CZ351398A3 - Mixture for cleansing solid surfaces - Google Patents

Abstract

The cleaning of hard surfaces is addresses, where no visible streaks or residues are left on the surfaces which have been cleaned. The invention encompasses several embodiments which combine a hydrophilic nonionic surfactant with a selected alcohol, in specific ratios, or a hydrophobic nonionic surfactant with a selected alcohols and a sulfated anionic surfactant, in specific ratios, or all these components together.

Description

Technical field

The invention relates to the cleaning of hard surfaces, particularly but not exclusively to floors.

BACKGROUND OF THE INVENTION

Hard surface cleaning compositions have been extensively discussed in the art. Desirably, in addition to the ability to effectively clean, these compositions have the ability to provide good gloss to cleaned surfaces. However, the gloss of the surface is often compromised by residues of the mixture that remain on the surfaces and appear as streaks or streaks after the water has evaporated.

This problem becomes more critical when the compositions are used without rinsing after cleaning and when the compositions are formulated as concentrated compositions containing more assets (activators) and less water. It is therefore an object of the present invention to provide hard surface cleaning compositions which clean efficiently in concentrated or dilute form and which leave no or little streaks or streaks after cleaning.

SUMMARY OF THE INVENTION

In a first embodiment, the invention includes the use of a hard surface cleaning composition comprising:

(a) a hydrophilic nonionic surfactant; and (b) a C8-C18 alcohol;

in a weight ratio (a) :( b) of from 1: 1 to 10: 1, for improved gloss of the cleaned hard surfaces.

In a second embodiment, the invention includes the use of a hard surface cleaning composition comprising:

(c) a hydrophobic nonionic surfactant; and (d) a sulfated anionic surfactant; and (b) a C8-C18 alcohol;

in weight ratios of (c) :( b) from 5: 1 to 25: 1, and (d) :( c) from 1: 1 to 1:10, for improved gloss of the cleaned hard surfaces.

In a third embodiment, the invention combines the first two embodiments and thus includes the use of a hard surface cleaning composition comprising:

(a) a hydrophilic nonionic surfactant; and (b) a C8-C18 alcohol; and (c) a hydrophobic nonionic surfactant; and (d) a sulfated anionic surfactant;

in weight ratios of (a): (b) from 1: 1 to 10: 1, (c): (b) from 5: 1 to

25: 1, and (d) :( c) from 1: 1 to 1:10, for improved gloss of hard surfaces that have been cleaned.

In a fourth embodiment, the invention comprises a hard surface cleaning composition comprising:

(c) a hydrophobic nonionic surfactant; and (d) a sulfated anionic surfactant; and (b) a C8-C18 alcohol;

in weight ratios of (c) :( b) from 5: 1 to 25: 1, and (d) :( c) from 1: 1 to 1:10.

In this fourth embodiment, a composition is further preferred which further comprises a hydrophilic nonionic surfactant (a), and wherein the weight ratios (a) :( b) are from 1: 1 to 10: 1.

The present invention further comprises methods of cleaning hard surfaces with the compositions, either diluted or clean.

DETAILED DESCRIPTION OF THE INVENTION

Hard surfaces

In some embodiments of the invention, hard surface cleaning compositions are combined and used to provide a gloss of hard surfaces that are cleaned with such compositions. Depending on the application in this case, hard surfaces usually refer to floors, walls, windows, kitchen and bathroom equipment, household appliances and utensils.

Gloss

Obtaining a good final polishing result is essentially the sum of two factors, namely: good spreading of the cleaning product on a given surface and no crystallization during drying. When both of these factors are achieved, the end result is obtained without streaking or streaking. This streaking phenomenon can thus be described as the appearance of visible residues from the cleaning composition when evaporating water from the composition or rinsing water. Molecular crystallinity and agglomeration during evaporation cause streaking, giving a poor polishing end result. Therefore, as used herein, the ability of the composition to provide gloss to respective surfaces refers to the ability of the composition to leave little or no eye-visible residue on the surfaces after evaporation of the water. In most cases, the ability of different mixtures to provide adequate shine can be evaluated by the human eye, but it is also possible to assess the difference using a gloss meter, such as a Sheen 155 gloss meter. measuring the gloss of the surface, then applying the cleaning composition to the surface, then allowing time for the composition to dry, and finally re-measuring the gloss of the surface to which the composition is applied. The smaller the difference, the better the shine.

