EP3387098B1 - Wässrige zusammensetzung zur reinigung harter oberflächen - Google Patents

Wässrige zusammensetzung zur reinigung harter oberflächen Download PDF

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Publication number
EP3387098B1
EP3387098B1 EP16801526.1A EP16801526A EP3387098B1 EP 3387098 B1 EP3387098 B1 EP 3387098B1 EP 16801526 A EP16801526 A EP 16801526A EP 3387098 B1 EP3387098 B1 EP 3387098B1
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Prior art keywords
surfactant
composition
weight
sodium
compositions
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EP16801526.1A
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English (en)
French (fr)
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EP3387098A1 (de
Inventor
Manoj Vilas Dagaonkar
Somnath Ghosh
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Unilever PLC
Unilever NV
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Unilever PLC
Unilever NV
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Priority to PL16801526T priority Critical patent/PL3387098T3/pl
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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
    • C11D3/48—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
    • 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
    • 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
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • C11D3/046—Salts
    • 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
    • C11D3/046—Salts
    • C11D3/048—Nitrates or nitrites
    • 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
    • C11D3/08—Silicates
    • 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
    • C11D1/37—Mixtures of compounds all of which are anionic
    • 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
    • C11D1/83—Mixtures of non-ionic with anionic compounds

Definitions

  • the invention relates to a composition for cleaning hard surfaces, more particularly for rendering toilet bowls more hygienic.
  • compositions for cleaning inanimate hard surfaces.
  • Such surfaces include household surfaces such as those found inside bathrooms, toilet bowls and kitchens and are made of diverse materials such as enamel, ceramic, and porcelain.
  • the types of stains usually encountered in lavatories, toilet bowls and bathrooms include lime scale deposits, soap scum and organic soil.
  • compositions available for cleaning such hard surfaces include acidic cleaners, phenyl, bleach-based cleaners and powder compositions.
  • Some high-end products for cleaning toilet bowls include gels and pastes.
  • Acidic cleaning compositions are particularly effective against lime scale.
  • Bleach-based compositions are effective against stains. However, such compositions are harsh. Bleach has the potential to damage some of the surfaces.
  • WO09085049 A1 discloses a cleaning composition containing an organic acid, an ethoxylated alcohol and a hydrophilic polymer that adsorbs to 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.
  • WO2012/049202A1 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 said to dissolve easily into water and not become cloudy over long period.
  • the presence of polyoxyethylene alkyl or aryl ether nonionic surfactant and alkylethersulfate salt anionic surfactant 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.
  • WO95/18209 discloses thickened alkali metal hypochlorite compositions comprising linear alkyl benzene sulphonate.
  • proxy products include low-priced detergent powders.
  • some do bleaching powders, acids, phenyls or detergent wash-liquor which is left over of fabric cleaning process.
  • While such products do provide some degree of cleaning, they are not formulated keeping secondary uses in mind. Therefore, users of such products get sub-optimal cleaning in spite of significant efforts and inconvenience. Further, the users face the risk of exposing themselves to, or coming in contact with, organic soil such as human waste, and the wide variety of pathogenic microbes, mainly bacteria, that thrive under unhygienic conditions.
  • compositions which will provide certain minimum degree of hygienic and germ-free environment within a reasonable amount of time, 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 as little non-renewable resources such as synthetic surfactants, as possible.
  • Such compositions are also required to be stable, or said in other words, there should not be phase separation, which is very likely to affect adversely the technical effect of the compositions, which is a marked reduction in bacterial count.
