EP1123375B1 - Thickened liquid hydrogen peroxide bleach compositions - Google Patents

Thickened liquid hydrogen peroxide bleach compositions Download PDF

Info

Publication number
EP1123375B1
EP1123375B1 EP99970679A EP99970679A EP1123375B1 EP 1123375 B1 EP1123375 B1 EP 1123375B1 EP 99970679 A EP99970679 A EP 99970679A EP 99970679 A EP99970679 A EP 99970679A EP 1123375 B1 EP1123375 B1 EP 1123375B1
Authority
EP
European Patent Office
Prior art keywords
bleaching composition
alkaline
hydrogen peroxide
composition
alkali metal
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
EP99970679A
Other languages
German (de)
French (fr)
Other versions
EP1123375A1 (en
Inventor
Hedeliza Malonzo Mercado
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.)
Colgate Palmolive Co
Original Assignee
Colgate Palmolive Co
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 Colgate Palmolive Co filed Critical Colgate Palmolive Co
Publication of EP1123375A1 publication Critical patent/EP1123375A1/en
Application granted granted Critical
Publication of EP1123375B1 publication Critical patent/EP1123375B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C11D3/044—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
    • 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
    • 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
    • C11D10/045—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on non-ionic 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/122—Sulfur-containing, e.g. sulfates, sulfites or gypsum
    • 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
    • C11D3/2075—Carboxylic acids-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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/361—Phosphonates, phosphinates or phosphonites
    • 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

