WO2022106413A1 - Composition de nettoyage de surface dure - Google Patents

Composition de nettoyage de surface dure Download PDF

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Publication number
WO2022106413A1
WO2022106413A1 PCT/EP2021/081844 EP2021081844W WO2022106413A1 WO 2022106413 A1 WO2022106413 A1 WO 2022106413A1 EP 2021081844 W EP2021081844 W EP 2021081844W WO 2022106413 A1 WO2022106413 A1 WO 2022106413A1
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Prior art keywords
composition according
surfactant
alkyl
organic solvent
cleaning
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PCT/EP2021/081844
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English (en)
Inventor
Girish Muralidharan
Pooja TIWARI
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Unilever Ip Holdings B.V.
Unilever Global Ip Limited
Conopco, Inc., D/B/A Unilever
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Application filed by Unilever Ip Holdings B.V., Unilever Global Ip Limited, Conopco, Inc., D/B/A Unilever filed Critical Unilever Ip Holdings B.V.
Publication of WO2022106413A1 publication Critical patent/WO2022106413A1/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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/835—Mixtures of non-ionic with cationic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2082—Polycarboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
    • 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
    • C11D3/43—Solvents
    • 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
    • C11D2111/14—Hard surfaces
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2068—Ethers

Definitions

  • the present invention relates to hard surface cleaning compositions. More specifically streak free hard surface cleaning compositions comprising at least two types of surfactant as well as a method of cleaning using the same.
  • Cleaning products are well-known and play an important role in everyday life. Such products will contain surfactant and, if disinfection is desired, usually also a disinfecting agent like for example a quaternary ammonium compound.
  • Hard surface cleaning compositions are used to clean household care hard surfaces in and around the home such as windows, floors, kitchen tops and bathroom tiles.
  • Typical product formats include trigger spray compositions that are used neat out of the bottle provided with a trigger spray or general purpose cleaners that are usually diluted with water before use but can also be used neat out of the bottle and subsequently rinsed with water.
  • cleaning product may be preferred to provide the desired cleaning efficacy that may not be possible using only one type of surfactant.
  • Some cleaning compositions may require a disinfecting agent and cationic surfactants are a known ingredient for this with benzalkonium chloride being a well- known example.
  • benzalkonium chloride being a well- known example.
  • cleaning products with a good environmental profile. That is, they prefer products that are ‘eco-friendly’ and have less or no impact on the environment when the product is used. There is thus a growing need for cleaning products that mainly or only contain natural and/or biodegradable ingredients.
  • Some consumers may prefer cleaning products that do not comprise solvents with a low flash point, like for example isopropyl alcohol.
  • US 5,849,681 discloses aqueous cleaning compositions comprising a combination of at least one non-volatile organic ether compound and at least one anti-streaking alcohol compound.
  • the invention relates to an aqueous hard surface cleaning composition
  • an aqueous hard surface cleaning composition comprising
  • surfactants selected from anionic, cationic, amphoteric and nonionic surfactant wherein at least 2 types of surfactant are present;
  • the invention further relates to a method of cleaning a hard surface comprising the steps of: a. contacting the hard surface with the composition according to any one of claims 1 to 12 in neat or diluted form; b. optionally rinsing the surface with water; and c. optionally drying the surface.
  • the cleaning composition of the present invention is an aqueous cleaning composition, that is to say, the composition comprises water.
  • the amount of water will depend on the desired concentration of the other ingredients but will be at least 60 wt%, like for example at least 80 wt% or at least 90 wt%, but typically not more than 99 wt%.
  • the amount of water preferably is from 60 to 99 wt%, more preferably 80 to 98 wt% and even more preferably 90 to 97 wt%.
  • the composition will be liquid, that is it can be poured, and preferably has a water thin consistency.
  • the cleaning composition can be used for different product formats and can be offered to consumers as a ready-to-use product or as a concentrated composition that consumers can dilute at home with water to prepare the consumer-end-product.
