EP2948535A1 - Additif non coloré de lavage du linge destiné à l'amélioration de l'antiredéposition de salissures particulaires - Google Patents

Additif non coloré de lavage du linge destiné à l'amélioration de l'antiredéposition de salissures particulaires

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Publication number
EP2948535A1
EP2948535A1 EP14700757.9A EP14700757A EP2948535A1 EP 2948535 A1 EP2948535 A1 EP 2948535A1 EP 14700757 A EP14700757 A EP 14700757A EP 2948535 A1 EP2948535 A1 EP 2948535A1
Authority
EP
European Patent Office
Prior art keywords
material according
cross
aromatic
uncoloured
linker
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.)
Granted
Application number
EP14700757.9A
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German (de)
English (en)
Other versions
EP2948535B1 (fr
Inventor
Stephen Norman Batchelor
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
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Unilever PLC
Unilever NV
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Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP14700757.9A priority Critical patent/EP2948535B1/fr
Publication of EP2948535A1 publication Critical patent/EP2948535A1/fr
Application granted granted Critical
Publication of EP2948535B1 publication Critical patent/EP2948535B1/fr
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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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0036—Soil deposition preventing compositions; Antiredeposition agents
    • 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
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3723—Polyamines or polyalkyleneimines
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/12—Soft surfaces, e.g. textile

Definitions

  • This invention relates to uncoloured laundry additive materials for promotion of anti redeposition of particulate soil, in particular to anti-redeposition polymers (ARPs).
  • ARPs anti-redeposition polymers
  • a crosslinked PEI possibly suitable as a laundry anti redeposition polymer is taught by Zhang & Lonnie (Chinese J. Chem., Vol 21 p 460-5, 2003) discusses the preparation of PEI-PEO block copolymers and their clay dispersancy.
  • the polymers are triblock polymers formed from divalently modified PEG (dimesyl). This forms a PEO crosslink between two PEI groups.
  • EPEI is much preferred over PEI for several reasons.
  • a major factor in the selection is the poor performance of PEI on nylon elastane based fabrics. PEI tends to deposit soil onto such fabrics.
  • Crosslinked PEI does not solve that problem satisfactorily.
  • EPEI does not suffer from the same nylon- elastane negatives as PEI and has consequently been widely used in laundry compositions. However, it would be desirable to improve the performance of EPEI as an ARP.
  • uncoloured laundry additive material which has a maximum extinction coefficient in L mol "1 cm “1 of less than 800, preferably less than 100, in the wavelength range 400 to 750 nm for promotion of anti redeposition of particulate soil, the material comprising at least two polyalkoxylated polyethyleneimines (PEIs), which can be the same or different, crosslinked to one another by an uncoloured aromatic cross-linking moiety.
  • PEIs polyalkoxylated polyethyleneimines
  • the aromatic group may confer rigidity to the cross link, which prevents the polyalkoxylated PEIs folding together and failing to function as intended.
  • the difunctional aromatic cross-linker contains 2 or 3 aromatic groups, the aromatic groups covalently bound to each other by a single covalent bond, or via a -CH2- or -NH- group.
  • the functional (reactive) groups will be identical. More preferably one or more of the aromatic groups is a phenyl group. Most preferably one or more of the aromatic groups is a 1 ,3,5 triazine.
  • the polyalkoxylation is preferably polyethoxylation, to thereby form ethoxylated polyethyleneimine (EPEI).
  • EPEI ethoxylated polyethyleneimine
  • EPEI may then be cross-linked by the very simple process of mixing the EPEI and the aromatic cross-linker in warm water.
  • the aromatic cross-linker is itself uncoloured.
  • uncoloured it is meant that the material is not strongly coloured which is the case provided that it has a maximum extinction coefficient in L mol "1 cm "1 of less than 800, preferably less than 100, in the wavelength range 400 to 750 nm.
  • Amino functional materials can have a slight yellowness and such slight yellowness is uncoloured for the purposes of this invention provided that the extinction coefficient criterion is met.
  • a process to manufacture the uncoloured crosslinked polyethoxylated polyethyleneimine material comprising the steps of mixing the uncoloured cross linker with EPEI in warm aqueous solution, preferably at 320 to 360 K.
  • a laundry detergent composition comprising 2 to 60 wt % of a detersive surfactant system and 0.1 to 10 wt % of the uncoloured cross linked polyalkoxylated polyethyleneimine according to the first aspect.
