WO2017215845A1 - Composition de nettoyage des surfaces dures comportant un tensioactif et un adjuvant alcalin - Google Patents

Composition de nettoyage des surfaces dures comportant un tensioactif et un adjuvant alcalin Download PDF

Info

Publication number
WO2017215845A1
WO2017215845A1 PCT/EP2017/060990 EP2017060990W WO2017215845A1 WO 2017215845 A1 WO2017215845 A1 WO 2017215845A1 EP 2017060990 W EP2017060990 W EP 2017060990W WO 2017215845 A1 WO2017215845 A1 WO 2017215845A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
abrasive
surfactant
weight
compositions
Prior art date
Application number
PCT/EP2017/060990
Other languages
English (en)
Inventor
Manoj Vilas Dagaonkar
Saikumar Earla
Somnath Ghosh
Srilaxmi Venkata Medepalli
Rohini Sukumaran NAIR
Kunal Dhirajlal SHAH
Original Assignee
Unilever N.V.
Unilever Plc
Conopco, Inc., D/B/A Unilever
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever N.V., Unilever Plc, Conopco, Inc., D/B/A Unilever filed Critical Unilever N.V.
Priority to BR112018075122-7A priority Critical patent/BR112018075122B1/pt
Publication of WO2017215845A1 publication Critical patent/WO2017215845A1/fr
Priority to ZA2018/07558A priority patent/ZA201807558B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12—Powders or granules
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/044—Hydroxides or bases
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/14—Fillers; Abrasives ; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures
    • 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
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/1233—Carbonates, e.g. calcite or dolomite

