohol, Palm- und Palm¬ kernfettalkohol oder auch Erdnussfettalkohol. Für den Fall, daß gemischte Alkoxylate eingesetzt werden, d. h. daß m größer als 1 ist und R2 für Wasserstoff und Methyl steht, sind in der Regel bis zu 4 Propylenoxideinheiten, vorzugsweise 2 bis 4 Propylenoxideinheiten enthalten. Besonders bevorzugt werden Cι2-Cι8- Fettalkoholethoxylate eingesetzt.wherein R 1 represents a saturated or unsaturated C 12 -C 22 alkyl group, R 2 represents hydrogen and / or a methyl group and for component a) m for numbers from 6 to 15 and for component b) m for numbers of 2 to 5. The compounds can be obtained by alkoxylation of -C 2 -C 22 alcohols. Suitable C 2 -C 22 alcohols are, for example, the native fatty alcohols based on plants such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behen alcohol, oleyl alcohol, elaidyl alcohol, ricinol alcohol, linoleyl alcohol, linolenyl alcohol and their technical mixtures, such as coconut oil alcohol - And palm kernel fatty alcohol or peanut fatty alcohol. In the event that mixed alkoxylates are used, ie that m is greater than 1 and R 2 is hydrogen and methyl, up to 4 propylene oxide units, preferably 2 to 4 propylene oxide units, are generally present. C 2 -C 8 - fatty alcohol ethoxylates are particularly preferably used.
Cιo-Cι5-Oxoalkoholalkoxylate, d.h. Alkoxylate von verzweigten Cι0-C15-Oxoal- koholen, sind ebenfalls bekannte Verbindungen, die in bekannter Weise durch Alkoxylierung von Oxoalkoholen erhalten werden können. Die eingesetzten Oxoalkohole sind Verbindungen, die aus petrochem ischen Rohstoffen, z. B. durch die Roeln'schen Oxosynthese, erhalten werden können. Als Oxoalkoholalkoxylate werden besonders bevorzugt Cι3-C.5-Oxoalkoholethoxylate eingesetzt.Cιo-Cι 5 -oxoalcohol alkoxylates, ie alkoxylates of branched Cι 0 -C 15 -oxoalcohols, are also known compounds which can be obtained in a known manner by alkoxylation of oxo alcohols. The oxo alcohols used are compounds made from petrochemical raw materials, e.g. B. can be obtained by Roeln's oxosynthesis. C 3 -C 4 are particularly preferred as oxo alcohol alkoxylates. 5 -Oxo alcohol ethoxylates used.
Im Tensidgemisch kann jedes der drei Tenside a, b und c in einer Menge von 10 bis 80 Gew.-%, bevorzugt 15 bis 50 Gew.-%, bezogen auf das Tensidgemisch, vor- liegen. Im fertigen Reiniger liegt der Gehalt dieser Tensidkombination bevorzugt zwischen 2 und 30 Gew.-%, bevorzugt zwischen 5 und 20 Gew.-%, bezogen auf das fertige Reinigungsmittel.In the surfactant mixture, each of the three surfactants a, b and c can be present in an amount of 10 to 80% by weight, preferably 15 to 50% by weight, based on the surfactant mixture. lie. The content of this surfactant combination in the finished cleaner is preferably between 2 and 30% by weight, preferably between 5 and 20% by weight, based on the finished cleaning agent.
