EP1963474B1 - Odour reduction for agents containing hypochlorite - Google Patents

Odour reduction for agents containing hypochlorite Download PDF

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Publication number
EP1963474B1
EP1963474B1 EP06829482.6A EP06829482A EP1963474B1 EP 1963474 B1 EP1963474 B1 EP 1963474B1 EP 06829482 A EP06829482 A EP 06829482A EP 1963474 B1 EP1963474 B1 EP 1963474B1
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Prior art keywords
diphenylmethane
alkali metal
diphenyl oxide
use according
weight ratio
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EP06829482.6A
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German (de)
French (fr)
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EP1963474A1 (en
Inventor
Carlos Malet
Mercedes Mendoza Cruz
Pilar Ibanez
Miguel Osset
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents
    • C11D3/3956—Liquid compositions
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50—Perfumes

Definitions

  • the present invention relates to the use of certain fragrances in hypochlorite-containing bleaches to avoid the unpleasant odor of such agents on human skin, particularly on the hands which has come in contact with the agent.
  • Efficient cleaning is one of the requirements that influences the acceptance of such agents by the consumer. This requires providing agents with a wide stain removal potential which can remove, for example, oily and greasy soils from fabrics or hard surfaces such as tiles or tiles.
  • hypochlorite bleach containing agents have been developed, among others, in which hypochlorite, as a strong oxidant, contributes to the chemical degradation, destruction and removal of soils.
  • Another advantage of using hypochlorite is that it acts as an effective disinfectant.
  • a disadvantage is felt that after contact with human skin, which inevitably results in the use of such agents with bare hands and otherwise, for example, when using gloves, can not always avoid a sticking to the skin smell, which can not always be removed even after repeated washing with water.
  • EP 0 606 707 describes agents which contain a polymer component together with a hypochlorite compound and lead to a reduction of malodors of the actual agent as well as the surfaces cleaned therewith. This could be due to the high viscosity of these agents, so that compounds responsible for the offensive odor may be trapped in vesicles.
  • EP 0 812 909 A1 describes the use of polycarboxylate polymer in hypochlorite-containing bleaches to avoid unpleasant odors resulting from the contact of such agents with skin surfaces.
  • EP 0 622 451 deals with the task of odor formation during and after applying chlorine-containing agents and suggests to use a perfume.
  • Hypochlorite-containing bleaches containing diphenyloxide and other fragrances are made EP 0 867 503 A2 .
  • the present invention is the use of fragrances to reduce the odor of chlorine bleach on human skin, which has come into contact with said chlorine bleach, the fragrance is selected from the group comprising mixtures of diphenylmethane with diphenyl oxide and mixtures of diphenylmethane with diphenyl oxide and with 2-methyl-naphthyl ether, wherein the weight ratio of diphenylmethane to diphenyl oxide is from 1: 1 to 1:50.
  • the skin is on a human hand.
  • the fragrance preferably has a combination of diphenylmethane and diphenyl oxide in a weight ratio of 1:10 to 1: 5. It furthermore preferably has a combination of diphenylmethane and 2-methylnaphthyl ether in a weight ratio of 50: 1 to 1:10, in particular from 5: 1 to 1: 1. It is also preferred if the fragrance has a combination of diphenyl oxide and 2-methyl-naphthyl ether in a weight ratio of from 250: 1 to 1: 1, in particular from 50: 1 to 5: 1.
  • Said fragrance as such or in the form of a preparation containing it, may be applied after the use of the chlorine-containing agent on the skin areas which have come into contact with said agent.