  • the concentrated product, or ‘dilute-at-home’ product allows for an improved environmental profile as it requires less packaging because of smaller volume as well as reduced transportation cost.
  • the consumer will then add water to prepare the consumer-end-product, the latter being the product that a consumer would traditionally buy from a store.
  • Some cleaning products like e.g. floor cleaners, will usually be dosed to an amount of water to prepare a cleaning liquid that is then subsequently used immediately for cleaning.
  • the preparation of a cleaning liquid by the consumer at home is not encompassed by the term ‘dilute-at- home’.
  • the cleaning composition can be acidic, neutral or alkaline.
  • the pH is from 8 to 11 and more preferably from 10 to 11.
  • the desired pH of the cleaning formulation can suitably be achieved by using the usuable methods including the use of acids and/or bases like for example bicarbonate and citric acid.
  • the cleaning composition of the present invention comprises 0.01 to 20 wt% of 2 or more surfactants selected from anionic, cationic, amphoteric and nonionic surfactant wherein at least 2 types of surfactant are present.
  • the amount of surfactant is 0.05 to 15 wt%, and more preferably 0.1 to 10 wt%.
  • anionic surfactants will provide good foaming but some anionic surfactants may be harsher on skin.
  • Nonionic surfactants are usually good degreasers but will not generate a lot of foam.
  • Cationic surfactants can provide disinfecting properties to the formulation.
  • Amphoteric surfactants like cocamidopropyl betaine (CAPB) are good co-surfactants, whereas amine oxide is a good degreaser.
  • the cleaning composition of the present invention comprises at least 2 types of surfactants.
  • the 2 or more surfactants are selected from cationic, amphoteric and nonionic surfactant, meaning that anionic surfactant will never be present.
  • the composition may comprise cationic and nonionic surfactant; or cationic, nonionic and amphoteric surfactant.
  • the composition comprises at least a nonionic surfactant. If a disinfecting agent is desired, it may be preferred that the composition comprises at least a cationic surfactant.
  • Suitable anionic surfactants include alkyl ether sulphates, primary alcohol sulphates, alpha olefins sulphonates and alkylbenzene sulphonates.
  • Typical alkyl ether sulfates will have the formula (Ri-(OR’) n -O-SO3')xM x+ , wherein:
  • Ri is saturated or unsaturated Cs-C , preferably C12-C14 alkyl chain; preferably, R1 is a saturated Cs-C , more preferably a saturated C12-C14 alkyl chain;
  • n is from 1 to 18, preferably from 1 to 15, more preferably from 1 to 10, still more preferably from 1 to 5;
  • M x+ is a suitable cation which provides charge neutrality, preferably sodium, calcium, potassium, or magnesium, more preferably a sodium cation.
  • a suitable alkyl ether sulfate is sodium lauryl ether sulfate (SLES) also known as sodium laureth sulfate.
  • SLES sodium lauryl ether sulfate
  • alkyl sulfates are also known as alkyl sulfates.
  • alkyl sulfates include sodium lauryl sulfate, ammonium lauryl sulfate and diethanolamine (DEA) lauryl sulfate.
  • DEA diethanolamine
  • Suitable examples include alkyl sulfates from synthetic origin with trade names Safol 23, Dobanol 23A or 23S, Lial 123 S, Alfol 1412S, Empicol LC3, Empicol 075SR.
  • Further suitable examples, and preferred when alkyl sulfates are present, include alkyl sulfates commercially available from natural sources with trade names Galaxy 689, Galaxy 780, Galaxy 789, Galaxy 799 SP.
  • Linear alkylbenzene sulphonates are a well-known class of anionic surfactant.
  • these surfactants are less preferred because they are not available from a naturally derived source.
  • Suitable amphoteric surfactants include betaines and amine oxide.
  • Suitable amine oxides are alkyl dimethyl amine oxide and alkyl amido propyl dimethyl amine oxide, more preferably alkyl dimethyl amine oxide. Especially preferred are lauryl dimethylamine oxide, coco dimethyl amine oxide and coco amido propyl dimethyl amine oxide.
