WO2019008035A1 - Laundry cleaning composition - Google Patents

Laundry cleaning composition Download PDF

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Publication number
WO2019008035A1
WO2019008035A1 PCT/EP2018/068089 EP2018068089W WO2019008035A1 WO 2019008035 A1 WO2019008035 A1 WO 2019008035A1 EP 2018068089 W EP2018068089 W EP 2018068089W WO 2019008035 A1 WO2019008035 A1 WO 2019008035A1
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Prior art keywords
preferably
wt
selected
cleaning composition
laundry cleaning
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PCT/EP2018/068089
Other languages
French (fr)
Inventor
Stephen Norman Batchelor
Catherine Breffa
Jan DIEDERICHS
Kevin James MUTCH
Steffen ROMANSKI
Carsten Schaefer
Original Assignee
Unilever Plc
Unilever N.V.
Conopco, Inc., D/B/A Unilever
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Priority to EP17180337 priority
Application filed by Unilever Plc, Unilever N.V., Conopco, Inc., D/B/A Unilever filed Critical Unilever Plc
Publication of WO2019008035A1 publication Critical patent/WO2019008035A1/en

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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3703Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3707Polyethers, e.g. polyalkyleneoxides
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/37Mixtures of compounds all of which are anionic
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/83Mixtures of non-ionic with anionic compounds
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005Other compounding ingredients characterised by their effect
    • C11D3/0036Soil deposition preventing compositions; Antiredeposition agents
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/38Products with no well-defined composition, e.g. natural products
    • C11D3/386Preparations containing enzymes, e.g. protease, amylase
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40Dyes ; Pigments
    • C11D3/42Brightening agents ; Blueing agents
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50Perfumes
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/04Carboxylic acids or salts thereof
    • C11D1/06Ether- or thioether carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29Sulfates of polyoxyalkylene ethers
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/34Derivatives of acids of phosphorus
    • C11D1/345Phosphates; Phosphites
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38Cationic compounds
    • C11D1/52Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
    • C11D1/528Carboxylic amides (R1-CO-NR2R3), where at least one of the chains R1, R2 or R3 is interrupted by a functional group, e.g. a -NH-, -NR-, -CO-, or -CON- group

Abstract

The invention provides a laundry cleaning composition comprising:- (i) from 0.2 to 20 wt.% of an alkoxylated dispersant of the following structure (F1): wherein: X is selected from: ethoxy; and mixtures of ethoxy and propoxy groups, wherein the number of ethoxy groups is greater than the number of propoxy groups, and wherein n is from 6 to 70; m is selected from: 2 and 3; R1 is selected from: branched and linear C8 to C20 alkyl chains, uncharged aryl groups; and, uncharged alkyl-aryl groups, wherein the alkyl group of the alkyl-aryl is a saturated linear or branched C1 to C3; wherein the alkyl group of the alkyl-aryl is a saturated linear or branched C1 to C3; T is selected from: H; CH3; SO3 -; CH2COO -; PO3 2-; C2H5; n-propyl, i-propyl; n-butyl; t-butyl; and, sulfosuccinate; Y is selected from O and NH; (ii) from 0 to 50 wt.% surfactant, other than the alkoxylated dispersant; and (iii) an active ingredient selected from one or more of the following: from 0.001 to 3 wt.% perfume; from 0.0001 to 0.5 wt.% of fluorescent agent; and, from 0.0001 wt.% to 0.1 wt.% of an enzyme; and to a domestic method of treating a textile comprising treatment of the textile with an aqueous liquor comprising said alkoxylated dispersant.

Description

LAUNDRY CLEANING COMPOSITION

Field of Invention

The present invention concerns a laundry cleaning composition.

Background of the Invention

There is a desire to use less water in the domestic laundering of clothes. This may be achieved by reducing the number of water rinses done after the initial washing. Reducing the number of rinses increases the redeposition of soil removed in the wash, thereby reducing the overall cleaning. The problem is exacerbated by the presence of human sebum on garments and in the wash liquor, which serves to enhance the deposition of soil in the wash. There is a need for improved dispersants to prevent the deposition of soil present in the wash liquor onto the fabric. Such ingredients are preferably

biodegradable and increase stain removal.

Summary of the Invention

There is a need for technologies to reduce redeposition and enhance cleaning in domestic laundry products. We have found that selected alkoxylated dispersants (AD) when incorporated into laundry detergents enhance whiteness and brightness of garments during domestic laundry.

In a first aspect the present invention provides a laundry cleaning composition

comprising:

(i) from 0.2 to 20 wt.%, preferably 0.5 to 12 wt.%, most preferably 1 to 10 wt.% of an alkoxylated dispersant of the following structure:

Figure imgf000003_0001

wherein: X is selected from: ethoxy; and mixtures of ethoxy and propoxy groups, wherein the number of ethoxy groups is greater than the number of propoxy groups, and wherein n is from 6 to 70;

m is selected from: 2 and 3;

Ri is selected from: branched and linear C8 to C20 alkyl chains, uncharged aryl groups; and, uncharged alkyl-aryl groups wherein the alkyl group of the alkyl-aryl is a saturated linear or branched C1 to C3;

T is selected from: H; CH3; S03 "; ChbCOO-; PO32"; C2H5; n-propyl, i-propyl; n-butyl; t-butyl; and, sulfosuccinate;

Y is selected from O and NH; from 0 to 50 wt.% surfactant, other than the alkoxylated dispersant; and, an active selected from one or more of the following: from 0.001 to 3 wt.% perfume; from 0.0001 to 0.5 wt.% of fluorescent agent; and, from 0.0001 wt.% to 0.1 wt% of an enzyme.

Preferably Ri is selected from C12 to C18 linear alkyl chains; and benzyl and phenylethyl in the alkoxylated dispersant structure.

Most preferably Ri is selected from C12 to C18 linear alkyl chains.

Preferably T is not H in the alkoxylated dispersant structure.

Preferably X is ethoxy in the alkoxylated dispersant structure.

Preferably n, the mole average number of alkoxy groups, is from 6 to 40, more preferably from 9 to 30, most preferably from 10 to 20 in the alkoxylated dispersant structure.

Preferably T is CH3 in the alkoxylated dispersant structure.