  • the fragrance is already part of the composition containing the chlorine bleach.
  • the composition is preferably an aqueous liquid which is used undiluted or, if appropriate, after mixing with water on a textile or hard surface and which contains from 0.5% by weight to 10% by weight, in particular from 1% by weight to 6% by weight .-%, of alkali metal hypochlorite, especially sodium hypochlorite contains.
  • a liquid hydrous bleach containing alkali metal hypochlorite and fragrance said fragrance being selected from the group consisting of mixtures of diphenylmethane with diphenyloxide and mixtures of diphenylmethane with diphenyloxide and with 2-methyl-naphthyl ether, wherein the weight ratio of diphenylmethane to diphenyloxide is from 1: 1 to 1:50, is selected, is a further object of the invention.
  • Another object of the invention is a method for bleaching stains on textiles and / or hard surfaces, in which one uses a composition according to the invention.
  • An agent of the invention preferably contains from 0.0005% to 0.005% by weight of diphenylmethane, from 0.005% to 0.025% by weight of diphenyloxide, and / or from 0.0001% to 0.005% by weight of 2 methyl-naphthyl ether.
  • a composition according to the invention which may also be used in the context of the use according to the invention, preferably contains 0.1% by weight to 2% by weight of alkali metal hydroxide and up to 5% by weight of palladium-stable surfactant, in particular betaine and / or alkyl ether sulfate.
  • R 1 is an alkyl or alkenyl group having 6 to 22 carbon atoms or a group R 4 is CO-NH- (CH 2 ) n -
  • R 2 is hydrogen or an alkyl group having 1 to 4 carbon atoms
  • R 3 is hydrogen or an alkyl group with 1 to 4 carbon atoms
  • R 4 is an alkyl or alkenyl group having 6 to 22 carbon atoms
  • m is a number from 1 to 6 and n is a number from 1 to 3.
  • surfactants examples include C 12-18 alkyl dimethyl betaine, commercially available as coconut betaine, and C 10-16 alkyl dimethyl betaine, commercially available as lauryl betaine.
  • Another class of particularly preferred surfactants are the alkyl ether sulfates obtainable by reacting alcohols (preferably having 6 to 22 carbon atoms) with alkylene oxides, especially ethylene oxide, followed by sulfation and neutralization, especially a C 12-14 fatty alcohol ether sulfate alkoxylated with 2 equivalents of ethylene oxide , In the ether sulfates, the corresponding cation is preferably sodium.
  • Surfactants are, if present, preferably in amounts of up to 5 wt .-%, in particular from 0.01 wt .-% to 3 wt .-% in inventive compositions.
  • the preparations may additionally comprise sequestering agents, preferably alkylphosphonic acids, and among these in particular those having at least one amine oxide substituent on the alkyl group, referred to herein as amine oxide phosphonic acids, polyacrylic acids and / or polyoxyacids containing phosphono groups, which may also be in the form of their alkali metal salts.
  • sequestering agents preferably alkylphosphonic acids, and among these in particular those having at least one amine oxide substituent on the alkyl group, referred to herein as amine oxide phosphonic acids, polyacrylic acids and / or polyoxyacids containing phosphono groups, which may also be in the form of their alkali metal salts.
  • amine oxide phosphonic acids are the amine oxide based on aminotrimethylene phosphonic acid. Preferably, from 0.01% to 2% by weight of such sequestering agents are present.
  • compositions preferably contain 0.5% by weight to 2% by weight of silicate, in particular alkali metal silicate, and / or 0.1% by weight to 2% by weight of carbonate, in particular alkali metal carbonate.
  • compositions according to the invention can be prepared in a simple manner by mixing the abovementioned ingredients in the stated amounts.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Description

