[go: up one dir, main page]

EP0929657A1 - Wässeriges, strukturiertes flüssigwaschmittel mit aminocarboxylat als sequestiermittel - Google Patents

Wässeriges, strukturiertes flüssigwaschmittel mit aminocarboxylat als sequestiermittel

Info

Publication number
EP0929657A1
EP0929657A1 EP97919048A EP97919048A EP0929657A1 EP 0929657 A1 EP0929657 A1 EP 0929657A1 EP 97919048 A EP97919048 A EP 97919048A EP 97919048 A EP97919048 A EP 97919048A EP 0929657 A1 EP0929657 A1 EP 0929657A1
Authority
EP
European Patent Office
Prior art keywords
acid
sequestrant
electrolyte
liquid detergent
composition
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.)
Withdrawn
Application number
EP97919048A
Other languages
English (en)
French (fr)
Inventor
Shang-Ren Unilever Research Shanghai WU
Lili Faucia Unilever Research BROUWN
Johannes Cornelis Unilever Research van de Pas
Jaap Unilever Research VERHAGEN
Petronnela C. Unilever Research WISSENBURG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0929657A1 publication Critical patent/EP0929657A1/de
Withdrawn legal-status Critical Current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
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0026—Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase

Definitions

  • the present invention relates to aqueous liquids, in particular structured liquids and processes of preparing aqueous liquids.
  • Liquid detergent compositions are well-known m the art and offer several advantages over solid compositions. For example, liquid compositions are easier to measure, to dispense and to dissolve into a laundering liquor and liquid compositions give more confidence to the consumer of being safer and less harsh to the washed or laundered textile and environment than solid compositions. This may be the reason that heavy and light duty laundry liquid detergent products are gaining m popularity ever since their introduction on the market at the expense of powdered detergent products, m particular for coloured fabrics.
  • liquid detergent compositions may suffer from extensive physical instability, chemical instability and/or high viscosity problems as compared to solid detergent compositions and these problems are even more imminent for concentrated aqueous liquids. This is probably due to the high number of possible interactions of ingredients in liquid detergent compositions. Moreover, these interactions will affect not only the stability and viscosity, but also the wash performance.
  • EP 137474 and EP 137475 disclose aqueous prespotting compositions comprising surfactant and chelatmg agent. The compositions are said to have good water-borne and oil- borne stain removal characteristics.
  • EP 267,653 discloses detergent compositions comprising surfactant, builder and biodegradable EDDS which is said to possess excellent stain removal properties.
  • WO 92/06164 discloses the use of polyhydroxy fatty acid amide surfactants in detergent compositions and refers to the use of EDDS as chelatmg agent.
  • WO 94/03553 discloses detergent compositions comprising bleach and EDDS, as a biodegradable bleach stabiliser.
  • WO 94/03554 discloses detergent compositions comprising EDDS, percarbonate and layered silicate. The compositions are said to have benefits on bleachable and enzymatic stain removal even when reduced amounts in total of builder, bleach and chelant are used.
  • WO 94/03572 discloses detergent compositions comprising EDDS and crystalline layered silicate to reduce the deposition of salt encrustations and multi-cycle build up of such encrustations. As indicated in the abstract and disclosed the example, the document relates to granular compositions. The compositions comprise perborate and layered silicate material. WO 94/20599 discloses detergent compositions comprising surfactant and EDDG or HPDDS . The compositions are said to have good stain removal and cleaning performance.
  • Aminocarboxylates have further been disclosed in US 4,663,071 and FR 2,156,080.
  • compositions which have good stain removing performance and environmental profile.
  • the compositions have the advantage of being physically and chemically stable with low viscous and good dispersing properties.
  • the present invention is directed to an aqueous structured liquid detergent composition