Preferably Y is O.

Preferably the alkoxylated dispersant is selected from:

Figure imgf000005_0001

A preferred laundry cleaning composition comprises surfactant, other than the alkoxylated dispersant, at a level of from 4 to 40 wt.%, more preferably from 4 to 35 wt.%, most preferably from 6 to 30 wt.%.

Preferably the surfactant, other than the alkoxylated dispersant, comprises anionic and/or non-ionic surfactants. More preferably the weight fraction of non-ionic surfactant to anionic surfactant is from 0 to 0.3. This means that non-ionic surfactant can be present (or it may be absent if the weight fraction is 0), but if non-ionic surfactant is present, then the weight fraction of the non-ionic surfactant is preferably at most 30% of the total weight of anionic surfactant + non-ionic surfactant, wherein the alkoxylated dispersant is not considered a surfactant as defined herein.

Preferably the anionic surfactant is selected from: linear alkyl benzene sulphonates; alkyl sulphates; alkyl ether sulphates; alkyl ether carboxylates; and mixtures thereof. If a non-ionic surfactant is present, then preferably the non-ionic surfactant is an alcohol ethoxylate, more preferably an C10-C18 alcohol ethoxylate having an average of 3-10 moles of ethylene oxide, most preferably an C12-C15 alcohol ethoxylate having an average of 5-9 moles of ethylene oxide. The laundry cleaning composition is preferably an aqueous laundry liquid detergent composition. Preferably the pH of the aqueous liquid detergent composition is from 6 to 8.5, more preferably from 6.5 to 7.5, even more preferably from 6.8 to 7.2, most preferably 7.0. Preferably the active ingredient is an enzyme and comprises one or more of the following: proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof. More preferably the enzyme is a protease, most preferably a subtilase type serine protease.

In a second aspect, the invention provides a domestic method of treating a textile, the method comprising the steps of: (i) treating a textile with an aqueous solution of the alkoxylated dispersant as defined in the first aspect of the invention;

the aqueous solution comprising from 10 ppm to 5000 ppm, preferably from 100 ppm to 1000 ppm, of the alkoxylated dispersant as defined herein; and, 0 to 6 g/L, preferably from 0.5 to 6 g/L, more preferably from 1 to 5 g/L of a surfactant, other than the alkoxylated dispersant; and,

(ii) optionally rinsing and drying the textile;

wherein in the method, one or more of an active ingredient selected from perfume, fluorescent agent and enzyme is present in the aqueous solution of the alkoxylated dispersant,

wherein if present, the level of the perfume in the aqueous solution is from 0.1 to 100 ppm; preferably from 1 to 10ppm.

wherein if present, the level of the fluorescent agent in the aqueous solution is from 0.0001 g/l to 0.1 g/L, preferably from 0.001 to 0.02 g/L; and,

wherein if present, the level of the enzyme in the aqueous solution is from 0.01 to 10ppm, preferably 0.05 to 1 ppm.

In the method aspects of the present invention the surfactant used is preferably as preferred for the composition aspects of the present invention.

Domestic methods are preferably conducted in a domestic washing machine or by hand washing. The temperature of the wash is preferably from 285 to 335 degrees Kelvin.

The textile is preferably an item of used clothing, bedding or table cloth. Preferred items of clothing are worn cotton containing shirts, trousers, underwear and jumpers. Detailed Description of the Invention

Alkoxylated Dispersant

The alkoxylated dispersant has the following structure:

Figure imgf000007_0001

wherein:

X is selected from: ethoxy; and mixtures of ethoxy and propoxy groups where the number of ethoxy groups is greater than the number of propoxy groups, and wherein n is from 6 to 70;

T is selected from: H; CH3; S03 "; ChbCOO-; PO32"; C2H5; n-propyl, i-propyl; n-butyl; t-butyl; and, sulfosuccinate; preferably T is not H, most preferably T is CH3.

The value m is selected from 2 and 3, and is preferably 2.

The alkoxylated dispersant is preferably formed as a reaction product of trimellitic anhydride or pyromellitic dianhydride with a polyether of the form T-(X)n-NH2 and alcohol of the form F -OH, where Ri is selected from: branched and linear C8 to C20 alkyl chains, uncharged aryl groups; and, uncharged alkyl-aryl groups wherein the alkyl group of the alkyl-aryl is a saturated linear or branched C1 to C3.

The benzene ring may be substituted by further uncharged organic groups, for example methyl, ethyl, methoxy, ethoxy, CI, NO2. When ArOH is an aromatic alcohol, phenol, for example may be used in the reaction. Preferably the trimetalitc anhydride or

pyrometallitic anhydride is reacted with the polyether T-(X)n-NH2, then the F -OH.

Preferably the trimetalitc anhydride or pyrometallitic anhydride is reacted with 1 mole equivalent of the polyether, T-(X)n-NH2, then the F -OH.

The value n is the mole average number of alkoxyl groups. The value of n may be measured using NMR. The value of n is from 6 to 70, preferably 6 to 40, more preferably 9 to 30. Indeed the value of n may be individually 9, 10, 1 1 , 12, 13, 14; 15; 16; 17; 18; 19; 20; 21 ; 22; 23; 24; 25; 26; 27; 28; 29, or 30. Most preferably the value of n may be from 10 to 20. X is selected from OCH2CH2 (ethoxy) and OCH(CH3)CH2 (propoxy) and mixtures thereof, wherein if a mixture, then the number of ethoxy groups is greater than the number of propoxy groups. If X comprises propoxy groups then preferably the mole ratio of ethoxy/propoxy is greater than 2, more preferably greater than 5.

If X is a mixture of ethoxy and propoxy groups, then they may distributed blockwise, alternatively, periodically and/or statistically.

Preferably X comprises at least one mole of propoxy groups and the mole ratio of ethoxy/propoxy is greater than 5. In the context of the current invention the alkoxylated dispersant is not considered a surfactant and does not contribute numerically to the surfactant as defined herein.

Sulfosuccinate has the structure:

Figure imgf000008_0001

The alkoxylated dispersant prevents the deposition of soil present in the wash liquor onto the fabric. The alkoxylated dispersant can also increase stain removal.

