EA033815B1 - Hard surface treatment composition - Google Patents

Abstract

The present invention relates to the field of hard surface treatment compositions; and in particular the invention relates to cleaning compositions that can provide long lasting hygiene to hard surfaces. It is therefore an object of the invention to provide a stable acidic hard surface treatment composition with hydrophobic properties that provides prolonged hygiene benefits to hard surfaces. It has been found that specific water soluble non-ionic polymers having a specific molecular weight can stabilise silane in an acidic composition.

Description

FIELD OF THE INVENTION

The invention relates to the field of compositions for treating hard surfaces; and, in particular, relates to cleaning compositions that can provide long-term hygiene of hard surfaces.

BACKGROUND OF THE INVENTION

Hard surface cleaners are a category of cleaning products that includes mainly aqueous solutions of specialty chemicals that vary with the type of dirt and the type of surface to be cleaned. Various types of cleaners for hard surfaces include universal cleaners, windshield wipers, metal cleaners, facade cleaners, toilet cleaners, abrasive cleaners, and the like.

Cleaning the toilet often aims to remove calcium carbonate deposits that are affected by acids. Powder cleaners contain acids that come in the form of solid salts, such as sodium hydrosulfate. Liquid toilet cleaners contain other acids, usually diluted with hydrochloric, phosphoric or formic acids. These acids convert calcium carbonate to salts that are soluble in water or that are easily washed off. However, the benefits of cleaning and disinfecting achieved with such acidic cleaners are quite limited. As a consequence, there is still a need for cleaning compositions that can provide long-term hygiene benefits to hard surfaces such as toilets.

Silanes are well known in the art as compounds that impart hydrophobic properties and provide a long-term antimicrobial effect to hard surfaces since they prevent the deposition of dirt and microorganisms. However, the addition of silanes to the acid-based composition impairs the stability of the composition.

Document WO 97/36980 relates to an acidic cleansing composition comprising a surface modifying agent selected from the group consisting of hydrolyzed trialkoxysilane and hydrolyzable quaternary silane.

GB 2340501 A relates to acidic compositions for cleaning and disinfecting hard surfaces, which create a protective layer that provides water-repellent and dirt-repellent properties.

Document US 2010/0093666 A1 relates to antimicrobial organosilane compositions, compounds, products and methods of their use.

No. 5,411,585 discloses a method for increasing stability and expanding the pH stability range of an aqueous solution of a water-soluble organosilane with a concentration of from about 0.001 to 5 wt.% Containing hydrolyzable groups associated with silicon, in particular water-soluble functional organosilanes of quaternary ammonium, by adding a water-soluble organic non-silicon compound of quaternary ammonium at least one of non-ionic, amphoteric, sarcosine, anionic and some types of cationic surfactants other substances. The resulting stable aqueous solutions can be used to apply water-soluble organosilanes to various substrates to, among other things, serve as binders, waterproofing agents and for antimicrobial and algicidal treatment of substrates, depending on the nature of the organosilanes. This document discloses, as a thickener, the water-soluble non-ionic polymer Natrosol ™ hydroxyethyl cellulose. However, hydroxyethyl cellulose is a non-ionic polymer not suitable for the present invention.

Therefore, the aim of the invention is to obtain a stable composition with hydrophobic properties for the acid treatment of hard surfaces.

Another objective of the invention is to provide a composition for cleaning hard surfaces, which gives long-term hygienic benefits to these hard surfaces.

It has been unexpectedly discovered that specific water-soluble non-ionic polymers having a specific molecular weight can stabilize silane in an acidic composition.