Definitions

  • the invention relates to a composition for cleaning hard surfaces, more particularly for rendering toilet bowls more hygienic by controlling bacterial growth.
  • compositions for cleaning inanimate hard surfaces. Such surfaces would include bathrooms, toilet bowls and kitchens, which are made of a variety of hard materials such as enamel, ceramic, and porcelain.
  • the types of stains usually encountered in lavatories, toilets and bathrooms include lime scale deposits, soap scum and organic soil. In addition to this, there is significant growth of bacteria in and around toilet bowls.
  • compositions that are commercially available for cleaning toilets include acidic cleaners, phenyl and bleach-based cleaners.
  • Some high-end toilet cleaning compositions include gels and pastes.
  • Acidic compositions are particularly effective against lime scale.
  • Bleach-based compositions are effective against stains. However, these compositions are harsh.
  • WO09085049 A1 discloses a cleaning composition containing an organic acid, an ethoxylated alcohol and a hydrophilic polymer that adsorbs onto hard surfaces.
  • US2009197786 A discloses hard surface cleaning compositions particularly adapted to clean toilets. The compositions are aqueous, thickened, acidic compositions having acid, a thickening constituent, a detersive surfactant and at least one super-wetter surfactant based on a narrow range ethoxylated alcohol nonionic surfactant having two cloud points.
  • WO12049202A1 discloses a powdery cleaning agent containing at least one acid, at least one water-soluble carbonate and at least one biocide for cleaning flush toilets and washing machines.
  • US6387868B (Uno Shoyu Co. Ltd, 2002) discloses clear aqueous liquid detergents containing an alkyl benzene sulfonate surfactant, liquid sodium silicate, a polyoxyethylene alkyl or aryl ether nonionic surfactant and an alkyl ether sulfate surfactant.
  • the silicate boosts detergency.
  • This composition is a fabric washing composition, which is dilutable and dissolves in water without becoming cloudy over long period.
  • the presence of nonionic and anionic surfactants provide stability.
  • the pH of these compositions is about 7 to 8.
  • EP0379093A1 (Sterling Drug Inc, 1990) discloses highly alkaline, yet non-corrosive, aqueous hard surface cleaning compositions for cleaning industrial and kitchen surfaces soiled with burnt-on grease and other organic soils. Combination of alkanolamine to metasilicate in critical ratios along with certain other essential ingredients provide the desired technical effect.
  • proxy products In some parts of the world, people use proxy products to clean their toilets. Such proxy products include low-priced detergent powders. Alternatively, some do use bleaching powders, acids, phenyls or even leftover detergent wash-liquor. While such products do provide some degree of cleaning, they are not prepared to cater to such secondary uses. Therefore, users of such products get sub-optimal cleaning in spite of significant efforts and inconvenience. Further, the users are at risk of exposing themselves to, or coming in contact with human waste, and variety of pathogenic microbes, mainly Gram Positive and Gram Negative bacteria that thrive under unhygienic conditions.
  • compositions which are capable of acting against Gram Positive as well as Gram Negative bacteria within a reasonable time e.g., 10 to 30 minutes of application, without the need to alter the habits of such consumers.
  • the compositions should be bleach-free so that consumer-awareness and product literacy need not become a concern for new users. Further, such products need to be sustainable, utilising less of non-renewable resources like synthetic surfactants.
  • a cleaning powder comprising 70 to 90 % by weight ground dolomite, 1 to 5 % by weight soda ash, 1 to 5% sodium
  • the cleaning powder provides stain-free cleaning and is not harsh to human skin.
  • An abrasive cleaning formulation disclosed in Modern Chemical Specialties contains 5 % by weight coconut oil soap, 2.5 % by weight sodium silicate, 3.5 % by weight soda ash and 85 % by weight abrasives.
  • compositions in accordance with this invention are significantly more effective against Gram Positive as well as Gram Negative bacterium and removal of soil.
  • a bleach-free powder composition for cleaning hard surfaces comprising:
  • a non-phosphate builder having Reserve Alkalinity less than 40 ml of 0.1 N HCI in 1 % aqueous solution; and, (iii) a first abrasive having Mohs Index of 3 to 5 and a second abrasive having Mohs Index of 5.5 to 7, collectively amounting to 15 to 70 % by weight of said composition, wherein ratio between amount of said surfactant to that of said builder is 1 :0.5 to 1 :25.
  • % by weight denotes the percentage by weight of the composition.
  • the total surfactant content of compositions in accordance with this invention is 1 to 5 % by weight, which means that 100 g of a composition contain 1 to 5 g surfactant.
  • inanimate hard surfaces includes surfaces which are particularly prone to bacterial growth such as floors, walls, tiles, sinks, shower plastified curtains, wash basins, bidets and toilet bowls of Western or Indian-style toilets.
  • animate hard surfaces include teeth.
  • the compositions in accordance with this invention are useful for toilet cleaning, the compositions could be used to clean any other inanimate hard surface.
  • High-priced products may provide up to 5-log reduction in the viable bacterial count when tested according to European Suspension Test BS EN 1276. However, it is an arduous task to provide such a high level of hygiene, unless the compositions contain significant amount of acid, bleach, antibacterial agents and other active ingredients. Research indicates that at least 2-log reduction, i.e., 99 % reduction in viable count of bacteria, especially the pathogenic ones, is necessary for minimal hygiene. Gram-positive and Gram-negative bacteria thrive under unhygienic conditions. S.aureus and E.hirae are the most common Gram Positive bacteria whereas P. aeruginosa and E.coli are the most common Gram Negative type.
  • compositions in accordance with this invention on contact with an inanimate hard surface comprising thereon at least one Gram positive bacteria selected from S.aureus and E.hirae and at least one Gram Negative bacteria selected from