Active Ingredient

The laundry cleaning composition comprises an active ingredient selected from one or more of the following: from 0.001 to 3 wt.% perfume; from 0.0001 to 0.5 wt.% of fluorescent agent; and, from 0.0001 wt.% to 0.1 wt.% of an enzyme.

Contemplated enzymes include proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof. Preferably the enzyme is selected from: proteases, alpha-amylases; cellulases and lipases, or mixtures thereof. More preferably the enzyme is a protease, more preferably a subtilase type serine protease. Preferred perfumes and fluorescent agents are described herein.

Surfactant

In the context of the current invention the alkoxylated dispersant is not considered a surfactant and does not contribute numerically to the surfactant as defined herein.

The laundry composition may comprise anionic and non-ionic surfactant (which includes a mixture of the same).

The surfactant is present at a level of from 0 to 50 wt.%. This means that surfactant need not be present, but it is preferred that it is present.

Preferred laundry cleaning compositions comprise surfactant at a level of from 4 to 40 wt.%, more preferably from 4 to 35 wt.%, most preferably from 6 to 30 wt.%. Preferably the surfactant comprises anionic and/or non-ionic surfactants.

Suitable nonionic and anionic surfactants may be chosen from the surfactants described "Surface Active Agents" Vol. 1 , by Schwartz & Perry, Interscience 1949, Vol. 2 by Schwartz, Perry & Berch, Interscience 1958, in the current edition of "McCutcheon's Emulsifiers and Detergents" published by Manufacturing Confectioners Company or in "Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981 or in Anionic Surfactants: Organic Chemistry edited by Helmut W. Stache (Marcel Dekker 1996).

Suitable anionic detergent compounds which may be used are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher alkyl radicals.

Examples of suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher Cs to Cie alcohols, produced for example from tallow or coconut oil, Alkyi ether carboxylic acids; sodium and potassium alkyi Cg to C20 benzene sulphonates, particularly sodium linear secondary alkyi C10 to Ci5 benzene sulphonates; and sodium alkyi glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.

The anionic surfactant is preferably selected from: linear alkyi benzene sulphonate; alkyi sulphates; alkyi ether sulphates; alkyi ether carboxylates; soaps; alkyi (preferably methyl) ester sulphonates, and mixtures thereof.

Preferred anionic surfactants are selected from: linear alkyi benzene sulphonate; alkyi sulphates; alkyi ether sulphates and mixtures thereof. Preferably the alkyi ether sulphate is a C12-C14 n-alkyl ether sulphate with an average of 1 to 3EO (ethoxylate) units. Sodium lauryl ether sulphate is particularly preferred (SLES). Preferably the linear alkyi benzene sulphonate is a sodium Cn to C15 alkyi benzene sulphonates. Preferably the alkyi sulphates is a linear or branched sodium C12 to C18 alkyi sulphates. Sodium dodecyl sulphate is particularly preferred, (SDS, also known as primary alkyi sulphate).

Preferably two or more anionic surfactant are present, for example linear alkyi benzene sulphonate together with an alkyi ether sulphate.

Most preferably the anionic surfactant is selected from: linear alkyi benzene sulphonates; alkyi sulphates; alkyi ether sulphates; and mixtures thereof. The composition may comprise anionic and/or non-ionic surfactants.

Preferably the weight fraction of non-ionic surfactant to anionic surfactant is from 0 to 0.3. This means that non-ionic surfactant can be present (or it may be absent if the weight fraction is 0), but if non-ionic surfactant is present, then the weight fraction of the non- ionic surfactant is preferably at most 30% of the total weight of anionic surfactant + non- ionic surfactant.

Suitable nonionic detergent compounds which may be used include, in particular, the reaction products of compounds having an aliphatic hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids or amides, especially ethylene oxide either alone or with propylene oxide. Specific nonionic detergent compounds are the condensation products of aliphatic Cs to Cie primary or secondary linear or branched alcohols with ethylene oxide.

If a non-ionic surfactant is present, then most preferably the non-ionic surfactant is an alcohol ethoxylate, more preferably a C10-C18 alcohol ethoxylate having an average of 3- 10 moles of ethylene oxide, most preferably an C12-C15 alcohol ethoxylate having an average of 5-9 moles of ethylene oxide.

Preferably the surfactants used are saturated.

Also applicable are surfactants such as those described in EP-A-328 177 (Unilever), which show resistance to salting-out, the alkyl polyglycoside surfactants described in A-070 074, and alkyl monoglycosides. Cationic Compound

The surfactant may comprise a cationic surfactant

Most preferred are quaternary ammonium compounds. It is advantageous if the quaternary ammonium compound is a quaternary ammonium compound having at least one C12 to C22 alkyl chain.

It is preferred if the quaternary ammonium compound has the following formula:

R2

U

R1 -N-R3 X

in which R1 is a C12 to C22 alkyl or alkenyl chain; R2, R3 and R4 are independently selected from Ci to C4 alkyl chains and X" is a compatible anion. A preferred compound of this type is the quaternary ammonium compound cetyl trimethyl quaternary ammonium bromide.

A second class of materials for use with the present invention are the quaternary ammonium of the above structure in which R1 and R2 are independently selected from C12 to C22 alkyl or alkenyl chain; R3 and R4 are independently selected from Ci to C4 alkyl chains and X" is a compatible anion.

The composition optionally comprises a silicone.

Perfume

One or more perfumes may be present as whole or part of the active ingredient of the laundry cleaning composition. The composition preferably comprises a perfume. The perfume is preferably present in the range from 0.001 to 3 wt.%, more preferably 0.05 to 0.5 wt.%, most preferably 0.1 to 1 wt.%. Many suitable examples of perfumes are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) 1992 International Buyers Guide, published by CFTA Publications and OPD 1993 Chemicals Buyers Directory 80th Annual Edition, published by Schnell Publishing Co.