  • a fourth aspect there is provided use of the material according to the first aspect to prevent particulate soil redeposition during a fabric washing process.
  • a laundry process wherein a wash liquor comprising at least 5 ppm of the material of the first aspect and at least 0.3 g/L of detersive surfactant dispersed in water is used to wash a mixed load of fabrics selected from at least 2 of: cotton, polycotton, polyester and nylon elastane, provided that nylon elastane is present.
  • a polyalkoxylated polyethyleneimine (EPEI polymer) is a known organic compound. If the cross-linker is intended to react with a hydroxyl group it is necessary that at least some of the alkoxyl chains are terminated with hydroxyl groups. Alternatively, if the cross linker is intended to react with the primary or secondary amine to substitute its hydrogen then it is essential that the
  • polyethyleneimine has at least one NH group remaining after polyalkoxylation. This unsubstituted primary or secondary amine then permits the formation of a covalent bond between its nitrogen and the aromatic cross-linker.
  • Preferred polyalkoxylation is polyethoxylated and/or polypropoxylated. Most preferably polyethoxylated. When propoxylation is present it is preferred that it is in a minority of the polyalkoxylation and that it is adjacent to the nitrogens, the remaining polyalkoxylation being polyethoxylation and being more remote from the nitrogen.
  • Polyethyleneimine (PEI) materials are usually highly branched polyamines characterized by the empirical formula (0 2 ⁇ 5 ⁇ ) ⁇ with a molecular mass of 43.07 (as repeating units). They are commercially prepared by acid-catalyzed ring opening of ethyleneimine, also known as aziridine.
  • PEIs may be alkoxylated to form polyalkoxylated polyethyleneimines whereby polyalkoxyl chains are provided in place of some or all of the hydrogen moieties found on the primary and secondary amines in the PEI.
  • the alkylene oxide used in this reaction can be a single type (for example ethylene oxide) or a mixture.
  • the resulting polyalkoxylation can be a homopolymer, a random copolymer or a block copolymer.
  • the alkoxy groups are preferably selected from ethoxy and propoxy groups.
  • the polyalkylene oxide chains preferably have repeat units of alkoxy moieties in the range from 5 to 30, preferably 12 to 22.
  • the polyalkylimine core, preferably PEI, of the material preferably has a weight average molecular weight of 180-60000, more preferably 400-2000, most preferably 500-1000.
  • the polyalkylimine core may be branched or linear, preferably branched.
  • polyalkoxylation consists entirely of ethylene oxide units (polyethoxylation).
  • the PEI is not modified except by polyalkoxylation prior to crosslinking, for example it is not oxidised to make NO groups and the Nitrogens are not quaternised.
  • the weight average molecular weights, M w are suitably determined by dynamic light scattering using a Zetasizer Nano (Malvern).
  • EPEIs are commercially available from the BASF Corporation and from Nippon Shokubai.
  • Suitable EPEIs for crosslinking may be found in: WO2007/083262; WO
  • PEI core An example PEI core is shown below:
  • the polymer contains 15 Nitrogens of which 6 are primary amines (NH 2 ); 5 are secondary amines (NH) and 4 are tertiary amines.
  • the aromatic cross-linker is an organic chemical which contains an aromatic group comprising at least one aromatic ring and two reactive groups that react with alcohols, primary amines, or secondary amines to form a covalent bond.
  • the aromatic group is phenyl or 1 , 3, 5-triazine.
  • the aromatic cross-linker contains 2 or 3 aromatic rings that are directly linked to each other by a single covalent bond, or linked by a divalent CH 2 or NH group. The aromatic rings may be further substituted by non-aromatic organic groups.
  • Preferred reactive groups are selected from epoxides, alkenes, a
  • sulfoxyethylsulfonyl reactive group (-SO 2 CH 2 CH 2 OSO3Na) and heterocyclic reactive groups.
  • Preferred heterocyclic reactive groups are nitrogen containing aromatic rings bound to a halogen or an ammonium group, which react with NH 2 or NH or OH group to form a covalent bond.
  • the halogen is preferred.
  • More preferred heterocyclic reactive groups are dichlorotriazinyl, difluorochloropyrimidine, monofluorotrazinyl, monofluorochlorotrazinyl, dichloroquinoxaline, difluorotriazine, monochlorotriazinyl, and trichloropyrimidine.
  • the aromatic cross linker is preferably sulphonated.
  • the aromatic cross-linker is ACL 1 , ACL 2, ACL 3, ACL 4, most preferably ACL 3 and ACL 4, as hereafter described.
