WO1996030484A1 - Detergent liquide isotrope alcalin contenant du peroxyde - Google Patents

Detergent liquide isotrope alcalin contenant du peroxyde Download PDF

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Publication number
WO1996030484A1
WO1996030484A1 PCT/GB1996/000643 GB9600643W WO9630484A1 WO 1996030484 A1 WO1996030484 A1 WO 1996030484A1 GB 9600643 W GB9600643 W GB 9600643W WO 9630484 A1 WO9630484 A1 WO 9630484A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid detergent
isotropic liquid
hydrotrope
aqueous alkaline
surfactant
Prior art date
Application number
PCT/GB1996/000643
Other languages
English (en)
Inventor
Michael John Day
Carey James Walsh
Original Assignee
Warwick International Group Limited
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
Publication date
Application filed by Warwick International Group Limited filed Critical Warwick International Group Limited
Priority to AU51147/96A priority Critical patent/AU5114796A/en
Publication of WO1996030484A1 publication Critical patent/WO1996030484A1/fr

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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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3947—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
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • 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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2041—Dihydric alcohols
    • C11D3/2048—Dihydric alcohols branched
    • 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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2068—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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/34—Organic compounds containing sulfur
    • C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
    • 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
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2041—Dihydric alcohols
    • C11D3/2044—Dihydric alcohols linear