Components

As the first component, component (a), there is contained in the compositions herein a hydrophilic nonionic surfactant or mixtures thereof. Suitable hydrophilic nonionic surfactants for use herein are alkoxylated alcohols, preferably ethoxylated alcohols. These surfactants can be represented by the formula CxEOyH, where C symbolizes the hydrocarbon chain of the starting alcohol material, x represents the length of the hydrocarbon chain. EO represents ethoxy groups and y represents the average degree of ethoxylation, i.e. the average number of moles (gram-molecules) of ethoxy groups per mole (gram-molecule) of alcohol. Suitable hydrophilic nonionic surfactants for use herein include those wherein x is from 9 to 18, preferably from 9 to 14, and the average y is from 8 to 30, preferably from 10 to 20. Suitable hydrophilic nonionic surfactants are also ethoxylated and propoxylated alcohols which may be represented by the formula CxPOyEOy, wherein x is as above and (y + y) is as y in the above case. Compositions used herein may include mixtures of such hydrophilic nonionic surfactants, and said compositions comprise from 0.5 to 8.0%, preferably 1 to 4%, based on the total mixture of such hydrophilic nonionic surfactants or mixtures thereof. As a second component, component (b), the mixtures comprise an alcohol having a hydrocarbon chain containing 8 to 18 carbon atoms, preferably 12 to 16. The hydrocarbon chain may be branched or straight and may be mono-, di- or polyalcohols. The respective mixtures should contain from 0.1 to 3%, based on the total mixture of such alcohol or mixtures thereof, preferably from 0.1 to 1%.

said compositions comprising hydrophobic nonionic (c) or mixtures thereof. Suitable hydrophobic nonionic surfactants used herein include alkoxylated alcohols, preferably ethoxylated alcohols. These may be represented by the formula CxEOyH, where C symbolizes the hydrocarbon chain of the starting alcohol, x represents the length of its hydrocarbon chain. EO represents ethoxy groups and y

As a third component, here the surfactant represents the average degree of ethoxylation, ie the average number of moles of ethoxy groups per mole of alcohol. Suitable hydrophobic nonionic surfactants as used herein include those wherein x is from 9 to 18, preferably from 9 to 16, and y from 2 to 7, preferably from 4 to 7. Suitable hydrophobic nonionic surfactants also include ethoxylated and propoxylated alcohols, which may be represented by the formula CxPOyEOy, wherein x is as above and wherein (y + y) is as y in the above case. The compositions used may comprise mixtures of such hydrophobic nonionic surfactants and these compositions contain from 1 to 20%, preferably from 3 to 15%, by weight of the total mixture of such hydrophobic nonionic surfactants or mixtures thereof. As a fourth component, (d), the compositions used should contain an anionic surfactant such as a sulfated anionic surfactant as opposed to a sulfonated anionic surfactant. Suitable sulphated anionic surfactants as used herein include alkyl sulphates and alkoxylated alkyl sulphates, which may be prepared by sulphating the corresponding alcohol and the corresponding alcohol, respectively. alcohol alkoxylate. Such alkoxylating groups for such surfactants are ethoxy and propoxy groups, and suitable alkyl ethoxy sulfates for use may be represented by the formula CxEOyS, wherein C symbolizes the hydrocarbon chain of the starting alcohol material, x represents the length of its hydrocarbon chain. EO represents ethoxy groups and y represents the average degree of ethoxylation, i.e. the average number of moles of ethoxy groups per mole of alcohol. S is then a sulfate group. Suitable alkyl ethoxy sulfate anionic surfactants as used herein include those wherein x is from 10 to 14 and y is from 1 to 5. Likewise, suitable alkyl propoxy sulfates can be presented as C x POyS with identical ranges for x and y.

A particular sulfated anionic surfactant used herein is a mixture of ethoxylated alkyl sulfate and propoxylated alkyl sulfate according to the above formulas. Said compositions comprise from 0.5 to 10%, preferably from 0.5 to 4% of said sulfated anionic surfactant or mixtures thereof.

