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WO2005118763A1 - Composition de blanchiment - Google Patents

Composition de blanchiment Download PDF

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Publication number
WO2005118763A1
WO2005118763A1 PCT/EP2005/005482 EP2005005482W WO2005118763A1 WO 2005118763 A1 WO2005118763 A1 WO 2005118763A1 EP 2005005482 W EP2005005482 W EP 2005005482W WO 2005118763 A1 WO2005118763 A1 WO 2005118763A1
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WO
WIPO (PCT)
Prior art keywords
bleaching composition
antioxidant
bleaching
alkyl
composition according
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.)
Ceased
Application number
PCT/EP2005/005482
Other languages
English (en)
Other versions
WO2005118763A8 (fr
Inventor
Adrianus Cornelis Maria Appel
Stephen Norman Batchelor
Lucas Gerard Grabijn
Ronald Hage
Stephen Jones
Joachim Lienke
Matthew Parry
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.)
Hindustan Unilever Ltd
Unilever NV
Original Assignee
Hindustan Lever Ltd
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 Hindustan Lever Ltd, Unilever NV filed Critical Hindustan Lever Ltd
Publication of WO2005118763A1 publication Critical patent/WO2005118763A1/fr
Publication of WO2005118763A8 publication Critical patent/WO2005118763A8/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C11D3/16—Organic compounds
    • C11D3/168—Organometallic compounds or orgometallic complexes
    • 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
    • C11D3/0084—Antioxidants; Free-radical scavengers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts
    • C11D3/3932—Inorganic compounds or complexes