Disclosure of Invention

Accordingly, in a first aspect, the invention relates to a composition for treating hard surfaces, including:

a) from 0.1 to 10 wt.% a mixture of acid-stable surfactants selected from cationic and non-ionic surfactants;

b) from 0.05 to 0.4 wt.% cationic silane having the formula

in which R ₁ represents a C ₆ -C ₁₈ alkyl or aryl group; R ₂ represents a C ₁ -C ₅ alkyl group;

R represents a C ₁ -C ₄ alkyl group;

R ₃ represents a C ₁ -C ₄ alkyl group;

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Y is an integer from 0 to 2;

X is an integer from 1 to 3;

Z represents a halide ion, preferably chloride (Cl ^- );

O represents oxygen;

Si is silicon;

C is carbon;

H represents hydrogen;

N represents nitrogen; and n is 3;

c) from 0.05 to 4 wt.% a water-soluble non-ionic polymer having a molecular weight of from 10 to 150 kDa selected from formula B

- (- ca-sn-) pON in which n = 3-2300; and

d) water;

where the pH of the composition is 2 or less, and where the silane and polymer are present in a ratio of from 1:10 to 3.5: 1.

In a second aspect, the invention relates to a method for providing long-term surface hygiene, comprising the following successive steps: applying the composition of the invention to a surface; surface drying; and rinsing the surface.

In a third aspect, the invention relates to the use of a composition of the invention for providing long-term surface hygiene.

In the context of the present invention, reference to hard surfaces generally means toilets, floors, as well as floors and tiles in a bathroom.

These and other aspects, features and advantages of the invention will become apparent to those of ordinary skill in the art from the following detailed description and the appended claims. For the avoidance of doubt, any feature of one aspect of the present invention may be used in any other aspect of the invention. The word containing is intended to mean including, but not necessarily consisting of or composed of. In other words, the listed stages or parameters are not necessarily exhaustive. It should be noted that the examples described in the description below are intended to clarify the essence of the invention and are not intended to limit the invention to these examples as such. Similarly, all percentages are percent by weight / mass unless otherwise indicated. With the exception of working and comparative examples, or when explicitly stated otherwise, all numbers in this description indicating the amount of material or reaction conditions, physical properties of the materials and / or applications should be understood as preceded by the word approximately. Numerical ranges expressed in the format from x to y should be understood as including x and y. If several preferred ranges are given in a format from x to y or x-y for a particular feature, it should be understood that all ranges combining the various indicated boundary points are also provided.

The implementation of the invention

In a first aspect, the invention relates to a composition for treating hard surfaces, comprising an acid-stable surfactant, a cationic silane, a water-soluble non-ionic polymer, and water.

Acid-stable surfactant.

The solid surface treatment composition of the present invention includes an acid stable surfactant.

The acid stable surfactant of the present invention is selected from a mixture of cationic and nonionic surfactants.

Examples of cationic surfactants include C ₈ -C ₁₈ alkyltrimethylammonium salts, C ₈ -C ₁₈ -alkyldimethylammonium salts and alpha trimethylamine fatty acid betaines; a preferred surfactant is C ₈ -C ₁₈ alkyltrimethylammonium salts.

Examples of nonionic surfactants include alkylbenzenesulfonates, linear alkildifenilefirdisulfonaty, alpha-olefin sulfonates, ethers, ethoxylated alkyl alcohol ether sulfates of ethoxylated alkyl alcohols, ethoxylated alkyl phenols, ethers, sulfates of ethoxylated alkyl phenols, ethoxylated perftoralkilalkanoly, aminoetoksilaty, salts of ethoxylated from C ₈ up to C ₁₈ amines; preferably, the surfactant is a salt of ethoxylated AA ^ amines.

An acid-stable surfactant is present in the composition in a concentration of from 0.1 to 10%, preferably not more than 8%, more preferably not more than 6%, even more preferably not more than 4% or even not more than 2%, but, as a rule, not less than 0.5%, preferably not less than 1

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The cationic and nonionic surfactant is present in the composition in a weight ratio of from 1: 1 to 1:10, preferably from 1: 2 to 1: 8.

Cationic silane.