Die erfindungsgemäß bevorzugten sauren Reinigungsmittel enthalten als weiteren Bestandteil Säure. Es eignen sich alle nicht-korrosiven Säuren. Bevorzugt werden Citronensäure, Glykolsäure, Essigsäure, Ameisensäure, Milchsäure, Dicarbonsau¬ ren wie z.B. Bernsteinsäure, Oxalsäure, Adipinsäure, Phosphorsäure, Amidosul- fonsäure oder Mischungen der genannten Säuren eingesetzt. Die Säuren sind üblicherweise in einer Menge zwischen 2 und 40 Gew.-% enthalten. Die Menge der eingesetzten Säure hängt von der Art der Säure und dem gewünschten pH-Wert ab, der vorzugsweise unterhalb von 3 und insbesondere zwischen 0 und 2 liegt.The acidic cleaning agents preferred according to the invention contain acid as a further constituent. All non-corrosive acids are suitable. Citric acid, glycolic acid, acetic acid, formic acid, lactic acid, dicarboxylic acids such as e.g. Succinic acid, oxalic acid, adipic acid, phosphoric acid, amidosulfonic acid or mixtures of the acids mentioned. The acids are usually present in an amount between 2 and 40% by weight. The amount of acid used depends on the type of acid and the desired pH, which is preferably below 3 and in particular between 0 and 2.
Erfindungsgemäße Reinigungsmittel mit alkalischem pH-Wert enthalten neben den Tensiden alkalisch reagierende Salze, wie beispielsweise Phosphate, in Mengen vorzugsweise bis 10 Gew.-%, insbesondere 2 bis 5 Gew.-%, oder freie Alkalien, wie beispielsweise NH3, Alkanolamine, KOH oder NaOH, in Mengen vorzugsweise bis zu 8 Gew.-%, insbesondere zwischen 0,1 und 2 Gew.-%. Selbstverständlich können auch Gemische mehrerer Alkalisierungsmittel enthalten sein. Der pH-Wert dieser Mittel liegt vorzugsweise über 9, insbesondere zwischen 10 und 14.Cleaning agents according to the invention with an alkaline pH contain, in addition to the surfactants, alkaline salts, such as phosphates, in amounts of preferably up to 10% by weight, in particular 2 to 5% by weight, or free alkalis, such as NH 3 , alkanolamines, KOH or NaOH, in amounts preferably up to 8% by weight, in particular between 0.1 and 2% by weight. Mixtures of several alkalizing agents can of course also be present. The pH of these agents is preferably above 9, in particular between 10 and 14.
Als reinigungsaktive Bestandteile kann des erfindungsgemäße Mittel weiterhin anionische Tenside enthalten. Geeignete Aniontenside sind z.B. C8-C18-Alkylsul- fate, C8-Ci8-Alkylethersulfate, C8-Cι8-Alkansulfonate, C8-C18-α-Olefinsulfonate, sulfonierte C8-Cι8-Fettsäure-C1-C4-Alkylester, C6-C18-Alkylbenzolsulfonate, Sulfo¬ bemsteinsauremono- und -di-C8-C12-Alkylester, C8-Cι8-Alkylpolyglykolethercarb- oxylate, C8-C18-N-Acyltauhde, C8-C18-N-Sarcosinate und C8-Cι8-Alkylisethionate.The agent according to the invention may further contain anionic surfactants as cleaning-active constituents. Suitable anionic surfactants are, for example C 8 -C 18 fate -Alkylsul-, C 8 -C 8 alkyl ether sulfates, C 8 8 -Cι alkanesulfonates, C 8 -C 18 -α-olefinsulfonates, sulfonated C 8 fatty acid -Cι 8-C 1 -C 4 alkyl esters, C 6 -C 18 alkylbenzenesulfonates, sulfo¬ gemsteinsauremono- and -di-C 8 -C 12 alkyl esters, C 8 -Cι 8 alkyl polyglycol ether carboxylates, C 8 -C 18 -N-acyltauhde , C 8 -C 18 -N-sarcosinates and C 8 -C 8 -alkyl isethionates.