  • Suitable betaines include alkyl betaine, alkyl amido betaine, alkyl amidopropyl betaine, alkyl sulphobetaine and alkyl phosphobetaine, wherein the alkyl groups preferably have from 8 to 19 carbon atoms.
  • cocodimethyl sulphopropyl betaine cetyl betaine, laurylamidopropyl betaine, caprylate/caprate betaine, capryl/capramidopropyl betaine, cocam idopropyl hydroxysultaine, cocobutyramido hydroxysultaine, and preferably lauryl betaine, cocamidopropyl betaine and sodium cocamphopropionate.
  • the betaine is cocamidopropyl betaine (CAPB).
  • Suitable nonionic surfactants include alcohol ethoxylates and alkyl polyglycoside surfactant
  • Suitable alcohol ethoxylates include the condensation products of a higher alcohol (e.g. an alkanol containing about 8 to 18 carbon atoms in a straight or branched chain configuration) condensed with about 5 to 30 moles of ethylene oxide, for example, lauryl or myristyl alcohol condensed with about 16 moles of ethylene oxide (EO), tridecanol condensed with about 6 moles of EO, myristyl alcohol condensed with about 10 moles of EO per mole of myristyl alcohol, the condensation product of EO with a cut of coconut fatty alcohol containing a mixture of fatty alcohols with alkyl chains varying from 10 to about 14 carbon atoms in length and wherein the condensate contains either about 6 moles of EO per mole of total alcohol or about 9 moles of EO per mole of alcohol and tallow alcohol ethoxylates containing 6 EO to 11 EO per mole of alcohol.
  • a higher alcohol e.g. an
  • Lauryl alcohol condensed with 5, 7 and 9 moles of ethylene oxide (Laureth 5, Laureth 7 and Laureth 9).
  • the nonionic surfactant is selected from Laureth 5, Laureth 7 and Laureth 9, or mixtures thereof.
  • Condensates of 2 to 30 moles of ethylene oxide with sorbitan mono- and tri-C10-C20 alkanoic acid esters having a HLB of 8 to 15 also may be employed as the nonionic surfactant.
  • These surfactants are well known and are available from Imperial Chemical Industries under the Tween trade name. Suitable surfactants include polyoxyethylene (4) sorbitan monolaurate, polyoxyethylene (4) sorbitan monostearate, polyoxyethylene (20) sorbitan trioleate and polyoxyethylene (20) sorbitan tristearate.
  • the non-ionic surfactant is biodegradable and even more preferably the nonionic surfactant is both natural and biodegradable.
  • the nonionic surfactant comprises alkyl polyglycoside surfactant and more preferably the non-ionic surfactant is alkyl polyglycoside surfacant.
  • alkyl polyglycosides are compounds having formula I: R1O(R2O)b(Z) a , wherein R1 is a alkyl radical, having from about 1 to about 30 carbon atoms; R2 is an alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; and a is a number having a value from 1 to about 6 (the degree of polymerization).
  • alkyl polyglycosides are generally present as mixtures of alkyl polyglycosides having varying amounts of carbon atoms in the alkyl radical and varying degrees of polymerization.
  • the alkyl radical is generally referred to as having a range of carbon atoms (e.g. C4/22 referring to a range of alkyl radicals having from 4-22 carbon atoms) and the degree of polymerization is generally referred to as the average degree of polymerization of the mixture.
  • the non-ionic surfactant comprises alkyl polyglucoside surfactant and more preferably the non-ionic surfactant is alkyl polyglucoside surfacant.
  • Preferred alkyl polyglycosides suitable for use in the disclosed cleaning formulation include those having the formula I wherein Z is a glucose residue, b is zero, R1 is an alkyl group that contains 4 to 22 carbon atoms, and the average value of a is about 1-2. Preferably R1 is an alkyl group that contains 8 to 16 carbon atoms, and the average value of a is about 1-2.
  • Such alkyl polyglucosides are commercially available, for example, as GLUCOPON branded alkyl polyglucoside compositions from Cognis Corporation.