  • an aqueous bleach-free cleaning composition comprising:
  • 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.
  • compositions in accordance with this invention are useful for toilet cleaning, the compositions may be used to clean any other inanimate hard surface and render it hygienic and germ-free.
  • High-priced products may provide up to 5-log reduction in the viable bacterial count. However, it is an arduous task to provide such a high level of hygiene, unless the compositions contain significant amount of surfactants, bleach, antibacterial agents and other active ingredients.
  • compositions provide, 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. Further preferably said compositions provide at least 5-log reduction.
  • Detergent powders may provide even 1 to 2 log reduction according to European Suspension Test BS EN 1276 .
  • the 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.
  • aqueous hard surface cleansing products Consumers prefer aqueous hard surface cleansing products because they are easy to handle and apply. However, some of the high-end aqueous detergent products contain significant amount of surfactants and it would make little sense to use such expensive products to clean toilets. Aqueous toilet and floor cleaners need to have low solids content. Usually the acidic or bleach-based toilet cleaning products that are available in markets are stable. However, formulating a non-bleach, non-acidic aqueous hard surface cleaning composition is a technical problem, especially if the products needs to be sustainable whilst providing at least 2-log reduction in viable bacterial count.
  • compositions in accordance with the invention are aqueous and are bleach-free.
  • aqueous means that the compositions comprise at least 80 % by weight water. It is preferred that the compositions comprise 85 to 92 % by weight water.
  • bleach-free is meant that the compositions comprise (cumulatively) less than 1 % by weight of bleaching ingredients, preferably less than 0.8, more preferably less than 0.6 and even more preferably less than 0.4 % by weight.
  • bleaching ingredients include hypochlorites, sulphites, bisulphites, metabisulphites, iso-cyanurates, persulphates, percarbonates, peroxides, perborates and other bleach ingredients.
  • compositions in accordance with this invention comprise 1.5 to 5 % by weight of a surfactant system.
  • This system contains a first surfactant, which is linear alkyl benzene sulphonate (abbreviated as LAS); and a second surfactant, which is an alkoxylated sulphate or a mixture of alkoxylated sulphate and up to 0.4 % by weight of non-ionic surfactant, the non-ionic surfactant having a HLB of 10 to 15.
  • the second surfactant keeps the first surfactant in micellar phase.
  • the amount of surfactants which is significantly less than conventional products, contributes to sustainability and makes the compositions in accordance with this invention less dependent on non-renewable resources.
  • the surfactant system :
  • the first surfactant i.e. linear alkyl benzene sulphonate
  • 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 alkyl benzene sulphonate surfactants include sodium salt of linear alkyl benzene sulphonates with an alkyl chain length of from 8 to 15, more preferably 12 to 14.
  • the ratio between the amount of the first surfactant to the amount of the second surfactant is from 1:1 to 1:6.5 parts by weight, more preferably 1:2 to 1:5 parts by weight.
  • the resulting compositions are found to be unstable, i.e. ones which are prone to phase separation. Such unstable compositions are not suited for the intended application as they are unlikely to provide at least 2-log reduction in viable bacterial count.
  • the second surfactant is necessary to maintain the first surfactant in the micellar phase.
  • CMC critical micelle concentration
  • repulsive forces between negative charges on the sulphonate group of the first surfactant lead to a higher critical micelle concentration (CMC) than, for instance, with a nonionic surfactant.
  • CMC is the surfactant concentration at which micellar formation begins. Stated otherwise, the negative charge of the first surfactant inhibits micellar formation and shifts the equilibrium towards the monomer.
  • a relatively high monomer concentration of linear alkyl benzene sulfonate in solution results in a higher packing factor, causing shift in the equilibrium from micellar to lamellar phase and thereby causing precipitation.