Definitions

  • This invention relates to the enhancement of bleaching compositions.
  • a problem with the prior art is the instability of the bleaching compositions upon exposure to incident UV irradiation.
  • Another problem with the prior art is that bleaching may be ascribed to mechanisms other than the action of the bleaching catalyst acting upon a stain.
  • compositions that rely on the use of a transition metal catalyst in the substantial absence of a peroxyl species in the composition.
  • the compositions disclosed provide a post bleach effect as discussed in WO00/12808 where a stain continues to be bleached after the wash.
  • the after wash effect is due to the presence of residual trace amounts of bleaching species.
  • the bleaching species are particularly susceptible to degradation by UV.
  • the use of a sunscreen is employed. The invention is of importance where washed textiles are dried outside.
  • the present invention provides a bleaching composition comprising:
  • a photostable organic sunscreen having a C Log P value of at least 1.9 and having an extinction coefficient of greater than 2000 mol "1 cm “1 at 300 nm and an extinction coefficient of less than 100 mol "1 cm -1 at any single wavelength in the range from 400 nm at 750 nm;
  • the bleaching composition comprises an antioxidant in the range from 0.0001 to 20 wt/wt %.
  • the bleaching composition comprises a surfactant.
  • the surfactant has an HLB (hydrophilic/lipophilic balance) greater that 5, more preferably greater than 10, and most preferably greater than 15.
  • HLB hydrophilic/lipophilic balance
  • the HLB value requirement reflects the importance of the rate of solubility and dispersibility of the surfactant from the bleaching composition to the aqueous wash medium in conjunction with surface activity towards the substrate being washed.
  • the composition comprises between 1.5 to 60 wt % of a surfactant, most preferably 10 to 30 wt %.
  • a surfactant in an aqueous wash liquor the level of surfactant present in the wash liquor is between 0.05 to 5 g/1, preferably between 0.1 to 2.5 g/1, most preferably 0.5 to 1.5 g/1.
  • the role sunscreen and the antioxidant may be performed by a single entity but it is preferred the sunscreen and the antioxidant are separate entities such that the sunscreen is other than an antioxidant.
  • the term "substantially devoid of a peroxygen bleach or a peroxy-based or peroxyl-generating bleach system” should be construed within spirit of the invention. It is preferred that the composition has as low a content of peroxyl species present as possible. It is preferred that the bleaching formulation contains less that 1 % wt/wt total concentration of peracid or hydrogen peroxide or source thereof, preferably the bleaching formulation contains less that 0.3 % wt/wt total concentration of peracid or hydrogen peroxide or source thereof, most preferably the bleaching composition is devoid of peracid or hydrogen peroxide or source thereof.
  • the same low levels as specified for of peracid or hydrogen peroxide or source thereof apply to any hydroperoxides, e.g., alkyl hydroperoxides, that may be present in the bleaching composition.
  • the present invention extends to a method of bleaching a substrate/textile with a composition of the present invention. The method comprising the steps of treating a substrate with the bleaching composition in an aqueous environment, rinsing the substrate and drying the substrate.
  • the present invention also extends to a commercial package together with instructions for its use.
  • a Sunscreen in the context of the present invention is an organic compound that absorbs all or part of the UV radiation of the sun (290 to 400 nm) and converts it to heat with a high quantum yield and hence do not undergo photochemical reactions.
  • the photochemical inert nature of the sunscreen results in incident irradiation being reduced upon those moieties that do undergo photochemical reactions.
  • a sunscreen is applicable to the reduction in incident radiation from the sun and incandescent light.
  • a sunscreen may function both as an antioxidant and a sunscreen but within the scope the present application the sunscreen is preferably other than an antioxidant.
  • Antioxidants are organic chemicals that chemically quench autoxidation chain reactions. This may occur by a number of chemical routes, for example by termination of reactive radical intermediates, or by decomposition of peroxides and hydroperoxide intermediates. Protection against solar radiation can be achieved with UVA and UVB absorbing materials with high extinction coefficients. These compounds are commonly called sunscreens. However, the use of such materials is preferably limited for protection against UV radiation with a wavelength of 400nm or below as compounds with the whole or part of their spectra above 400nm will be coloured.