The solid surface treatment composition of the present invention includes a cationic silane having the formula

in which R ₁ represents a C ₆ -C ₁₈ alkyl or aryl group, preferably a C ₁₀ -C ₁₈ alkyl or aryl group, more preferably a C ₁₄ -C ₁₈ alkyl or aryl group;

R ₂ represents a CrCj alkyl group, preferably a C ₁ -C4 alkyl group, more preferably a ^ - ^ - alkyl group;

R represents a ^ - ^ - alkyl group, preferably a ^ - ^ - alkyl group;

R ₃ represents a ^ - ^ - alkyl group; preferably a ^ - ^ - alkyl group;

Y is an integer from 0 to 2, preferably 0;

X is an integer from 1 to 3, preferably from 1 to 2;

Z represents a halide ion, preferably chloride (Cl ^- );

O represents oxygen;

Si is silicon;

C is carbon;

H represents hydrogen;

N is nitrogen and n is 3.

Non-limiting examples of the silane of the present invention include dimethyl octadecyl [3 (triethoxysilyl) propyl] ammonium chloride, dimethyl octadecyl [3 (trimethoxysilyl) propyl] ammonium chloride, dimethyl tetradecyl [3 (trimethoxysilyl) propyl] ammonium chloride and methyl (dimethyl) di-methyl] demethyl chloride.

Preferred silanes are dimethyl octadecyl [3- (triethoxysilyl) propyl] ammonium chloride and dimethyl octadecyl [3- (trimethoxysilyl) propyl] ammonium chloride.

The cationic silane is present in the composition in a concentration of from 0.05 to 0.4%, preferably at least 0.1%, more preferably at least 0.15%, but usually not more than 0.3%, preferably not more than 0.2 wt.% of the composition.

Nonionic polymer.

The solid surface treatment composition of the present invention includes a non-ionic polymer, which is a water-soluble polymer.

The nonionic polymer is selected from formula B

- (- CH ₂ -CH-) nI in which n = 3-2300.

The non-ionic polymer of the present invention has a molecular weight of from 10 to 150 kDa, preferably from 10 to 100 kDa, more preferably from 50 to 100 kDa.

It is particularly preferred that, for the best antimicrobial effect, the molecular weight of the polymer is from 50 to 150 kDa, preferably from 60 to 150 kDa, more preferably from 70 to 130 kDa, even more preferably from 80 to 120 kDa or even more preferably from 80 to 100 kDa.

The non-ionic polymer is present in the composition in a concentration of from 0.05 to 4%, preferably at least 0.1%, more preferably at least 0.5%, even more preferably at least 1%, but usually not more than 3%, preferably not more than 2 wt.% Of the composition.

Cationic silane and a non-ionic polymer are present in the composition in a ratio of 1:10 to 3.5: 1, preferably from 1: 5 to 1: 1, based on the weight of the silane and non-ionic polymer.

pH

The pH of the composition for treating hard surfaces is 2 or less, preferably from 1 to 2. The pH of the composition is achieved using a strong acid.

The strength of an acid generally refers to its ability or tendency to lose a proton (H ⁺ ). A strong acid is an acid that completely ionizes (dissociates) in solution. For example, in water, one mole of the strong acid HA dissolves to produce one mole of H ⁺ (in the form of a hydroxonium ion H ₃ O ⁺ ) and one mole of a conjugated base, A ^- . Basically, there is practically no non-ionized acid HA. Therefore, a strong acid can be defined as an acid having pKa <1.

Examples of strong acids include hydrochloric acid, hydroiodic acid, hydrobromic acid, perchloric acid, nitric acid, sulfuric acid, and sulfamic acid.

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Preferred acids for use in the present invention are hydrochloric acid and sulfamic acid.

Water.

The composition for processing hard surfaces of the present invention includes from 65 to 90 wt.% Water, preferably at least 70%, more preferably at least 75%, but usually not more than 85%, preferably not more than 80 wt.% composition.

Viscosity.

The composition is preferably a somewhat viscous composition. Consumers generally do not associate compositions with a consistency similar to water with highly active (i.e. concentrated) detergent compositions. However, the viscosity should not be so high that the liquid ceases to be fluid.

Viscosity describes the internal resistance of a fluid to fluidity, and it can be considered as a measure of fluid friction. Simply put, the lower the viscosity of the liquid, the easier it moves (flows).