Preferably the perfume comprises at least one note (compound) from: alpha-isomethyl ionone, benzyl salicylate; citronellol; coumarin; hexyl cinnamal; linalool; Pentanoic acid, 2- methyl-, ethyl ester; octanal; benzyl acetate; 1 ,6-octadien-3-ol, 3,7-dimethyl-, 3-acetate; cyclohexanol, 2-(1 , 1 -dimethylethyl)-, 1 -acetate; delta-damascone; beta-ionone; verdyl acetate; dodecanal; hexyl cinnamic aldehyde; cyclopentadecanolide; benzeneacetic acid, 2-phenylethyl ester;amyl salicylate; beta-caryophyllene; ethyl undecylenate; geranyl anthranilate; alpha-irone; beta-phenyl ethyl benzoate; alpa-santalol; cedrol; cedryl acetate; cedry formate; cyclohexyl salicyate; gamma-dodecalactone; and, beta phenylethyl phenyl acetate.

Useful components of the perfume include materials of both natural and synthetic origin. They include single compounds and mixtures. Specific examples of such components may be found in the current literature, e.g., in Fenaroli's Handbook of Flavor Ingredients, 1975, CRC Press; Synthetic Food Adjuncts, 1947 by M. B. Jacobs, edited by Van

Nostrand; or Perfume and Flavor Chemicals by S. Arctander 1969, Montclair, N.J. (USA).

It is commonplace for a plurality of perfume components to be present in a formulation. In the compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components.

In perfume mixtures preferably 15 to 25 wt.% are top notes. Top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955]). Preferred top- notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol.

The International Fragrance Association has published a list of fragrance ingredients (perfums) in 201 1 , (http://www.ifraorq.orq/en-us/inqredients#.U7Z4hPldWzk).

The Research Institute for Fragrance Materials provides a database of perfumes

(fragrances) with safety information. Perfume top note may be used to cue the benefit of the invention.

Some or all of the perfume may be encapsulated, typical perfume components which it is advantageous to encapsulate, include those with a relatively low boiling point, preferably those with a boiling point of less than 300, preferably 100-250 Celsius. It is also advantageous to encapsulate perfume components which have a low CLog P (i.e., those which will have a greater tendency to be partitioned into water), preferably with a CLog P of less than 3.0. These materials, of relatively low boiling point and relatively low CLog P have been called the "delayed blooming" perfume ingredients and include one or more of the following materials: allyl caproate, amyl acetate, amyl propionate, anisic aldehyde, anisole, benzaldehyde, benzyl acetate, benzyl acetone, benzyl alcohol, benzyl formate, benzyl iso valerate, benzyl propionate, beta gamma hexenol, camphor gum, laevo-carvone, d-carvone, cinnamic alcohol, cinamyl formate, cis-jasmone, cis-3-hexenyl acetate, cuminic alcohol, cyclal c, dimethyl benzyl carbinol, dimethyl benzyl carbinol acetate, ethyl acetate, ethyl aceto acetate, ethyl amyl ketone, ethyl benzoate, ethyl butyrate, ethyl hexyl ketone, ethyl phenyl acetate, eucalyptol, eugenol, fenchyl acetate, flor acetate (tricyclo decenyl acetate) , frutene (tricyclco decenyl propionate) , geraniol, hexenol, hexenyl acetate, hexyl acetate, hexyl formate, hydratropic alcohol, hydroxycitronellal, indone, isoamyl alcohol, iso menthone, isopulegyl acetate, isoquinolone, ligustral, linalool, linalool oxide, linalyl formate, menthone, menthyl acetphenone, methyl amyl ketone, methyl

anthranilate, methyl benzoate, methyl benyl acetate, methyl eugenol, methyl heptenone, methyl heptine carbonate, methyl heptyl ketone, methyl hexyl ketone, methyl phenyl carbinyl acetate, methyl salicylate, methyl-n-methyl anthranilate, nerol, octalactone, octyl alcohol, p-cresol, p-cresol methyl ether, p-methoxy acetophenone, p-methyl

acetophenone, phenoxy ethanol, phenyl acetaldehyde, phenyl ethyl acetate, phenyl ethyl alcohol, phenyl ethyl dimethyl carbinol, prenyl acetate, propyl bornate, pulegone, rose oxide, safrole, 4-terpinenol, alpha-terpinenol, and /or viridine. It is commonplace for a plurality of perfume components to be present in a formulation. It is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components from the list given of delayed blooming perfumes given above present in the perfume.

Another group of perfumes with which the present invention can be applied are the so- called aromatherapy' materials. These include many components also used in perfumery, including components of essential oils such as Clary Sage, Eucalyptus, Geranium, Lavender, Mace Extract, Neroli, Nutmeg, Spearmint, Sweet Violet Leaf and Valerian. It is preferred that the laundry treatment composition does not contain a peroxygen bleach, e.g., sodium percarbonate, sodium perborate, and peracid.

Fluorescent Agent

One or more fluorescent agents may be present as whole or part of the active ingredient of the laundry cleaning composition. The composition preferably comprises a fluorescent agent (optical brightener).

Fluorescent agents are well known and many such fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts. Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g. Tinopal DMS pure Xtra and Blankophor (Trade Mark) HRH, and Pyrazoline compounds, e.g. Blankophor SN. Preferred fluorescers are: sodium 2 (4-styryl-3-sulphophenyl)-2H-napthol[1 ,2-d]triazole, disodium 4,4'-bis{[(4-anilino-6-(N methyl-N-2 hydroxyethyl) amino 1 ,3,5-triazin-2- yl)]amino}stilbene-2-2' disulophonate, disodium 4,4'-bis{[(4-anilino-6-morpholino-1 ,3,5- triazin-2-yl)]amino} stilbene-2-2' disulphonate, and disodium 4,4'-bis(2- sulphostyryl)biphenyl.

The total amount of the fluorescent agent or agents used in the composition is preferably from 0.0001 to 0.5 wt.%, more preferably 0.005 to 2 wt.%, most preferably 0.05 to 0.25 wt.%.

The aqueous solution used in the method preferably has a fluorescer present. The fluorescer is preferably present in the aqueous solution used in the method in the range from 0.0001 g/l to 0.1 g/l, more preferably 0.001 to 0.02 g/l. Enzymes

Enzymes may be present as whole or part of the active ingredient of the laundry cleaning composition.

One or more enzymes are preferably present in the laundry composition of the invention and when practicing a method of the invention.

If present, then the level of each enzyme in the laundry composition of the invention is from 0.0001 wt.% to 0.1 wt.%. Levels of enzyme present in the composition preferably relate to the level of enzyme as pure protein.