  • the sunscreen has a C Log P value of at least 1.9, more preferably of at least 2.5, most preferably greater than 3.5. If solid the sunscreen should be dispersed in a liquid, the liquid having a C Log P value of at least 1.9, more preferably of at least 2.5, most preferably greater than 3.5. It is preferred that the sunscreen has an upper limit C Log P value of 8.5. It is also beneficial if the liquid in which the solid sunscreen is to be dissolved is immiscible in water or only sparingly soluble. By sparingly soluble a solubility of no more than 0.04 moles/litre is meant.
  • the C Log P values were calculated using daylight software (PCModels version 4.8) available from Daylight Chemical Information Systems, Inc. Sheraton House - Castle Park - Cambridge, UK CB3 0AX.
  • an alkyl chain (s) substituent on the sunscreen serves to increase C Log P of the sunscreen and serves to aid deposition and adhesion to a relatively apolar substrate/textile. It is preferred that the sunscreen or sunscreen mixture is present at levels from 0.0005 wt% to 10 wt% of the total weight of the composition. The more preferred level of sunscreen is from 0.001 wt% to 2.5 wt %, and the most preferably 0.005 wt% to 0.5 wt %.
  • a sunscreen is described as any material which absorbs UVA or UVB radiation. It is preferred that the sunscreens have a molar extinction coefficient ( ⁇ ) of greater than 2000 mol -1 cm -1 at 300 nm, most preferably 5000 mol "1 cm -1 at 300 nm. Further it is preferred that the extinction coefficient of the sunscreen is less than 100 mol -1 cm -1 at any single wavelength in the range from 400 nm at 750 nm.
  • the sunscreen absorbs light at a wavelength from about 280-400nm.
  • sunscreens that may be employed in the present invention are: cinnamates, hydroxybenzophenones, alpha-cyanoacrylates, oxanilides, phenylsalicylates, and 2- hydroxyphenylbenzotriazoles .
  • the bleaching compositions of the present invention will also preferably comprise an effective amount of an antioxidant.
  • the antioxidant is susceptible to degradation by reacting with hydroperoxyl (ROO.) and alkoxyl (RO. ) radicals.
  • an effective amount of an antioxidant is in the range 0.001 to 20 wt/wt % depending upon the nature of the antioxidant and subsidiary purpose of the antioxidant, for example as a carrier or solvent.
  • the antioxidant is present in the range from 0.001 to 2 wt/wt %.
  • a phenolic antioxidant is present it is preferred that the phenolic antioxidant present in the range from 0.0001 to 3 % wt % of the composition.
  • an amine antioxidant it is present it is preferred that the phenolic antioxidant present in the range from 0.0001 to 20 % wt % of the composition.
  • Anti-oxidants are substances as described in Kirk-Othmers (Vol 3, pg 424) and in Uhlmans Encyclopedia (Vol 3, pg 91) .
  • One class of anti-oxidants suitable for use in the present invention is alkylated phenols having the general formula:
  • R is C1-C22 linear or branched alkyl, preferably methyl or branched C3-C6 alkyl; C3-C6 alkoxy, preferably methoxy; Rl is a C3-C6 branched alkyl, preferably tert- butyl; x is 1 or 2.
  • Hindered phenolic compounds are preferred as antioxidant.
  • Another class of anti-oxidants suitable for use in the present invention is a benzofuran or benzopyran derivative having the formula:
  • Rl and R2 are each independently alkyl or Rl and R2 can be taken together to form a C5-C6 cyclic hydrocarbyl moiety;
  • B is absent or CH2;
  • R4 is C1-C6 alkyl;
  • R5 is hydrogen or -C(0)R3 wherein R3 is hydrogen or C1-C19 alkyl;
  • R6 is C1-C6 alkyl;
  • R7 is hydrogen or C1-C6 alkyl;
  • X is - CH20H, or -CH2A wherein A is a nitrogen comprising unit, phenyl, or substituted phenyl.
  • Preferred nitrogen comprising A units include amino, pyrrolidino, piperidino, morpholino, piperazino, and mixtures thereof.
  • antioxidants are found as follows. A derivative of ⁇ -tocopherol, beta-tocopherol, gamma- tocopherol, delta-tocophero, and alkyl esters of gallic acid, especially octyl gallate and dodecyl gallate.
  • antioxidants are the class of hindered amine light stabilisers (HALS) , particularly those based 2,2, 6, 6-tetramethylpipiridines .
  • HALS hindered amine light stabilisers
  • Non-limiting examples of anti-oxidants suitable for use in the present invention include phenols inter alia 2, ⁇ -di- tert-butylphenol, 2, 6-di-tert-butyl-4-methylphenol, mixtures of 2 and 3- tert-butyl-4-methoxyphenol .
  • antioxidants may be use and in particular mixtures that have synergic antioxidant effects as found in, for example, WO02/072746.
  • Hydroperoxide Decomposing Antioxidants are compounds that cause the degradation of hydroperoxides.
  • HADs are found in the organic compounds of sulpher and trivalent phosphorous which are commercialised for stabilising compositions and are widely used in combination with phenolic antioxidants.
  • Zinc Dialkyl Dithio phosphate (ZDDP) is an example of a HAD that is used widely in the automotive oil industry.
  • ZDDP Zinc Dialkyl Dithio phosphate
  • phosphites decompose hydroperoxides at substantially lower temperatures than sulphides.
  • Triphenylphosphine, a HAD is a widely recognised reductant for hydroperoxides and functions well at ambient temperatures.