Definitions

  • This invention relates to alkaline thickened liquid hydrogen peroxide bleaching compositions. More particularly, this invention relates to such alkaline thickened bleaching compositions which are highly stable in terms of providing a uniform and thickened viscosity which remains stable over time, concomitant with the ability to maintain a stable bleaching activity during extended periods of storage prior to use by the consumer.
  • Hydrogen peroxide compositions have been the focus of much attention in the patent literature in recent years as replacements for or as alternatives to halogen-containing bleaches, often motivated by environmental considerations.
  • interest has focused on alkaline hydrogen peroxide bleaches because of their greater reactivity and enhanced bleaching efficacy as compared to acidic hydrogen peroxide compositions.
  • One of the prime requirements of a bleach intended for domestic use is that the bleaching species remain sufficiently stable to insure good efficacy of the bleach product upon use by the consumer, typically many months after the products manufacture.
  • Hydrogen peroxide solutions are known to provide enhanced bleaching efficacy when used under alkaline conditions. However, stabilization of hydrogen peroxide is particularly troublesome at such alkaline conditions.
  • a thickened composition also serves to limit the rate at which the composition flows or drains from the surfaces to which it is applied.
  • a thickening agent or thickening system in the bleach composition presents problems in formulation: it is often incompatible with peroxide bleach stabilizers which are otherwise effective in non-thickened compositions, or the thickening agents themselves may provide an uneven viscosity to the liquid bleach product and, in general, adversely affect product appearance and flow characteristics depending on variables such as product pH or the non-bleach ingredients, such as electrolyte, present in the composition.
  • EP 376 704 describes hydrogen peroxide aqueous solutions which contain a combination of surfactant and electrolyte to provide thickening and bleach stability.
  • UK patent application GB 2 273 721 describes a thickened bleach composition which comprises an alkaline aqueous solution of hydrogen peroxide containing as the thickening system a mixture of a quaternary long chain alkyl ammonium compound together with a salt of an aromatic sulphonic acid hydrotrope.
  • U.S. Patent 5,736,498 is concerned with alkaline hydrogen peroxide compositions which are thickened with a polymeric thickener having a polyethylene backbone.
  • U.S. Patent 4,900,469 describes a thickened laundry composition comprising a surfactant thickening system, a hydrogen peroxide bleach and a stabilizing system consisting of a chelating agent and an antioxidant.
  • a C 6 -C 18 soap is optionally included to increase viscosity.
  • the present invention provides an alkaline thickened liquid bleaching composition with a viscosity in the range of 80 - 500 mPa.s (80 - 500 cps) comprising, by weight:
  • a method of bleaching fabrics comprising the step of contacting the fabrics to be bleached with an effective amount of the above-described alkaline thickened liquid bleaching composition.
  • the present invention is predicated on the discovery that thickening of a hydrogen peroxide bleach solution can be effectively provided with a surfactant mixture of alkyl dimethylamine oxide and soap as herein described in combination with a weak electrolyte such as an alkali metal sulfate, such that a stable commercially desirable viscosity in the range of from 80 ⁇ 10 -3 to 500 ⁇ 10 -3 m.sec/m 2 [80 to 500 cps] can be readily achieved, preferably from 100 ⁇ 10 -3 to 300 ⁇ 10 -3 m.sec/m 2 [100 to 300 cps] without adversely affecting the stability of the peroxide bleach.
  • a surfactant mixture of alkyl dimethylamine oxide and soap as herein described in combination with a weak electrolyte such as an alkali metal sulfate, such that a stable commercially desirable viscosity in the range of from 80 ⁇ 10 -3 to 500 ⁇ 10 -3 m.sec/m 2 [80 to 500 cps] can
  • the amount of hydrogen peroxide bleach present in the composition of the invention may vary from 0.1% to 10%, by weight, of the total composition.
  • Preferred compositions comprise from 2% to 6%, by weight.
  • the surfactant mixture which forms part of the thickening system is comprised of an alkyl dimethylamine oxide and a neutralized C 6 -C 18 fatty acid, such mixture being present in an amount of from 1.5 to 8%, by weight, preferably from 2% to 4%, by weight.
  • the alkyl group in the dimethylamine oxide surfactant contains from about 11 to 16 carbon atoms.
  • a preferred alkyl group is comprised of a mixture of carbon chain lengths comprising 33% to 43% of C 12 ; from 42% to 52% of C 14 ; and from 4% to 14% of C 16 .
  • Lauryl is a particularly preferred alkyl group.
  • the second component of the surfactant mixture is a C 6 -C 18 fatty acid which is neutralized in-situ by the alkali metal hydroxide in the liquid composition to form a C 6 -C 18 soap.
  • Typical fatty acids include capric acid, lauric acid, any myristic acid, but most preferred is coconut fatty acid which after neutralization forms the coconut lauryl soap.
  • the ratio of the described amine oxide surfactant to the fatty acid soap is generally from 1.5:1 to 6:1, and preferably from 2:1 to 4:1.
  • the third component of the thickening system which serves to stabilize the increased viscosity provided by the surfactant mixture is an alkali metal sulfate such as sodium or potassium or magnesium sulfate.
  • Sodium sulfate is preferred as a source of weak electrolyte which serves to stabilize the viscosity of the composition without adversely affecting the stability of the hydrogen peroxide in solution. It has been found that the presence of strong electrolyte in solution at a level to compliment the surfactant thickening such as Na 2 CO 3 , NaOH, NaHCO 3 cause decomposition of alkaline hydrogen peroxide solution and is, therefore, to be avoided in the present liquid bleaching compositions.
  • the peroxide bleach stabilizer used herein is a polyphosphonate sequestrant.
  • suitable phosphonate stabilizers include sodium or potassium salts of HEDP 1 and EDTMP 2 .
  • Most preferred is the pentasodium salt of diethylenetriamine penta (methylene phosphonic acid), which is available commercially under the trademark Dequest 2066 from the Monsanto Company.
  • An essential ingredient in the present bleaching composition is an alkali metal hydroxide such as sodium or potassium hydroxide, in an amount sufficient to neutralize in-situ the fatty acid ingredient present in the surfactant mixture so as to form the soap.
  • the alkali metal hydroxide also serves to provide an alkaline pH in the liquid bleach composition of from 8 to 9.5, and preferably from 8.2 to 9.2.
  • the amount of alkali metal hydroxide in the composition is generally from 0.10 to 0.5%.
  • the liquid bleach compositions may preferably include a pH buffer such as sodium benzoate which serves to stabilize the pH of the composition and thereby assists in stabilizing the peroxide bleach.
  • a pH buffer such as sodium benzoate which serves to stabilize the pH of the composition and thereby assists in stabilizing the peroxide bleach.
  • the sodium benzoate is present in an amount of from 0 to 2%, preferably from 0,2 to 1,5% by weight.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Manufacturing Of Micro-Capsules (AREA)