  • the second surfactant is believed to prevent or at least reduce this precipitation to a significant extent.
  • a mixed micelle forms between the first and second surfactants at lower CMC.
  • the surfactant system therefore helps shield negative charges of the first and second surfactants from each other in the micelle. Micellar formation is, accordingly, more energetically favorable and lowers free monomer concentration.
  • the second surfactant is an alkoxylated sulphate with 1 to 7 moles of alkoxylation.
  • the respective surfactants may be chosen from surfactants described in " 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 .
  • Alkoxylated sulphates are anionic surfactants generally represented by the general formula RO(C 2 H 4 0) x SO 3 - 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). It is the sodium salt of lauryl ether sulphonic acid in which the predominantly C 12 lauryl group ethoxylated with an average of 1 to 5 moles of ethylene oxide units per mole.
  • the nonionic surfactant could be a primary or secondary alcohol ethoxylate, especially C 8 to 20 aliphatic alcohol ethoxylated with an average of from 1 to 23 moles of ethylene oxide per mole of alcohol, prefereably 1 to 20 moles of ethylene oxide per mole of alcohol. More preferably it is C 10 - 15 primary and secondary aliphatic alcohols ethoxylated with an average of from 1 to 10 moles of ethylene oxide per mole of alcohol. Mixtures of nonionic surfactant may also be used.
  • compositions in accordance with the invention comprises, individually, not more than 0.5 % by weight cationic surfactant or zwitterionic surfactant, more preferably not more than 0.3 % by weight and even more prefereably not more than 0.1 % by weight. They are avoided to prevent unfavourable interactions with other ingredients.
  • compositions in accordance with this invention comprise a non-phosphate alkaline builder in an amount sufficient to provide pH of 11 to 14 to the composition, preferably a pH of 12 to 14.
  • the amount of the builder will depend on its alkalinity and accordingly it will vary from builder to builder. This amount is within the knowledge of skilled persons. It is preferred that the builder is at least one of sodium hydroxide, sodium silicate, sodium disilicate or sodium aluminate.
  • compositions in accordance with the invention comprise 2 to 5 % by weight electrolyte which is salt of a strong acid and a strong base.
  • electrolyte which is salt of a strong acid and a strong base.
  • the concept of strong and weak acids and bases is well known and described in basic text books on chemistry like e.g. Chapter 12.4 of Beginning Chemistry v. 1.0 (2012 ).
  • the salt is at least one of sodium chloride, sodium nitrate, sodium sulphate, potassium chloride, potassium nitrate or potassium sulphate. It is preferred that the ratio between the total amount of surfactants in said surfactant system to the total amount of salt is 1:0.3 to 1:2.5 parts by weight.
  • Viscosity of the composition is 250 to 2500 cP at 20 s -1 (0.25 Pa.s to 2.5 Pa.s). The viscosity is measured at 20 °C.
  • a Haake® AR1000 Rheometer with cone and plate assembly is used, but any equivalent machine may also be used.
  • the use of the aqueous composition of the first aspect as an antibacterial toilet cleaner is disclosed. 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 15 minutes.
  • the said composition can be applied to the surface and spread effectively with the help of a scrubber, left for few minutes, at least minutes, and then rinsed with water.
  • the aqueous cleaning compositions of the invention may be made available to users in the form of a pre-impregnated implements like sponges.
  • the aqueous cleansing compositions of the invention may optionally comprise other ingredients, such as fragrance, colorant, foam boosting agents, preservatives (e.g. bactericides), pH buffering agents, anti-oxidants, anti-corrosion agents and anti-static agents.
  • the compositions may further comprise pearlisers and/or opacifiers.
  • the composition according to the invention may be packaged in any suitable container.
  • the compositions are packaged in a plastic bottle with a detachable closure /pouring spout.
  • the bottle may be rigid or deformable.
  • a deformable bottle allows the bottle to be squeezed to aid dispensing.
  • clear bottles may be formed from PET, Polyethylene or clarified polypropylene.
  • the container is clear enough that the liquid, with any visual cues if any, therein, is visible from the outside.