  • HALS Hindered amine light stabilisers
  • HADs Hindered amine light stabilisers
  • a review of HADs are found in: J. Pospisil, P. P. Klemchuk (Eds) Oxidation inhibition in organic materials, Vol. I. CRC Press 1990, pp. 38 to 47. It is preferred that the bleaching composition of the present invention comprises one or more HADs and most preferably in conjunction with a non-HAD antioxidant.
  • oily stains are bleached in the presence of selected transition metal catalysts in the absence of an added peroxyl source.
  • the bleaching of an oily stain in the absence of an added peroxyl source has been attributed to oxygen derived from the air. Whilst it is true that bleaching is effected by oxygen sourced from the air the route in which oxygen plays a part is becoming understood. In this regard, a catalyst that functions as such is regarded as an "air bleach catalyst".
  • the bleach catalyst per se may be selected from a wide range of transition metal complexes of organic molecules
  • the bleaching composition comprises at least 1 ppb (0.0000001 wt%) of the ligand or complex thereof, more preferably 100 ppb (0.00001 wt%), yet more preferably 500 ppb (0.00005 wt%), still more preferably about 1 ppm (0.0001 wt%) to about 5 %, still more preferably 500 ppm (0.05 wt%).
  • Suitable organic molecules (ligands) for forming complexes and complexes thereof are found, for example in:
  • ligand precursors of which are herein 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) .
  • the ligand forms a complex with one or more transition metals, in the latter case for example as a dinuclear complex.
  • Suitable transition metals include for example: manganese in oxidation states II-V, iron II-V, copper I-III, cobalt I-III, titanium II-IV, tungsten IV-VI, vanadium II-V and molybdenum II-VI.
  • Preferred transition metals are iron and manganese, in particular iron.
  • An example of a preferred catalyst is a monomer ligand or transition metal catalyst thereof of a ligand having the formula (I) :
  • each R is independently selected from: hydrogen, F, CI, Br, hydroxyl, Cl-C4-alkyl0-, -NH-CO-H, -NH-CO-C1-C4- alkyl, -NH2, -NH-Cl-C4-alkyl, and Cl-C4-alkyl;
  • Rl and R2 are independently selected from: Cl-C4-alkyl, C6-C10-aryl, and, a group containing a heteroatom capable of coordinating to a transition metal, wherein at least one of Rl and R2 is the group containing the heteroatom;
  • Rl and R2 may also be ' independently selected from: CI to C22-optionally substituted alkyl, and an optionally substituted tertiary amine of the form -C2-C4- alkyl-NR7R8, in which R7 and R8 are independently selected from the group consisting of straight chain, branched or cyclo C1-C12 alkyl, benzyl, the -C2-C4-alkyl- of the -C2-C4- alkyl-NR7R8 may be substituted by 1 to 4 Cl-C2-alkyl, or may form part of a C3 to C6 alkyl ring, and in which R7 and R8 may together form a saturated ring containing one or more other heteroatoms.
  • Another preferred class of ligands are macropolycyclic rigid ligands of the formula:
  • each A can vary independently and is preferably selected from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, C5-C20 alkyl, and one, but not both, of the A moieties is benzyl, and combinations thereof.
  • the macropolycyclic ligand is of the formula:
  • R 1 is independently selected from H, and linear or branched, substituted or unsubstituted C1-C20 alkyl, alkylaryl, alkenyl or alkynyl; and all nitrogen atoms in the macropolycyclic rings are coordinated with the transition metal.
  • the transition metal complex preferably is of the general formula (Al) :
  • M represents a metal selected from Mn (II) - (III) - (IV) - (V), Cu(I)-(II)-(III), Fe (II) - (III ) - (IV) - (V) , Co(I)-(II)- (III), Ti(II)-(III)-(IV), V(II)-(III)-(IV)-(V), Mo(II)- (III)-(IV)-(V)-(VI) and W (IV) - (V) - (VI) , preferably from Fe(II)-(III)-(IV)-(V);
  • L represents the ligand, preferably N, N-bis (pyridin-2- yl-methyl) -1, 1-bis (pyridin-2-yl) -1-aminoethane, or its protonated or deprotonated analogue;
  • X represents a coordinating species selected from any mono, bi or tri charged anions and
  • BALANCE CARRIERS AND ADJUNCT INGREDIENTS are generally surfactants, builders, foam agents, anti-foam agents, solvents, and enzymes. The use and amounts of these components are such that the bleaching composition performs depending upon economics, environmental factors and use of the bleaching composition.
  • the composition may comprise a surfactant and optionally other conventional detergent ingredients.
  • the composition may also comprise an enzymatic detergent composition which comprises from 0.1 - 50 % by weight, based on the total detergent composition, of one or more surfactants.
  • This surfactant system may in turn comprise 0 - 95 % by weight of one or more anionic surfactants and 5 to 100 % by weight of one or more nonionic surfactants.
  • the surfactant system may additionally contain amphoteric or zwitterionic detergent compounds, but this in not normally desired owing to their relatively high cost.
