EP0447261B1 - Bleichmittel - Google Patents

Bleichmittel Download PDF

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Publication number
EP0447261B1
EP0447261B1 EP91302262A EP91302262A EP0447261B1 EP 0447261 B1 EP0447261 B1 EP 0447261B1 EP 91302262 A EP91302262 A EP 91302262A EP 91302262 A EP91302262 A EP 91302262A EP 0447261 B1 EP0447261 B1 EP 0447261B1
Authority
EP
European Patent Office
Prior art keywords
weight
solution according
soap
content
carbon atoms
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.)
Expired - Lifetime
Application number
EP91302262A
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English (en)
French (fr)
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EP0447261A1 (de
Inventor
Christophe Joyeux
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0447261A1 publication Critical patent/EP0447261A1/de
Application granted granted Critical
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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
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/37—Mixtures of compounds all of which are anionic
    • 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
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • C11D10/042—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on anionic surface-active compounds and soap
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • C11D1/75—Amino oxides

Definitions

  • This invention relates to hypochlorite-based aqueous liquid bleaching compositions.
  • hypochlorite bleach It is well known to include both hypochlorite bleach and surfactant in the same compositions.
  • EP-A-304328 discloses machine dishwashing compositions containing hypochlorite bleach, a low level of secondary alkane sulphonate and a low level of soap.
  • the document is concerned with compositions which take the form of slurry-like pastes with the ability to suspend particles of detergent builder.
  • FR-A-2094708 discloses homing hypochlorite bleach compositions which may contain alkane sulphonate and alkyl ether sulphonate. The document acknowledges that at least some of its compositions will have pronounced opacity.
  • EP-A-373864 is a prior document by reason of Article 54(3) EPC only. It discloses thickened aqueous bleaching compositions containing hypochlorite. It exemplifies compositions containing 1% by weight of sodium paraffin sulphonate and 0.15% by weight coconut fatty acid under alkaline conditions when the fatty acid will be converted to soap.
  • alkyl ether sulphate and/or soap among the surfactants present in such a composition enhances the ability of the composition to dissolve perfume.
  • the incorporation of perfume is generally desired for compositions intended for domestic use.
  • incorporation of some alkyl ether sulphate can improve the ability of the composition to remove a number of stains.
  • a perfumed aqueous liquid solution of alkali metal hypochlorite which is a clear liquid solution containing at least 0.1% by weight of perfume and also containing a surfactant mixture comprising (i) an alkane sulphonate of formula R-SO3M in which R is an alkyl group with 8 to 22 carbon atoms and (ii) an alkyl ether sulphate of formula R1-(OC2H4) n SO4M in which R1 is an alkyl group with 8 to 20 carbon atoms and n has a value in the range from 0.5 to 12, and/or (iii) soap of formula R2CO2M where R2 is an alkyl or alkenyl group of 7 to 19 carbon atoms, each M denoting a solubilising cation; the amounts of the said surfactants, by weight based on the whole composition, being i) alkane sulphonate 1 to 10% ii) alkyl ether sulph
  • alkali metal hypochlorite solution contains varying amounts of sodium chloride. We prefer to use hypochlorite solution which has a fairly low content of sodium chloride. We have then found it possible to prepare compositions which contain a substantial proportion of surfactant.
  • compositions of the invention are devoid of hydrotropes such as urea, alcohols with up to four carbon atoms, or short chain alkylaryl sulphonates, e.g.
  • the proportion by weight of it may be less than the amount of surfactants (other than amine oxide, if any) present, better less than half the amount of surfactants other than amine oxide. In any case, it is desirable to exclude urea and primary or secondary alcohols because these are not stable in the presence of hypochlorite.
  • the alkane sulphonate used in this invention has the formula: R - SO3 M where R is an alkyl group of 8 to 22.
  • R has 12 to 22, carbon atoms and the solubilising cation M is preferably alkali metal.
  • R is a secondary alkyl group. It may be branched but preferably is unbranched.
  • the amount of the alkane sulphonate lies in the range from 1 to 10% by weight of the composition.
  • the amount may possibly be not more than 8%, e.g. 2% to 6%.
  • Alkyl ether sulphate useful in this invention has the formula: R1 - (OC2H4) n OSO3M where M is a solubilising cation, especially alkali metal, R1 is an alkyl group of 8 to 20, preferably 10 to 16, carbon atoms and n has an average value in the range from 0.5 to 12, better 1 to 6, even better 2 to 5. R1 may be primary or secondary, and preferably is unbranched.