The viscosity of the composition according to the invention is preferably from 100 to 2000 cP (1 cP = 10 ^-2 P = 10 ^-3 Pa-s = 1 mPa-s), more preferably from 500 and 1500, when measured using a Haake Viscometer, VT550 ( with a mug and a sinker), MV 2 bob at a shear rate of 21 s ^-1 and at a temperature of 20 ° C.

Optional ingredients.

Conventional cleansers and aesthetic additives such as perfume molecules include encapsulates, fluorescent substances and optical brighteners, antimicrobial active ingredients such as essential oils and cationic amine surfactants, insecticidal active ingredients such as DEET and picaridine, fluoropolymers / fluorine-containing surfactants, viscosity modifiers such as gum resins, polysaccharides, fatty alcohols, polyols (such as polyvinyl alcohol, glycerin), ingredients, cat They provide a slow release of perfumes, indoor refreshments and release agents, thickeners such as gums (xanthan, guar, kelsan), polymers (polysaccharide derivatives), stabilizers such as polyols (polyvinyl alcohol, polyethylene glycols or copolymers), fluorosilanes, surfactants, fluorosiloxanes or fluoropolymers against oil burning, for grease resistance and easy oil removal, chelating agents such as hydroxamate, metal chelators like EDT A, NTA, DTPA, citrate and organic crystalline modifiers, surface active active ingredients such as silicone emulsion, silicone resins, surface hardeners and silicone elastomers.

A way to ensure long-term hygiene.

In a second aspect, the invention relates to a method for providing long-term surface hygiene, comprising the following successive steps: applying the composition of the invention to a surface, drying the surface; and rinsing the surface.

A second aspect of the invention also relates to a method for providing an antimicrobial effect with a magnitude of more than 2 log reduction for hard surfaces, comprising the following successive steps:

a) applying the composition according to any one of claims 1 to 6 on the surface;

b) surface drying and

c) at least 10-fold rinsing of the surface by applying a certain amount of water to the same area of the solid surface on which the composition was originally applied, the amount of washing water being 1-100 times more with respect to the amount of composition initially applied to this area.

Preferably, the antimicrobial effect is greater than 3 log reductions, preferably more than 4 log reductions, and more preferably more than 5 log reductions.

Preferably, the number of rinses in step c is at least 15, preferably at least 20. The antimicrobial effect remains at the desired level, preferably for at least 15 rinses, more preferably at least 20 rinses, even more preferably at least 30 rinses, even more preferably at least 40 rinses, and most preferably at least 45 rinses. The composition of the present invention is typically diluted in a ratio of at least 1: 400, preferably at least 1: 500, more preferably at least 1: 600, even more preferably at least 1: 800, or even more preferably at least least 1: 1000.

After applying the composition to the surface, allow to dry for at least 5 minutes.

The surface can optionally be wiped or cleaned after applying the composition and before it is allowed to dry. The applied composition may optionally be wiped using a mop, napkins, paper, cloth, or cleaned using a brush.

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The use of the composition.

In a third aspect, the invention relates to the use of the compositions of the invention to provide long-term surface hygiene.

Long-term hygiene is generally understood to mean maintaining the antimicrobial effect at a level of more than 2 log reduction for at least 10 rinses, where rinsing means applying a certain amount of water to the same area of the solid surface on which the composition was originally applied, and Wash water is 1-100 times the amount of composition initially applied to this area.

The antimicrobial effect preferably exceeds 3 log reductions, more preferably exceeds 4 log reductions, and even more preferably exceeds 5 log reductions.

The antimicrobial effect remains at the desired level, preferably for at least 15 rinses, more preferably at least 20 rinses, even more preferably at least 30 rinses, even more preferably at least 40 rinses and most preferably at least 45 rinses.

The composition of the present invention is generally diluted in a ratio of at least 1: 400, preferably at least 1: 500, more preferably at least 1: 600, even more preferably at least 1: 800, or even more preferably at least least 1: 1000.

The invention will now be illustrated using the following non-limiting examples.