Die vorliegende Erfindung betrifft die Verwendung bestimmter Riechstoffe in hypochlorithaltigen Bleichmitteln zur Vermeidung des unangenehmen Geruchs nach derartigen Mitteln an menschlicher Haut, insbesondere an den HƤnden, die mit dem Mittel in Kontakt gekommen ist.The present invention relates to the use of certain fragrances in hypochlorite-containing bleaches to avoid the unpleasant odor of such agents on human skin, particularly on the hands which has come in contact with the agent.

Effizientes Reinigen ist eines der Erfordernisse, welche die Akzeptanz solcher Mittel beim Verbraucher beeinflusst. Dies erfordert das Bereitstellen von Mitteln mit einem breiten Fleckentfernungspotential, die beispielsweise ƶlige und fettige Anschmutzungen von Textilien oder harten OberflƤchen, wie Fliesen oder Kacheln, entfernen kƶnnen. Um dieser Forderung nachkommen zu kƶnnen, sind unter anderem Hypochloritbleiche enthaltende Mittel entwickelt worden, in denen das Hypochlorit als starkes Oxidationsmittel zum chemischen Abbau, der Zerstƶrung und der Entfernung der Anschmutzungen beitrƤgt. Ein weiterer Vorteil des Einsatzes von Hypochlorit ist darin zu sehen, dass es als effektives Desinfektionsmittel wirkt. Als Nachteil wird allerdings empfunden, dass nach dem Kontakt mit menschlicher Haut, der sich bei der Anwendung solcher Mittel mit bloƟer Hand zwangslƤufig ergibt und auch sonst, beispielsweise bei der Benutzung von Handschuhen, nicht immer vermeiden lƤƟt, ein an der Haut haftender Geruch entsteht, der sich auch nach mehrmaligem Waschen mit Wasser nicht immer ganz entfernen lƤsst.Efficient cleaning is one of the requirements that influences the acceptance of such agents by the consumer. This requires providing agents with a wide stain removal potential which can remove, for example, oily and greasy soils from fabrics or hard surfaces such as tiles or tiles. In order to meet this demand, hypochlorite bleach containing agents have been developed, among others, in which hypochlorite, as a strong oxidant, contributes to the chemical degradation, destruction and removal of soils. Another advantage of using hypochlorite is that it acts as an effective disinfectant. A disadvantage, however, is felt that after contact with human skin, which inevitably results in the use of such agents with bare hands and otherwise, for example, when using gloves, can not always avoid a sticking to the skin smell, which can not always be removed even after repeated washing with water.

Um dem abzuhelfen ist beispielsweise in der europƤischen Patentanmeldung EP 439 878 vorgeschlagen worden, eine flĆ¼chtige ParfĆ¼mzusammensetzung zu verwenden.To remedy this is for example in the European patent application EP 439 878 have been proposed to use a volatile perfume composition.

In der europƤischen Patentanmeldung EP 0 606 707 werden Mittel beschrieben, die eine Polymerkomponente zusammen mit einer Hypochloritverbindung enthalten und zu einer Verminderung Ć¼bler GerĆ¼che des eigentlichen Mittels wie auch der damit gereinigten OberflƤchen fĆ¼hren. Dies kƶnnte sich auf die hohe ViskositƤt dieser Mittel zurĆ¼ckfĆ¼hren lassen, so dass Verbindungen, die fĆ¼r den nachteiligen Geruch verantwortlich sind, eventuell in Vesikeln eingeschlossen werden.In the European patent application EP 0 606 707 describes agents which contain a polymer component together with a hypochlorite compound and lead to a reduction of malodors of the actual agent as well as the surfaces cleaned therewith. This could be due to the high viscosity of these agents, so that compounds responsible for the offensive odor may be trapped in vesicles.

Im genannten Stand der Technik wurde demnach ein grĆ¶ĆŸeres Schwergewicht auf die Vermeidung von nachteiligen GerĆ¼chen des eigentlichen Mittels und der damit gereinigten OberflƤchen gelegt, und weniger auf das Problem der Geruchsbildung an HautoberflƤchen, die mit dem Mittel in Kontakt gekommen sind, geachtet.Accordingly, in the cited prior art, greater emphasis has been placed on avoiding offensive odors of the actual agent and the surfaces cleaned therewith, and paying less attention to the problem of odor on skin surfaces which have come into contact with the agent.

Die europƤische Patentanmeldung EP 0 812 909 A1 beschreibt die Verwendung von Polycarboxylatpolymer in hypochlorithaltigen Bleichmitteln zur Vermeidung unangenehmer GerĆ¼che, die aus dem Kontakt solcher Mittel mit HautoberflƤchen resultieren.The European patent application EP 0 812 909 A1 describes the use of polycarboxylate polymer in hypochlorite-containing bleaches to avoid unpleasant odors resulting from the contact of such agents with skin surfaces.