  • P.aeruginosa and E.coli provide, in accordance with BS EN 1276 protocol, at least 2-log reduction in viable count of at least one of the Gram positive bacteria and at least one of the Gram negative bacteria.
  • compositions in accordance with preferred aspect of this invention provide at least 5-log reduction in the viable count of at least one of each kind when tested according to European Suspension Test BS EN 1276.
  • EN 1276 Standard describes a quantitative suspension test for the assessment of the bactericidal activity of chemical antiseptics and disinfectants. This test method evaluates how effectively a product causes reduction in number of viable bacterial cells of the relevant test microorganisms.
  • non-bleach, non-acidic hard surface cleaning composition is a technical problem, especially if the products need to be sustainable and provide at least 2- log reduction in viable bacterial count of at least one Gram Positive bacteria and at least one Gram Negative bacteria.
  • compositions in accordance with the invention are bleach-free.
  • bleach-free is meant that the compositions comprise (cumulatively) less than 1 % by weight conventional bleaching ingredients.
  • Such ingredients include hypochlorites, sulphites, bisulphites, metabisulphites, isocyanurates, persulphates, percarbonates, peroxides, perborates and other bleach ingredients.
  • compositions in accordance with this invention comprise not more than 3 % by weight moisture, as moisture may affect stability.
  • compositions in accordance with this invention comprise 1 to 5 % by weight non- soap anionic surfactant.
  • the total amount is significantly less than that of conventional products, therefore the composition contributes to sustainability by being lesser reliant on non-renewable resources.
  • non-soap anionic surfactant is well-known in the field of detergents and cleaning products. This term is used to distinguish non-soap anionic surfactants from their counterpart surfactants based on soaps, i.e., alkali metal salts of fatty carboxylic acids.
  • the non-soap anionic surfactant provides basic cleaning action. It is preferred that the non-soap anionic surfactant is at least one of linear alkyi benzene sulphonate, an alkoxylated primary alcohol sulphate, a non-alkoxylated primary alcohol sulphate, an olefin sulphonate, an ester sulphonate or a secondary alcohol sulphate.
  • non-soap anionic surfactant is non-alkoxylated surfactant, preferably a linear alkyi benzene sulphonate, preferably having carbon chain length of Cs-2o.
  • the counter ion for anionic surfactants is an alkali metal, typically sodium, although instead of alkali metals, other amine based counter ions can also be present.
  • Preferred linear alkyi benzene sulphonate surfactants include sodium salt of linear alkyi benzene sulphonates with an alkyi chain length of from 8 to 15, more preferably 12 to 14.
  • the anionic surfactant is an alkoxylated primary alcohol sulphate, generally represented by the formula RO(C2H40) x SO3 " M + where 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 9, preferably x is 1 to 7.
  • the alkoxylated anionic surfactant is sodium lauryl ether sulphate (SLES).
  • the sodium salt of lauryl ether sulphonic acid in which the predominantly C12 lauryl group ethoxylated with an average of 1 to 5 moles of ethylene oxide units per mole.
  • the non-alkoxylated primary alcohol sulphates are devoid of any alkoxylated groups.
  • An example is sodium lauryl sulphate.
  • the non-soap anionic surfactant is linear alkyl benzene sulphonate.
  • non-soap anionic surfactants useful in the compositions in accordance with this invention are water-soluble alkali metal salts of organic sulphates 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.
  • alkyl being used to include the alkyl portion of higher acyl radicals.
  • Examples include sodium and potassium alkyl sulphates, especially those obtained by sulphating higher C8 to C18 alcohols, produced for example from tallow or coconut oil, sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum, ester sulphonates and the alpha-olefin sulphonates.
  • compositions in accordance with the invention comprises, cumulatively, less than 1 % by weight of surfactants, other than said non-soap anionic surfactant.
  • surfactants include soap, non-ionic, cationic and zwitterionic surfactants. This is to prevent, or at least reduce to the extent possible, any unwanted interaction with other ingredients.
  • compositions in accordance with this invention comprise a non-phosphate builder whose Reserve Alkalinity is less than 40 ml of 0.1 N HCI in 1 % aqueous solution. It is preferred that compositions in accordance with the invention comprise 1 to 15 % by weight of said builder. It is preferred that the non-phosphate builder is at least one of sodium hydroxide or sodium carbonate.
  • compositions comprising either one of them are not as effective.
  • the ratio between amount of the surfactant to that of the builder is 1 :0.5 to 1 :25.
  • non-phosphate builder having Reserve Alkalinity more than 40 ml of 0.1 N HCI is less than 1 % by weight.
  • Such builders include sodium aluminate, sodium disilicate, sodium silicate and sodium metasilicate.
  • Mohs Index was developed for minerals to classify according to their hardness, from 1 (the softest) to 10 (the hardest) and has been used by mineralogists since its inception. It is preferred that the abrasive having Mohs Index of 3 or more is at least one of calcite, dolomite, sodium sulphate, feldspar, apatite, fluorite, hematite, kyanite, magnetite, orthoclase or pumice. It is particularly preferred that the abrasive is a combination of calcite and dolomite. The abrasive may form, and preferably does form, a large portion of the balance of the compositions in accordance with this invention.
  • compositions in accordance with this invention comprise two different abrasives, differing in their abrasive index.
  • the compositions comprise a first abrasive having Mohs Index of 3 to 5 and a second abrasive having Mohs Index of 5.5 to 7, collectively amounting to 15 to 70 % by weight of the composition. It is further preferred that the ratio of the amount of the first abrasive having Mohs Index of 3 to 5 to that of the a second abrasive having Mohs Index of 5.5 to 7 is in the range of 1 :0.3 to 1 :0.6. It is preferred that the first abrasive is dolomite (Mohs Index 3.5 to 4) and the second abrasive is feldspar (Mohs Index 6 to 6.5).