Contemplated enzymes include proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof.

Preferably the enzyme is selected from: proteases, alpha-amylases; cellulases and lipases.

Suitable lipases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful lipases include lipases from Humicola (synonym Thermomyces), e.g. from H. lanuginosa (T. lanuginosus) as described in EP 258 068 and EP 305 216 or from H. insolens as described in

WO 96/13580, a Pseudomonas lipase, e.g. from P. alcaligenes or

P. pseudoalcaligenes (EP 218 272), P. cepacia (EP 331 376), P. stutzeri

(GB 1 ,372,034), P. fluorescens, Pseudomonas sp. strain SD 705 (WO 95/06720 and WO 96/27002), P. wisconsinensis (WO 96/12012), a Bacillus lipase, e.g. from

B. subtilis (Dartois et al. (1993), Biochemica et Biophysica Acta, 1 131 , 253-360), B. stearothermophilus (JP 64/744992) or B. pumilus (WO 91/16422).

Other examples are lipase variants such as those described in WO 92/05249,

WO 94/01541 , EP 407 225, EP 260 105, WO 95/35381 , WO 96/00292,

WO 95/30744, WO 94/25578, WO 95/14783, WO 95/22615, WO 97/04079 and

WO 97/07202, WO 00/60063.

Preferred commercially available lipase enzymes include Lipolase™ and Lipolase Ultra™, Lipex™ and Lipoclean™(Novozymes A/S).

The method of the invention may be carried out in the presence of phospholipase classified as EC 3.1.1 .4 and/or EC 3.1.1 .32. As used herein, the term phospholipase is an enzyme which has activity towards phospholipids.

Phospholipids, such as lecithin or phosphatidylcholine, consist of glycerol esterified with two fatty acids in an outer (sn-1 ) and the middle (sn-2) positions and esterified with phosphoric acid in the third position; the phosphoric acid, in turn, may be esterified to an amino-alcohol. Phospholipases are enzymes which participate in the hydrolysis of phospholipids. Several types of phospholipase activity can be distinguished, including phospholipases Ai and A2 which hydrolyze one fatty acyl group (in the sn-1 and sn-2 position, respectively) to form lysophospholipid; and lysophospholipase (or phospholipase B) which can hydrolyze the remaining fatty acyl group in lysophospholipid.

Phospholipase C and phospholipase D (phosphodiesterases) release diacyl glycerol or phosphatidic acid respectively.

Protease enzymes hydrolyse bonds within peptides and proteins, in the laundry context this leads to enhanced removal of protein or peptide containing stains. Examples of suitable proteases families include aspartic proteases; cysteine proteases; glutamic proteases; aspargine peptide lyase; serine proteases and threonine proteases. Such protease families are described in the MEROPS peptidase database

(http://merops.sanqer.ac.uk/). Serine proteases are preferred. Subtilase type serine proteases are more preferred. The term "subtilases" refers to a sub-group of serine protease according to Siezen et al., Protein Engng. 4 (1991 ) 719-737 and Siezen et al. Protein Science 6 (1997) 501 -523. Serine proteases are a subgroup of proteases characterized by having a serine in the active site, which forms a covalent adduct with the substrate. The subtilases may be divided into 6 sub-divisions, i.e. the Subtilisin family, the Thermitase family, the Proteinase K family, the Lantibiotic peptidase family, the Kexin family and the Pyrolysin family.

Examples of subtilases are those derived from Bacillus such as Bacillus lentus, B.

alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in; US7262042 and WO09/021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168 described in WO 89/06279 and protease PD138 described in (WO 93/18140). Other useful proteases may be those described in WO 92/175177, WO 01/016285, WO 02/026024 and WO 02/016547. Examples of trypsin-like proteases are trypsin (e.g. of porcine or bovine origin) and the Fusarium protease described in WO 89/06270, WO 94/25583 and WO 05/040372, and the chymotrypsin proteases derived from Cellumonas described in WO 05/052161 and WO 05/052146.

Most preferably the protease is a subtilisins (EC 3.4.21.62).

Examples of subtilases are those derived from Bacillus such as Bacillus lentus, B.

alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in; US7262042 and WO09/021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168 described in WO89/06279 and protease PD138 described in

(WO93/18140). Preferably the subsilisin is derived from Bacillus, preferably Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii as described in US 6,312,936 Bl, US 5,679,630, US 4,760,025, US7,262,042 and WO 09/021867. Most preferably the subtilisin is derived from Bacillus gibsonii or Bacillus Lentus. Suitable commercially available protease enzymes include those sold under the trade names names Alcalase®, Blaze®; DuralaseTm, DurazymTm, Relase®, Relase® Ultra, Savinase®, Savinase® Ultra, Primase®, Polarzyme®, Kannase®, Liquanase®,

Liquanase® Ultra, Ovozyme®, Coronase®, Coronase® Ultra, Neutrase®, Everlase® and Esperase® all could be sold as Ultra® or Evity® (Novozymes A S).

The invention may be use cutinase, classified in EC 3.1 .1 .74. The cutinase used according to the invention may be of any origin. Preferably cutinases are of microbial origin, in particular of bacterial, of fungal or of yeast origin.

Suitable amylases (alpha and/or beta) include those of bacterial or fungal origin.

Chemically modified or protein engineered mutants are included. Amylases include, for example, alpha-amylases obtained from Bacillus, e.g. a special strain of

B. lichen iformis, described in more detail in GB 1 ,296,839, or the Bacillus sp. strains disclosed in WO 95/026397 or WO 00/060060. Commercially available amylases are Duramyl™, Termamyl™, Termamyl Ultra™, Natalase™, Stainzyme™, Fungamyl™ and BAN™ (Novozymes A/S), Rapidase™ and Purastar™ (from Genencor International Inc.).

Suitable cellulases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Suitable cellulases include cellulases from the genera Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia, Acremonium, e.g. the fungal cellulases produced from Humicola insolens, Thielavia terrestris, Myceliophthora thermophila, and Fusarium oxysporum disclosed in US 4,435,307, US 5,648,263, US 5,691 ,178, US 5,776,757, WO 89/09259, WO 96/029397, and WO 98/012307.