Examples

Materials

Chemical / Material Category Manufacturer / Supplier Acid-Stable Surfactant Amine Ethoxylate 2EO Commercial Akzonobel Cetyltrimethylammonium chloride (STAC) Commercial Clariant Nonionic polymer Polyvinyl Alcohol (PVA) from 13 kDa to 23 kDa (from 13 to 23 kDa) Laboratory Sigma aidrich Polyvinyl alcohol (PVA) 98 k (98 kDa) Laboratory Sigma aidrich Polyethylene glycol (PEG) 200 Da (0.2 kDa) Laboratory Sigma aidrich Polyethylene glycol (PEG) 35k Yes (35 kDa) Laboratory Sigma aidrich Polyethylene glycol (PEG) 1L Yes (100 kDa) Laboratory Sigma aidrich REO 2L Yes (200 kDa) Laboratory Sigma aidrich Hydroxyethyl cellulose 105k Yes (105 kDa) Commercial Akzonobel Cationic silane Dimethyloctadecyl [3 (triethoxysilyl) propyl] ammonium chloride Commercial Zydex industries Acid Hydrochloric acid Laboratory Sigma aldrich Sulfamic acid Commercial Sigma aldrich Sequestrant Dequest 2010 Commercial Italmatch chemicals Water Distilled water Commercial -

Obtaining compositions.

All compositions were prepared using a Heidolph overhead mixer, model RZR 2051 control. The ingredients were introduced sequentially into the main mixer in the following order: water, sulfamic acid, amine ethoxylate 2EO, a pre-prepared mixture of a solution of cationic silane and a solution of non-ionic polymer, cetyltrimethylammonium chloride, sequestrant and hydrochloric acid. Before adding the next ingredient, the previous ingredient was completely dissolved. Flavoring agent and colorant, if necessary, can be added to the main mixer before the introduction of hydrochloric acid.

Stability.

Compositions that were not phase separated and were isotropic (visually clear / slightly hazy) were considered stable, while compositions that showed any phase separation / precipitation observed immediately after preparation were considered unstable.

Contact angle measurements.

The contact angle in accordance with the present invention is the angle that the surface of a liquid droplet forms to a solid surface. The contact angle determines the hydrophobicity attached to the surface. Contact angles greater than 40 ° are considered good; angles greater than 70 ° are more preferred.

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The contact angle of a fixed droplet was measured using a Cruz goniometer by placing a drop of distilled water of 10 μl on a substrate. All contact angle measurements were performed on a commercially available ceramic tile.

About one gram of the product was applied to the tile (10 x 10 cm). Using a brush, the product was distributed over the tile and left to contact the surface for 20 minutes. After 20 minutes, the product was washed with water to clean the surface with a brush and then the contact angle was measured.

Evaluation of the hygienic properties of the compositions according to EN 1276.

To assess hygienic properties, the product was diluted with sterile water in different ratios (from 1: 0 to 1: 2000). 8 ml of diluted samples were taken in a 100 ml sample container. A bacterial suspension in saline solution containing 10 ⁸ cells was obtained, 4.1 ml of the bacterial suspension was added in 1 ml of sterile 0.3% BSA solution (simulation of clean conditions) or in 1 ml of sterile 3% BSA solution (simulation of dirty conditions) and left stand for 2 minutes At the end of the contact period, the mixture was transferred to a sample container containing dilutions of the compositions. At the end of the 5-minute contact time, the mixture was vortexed and 1 ml of the mixture was transferred to a test tube containing 9 ml of neutralizing broth (D / E). Serial dilutions of this mixture were performed in D / E and further counting was performed using TSA. The results were recorded after 24-48 hours of incubation at 37 ° C and a log reduction was calculated. A dilution in which more than 5 log reduction in bacterial count was obtained was considered as having passed the hygiene assessment according to EN 1276.

Example 1. The effect of the molecular weight of a non-ionic polymer on the stability of the composition.