  • the amount of the first abrasive is 40 to 60 % by weight of the composition. Yet further preferably the amount of the second abrasive is 15 to 30 % by weight of the composition.
  • compositions in accordance with this invention comprise an inorganic salt selected from sodium chloride, potassium chloride, sodium sulphate or potassium sulphate. It is more preferred that the salt is sodium chloride or sodium sulphate. When present, it is preferred that the amount of the salt is 5 to 15 % by weight of the composition.
  • compositions as claimed in claim 1 as an antibacterial toilet cleaner. It is preferred that the composition provides in accordance with BS EN 1276 protocol, at least 2-log reduction in viable count of at least one Gram positive bacteria selected from S.aureus and E.hirae and at least one Gram negative bacteria selected from P. aeruginosa and E.coli. It is further preferred that after application, said composition is allowed contact time of at least 10 to 30 minutes. In case of using the composition for cleaning toilet bowls, the said composition can be applied to the surface and spread effectively with the help of a scrubber, left for few minutes, e.g., 10 to 30 minutes, and then washed with water.
  • the said composition can be applied to the surface and spread effectively with the help of a scrubber, left for few minutes, e.g., 10 to 30 minutes,, and then rinsed with water.
  • composition of the first aspect wherein on contact with an inanimate hard surface comprising thereon at least one Gram positive bacteria selected from S.aureus and E.hirae and at least one Gram Negative bacteria selected from P. aeruginosa and E.coli, said composition provides, in accordance with BS EN 1276 protocol, at least 2-log reduction in viable count of at least one of said Gram positive bacteria and at least one of said Gram negative bacteria.
  • the invention provides a method of cleaning an inanimate hard surface comprising thereon at least one Gram positive bacteria selected from S.aureus and E.hirae and at least one Gram Negative bacteria selected from P.aeruginosa and E.coli to bring about at least 2-log reduction in viable count of at least one of said Gram positive bacteria and at least one of said Gram negative bacteria in accordance with BS EN 1276 protocol, said method comprising:
  • the contact is for 15 to 30 minutes.
  • compositions in accordance with the invention bring about at least 80 % reduction in toilet malodour when tested with a model malodour mix containing cresols, glycol, dimethyl disulfide and n-methyl morpholine in propylene glycol solvent.
  • the test involves addition of the malodor mix in a container, contact with the composition for 30 minutes, followed by analysis using GCMS.
  • the test method evaluates how effectively a product causes reduction in headspace malodor.
  • compositions of the invention may optionally comprise other ingredients, such as fragrance, colorant, foam boosting agents, odour absorbing materials, preservatives (e.g. bactericides), pH buffering agents, anti-oxidants and anti-corrosion agents.
  • ingredients such as fragrance, colorant, foam boosting agents, odour absorbing materials, preservatives (e.g. bactericides), pH buffering agents, anti-oxidants and anti-corrosion agents.
  • compositions in accordance with this invention comprise a colour-change system, which preferably comprises granular encapsulates comprising colouring agent such as a dye or pigment, which releases its colour on contact with water, which happens in-use.
  • colouring agent such as a dye or pigment
  • compositions according to the invention could be packed in any suitable container.
  • the compositions are packaged in an air-tight plastic bottle with a detachable closure /pouring spout.
  • the bottle may be rigid or deformable.
  • the container is clear enough so that visual cues, like the colour changing actives, if any, are visible from outside.
  • the bottle may be provided with one or more labels, or with a shrink sleeve which is desirably at least partially transparent, for example 50 % of the area of the sleeve is transparent.
  • the adhesive used for any transparent label should preferably not adversely affect transparency.
  • Example 1 Comparative Examples with Compositions outside the Invention
  • the concerned test bacterium was grown overnight at 37 ° C on a TSA (Tryptic Soya Agar) plate. The grown culture colonies were suspended again in tryptone diluent. Density of the culture was adjusted to get final count of 1.5-5.0 x 10 8 cfu/ml based on McFarland standards (McFarland 1 .5 measured using bioMerieux Densomat®).
  • test solution was placed into test wells in a micro-titre plate.
  • Equal volumes of test culture and bovine serum albumin (interfering substance) were combined for two minutes, before 60 ⁇ of the mixture being added to the test solution.
  • 30 ⁇ of the mixture was mixed with a neutralising solution.
  • This solution was then serially diluted in tryptone soya broth and then spot- plated onto TSA plates. After absorption, the plates were incubated at 37 ° C for 24 hours and the residual colonies were counted. All the experiments were done under aseptic conditions and all media were autoclaved at 15 psi pressure before use. The extent of reduction in bacterial count was calculated by taking into account the difference between initial and final cfu/ml values.
  • Example 2 Compositions in accordance with prior art
  • Comparative examples A and B were tested for efficacy against S. aureus and P. aeruginosa.
  • Example 3 Compositions inside the invention Three compositions within the scope of the invention were tested as described earlier. The compositions are shown in Table 5 and the observations (recorded at the end of 30 minutes) are shown in Table 6.
  • Comparative Examples A, B and C and Composition no. 8 were tested for efficacy of bathroom soil.
  • a model bathroom soil composition containing calcium stearate was sprayed on enamel tiles for uniform deposition and then baked at a certain temperature for a fixed amount of time.