An optional but highly preferred component herein is a special system that further improves cleaning performance without adversely affecting the gloss. The fifth component comprises a carbonate or polyphosphate salt and a polycarboxylate salt, wherein the weight ratio of polycarboxylate to carbonate or polyphosphate is preferably at least 1: 0.05. As used herein, a salt refers to both the acidic forms of all components suitable for such use or to any of their salts. Suitable carbonate components used herein are of the formula X ₂ CO ₃ or XHCO ₂ , wherein X is a suitable counterion, typically K ⁺ , Na ⁺ , NH 4 ⁺ . Suitable polyphosphates for this use include compounds of formula XaHkPO ₄ , where a and b are integers where a + b = 3, aa or b may be 0, or Χ ₃ Η £ ΡβΟ ₁₀ , where a and b = 5, aa or b may be 0, and wherein X is a suitable counterion, especially K ⁺ , Na ⁺ or NH ₄ ⁺ .

Suitable polycarboxylates for use herein include organic polycarboxylates wherein the highest log KCa, measured at an ionic strength of 25 ° C / 0.1M, is between 3 and 8, wherein the sum of logKCa + logKMg, measured at an ionic strength of 25 ° C / O, 1M, is greater than 4, and wherein logKCa = logKMg of 2 units, preferably 1.5 units, measured at an ionic strength of 25 ° C / 0.1M. Such suitable and preferred polycarboxylates include citrate and compounds of the formula

CH (A) (COOX) - CH (COOX) - O - CH (COOX) - CH (COOX) (B) wherein A is H or OH; B is H or -O-CH (COOX) -CH ₂ (COOX); and X is H or a salt-forming cation. For example, if in the above formula both A and B are both H, then the compound is oxydisuccinic acid and its water-soluble salts. When A is OH and B is H, the compound is tartrate monosuccinic acid (TMS) and its water-soluble salts. If A is H and B is -O-CH (COOX) -CH ₂ (COOX), then the compound is tartaric disuccinic acid (TDS) and its water-soluble salts. Mixtures of these components are particularly preferred for this use. Specifically, TMS to TDS, these components are disclosed in US Pat. No. 4,663,071, filed by Bush et al.

May 5, 1987.

Still other ether polycarboxylates suitable for use herein include maleic anhydride-ethylene or vinyl methyl ether copolymers, 1,3,5-trihydroxybenzene-2,4,6-trisulfonic acid, and carbyxymethoxyoxycarbonic acid.

Other useful polycarboxylate components include the etherhydroxypolycarboxylates represented by the composition:

HO- [C (R) (COOM) -C (R) (COOM) -O] _n -H wherein M is hydrogen or a cation, wherein the resulting salt is a water-soluble, preferably alkaline, ammonium or substituted ammonium cation, n being about 2 to 15 (preferably n is from about 2 to about 10, more preferably n average 2 to 4) and each R is the same or different and selected from hydrogen, C ₁ _ ₄ alkyl or C _1-4 substituted alkyl (preferably R is hydrogen). Suitable ether polycarboxylates also include cyclic compounds, especially alicyclic compounds such as those described in US Pat. 3,923,679; 3,835,163; 4,158,635; 4,120,874 and 4,102,903, all of which are incorporated herein by reference.

Among these cyclic compounds, dipicolinic acid and chelidonic acid are preferred.

Other polycarboxylates suitable for use are mellitic acid, succinic acid, polymaleic acid, benzene-1,3,5-tricarboxylic acid, benzenepentacarboxylic acid, and carboxymethyloxysuccinic acid, and soluble salts thereof.

Other suitable carboxylate components for this case are the carboxylated carbohydrates disclosed in U.S. Pat. Pat. No. 3,723,322, filed on Die March 28, 1973, incorporated herein by reference.

Other suitable carboxylates for use herein which do not meet the above criteria are the alkali, ammonium and substituted ammonium salts of polyacetic acids. Examples of such polyacetic acid salts are sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylenediamine, tetraacetic acid and nitrilotriacetic acid.