Die Aniontenside können in Mengen bis 10 Gew.-%, vorzugsweise 0,1 bis 2,0 Gew.-%, bezogen auf das gesamte Mittel, enthalten sein.The anionic surfactants can be present in amounts of up to 10% by weight, preferably 0.1 to 2.0% by weight, based on the total agent.
Als fakultative Bestandteile kann das erfindungsgemäße Reinigungsmittel weitere in derartigen Mitteln übliche Wirk- und Hilfsstoffe enthalten, sofem sie die Eigen¬ schaften der erfindungsgemäßen Mittel nicht beeinträchtigen, beispielsweise Farb¬ stoffe in einer Menge bis zu 1 Gew.-%, Duftstoffe in einer Menge bis zu 2 Gew.-% und Korrosionsinhibitoren in einer Menge bis zu 5 Gew.-%, jeweils bezogen auf die Menge des fertigen Reinigungsmittels. Als weitere Bestandteile kommen auch Lösungsmittel wie Ethanol, Isopropanol oder Glykolether in einer Menge von 1 bis 20 Gew.-% oder Neutralsalze in Betracht.As optional components, the cleaning agent according to the invention can contain further active substances and auxiliaries customary in such agents, provided that they do not impair the properties of the agents according to the invention, for example dyes in an amount of up to 1% by weight, fragrances in an amount of to 2 wt .-% and corrosion inhibitors in an amount up to 5 wt .-%, each based on the Amount of finished detergent. Solvents such as ethanol, isopropanol or glycol ether in an amount of 1 to 20% by weight or neutral salts are also suitable as further constituents.
Die folgenden Beispiele sollen die Erfindung näher erläutern, ohne diese darauf zu beschränken. The following examples are intended to explain the invention in more detail without restricting it thereto.
BeispieleExamples
Die Reinigungsmittel der folgenden Beispiele wurden durch einfaches Vermischen der Komponenten hergestellt. Die Viskosität der erhaltenen Mittel wurde nach Brookfield mit Spindel 1 bei 20 °C und geeigneter Drehzahl zwischen 10 und 100 Umdrehungen pro Minute (UpM) gemessen. Soweit nichts anderes vermerkt, sind die Gehalte in Gewichtsprozent angegeben.The cleaning agents of the following examples were made by simply mixing the components. The viscosity of the agents obtained was measured according to Brookfield with spindle 1 at 20 ° C. and a suitable speed between 10 and 100 revolutions per minute (rpm). Unless otherwise noted, the contents are given in percent by weight.
Beispiel 1. saurer ReinigerExample 1. Acidic cleaner
Glykolsäure 8 %Glycolic acid 8%
C.6-C18-Fettalkohol + 10 EO 4 %C.6-C 18 fatty alcohol + 10 EO 4%
Cι2-C15-Oxoalkohol + 10 EO 5,5 %Cι 2 -C 15 oxo alcohol + 10 EO 5.5%
C12-Ci4-Fettalkohol + 4 EO 4 %C 12 -Ci4 fatty alcohol + 4 EO 4%
Wasser ad 100 %Water ad 100%
Dieses Beispiel ergab eine Viskosität von 160 mPas.This example gave a viscosity of 160 mPas.
Beispiel 2. saurer ReinigerExample 2. Acidic cleaner
Citronensäure 4,5 %Citric acid 4.5%
Ci6-C18-Fettalkohol + 10 EO 3,5 %Ci6-C 18 fatty alcohol + 10 EO 3.5%
Cι2-C15-Oxoalkohol + 10 EO 4 %Cι 2 -C 15 oxo alcohol + 10 EO 4%
C12-Cι4-Fettalkohol + 4 EO 4 %C 12 -Cι 4 fatty alcohol + 4 EO 4%
Parfüm 0,4 %Perfume 0.4%
Farbe 0,002 %Color 0.002%
Wasser ad 100 %Water ad 100%
Dieses Beispiel ergab eine Viskosität von 75 mPas.This example gave a viscosity of 75 mPas.
Beispiel 3. saurer ReinigerExample 3. Acidic cleaner
