EP1685228B1 - Composition de blanchiment a base d'hypochlorite - Google Patents

Composition de blanchiment a base d'hypochlorite Download PDF

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Publication number
EP1685228B1
EP1685228B1 EP04791015A EP04791015A EP1685228B1 EP 1685228 B1 EP1685228 B1 EP 1685228B1 EP 04791015 A EP04791015 A EP 04791015A EP 04791015 A EP04791015 A EP 04791015A EP 1685228 B1 EP1685228 B1 EP 1685228B1
Authority
EP
European Patent Office
Prior art keywords
hypochlorite
composition
alkali metal
electrolyte
sodium
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.)
Revoked
Application number
EP04791015A
Other languages
German (de)
English (en)
Other versions
EP1685228A1 (fr
EP1685228B8 (fr
Inventor
Parthiv Ripudaman Hindustan Lever Res. Cnt. DAVE
Nikhileshwar Hindustan Lever Res. Cnt. MUKHERJEE
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 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
Publication date
Family has litigation
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Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to PL04791015T priority Critical patent/PL1685228T3/pl
Publication of EP1685228A1 publication Critical patent/EP1685228A1/fr
Application granted granted Critical
Publication of EP1685228B1 publication Critical patent/EP1685228B1/fr
Publication of EP1685228B8 publication Critical patent/EP1685228B8/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/046—Salts
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/044—Hydroxides or bases
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates
    • 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