Other suitable polycarboxylates are those also known as alkyl imino acetic compounds, such as methyl imino diacetic acid, alanine diacetic acid, methyl glycine diacetic acid, hydroxypropylene imino diacetic acid and alkyl imino acetic acid. The most preferred compound for this use is citrate.

The compositions herein comprise from 0.5 to 5% by weight of the total composition of the component system, preferably from 0.5 to 3%.

Another feature of said compositions is that components (a) to (d) must be present in certain specified ratios. Accordingly, components (a) and (b) must be present in a weight ratio of (a) to (b) of from 1: 1 to 10: 1, preferably 2: 1 to 7: 1. Components (c) and (b) must be present in a weight ratio (c) to (b) of from 5: 1 to 25: 1, preferably from 10: 1 to (d), and (c) must be present in a weight ratio of (c) d) 1:10, preferably 1: 2 to 1: 6. If an ingredient is comprised of a mixture of ingredients or ingredients as opposed to a single ingredient, the weight ratios are calculated here based on the weight amount of the ingredient, i.e. the added amounts of the individual ingredients making up the ingredient.

It is envisaged that such blends combine three technological blocks that work on their own, but where their shared use is preferred.

The first technological block is a combination of a selected hydrophilic nonionic surfactant with a selected alcohol in selected proportions.

are acid derivatives of all polycarboxylate acids

20: 1. And components to (c) from 1: 1 to

Ί

Indeed, these nonionic surfactants are particularly effective at individual greasy spots and greasy stains, but cause streaking when used on their own.

The second process block is a combination of the selected hydrophobic nonionic surfactant with the selected alcohol in selected proportions together with the selected sulfate anionic surfactants. As with the first block, these nonionic and anionic surfactants are particularly effective on particulate and greasy stains, but cause streaking when used on their own. Adding alcohol at the selected proportions will give a bright shine.

The third technological block is a system of mixed components. Polycarboxylates with surfactants would cause banding and carbonates or polyphosphates with surfactants would cause the crystalline film to settle on the surface. However, the combination of these components with the surfactants leaves no visible stripes or film. This improved effect is particularly visible in the presence of anionic surfactants, since these tend to form streaks when they are clean.

The compositions herein may further comprise a number of different, optional ingredients. These include bleaches, enzymes, dyes, perfumes, and other aesthetic ingredients.

The compositions herein are preferably formulated as aqueous liquids. They may contain from 1 to 30% by weight, based on the weight of the total mixture of active ingredients, i.e. from 99 to 70% of water. As used herein, net refers to a mixture containing that amount of asset.

In the first case, the mixture is applied undiluted on the respective surface to clean it and then optionally removed by rinsing with water. In the latter case, the compositions are first diluted with water, typically in a 40- to 320-fold amount, and then applied to the surface to be cleaned. Thereafter, in the latter case, the composition may or may not be rinsed off the surface. The first method is generally more advantageous for heavily soiled surfaces, while the second method is generally more favorable for large and lightly soiled surfaces, such as floors.

The invention is further illustrated by the following examples.

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Examples

1 2 3 4 5 6 C12-14 EO20 - - 1 1.7 - - C12-14PO3EO7 - - - - - 2 C12-14 EOIO - - - - 2 - C10-12 EOIO - 1.5 - - - - C9-11EO5 2.8 - 2.4 - 2.4 2.4 C11EO5 - - - 5 - - C12-14 EO5 4.2 3.0 3.6 - 3.6 3.6 C9-11 EO4 - 3.0 - - - - C12-OH - 0.3 - - - - 2-hexyldecanol - - - 0.4 - - 2-Butyloctanol 0.3 - 0.3 - 0.3 0.3 C12-14 S - - 1.0 - 1.0 1.0 C12-14 EO3S 1.0 1.3 - 1.5 - - Citran 0.7 1.0 0.7 1.0 0.7 0.7 NA2CO3 0.6 0.7 0.6 0.3 0.6 0.6 7 8 9 10 11 C12-14 EO20 - 1.4 - 2.5 1,8 C12-14PO3EO7 - - - - - C12-14 EOIO - - - - - C10-12 EOIO 2,0 - 1.0 - - C9-11EO5 - 2,0 - 6 4.3 C11EO5 4.0 - - - - C12-14 EO5 - 3.6 4,5 9 6.4 C9-11 EO4 - - 3.0 - - C12-OH - - - - - 2-hexyldecanol - 0.3 - - - 2-butyl alcohol 0.3 - 0.2 0.5 0.5 C12-14 S 1,2 1.5 - - 1,8 C12-14 EO3S - - 1.5 - 1,8 Citran 0.5 1.0 0.5 0.7 0.7 Na2CO3 0.3 0.4 0.4 1 1.0