Abstract

La présente invention concerne une composition de poudre sans agent de blanchiment comprenant : (i) de 1 à 5 % en pds d'un tensioactif anionique sans savon ; et, (ii) d'un adjuvant sans phosphate présentant une alcalinité de réserve inférieure à 40 ml de HCl 0,1 N dans une solution aqueuse à 1 % ; et, (iii) un premier abrasif présentant un indice de Mohs de 3 à 5 et un second abrasif présentant un indice de Mohs de 5,5 à 7, s'élevant collectivement à 15 à 70 % en pds de ladite composition, le rapport dudit tensioactif audit adjuvant étant de 1:0,5 à 1:25. La présente invention concerne également un procédé de nettoyage antibactérien des toilettes consistant à atteindre une réduction d'au moins 2-log dans la numération viable des bactéries à Gram positif et à Gram négatif, ledit procédé comprenant : (i) la mise en contact de ladite surface avec ladite composition pendant au moins dix minutes ; (ii) le lavage de ladite surface avec de l'eau.
PCT/EP2017/060990 2016-06-13 2017-05-09 Composition de nettoyage des surfaces dures comportant un tensioactif et un adjuvant alcalin WO2017215845A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112018075122-7A BR112018075122B1 (pt) 2016-06-13 2017-05-09 Composição em pó sem alvejante para limpeza de superfícies rígidas e uso de uma composição
ZA2018/07558A ZA201807558B (en) 2016-06-13 2018-11-09 Hard surface cleaning composition containing surfactant and alkaline builder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16174240 2016-06-13
EP16174240.8 2016-06-13

Publications (1)

Publication Number Publication Date
WO2017215845A1 true WO2017215845A1 (fr) 2017-12-21

Family

ID=56120976

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/060990 WO2017215845A1 (fr) 2016-06-13 2017-05-09 Composition de nettoyage des surfaces dures comportant un tensioactif et un adjuvant alcalin

Country Status (3)

Country Link
BR (1) BR112018075122B1 (fr)
WO (1) WO2017215845A1 (fr)
ZA (1) ZA201807558B (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379093A1 (fr) 1989-01-19 1990-07-25 Sterling Drug Inc. Produit de nettoyage pour surfaces dures
US6387868B1 (en) 1997-12-18 2002-05-14 Uno Shoyu Co., Ltd. Clear liquid detergent containing alkylbenzenesulfonate anionic surfactant and liquid sodium silicate and surfactants in water
WO2009085049A1 (fr) 2007-12-28 2009-07-09 Colgate-Palmolive Company Compositions de nettoyage acides comprenant un polymère
US20090197786A1 (en) 2006-07-31 2009-08-06 Reckitt Benckiser (Uk) Limited Hard Surface Cleaning Compositions
WO2012049202A1 (fr) 2010-10-12 2012-04-19 Henkel Ag & Co. Kgaa Nettoyant pulvérulent moussant à propriétés désinfectantes
WO2014108664A1 (fr) * 2013-01-14 2014-07-17 Reckitt Benckiser (Brands) Limited Compositions de nettoyage de type crème abrasive antimicrobienne pour surfaces dures inanimées
WO2015078679A1 (fr) * 2013-11-28 2015-06-04 Unilever N.V. Composition de nettoyage de surfaces dures