Auch die europƤische Patentanmeldung EP 0 622 451 beschƤftigt sich mit der Aufgabe der Geruchsbildung beim und nach dem Anwenden chlorhaltiger Mittel und schlƤgt vor, ein ParfĆ¼m zu verwenden. Dabei stĆ¶ĆŸt man auf die Schwierigkeit, dass einerseits nur wenige Duftstoffe in Gegenwart der starken Oxidationskraft chlorbasierter Bleichmittel stabil sind, und andererseits der Geruch nach Chlor sehr stark und nur schwierig durch ein ParfĆ¼m zu maskieren ist. EP 0 622 451 schlƤgt vor, 0,000002 Gew.-% bis 2 Gew.-% bleichstabiler Duftstoffe, ausgewƤhlt aus den Klassen der Acetale, Aldehyde, Ester, Alkohole, Ketƶne, Ether, Nitrile und Terpene, in solchen Mitteln zu verwenden. Hypochlorithaltige Bleichmittel, enthaltend Diphenyloxid und weitere Riechstoffe, sind aus EP 0 867 503 A2 , US 4 113 645 und JP 52 069415 A bekannt.Also the European patent application EP 0 622 451 deals with the task of odor formation during and after applying chlorine-containing agents and suggests to use a perfume. One encounters the difficulty that on the one hand only a few fragrances are stable in the presence of the strong oxidizing power of chlorine-based bleach, and on the other hand, the smell of chlorine is very strong and difficult to mask by a perfume. EP 0 622 451 proposes to use 0.000002% to 2% by weight of pale stable perfumes selected from the classes of acetals, aldehydes, esters, alcohols, ketones, ethers, nitriles and terpenes in such compositions. Hypochlorite-containing bleaches containing diphenyloxide and other fragrances are made EP 0 867 503 A2 . US 4 113 645 and JP 52 069415 A known.

Ɯberraschenderweise wurde nun gefunden, daƟ eine Kombination bestimmter Riechstoffe besonders gut geeignet ist, den mit Chlorbleiche assoziierten Geruch an menschlicher Haut, die mit Chlorbleiche enthaltenden Mitteln in Kontakt gekommen ist, zu verringern.Surprisingly, it has now been found that a combination of certain fragrances is particularly well suited to reduce the chlorine bleach-associated odor on human skin which has come into contact with chlorine bleach-containing agents.

Gegenstand der vorliegenden Erfindung ist die Verwendung von Riechstoffen zur Verminderung des Geruches nach Chlorbleiche an menschlicher Haut, die in Kontakt mit besagter Chlorbleiche gekommen ist, wobei der Riechstoff ausgewƤhlt wird aus der Gruppe umfassend Mischungen aus Diphenylmethan mit Diphenyloxid und Mischungen aus Diphenylmethan mit Diphenyloxid und mit 2-Methyl-naphthyl-ether, wobei das GewichtsverhƤltnis von Diphenylmethan zu Diphenyloxid von 1:1 bis 1:50 betrƤgt. In einem bevorzugten Aspekt der Verwendung befindet sich die Haut an einer menschlichen Hand.The present invention is the use of fragrances to reduce the odor of chlorine bleach on human skin, which has come into contact with said chlorine bleach, the fragrance is selected from the group comprising mixtures of diphenylmethane with diphenyl oxide and mixtures of diphenylmethane with diphenyl oxide and with 2-methyl-naphthyl ether, wherein the weight ratio of diphenylmethane to diphenyl oxide is from 1: 1 to 1:50. In a preferred aspect of use, the skin is on a human hand.

Der Riechstoff weist vorzugsweise eine Kombination von Diphenylmethan und Diphenyloxid in einem GewichtsverhƤltnis von 1:10 bis 1:5 auf. Er weist weiterhin bevorzugt eine Kombination von Diphenylmethan und 2-Methylnaphthyl-ether in einem GewichtsverhƤltnis von 50:1 bis 1:10, insbesondere von 5:1 bis 1:1 auf. Auch bevorzugt ist, wenn der Riechstoff eine Kombination von Diphenyloxid und 2-Methyl-naphthyl-ether in einem GewichtsverhƤltnis von 250:1 bis 1:1, insbesondere von 50:1 bis 5:1 aufweist.The fragrance preferably has a combination of diphenylmethane and diphenyl oxide in a weight ratio of 1:10 to 1: 5. It furthermore preferably has a combination of diphenylmethane and 2-methylnaphthyl ether in a weight ratio of 50: 1 to 1:10, in particular from 5: 1 to 1: 1. It is also preferred if the fragrance has a combination of diphenyl oxide and 2-methyl-naphthyl ether in a weight ratio of from 250: 1 to 1: 1, in particular from 50: 1 to 5: 1.