In this example, exp. 1-5, comprising a non-ionic polymer having a molecular weight within the scope of the present invention, was compared to comp. exp A comprising a non-ionic polymer having a molecular weight outside the scope of the present invention

Set The ex. 1 The ex. 2 The ex. 3 The ex. 4 The ex. 5 Comp. exp A Acid-stable surfactant,% by mass. Amine Ethoxylate 2EO 1.55 1.55 1.55 1.55 1.55 1.55 STAS 0.77 0.77 0.77 0.77 0.77 0.77 Cationic silane,% by mass. 0.1 0.1 0.1 0.1 0.1 0.1 Nonionic polymer % by mass. 0.1 0.1 0.1 0.1 0.1 0.1 A type PVA 13k Da (13 KDa) PVA 98k Da (98 kDa) Peg 200 Da (0.2 kDa) Peg 35k Da (35 kDa) PEG 1L Da (100 kDa) REO 2L Da (200 kDa) Acid,% by mass. Sulphates new acid 6.00 6.00 6.00 6.00 6.00 6.00 Hydrochloric acid 8.00 8.00 8.00 8.00 8.00 8.00 Sequestrant,% by mass. 0.19 0.19 0.19 0.19 0.19 0.19 Water,% by mass. up to 100 up to 100 up to 100 up to 100 up to 100 up to 100 pH 1 1 1 1 1 1 Stability Single phase Single phase Single phase Single phase Single phase Unstable Contact angle 84 ° 86 ° 90 ° 83 ° 80 ° -

The above table shows that a stable composition was obtained when the molecular weight of the polymer was in accordance with the invention.

Example 2. The effect of the concentration of non-ionic polymer on the stability of the composition.

In this example, various concentrations of non-ionic polymer were compared. The ex. 6 is a composition comprising a non-ionic polymer in a concentration within the scope of the present invention, and comp. exp B and comp. exp C are comparative compositions comprising a non-ionic polymer at concentrations outside the scope of the present invention.

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Composition Comp. exp IN The ex. 6 Comp. exp FROM Acid-stable Amine Ethoxylate 2EO 1.55 1.55 1.55 STAS 0.77 0.77 0.77 surfactant substance,% by mass. Cationic silane,% by mass. OD 0.1 0.1 Non-ionic polymer (PVA 13K Yes (13 kDa)), 0.02 0.1 4,5 % by mass. Acid, Sulfamic Acid 6.00 6.00 6.00 % by mass. Hydrochloric acid 8.00 8.00 8.00 Sequestrant,% by mass. 0.19 0.19 0.19 Water,% by mass. up to 100 up to 100 up to 100 pH 1 1 1 Stability Unstable- One Unstable- drinking phase drinking Contact angle - 84 ° -

The above table shows that a stable composition is obtained at a concentration of non-ionic polymer in accordance with the invention.

Example 3. The effect of non-ionic polymer, not corresponding to the invention, on the stability of the composition.

In this example, a composition was obtained (comp. Exp. AA) comprising a non-ionic polymer according to US 5411485

Composition Comp. exp AA Acid-stable surfactant,% by mass. Amine Ethoxylate 2EO 1.55 STAS 0.77 Cationic silane,% by mass. 0.1 Nonionic polymer % by mass. 0.1 A type Hydroxyethyl cellulose 105kDa (105 kDa) Acid,% by mass. Sulfamic acid 6.00 Hydrochloric acid 8.00 Sequestrant,% by mass. 0.19 Water,% by mass. up to 100 pH 1 Stability Unstable Contact angle -

The table above shows that a stable composition was not obtained when the non-ionic polymer used was not in accordance with the present invention.

Example 4. The effect of the concentration of cationic silane on the hydrophobicity and stability of the composition.

In this example, the effect of various concentrations of cationic silane was compared. The ex. 7 was a composition comprising silane in a concentration within the scope of the present invention, and comp. exp D-F were comparative compositions comprising silane in concentrations outside the scope of the present invention.