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379093A1 (fr) 1989-01-19 1990-07-25 Sterling Drug Inc. Produit de nettoyage pour surfaces dures
US6387868B1 (en) 1997-12-18 2002-05-14 Uno Shoyu Co., Ltd. Clear liquid detergent containing alkylbenzenesulfonate anionic surfactant and liquid sodium silicate and surfactants in water
US20090197786A1 (en) 2006-07-31 2009-08-06 Reckitt Benckiser (Uk) Limited Hard Surface Cleaning Compositions
WO2009085049A1 (fr) 2007-12-28 2009-07-09 Colgate-Palmolive Company Compositions de nettoyage acides comprenant un polymère
WO2012049202A1 (fr) 2010-10-12 2012-04-19 Henkel Ag & Co. Kgaa Nettoyant pulvérulent moussant à propriétés désinfectantes
WO2014108664A1 (fr) * 2013-01-14 2014-07-17 Reckitt Benckiser (Brands) Limited Compositions de nettoyage de type crème abrasive antimicrobienne pour surfaces dures inanimées
WO2015078679A1 (fr) * 2013-11-28 2015-06-04 Unilever N.V. Composition de nettoyage de surfaces dures

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
"McCutcheon's Emulsifiers and Detergents", MANUFACTURING CONFECTIONERS COMPANY
"Modern Chemical Specialties", 1950, MAC NAIR-DORLAND COMPANY
H. STACHE: "Tenside-Taschenbuch", 1981, CARL HAUSER VERLAG
SCHWARTZ; PERRY: "Surface Active Agents", vol. 1, 1949, INTERSCIENCE
SCHWARTZ; PERRY; BERCH: "SURFACE ACTIVE AGENTS", vol. 2, 1958, INTERSCIENCE

Also Published As

Publication number Publication date
ZA201807558B (en) 2020-02-26
BR112018075122B1 (pt) 2022-11-08
BR112018075122A2 (pt) 2019-03-26

Similar Documents

Publication Publication Date Title
CA2452962C (fr) Compositions epaissies de nettoyage pour cuvette de toilettes
US7199094B2 (en) Hard surface cleaning compositions comprising a mixture of citric and formic acid
US7186676B2 (en) Hard surface cleaning compositions comprising alginate materials and xanthan gum
AU2002361849A1 (en) Thickened toilet bowl cleaner
JP2014501801A5 (fr)
IE51605B1 (en) Liquid detergent composition
CN104877765A (zh) 一种洗衣机槽清洁剂
AU2006215837B2 (en) Aqueous liquid bleach compositions
US20060052264A1 (en) Hard surface cleaning and disinfecting compositions
JP6093280B2 (ja) 硬質表面用液体洗浄剤組成物
AU2004213627B2 (en) Hard surface cleaning compositions
GB2429015A (en) An aqueous hard-surface cleaning composition
WO2017215845A1 (fr) Composition de nettoyage des surfaces dures comportant un tensioactif et un adjuvant alcalin
WO2017215886A1 (fr) Composition pulvérulente sans agent de blanchiment destinée au nettoyage des surfaces dures
JP6093279B2 (ja) 硬質表面用液体洗浄剤組成物
EP3387098B1 (fr) Composition aqueuse pour nettoyage de surfaces dures
US6035869A (en) Dish-washing method
GB2157705A (en) Cleaning composition for waste-disposer
CA2526298A1 (fr) Composition blanchissante au chlore attenuant les odeurs de javellisant
WO2023180053A1 (fr) Composition solide de nettoyage de surfaces dures
EP3244733A1 (fr) Composition antimicrobienne pour le nettoyage de surfaces dures
Ahmed Industrial and institutional cleaners
Wisniewski Specialty Cleaners

Legal Events

Date Code Title Description
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17723056

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112018075122

Country of ref document: BR

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 112018075122

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20181204

122 Ep: pct application non-entry in european phase

Ref document number: 17723056

Country of ref document: EP

Kind code of ref document: A1