Der genannte Riechstoff kann, als solcher oder in Form einer Zubereitung, die ihn enthƤlt, nach der Verwendung des chlorhaltigen Mittels auf die Hautstellen, die mit dem besagten Mittel in Kontakt gekommen sind, aufgebracht werden. Bevorzugt ist jedoch, wenn der Riechstoff bereits Teil der Zusammensetzung ist, welche die Chlorbleiche enthƤlt.Said fragrance, as such or in the form of a preparation containing it, may be applied after the use of the chlorine-containing agent on the skin areas which have come into contact with said agent. However, it is preferred if the fragrance is already part of the composition containing the chlorine bleach.

Die Zusammensetzung ist dabei vorzugsweise eine wƤƟrige FlĆ¼ssigkeit, die unverdĆ¼nnt oder gegebenenfalls nach Vermischen mit Wasser auf einer textilen oder harten OberflƤche angewendet wird und die 0,5 Gew.-% bis 10 Gew.-%, insbesondere 1 Gew.-% bis 6 Gew.-%, an Alkalimetallhypochlorit, insbesondere Natriumhypochlorit, enthƤlt. Ein flĆ¼ssiges wasserhaltiges Bleichmittel, enthaltend Alkalimetallhypochlorit und Riechstoff, wobei der Riechstoff aus der Gruppe umfassend Mischungen aus Diphenylmethan mit Diphenyloxid und Mischungen aus Diphenylmethan mit Diphenyloxid und mit 2-Methyl-naphthyl-ether, wobei das GewichtsverhƤltnis von Diphenylmethan zu Diphenyloxid von 1:1 bis 1:50 betrƤgt, ausgewƤhlt wird, ist ein weiterer Gegenstand der Erfindung.The composition is preferably an aqueous liquid which is used undiluted or, if appropriate, after mixing with water on a textile or hard surface and which contains from 0.5% by weight to 10% by weight, in particular from 1% by weight to 6% by weight .-%, of alkali metal hypochlorite, especially sodium hypochlorite contains. A liquid hydrous bleach containing alkali metal hypochlorite and fragrance, said fragrance being selected from the group consisting of mixtures of diphenylmethane with diphenyloxide and mixtures of diphenylmethane with diphenyloxide and with 2-methyl-naphthyl ether, wherein the weight ratio of diphenylmethane to diphenyloxide is from 1: 1 to 1:50, is selected, is a further object of the invention.

Ein weiterer Gegenstand der Erfindung ist ein Verfahren zum Bleichen von Anschmutzungen auf Textilien und/oder harten OberflƤchen, in dem man eine erfindungsgemƤƟe Zusammensetzung einsetzt.Another object of the invention is a method for bleaching stains on textiles and / or hard surfaces, in which one uses a composition according to the invention.

Ein erfindungsgemƤƟes Mittel enthƤlt vorzugsweise 0,0005 Gew.-% bis 0,005 Gew.-% Diphenylmethan, 0,005 Gew.-% bis 0,025 Gew.-% Diphenyloxid, und/oder 0,0001 Gew.-% bis 0,005 Gew.-% 2-Methyl-naphthyl-ether.An agent of the invention preferably contains from 0.0005% to 0.005% by weight of diphenylmethane, from 0.005% to 0.025% by weight of diphenyloxide, and / or from 0.0001% to 0.005% by weight of 2 methyl-naphthyl ether.

Eine erfindungsgemƤƟe, gegebenenfalls auch im Rahmen der erfindungsgemƤƟen Verwendung zum Einsatz kommende Zusammensetzung enthƤlt vorzugsweise 0,1 Gew.-% bis 2 Gew.-% an Alkalimetallhydroxid und bis zu 5 Gew.-% an bleichstabilem Tensid, insbesondere Betain und/oder Alkylethersulfat.A composition according to the invention, which may also be used in the context of the use according to the invention, preferably contains 0.1% by weight to 2% by weight of alkali metal hydroxide and up to 5% by weight of palladium-stable surfactant, in particular betaine and / or alkyl ether sulfate.