Composition Comp. exp D Comp. exp E The ex. 7 Comp. exp F Acid-stable surfactant,% by mass. Amine Ethoxylate 2EO 1.55 1.55 1.55 1.55 STAS 0.77 0.77 0.77 0.77 Cationic silane,% by mass. 0 0.01 0.1 0.5 Non-ionic polymer (PVA 13K Yes (13 kDa),% by mass. 0 0.1 0.1 0.1 Acid,% by mass. Sulfamic acid 6.00 6.00 6.00 6.00 Hydrochloric acid 8.00 8.00 8.00 8.00 Sequestrant,% by mass. 0.19 0.19 0.19 0.19 Water,% by mass. up to 100 up to 100 up to 100 up to 100 pH 1 1 1 1 Stability Single phase Single phase Single phase Unstable chiva Contact angle 34 ° 34 ° 84 ° -

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The table above shows that a stable composition having the desired hydrophobicity is obtained at silane concentrations within the scope of the present invention. It should be noted that in the composition, which included silane in a concentration below the required range, hydrophobicity was weakened, whereas in compositions that included silane in a concentration above the required range, the stability of the composition was greatly reduced.

Example 5. The effect of the ratio of cationic silane / non-ionic polymer on the stability of the composition.

This example demonstrates the effect of the cationic silane / nonionic polymer ratio on the stability of the composition. Examples 9-15 are compositions comprising a cationic silane and a polymer in the proportions according to the invention, and comp. exp G and H are compositions comprising a cationic silane and a polymer in ratios outside the scope of the present invention

Composition Comp. AND The ex. 9 The ex. 10 The ex. eleven The ex. 12 The ex. thirteen Acid-stable surfactant,% by mass. Amine Ethoxylate 2EO 1.55 1.55 1.55 1.55 1.55 1.55 STAS 0.77 0.77 0.77 0.77 0.77 0.77 Cationic silane,% by mass. 0 0.02 0.04 0.06 0.08 0.1 Nonionic polymer (PVA 13K Yes (13 kDa),% by mass. 0.2 0.18 0.16 0.14 0.12 0.1 Attitude Cationic Silane: Non-ionic polymer - 1: 9 1: 4 3: 7 2: 3 1: 1 Acid,% by mass. Sulfamic acid 6.00 6.00 6.00 6.00 6.00 6.00 Hydrochloric acid 8.00 8.00 8.00 8.00 8.00 8.00 Sequestration,% by mass. 0.19 0.19 0.19 0.19 0.19 0.19 Water,% by mass. up to 100 BEFORE 100 BEFORE 100 BEFORE 100 up to 100 BEFORE 100 pH 1 1 1 1 1 1 Stability S S S S S S Composition Exp. 14 Exp. fifteen Comp. exp G Comp. exp N Comp. exp. 12 Acid stable surfactant, % by mass. Amine Ethoxylate 2EO 1.55 1.55 1.55 1.55 1.55 STAS 0.77 0.77 0.77 0.77 0.77 Cationic silane,% by mass. 0.12 0.14 0.16 0.18 0.2 Nonionic polymer (PVA 13K Yes (13 kDa),% by mass. 0.08 0.06 0.04 0.02 0 Attitude Cationic Silane: Non-ionic polymer 3: 2 7: 3 4: 1 9: 1 - Acid,% by mass. Sulfamic acid 6.00 6.00 6.00 6.00 6.00 Hydrochloric acid 8.00 8.00 8.00 8.00 8.00 Sequestration,% by mass. 0.19 0.19 0.19 0.19 0.19 Water,% by mass. up to 100 up to 100 up to 100 up to 100 up to 100 pH 1 1 1 1 1 Stability S S and and and

S is one phase;

U is unstable.

The above table shows that a stable composition was not obtained when the ratio of silane to non-ionic polymer was outside the scope of the present invention.

Example 6. The excellent antimicrobial effect of the composition.

This example demonstrates the excellent antimicrobial effect of the composition when using a non-ionic polymer with a high molecular weight.