  • Cationic surfactants are commercially available, for example, as GLUCOPON branded alkyl polyglucoside compositions from Cognis Corporation.
  • Suitable cationic surfactants will encompass quaternary ammonium compounds.
  • quaternary ammonium compounds include, for example, alkyl ammonium halides such as cetyl trimethyl ammonium bromide, alkyl aryl ammonium halides such as octadecyl dimethyl ammonium bromide, N-alkyl pyridinium halides such as N-cetyl pyridinium bromide, and the like.
  • One suitable type of quaternary ammonium compound includes, for example, those in which the molecules contain amine, ether or ester linkages such as octyl phenoxy ethoxy ethyl dimethyl benzyl ammonium chloride, N-(laurylcocoaminoformylmethyl)-pyridinium chloride, and the like.
  • quaternary ammonium compound include, for example, those in which the hydrophobic radical is characterized by a substituted aromatic nucleus as the case of lauryloxyphenyltrimehyl ammonium chloride, cetylaminophenyltrimethyl ammonium methosulfate, dodecylphenyltrimethyl ammonium methosulfate, dodecylbenzyltrimethylammonium chloride, chlorinated dodecylbenzyltrimethyl ammonium chloride, and the like.
  • the quaternary ammonium compound utilized in the practice of the present technology exhibit biocidal activity or are biocidal in nature.
  • Particularly useful quaternary ammonium compound germicides include compositions which include a single quaternary compound, as well as mixtures of two or more different quaternary compounds.
  • Such useful quaternary compounds are available under the EMPIGEN, BARDAC, BARQUAT, HYAMINE, LONZABAC, and ONYXIDE trademarks, which are more fully described in, for example, McCutcheon's Functional Materials (Vol. 2), North American Edition, 1998, as well as the respective product literature from the suppliers identified below.
  • BARDAC 205M is described to be a liquid containing alkyl dimethyl benzyl ammonium chloride (Benzalkonium chloride, BKC), octyl decyl dimethyl ammonium chloride; didecyl dimethyl ammonium chloride, and dioctyl dimethyl ammonium chloride (50% active) (also available as 80% active (BARDAC 208M)); described generally in McCutcheon's as a combination of alkyl dimethyl benzyl ammonium chloride and dialkyl dimethyl ammonium chloride); BARDAC 2050 is described to be a combination of octyl decyl dimethyl ammonium chloridedidecyl dimethyl ammonium chloride, and dioctyl dimethyl ammonium chloride (50% active) (also available as 80% active (BARDAC 2080)); BARDAC 2250 is described to be didecyl dimethyl ammonium chloride (50% active); BARDAC LF
  • HYAMINE 1622 described as diisobutyl phenoxy ethoxy ethyl dimethyl benzyl ammonium chloride (50% solution); HYAMINE 3500 (50% actives), described as alkyl dimethyl benzyl ammonium chloride (also available as 80% active (HYAMINE 3500-80)); and HYMAINE 2389 described as being based on methyldodecylbenzyl ammonium chloride and/or methyldodecylxylene- bis-trimethyl ammonium chloride.
  • BTC 50 NF (or BTC 65 NF) is described to be alkyl dimethyl benzyl ammonium chloride (50% active); BTC 99 is described as didecyl dimethyl ammonium chloride (50% active); BTC 776 is described to be myrisalkonium chloride (50% active); BTC 818 is described as being octyl decyl dimethyl ammonium chloride, didecyl dimethyl ammonium chloride, and dioctyl dimethyl ammonium chloride (50% active) (available also as 80% active (BTC 818-80%)); BTC 824 and BTC 835 are each described as being of alkyl dimethyl benzyl ammonium chloride (each 50% active); BTC 885 is described as a combination of BTC 835 and BTC 818 (50% active) (available also as 80% active (B
  • Benzyl-C12-14-alkyldimethylammonium chlorides benzyl C12-C16- alkyl dimethyl chlorides also available as EMPIGEN BAC 50 and EMPIGEN BAC 80. It is an aqueous solution of benzalkonium chloride at ca. 50% or 80% in water respectively.