  • an aqueous structured liquid detergent composition comprising surfactant material, electrolyte and water, wherein the electrolyte comprises aminocarboxylate sequestrant and builder material.
  • the present invention is further directed to a process of preparing an aqueous structured liquid detergent composition comprising surfactant material, electrolyte and water, wherein the electrolyte comprises aminocarboxylate sequestrant, and wherein the process involves mixing the ingredients whilst keeping the pH above 6 and keeping the temperature below 80°C, preferably after addition of the carboxylate.
  • the present invention is further directed to a process for washing coloured fabric by using a liquid detergent composition comprising an aminocarboxylate sequestrant.
  • liquids preferably only contain safe and non-harsh ingredients. Consequently, liquids of the invention are preferably free of bleach, of layered silicate and contain up to 10o, more preferably up to 5o, most preferably up to 3O, in particular preferred substantially no solvent material.
  • liquids of the present invention which meet one or more of these criteria are particular preferred for the washing of stained, coloured clothes.
  • Isotropic liquids are liquids in which all ingredients are dissolved and, contrary to structured liquids, there is no structure present in isotropic liquid.
  • Structured liquids are well-known in the art. They can either be internally structured, whereby the structure is formed by primary ingredients, preferably by surfactant material, and/or by providing a three dimensional matrix structure using secondary additives, preferably polymers and/or silicate material. Structuring may be brought about to endow properties such as consumer preferred flow properties and/or turbid appearance. Many structured liquids are also capable of suspending particulate solids, such as particles of clay that may be used to provide a fabric-soften g effect to fabrics. Examples of structured liquids without suspended solids are given in US-A- 4,244,840, whilst examples where solid particles are suspended are disclosed in EP-A-160 342; EP-A-38 101;
  • liquids of the invention have a viscosity of from 200 to 2500mPa.s at 21 s "1 at 25°C, more preferably the viscosity is lower than 2000, most preferably the viscosity is lower than 1200.
  • liquids of the invention have a stability of at most 5mm volume phase separation after 1 month storage at room temperature, more preferably at most 2mm, most preferably there is substantially no phase separation.
  • Liquid detergent compositions of the invention comprise surfactant materials.
  • the surfactant material in general, may comprise one or more surfactants, and may be selected from anionic, cationic, nomonic, zwitterionic and amphote ⁇ c species, and (provided mutually compatible) mixtures thereof.
  • Suitable nonionic surfactants include for example aliphatic alcohols, acids, amides or alkyl phenols with alkyl oxides, especially ethylene oxide.
  • Specific nonionic detergent compounds are alkyl ⁇ C c -C 1(t ) primary or secondary linear or branched alcohols with ethylene oxide, and products made by condensation of ethylene oxide with the reaction products of propylene oxide and ethylene-di-amme .
  • the wash performance of liquids is in particular improved when nonionics are included in compositions of the invention.
  • the level of nonionic surfactant materials is from 1 to 40% by weight of the composition, more preferred from 2 to 25%.
  • compositions of the present invention may contain synthetic anionic surfactant ingredients.
  • Suitable anionic surfactants are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms.
  • suitable synthetic anionic surfactant compounds are sodium and potassium C8-C18 alkyl sulphates, sodium and potassium alkyl (C 9 -Co) benzene sulphonates and ether variants thereof.
  • the level of the above mentioned non-soap anionic surfactant materials is from 1 to 40 % by weight of the composition, more preferred from 2 to 25%.
  • an alkali metal soap of a C12-C18 carboxylic acid Preferably, the level of soap is from 1 to 35% by weight of the composition, more preferred from 5 to 25%.
  • surfactant material is present at a level of at least 1° by weight of the composition, more preferred at least 5% by weight, most preferred at least 10% by weight of the composition; and preferably at a level of at most 70% by weight, more preferably at most 40%, most preferably at most 35% by weight.