EN 1276 in clean conditions and at 5 min contact time

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Composition Breeding Average Staphylococcus aureus ATCC 6538 Composition Comp. exp D 1 : 400 > 5 log reduction 1 : 600 <5 log reduction The composition of Example 2 1 : 600 > 5 log reduction 1 : 800 <5 log reduction Pseudomonas aeruginosa ATCC 15442 Composition Comp. exp D 1 : 800 > 5 log reduction 1: 1000 <5 log reduction The composition of Example 2 1: 1000 > 5 log reduction 1: 1200 > 5 log reduction

EN 1276 in dirty conditions and at 5 min contact time

Composition Breeding Average Pseudomonas aeruginosa ATCC 15442 Composition Comp. exp D 1: 400 > 5 log reduction 1: 500 <5 log reduction The composition of Example 2 1: 500 > 5 log reduction 1: 600 > 5 log reduction

The table above shows that the composition of example 2 shows more than 5 log reduction and undergoes hygienic properties according to EN 1276 compared to a control in which the polymer is completely absent (Comp. Exp. D).

Claims (15)

CLAIM 1. Composition for processing hard surfaces, including: a) from 0.1 to 10 wt.% a mixture of acid-stable surfactants selected from cationic and non-ionic surfactants; b) from 0.05 to 0.4 wt.% of a cationic silane having the formula (R ₃ ) _y (RO) _{3- y} Si (CH ₂ ) _n N ⁺ (Ri) _x (R ₂ ) 3-x Z ' in which R ₁ represents a C ₆ -C ₁₈ alkyl or aryl group; R ₂ represents a C ₁ -C ₅ alkyl group; R represents a C ₁ -C ₄ alkyl group; R ₃ represents a C ₁ -C ₄ alkyl group; Z represents a halide ion; y is an integer from 0 to 2; x is an integer from 1 to 3 and n is 3; c) from 0.05 to 4 wt.% a water-soluble non-ionic polymer having a molecular weight of from 10 to 150 kDa, of formula B - (- CH ₂ -CH-) pON in which n = 3-2300; and d) water, where the pH of the composition is 2 or less, and where silane and polymer are present in a mass ratio of from 1:10 to 3.5: 1. 2. The composition for processing hard surfaces according to claim 1, in which the silane and polymer are present in a mass ratio of from 1: 5 to 1: 1. 3. A composition for treating hard surfaces according to claim 1 or 2, the pH of which is from 1 to 2. 4. The composition for processing hard surfaces according to any one of claims 1 to 3, in which the integer y is 0. 5. A composition for treating hard surfaces according to any one of claims _{1 to 4} , in which R ₁ represents a C ₁₀ -C ₁₈ -alkyl or aryl group. 6. A composition for treating hard surfaces according to any one of claims 1 to 5, in which the water-soluble non-ionic polymer is polyvinyl alcohol. 7. A composition for treating hard surfaces according to any one of claims 1 to 6, in which the non-ionic polymer has a molecular weight of from 10 to 100 kDa. 8. A method of ensuring long-term hygiene of a hard surface, comprising the following successive steps: a) the composition is applied to the surface according to any one of claims 1 to 6; b) the surface is allowed to dry; c) the surface is rinsed. - 9 033815 9. A method of providing an antimicrobial effect with a magnitude of more than 2 log reduction for hard surfaces, comprising the following successive stages: a) the composition is applied to the surface according to any one of claims 1 to 6; b) the surface is allowed to dry; c) the surface is rinsed at least 10 times by applying a certain amount of water to the same area of the solid surface on which the composition was originally applied, the amount of washing water being 1-100 times greater than the amount of composition originally applied to this area. 10. The method according to claim 9, in which the antimicrobial effect exceeds 3 log reduction. 11. The method according to claim 9, in which the antimicrobial effect exceeds 4 log reduction. 12. The method according to claim 9, in which the antimicrobial effect exceeds 5 log reduction. 13. The method according to any one of claims 9 to 12, wherein the number of rinses in step c) is at least 15. 14. The method according to any one of claims 9-12, wherein the number of rinses in step c) is at least 20. 15. The use of compositions according to any one of claims 1 to 7 to ensure long-term hygiene of a hard surface.