Definitions

  • This invention relates to aqueous alkaline isotropic liquid detergent compositions particularly to compositions containing hydrogen peroxide and a surfactant system including an anionic surfactant.
  • a problem with formulating an aqueous isotropic liquid containing surfactant and peroxide is that the pH of the composition tends to drift towards the acid range with time. This loss of alkalinity reduces the detergency and bleaching of the composition. It would therefore be advantageous if such isotropic liquids could be stabilised at an alkaline pH.
  • W093/14183 describes liquid detergent compositions containing anionic and/or nonionic surfactant, oxygen bleach and a metal sequestering agent to prevent discoloration with time.
  • the composition may also contain a hydrotrope.
  • Useful hydrotropes are stated to be alcohols such as ethyl alcohol and propylene glycol at a level of 0 to 15%; sodium and potassium toluene, xylene or cumene sulphonate at levels from 0 to 10%; and urea at a level of 0 to 10%.
  • Example 1 uses a mixture of am ⁇ onium xylene sulphonate (4%) and ethanol (5.5%). However the level of peroxide is only 0.18% and the pH is stated to be 7.1. The same pH is mentioned for the other examples in this patent specification. All examples are rich in anionic surfactant.
  • WO 92/02607 describes an aqueous liquid bleaching composition with good storage characteristics. It contains a surfactant system comprising a mixture of soap, alkyl polyglucoside and sodium fatty - 9 -
  • the formulations also include ethanol, propane-1,2-diol (propylene glycol) and diethylenetriaminepentarrtethylene phosphonate.
  • the pH of the formulations is about 7.
  • US 4 507 219 describes heavy duty liquid detergents in the form of isotropic liquids.
  • a chlorine bleach can be added and the compositions are stated to be compatible with the bleach.
  • a preferred solvent system is said to be a mixture of ethanol, a polyol and water. Propylene glycol is the preferred polyol. It is stated that the composition may also contain hydrotropes. There is no suggestion to use an oxygen bleach.
  • US 4 470 919 describes a liquid detergent composition containing hydrogen peroxide, surfactant, fatty acid and a calcium salt.
  • Preferred anionic surfactants include alkylbenzene sulphonates, alkyl sulphates and alkyl ether sulphates.
  • the pH of the composition must be less than 9.
  • the compositions may contain a phase regulator such as ethanol, n-propanol, isopropanol, butanol, propane-1,2-diol, propane-1,3-diol, n-hexanol; 2-methyl,2,4- pentanediol, monomethyl-, ethyl and propyl and monobutyl- ethers and diethylene glycol.
  • composition may also include known detergent hydrotropes e.g. sodium, potassium and ammonium salts of xylene, toluene, ethyl benzene and cumene sulphonic acids. Examples use only ethanol and propane-1,2-diol.
  • known detergent hydrotropes e.g. sodium, potassium and ammonium salts of xylene, toluene, ethyl benzene and cumene sulphonic acids. Examples use only ethanol and propane-1,2-diol.
  • EP 0 037 184 describes an aqueous detergent composition containing peroxide and an alcohol stabiliser system. Built anionic rich and unbuilt nonionic rich compositions are disclosed. Ethanol is always used, along with a sodium xylene sulphonate (SXS) hydrotrope for these compositions. In related patent specification EP 0 076 166 isopropanol is stated to be preferred over ethanol because of its higher flashpoint.
  • SXS sodium xylene sulphonate
  • the examples disclose the use of 6% anionic surfactant (linear alkylbenzene sulphonate) , 4% nonionic surfactant (primary alcohol eth ⁇ xylate) and 6% of the sulphonate hydrotrope ELTESOL SX30 (SXS) in addition to the peroxide and isopropanol. This example was not adjusted to an alkaline pH.
  • an aqueous alkaline isotropic liquid detergent composition comprising a mixture of nonionic and anionic surfactants and at least 0.2% by weight hydrogen peroxide characterised in that it also comprises a mixture of two hydrotropes selected to reduce the downward pH drift of the composition with time and wherein one of the hydrotropes is an aryl, preferably alkylaryl sulphonate.
  • the surfactant part of the composition is preferably nonionic rich and contains an anionic co-surfactant.
  • nonionic rich means that the proportion of nonionic surfactant is greater than 50% by weight of the total of all anionic and nonionic surfactants in the composition.
  • Anionic rich means that the amount by weight of nonionic surfactant makes up less than or equal to 50% of the total of all anionic and nonionic surfactants.
  • the anionic co-surfactant may be a linear alkylbenzene sulphonic acid (LAS) .
  • a preferred anionic co-surfactant is lauryl ether sulphate (LES) .
  • the total amount of surfactant in the composition will be in the range 20 to 70% by weight, preferably 30 to 50%.
  • the nonionic surfactant preferably forms a major part of the total amount of surfactant.