  • compositions according to the invention comprise anionic and nonionic surfactants, more preferably each at a level of higher than 5% by weight of the composition .
  • compositions according to the invention comprise electrolyte material. It is noted that for the purpose of the invention, the term electrolytes includes sequestrants and builder material.
  • the total level of electrolyte is from 1 to 60% by weight of the composition, more preferably from 5 to 45% by weight, most preferably from 10 to 30% by weight.
  • compositions of the invention comprise an aminocarboxylate sequestrant.
  • aminocarboxylate sequestrant is selected from IN carboxylates, 2N carboxylates, 3N carboxylates and mixtures thereof.
  • aminocarboxylates of the invention are selected from the amino (poly) carboxylates .
  • the sequestrant is selected from aminocarboxylate comprises an -N(MOOCCH-) 2 group and/or an -N-CH 2 (CH 2 COOM) (COOM) group, wherein M is hydrogen, metal (e.g. alkali metal), ammonium or a mixture thereof, wherein the sequestrant is optionally substituted with one or more -SO ⁇ Na groups.
  • the sequestrant of the invention is selected from salts of glutamic acid N,N-d ⁇ acet ⁇ c acid, beta-alanine diacetic acid, ethylenediamine triacetic acid, methyl glycine diacetic acid, diethylenetriamme penta-acetic acid, ethylenediamme-N, N-disuccmic acid, ethylenediamine d ⁇ (sulfosuccmate) and mixtures thereof.
  • the preferred sequestrant is selected from salts of glutamic acid N,N-d ⁇ acet ⁇ c acid, beta-alanme diacetic acid, methyl glycine diacetic acid, ethylenediamme-N, N-disuccmic acid and mixtures thereof.
  • beta-alanme diacetic acid methyl glycine diacetic acid, ethylenediamme-N, N-disuccmic acid and mixtures thereof are preferred.
  • methyl glycine diacetic acid ethylenediamme-N, N-disuccmic acid and mixtures thereof are preferred.
  • S,S ethylenediamme-N, N-disuccmic acid is m particular preferred.
  • the level of the sequestrant of the invention is from 0.1 to 5% by weight of the composition, more preferably from 0.5 to 4% by weight, most preferably from 1 to 3% by weight of the composition.
  • compositions according to the present invention include detergency builder material, some or all of which may be electrolyte.
  • detergency builder material some or all of which may be electrolyte.
  • surfactant materials such as for example soaps, also have builder properties.
  • Examples of phosphorous containing inorganic detergency builders include the water-soluble salts, especially alkali metalpyrophosphates, orthophosphates, polyphosphates and phosphonates .
  • Examples of non-phosphorus-conta ing inorganic detergency builders, when present, include water-soluble alkali metal carbonates, bicarbonates, silicates and crystalline and amorphous alu inosilicates .
  • Examples of organic detergency builders, when present, include the alkaline metal, ammonium and substituted ammonium polyacetates, carboxylates, polycarboxylates, polyacetyl carboxylates and polyhydroxysulphonates .
  • builder material is selected from sodium citrate, sodium tripolyphosphate, zeolite and mixtures thereof.
  • the builder is included level to obtain a Ca 24 concentration in the wash liquor is below 10 "3 mol/1, more preferably below lO "4 mol/1, most preferably below 10 _b mol/1, e.g. from 0 to 10 ""6 mol/1.
  • the level of non-soap builder material is higher than 5%, more preferably higher than 7%, most preferably higher than 8% by weight of the composition and preferably lower than 40%, more preferred lower than 38% by weight of the composition.
  • Saltmg-out electrolyte Compositions according to the invention preferably contain a saltmg-out electrolyte that is able to bring about internal structuring of the liquid, preferably m the form of lamellar droplets of the surfactant material.
  • Saltmg-out electrolyte has the meaning ascribed to in specification EP 79,646, i.e. saltmg-out electrolytes have a lyotropic number of less than 9.5, preferably less than 9.0. Examples are sulphate, citrate, NTA and carbonate.
  • aminocarboxylate of the compositions of the invention is preferably combined with another saltmg-out resistant electrolyte m order to provide stable, low viscous structured liquids.