Definitions

  • the present invention relates to thickened chlorine bleach compositions.
  • Cleaning compositions are used in everyday life for cleaning a large variety of substrates, such as hard surfaces, textiles and soft furnishings.
  • Many cleaning compositions contain bleaching agents, often in combination with surfactants.
  • Such bleach containing compositions are particularly intended for removing coloured stains such as from textiles or hard surfaces, or for hygienic cleaning of particularly hard surfaces.
  • Active chlorine bleaching agents are very popular for this purpose.
  • Typical materials constituting such hard surfaces include ceramic, metals (e.g. stainless steel, chrome-plated materials), stone, wood, vitreous enamel, and polymeric surfaces.
  • compositions comprising bleaching agents. Thickened compositions are easier to dispense in a controlled manner. Also, when the compositions are applied on to surfaces to be cleaned, it is desirable that they are in contact with the surface for a sufficiently long time to enable good cleaning. This is especially important when the compositions are applied underneath horizontal surfaces or to vertical or inclined surfaces such as lavatory rims or bowls. Methods to thicken these compositions include the use of polymers or the incorporation of surfactants in high quantities, both of which are expensive options.
  • US 4,839,077 describes a thickened bleach composition
  • a thickened bleach composition comprising: (i) a bleaching halogen compound, (ii) a polymeric thickener having a molecular weight of 1,000 to 100,000 and comprising a charged monomer and an uncharged monomer such that the resulting polymer has a acid number between 80 to 400 mg KOH/g polymer and (iii) a surfactant system including a bleach-resistant nonionic surfactant and a bleach-resistant anionic surfactant.
  • JP 10/251,687 describes a liquid bleach composition for hard surface cleaning that comprises: (i) 0.1 to 8% of alkali metal hypochlorite salt, (ii) 0.1 to 9% of alkali metal hydroxide, (iii) 0.1 to 5% of anionic surfactant and (iv) 0.1 to 5% of a buffer which is preferably phosphoric acid or its salts or soluble silicic acid salts.
  • US 6,100,228 describes a bleaching gel cleaner and a method of preparing it comprising: (i) an effective amount of a hypochlorite generating compound, (ii) a ternary thickening system comprising (a) alkali metal soap; (b) a hydrotrope consisting of trialkylamine oxides, betaines and mixtures thereof, iii) bleach stable solvent, and (iv) a buffer/electrolyte to stabilize the composition, the balance being water.
  • WO 97/43392 discloses hypochlorite bleaching compositions which may be thickened with polymeric thickeners.
  • hypochlorite bleaching compositions that are thickened using inexpensive and easily available materials.
  • the present invention provides a thickened liquid hypochlorite bleach composition comprising surfactant and alkali metal electrolyte which has sufficient viscosity to be useful for application to a wide range of surfaces, including vertical or inclined surfaces.
  • the thickened liquid bleach compositions comprise water, from 0.1 to 10%w of a hypochlorite salt chosen from sodium and potassium hypochlorite; from 0.5 to 20%w of a surfactant; from 0.1 to 8%w of an electrolyte selected from the group consisting of alkali metal hydroxides, halides, sulphates, carbonates and mixtures thereof, and the compositions comprise at least two different kinds of alkali metal ions, the least prevalent alkali metal ion in the composition being present in a molar amount of at least 10% of the total alkali metal ion content, and wherein polymeric thickening agents are absent in the composition. present in a molar amount of at least 10% of the total alkali metal ion content, and wherein polymeric thickening agents are absent in the composition.
  • the bleaching agent in the thickened bleach compositions of the invention is a hypochlorite salt.
  • the cation in the hypochlorite salt is chosen from sodium and potassium, most preferably sodium.
  • alkali metal hypochlorites in water also include the corresponding alkali metal chloride. This is due to the method of manufacture of the alkali metal hypochlorite that involves reacting an alkali metal hydroxide with chlorine gas to form the corresponding alkali metal hypochlorite and alkali metal chloride. These are often sold as such without further purification and called 'high salt' bleach. For example, if the alkali metal is sodium, the 'high salt' sodium hypochlorite bleach solution also contains sodium chloride.
  • alkali metal hypochlorites which are free of the corresponding chloride.
  • Such products often termed 'low salt' or 'high purity' bleaches, are prepared by reaction of alkali metal hydroxide with hypochlorous acid.
  • a preferred bleaching agent of the present invention is sodium hypochlorite, due to its wide availability and low cost. It is also preferred to use 'high salt' sodium hypochlorite bleach in the present invention as it is more widely and cheaply available compared to the corresponding 'low-salt' solutions.
  • the total amount of alkali metal hypochlorite in the compositions of the invention ranges up to 10%w, preferably from 0.1 to 8%w, more preferably from 1 to 5%w.
  • a surfactant that is compatible with hypochlorite is used in the thickened bleach composition of the invention.
  • anionic surfactants for the invention which may be soap or a non-soap surfactants. It is preferred to use non-soap surfactants.
  • the anionic surfactants may have alkali metal or alkaline earth metal or ammonium or alkanolamine counter ions, or a mixture thereof.
  • anionic surfactants have been named in the prior art to be suitable for use in hypochlorite solutions, including the water-soluble salts of organic sulphuric acid mono-esters and sulphonic acids having in the molecular structure a branched or straight chain alkyl group containing 8-22 C atoms or an aryl or alkylaryl group containing 8-22 C atoms.
  • Such suitable anionic surfactants include alkali metal salt of alkylbenzene-sulphonates, alkyl-glycerylether sulphates (especially ethers of the alcohols derived from coconut oil and tallow), primary and secondary alkyl sulphonates, olefin sulphonates, alkyl sulphates, fatty acid monoglyceride sulphates and mixtures thereof.
  • Particularly suitable anionic surfactants for use in the composition of the invention are ethoxylated alcohol sulphates such as SLES (sodium laurylether sulphate), primary and secondary alkyl sulphates, and mixtures thereof.
  • SLES sodium laurylether sulphate
  • primary and secondary alkyl sulphates and mixtures thereof.
  • surfactants such as nonionic, cationic, amphoteric, or zwitterionic surfactants in the compositions of the invention.
  • the total amount of surfactant in the compositions of the invention ranges from 0.5 to 20%w, preferably from 0.5 to 10%w.
  • Electrolytes used in the thickened bleach compositions of the invention are selected from the group consisting of alkali metal hydroxides, halides, sulphates, carbonates and mixtures thereof. Preferably they are chosen from hydroxides, halides and sulphates, more preferably hydroxides and halides. Among the halides the chlorides are most preferred.
  • the electrolyte is chosen such that in combination with the hypochlorite the total alkali metal ion content of the composition comprises at least two different alkali metals.
  • One preferred way is to combine one alkali metal hypochlorite with least one alkali metal electrolyte with a different cation.
  • An alternatively way is to combine a combination of different alkali metal hypochlorites with one or more electrolytes having one or more alkali metal ions.
  • the least prevalent alkali metal ion in the composition is present in a molar amount of at least 10% of total alkali metal ions.
  • all the components of the composition are chosen such that the total cation content of the composition consists entirely of alkali metal cations.
  • the cations comprise only sodium and potassium
  • a most preferred embodiment of the invention comprises sodium hypochlorite and at least one electrolyte chosen from potassium hydroxide and potassium chloride in such an amount that at least 10% of total molar amount of alkali metal ion is potassium ion.
  • the electrolyte includes agents that ensure that the pH of the thickened bleach composition is at least 11, preferably at least 12.5.
  • the total amount of electrolyte in the composition of the invention ranges from of 0.1 to 8%w, more preferably from 0.1 to 5.0%w.
  • composition of the invention comprises water.
  • composition of the invention may contain other optional ingredients for enhancing performance and/or aesthetics of the composition such as: solvents, abrasives, structurants, colourants, hydrotropes, whiteners, optical brighteners, soil suspending agents and perfumes.
  • compositions according to the invention do not require polymeric thickening agents for further thickening and such agents are therefore absent in the compositions.
  • composition of the invention is a thickened liquid, which for the purposes of this invention includes easily pourable liquids, thick liquids, gels, pastes and mousses.
  • a preferred form is an easily or thick pourable liquid or a gel.
  • compositions comprise only one alkali metal ion.
  • composition corresponding to Comparative Example A was prepared except that 16g of sodium chloride was used instead of the 10g of sodium chloride in the pre-prepared solution.
  • composition corresponding to Comparative Example A was prepared except that 20g of sodium chloride was used instead of the 10g of sodium chloride in the pre-prepared solution.
  • composition corresponding to Comparative Example A was prepared except that 10g of potassium chloride was added instead of sodium chloride.
  • a composition corresponding to Comparative Example B was prepared except that 16g of potassium chloride was added instead of sodium chloride.
  • a composition corresponding to Comparative Example C was prepared except that 20g of potassium chloride was added instead of sodium chloride.
  • Table 1 lists the compositions of Comparative Examples A,B,C and Examples 1,2,3 along with the weight percent of the ingredients. Table 1 also lists the viscosities of the compositions. The data in Table 1 indicate that for the same total electrolyte concentration, when the alkali metal cation associated with the electrolyte is different to the alkali metal cation associated with the alkali metal hypochlorite, there is a synergistic benefit in terms of increased viscosity of the composition.
  • a composition was prepared corresponding to Comparative Example B except that 187g of SLES and 93g of secondary alkyl sulphate (SAS) were used instead of 280g of SLES.
  • SAS secondary alkyl sulphate
  • a composition was prepared corresponding to Comparative Example C except that 187g of SLES and 93g of SAS were used instead of 280g of SLES.
  • a composition was prepared corresponding to Example 2 except that 187g of SLES and 93g of SAS were used instead of 280g of SLES.
  • a composition was prepared corresponding to Example 3 except that 187g of SLES and 93g of SAS were used instead of 280g of SLES.
  • Table 2 lists the compositions of Comparative Examples D and E and Examples 4 and 5 along with the viscosities of the compositions.
  • the data in Table 2 indicates that, for compositions according to the invention, the synergistic benefit in terms of increased viscosity is also obtained when mixtures of surfactants are used.