  • the ACL is preferably cross-linked via the OH groups of the alkoxy chain or via the NH and NH 2 groups of the core PEL Most preferably the cross-link is via the OH groups of the alkoxy chain.
  • the mole ratio of aromatic cross-linker to polyalkoxylated polyamines is from 1 :5 to 1 :2.
  • the aromatic cross-linker is itself uncoloured by which is meant that is has a maximum extinction coefficient in L mol "1 cm "1 of less than 800, preferably less than 100, in the wavelength range 400 to 750 nm.
  • the detergent compositions may take any suitable form. For example they may be powders, tablets, liquids or gels and in the case of liquids they may be contained in a water soluble capsule to allow for ease of use. Preferred compositions are liquids due to the compatibility of the polyalkoxylated PEI ARP materials with ingredients typically found in liquid detergents.
  • Surfactants assist in removing soil from the textile materials and also assist in maintaining removed soil in solution or suspension in the wash liquor.
  • Blends of anionic and nonionic surfactants are a preferred feature of the compositions.
  • the amount of anionic surfactant is preferably at least 5 wt%, more preferably at least 10wt%.
  • Anionic Preferred anionic surfactants are alkyl sulphonates especially alkylbenzene sulphonates, particularly linear alkylbenzene sulphonates having an alkyl chain length of Cs-C-is.
  • the counter ion for the anionic surfactants is may be an alkali metal, typically sodium, or another counter-ion for example MEA, TEA or ammonium can be used.
  • Suitable linear alkyl benzene sulphonate surfactants include Detal LAS with an alkyl chain length of from 8 to 15, more preferably 12 to 14. It is further desirable that the composition comprises an alkyl polyethoxylate sulphate anionic surfactant of the formula (II):
  • R is an alkyl chain having from 10 to 22 carbon atoms, saturated or unsaturated
  • M is a cation which makes the compound water-soluble, especially an alkali metal, ammonium or substituted ammonium cation, and x averages from 1 to 15.
  • R is an alkyl chain having from 12 to 16 carbon atoms
  • M is Sodium and x averages from 1 to 3, preferably x is 3;
  • SLES anionic surfactant sodium lauryl ether sulphate It is the sodium salt of lauryl ether sulphonic acid in which the predominantly C12 lauryl alkyl group has been ethoxylated with an average of 3 moles of ethylene oxide per mole.
  • Nonionic surfactants include primary and secondary alcohol ethoxylates, especially C8-C20 aliphatic alcohol ethoxylated with an average of from 1 to 20 moles of ethylene oxide per mole of alcohol, and more especially the C10-C15 primary and secondary aliphatic alcohols ethoxylated with an average of from 1 to 10 moles of ethylene oxide per mole of alcohol.
  • Non-ethoxylated nonionic surfactants include alkyl polyglycosides, glycerol monoethers and polyhydroxy amides (glucamide). Mixtures of nonionic surfactant may be used.
  • the composition contains from 0.1 to 20 wt% preferably 1 wt% to 15 wt%, more preferably 5 to 15 wt% of a non-ionic surfactant, for example alcohol ethoxylate, nonylphenol ethoxylate, alkylpolyglycoside,
  • a non-ionic surfactant for example alcohol ethoxylate, nonylphenol ethoxylate, alkylpolyglycoside
  • alkyldimethylamineoxide ethoxylated fatty acid monoethanolamide, fatty acid monoethanolamide, polyhydroxy alkyl fatty acid amide, or N-acyl N-alkyl derivatives of glucosamine ("glucamides").
  • Nonionic surfactants that may be used include the primary and secondary alcohol ethoxylates, especially the C8-C20 aliphatic alcohols ethoxylated with an average of from 1 to 35 moles of ethylene oxide per mole of alcohol, and more especially the C10-C15 primary and secondary aliphatic alcohols ethoxylated with an average of from 1 to 10 moles of ethylene oxide per mole of alcohol.
  • composition may comprise up to 10 wt% of an amine oxide of the formula (III):
  • R 1 is a long chain moiety
  • R 2 are short chain moieties.
  • R 2 is preferably selected from hydrogen, methyl and -CH 2 OH.
  • R 1 is a primary or branched hydrocarbyl moiety which can be saturated or unsaturated, preferably, R 1 is a primary alkyl moiety.
  • R 1 is a hydrocarbyl moiety having chain length of from about 8 to about 18.