  • the enzymatic detergent composition according to the invention will generally be used as a dilution in water of about 0.05 to 2%.
  • nonionic and anionic surfactants of the surfactant system 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. - Ii
  • Suitable nonionic detergent compounds which may be used include, in particular, the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • Specific nonionic detergent compounds are C 6 -C 22 alkyl phenol-ethylene oxide condensates, generally 5 to 25 EO, i.e. 5 to 25 units of ethylene oxide per molecule, and the condensation products of aliphatic C 8 - Ci ⁇ primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 40 EO.
  • 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 acyl radicals.
  • suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher C 8 -Ci8 alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl C 9 -C 20 benzene sulphonates, particularly sodium linear secondary alkyl C ⁇ 0 -C ⁇ 5 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
  • the preferred anionic detergent compounds are sodium C 11 -C 1 5 alkyl benzene sulphonates and sodium C i2 -Ci8 alkyl sulphates.
  • surfactants such as those described in EP-A-328 177 (Unilever) , which show resistance to salting-out, the alkyl polyglycoside surfactants described in EP-A-070 074, and alkyl monoglycosides .
  • Preferred surfactant systems are mixtures of anionic with nonionic detergent active materials, in particular the groups and examples of anionic and nonionic surfactants pointed out in EP-A-346 995 (Unilever) .
  • surfactant system that is a mixture of an alkali metal salt of a Ci ⁇ -Ci ⁇ primary alcohol sulphate together with a 12 -C 15 primary alcohol 3-7 EO ethoxylate.
  • the nonionic detergent is preferably present in amounts greater than 10%, e.g. 25-90% by weight of the surfactant system.
  • Anionic surfactants can be present for example in amounts in the range from about 5% to about 40% by weight of the surfactant system.
  • the bleaching composition of the present invention has less that 1%, preferably less than 0.1%, most preferably less than 0.01%, of a peroxyl species present.
  • These adventitious peroxyl are predominantly alkyl hydroperoxides formed by autoxidation of the surfactants.
  • composition may contain additional enzymes as found in WO 01/00768 Al page 15, line 25 to page 19, line 29, the contents of which are herein incorporated by reference.
  • Builders, polymers and other enzymes as optional ingredients may also be present as found in WO0060045.
  • Suitable detergency builders as optional ingredients may also be present as found in WO0034427.
  • composition of the present invention may be used for laundry cleaning, hard surface cleaning (including cleaning of lavatories, kitchen work surfaces, floors, mechanical ware washing etc.).
  • bleaching compositions are also employed in waste-water treatment, pulp bleaching during the manufacture of paper, leather manufacture, dye transfer inhibition, food processing, starch bleaching, sterilisation, whitening in oral hygiene preparations and/or contact lens disinfection.
  • bleaching should be understood as relating generally to the decolourisation of stains or of other materials attached to or associated with a substrate.
  • the present invention can be applied where a requirement is the removal and/or neutralisation by an oxidative bleaching reaction of malodours or other undesirable components attached to or otherwise associated with a substrate.
  • bleaching is to be understood as being restricted to any bleaching mechanism or process that does not require the presence of light or activation by light.
  • the transition metal catalyst present in the liquid formulation was the iron chloride complex of dimethyl 2,4- di- (2-pyridyl) -3-methyl-7- (pyridin-2-ylmethyl) -3, 7-diaza- bicyclo [3.3.1] nonan-9-one-l, 5-dicarboxylate [FeCl (N2Py3o) ] CI which was prepared as described in WO0248301.
  • liquid bleaching compositions were determined at 40 °C in a H202 containing NaH2P04.H20 pH7 buffer and Acid Blue 45 (CAS No. 2861-02-1) as substrate using the following protocol.
  • the absolute changes in absorbance were correlated to activities obtained with freshly prepared calibration samples.
  • the measured activities were expressed as ⁇ Mol/1.
  • Table 1 The concentration bleach catalyst ( ⁇ Mol/1) in liquid A after irradiation in different types of bottles.
  • Bottle A PEHD +/- Clariant Sarmastab UV 9M-B@ 2% UV absorber (ex Alpla)
  • Bottle B PET 8 fl.Oz Resin 7352 +/- UV absorber 117880 (ex Owens Illinois)
  • Bottle C PET 20 fl.Oz +/- UV absorber Clearshield UV 400M (5% T@390 nm) (ex Milliken)
  • Liquid A 6 % LAS 6 % sLES 3 EO 6 % Nonionic 7 EO 0.016 % Proxel GXL 3.35 % sorbitol 2.30 % Borax.10 H20
  • Table 2 The concentration bleach catalyst ( ⁇ Mol/1) in liquid B after irradiation in different types of bottles.
  • Bottle A PEHD +/- Clariant Sarmastab UV 9M-B@ 2% UV absorber (ex Alpla)
  • Bottle B PET 8 fl.Oz Resin 7352 +/- UV absorber 117880 (ex
  • Bottle C PET 20 fl.Oz +/- UV absorber Clearshield UV 400M (5% T ⁇ 390 nm) (ex Milliken)