  • the bottle may be provided with one or more labels, or with a shrink wrap sleeve which is desirably at least partially transparent, for example 50 percent of the area of the sleeve is transparent.
  • the adhesive used for any transparent label should preferably not adversely affect the transparency.
  • Example 1 Compositions outside the invention
  • compositions outside the scope of the invention were prepared and viscosity of each composition was measured. Details of the compositions are shown in table 1.
  • Table 1 Example No# Ingredient/wt% LAS:SLES ratio Stability/ Viscosity (cP) Na-LAS SLES 3 EO Total amount of surfactant NaOH NaCl 1 0 3.0 3.0 0.9 4.0 NA 20 2 3.0 ---- 3.0 0.9 4.0 NA Unstable 3 2.8 ---- 2.8 0.9 4.5 NA Unstable 4 2.8 ---- 2.8 0.9 2.0 NA Unstable 5 ---- 2.8 2.8 0.9 4.5 NA 102 6 ---- 2.8 2.8 0.9 4.0 NA 42 7 ---- 2.8 2.8 0.9 3.0 NA 7 9 ---- 2.8 2.8 0.9 2.5 NA 3 10 ---- 2.8 2.8 0.9 2.0 NA 2 11 1.8 0.9 2.7 0.9 4.5 1:0.5 Unstable 12 1.8 0.9 2.7 0.9 2.0 1:0.5 Unstable 13
  • Table 1 primarily indicates the effect of surfactants. When one of the surfactants is missing, the composition is either unstable or its viscosity falls significantly short of the required minimum (Example No. # 1 to 10). On the other hand, compositions 11 to 15 point towards the importance of ratio between the first and the second surfactant. Phase separation was observed in the case of all 'unstable' compositions'.
  • Example 2 Compositions inside the invention
  • compositions inside the scope of the invention were prepared and viscosity of each composition was measured. Details of the compositions are shown in table 2.
  • Table 2 Ingredient/wt% LAS:SLES ratio Stability/ Viscosity (cP)
  • Example No # Na-LAS SLES 3 EO Total amount of surfactant NaOH NaCl 16 0.7 4.3 5.0 0.9 4.5 1:6.1 2050 17 0.8 4.2 5.0 0.9 4.5 1:5.25 2020 18 2.5 2.5 5.0 0.9 2.0 1:1 485 19 0.96 3.1 4.0 0.9 4.0 1:3.2 1015 20 0.96 2.1 3.0 0.9 4.0 1:2.2 420 21 0.4 2.1 2.5 0.9 4.0 1:5.3 290 22 0.7 2.1 2.8 0.9 4.0 1:3 500
  • Table 2 shows that the compositions in accordance with the invention have the right viscosity. The data clearly shows the effect of the ratio. All the compositions of table 2 were stable, i.e. no phase separation.
  • the data in table 3 indicates that a salt of weak acid and strong base (sodium acetate) does not provide desired viscosity.
  • Example 4 Reduction in viable count of bacteria by BS EN 1276 protocol
  • the concerned test bacteria were grown overnight at 37 °C on a TSA (Tryptic Soya Agar) plate. The grown culture colonies were re-suspended 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 bioMérieux Densomat®). Thereafter 240 ⁇ l of the 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 ⁇ l of the mixture being added to the test solution.
  • the data in table 4 indicates that the compositions in accordance with the invention have the right viscosity and provide as much as 5-log reduction (i.e., 99.999 % reduction) in viable count of each bacteria against which the compositions were tested.
  • Example 5 Composition inside the scope of invention with non-ionic surfactants
  • composition inside the scope of invention with non-ionic surfactants were prepared and viscosity of each composition was measured. Details of the composition are shown in table 5.
  • Table 5 Ingredient/wt% Stability/ Viscosity (cP)
  • Example No# Na-LAS SLES 3 EO NI 5EO NI 7EO NI 23EO
  • Table 5 shows that the compositions in accordance with the invention have the right viscosity. All the compositions of table 5 were stable, i.e. no phase separation was observed.
  • Example 6 Compositions outside the scope of the invention with non-ionic surfactants
  • compositions outside the scope of the invention with non-ionic surfactants were prepared and viscosity of each composition was measured. Details of the compositions are shown in table 6.
  • Table 6 Ingredient/wt% Stability/ Viscosity (cP)
  • Example No # Na-LAS SLES 3 EO NI 5EO NI 7EO NI 23EO
  • Total amount of surfactant NaOH NaCl 33 0.7 2.8 0.5 - - 4.0 0.9 4.5 110 34 0.7 2.8 - - 3.5 0.9 4.5
  • Unstable 35 0.7 2.8 - 0.5 - 4.0 0.9 4.5 45 36 0.7 2.8 - 3.5 0.9 4.5
  • Unstable 37 0.7 2.8 - - 0.5 4.0 0.9 ⁇ 10 38 0.7 - - 2.8 3.5 0.9 4.5
  • Unstable 37 0.7 2.8 - - 0.5 4.0 0.9 4.5 ⁇ 10 38 0.7 - - 2.8 3.5 0.9 4.5
  • Unstable 37 0.7 2.8
  • the data included in table 6 primarily indicates the effect of addition of non-ionic surfactant at a level that is outside the scope of invention.
  • the percentage of non-ionic is increased beyond 0.4 wt%, the composition is either unstable or its viscosity falls significantly short of the required minimum.