Abstract

A thickened liquid bleaching composition is provided comprising hydrogen peroxide; a surfactant mixture comprising alkyl dimethylamine oxide and soap formed by the neutralization of a C6-C18 fatty acid with an alkali metal hydroxide; an electrolyte comprising an alkyl metal sulfate; a phosphonate stabilizer for hydrogen peroxide; and alkali metal hydroxide in an amount sufficient to effect in-situ neutralization of the C6-C18 fatty acid to form the soap and also provide a pH in the range of from about 8 to 9.5.

Description

This invention relates to alkaline thickened liquid hydrogen peroxide bleaching compositions. More particularly, this invention relates to such alkaline thickened bleaching compositions which are highly stable in terms of providing a uniform and thickened viscosity which remains stable over time, concomitant with the ability to maintain a stable bleaching activity during extended periods of storage prior to use by the consumer.
Hydrogen peroxide compositions have been the focus of much attention in the patent literature in recent years as replacements for or as alternatives to halogen-containing bleaches, often motivated by environmental considerations. In particular, interest has focused on alkaline hydrogen peroxide bleaches because of their greater reactivity and enhanced bleaching efficacy as compared to acidic hydrogen peroxide compositions.
One of the prime requirements of a bleach intended for domestic use is that the bleaching species remain sufficiently stable to insure good efficacy of the bleach product upon use by the consumer, typically many months after the products manufacture. Hydrogen peroxide solutions are known to provide enhanced bleaching efficacy when used under alkaline conditions. However, stabilization of hydrogen peroxide is particularly troublesome at such alkaline conditions.
Further, the problem of bleach stability is often exacerbated when formulating a thickened bleach product. Thickening of a pourable liquid bleach is intended to provide an enhanced aesthetic appearance of the product as well as assist the consumer to control dispensing of the liquid bleach product. A thickened composition also serves to limit the rate at which the composition flows or drains from the surfaces to which it is applied. However, the use of a thickening agent or thickening system in the bleach composition presents problems in formulation: it is often incompatible with peroxide bleach stabilizers which are otherwise effective in non-thickened compositions, or the thickening agents themselves may provide an uneven viscosity to the liquid bleach product and, in general, adversely affect product appearance and flow characteristics depending on variables such as product pH or the non-bleach ingredients, such as electrolyte, present in the composition.
EP 376 704 describes hydrogen peroxide aqueous solutions which contain a combination of surfactant and electrolyte to provide thickening and bleach stability.
UK patent application GB 2 273 721 describes a thickened bleach composition which comprises an alkaline aqueous solution of hydrogen peroxide containing as the thickening system a mixture of a quaternary long chain alkyl ammonium compound together with a salt of an aromatic sulphonic acid hydrotrope.
U.S. Patent 5,736,498 is concerned with alkaline hydrogen peroxide compositions which are thickened with a polymeric thickener having a polyethylene backbone.
U.S. Patent 4,900,469 describes a thickened laundry composition comprising a surfactant thickening system, a hydrogen peroxide bleach and a stabilizing system consisting of a chelating agent and an antioxidant. A C6-C18 soap is optionally included to increase viscosity.
Notwithstanding the above-mentioned patent literature and the availability of numerous commercial thickeners intended for liquid compositions, there remains a need in the art for a thickened alkaline liquid bleach composition containing a hydrogen peroxide bleach which is capable of providing long-term bleaching efficacy, and which also contains an effective, environmentally safe and economical thickening system which does not adversely affect the bleaching performance and stability of hydrogen peroxide.
Summary of the Invention
The present invention provides an alkaline thickened liquid bleaching composition with a viscosity in the range of 80 - 500 mPa.s (80 - 500 cps) comprising, by weight:
  • (a) from 0.1% to 10% of hydrogen peroxide;
  • (b) from 1.5% to 8% of a surfactant mixture comprising
  • (i) alkyl dimethylamine oxide; and
  • (ii) soap formed by the in-situ neutralization of a C6-C18 fatty acid with an alkali metal hydroxide; the weight ratio of (i) and (ii) being from 1.5:1 to 6:1;