99 99 99 99 99 • 99 99 99 9999

Claims (13)

PATENT CLAIMS 1. Use of a composition for cleaning hard surfaces of: (a) hydrophilic nonionic surfactants; and (b) a C8-C18 alcohol; in a weight ratio (a) :( b) of from 1: 1 to 10: 1, to the improved gloss of the cleaned hard surfaces. 2. Use of mixture to clean hard surfaces from ·. (c) hydrophobic nonionic surfactants; and (d) sulfated anionic surfactants; and (b) a C8-C18 alcohol; in weight ratios of (c) :( b) from 5: 1 to 25: 1, and (d) :( c) from 1: 1 to 1:10, to the improved gloss of the cleaned hard surfaces. 3. Use of a mixture to clean hard surfaces from: (a) hydrophilic nonionic surfactants; and (b) a C8-C18 alcohol; and (c) a hydrophobic nonionic surfactant; and (d) sulfated anionic surfactants; and in weight ratios of (a) :( b) from 1: 1 to 10: 1, (c) :( b) from 5: 1 to 25: 1, and (d) :( c) from 1: 1 to 1:10, to improve the gloss of cleaned hard surfaces. A hard surface cleaning composition comprising (c) a hydrophobic nonionic surfactant; and (d) a sulfated anionic surfactant; and (b) a C8-C18 alcohol; in weight ratios of (c) :( b) from 5: 1 to 25: 1, and (d) :( c) from 1: 1 to 1:10. The hard surface cleaning composition of claim 4, further comprising a hydrophilic nonionic surfactant (a) and wherein the weight ratio (a) :( b) is from 1: 1 to 10: 1. The composition or use of any one of the preceding claims, wherein said composition further comprises from 0.5 to 5% by weight of the total composition, preferably from 0.5 to 3%, of a component system comprising a carbonate or polyphosphate salt and a polycarboxylated a salt, preferably a citrate salt. The composition or use of claim 6, wherein the weight ratio of said carbonate or polyphosphate to said polycarboxylates is at least 1: 0.05. The composition or use of any preceding claim, wherein said composition comprises from 0.5 to 8.0 wt% of said hydrophilic nonionic surfactant (a) or a mixture thereof, and wherein said hydrophilic nonionic surfactant is an ethoxylated alcohol of formula CxEOyH or an ethoxylated and propoxylated alcohol of formula CxPOyEOy ', wherein x is an integer from 9 to 15, and y (y + y') are integers from 8 to 30, preferably from 10 to 20. The composition or use of any one of the preceding claims, wherein said composition comprises from 1 to 20 wt% of said hydrophobic nonionic surfactant (c) or a mixture thereof, and wherein said hydrophobic nonionic surfactant is an ethoxylated alcohol of formula CeEOyH or an ethoxylated and propoxylated alcohol of formula CxPOyEOy ', wherein x is an integer from 9 to 14 and y (y + y') are integers from 2 to 7, preferably from 4 to 6. The composition or use of any preceding claim, wherein said composition comprises from 0.1 to 3 wt% of said alcohol (b) and said alcohol is a C 12 -C 16 alcohol. The composition or use of any preceding claim, wherein said sulfated anionic surfactant (d) is a mixture of ethoxylated alkyl sulfates of formula CxEOyS and propoxylated alkyl sulfates of formula CxPOyS, wherein x is an integer from 1 to 5. A hard surface cleaning process, wherein the composition of any one of claims 4 to 11 is applied clean (undiluted) to said surface and optionally rinsed from the surface. A hard surface cleaning process, wherein the composition according to claims 4 to 11 is diluted with water, then applied to said surface and subsequently rinsed optionally.