  • Soap useful in this invention has the formula: R2 CO2 M where M is a solubilising cation, especially alkali metal and R2 is an alkyl group of 7 to 19, preferably 9 to 15, carbon atoms. Olefinic unsaturation should desirably be absent, for the sake of stability in the presence of hypochlorite.
  • the total amount of soap and alkyl ether sulphate lies in the range from 0.2 to 4% by weight of the composition. If alkyl ether sulphate is present, the amount will generally be at least 0.1% by weight. Similarly, if soap is present, the amount will generally be at least 0.1%.
  • the weight ratio of alkane sulphonate to the total of alkyl ether sulphate and soap is preferably from 1:1 to 10:1 better 2:1 to 6:1.
  • R, R1 and R2 can, but do not need to be, the same, but preferably R1 and R2CO2 both have an average carbon chain length of 10 to 16 carbon atoms and may be predominantly of 12 carbon length.
  • hypochlorite is desirably included in a quantity to provide from 0.1 to 8%, better 0.5 to 3% or 5% of available chlorine, by weight based on the whole composition. It is desirable to use hypochlorite in which the amount of available chlorine is at least twice the amount of any sodium chloride present.
  • One supplier of suitable hypochlorite is Tahn and Mulhouse.
  • the composition will generally be alkaline.
  • alkali metal hydroxide may be included in a quantity between 0.1 and 1.5% by weight of the composition.
  • the amount of perfume dissolved in the composition, made soluble by the presence of alkyl ether sulphate and/or soap may lie in the range from 0.1 to 1.0% by weight of the composition.
  • the amount of perfume is up to 0.6 or 0.7%.
  • a preferred composition according to this invention may have constituents and quantities as set out below.
  • alkali metal silicate a constituent that is possible. Notable is 0.1 to 0.5% of alkali metal silicate.
  • the pH of the composition is, suitably, greater than 11. This will give a lesser alkaline pH on dilution, especially when dilution is with hard tap water.
  • compositions were prepared using the following constituents: Secondary alkane sulphonate (SAS) with average 16-18 carbon atoms Linear alkyl ether sulphate (LES) in which the alkyl group has average 12-13 carbon atoms and the average degree of ethoxylation is 3 Lauric soap Sodium hydroxide Perfume
  • a sodium hypochlorite solution which had the following characteristics as supplied: Available chlorine over 315 g/litre NaOH 10-20 g/litre Specific gravity 1-315 to 1-320 NaCl 80 to 120 g/litre
  • compositions were made up in distilled water. All compositions contained sufficient hypochlorite to yield 1% available chlorine. It was noted whether the compositions were cloudy or clear. Compositions and results are set out in the following Tables 1 and 2:
  • compositions 2, 3 and 4 show that increasing the amount of SAS from 2.0 to 2.8% was not sufficient to render the perfume soluble but addition of 0.26% soap did bring about solution of the perfume.
  • Composition 12 shows that addition of 0.26% LES also brought about solution of the perfume.
  • Compositions 5, 6 and 7 show the same effect at higher concentrations. Increasing the SAS level to 2.0 to 3.9% was not enough to bring about solution of 0.3% perfume but addition of 0.58% soap did cause the perfume to dissolve.
  • compositions 8 and 9 show that increasing the level of SAS to 5% was not enough to bring about the solution of perfume. Comparison also with compositions 10 and 11 shows that addition of 0.5% LES or 0.5% soap did dissolve the perfume.
  • compositions were prepared using the same constituents as in Example 1, although in addition all compositions included 0.2% sodium silicate. Compositions and results are set out in the following Table 3.
  • compositions 15, 16, 18 and 20 demonstrate that soap and LES can be used together to bring about the solubilisation of perfume.
  • compositions were prepared using the same materials as in Example 1, without sodium silicate, and with the amounts of the materials as set out in the following Table 4.
  • compositions were prepared in distilled water using the same materials as in Example 1 without sodium silicate, and with the amounts of the materials as set out in the following Table 5.
  • compositions were used to remove various stains by a standard procedure. 1 ml of the composition was applied to a plastic tile bearing the stain. The tile was rubbed with the composition 200 times, using a machine to rub the tile. Each composition was used to clean three tiles bearing each stain. After the tiles had been cleaned in this way the effectiveness of cleaning was assessed by a panel of five evaluators whose assessments were averaged.
  • Composition D was found to be more effective than C on stains which were oil, two types of glue, vegetable fat and red pencil.
  • compositions of Example 2 were diluted with distilled water and used to wash a plastic tile. This was allowed to dry and the presence of streaks on the tile was assessed by the panel of evaluators.
  • the amounts of composition diluted to one litre with water were 20, 25 and 50 grams. At each dilution composition D gave less streaking than composition C.