  • compositions contain from 1% to 60%, especially from 10 to 45% of saltmg-out electrolyte.
  • some saltmg- electrolyte (as defined EP 79,646) may also be included.
  • Liquid compositions of the invention preferably comprise water at a level of from 30 to 60%, more preferably from 32 to 50%, most preferably from 35 to 45% by weight of the composition.
  • liquids of the invention have a pH of from 7 to 10, more preferably of from 7.5 to 9.
  • ingredients already mentioned may also be present, for example lather boosters, lather depressants, inorganic salts such as sodium sulphate, and, usually present very minor amounts, fluorescent agents, perfumes, enzymes such as proteases, amylases and lipases (including Lipolase (Trade Mark) ex Novo) , enzyme stabilisers, anti-redeposition agents, germicides and colorants.
  • lather boosters for example lather boosters, lather depressants, inorganic salts such as sodium sulphate, and, usually present very minor amounts, fluorescent agents, perfumes, enzymes such as proteases, amylases and lipases (including Lipolase (Trade Mark) ex Novo) , enzyme stabilisers, anti-redeposition agents, germicides and colorants.
  • lather boosters for example lather boosters, lather depressants, inorganic salts such as sodium sulphate, and, usually present very minor amounts, fluorescent agents, perfumes, enzymes such as
  • liquid detergent compositions of the invention may be prepared by any method described in the art.
  • An example is to disperse of electrolyte ingredient together with the minor ingredients except for the temperature and pH sensitive ingredients, such as enzymes, perfumes, etc. - if any- water of elevated temperature, followed by the addition of the builder material -if any-, the surfactant material (possibly as a premix) under stirring and thereafter cooling the mixture and adding any pH and temperature sensitive minor ingredients.
  • the present invention is directed to a process of preparing a liquid detergent composition comprising surfactant material, electrolyte and water, wherein the composition has a structure and the electrolyte comprise aminocarboxylate sequestrant and mixtures thereof, by mixing the ingredients and keeping the pH above 6 and the temperature below 80°C.
  • liquids of the invention are prepared by mixing water and electrolytes, including the sequestrant of the invention and any builder material, whereafter a premix of surfactants is added.
  • a premix of surfactants is added.
  • the process has in particular been found to be beneficial when the sequestrant is added before the zeolite builder material, whereafter the active premix is added. This would not be expected m v ew of the presence of the sequestrant which would sequester metal present m the builder material.
  • the tetrasodium salt of glutamic acid N,N-d ⁇ acet ⁇ c acid, the trisodium salt of beta-alanme diacetic acid, the trisodium salt of ethylenediamine triaceticacid, the trisodium salt of methyl glycine diacetic acid, the pentasodium salt of diethylenetriamine penta-acetic acid, the tetrasodium salt of S,S ethylened ⁇ am ⁇ ne-N, N-disuccmic acid, the tetrasodium salt of ethylenediamine tetra-acetic acid and the sodium salt of ethylenediamine di (sulfosuccinate) were incorporated at concentrations between 1 and 4% in the compositions listed Table 1.
  • the ingredients were mixed according the process of the invention, as indicated in the description.
  • Oleic-acid 10 1 4.5 12
  • Trilon ES, Trilon GS and Nervanaid GBS-5 give adequate product characteristics in base formulations 5 and 6.
  • Trilon ES and Nervanaid GBS-5 are preferred over Trilon GS for pourability reasons. Trilon ES and GS are preferred for environmental reasons. S,S EDDS is however the most preferred sequestrant also with respect to stain removal.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Detergent Compositions (AREA)
EP97919048A 1996-09-27 1997-09-04 Wässeriges, strukturiertes flüssigwaschmittel mit aminocarboxylat als sequestiermittel Withdrawn EP0929657A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US722546 1985-04-12
US72254696A 1996-09-27 1996-09-27
PCT/EP1997/004925 WO1998013467A1 (en) 1996-09-27 1997-09-04 Aqueous structured liquid detergent composition comprising aminocarboxylate sequestrant