Commercially available cellulases include Celluzyme™, Carezyme™, Celluclean™,

Endolase™, Renozyme™ (Novozymes A/S), Clazinase™ and Puradax HA™ (Genencor International Inc.), and KAC-500(B)™ (Kao Corporation). Celluclean™ is preferred.

Suitable peroxidases/oxidases include those of plant, bacterial or fungal origin.

Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinus, e.g. from C. cinereus, and variants thereof as those described in WO 93/24618, WO 95/10602, and WO 98/15257.

Commercially available peroxidases include Guardzyme™ and Novozym™ 51004 (Novozymes A/S). Further enzymes suitable for use are discussed in WO 2009/087524, WO 2009/090576, WO 2009/107091 , WO 2009/1 1 1258 and WO 2009/148983.

The aqueous solution used in the method preferably has an enzyme present. The enzyme is preferably present in the aqueous solution used in the method at a

concentration in the range from 0.01 to 10ppm, preferably 0.05 to 1 ppm.

Enzyme Stabilizers

Any enzyme present in the composition may be stabilized using conventional stabilizing agents, e.g., a polyol such as propylene glycol or glycerol, a sugar or sugar alcohol, lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid, and the composition may be formulated as described in e.g. WO 92/19709 and WO 92/19708. Builders or Complexinq Agents

Builder materials may be present. If present then they are generally selected from 1 ) calcium sequestrant materials, 2) precipitating materials, 3) calcium ion-exchange materials and 4) mixtures thereof. Examples of calcium sequestrant builder materials include alkali metal polyphosphates, such as sodium tripolyphosphate and organic sequestrants, such as ethylene diamine tetra-acetic acid.

Examples of precipitating builder materials include sodium orthophosphate and sodium carbonate.

Examples of calcium ion-exchange builder materials include the various types of water- insoluble crystalline or amorphous aluminosilicates, of which zeolites are well known representatives, e.g. zeolite A, zeolite B (also known as zeolite P), zeolite C, zeolite X, zeolite Y and also the zeolite P-type as described in EP-A-0,384,070.

The composition may also contain 0-65 % of a builder or complexing agent such as ethylenediaminetetraacetic acid, diethylenetriamine-pentaacetic acid, alkyl- or alkenylsuccinic acid, nitrilotriacetic acid or the other builders mentioned below. Preferably the laundry cleaning formulation is a non-phosphate built laundry detergent formulation, i.e., contains less than 1 wt.% of phosphate.

The laundry cleaning formulation is most preferably an aqueous liquid laundry detergent.

In the aqueous liquid laundry detergent it is preferred that mono propylene glycol is present at a level from 1 to 30 wt.%, most preferably 2 to 18 wt.%.

Polymers

The composition may preferably comprise one or more polymers. Example polymers are carboxymethylcellulose, poly(ethylene glycol), polyvinyl alcohol), polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/acrylic acid copolymers. Polymers present to prevent dye deposition may be present, for example

poly(vinylpyrrolidone), poly(vinylpyridine-N-oxide), and poly(vinylimidazole).

Shading Dye

Dyes are described in Color Chemistry Synthesis, Properties and Applications of Organic Dyes and Pigments, (H Zollinger, Wiley VCH, Zurich, 2003) and, Industrial Dyes

Chemistry, Properties Applications. (K Hunger (ed), Wiley-VCH Weinheim 2003).

Shading Dyes for use in laundry compositions preferably have an extinction coefficient at the maximum absorption in the visible range (400 to 700nm) of greater than

5000 L mol"1 cm-1, preferably greater than 10000 L mol"1 cm-1. The dyes are blue or violet in colour.

Preferably the composition comprises a shading dye. Preferably the shading dye is present at from 0.0001 to 0.1 wt.% of the composition.

Preferred shading dye chromophores are azo, azine, anthraquinone, and

triphenylmethane.

Azo, anthraquinone, phthalocyanine and triphenylmethane dyes preferably carry a net anionic charged or are uncharged. Azine preferably carry a net anionic or cationic charge. Blue or violet shading dyes deposit to fabric during the wash or rinse step of the washing process providing a visible hue to the fabric. In this regard the dye gives a blue or violet colour to a white cloth with a hue angle of 240 to 345, more preferably 250 to 320, most preferably 250 to 280. The white cloth used in this test is bleached non- mercerised woven cotton sheeting.

Shading dyes are discussed in WO 2005/003274, WO 2006/032327(Unilever),

WO 2006/032397(Unilever), WO 2006/045275(Unilever), WO 2006/027086(Unilever), WO 2008/017570(Unilever), WO 2008/141880 (Unilever), WO 2009/132870(Unilever), WO 2009/141 173 (Unilever), WO 2010/099997(Unilever), WO 2010/102861 (Unilever), WO 2010/148624(Unilever), WO 2008/087497 (P&G), WO 201 1/01 1799 (P&G), WO 2012/054820 (P&G), WO 2013/142495 (P&G) and WO 2013/151970 (P&G).

Mono-azo dyes preferably contain a heterocyclic ring and are most preferably thiophene dyes. The mono-azo dyes are preferably alkoxylated and are preferably uncharged or anionically charged at pH=7. Alkoxylated thiophene dyes are discussed in

WO/2013/142495 and WO/2008/087497. Preferred examples of thiophene dyes are shown below:

Figure imgf000021_0001

Figure imgf000021_0002

Figure imgf000022_0001

Bis-azo dyes are preferably sulphonated bis-azo dyes. Preferred examples of sulphonated bis-azo compounds are direct violet 7, direct violet 9, direct violet 1 1 , direct violet 26, direct violet 31 , direct violet 35, direct violet 40, direct violet 41 , direct violet 51 , Direct Violet 66, direct violet 99 and alkoxylated versions thereof. Alkoxylated bis-azo dyes are discussed in WO2012/054058 and WO2010/151906.

An example of an alkoxylated bis-azo dye

Figure imgf000022_0002

Thiophene dyes are available from Milliken under the tradenames of Liquitint Violet DD and Liquitint Violet ION.