  • EMPIGEN BAG 50 and EMPIGEN 80 are readily biodegradable, EMPIGEN is commercially available from Innospec Performance Chemicals
  • Polymeric quaternary ammonium salts based on these monomeric structures are also considered desirable for the present invention.
  • One example is POLYQUAT, described as being a 2-butenyldimethyl ammonium chloride polymer.
  • the cationic surfactant is alkyl dimethyl benzyl ammonium chloride (i.e. benzalkonium chloride).
  • cationic surfactants When cationic surfactants are present it is preferred that no anionic surfactants are present as these may negatively influence the biocidal activity of the cationic surfactant.
  • the cleaning composition of the present invention comprises 1 to 10 wt% organic solvent, wherein the organic solvent has a flash point of at least 30 °C, surface tension of up to 31 mN/m and a polarity of at least 4 mN/m.
  • the amount of organic solvent is 0.25 to 5 wt%, preferably 0.5 to 3 wt%.
  • the flash point of the organic solvent is defined as the lowest temperature at which its vapours ignite if given an ignition source.
  • the flash point refers to the flash point of the organic solvent perse.
  • the organic solvent has a flash point of at least 30 °C, like for example between 30 and 150 °C.
  • the flash point is at least 35 °C, like for example between 35 and 150 °C.
  • the flash point is at least 40 °C, like for example between 40 and 150 °C.
  • the cleaning composition comprises from 0 to 0.1 wt% solvent having a flash point of up to 15 °C, preferably up to 20 °C and more preferably up to 30 °C.
  • An example of such a solvent is isopropyl alcohol having a flash point of 11.7 °C.
  • the composition is free of solvent having a flash point of up to 15 °C, more preferably up to 20 °C and even more preferably up to 30 °C.
  • Suitable organic solvents include those selected from glycol ethers, ketones, diols, fatty acid esters, alcohols and combinations thereof.
  • the organic solvent is a glycol ether.
  • Surface tension refers to surface tension of the organic solvent as determined at 25 °C. These values are readily available and can e.g. be found in handbooks and on supplier data sheets. Surface tension values depends on the characterization method like Wilhelmy plate, Du Nuoy ring method, Bubble drop method and many more. For the purpose of the invention surface tension refers to the value determined using the Wilhelmy plate method for measuring surface tension.
  • the organic solvent has a surface tension of up to 31 mN/n, so for example between 20 and 31 mN/m.
  • the organic solvent has a surface tension of up to 30 mN/m, like for example between 20 and 30 mN/m. More preferably of up to 28 mN/m, like for example between 20 and 28 mN/m.
  • the polarity value refers to the polar component of the well-known Hansen Solubility Parameters determined at 25 °C and expressed in mN/m. These values are readily available and can e.g. be found in handbooks and on supplier data sheets.
  • the organic solvent has a polarity of at least 4 mN/m, like for example between 4 and 10 mN/m. Preferably the polarity is at least 5 mN/m, like for example between 5 and 10 mN/m. More preferably the solvent has a polarity of at least 6 mN/m, like for example between 6 and 10 mN/m.
  • Suitable solvents include for example;
  • ethylene glycol n-butyl ether e.g. available under the trade name Butyl CellosolveTM
  • flashpoint 65 °C surface tension 27.4 mN/m and polarity 7.6 mN/m;
  • ethylene glycol propyl ether e.g. available under the trade name Propyl CellosolveTM
  • flashpoint 51 °C surface tension 26.3 mN/m
  • polarity 8.0 mN/m polarity 8.
  • dipropylene glycol dimethyl ether e.g. available under the trade name ProglydeTM DMM: flashpoint 65 °C, surface tension 26.3 mN/m and polarity 2.1 mN/m;
  • N,N-dimethyl 9-decenamide e.g. available under the trade name Steposol® MET- 10U: flashpoint 134 °C, surface tension 31.5 mN/m and polarity 9.58 mN/m;
  • the cleaning composition of the present invention comprises 0.1 to 10 wt% sequestrant.