  • Preferred nonionic surfactants are alcohol ethoxylates such as C ⁇ -24 , preferably _ 0 . 16l alcohols which have been ethoxylated using l to 20 moles, preferably 3 to 12 moles of ethylene oxide per irole of .alcohol; alk lphenol ethoxylates; alkyl polyglycosides, particularly alkyl polyglucosides,- amine oxides and mixtures thereof.
  • the composition may additionally contain other surfactants chosen from amphoteric, zwitterionic and cationic surfactants.
  • the first hydrotrope is preferably an alkylaryl sulphonate selected from the group comprising ammonium, sodium and potassium salts of toluene, xylene and cumene sulphonate at levels up to about 20%.
  • SXS is a preferred first hydrotrope.
  • the second hydrotrope is selected from the group comprising: propane-1,2-diol also known as propylene glycol; 2-methyl-2,4-pentanediol also known as hexylene glycol; and 2- (2-butoxyethoxy) ethanol also known as butyl carbitol or di(ethylene glycol) butyl ether.
  • propane-1,2-diol also known as propylene glycol
  • 2-methyl-2,4-pentanediol also known as hexylene glycol
  • 2- (2-butoxyethoxy) ethanol also known as butyl carbitol or di(ethylene glycol) butyl ether.
  • propylene glycol is used.
  • the second hydrotrope is selected from the group comprising hexylene glycol and butyl carbitol, preferably hexylene glycol.
  • the second hydrotrope is preferably present at a level of from 5% to 25% by weight.
  • composition is substantially free from ethanol or other lower C 1-4 monohydric alcohols as this reduces the danger of explosion from the mixture of low flashpoint alcohol and peroxide. It also reduces the amount of odour due to evaporation of volatile material.
  • first to second hydrotrope may be from 4:1 to 1:4, preferably 3:1 to 1:3 and most preferably about 1:1 by weight.
  • the pH of the composition will normally be alkaline, preferably 9 to 11, most preferably around 9.5.
  • the pH after storage at 25°C for 12 weeks should not have dropped more than 1.5 pH units, preferably not more than 1 pH unit, and should not be acid.
  • the hydrogen peroxide is preferably present in an amount by weight in the range 0.2 to 15% more preferably 0.2 to 8% and most preferably around 5%.
  • the composition may also comprise minor components conventionally found in a heavy duty liquid detergent composition. These include, perfume, enzymes, optical brighteners, preservatives, thickeners, colorants, builders, anti-redeposition agents or anti-dye transfer agents, such as polyvinylpyrrolidone (PVP) and other conventional additives.
  • PVP polyvinylpyrrolidone
  • the co ⁇ position preferably contains sequestrants.
  • Preferred sequestrants are sodium diethylenetriaminepentamethylene- phosphonate, sold as Dequest 2066 by Monsanto, 2,2' -dipyridylamine (DPA) and 1,2' -diaminocyclohexyl tetrakis methylene phosphonic acid.
  • DPA 2,2' -dipyridylamine
  • Other sequestering agents for iron, cobalt, copper and manganese ions may be used instead of or in addition to these preferred sequestrants.
  • nonionic surfactant used was SYNPERONIC A7 a 90% solution C 13-1S 7EO primary alcohol ethoxylate ex Cargo Fleet.
  • the anionic surfactant was either MARLON AS3 a C 10-13 linear alkylbenzene sulphonic acid ex Huls, or NEOPON LOS 3N 70 a sodium lauryl ether sulphate ex Baxenden chemicals.
  • the initial %H-0 2 was 5.0 and the initial pH was ca. 9.4.
  • a mixed sequestrant system of Dequest 2066 and DPA was used. All formulations contain sodium hydroxide to adjust the final pH of the composition and also to neutralise the LAS in situ where it is used.
  • Formulations also included PVP as an anti-redeposition and anti-dye transfer agent and TINOPAL CBS-X, a fluorescer ex Ciba Geigy.
  • the anionic surfactant was LAS.
  • comparative example A the hydrotrope was propylene glycol alone
  • comparative example B the hydrotrope was SXS alone and in exanple 1 the hydrotrope system was a 50/50 mixture, by weight, of propylene glycol and SXS.
  • the % H,0 2 was measured by permanganate titration initially and after storage for specified periods of time at constant temperature. Results are given in Table 2 for extended storage at 25°C and storage at 37°C.
  • Comparative example E uses the single hydrotrope hexylene glycol with a 70/30 ratio of nonionic to anionic in a composition comprising 45% total surfactant.
  • the anionic surfactant was LES.
  • Hexylene glycol was used instead of propylene glycol with this anionic surfactant.
  • Exanple 5 contained 40% total surfactant and was formulated with a 75/25 ratio of nonionic to LES anionic.
  • the hydrotrope system was a 50/50 mixture, by weight, of hexylene glycol and SXS. pH and %H 2 0 2 loss data for 25°C and 37°C are given in Table 4. Table 4 - pH/ %H 2 0 2 loss
  • peroxide stability in the mixed hydrotrope formulations at a pH of around 9.5 is co ⁇ parable to that in single hydrotrope less alkaline formulations.