Azine dye are preferably selected from sulphonated phenazine dyes and cationic phenazine dyes. Preferred examples are acid blue 98, acid violet 50, dye with CAS-No 72749-80-5, acid blue 59, and the phenazine dye selected from:

Figure imgf000022_0003
wherein:

X3 is selected from: -H; -F; -CH3; -C2H5; -OCH3; and, -OC2H5; X4 is selected from: -H; -CH3; -C2H5; -OCH3; and, -OC2H5;

Y2 is selected from: -OH; -OCH2CH2OH; -CH(OH)CH2OH; -OC(0)CH3; and, C(0)OCH3.

The shading dye is present is present in the composition in range from 0.0001 to

0.5 wt %, preferably 0.001 to 0.1 wt%. Depending upon the nature of the shading dye there are preferred ranges depending upon the efficacy of the shading dye which is dependent on class and particular efficacy within any particular class. As stated above the shading dye is a blue or violet shading dye. A mixture of shading dyes may be used.

The shading dye is most preferably a reactive blue anthraquinone dye covalently linked to an alkoxylated polyethyleneimine. The alkoxylation is preferably selected from ethoxylation and propoxylation, most preferably propoxylation. Preferably 80 to 95 mol% of the N-H groups in the polyethylene imine are replaced with iso-propyl alcohol groups by propoxylation. Preferably the polyethylene imine before reaction with the dye and the propoxylation has a molecular weight of 600 to 1800.

An example structure of a preferred reactive anthraquinone covalently attached to a propoxylated polyethylene imine is:

Figure imgf000023_0001

(Structure I). Misc

Where alkyl groups are sufficiently long to form branched or cyclic chains, the alkyl groups encompass branched, cyclic and linear alkyl chains. The alkyl groups are preferably linear or branched, most preferably linear.

The indefinite article "a" or "an" and its corresponding definite article "the" as used herein means at least one, or one or more, unless specified otherwise.

Experimental

The examples below are intended to illustrate the invention in detail without, however, limiting it thereto.

Trimellitic acid, trimellitic anhydride, pyromellitic acid, phenoxyethanol, methanesulfonic acid, pTsOH, Titanium isopropoxide, 4-Dodecylbenzenesulfonic acid mixture of isomers and benzyl alcohol were used as purchased from Sigma Aldrich.

Lauryl myristyl alcohol and cetearyl alcohol were used in technical grade quality and their molecular masses were determined prior to use by measuring the hydroxyl value (OH- value) and subsequently calculating the molecular weight (per hydroxyl function,

"Gebrauchsmol"). In this case the OH-value may be measured according to DIN 53240.

The acid number (acid value) may be measure according to DIN EN ISO 21 14.

The degree of alkoxylation of the used amine alkoxylates may be checked using NMR spectroscopy, for example using 1H-NMR spectroscopy in analogy to the method described in R. Stevanova, D. Rankoff, S. Panayotova, S.L. Spassov, J. Am. Oil Chem. Soc, 65, 1516-1518 (1988). For this purpose, the samples are derivatised by reacting them with trichloro acetyl isocyanate and measured as solutions in deuterated chloroform containing 1 weight-% (1 wt.-%) of tetramethyl silane as an internal standard.

The esterification reactions were controlled by determining the residual content of alcohol (e.g. benzyl alcohol, phenoxyethanol, lauryl myristyl alcohol and cetearyl alcohol) by GC- FID. Calibration was performed with pure starting materials. Gas chromatography (GC) was performed using a Hewlett Packard GC 6890 with autosampler, coupled with a flame-ionisation detector (FID). For the quantification of benzyl alcohol, samples were separated on a 50 m x 0.2 mm, 0.33 μηη film column. The column temperature was initially held at 50°C, then the temperature was raised to 175°C at a rate of 5°C per minute and from 175°C to 300°C at a rate of 25°C per minute. The injector temperature was maintained at 250°C and the injection volume was 1.0 μΙ_ in the split mode. Helium was used as a carrier gas with a constant pressure of 1 .8 bar. The samples were prepared by diluting 500 mg of sample (duplicate analysis) with 5 ml of methanol.

For the quantification of phenoxyethanol, cetearyl alcohol and dodecanol, samples were separated on a 25 m x 0.32 mm, 0.52 μηη film column. The column temperature was initially held at 50°C, then the temperature was raised to 250°C at a rate of 10°C per minute and held for 6.5 minutes. The injector temperature was maintained at 250°C and the injection volume was 1 .0 μΙ_ in the split mode. Helium was used as a carrier gas with a constant pressure of 0.9 bar. The samples were prepared by diluting 500 mg of sample (duplicate analysis) with 5 ml of methanol.

Thin layer chromatography (TLC) was performed using TLC Silica Gel 60 F254 plates from Merck. The aromatic compounds were detected by UV light (254 and 366 nm simultaneously).

All examples, unless otherwise stated, were performed according to a standard procedure. All reagents and quantities are listed in Table I.

The amine alkoxylate of choice was heated to 80°C with stirring under nitrogen. The polycarboxylic acid or acid anhydride of choice was then added in portions over 5 minutes. The reaction mixture was then stirred for 2.5 hours at 80°C. The product, henceforth termed precursor, was isolated and the acid number determined - these are listed in Table I in the column AN1 . Some amount of the precursor (listed in the column "PC" of Table I) was mixed with the alcohol and catalyst of choice and heated to the temperature listed in Table I while stirring under nitrogen. The reaction mixture was stirred at the temperature listed for the time denoted in Table I and water was distilled off. The abbreviations used in Table I are as follows:

AA amine alkoxylate

PCA polycarboxylic acid

PC precursor

BA benzyl alcohol

PE phenoxyethanol

C16/18 cetearyl alcohol

C12/14 lauryl myristyl alcohol

AN1 acid number of the precursor

AN2 acid number of the final product

M41 amine-terminated methyl-ethoxylated-propoxylated polyether with an average molecular weight of 2000 g/mol, an average molar ratio of EO to PO of 4 to 1 with the EO and PO units distributed statistically

TMAA trimellitic acid anhydride

Cat Catalyst (pTsOH p-toluene sulfonic acid)

Table I: Example Dispersant Compositions

Figure imgf000027_0001

As a comparative example, sample C1 from Table I was isolated after the first synthesis step and no reaction with alcohol was performed.