  • (c) from 0.5% to 5% of an alkali metal sulfate as an electrolyte,
  • (d) from 0.4% to 1% of a phosphonate stabilizer for the hydrogen peroxide;
  • (e) an alkali metal hydroxide in an amount sufficient to effect the in-situ neutralization of the aforesaid C6-C18 fatty acid to form the soap defined in (b) (ii), and also provide a pH in the range of from 8 to 9.5 for the thickened bleaching composition;
  • (f) from 0% to 2% of sodium benzoate; and
  • (g) balance water.
    • In accordance with the method aspect of the invention there is provided a method of bleaching fabrics comprising the step of contacting the fabrics to be bleached with an effective amount of the above-described alkaline thickened liquid bleaching composition.
    The present invention is predicated on the discovery that thickening of a hydrogen peroxide bleach solution can be effectively provided with a surfactant mixture of alkyl dimethylamine oxide and soap as herein described in combination with a weak electrolyte such as an alkali metal sulfate, such that a stable commercially desirable viscosity in the range of from 80·10-3 to 500·10-3 m.sec/m2 [80 to 500 cps] can be readily achieved, preferably from 100·10-3 to 300·10-3 m.sec/m2 [100 to 300 cps] without adversely affecting the stability of the peroxide bleach.
    Detailed Description of the Invention
    The amount of hydrogen peroxide bleach present in the composition of the invention may vary from 0.1% to 10%, by weight, of the total composition. Preferred compositions comprise from 2% to 6%, by weight.
    The surfactant mixture which forms part of the thickening system is comprised of an alkyl dimethylamine oxide and a neutralized C6-C18 fatty acid, such mixture being present in an amount of from 1.5 to 8%, by weight, preferably from 2% to 4%, by weight. The alkyl group in the dimethylamine oxide surfactant contains from about 11 to 16 carbon atoms. A preferred alkyl group is comprised of a mixture of carbon chain lengths comprising 33% to 43% of C12; from 42% to 52% of C14; and from 4% to 14% of C16. Lauryl is a particularly preferred alkyl group.
    The second component of the surfactant mixture is a C6-C18 fatty acid which is neutralized in-situ by the alkali metal hydroxide in the liquid composition to form a C6-C18 soap. Typical fatty acids include capric acid, lauric acid, any myristic acid, but most preferred is coconut fatty acid which after neutralization forms the coconut lauryl soap.
    The ratio of the described amine oxide surfactant to the fatty acid soap is generally from 1.5:1 to 6:1, and preferably from 2:1 to 4:1.
    The third component of the thickening system which serves to stabilize the increased viscosity provided by the surfactant mixture is an alkali metal sulfate such as sodium or potassium or magnesium sulfate. Sodium sulfate is preferred as a source of weak electrolyte which serves to stabilize the viscosity of the composition without adversely affecting the stability of the hydrogen peroxide in solution. It has been found that the presence of strong electrolyte in solution at a level to compliment the surfactant thickening such as Na2CO3, NaOH, NaHCO3 cause decomposition of alkaline hydrogen peroxide solution and is, therefore, to be avoided in the present liquid bleaching compositions.
    The peroxide bleach stabilizer used herein is a polyphosphonate sequestrant. Examples of suitable phosphonate stabilizers include sodium or potassium salts of HEDP1 and EDTMP2. Most preferred is the pentasodium salt of diethylenetriamine penta (methylene phosphonic acid), which is available commercially under the trademark Dequest 2066 from the Monsanto Company.
    An essential ingredient in the present bleaching composition is an alkali metal hydroxide such as sodium or potassium hydroxide, in an amount sufficient to neutralize in-situ the fatty acid ingredient present in the surfactant mixture so as to form the soap. The alkali metal hydroxide also serves to provide an alkaline pH in the liquid bleach composition of from 8 to 9.5, and preferably from 8.2 to 9.2. The amount of alkali metal hydroxide in the composition is generally from 0.10 to 0.5%.
    The liquid bleach compositions may preferably include a pH buffer such as sodium benzoate which serves to stabilize the pH of the composition and thereby assists in stabilizing the peroxide bleach. The sodium benzoate is present in an amount of from 0 to 2%, preferably from 0,2 to 1,5% by weight.
    Other materials, such as colorants, perfumes, germicides may also be added in minor amounts, if desired.