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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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention concerne une composition détergente liquide, isotrope, aqueuse comprenant un mélange de tensioactifs non ioniques et anioniques et de peroxyde d'hydrogène. Cette composition est appropriée pour être utilisée comme détergent de blanchissage, et se caractérise en ce qu'elle contient un mélange de deux hydrotropes, dont l'un est un hydrotrope de sulfonate d'aryle. L'utilisation d'une combinaison spécifique de deux hydrotropes dans ces compositions entraîne une réduction de l'écart du pH sans compromettre la stabilité du peroxyde. Cette caractéristique de réduction de l'écart du pH est inattendue du fait que, lorsqu'ils sont utilisés individuellement dans une formulation complète, les hydrotropes ont tendance à déplacer le pH dans une zone acide.
PCT/GB1996/000643 1995-03-24 1996-03-18 Detergent liquide isotrope alcalin contenant du peroxyde WO1996030484A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU51147/96A AU5114796A (en) 1995-03-24 1996-03-18 Alkaline isotropic liquid detergent with peroxide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9506093.5A GB9506093D0 (en) 1995-03-24 1995-03-24 Alkaline isotropic liquid detergent with peroxide
GB9506093.5 1995-03-24

Publications (1)

Publication Number Publication Date
WO1996030484A1 true WO1996030484A1 (fr) 1996-10-03

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Family Applications (1)

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PCT/GB1996/000643 WO1996030484A1 (fr) 1995-03-24 1996-03-18 Detergent liquide isotrope alcalin contenant du peroxyde

Country Status (3)

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AU (1) AU5114796A (fr)
GB (1) GB9506093D0 (fr)
WO (1) WO1996030484A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962520A1 (fr) * 1998-05-29 1999-12-08 The Procter & Gamble Company Compositions liquides de blanchiment
WO2001000758A2 (fr) * 1999-06-30 2001-01-04 Huntsman Petrochemical Corporation Melanges tensio-actifs concentres
US6617303B1 (en) 1999-01-11 2003-09-09 Huntsman Petrochemical Corporation Surfactant compositions containing alkoxylated amines

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037184A2 (fr) * 1980-04-01 1981-10-07 Interox Chemicals Limited Compositions détergentes liquides, leur préparation et leur utilisation dans des procédés de lavage
US4470919A (en) * 1982-02-03 1984-09-11 The Procter & Gamble Company Oxygen-bleach-containing liquid detergent compositions
EP0385216A1 (fr) * 1989-02-27 1990-09-05 Henkel Kommanditgesellschaft auf Aktien Compositions détergentes liquides blanchissantes
WO1992002607A1 (fr) * 1990-07-27 1992-02-20 Henkel Kommanditgesellschaft Auf Aktien Liquide de lavage blanchissant
EP0544359A2 (fr) * 1991-11-25 1993-06-02 Unilever N.V. Stabilisation d'un agent de blanchiment contenu dans des liquides pour lavage intensif contenant des enzymes
WO1993014183A1 (fr) * 1992-01-10 1993-07-22 The Procter & Gamble Company Compositions detersives incolores a stabilite amelioree

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037184A2 (fr) * 1980-04-01 1981-10-07 Interox Chemicals Limited Compositions détergentes liquides, leur préparation et leur utilisation dans des procédés de lavage
US4470919A (en) * 1982-02-03 1984-09-11 The Procter & Gamble Company Oxygen-bleach-containing liquid detergent compositions
EP0385216A1 (fr) * 1989-02-27 1990-09-05 Henkel Kommanditgesellschaft auf Aktien Compositions détergentes liquides blanchissantes
WO1992002607A1 (fr) * 1990-07-27 1992-02-20 Henkel Kommanditgesellschaft Auf Aktien Liquide de lavage blanchissant
EP0544359A2 (fr) * 1991-11-25 1993-06-02 Unilever N.V. Stabilisation d'un agent de blanchiment contenu dans des liquides pour lavage intensif contenant des enzymes
WO1993014183A1 (fr) * 1992-01-10 1993-07-22 The Procter & Gamble Company Compositions detersives incolores a stabilite amelioree

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962520A1 (fr) * 1998-05-29 1999-12-08 The Procter & Gamble Company Compositions liquides de blanchiment
WO1999063033A1 (fr) * 1998-05-29 1999-12-09 The Procter & Gamble Company Compositions de blanchiment liquides
US6482786B1 (en) 1998-05-29 2002-11-19 The Procter & Gamble Company Liquid bleaching compositions comprising hydrogen peroxide, betaine, and ethoxylated nonionic surfactant
US6617303B1 (en) 1999-01-11 2003-09-09 Huntsman Petrochemical Corporation Surfactant compositions containing alkoxylated amines
WO2001000758A2 (fr) * 1999-06-30 2001-01-04 Huntsman Petrochemical Corporation Melanges tensio-actifs concentres
WO2001000758A3 (fr) * 1999-06-30 2002-10-24 Huntsman Spec Chem Corp Melanges tensio-actifs concentres

Also Published As

Publication number Publication date
AU5114796A (en) 1996-10-16
GB9506093D0 (en) 1995-05-10

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