  • Preferred amine oxides have R 1 is C 8 -Ci 8 alkyl, and R 2 is H. These amine oxides are illustrated by C12-14 alkyldimethyl amine oxide, hexadecyl dimethylamine oxide, octadecylamine oxide.
  • a preferred amine oxide material is Lauryl dimethylamine oxide, also known as dodecyldimethylamine oxide or DDAO. Such an amine oxide material is commercially available from Huntsman under the trade name Empigen® OB.
  • Amine oxides suitable for use herein are also available from Akzo Chemie and Ethyl Corp. See McCutcheon's compilation and Kirk-Othmer review article for alternate amine oxide manufacturers.
  • R 2 is H
  • R 2 may be CH 2 OH, for example: hexadecylbis(2- hydroxyethyl)amine oxide, tallowbis(2-hydroxyethyl)amine oxide, stearylbis(2- hydroxyethyl)amine oxide and oleylbis(2- hydroxyethyl)amine oxide.
  • Preferred amine oxides have the formula (IV): O " - N + (Me) 2 R 1 (IV) where R 1 is C-
  • a preferred zwitterionic material is a carbobetaine available from Huntsman under the name Empigen® BB. Betaines and / or amine oxides, improve particulate soil detergency in the compositions. Additional surfactants
  • surfactants than the preferred LAS, SLES, nonionic and amine oxide/ carbobetaine may be added to the mixture of detersive surfactants.
  • cationic surfactants are preferably substantially absent.
  • alkyl sulphate surfactant may be used, especially the non-ethoxylated C12-15 primary and secondary alkyl sulphates.
  • compositions may include 0.5 wt% or more of a soil release polymer which is substantive to polyester fabric.
  • a soil release polymer which is substantive to polyester fabric.
  • Such polymers typically have a fabric substantive midblock formed from propylene terephthalate repeat units and one or two end blocks of capped polyalkylene oxide, typically PEG 750 to 2000 with methyl end capping.
  • a hydrotrope is a solvent that is neither water nor conventional surfactant that aids the solubilisation of the surfactants and other components in the aqueous liquid to render it isotropic.
  • suitable hydrotropes there may be mentioned as preferred: MPG (monopropylene glycol), glycerol, sodium cumene sulphonate, ethanol, other glycols, e.g. di propylene glycol, diethers and urea.
  • At least one or more enzymes may be present in the compositions.
  • at least two, more preferably at least three different classes of enzymes are used in combination.
  • Preferred enzyme cocktails are selected from the group comprising: lipase, Phospholipase, protease, Cutinase, Amylase, Cellulase, Peroxidases/oxidase, Pectate Lyase, and Mannanase.
  • Any enzyme present in the composition may be stabilized using conventional stabilizing agents, e.g., a polyol for example 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 for example 4-formylphenyl boronic acid, and the composition may be formulated as described in e.g. WO 92/19709 and WO 92/19708.
  • the enzymes may be protected by encapsulation
  • a lignin compound may be used in the composition.
  • the lignin compound comprises a lignin polymer and more preferably it is a modified lignin polymer.
  • a modified lignin polymer as used herein is lignin that has been subjected to a chemical reaction to attach chemical moieties to the lignin covalently. The attached chemical moieties are preferably randomly substituted.
  • fluorescer in the compositions.
  • these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • the total amount of the fluorescent agent or agents used in the composition is generally from 0.005 to 2 wt %, more preferably 0.01 to 0.5 wt %.
  • 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, Tinopal 5BMGX, and Blankophor (Trade Mark) HRH, and
  • Pyrazoline compounds e.g. Blankophor SN.
  • Preferred fluorescers are: sodium 2 (4-styryl-3-sulfophenyl)-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' disulfonate, disodium 4,4'-bis ⁇ [(4-anilino-6- morpholino-1 ,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, and disodium 4,4'- bis(2-sulfoslyryl)biphenyl. Bleach Catalyst
  • Compositions may comprise a weight efficient bleach system. Such systems typically do not utilise the conventional percarbonate and bleach activator approach.
  • An air bleach catalyst system is preferred.
  • Suitable complexes and organic molecule (ligand) precursors for forming complexes are available to the skilled worker, for example, from: WO 98/39098; WO 98/39406, WO 97/48787, WO 00/29537; WO 00/52124, and WO00/60045, incorporated by reference.
  • An example of a preferred catalyst is a transition metal complex of MeN4Py ligand (N,N-bis(pyridin-2-yl-methyl)-1 -,1 -bis(pyridin-2-yl)-1 -aminoethane).