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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)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (7)

  1. Composition de blanchiment liquide épaissie comprenant de l'eau, un agent de blanchiment à base d'hypochlorite et un tensioactif, caractérisée en ce qu'elle comprend :
    ■ de 0,1 à 10 % en poids d'un sel d'hypochlorite, choisi parmi l'hypochlorite de sodium et l'hypochlorite de potassium ;
    ■ de 0,5 à 20 % en poids d'un tensioactif ;
    ■ de 0,1 à 8 % en poids d'un électrolyte choisi dans le groupe constitué par les hydroxydes, les halogénures, les sulfates, les carbonates et leurs mélanges, de métal alcalin ; et
    dans laquelle la composition comprend au moins deux types différents d'ions de métal alcalin, l'ion de métal alcalin, le moins prédominant étant présent dans la composition en une quantité molaire d'au moins 10 % de la teneur totale en ions de métal alcalin, et dans laquelle les agents épaississants polymères sont absents de la composition.
  2. Composition selon la revendication 1, dans laquelle le sel d'hypochlorite est l'hypochlorite de sodium.
  3. Composition selon l'une quelconque des revendications 1 à 2, dans laquelle le tensioactif comprend un tensioactif anionique choisi parmi les sels solubles dans l'eau de monoesters d'acides sulfuriques organiques et d'acides sulfoniques ayant dans leur structure moléculaire un groupe alkyle à chaîne linéaire ou ramifiée contenant de 8 à 22 atomes de carbone ou un groupe aryle ou alkylaryle contenant de 8 à 22 atomes de carbone.
  4. Composition selon l'une quelconque des revendications 1 à 3, dans laquelle l'électrolyte est choisi parmi les hydroxydes, les chlorures, les sulfates et leurs mélanges de métal alcalin.
  5. Composition selon la revendication 4, dans laquelle le sel d'hypochlorite et l'électrolyte sont choisis parmi les composés à base de sodium et de potassium.
  6. Composition selon la revendication 5, dans laquelle le sel d'hypochlorite est l'hypochlorite de sodium et l'électrolyte est un composé à base de potassium.
  7. Composition selon l'une quelconque des revendications 1 à 6, dans laquelle la quantité totale d'électrolyte dans la composition est comprise dans la plage allant de 0,1 à 5 % en poids.
EP04791015A 2003-11-19 2004-10-29 Composition de blanchiment a base d'hypochlorite Revoked EP1685228B8 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04791015T PL1685228T3 (pl) 2003-11-19 2004-10-29 Podchlorynowa kompozycja bieląca