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

Abstract

L'invention concerne une composition de blanchiment stabilisée. La composition de blanchiment selon l'invention comprend un catalyseur à métal de transition, conjointement avec un écran UV.
PCT/EP2005/005482 2004-06-02 2005-05-17 Composition de blanchiment Ceased WO2005118763A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0412225A GB0412225D0 (en) 2004-06-02 2004-06-02 Bleaching composition
GB0412225.5 2004-06-02

Publications (2)

Publication Number Publication Date
WO2005118763A1 true WO2005118763A1 (fr) 2005-12-15
WO2005118763A8 WO2005118763A8 (fr) 2006-03-30

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AR (1) AR049290A1 (fr)
GB (1) GB0412225D0 (fr)
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044422A1 (fr) * 1996-05-23 1997-11-27 Unilever Plc Composition detergente
US20020173440A1 (en) * 2001-02-16 2002-11-21 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Bleaching composition of enhanced stability and a process for making such a composition
WO2003006593A2 (fr) * 2001-07-07 2003-01-23 Henkel Kommanditgesellschaft Auf Aktien Detergents non aqueux '3 en 1' pour lave-vaisselle
WO2005059075A1 (fr) * 2003-12-10 2005-06-30 Unilever Plc Composition liquide de blanchiment en conteneur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044422A1 (fr) * 1996-05-23 1997-11-27 Unilever Plc Composition detergente
US20020173440A1 (en) * 2001-02-16 2002-11-21 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Bleaching composition of enhanced stability and a process for making such a composition
WO2003006593A2 (fr) * 2001-07-07 2003-01-23 Henkel Kommanditgesellschaft Auf Aktien Detergents non aqueux '3 en 1' pour lave-vaisselle
WO2005059075A1 (fr) * 2003-12-10 2005-06-30 Unilever Plc Composition liquide de blanchiment en conteneur

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WO2005118763A8 (fr) 2006-03-30
AR049290A1 (es) 2006-07-12
GB0412225D0 (en) 2004-07-07

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Free format text: IN PCT GAZETTE 50/2005 REPLACE "(71) APPLICANT (FOR ALL DESIGNATED STATES EXCEPT AE, AG, ...): UNILEVER NV" BY "(71) APPLICANT (FOR AL, AM, ...., ONLY): UNILEVER NV"

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