Unter den Betainen sind insbesondere bevorzugt solche der allgemeinen Formel I,

Figure imgb0001
in der R1 eine Alkyl- oder Alkenylgruppe mit 6 bis 22 Kohlenstoffatomen oder eine Gruppe R4CO-NH-(CH2)n- ist, R2 Wasserstoff oder eine Alkylgruppe mit 1 bis 4 Kohlenstoffatomen ist, R3 Wasserstoff oder eine Alkylgruppe mit 1 bis 4 Kohlenstoffatomen ist, R4 eine Alkyl- oder Alkenylgruppe mit 6 bis 22 Kohlenstoffatomen ist, m eine Zahl von 1 bis 6 und n eine Zahl von 1 bis 3 ist. Beispiele fĆ¼r besonders geeignete Vertreter dieser Klasse von Tensiden umfassen C12-18-Alkyl-dimethylbetain, kommerziell erhƤltlich als KokosnuƟbetain, und C10-16-Alkyl-dimethylbetain, kommerziell erhƤltlich als Laurylbetain. Eine weitere Klasse besonders bevorzugter Tenside sind die Alkylethersulfate, die durch Umsetzung von Alkoholen (vorzugsweise mit 6 bis 22 Kohlenstoffatomen) mit Alkylenoxiden, insbesondere Ethylenoxid, und anschlieƟende Sulfatierung und Neutralisation erhƤltlich sind, insbesondere ein mit 2 Equivalenten Ethylenoxid alkoxyliertes C12-14-Fettalkoholethersulfat. In den Ethersulfaten ist das korrespondierende Kation vorzugsweise Natrium. Tenside sind, falls anwesend, vorzugsweise in Mengen bis zu 5 Gew.-%, insbesondere von 0,01 Gew.-% bis 3 Gew.-% in erfindungsgemƤƟen Mitteln enthalten.Among the betaines, particular preference is given to those of the general formula I
Figure imgb0001
 wherein R 1 is an alkyl or alkenyl group having 6 to 22 carbon atoms or a group R 4 is CO-NH- (CH 2 ) n -, R 2 is hydrogen or an alkyl group having 1 to 4 carbon atoms, R 3 is hydrogen or an alkyl group with 1 to 4 carbon atoms, R 4 is an alkyl or alkenyl group having 6 to 22 carbon atoms, m is a number from 1 to 6 and n is a number from 1 to 3. Examples of particularly suitable members of this class of surfactants include C 12-18 alkyl dimethyl betaine, commercially available as coconut betaine, and C 10-16 alkyl dimethyl betaine, commercially available as lauryl betaine. Another class of particularly preferred surfactants are the alkyl ether sulfates obtainable by reacting alcohols (preferably having 6 to 22 carbon atoms) with alkylene oxides, especially ethylene oxide, followed by sulfation and neutralization, especially a C 12-14 fatty alcohol ether sulfate alkoxylated with 2 equivalents of ethylene oxide , In the ether sulfates, the corresponding cation is preferably sodium. Surfactants are, if present, preferably in amounts of up to 5 wt .-%, in particular from 0.01 wt .-% to 3 wt .-% in inventive compositions.

Die Zubereitungen kƶnnen zusƤtzlich Sequestriermittel enthalten, vorzugsweise AlkylphosphonsƤuren und unter diesen insbesondere solche mit zumindest einem Aminoxid-Substituenten an der Alkylgruppe, hier als AminoxidphosphonsƤuren bezeichnet, PolyacrylsƤuren und/oder Phosphonogruppen-aufweisende PolyacrysƤuren, die auch in der Form ihrer Alkalisalze vorliegen kƶnnen. Die Einarbeitung derartiger Komplexbildner fĆ¼hrt Ć¼berraschenderweise zu besonders gutem Glanzerhalt der behandelten harten OberflƤchen. Dies wird nicht beobachtet, wenn man stattdessen andere Komplexbildner, beispielsweise MethylglycindiessigsƤure oder NitrilotriessigsƤure, einsetzt. AminoxidphosphonsƤuren werden normalerweise durch Oxidation von AminoalkylphosphonsƤuren hergestellt. Sie gehƶren vorzugsweise zur Gruppe von Verwindungen gemƤƟ allgemeiner Formel (II),