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

Claims (6)

  1. Wässrige, bleichmittelfreie Reinigungszusammensetzung, umfassend:
    (i) 1,5 bis 5 Gewichts-% Tensidsystem, enthaltend
    a. ein erstes Tensid, das ein lineares Alkylbenzolsulfonat ist; und
    b. ein zweites Tensid, das ein alkoxyliertes Sulfat oder eine Mischung von alkoxyliertem Sulfat und bis zu 0,4 Gewichts-% nichtionischem Tensid ist, wobei das nichtionische Tensid einen HLB von 10 bis 15 aufweist;
    (ii) einen alkalischen Nichtphosphat-Builder in einer Menge, die ausreicht, um der Zusammensetzung einen pH-Wert von 11 bis 14 zu verleihen; und
    (iii) 2 bis 5 Gewichts-% Elektrolyt, der ein Salz einer starken Säure und einer starken Base ist, und wobei das Salz mindestens eines von Natriumchlorid, Natriumnitrat, Natriumsulfat, Kaliumchlorid, Kaliumnitrat oder Kaliumsulfat ist;
    wobei das Verhältnis der Menge des ersten Tensids zu der des zweiten Tensids 1:1 bis 1:6,5 Gewichtsteile beträgt, wobei das zweite Tensid das erste Tensid in Mizellarphase hält und wobei die Viskosität der Zusammensetzung 250 bis 2500 cP bei 20 s-1 (0,25 Pa.s bis 2,5 Pa.s) bei 20 °C beträgt,
    wobei bleichmittelfrei definiert ist als die Zusammensetzung, die kumulativ weniger als 1 Gewichts-% Bleichmittelinhaltsstoffe umfasst.
  2. Wässrige Zusammensetzung wie in Anspruch 1 beansprucht, wobei der Builder mindestens einer von Natriumhydroxid, Natriumsilicat, Natriumdisilicat oder Natriumaluminat ist.
  3. Wässrige Zusammensetzung wie in Anspruch 1 oder 2 beansprucht, wobei die Zusammensetzung nicht mehr als 0,5 Gewichts-% von irgendeinem von einem kationischen Tensid oder einem zwitterionischen Tensid umfasst.
  4. Wässrige Zusammensetzung wie in irgendeinem der Ansprüche 1 bis 3 beansprucht, wobei die Zusammensetzung nicht mehr als 0,3, bevorzugt nicht mehr als 0,1 Gewichts-% von irgendeinem von einem kationischen Tensid oder einem zwitterionischen Tensid umfasst.
  5. Wässrige Zusammensetzung wie in irgendeinem der Ansprüche 1 bis 4 beansprucht, wobei bei Kontakt mit einer unbelebten harten Oberfläche, die darauf mindestens ein grampositives Bakterium, ausgewählt aus S. aureus und E. hirae, und mindestens ein gramnegatives Bakterium, ausgewählt aus P. aeruginosa und E. coli, umfasst; die Zusammensetzung gemäß dem BS EN 1276 Protokoll eine Verringerung der lebensfähigen Keime von mindestens einem der grampositiven Bakterien und mindestens einem der gramnegativen Bakterien um mindestens 2 log bereitstellt.
  6. Verwendung einer Zusammensetzung wie in irgendeinem der Ansprüche 1 bis 4 beansprucht als antibakterieller Toilettenreiniger.
EP16801526.1A 2015-12-11 2016-11-28 Wässrige zusammensetzung zur reinigung harter oberflächen Active EP3387098B1 (de)

Priority Applications (1)

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PL16801526T PL3387098T3 (pl) 2015-12-11 2016-11-28 Wodna kompozycja do czyszczenia twardych powierzchni

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EP15199497 2015-12-11
PCT/EP2016/078993 WO2017097621A1 (en) 2015-12-11 2016-11-28 Aqueous composition for cleaning hard surfaces

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EP3387098A1 EP3387098A1 (de) 2018-10-17
EP3387098B1 true EP3387098B1 (de) 2020-09-16

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EP (1) EP3387098B1 (de)
BR (1) BR112018011710B1 (de)
EA (1) EA035067B1 (de)
PL (1) PL3387098T3 (de)
WO (1) WO2017097621A1 (de)
ZA (1) ZA201803602B (de)

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GB8513293D0 (en) * 1985-05-28 1985-07-03 Procter & Gamble Ntc Ltd Cleaning compositions
AU4702289A (en) 1989-01-19 1990-07-26 Sterling Drug Inc. Hard surface cleaning composition
WO1995018209A1 (en) * 1993-12-29 1995-07-06 Reckitt & Colman Inc. Thickened alkaly metal hypochlorite compositions
US6255267B1 (en) * 1996-03-04 2001-07-03 Hpd Laboratories, Inc. Manual toilet bowl cleaner
KR100352934B1 (ko) * 1997-12-18 2002-09-16 우노 쇼오유 가부시끼 가이샤 알킬벤젠 술폰산염 음이온 계면활성제와 규산나트륨을 함유하는 투명액체 세정제
AU6343701A (en) * 2000-06-05 2001-12-17 S C Johnson Biocidal cleaner composition
CN101356260B (zh) 2006-07-31 2011-05-18 雷克特本克斯尔(英国)有限公司 改进的硬质表面清洁组合物
EP2039748A1 (de) * 2007-09-17 2009-03-25 The Procter and Gamble Company Verfahren zur Behandlung von geneigten harten Oberflächen
EP3184620A1 (de) 2007-12-28 2017-06-28 Colgate-Palmolive Company Saure reinigungszusammensetzungen mit einem polymer
DE102010042346A1 (de) 2010-10-12 2012-04-12 Henkel Ag & Co. Kgaa Schäumender pulverförmiger Reiniger mit desinfizierenden Eigenschaften

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Publication number Publication date
EA201891392A1 (ru) 2018-11-30
EP3387098A1 (de) 2018-10-17
WO2017097621A1 (en) 2017-06-15
ZA201803602B (en) 2019-09-25
BR112018011710A2 (pt) 2018-11-27
EA035067B1 (ru) 2020-04-23
BR112018011710B1 (pt) 2022-06-07
PL3387098T3 (pl) 2021-04-06

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