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WO1996030485A1 - Detergent liquide isotrope alcalin avec du peroxyde - Google Patents

Detergent liquide isotrope alcalin avec du peroxyde Download PDF

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Publication number
WO1996030485A1
WO1996030485A1 PCT/GB1996/000644 GB9600644W WO9630485A1 WO 1996030485 A1 WO1996030485 A1 WO 1996030485A1 GB 9600644 W GB9600644 W GB 9600644W WO 9630485 A1 WO9630485 A1 WO 9630485A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid detergent
composition
isotropic liquid
aqueous alkaline
surfactant
Prior art date
Application number
PCT/GB1996/000644
Other languages
English (en)
Inventor
Michael John Day
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 AU51148/96A priority Critical patent/AU5114896A/en
Publication of WO1996030485A1 publication Critical patent/WO1996030485A1/fr

Links

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.
  • Aqueous isotropic liquids containing surfactant and peroxide often contain ethanol. However, the use of this solvent is undesirable when hydrogen peroxide is present because of the danger of explosion due to the low flashpoint of the ethanol.
  • 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 canposition may also contain a hydrotrope.
  • Useful hydrotropes are stated to be alcohols such as ethanol 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%.
  • Exartple 1 uses a mixture of atrrmonium xylene sulphonate (4%) and ethanol (5.5%) .
  • the level of peroxide is only 0.18% and the pH is 7.1 in this and the other examples in this patent specification. All examples are rich in anionic surfactant.
  • 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 di-ethylene 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.
  • SXS sodium xylene sulphonate
  • 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 alkyl sulphate with a major part of C 12 fatty substituent.
  • the formulations also include ethanol, propane-1,2-diol (propylene glycol) and diethylenetriaminepentamethylene phosphonate.
  • the pH of the formulations is about 7.
  • a concentrated aqueous alkaline isotropic liquid detergent composition with a pH greater than 7.5 comprising a mixture of nonionic surfactant and anionic surfactants and dissolved hydrogen peroxide in an amount by weight in the range 0.2 to 15% characterised in that it also comprises from 5 to 25 % of a hydrotrope selected from the group comprising polyhydric alcohols with a flashpoint greater than 30°C or other alcohols with a flashpoint greater than 30°C or mixtures thereof and the composition is substantially free from ethanol or other Ci- 4 monohydric alcohols.
  • Flashpoint is measured by closed cup methods. It is preferred that the flashpoint of the neat alcohol is greater than 50°C, most preferably greater than 70°C.
  • the anionic co-surfactant may be a linear alkylbenzene sulphonic acid (LAS) .
  • a preferred anionic surfactant is lauryl ether sulphate (LES) .
  • the high flashpoint 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 diethylene glycol monobutyl ether.
  • the high flashpoint hydrotrope is selected from the group comprising hexylene glycol and butyl carbitol, preferably hexylene glycol.
  • the advantage of the cottposition being substantially free from ethanol or other lower C ⁇ monohydric alcohols is that this increases stability and 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.
  • anionic rich means that the amount by weight of nonionic surfactant makes up less than or equal to
  • 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 compositions may contain builder or be unbuilt. If the composition is anionic rich, the total amount of surfactant in the composition preferably lies in the range 20 to 70% by weight, most preferably 30 to 45% for unbuilt anionic rich compositions.
  • Anionic rich compositions may additionally comprise up to 30% of a builder, preferably up to 10% sodium citrate; for built anionic rich compositions the total amount of surfactant in the composition preferably lies in the range 20 to 50%, most preferably 30 to 50% by weight.
  • Preferred nonionic surfactants are alcohol ethoxylates such as C 8- 24 , preferably C 10-16 , alcohols which have been ethoxylated using l to 20 moles, preferably 3 to 12 moles of ethylene oxide per mole of alcohol; alkyl phenol 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 anionic surfactant is a linear alkylbenzene sulphonic acid (LAS) or preferably lauryl ether sulphate (LES) and the total surfactant level lies in the range 35 to 60% by weight.
  • LAS linear alkylbenzene sulphonic acid
  • LES lauryl ether sulphate
  • An alternative or additional hydrotrope may be selected from a group comprising a ⁇ inonium, sodium and potassium salts of toluene, xylene and cumene sulphonate at levels up to 20%, preferably SXS is used.
  • SXS sulfur-sensitive sulfur species
  • the combination of a hydrotrope of this type with a high flashpoint polyol in a composition according to the invention may provide the advantage of reduced pH drift whilst maintaining the high peroxide levels and thereby maintains detergency and stain removal properties of the formulation.
  • the pH of the composition may lie in the range 7.5 to 12, preferably around 9.5.
  • 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 co ⁇ ponents 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 cottposition preferably contains sequestrants.
  • Preferred sequestrants are sodium diethylenetriaminepentamethylene- phosphonate, sold as Dequest 2066 by Monsanto, 2,2' -dipyridylamine
  • DPA 1,2 ' -diaminocyclohexyl tetrakis methylene phosphonic acid.
  • 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 . 15 7E0 primary alcohol ethoxylate ex Cargo Fleet.
  • the anionic surfactant was either MARLON AS3 a _ 0 . ⁇ linear alkylbenzene sulphonic acid ex Huls, or NEOPON LOS 70 a sodium lauryl ether sulphate ex Baxenden chemicals.
  • the initial %H 2 0 2 was 5.0 and the initial pH was about 9.5.
  • a mixed sequestrant system of Dequest 2066 and Dipyridylamine 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.
  • examples each contained 35% total surfactant and were formulated with a 70/30 ratio of nonionic to anionic.
  • the anionic surfactant was LAS.
  • comparative example A the hydrotrope was SXS.
  • the %HA was measured by permanganate titration initially and after storage for specified periods of time at constant temperature. Results are given in Table 2 for storage at 25°C and 37°C.
  • Example 5 is a 45% total surfactant formulation with a 70/30 weight ratio of nonionic to anionic.
  • the hydrotrope is propylene glycol.
  • Comparative example C is the equivalent formulation with SXS for comparison.
  • Examples 6 and 7 contain LES in place of the LAS.
  • Example 6 has 45% total surfactant.
  • Hexylene glycol was used instead of propylene glycol for this example.
  • Example 7 has 40% total surfactant with a 75/25 nonionic/anionic ratio and a mixed hydrotrope 50/50 hexylene glycol/SXS system.
  • %H 2 ⁇ - loss data for 25°C and 37°C extended storage are given in Table 4.