  • the amount of sequestrant is 0.25 to 5 wt%, preferably 0.5 to 3 wt%.
  • the sequestrant has a binding capacity of at least 290 mg CaCCh/g and preferably at least 300 mg CaCCh/g.
  • EDTA ethylenediaminetetraacetic acid
  • the binding capacity is measured at pH 11 and expressed as mg CaCCh/g.
  • Suitable sequestrants are those based on organophosphonates, aminopolycarboxylates and carboxylic acids. It will be understood that suitable sequestrants include both the acid form and salts thereof. Examples of sequestrants based on organophosphonates include diethylenetriamine penta(methylene phosphonic acid) (DTPMP), hydroxyethylidenediphosphonic acid (HEDP), and nitrilotrimethylenephosphonic acid (NTMP).
  • DTPMP diethylenetriamine penta(methylene phosphonic acid)
  • HEDP hydroxyethylidenediphosphonic acid
  • NTMP nitrilotrimethylenephosphonic acid
  • sequestrants based on aminopolycarboxylates include ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), nitrilotriacetic acid (NTA), methylglycine diacetic acid (MGDA), and L-Glutamic acid N,N diacetic acid (GLDA).
  • EDTA ethylenediaminetetraacetic acid
  • DTPA diethylenetriaminepentaacetic acid
  • NTA nitrilotriacetic acid
  • MGDA methylglycine diacetic acid
  • sequestrants based on carboxylic acids include gluconic acid and itaconic acid.
  • the sequestrant is biodegradable.
  • Preferred biodegradable sequestrants are nitrilotriacetic acid (NTA), ethylenediaminedisuccinic acid, (EDDS), iminodisuccinic acid, (IDS), methylglycine diacetic acid, (MGDA), L-Glutamic acid N.Ndiacetic acid (GLDA), 2-hydroxyethyliminodiacetic acid (HEIDA), ethylenediamine-N,N'-dimalonic acid (EDDM), ethylenediamine-N,N'-diglutaric acid (EDDG), 3-hydroxy-2,2- iminodisuccinic acid (HIDS), and 2,6-pyridine dicarboxylic acid (PDA), gluconic acid and itaconic acid.
  • NTA nitrilotriacetic acid
  • EDDS ethylenediaminedisuccinic acid
  • IDDS iminodisuccinic acid
  • MGDA L-Glutamic
  • the cleaning composition comprises sequestrant that is selected from gluconic acid, itaconic acid and combinations thereof.
  • the invention also relates to a method of cleaning a hard surface comprising the steps of: a. contacting the hard surface with the composition of the invention; b. optionally rinsing the surface with water; and c. optionally drying the surface.
  • Hard surface typically means like windows, floors, kitchen tops and bathroom tiles.
  • the composition of the invention is applied onto a hard surface in neat or diluted form.
  • the composition may be applied by any known ways such as by using a cleaning implement, such as scrub, sponge paper, cloth, wipes or any other direct or indirect application.
  • the applied composition may be cleaned using a cleaning implement such as a scrub, sponge, paper, cloth or wipes with or without water, or rinsed off with water.
  • the composition may be used as a ready-to-use product or as a dilute-at-home product for cleaning of household hard surfaces like windows, floors, kitchen tops and bathroom tiles.
  • a ready-to-use cleaning spray like a kitchen spray may preferably be provided in a trigger spray bottle.
  • a dilute-at-home product the consumer will first have to dilute the composition with water to provide a stock cleaning composition, preferably by diluting it 5 to 15 times with water, more preferably 8 to 12 times and even more preferably 10 times.
  • the composition may be packaged in the form of any commercially available bottle for storing the liquid.
  • the bottle containing the liquid can be of different sizes and shapes to accommodate different volumes of the liquid; preferably between 0.05 and 5 L with ready-to-use products typically 0.1 and 1.5 L or even between 0.25 and 1 L and dilute- at home products preferably between 0.05 and 0.2 L.