Figure imgb0002
in der R5 Wasserstoff, eine Gruppe -(CH2)x(CHCH3)y-NH2->O oder ein Alkalimetall ist, x eine Zahl von 1 bis 4 und y 0 oder 1 ist. Unter den besonders bevorzugten AminoxidphosphonsƤuren ist das Aminoxid auf der Basis der AminotrimethylenphosphonsƤure. Vorzugsweise sind 0,01 Gew.-% bis 2 Gew.-% solcher Sequestriermittel vorhanden.The preparations may additionally comprise sequestering agents, preferably alkylphosphonic acids, and among these in particular those having at least one amine oxide substituent on the alkyl group, referred to herein as amine oxide phosphonic acids, polyacrylic acids and / or polyoxyacids containing phosphono groups, which may also be in the form of their alkali metal salts. The incorporation of such complexing leads surprisingly to a particularly good gloss retention of the treated hard surfaces. This is not observed if instead other complexing agents, for example methylglycinediacetic acid or nitrilotriacetic acid, are used. Amine oxide phosphonic acids are normally prepared by oxidation of aminoalkyl phosphonic acids. They preferably belong to the group of twists according to general formula (II),
Figure imgb0002
 wherein R 5 is hydrogen, a group - (CH 2 ) x (CHCH 3 ) y -NH 2 -> O or an alkali metal, x is a number from 1 to 4 and y is 0 or 1. Among the more preferred amine oxide phosphonic acids is the amine oxide based on aminotrimethylene phosphonic acid. Preferably, from 0.01% to 2% by weight of such sequestering agents are present.

Die Mittel enthalten vorzugsweise 0,5 Gew.-% bis 2 Gew.-% Silikat, insbesondere Alkalimetallsilikat, und/oder 0,1 Gew.-% bis 2 % Gew.-% Carbonat, insbesondere Alkalimetallcarbonat.The compositions preferably contain 0.5% by weight to 2% by weight of silicate, in particular alkali metal silicate, and / or 0.1% by weight to 2% by weight of carbonate, in particular alkali metal carbonate.

Die erfindungsgemƤƟen Mittel kƶnnen in einfacher Weise durch Vermischen der obengenannten Inhaltsstoffe in den angegebenen Mengen hergestellt werden.The compositions according to the invention can be prepared in a simple manner by mixing the abovementioned ingredients in the stated amounts.

Claims (20)