Citronensäure 4,5 %Citric acid 4.5%
Ci6-C18-Fettalkohol + 10 EO 3,5 %Ci6-C 18 fatty alcohol + 10 EO 3.5%
Cι2-Ci5-Oxoalkohol + 10 EO 3,5 %Cι 2 -Ci 5 -oxoalcohol + 10 EO 3.5%
Cι2-C14-Fettalkohol + 4 EO 4 %Cι 2 -C 14 fatty alcohol + 4 EO 4%
Parfüm 0,4 %Perfume 0.4%
Farbe 0,002 %Color 0.002%
Wasser ad 100 % Dieses Beispiel ergab eine Viskosität von 95 mPas.Water ad 100% This example gave a viscosity of 95 mPas.
Beispiel 4. saurer ReinigerExample 4. Acidic cleaner
Phosphorsäure 30 %Phosphoric acid 30%
Eisen(ll)sulfat 2 %Iron (ll) sulfate 2%
Ciβ-Ciβ-Fettalkohol + 10 EO 3 %Ciβ-Ciβ-fatty alcohol + 10 EO 3%
Ci2-Ci5-Oxoalkohol + 10 EO 1 %Ci2-Ci5-oxo alcohol + 10 EO 1%
Ci2Cι4-Fettalkohol + 4 EO 5,25 %Ci2Cι 4 fatty alcohol + 4 EO 5.25%
Parfüm 0,1 %Perfume 0.1%
Farbe 0,002 %Color 0.002%
Wasser ad 100 %Water ad 100%
Dieses Beispiel ergab eine Viskosität von 320 mPas.This example gave a viscosity of 320 mPas.
Beispiel 5. neutraler ReinigerExample 5. Neutral cleaner
Ci6-C18-Fettalkohol + 10 EO 3,5 %Ci6-C 18 fatty alcohol + 10 EO 3.5%
Cι2-C15-Oxoalkohol + 8 EO 3,5 %Cι 2 -C 15 oxo alcohol + 8 EO 3.5%
C12-Cι4-Fettalkohol + 4 EO 4,5 %C 12 -Cι 4 fatty alcohol + 4 EO 4.5%
Wasser ad 100 %Water ad 100%
Die Viskosität lag bei 105 mPas. Der pH-Wert betrug 6,5.The viscosity was 105 mPas. The pH was 6.5.
Beispiel 6. alkalischer ReinigerExample 6. Alkaline cleaner
C16-Cι8-Fettalkohol + 10 EO 4,0 %C 16 -Cι 8 fatty alcohol + 10 EO 4.0%
Ci2-Cι5-Oxoalkohol + 8 EO 4,0 %Ci2-Cι 5 -oxo alcohol + 8 EO 4.0%
C12-C14-Fettalkohol + 4 EO 3,0 %C 12 -C 14 fatty alcohol + 4 EO 3.0%
Tetrakaliumpyrophosphat 5,0 %Tetrapotassium pyrophosphate 5.0%
Wasser ad 100 %Water ad 100%
Die Viskosität betrug 135 mPas. Beisoiel 7. alkalischer ReinigerThe viscosity was 135 mPas. Beisoiel 7. Alkaline cleaner
Ci6-Cι8-Fettalkohol + 10 EO 3,5 %Ci 6 -Cι 8 fatty alcohol + 10 EO 3.5%
Ci2-Ci5-Oxoalkohol + 8 EO 3,5 %Ci 2 -Ci5 oxo alcohol + 8 EO 3.5%
Cι2-C14-Fettalkohol + 4 EO 4,5 %Cι 2 -C 14 fatty alcohol + 4 EO 4.5%
Ammoniak 25 %ig 1 ,5 %Ammonia 25% 1.5%
Wasser ad 100 %Water ad 100%
Die Viskosität betrug 100 mPas.The viscosity was 100 mPas.
Beispiel 8. stark alkalischer ReinigerExample 8. Strongly alkaline cleaner
Ci6-Cι8-Fettalkohol + 10 EO 3,0 %Ci6-Cι 8 fatty alcohol + 10 EO 3.0%
Ci2-Ci5-Oxoalkohol + 8 EO 6,0 %Ci2-Ci5-oxo alcohol + 8 EO 6.0%
Ci2-Ci4-Fettalkohol + 4 EO 6,0 %Ci2-Ci4 fatty alcohol + 4 EO 6.0%
Ammoniak 25 %ig 0,5 %Ammonia 25% 0.5%
Kalilauge 45 %ig 0,2 %Potash lye 45% 0.2%
Wasser ad 100 %Water ad 100%
Die Viskosität betrug 700 mPas. Der pH-Wert lag bei 12,0.The viscosity was 700 mPas. The pH was 12.0.
Aus den Beispielen ist ersichtlich, daß die erfindungsgemäß eingesetzte Tensid- kombination eine verdickende Wirkung auf das Reingungsmittel hat. Dabei werden als Verdicker nur Verbindungen verwendet, die gleichzeitig zur Reinigungsleistung der Mittel beitragen. The examples show that the surfactant combination used according to the invention has a thickening effect on the cleaning agent. Only compounds that simultaneously contribute to the cleaning performance of the agents are used as thickeners.