  • the bottle is preferably provided with a dispenser, which enables the consumer an easier mode of dispersion of the liquid. Spray or pump-dispensers may also be used.
  • Formulations according to Table 1 were prepared. The formulations were subjected to a streak test as described below. The results of the streak test can be found in Table 1.
  • Streak T est A ceramic tile having dimension of 15 x 15 cm is prepared by immersing it in deionized water for one hour. To test if the tile is completely hydrophilic, deionized water is poured over the tile. Complete hydrophilicity is ensured if water does not split while pouring water over the tile. If the tile is not yet completely hydrophilic it is immersed in deionized water for a further hour. • When the tile is completely hydrophilic, the tile is wiped dry with a paper tissue.
  • a Ballerina cloth having dimension of 10 x 10 cm weighing 1.3 g (Ballerina cloth consists of 70% viscose fibre, 18% polypropylene and 12% polyester) is wetted with an amount of 24FH water 3 times the weight of cloth. • 0.4 ml of the cleaning solution is poured over the tile using a micropipette.
  • the tile is then visually inspected for presence of streaks under focussed light and rated on a scale of 1 to 5 with 1 indicating no streaks and 5 indicating full of streaks.

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Abstract

La présente invention concerne une composition aqueuse de nettoyage de surfaces dures comprenant au moins deux tensioactifs choisis parmi un tensioactif anionique, cationique, amphotère et non ionique, au moins 2 types de tensioactif étant présents ; un solvant organique ; et un agent séquestrant ; le solvant organique ayant un point d'éclair d'au moins 30 °C, une tension de surface allant jusqu'à 31 mN/m et une polarité d'au moins 4 mN/m ; et le séquestrant ayant une capacité de liaison d'au moins 290 mg CaCO3/g.
PCT/EP2021/081844 2020-11-19 2021-11-16 Composition de nettoyage de surface dure WO2022106413A1 (fr)

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PCT/EP2021/081844 WO2022106413A1 (fr) 2020-11-19 2021-11-16 Composition de nettoyage de surface dure

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332874A (en) * 1965-12-23 1967-07-25 Procter & Gamble Detergent composition
EP0691397A2 (fr) * 1994-07-07 1996-01-10 The Clorox Company Produit de nettoyage antimicrobien pour surface dure
US5849681A (en) 1996-02-09 1998-12-15 S. C. Johnson & Son, Inc. Glass cleaner with enhanced anti-streaking properties
EP1148116A1 (fr) * 2000-04-14 2001-10-24 Alticor Inc. Composition détergente pour surfaces dures
US20080010772A1 (en) * 2000-12-14 2008-01-17 Kong Stephen B Low Residue Cleaning Solution
WO2009078867A1 (fr) * 2007-12-18 2009-06-25 Colgate-Palmolive Company Compositions et procédés de nettoyage universel dégraissants
US20200199490A1 (en) * 2018-12-20 2020-06-25 Ecolab Usa Inc. Surfactant blend for removal of fatty soils

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332874A (en) * 1965-12-23 1967-07-25 Procter & Gamble Detergent composition
EP0691397A2 (fr) * 1994-07-07 1996-01-10 The Clorox Company Produit de nettoyage antimicrobien pour surface dure
US5849681A (en) 1996-02-09 1998-12-15 S. C. Johnson & Son, Inc. Glass cleaner with enhanced anti-streaking properties
EP1148116A1 (fr) * 2000-04-14 2001-10-24 Alticor Inc. Composition détergente pour surfaces dures
US20080010772A1 (en) * 2000-12-14 2008-01-17 Kong Stephen B Low Residue Cleaning Solution
WO2009078867A1 (fr) * 2007-12-18 2009-06-25 Colgate-Palmolive Company Compositions et procédés de nettoyage universel dégraissants
US20200199490A1 (en) * 2018-12-20 2020-06-25 Ecolab Usa Inc. Surfactant blend for removal of fatty soils

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"McCutcheon's Functional Materials", vol. 2, 1998

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