  1. Use of odorants in order to diminish the chlorine bleach odour on human skin which has come into contact with said chlorine bleach, characterised in that the odorant is selected from the group comprising mixtures of diphenylmethane with diphenyl oxide and mixtures of diphenylmethane with diphenyl oxide and with 2-methyl naphthyl ether, wherein the weight ratio of diphenylmethane to diphenyl oxide is from 1:1 to 1:50.
  2. Use according to claim 1, characterised in that the skin is located on a human hand.
  3. Use according to claim 1 or 2, characterised in that the odorant is part of the composition which contains the chlorine bleach.
  4. Use according to one of claims 1 to 3, characterised in that the odorant contains diphenylmethane and diphenyl oxide in a weight ratio from 1:10 to 1:5.
  5. Use according to one of claims 1 to 4, characterised in that the odorant contains diphenylmethane and 2-methyl naphthyl ether in a weight ratio from 50:1 to 1:10, in particular from 5:1 to 1:1.
  6. Use according to one of claims 1 to 5, characterised in that the odorant contains diphenyl oxide and 2-methyl naphthyl ether in a weight ratio from 250:1 to 1:1, in particular from 50:1 to 5:1.
  7. Use according to one of claims 3 to 6, characterised in that the composition is an aqueous liquid which is applied, undiluted or optionally after mixing with water, onto a textile surface or hard surface, and which contains 0.5 wt.% to 10 wt.%, in particular 1 wt.% to 6 wt.%, alkali metal hypochlorite, in particular sodium hypochlorite.
  8. Use according to one of claims 3 to 7, characterised in that the composition contains 0.1 wt.% to 2 wt.% alkali metal hydroxide and up to 5 wt.% bleach-stable surfactant, in particular betaine and/or alkyl ether sulfate.
  9. Use according to one of claims 3 to 8, characterised in that the composition contains 0.5 wt.% to 2 wt.% silicate, in particular alkali metal silicate, 0.01 wt.% to 2 wt.% organophosphonic acid and/or phosphonate, in particular amine oxide phosphonic acid, polyacrylic acid containing phosphono groups, and/or an alkali metal salt of one or both of the acids, and/or 0.1 wt.% to 2 wt.% carbonate, in particular alkali metal carbonate.
  10. Use according to one of claims 3 to 9, characterised in that the composition contains 0.0005 wt.% to 0.005 wt.% diphenylmethane, 0.005 wt.% to 0.025 wt.% diphenyl oxide, and/or 0.0001 wt.% to 0.005 wt.% 2-methyl naphthyl ether.
  11. Use according to one of claims 3 to 10, characterised in that, prior to being used, the composition is mixed with water at quantities from 1 part by volume to 100 parts by volume, in particular 2 parts by volume to 10 parts by volume, per 1 part by volume of the in particular liquid composition.
  12. An aqueous liquid bleaching agent containing alkali metal hypochlorite and odorant, characterised in that the odorant is selected from the group comprising mixtures of diphenylmethane with diphenyl oxide and mixtures of diphenylmethane with diphenyl oxide and with 2-methyl naphthyl ether, wherein the weight ratio of diphenylmethane to diphenyl oxide is from 1:1 to 1:50.
  13. An agent according to claim 12, characterised in that it contains 0.5 wt.% to 10 wt.%, in particular 1 wt.% to 6 wt.%, alkali metal hypochlorite, in particular sodium hypochlorite.
  14. An agent according to claim 12 or 13, characterised in that it contains 0.1 wt.% to 2 wt.% alkali metal hydroxide and up to 5 wt.% bleach-stable surfactant, in particular betaine and/or alkyl ether sulfate.
  15. An agent according to one of claims 12 to 14, characterised in that it contains 0.5 wt.% to 2 wt.% silicate, in particular alkali metal silicate, 0.01 wt.% to 2 wt.% alkylphosphonic acid and/or phosphonate, in particular amine oxide phosphonic acid, polyacrylic acid containing phosphono groups, and/or an alkali metal salt of one or both of the acids, and/or 0.1 wt.% to 2 wt.% carbonate, in particular alkali metal carbonate.
  16. An agent according to one of claims 12 to 15, characterised in that it contains diphenylmethane and diphenyl oxide in a weight ratio from 1:10 to 1:5.
  17. An agent according to one of claims 12 to 16, characterised in that it contains diphenylmethane and 2-methyl naphthyl ether in a weight ratio from 50:1 to 1:10, in particular from 5:1 to 1:1.
  18. An agent according to one of claims 12 to 17, characterised in that it contains diphenyl oxide and 2-methyl naphthyl ether in a weight ratio from 250:1 to 1:1, in particular from 50:1 to 5:1.
  19. An agent according to one of claims 12 to 18, characterised in that it contains 0.0005 wt.% to 0.005 wt.% diphenylmethane, 0.005 wt.% to 0.025 wt.% diphenyl oxide, and/or 0.0001 wt.% to 0.005 wt.% 2-methyl naphthyl ether.
  20. A method for bleaching stains on textiles and/or hard surfaces, characterised in that a composition according to one of claims 12 to 19 is used.
EP06829482.6A 2005-12-22 2006-12-11 Odour reduction for agents containing hypochlorite Not-in-force EP1963474B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005062008A DE102005062008B3 (en) 2005-12-22 2005-12-22 Odor reduction of hypochlorite-containing agents
PCT/EP2006/011890 WO2007079870A1 (en) 2005-12-22 2006-12-11 Odour reduction for agents containing hypochlorite

Publications (2)

Publication Number Publication Date
EP1963474A1 EP1963474A1 (en) 2008-09-03
EP1963474B1 true EP1963474B1 (en) 2016-11-02

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EP06829482.6A Not-in-force EP1963474B1 (en) 2005-12-22 2006-12-11 Odour reduction for agents containing hypochlorite

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US (1) US8008238B2 (en)
EP (1) EP1963474B1 (en)
DE (1) DE102005062008B3 (en)
ES (1) ES2605747T3 (en)
WO (1) WO2007079870A1 (en)

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US8008238B2 (en) 2011-08-30
ES2605747T3 (en) 2017-03-16
EP1963474A1 (en) 2008-09-03
WO2007079870A1 (en) 2007-07-19
US20080261839A1 (en) 2008-10-23
DE102005062008B3 (en) 2007-08-30

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