  • Suitable bispidon catalyst materials and their action are described in WO02/48301 .
  • the bleach catalyst may be encapsulated to reduce interaction with other components of the liquid during storage.
  • Photobleaches may also be employed.
  • a "photobleach” is any chemical species that forms a reactive bleaching species on exposure to sunlight, and preferably is not permanently consumed in the reaction.
  • Preferred photo-bleaches include singlet oxygen photo-bleaches and radical photo-bleaches.
  • Suitable singlet oxygen photo-bleaches may be selected from, water soluble phthalocyanine compounds, particularly metallated phthalocyanine compounds where the metal is Zn or AI-Z1 where Z1 is a halide, sulphate, nitrate, carboxylate, alkanolate or hydroxyl ion.
  • the phthalocyanin has 1 -4 SO3X groups covalently bonded to it where X is an alkali metal or ammonium ion.
  • the bleach catalyst is typically incorporated at a level of about 0.0001 to about 10 wt%, preferably about 0.001 to about 5 wt%.
  • composition will normally include one of more perfume components. Free oil and encapsulated perfumes may be used, and mixtures thereof.
  • a particularly preferred way of ensuring that perfume is employed efficiently is to use an encapsulated perfume.
  • Use of a perfume that is encapsulated reduces the amount of perfume vapour that is produced by the composition before it is diluted. This is important when the perfume concentration is increased to allow the amount of perfume per wash to be kept at a reasonably high level.
  • the perfume is not only encapsulated but also that the encapsulated perfume is provided with a deposition aid to increase the efficiency of perfume deposition and retention on fabrics.
  • the deposition aid is preferably attached to the encapsulate by means of a covalent bond,
  • compositions may contain one or more other ingredients.
  • ingredients include viscosity modifiers, foam boosting agents, preservatives (e.g.
  • compositions may further comprise colorants, pearlisers and/or opacifiers, and shading dye.
  • Shading dye can be used to improve the performance of the compositions.
  • Preferred dyes are violet or blue. It is believed that the deposition on fabrics of a low level of a dye of these shades, masks yellowing of fabrics. A further advantage of shading dyes is that they can be used to mask any yellow tint in the composition itself. Examples of shading dyes are alkoxylated thiophene dyes, acid violet 50, direct violet 35, direct violet 99, direct violet 9, solvent violet 13, disperse violet 28, disperse blue 165.
  • Shading dye can be used in the absence of fluorescer, but it is especially preferred to use a shading dye in combination with a fluorescer, for example in order to reduce yellowing due to chemical changes in adsorbed fluorescer.
  • the detergent compositions may also optionally contain relatively low levels of organic detergent builder or sequestrant material.
  • organic detergent builder or sequestrant material examples include the alkali metal, citrates, succinates, malonates, carboxymethyl succinates, carboxylates, polycarboxylates and polyacetyl carboxylates.
  • specific examples include sodium, potassium and lithium salts of oxydisuccinic acid, mellitic acid, benzene
  • polycarboxylic acids and citric acid.
  • Other examples are DEQUESTTM, organic phosphonate type sequestering agents sold by Monsanto and alkanehydroxy phosphonates.
  • suitable organic builders include the higher molecular weight polymers and copolymers known to have builder properties.
  • such materials include appropriate polyacrylic acid, polymaleic acid, and polyacrylic/polymaleic acid copolymers and their salts, for example those sold by BASF under the name SOKALANTM.
  • the organic builder materials may comprise from about 0.5% to 20 wt%, preferably from 1 wt% to 10 wt%, of the composition.
  • the preferred builder level is less than 10 wt% and preferably less than 5 wt% of the composition.
  • a preferred sequestrant is HEDP (1 -Hydroxyethylidene -1 ,1 ,-diphosphonic acid), for example sold as Dequest 2010.
  • Dequest® 2066 Diethylenetriamine penta(methylene phosphonic acid or Heptasodium DTPMP).
  • buffers are MEA, and TEA. If present they are preferably used in the composition at levels of from 1 to 15 wt%.
  • External Structurants are preferred for pH control; preferred buffers are MEA, and TEA. If present they are preferably used in the composition at levels of from 1 to 15 wt%.
  • compositions may have their rheology modified by use of a material or materials that form a structuring network within the composition.
  • Suitable structurants include hydrogenated castor oil, microfibrous cellulose and natural based structurants for example citrus pulp fibre. Citrus pulp fibre is particularly preferred especially if lipase enzyme is included in the composition.