Landscapes

  • 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)

Claims (8)

  1. Parfümierte wässerige flüssige Alkalimetallhypochloritlösung, die eine mindestens 0,1 Gew.-% Parfum enthaltende, klare, flüssige Lösung ist, und ebenfalls ein Tensidgemisch enthält, umfassend
    (i) ein Alkansulfonat der Formel R-SO₃M, worin R eine Alkylgruppe mit 8 bis 22 Kohlenstoffatomen ist und entweder
    (ii) ein Alkylethersulfat der Formel R¹-(OC₂H₄)nSO₄M, worin R¹ eine Alkylgruppe mit 8 bis 20 Kohlenstoffatomen bedeutet und n einen Wert im Bereich von 0,5 bis 12 aufweist und/oder
    (iii) Seife der Formel R²CO₂M, worin R² eine Alkyl- oder Alkenylgruppe mit 7 bis 19 Kohlenstoffatomen darstellt,
       M jeweils ein solubilisierendes Kation bedeutet;
       die Mengen des Tensids, bezogen auf das Gewicht der gesamten Zusammensetzung, für i) Alkansulfonat 1 bis 10 % ii) Alkylethersulfat 0 bis 3 % iii) Seife 0 bis 3 % ist,
       wobei jedoch (ii) und (iii) insgesamt 0,2 bis 4 % sind und die Menge an Aminoxid (falls vorliegend) in der Zusammensetzung weniger als die Hälfte des Gehalts anderer Tenside ist.
  2. Lösung nach Anspruch 1, wobei R¹ und R²CO₂- jeweils im Durchschnitt 10 bis 16 Kohlenstoffatome besitzen.
  3. Lösung nach Anspruch 1 oder Anspruch 2, wobei der Natriumchloridgehalt nicht mehr als die Hälfte der Menge an verfügbarem Chlor, auf das Gewicht bezogen, ist.
  4. Lösung nach Anspruch 1 oder Anspruch 2, enthaltend, auf das Gewicht der gesamten Zusammensetzung bezogen: i) Alkansulfonat 1 bis 6 % ii) Alkylethersulfat 0 bis 2 % iii) Seife 0 bis 2 % Gesamtheit von (ii) und (iii) 0,2 bis 3 %.
  5. Lösung nach Anspruch 4, wobei der Natriumchloridgehalt nicht mehr als die Hälfte der Menge an verfügbarem Chlor, auf das Gewicht bezogen, ist.
  6. Lösung nach einem der Ansprüche 1 bis 5, enthaltend 0,1 bis 0,6 Gew.-% Parfum.
  7. Lösung nach einem der vorangehenden Ansprüche, wobei der Gehalt an hydrotropen Stoffen weniger als die Hälfte des Gehalts an von Aminoxid (falls vorliegend) verschiedenem Tensid ist.
  8. Lösung nach einem der vorangehenden Ansprüche, wobei der Alkansulfonatgehalt mehr als 1 Gew.-% ist.
EP91302262A 1990-03-15 1991-03-15 Bleichmittel Expired - Lifetime EP0447261B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909005873A GB9005873D0 (en) 1990-03-15 1990-03-15 Bleaching composition
GB9005873 1990-03-15

Publications (2)

Publication Number Publication Date
EP0447261A1 EP0447261A1 (de) 1991-09-18
EP0447261B1 true EP0447261B1 (de) 1995-01-25

Family

ID=10672693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91302262A Expired - Lifetime EP0447261B1 (de) 1990-03-15 1991-03-15 Bleichmittel

Country Status (10)