    Claims (13)

    1. An alkaline thickened liquid bleaching composition with a viscosity in the range of 80.10-3 to 500.10-3 N.sec/m2 (80-500 cps) comprising, by weight:
      (a) from 0.1% to 10% of hydrogen peroxide;
      (b) from 1.5% to 8% of a surfactant mixture comprising
      (i) alkyl dimethylamine oxide: and
      (ii) soap formed by the in-situ neutralization of a C6-C18 fatty acid with an alkali metal hydroxide, the weight ratio of (i) and (ii) being from 1.5:1 to 6.1;
      (c) from 0.5% to 5% of an alkali metal sulfate as an electrolyte;
      (d) from 0.4% to 1% of a phosphonate stabilizer for the hydrogen peroxide;
      (e) an alkali metal hydroxide in an amount sufficient to effect the in-situ neutralization of the aforesaid C6-C18 fatty acid to form the soap defined in (b) (ii), and also provide a pH in the range of from 8 to 9.5 for the thickened bleaching composition;
      (f) from 0% to 2% of sodium benzoate; and
      (g) balance water
    2. An alkaline thickened bleaching composition as in claim 1 wherein the amount of hydrogen peroxide is from 2% tot 6%.
    3. An alkaline thickened bleaching composition as in claim 1 wherein the amount of said surfactant mixture is from 2% to 4% by weight, of the composition, and the ratio of (i) to (ii) is from 2:1 to 4:1.
    4. An alkaline thickened bleaching composition as in claim 1 where the alkyl group in the alkyl dimetylamineoxide is comprised of a mixture of carbon chain lengths consisting essentially of from 33% to 43% of C12; from 42% to 52% of C14; and from 4% to 14% of C16.
    5. An alkaline thickened bleaching composition as in claim 4 wherein the amine oxide surfactant is lauryl dimethyl amine oxide.
    6. An alkaline thickened bleaching composition as in claim 1 wherein the soap is a coco lauryl soap formed by the neutralization of coco fatty acid with said alkali metal hydroxide.
    7. An alkaline thickened bleaching composition as in claim 1 wherein said electrolyte is sodium or potassium sulfate.
    8. An alkaline thickened bleaching composition as in claim 1 wherein said phosphonate stabilizer is the pentasodium salt of diethylenetriamine penta (methylene phosphonic acid).
    9. An alkaline thickened bleaching composition as in claim 1 wherein the pH of the composition is from 8.2 to 9.2.
    10. An alkaline thickened bleaching composition as in claim 1 which contains sodium benzoate in an amount of from 0.2% to 1.5% by weight.
    11. An alkaline thickened bleaching composition as in claim 1 which is characterized by being substantially free of an electrolyte other than that defined in (c).
    12. A method of bleaching fabrics comprising the step of contacting the fabrics to be bleached with an effective amount of the alkaline thickened liquid bleaching composition defined in claim 1.
    13. A method as in claim 12 wherein the soap is a coco lauryl soap formed by the neutralization of coco fatty acid with said alkali metal hydroxide.
    EP99970679A 1998-10-22 1999-10-21 Thickened liquid hydrogen peroxide bleach compositions Expired - Lifetime EP1123375B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    US17768898A 1998-10-22 1998-10-22
    US177688 1998-10-22
    PCT/US1999/024910 WO2000023555A1 (en) 1998-10-22 1999-10-21 Thickened liquid hydrogen peroxide bleach compositions