Claims

Patentansprüche claims
1. Wäßriges Reinigungsmittel enthaltend ein Tensidgemisch aus nichtioni¬ schen Tensiden, bestehend aus a) C12-C22-Alkoholalkoxylaten mit einem Alkoxylierungsgrad zwischen 6 und 15, b) Ci2-C22-Alkoholalkoxylaten mit einem Alkoxylierungsgrad zwischen 2 und 5 und c) C10-Ci5-Oxoalkohol-Alkoxylaten mit einem Alkoxylierungsgrad zwischen 5 und 15.1. Aqueous cleaning agent containing a surfactant mixture of nonionic surfactants, consisting of a) C 12 -C 22 alcohol alkoxylates with a degree of alkoxylation between 6 and 15, b) Ci 2 -C 22 alcohol alkoxylates with a degree of alkoxylation between 2 and 5 and c ) C 10 -Ci 5 oxo alcohol alkoxylates with a degree of alkoxylation between 5 and 15.
2. Reinigungsmittel nach Anspruch 1 , dadurch gekennzeichnet, daß das Ten¬ sidgemisch die Tenside a, b und c jeweils in einer Menge von 10 bis 80 Gew.-%, bevorzugt 15 bis 50 Gew.-%, bezogen auf das Tensidgemisch, enthält.2. Cleaning agent according to claim 1, characterized in that the Ten¬ sid mixture contains the surfactants a, b and c in an amount of 10 to 80 wt .-%, preferably 15 to 50 wt .-%, based on the surfactant mixture .
3. Reinigungsmittel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Tenside a, b und c zusammen in einer Menge von 2 bis 30 Gew.-%, bevor¬ zugt 5 bis 20 Gew.-%, bezogen auf das fertige Mittel, enthalten sind.3. Cleaning agent according to claim 1 or 2, characterized in that the surfactants a, b and c together in an amount of 2 to 30 wt .-%, preferably 5 to 20 wt .-%, based on the finished agent, are included.
4. Reinigungsmittel nach einem der Ansprüche 1 bis 3, dadurch gekennzeich¬ net, daß das Mittel eine Viskosität von 20 bis 800 mPas, gemessen nach Brookfield bei 20 CC unter Verwendung von Spindel 1 , aufweist.4. Cleaning agent according to one of claims 1 to 3, characterized gekennzeich¬ net that the agent has a viscosity of 20 to 800 mPas, measured according to Brookfield at 20 C C using spindle 1.
5. Saures Reinigungsmittel nach einem der Ansprüche 1 bis 4, dadurch ge¬ kennzeichnet, daß es als Säure Citronensäure, Glykolsäure, Essigsäure, Ameisensäure, Milchsäure, Dicarbonsäure, Phosphorsäure, Amidosulfon- säure oder Mischungen der vorgenannten Säuren enthält.5. Acidic cleaning agent according to one of claims 1 to 4, characterized ge indicates that it contains citric acid, glycolic acid, acetic acid, formic acid, lactic acid, dicarboxylic acid, phosphoric acid, amidosulfonic acid or mixtures of the aforementioned acids.
6. Alkalisches Reinigungsmittel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß es als alkalisch wirkenden Bestandteil Tetrakaliumpy- rophosphat, Pentanatriumtriphosphat, Kaliumhydroxyd, Natriumhydroxyd, Ammoniak, Alkanolamin oder ein Gemisch von Substanzen aus dieser Gruppe enthält. 6. Alkaline cleaning agent according to one of claims 1 to 4, characterized in that it contains as an alkaline component tetrapotassium pyrophosphate, pentasodium triphosphate, potassium hydroxide, sodium hydroxide, ammonia, alkanolamine or a mixture of substances from this group.
EP96920820A 1995-06-26 1996-06-17 Aqueous cleaning agent Revoked EP0848746B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19523117 1995-06-26
DE19523117A DE19523117A1 (en) 1995-06-26 1995-06-26 Aqueous acidic detergent
PCT/EP1996/002595 WO1997001622A1 (en) 1995-06-26 1996-06-17 Aqueous cleaning agent