An aqueous liquid laundry detergent of the following formulation was prepared:

Table II: Liquid laundry detergent formulation

Figure imgf000028_0001

Application Example 1 - Anti-Redeposition Benefit

The formulation was used to wash eight 5x5 cm knitted cotton cloth pieces in a

Tergotometer set at 200 rpm (revolutions per minute). A one hour wash was conducted in 800 ml of water with 26° French hardness at 20°C, with 2.3 g/l of the formulation shown in Table II. To simulate particulate soil that could redeposit, 0.04 g/l of 100% compressed carbon black (ex Alfa Aesar) was added to the wash liquor. To simulate oily sebaceous soil, 7.2 g of an SBL2004 soil strip (ex Warwick Equest) was added to the wash liquor.

Once the wash had been completed, the cotton swatches were rinsed once in 400 ml clean water, removed, dried and the colour measured on a reflectometer and expressed as the CIE L*a*b* values. The anti-redeposition benefit was expressed as the AL value:

AL = L*(dispersant)- L*(control)

The larger the AL value, the greater the prevention of deposition of the carbon black soil. 95% confidence limits based on the 8 separate cotton swatches were calculated. Formulations were made with and without the addition of 8.7 wt.-% of the dispersants of Table I. The results are given in Table III.

Table III: Anti-redeposition benefit

Figure imgf000029_0001

The alkoxylated dispersants reduces deposition of the carbon black soil significantly.

Claims

1. A laundry cleaning composition comprising:
(i) from 0.2 to 20 wt.%, preferably 0.5 to 12 wt.%, more preferably 1 to 10 wt.% of an alkoxylated dispersant of the following structure:
Figure imgf000030_0001
wherein:
X is selected from: ethoxy; and mixtures of ethoxy and propoxy groups, wherein the number of ethoxy groups is greater than the number of propoxy groups, and wherein n is from 6 to 70;
m is selected from: 2 and 3;
Ri is selected from: branched and linear C8 to C20 alkyl chains, uncharged aryl groups; and, uncharged alkyl-aryl groups, wherein the alkyl group of the alkyl-aryl is a saturated linear or branched C1 to C3;
wherein the alkyl group of the alkyl-aryl is a saturated linear or branched C1 to C3; T is selected from: H; CH3; S03 "; CH2COO"; P03 2"; C2H5; n-propyl, i-propyl; n-butyl; t-butyl; and, sulfosuccinate;
Y is selected from O and NH;
(ii) from 0 to 50 wt.% surfactant, other than the alkoxylated dispersant; and
(iii) an active ingredient selected from one or more of the following: from 0.001 to 3 wt.% perfume; from 0.0001 to 0.5 wt.% of fluorescent agent; and, from 0.0001 wt.% to 0.1 wt.% of an enzyme.
2. A laundry cleaning composition according to claim 1 , wherein Ri is selected from C12 to C18 linear alkyl chains; benzyl; and phenylethyl.
3. A laundry cleaning composition according to claim 1 or 2, wherein T is not H.
4. A laundry cleaning composition according to any preceding claim, wherein Y is O.
5. A laundry cleaning composition according to any one of the preceding claims, wherein n is from 6 to 40, preferably from 9 to 30, more preferably from 10 to 20.
6. A laundry cleaning composition according to any one of the preceding claims, wherein T is CH3.
7. A laundry cleaning composition according to any one of the preceding claims, wherein X comprises at least one mole of propoxy groups and the mole ratio of ethoxy/propoxy is greater 2, preferably greater than 5.
A laundry cleaning composition according to any preceding claim, wherein the alkoxylated dispersant is selected from:
Figure imgf000031_0001
A laundry cleaning composition according to any one of the preceding claims, wherein the surfactant is present at a level of from 4 to 40 wt.%, preferably from 4 to 35 wt.%, more preferably from 6 to 30 wt.%, and the surfactant comprises anionic and/or non-ionic surfactants, preferably wherein the weight fraction of non ionic surfactant to anionic surfactant is from 0 to 0.3, wherein the alkoxylated dispersant is not considered a surfactant as defined herein. 10. A laundry cleaning composition according to claim 9, wherein the anionic
surfactant is selected from: linear alkyi benzene sulphonates; alkyi sulphates; alkyi ether sulphates; alkyi ether carboxylates and mixtures thereof. A laundry cleaning composition according to claim 9 or claim 10, comprising a non-ionic surfactant, wherein the non-ionic surfactant is an alcohol ethoxylate, preferably an C10-C18 alcohol ethoxylate having an average of 3-10 moles of ethylene oxide, more preferably an C12-C15 alcohol ethoxylate having an average of 5-9 moles of ethylene oxide.
A laundry cleaning composition according to any one of the preceding claims, wherein the composition is an aqueous liquid detergent composition having a pH from 6 to 8.5, preferably from 6.5 to 7.5, more preferably from 6.8 to 7.2, most preferably 7.0.
A laundry cleaning composition according to any preceding claim, wherein the active ingredient is an enzyme and comprises one or more of the following:
proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof, preferably the enzyme is a protease, more preferably a subtilase type serine protease.
A domestic method of treating a textile, the method comprising the steps of:
(i) treating a textile with an aqueous solution of the alkoxylated dispersant as defined in any one of claims 1 to 8;
the aqueous solution comprising from 10 ppm to 5000 ppm, preferably from 100 ppm to 1000 ppm of the alkoxylated dispersant; and, from 0 to 6 g/L, preferably from 0.5 to 6 g/L, more preferably from 1 to 5 g/L of a surfactant, other than the alkoxylated dispersant; and,
(ii) optionally rinsing and drying the textile;
wherein in the method one or more of an active ingredient selected from perfume, fluorescent agent and enzyme is present in the aqueous solution of the alkoxylated dispersant,
wherein if present, the level of the perfume in the aqueous solution is from 0.1 to 100 ppm;
wherein if present, the level of the fluorescent agent in the aqueous solution is from 0.0001 g/l to 0.1 g/L, preferably from 0.001 to 0.02 g/L; and, wherein if present, the level of the enzyme in the aqueous solution is from 0.01 to 10ppm, preferably 0.05 to 1 ppm.
PCT/EP2018/068089 2017-07-07 2018-07-04 Laundry cleaning composition WO2019008035A1 (en)

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