    Publications (2)

    Publication Number Publication Date
    EP1123375A1 EP1123375A1 (en) 2001-08-16
    EP1123375B1 true EP1123375B1 (en) 2005-04-20

    Family

    ID=22649583

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99970679A Expired - Lifetime EP1123375B1 (en) 1998-10-22 1999-10-21 Thickened liquid hydrogen peroxide bleach compositions

    Country Status (8)

    Country Link
    EP (1) EP1123375B1 (en)
    AT (1) ATE293675T1 (en)
    AU (1) AU1226800A (en)
    BR (1) BR9914702A (en)
    CA (1) CA2347430A1 (en)
    DE (1) DE69924859T2 (en)
    DK (1) DK1123375T3 (en)
    WO (1) WO2000023555A1 (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10039031A1 (en) * 2000-08-10 2002-02-28 Henkel Ecolab Gmbh & Co Ohg Paste-like peracids
    DE102005000955B4 (en) * 2005-01-07 2007-08-30 Henkel Kgaa Liquid bleach composition
    DE102006029344A1 (en) * 2006-06-23 2007-12-27 Henkel Kgaa Dental treatment agent with enhanced bleaching effect

    Family Cites Families (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4900469A (en) * 1986-10-21 1990-02-13 The Clorox Company Thickened peracid precursor compositions
    GB8830296D0 (en) * 1988-12-28 1989-02-22 Unilever Plc Bleaching composition
    DE3906044A1 (en) * 1989-02-27 1990-08-30 Henkel Kgaa BLEACHING LIQUID DETERGENT
    JPH04372695A (en) * 1991-06-20 1992-12-25 Kao Corp Bleaching agent and bleach detergent composition
    JP2896724B2 (en) * 1991-12-19 1999-05-31 日本パーオキサイド株式会社 Bleaching composition
    GB2273721B (en) * 1992-12-24 1996-05-01 Jeyes Group Plc Bleaches
    GB9319943D0 (en) * 1993-09-28 1993-11-17 Solvay Interox Ltd Thickened compositions
    GB9804068D0 (en) * 1998-02-27 1998-04-22 Mcilroy Andrew Bleach stabiliser

    Also Published As

    Publication number Publication date
    EP1123375A1 (en) 2001-08-16
    BR9914702A (en) 2001-07-10
    ATE293675T1 (en) 2005-05-15
    AU1226800A (en) 2000-05-08
    DE69924859D1 (en) 2005-05-25
    CA2347430A1 (en) 2000-04-27
    DE69924859T2 (en) 2006-02-23
    WO2000023555A1 (en) 2000-04-27
    DK1123375T3 (en) 2005-08-15

    Similar Documents

    Publication Publication Date Title
    FI89721C (en) FLYTANDE TVAETTMEDELKOMPOSITION INNEHAOLLANDE FAST PEROXIBLEKNINGSMEDEL
    AU2007317613B2 (en) Liquid detergent formulation with hydrogen peroxide
    US4642198A (en) Liquid bleaching compositions
    US5869440A (en) Peroxide activation method and peroxide composition
    CA2015728C (en) Thickened hypochlorite bleach solution and method of use
    EP0737242B1 (en) Thickened alkaly metal hypochlorite compositions
    US4828747A (en) Suspending system for insoluble peroxy acid bleach
    JPH0558480B2 (en)
    GB2286603A (en) Thickened alkaline peroxide bleaches
    EP0845526A2 (en) Cleaning, disinfecting and bleaching composition
    US5559090A (en) Stable, hydrogen peroxide-containing bleaching compositions
    JPH02227498A (en) Bleaching composition
    CA1228453A (en) Bleaching compositions
    CA1303453C (en) Cleaning compositions
    CA2159821A1 (en) Lavatory blocks containing active oxygen
    AU2615295A (en) Aqueous bleaching compositions comprising peroxy carboxylic acids
    US5804545A (en) Stable alkaline chlorine compositions
    EP1123375B1 (en) Thickened liquid hydrogen peroxide bleach compositions
    MXPA97003841A (en) Thickening compositions thickenes, method of use and procedure to make mys
    AU9411998A (en) Detergents, cleaning compositions and disinfectants comprising chlorine-active substances and fattyacid alkyl ester ethoxylates
    JP2663180B2 (en) Viscosity lowering inhibitor and liquid bleach composition containing said inhibitor
    US5914304A (en) Bleaching compositions
    MXPA01003982A (en) Thickened liquid hydrogen peroxide bleach compositions
    ES2297366T3 (en) LIQUID WHITENING COMPOSITIONS.
    WO1996030483A1 (en) Alkaline isotropic liquid detergent with peroxide