Publications (2)

Publication Number Publication Date
EP0848746A1 true EP0848746A1 (en) 1998-06-24
EP0848746B1 EP0848746B1 (en) 1999-12-01

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EP (1) EP0848746B1 (en)
AT (1) ATE187198T1 (en)
DE (2) DE19523117A1 (en)
DK (1) DK0848746T3 (en)
ES (1) ES2141513T3 (en)
GR (1) GR3032067T3 (en)
PT (1) PT848746E (en)
WO (1) WO1997001622A1 (en)

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DE19751859A1 (en) * 1997-11-22 1999-07-29 Henkel Ecolab Gmbh & Co Ohg Means for cleaning hard surfaces
EP1149945A1 (en) * 2000-04-29 2001-10-31 Ciba Spezialitätenchemie Pfersee GmbH Composition for the pretreatment of fibrous materials
DE10304929A1 (en) * 2003-02-06 2004-08-26 Glienke, Peter O. Lime-scale removing and cleaning composition, e.g. for steam irons or sanitary applications, comprising aqueous glycolic acid solution containing sulfated or hydrogenated, ethoxylated castor oil
DE10311429A1 (en) * 2003-03-13 2004-09-23 Thomas Hartl Combined washing-up agent for crockery and cutlery comprises a combination of a de-fatting and a de-scaling agent stored in a container
DE102004020017A1 (en) * 2004-04-21 2005-11-17 Henkel Kgaa Strongly acidic sanitary cleaner with stabilized viscosity and phase behavior
DE102005034752A1 (en) * 2005-07-21 2007-01-25 Henkel Kgaa Cleaning and care products with improved emulsifying ability

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DE2529096B2 (en) * 1975-06-30 1979-05-31 Woellner-Werke, 6700 Ludwigshafen Agent for cold cleaning of solid surfaces contaminated with grease or grease-like soiling
GB2011944B (en) * 1978-01-09 1982-06-09 Unilever Ltd Liquid detergent composition
DE3518672A1 (en) * 1985-05-24 1986-11-27 Basf Ag, 6700 Ludwigshafen LIQUID CLEANING CONCENTRATE FOR STRONG ALKALINE CLEANING FORMULAS
US5008030A (en) * 1989-01-17 1991-04-16 Colgate-Palmolive Co. Acidic disinfectant all-purpose liquid cleaning composition
DE4028138A1 (en) * 1990-09-05 1992-03-12 Huels Chemische Werke Ag VISCOSE ACIDIC DETERGENTS
DE4029777A1 (en) * 1990-09-20 1992-03-26 Henkel Kgaa LIQUID, NON-TENSID COMBINATION WITH IMPROVED CELL TESTABILITY
EP0598973A1 (en) * 1992-11-26 1994-06-01 The Procter & Gamble Company Multi-purpose liquid cleaning composition

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Title
See references of WO9701622A1 *

Also Published As

Publication number Publication date
ES2141513T3 (en) 2000-03-16
WO1997001622A1 (en) 1997-01-16
PT848746E (en) 2000-05-31
ATE187198T1 (en) 1999-12-15
DE59603798D1 (en) 2000-01-05
DE19523117A1 (en) 1997-01-02
EP0848746B1 (en) 1999-12-01
DK0848746T3 (en) 2000-04-17
GR3032067T3 (en) 2000-03-31

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