Country Link
EP (1) EP0447261B1 (de)
JP (1) JPH0762154B2 (de)
AU (1) AU661269B2 (de)
BR (1) BR9106150A (de)
CA (1) CA2038189C (de)
DE (1) DE69106908T2 (de)
ES (1) ES2069200T3 (de)
GB (1) GB9005873D0 (de)
WO (1) WO1991013964A1 (de)
ZA (1) ZA911937B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5236614A (en) * 1990-09-25 1993-08-17 Colgate-Palmolive Company Stable microemulsion disinfecting detergent composition
DE4131715A1 (de) * 1991-09-24 1993-03-25 Henkel Kgaa Waessrige klarfluessige konzentrate von alkylsulfaten
GB9213578D0 (en) * 1992-06-26 1992-08-12 Unilever Plc Improvements to bleaching compositions
GB9307804D0 (en) * 1993-04-15 1993-06-02 Unilever Plc Hygienic spray cleaner
DE4333100C1 (de) * 1993-09-29 1994-10-06 Henkel Kgaa Bleich- und Desinfektionsmittel
NL9401510A (nl) * 1994-09-16 1996-05-01 Chem Y Surfactantsamenstelling, surfactantconcentraat in vloeibare vorm en waterig bleekmiddel met verhoogde viscositeit en reinigende werking.
DE19730650C2 (de) 1997-07-17 1999-12-02 Henkel Kgaa Verfahren zur Vermeidung der Ablagerung von Schwermetallionen auf Textilfasern
GB9727517D0 (en) * 1997-12-31 1998-02-25 Jeyes Group Plc Liquid bleach composition
DE19858238A1 (de) * 1998-12-17 2000-06-21 Henkel Kgaa Viskoelastische Bleich- und Desinfektionsmittel
DE102005041436A1 (de) * 2005-08-31 2007-03-01 Henkel Kgaa Flüssiges hypohalogenithaltiges Bleichmittel
US8426349B2 (en) * 2009-05-26 2013-04-23 Delaval Holding Ab Chlorinated alkaline pipeline cleaner with methane sulfonic acid
EP3078731A1 (de) * 2015-04-10 2016-10-12 Henkel AG & Co. KGaA Reinigungsmittel enthaltend bleiche

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0373864A2 (de) * 1988-12-15 1990-06-20 The Procter & Gamble Company Stabile, verdickte wässrige Bleichmittelzusammensetzungen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2094708A5 (en) * 1970-06-30 1972-02-04 Moreau Francis Foamed javel water-contg a detergent
BE786550A (fr) * 1971-07-23 1973-01-22 Basf Ag Detergents pour le traitement des textiles cellulosiques
GB8325541D0 (en) * 1983-09-23 1983-10-26 Unilever Plc Liquid thickened bleaching composition
US4695394A (en) * 1984-04-20 1987-09-22 The Clorox Company Thickened aqueous cleanser
FR2570713B1 (fr) * 1984-09-21 1987-08-21 Lesieur Cotelle Compositions de nettoyage aqueuses epaissies
NZ224700A (en) * 1987-05-26 1991-09-25 Bristol Myers Co Aqueous cleaner comprising alkali metal halogenite, perfume and an anionic surfactant stabiliser
GB8719776D0 (en) * 1987-08-21 1987-09-30 Unilever Plc Machine dishwashing compositions
US4842757A (en) * 1988-01-21 1989-06-27 The Clorox Company Thickened liquid, improved stability abrasive cleanser

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0373864A2 (de) * 1988-12-15 1990-06-20 The Procter & Gamble Company Stabile, verdickte wässrige Bleichmittelzusammensetzungen

Also Published As

Publication number Publication date
JPH05505207A (ja) 1993-08-05
CA2038189A1 (en) 1991-09-16
DE69106908T2 (de) 1995-07-13
AU7448591A (en) 1991-10-10
DE69106908D1 (de) 1995-03-09
JPH0762154B2 (ja) 1995-07-05
BR9106150A (pt) 1993-03-09
CA2038189C (en) 1999-02-09
EP0447261A1 (de) 1991-09-18
ZA911937B (en) 1992-11-25
AU661269B2 (en) 1995-07-20
ES2069200T3 (es) 1995-05-01
GB9005873D0 (en) 1990-05-09
WO1991013964A1 (en) 1991-09-19

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