  • compositions may comprise visual cues of solid material that is not dissolved in the composition.
  • visual cues are lamellar cues formed from polymer film and possibly comprising functional ingredients that may not be as stable if exposed to the alkaline liquid.
  • Enzymes and bleach catalysts are examples of such ingredients.
  • perfume, particularly microencapsulated perfume are examples of such ingredients.
  • a 600 molecular weight branched PEI with 15 ethoxylate groups per NH (e.g. the primary amine functionality -NH 2 has become -N(15EO) 2 ).
  • the polyethoxylate chains of this polyethoxylated polyethyleneimine polymer (EPEI) are OH capped.
  • the aromatic cross-linkers detailed in Table 1 were used to cross-link the standard polyethoxylated polyethyleneimine polymer.
  • CLAP 4 is a cross-linked EPEI without any sulphonates.
  • the polymers were added to the base detergent composition given in Table 2 at levels of 0.44 and 3.5 wt% to make detergent compositions A and B.
  • NaLAS is sodium Cn to C15 alkyl benzene sulphonate.
  • NI(7EO) is R-(OCH 2 CH 2 )nOH, where R is an alkyl chain of C 2 to C 5 , and n is 7.
  • SLES(3EO) is sodium lauryl ether sulphate with 3 ethoxy groups.
  • Alkyl Betaine used was Empigen® BB (ex Huntsman).
  • Alkaline (pH approx 8.3) wash liquors made using Compositions A and B were used to wash a mixture of white fabrics: woven cotton, micro-fibre polyester, woven polycotton and knitted nylon-elastane at Liquor to cloth ratio of 10:1 in a
  • the detergent compositions were each used at 2.3 g/L.
  • the white cotton cloths were removed, dried and the reflectance spectrum then measured using a reflectometer with the UV filter in place.
  • the enhancement in cleaning was measured via AR 46 o which is given by:
  • AR 46 o R 4 6o(polymer) - R 46 o(control-no polymer). The cleaner the cotton cloth the higher the reflectance, therefore the larger AR 46 o is the greater the increase in cleanliness of the cloth verses the control. The overall effectiveness is shown by the performance on cotton. The results are given in Table 3. Table 3
  • Table 4 is a detergent composition according to the invention.
  • Enzyme levels are expressed as pure protein.
  • the lipase used was Lipoclean (Novozymes); the cellulose used was CellucleanTM (Novozymes); the amylase used was StainzymeTM (Novozymes).

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention concerne un additif de lavage du linge non coloré destiné à l'amélioration de l'antiredéposition de salissures particulaires comprenant au moins deux polyéthylène-imines polyalcoxylées, qui peuvent être identiques ou différentes, réticulées l'une à l'autre par un fragment de réticulation aromatique non coloré difonctionnel; le terme non coloré étant défini en tant que coefficient maximum d'extinction en l mol-1 cm-1 inférieur à 800.
EP14700757.9A 2013-01-23 2014-01-17 Matériau additif de lessive non coloré pour la promotion d'antiredéposition de particules de saleté Active EP2948535B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14700757.9A EP2948535B1 (fr) 2013-01-23 2014-01-17 Matériau additif de lessive non coloré pour la promotion d'antiredéposition de particules de saleté

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13152412 2013-01-23
EP14700757.9A EP2948535B1 (fr) 2013-01-23 2014-01-17 Matériau additif de lessive non coloré pour la promotion d'antiredéposition de particules de saleté
PCT/EP2014/050959 WO2014114570A1 (fr) 2013-01-23 2014-01-17 Additif non coloré de lavage du linge destiné à l'amélioration de l'antiredéposition de salissures particulaires

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EP2948535A1 true EP2948535A1 (fr) 2015-12-02
EP2948535B1 EP2948535B1 (fr) 2018-03-07

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EP (1) EP2948535B1 (fr)
CN (1) CN104937090B (fr)
BR (1) BR112015016586B1 (fr)
ES (1) ES2665443T3 (fr)
WO (1) WO2014114570A1 (fr)

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CN104937090B (zh) 2018-10-09
ES2665443T8 (es) 2021-08-24
WO2014114570A1 (fr) 2014-07-31
CN104937090A (zh) 2015-09-23
BR112015016586A2 (pt) 2017-07-11
EP2948535B1 (fr) 2018-03-07
ES2665443T3 (es) 2018-04-25
BR112015016586B1 (pt) 2022-02-01

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