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    17P Request for examination filed

    Effective date: 20010420

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    AX Request for extension of the european patent

    Free format text: AL;LT;LV;MK;RO PAYMENT 20010420;SI

    17Q First examination report despatched

    Effective date: 20030729

    GRAP Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOSNIGR1

    GRAS Grant fee paid

    Free format text: ORIGINAL CODE: EPIDOSNIGR3

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    AX Request for extension of the european patent

    Extension state: RO

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: NL

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050420

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

    Effective date: 20050420

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050420

    Ref country code: BE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050420

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: EP

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FG4D

    REF Corresponds to:

    Ref document number: 69924859

    Country of ref document: DE

    Date of ref document: 20050525

    Kind code of ref document: P

    REG Reference to a national code

    Ref country code: SE

    Ref legal event code: TRGR

    REG Reference to a national code

    Ref country code: DK

    Ref legal event code: T3

    Ref country code: CH

    Ref legal event code: NV

    Representative=s name: E. BLUM & CO. PATENTANWAELTE

    REG Reference to a national code

    Ref country code: GR

    Ref legal event code: EP

    Ref document number: 20050402270

    Country of ref document: GR

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: PT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050920

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051021

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051021

    Ref country code: CY

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20051021

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: MC

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051031

    Ref country code: LU

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051031

    NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    ET Fr: translation filed
    26N No opposition filed

    Effective date: 20060123

    GBPC Gb: european patent ceased through non-payment of renewal fee

    Effective date: 20051021

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: MM4A

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PFA

    Owner name: COLGATE-PALMOLIVE COMPANY

    Free format text: COLGATE-PALMOLIVE COMPANY#300 PARK AVENUE#NEW YORK, N.Y. 10022 (US) -TRANSFER TO- COLGATE-PALMOLIVE COMPANY#300 PARK AVENUE#NEW YORK, N.Y. 10022 (US)

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DK

    Payment date: 20140924

    Year of fee payment: 16

    Ref country code: GR

    Payment date: 20140929

    Year of fee payment: 16

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DE

    Payment date: 20141028

    Year of fee payment: 16

    Ref country code: SE

    Payment date: 20141007

    Year of fee payment: 16

    Ref country code: CH

    Payment date: 20141027

    Year of fee payment: 16

    Ref country code: FR

    Payment date: 20140924

    Year of fee payment: 16

    Ref country code: FI

    Payment date: 20141002

    Year of fee payment: 16

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: AT

    Payment date: 20140925

    Year of fee payment: 16

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 69924859

    Country of ref document: DE

    REG Reference to a national code

    Ref country code: DK

    Ref legal event code: EBP

    Effective date: 20151031

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

    Ref country code: SE

    Ref legal event code: EUG

    REG Reference to a national code

    Ref country code: AT

    Ref legal event code: MM01

    Ref document number: 293675

    Country of ref document: AT

    Kind code of ref document: T

    Effective date: 20151021

    REG Reference to a national code

    Ref country code: GR

    Ref legal event code: ML

    Ref document number: 20050402270

    Country of ref document: GR

    Effective date: 20160506

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: CH

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20151031

    Ref country code: GR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20160506

    Ref country code: LI

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20151031

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20160503

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: ST

    Effective date: 20160630

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: AT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20151021

    Ref country code: SE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20151022

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20151102

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DK

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20151031

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FI

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20151021