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1195MU2003 2003-11-19
PCT/EP2004/012254 WO2005049779A1 (fr) 2003-11-19 2004-10-29 Composition de blanchiment a base d'hypochlorite

Publications (3)

Publication Number Publication Date
EP1685228A1 EP1685228A1 (fr) 2006-08-02
EP1685228B1 true EP1685228B1 (fr) 2008-11-12
EP1685228B8 EP1685228B8 (fr) 2009-03-04

Family

ID=34611202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04791015A Revoked EP1685228B8 (fr) 2003-11-19 2004-10-29 Composition de blanchiment a base d'hypochlorite

Country Status (15)

Country Link
EP (1) EP1685228B8 (fr)
JP (1) JP2007511648A (fr)
AR (1) AR046636A1 (fr)
AT (1) ATE414133T1 (fr)
AU (1) AU2004291627B2 (fr)
BR (1) BRPI0416020A (fr)
CA (1) CA2544330A1 (fr)
DE (1) DE602004017774D1 (fr)
ES (1) ES2317063T3 (fr)
MX (1) MXPA06005633A (fr)
MY (1) MY142747A (fr)
PL (1) PL1685228T3 (fr)
RU (1) RU2360955C2 (fr)
WO (1) WO2005049779A1 (fr)
ZA (1) ZA200602877B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9487742B2 (en) 2012-09-10 2016-11-08 The Clorox Company Drain formulation for enhanced hair dissolution
WO2016200343A1 (fr) 2015-06-09 2016-12-15 Hayat Kimya Sanayi Anonim Sirketi Compositions de blanchiment aqueuses, épaissies et transparentes
US10208273B2 (en) 2012-09-10 2019-02-19 The Clorox Company Drain formulation for enhanced hair dissolution

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX352745B (es) 2011-03-18 2017-12-04 Realm Therapeutics Inc Soluciones estabilizadas de acido hipohaloso.
US11452778B2 (en) 2011-03-18 2022-09-27 Urgo Us, Inc. Stabilized hypohalous acid solutions
US9381214B2 (en) 2011-03-18 2016-07-05 Puricore, Inc. Methods for treating skin irritation
US20130216631A1 (en) 2012-02-17 2013-08-22 The Clorox Company Targeted performance of hypohalite compositions thereof
RU2533418C2 (ru) * 2012-10-08 2014-11-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Башкирский государственный университет" Состав отбеливающий, моющий и дезинфицирующий

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185096A (en) * 1991-03-20 1993-02-09 Colgate-Palmolive Co. Aqueous liquid automatic dishwashing detergent composition comprising hypochlorite bleach and bleach stabilizer
JPH07305095A (ja) * 1994-03-16 1995-11-21 Kao Corp 液体漂白剤組成物
CZ368598A3 (cs) * 1996-05-15 1999-05-12 The Procter & Gamble Company Způsob výroby zásadité bělící látky obsahující sloučeniny chloru a bromu
JP2000256697A (ja) * 1999-03-11 2000-09-19 Niitaka Chemical Industry Co Ltd 硬表面用漂白剤組成物
US6420328B1 (en) * 2000-09-25 2002-07-16 Colgate-Palmolive Co. Pink colored, aqueous liquid automatic dishwasher detergent composition
US6258764B1 (en) * 2000-09-25 2001-07-10 Colgate Palmolive Company Pink colored, aqueous liquid automatic dishwasher detergent composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9487742B2 (en) 2012-09-10 2016-11-08 The Clorox Company Drain formulation for enhanced hair dissolution
US10208273B2 (en) 2012-09-10 2019-02-19 The Clorox Company Drain formulation for enhanced hair dissolution
WO2016200343A1 (fr) 2015-06-09 2016-12-15 Hayat Kimya Sanayi Anonim Sirketi Compositions de blanchiment aqueuses, épaissies et transparentes

Also Published As

Publication number Publication date
EP1685228A1 (fr) 2006-08-02
BRPI0416020A (pt) 2007-01-02
EP1685228B8 (fr) 2009-03-04
RU2360955C2 (ru) 2009-07-10
PL1685228T3 (pl) 2010-03-31
ZA200602877B (en) 2007-06-27
ES2317063T3 (es) 2009-04-16
ATE414133T1 (de) 2008-11-15
WO2005049779A1 (fr) 2005-06-02
MXPA06005633A (es) 2006-08-17
JP2007511648A (ja) 2007-05-10
AU2004291627A1 (en) 2005-06-02
RU2006121450A (ru) 2008-01-10
AR046636A1 (es) 2005-12-14
CA2544330A1 (fr) 2005-06-02
MY142747A (en) 2010-12-31
AU2004291627B2 (en) 2007-02-22
DE602004017774D1 (de) 2008-12-24

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