Publications (1)

Publication Number Publication Date
EP0929657A1 true EP0929657A1 (de) 1999-07-21

Family

ID=24902307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97919048A Withdrawn EP0929657A1 (de) 1996-09-27 1997-09-04 Wässeriges, strukturiertes flüssigwaschmittel mit aminocarboxylat als sequestiermittel

Country Status (5)

Country Link
EP (1) EP0929657A1 (de)
AU (1) AU715749B2 (de)
BR (1) BR9711419A (de)
CA (1) CA2264555A1 (de)
WO (1) WO1998013467A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8110215B2 (en) 2004-04-30 2012-02-07 Kimberly-Clark Worldwide, Inc. Personal care products and methods for inhibiting the adherence of flora to skin
GB0522658D0 (en) * 2005-11-07 2005-12-14 Reckitt Benckiser Nv Composition
ITCR20060016A1 (it) * 2006-06-07 2007-12-08 Silvia Palladini Formulazioni di detersivi a basso impatto ambientale
EP2179022A2 (de) * 2007-08-17 2010-04-28 Rodia Asia Pacific PTE, Limited Strukturierte seifenzusammensetzungen
PL2295530T3 (pl) 2009-09-14 2012-04-30 Procter & Gamble Kompozycja detergentu
ES2399703T3 (es) * 2009-09-15 2013-04-02 The Procter And Gamble Company Composición detergente que comprende una mezcla de quelantes
EP2302026A1 (de) 2009-09-15 2011-03-30 The Procter & Gamble Company Waschmittelzusammensetzung mit Tensidladungspolymeren
US8629093B2 (en) 2010-09-01 2014-01-14 The Procter & Gamble Company Detergent composition comprising mixture of chelants
DE102011084934A1 (de) * 2011-10-21 2013-04-25 Henkel Ag & Co. Kgaa Klarspül- und Geschirrspülmittel
US9453191B2 (en) 2013-06-12 2016-09-27 Conopco, Inc. Pourable detergent composition comprising aryl sulfonate suspended particles
MX2017000777A (es) * 2014-07-17 2017-04-27 Basf Se Composiciones de detergente liquidas y su fabricacion.
WO2022100982A1 (en) * 2020-11-10 2022-05-19 Unilever Ip Holdings B.V. Aqueous alkaline abrasive cleaning composition
DE102022113400A1 (de) 2022-05-27 2023-11-30 Henkel Ag & Co. Kgaa Fließfähige Wasch- und Reinigungsmittel mit verbesserten Eigenschaften

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8711060D0 (en) * 1987-05-11 1987-06-17 Unilever Plc Detergent liquid processing
EP0732394A3 (de) * 1995-03-13 1999-02-03 Unilever N.V. Waschmittelzusammensetzungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9813467A1 *

Also Published As

Publication number Publication date
AU715749B2 (en) 2000-02-10
CA2264555A1 (en) 1998-04-02
WO1998013467A1 (en) 1998-04-02
BR9711419A (pt) 1999-08-24
AU4302197A (en) 1998-04-17

Similar Documents

Publication Publication Date Title
CA2325620C (en) Bleach-containing non-aqueous detergent formulated to control dye transfer and sudsing in high efficiency washing machines
EP2553072B1 (de) Strukturierung von Waschmittelflüssigkeiten mit hydriertem Castoröl
CA1275756C (en) Built non-aqueous liquid laundry detergent compositions
US8629093B2 (en) Detergent composition comprising mixture of chelants
CA2770477C (en) Detergent composition comprising mixture of chelants
IE61938B1 (en) Detergent compositions
AU715749B2 (en) Aqueous structured liquid detergent composition comprising aminocarboxylate sequestrant
CA2910881C (en) Concentrated surfactant composition
WO1998000514A1 (en) Nonaqueous, particulate-containing liquid detergent compositions with surfactant-structured liquid phase
EP2495300A1 (de) Strukturierung von Waschmittelflüssigkeiten mit hydriertem Castoröl
GB2195649A (en) Liquid nonionic laundry detergent composition containing higher alkyl sulphonate or alkyl ether sulphate stabilizer
US4767558A (en) Low phosphate or phosphate free nonaqueous liquid nonionic laundry detergent composition and method of use
AU618344B2 (en) Liquid cleaning products
CA1292656C (en) Low phosphate or phosphate free laundry detergent
CA1334919C (en) Liquid detergent compositions
EP0752466A1 (de) Brausesysteme enthaltende nichtwässrige Waschmittelzusammensetzungen
JPH08509013A (ja) 混合界面活性剤粒子中の第二級（２，３）アルキルサルフェート界面活性剤
EP0833887B1 (de) Nichtwässerige, körnchen enthaltende waschmittelzusammensetzungen
MXPA98000194A (en) Compositions non-aqueous detergents comprising efervescen systems
EP0797656B2 (de) Waschmittelzusammensetzung
US6770615B1 (en) Non-aqueous liquid detergents with water-soluble low-density particles
JP2672642B2 (ja) 液体洗剤組成物
WO2001011003A1 (en) Non-aqueous liquid detergents with water-soluble low-density particles
GB2217727A (en) Liquid cleaning products
MXPA99000110A (en) Compositions non-aqueous detergents containing blanq precursors

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: 19990205

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17Q First examination report despatched

Effective date: 20000124

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20001109