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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 a pour objet une composition de détergent liquide isotrope alcaline aqueuse concentrée. Cette composition comprend un mélange d'agents tensio-actifs non ioniques et d'agents tensio-actifs anioniques, avec un hydrotope sélectionné dans le groupe comprenant des polyalcools dont le point d'inflammabilité est supérieur à 30 °C ou des mélanges de ces derniers. La composition peut être utilisée comme détergent de blanchissage. En outre, elle est sensiblement dépourvue d'éthanol ou d'autres monoalcools C1-4, ce qui augmente sa stabilité et diminue le risque d'explosion d'un mélange d'alcool et de peroxyde à bas point d'inflammabilité.
PCT/GB1996/000644 1995-03-24 1996-03-18 Detergent liquide isotrope alcalin avec du peroxyde WO1996030485A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU51148/96A AU5114896A (en) 1995-03-24 1996-03-18 Alkaline isotropic liquid detergent with peroxide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9506066.1A GB9506066D0 (en) 1995-03-24 1995-03-24 Alkaline isotropic liquid detergent with peroxide
GB9506066.1 1995-03-24

Publications (1)

Publication Number Publication Date
WO1996030485A1 true WO1996030485A1 (fr) 1996-10-03

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ID=10771847

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/000644 WO1996030485A1 (fr) 1995-03-24 1996-03-18 Detergent liquide isotrope alcalin avec du peroxyde

Country Status (3)

Country Link
AU (1) AU5114896A (fr)
GB (1) GB9506066D0 (fr)
WO (1) WO1996030485A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000065011A1 (fr) * 1999-04-22 2000-11-02 Cognis Deutschland Gmbh Detergents pour surfaces dures
US7781388B2 (en) 2006-05-04 2010-08-24 American Sterilizer Company Cleaning compositions for hard to remove organic material

Citations (8)

* 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
EP0482275A1 (fr) * 1990-10-22 1992-04-29 The Procter & Gamble Company Détergents liquides stables contenant un agent de blanchiment
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
EP0619368A1 (fr) * 1993-04-06 1994-10-12 The Procter & Gamble Company Compositions détergentes liquides concentrées

Patent Citations (8)

* 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
EP0482275A1 (fr) * 1990-10-22 1992-04-29 The Procter & Gamble Company Détergents liquides stables contenant un agent de blanchiment
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
EP0619368A1 (fr) * 1993-04-06 1994-10-12 The Procter & Gamble Company Compositions détergentes liquides concentrées

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000065011A1 (fr) * 1999-04-22 2000-11-02 Cognis Deutschland Gmbh Detergents pour surfaces dures
US7781388B2 (en) 2006-05-04 2010-08-24 American Sterilizer Company Cleaning compositions for hard to remove organic material
US7879787B2 (en) 2006-05-04 2011-02-01 American Sterilizer Company Cleaning compositions for hard to remove organic material

Also Published As

Publication number Publication date
AU5114896A (en) 1996-10-16
GB9506066D0 (en) 1995-05-10

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