ES2201165T3 - CLEANING COMPOSITIONS OF HARD 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

Surface Cleaning Compositions hard.

Technical field

The invention relates to the cleaning of hard surfaces, especially, but not exclusively, of the soils.

Background

Compositions for surface cleaning Hard have been the subject of deep technical discussions. Would desirable that these types of compositions had, in addition to the ability to clean effectively, the property of conferring a Good shine to cleaned surfaces. However, the brightness of the surface is often compromised by the residues of the applied compositions that take the form of stripes upon evaporation Water.

This problem is more pronounced when the compositions are used without rinsing after cleaning and when the compositions are formulated in form concentrated, with higher content of active ingredients and lower water amount.

Therefore, the present invention is intended to Object provide compositions for surface cleaning hard to effectively clean both concentrated and in diluted form and do not leave streaks after cleaning.

Summary of the invention

In a first embodiment, the invention relates to to a hard surface cleaning composition, which understands:

(a) a nonionic surfactant hydrophilic; Y

(b) an alcohol C8-C18; Y

(a) a nonionic surfactant hydrophobe; Y

(d) an anionic surfactant sulfated;

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

said composition comprises from 0.5% to 8.0% in weight of said hydrophilic nonionic surfactant (a), or mixtures of the same, and wherein said hydrophilic nonionic surfactant is a ethoxylated alcohol of formula CxEOyH or an ethoxylated alcohol and propoxylate of formula CxPOyEOy ', in which x is an integer from 9 to 14, e and e (y + y ') are an integer from 8 to 30, containing said composition from 0.1% to 3% by weight of the total composition of the C8-C18 alcohol mentioned (b); in where

said composition comprises from 1% to 20% by weight of said hydrophobic nonionic surfactant (c), or mixtures thereof, and wherein said hydrophobic nonionic surfactant is an alcohol ethoxylate of formula CxEOyH or an ethoxylated and propoxylated alcohol of formula CxPOyEOy ', in which x is an integer from 9 to 16, e and e (y + y ') are an integer from 2 to 7, said composition containing 0.5% to 10% of said anionic surfactant sulfated

In a second embodiment, the invention relates to to the use of the hard surface cleaning composition mentioned to improve the brightness of hard surfaces that have been cleaned with it.

The invention also relates to the process of hard surface cleaning with diluted compositions or net.

Detailed Description of the Invention Hard surfaces

In some embodiments of the invention, they are combined and use several components in a cleaning composition of hard surfaces for the purpose of giving shine to hard surfaces cleaned with said compositions. In the this document the term "hard surfaces" refers to generally to floors, walls, windows, kitchen furniture and bathroom, appliances and dishes.

Brightness

Obtaining a good final shine depends basically two factors, namely: a good distribution of cleaning product on the surface and the absence of crystallization during drying. If both goals are achieved, a scratch free result will be obtained. The phenomenon of Striped appearance can therefore be described as the appearance of visible residues of the cleaning composition as it the water of the composition or the wash water evaporates. The crystallinity and molecular aggregation during evaporation give place to the appearance of stripes that reduce the quality of brightness final. Therefore, in the present invention, the capacity of a composition to confer "shine" to surfaces it refers to the ability of the composition to leave no residue or well leave imperceptible residues on the surfaces after water evaporate In most cases, the ability to different compositions to impart gloss can be evaluated at simple sight, although it is also possible to assess the difference using a brightness measuring device such as a Sheen® 155. An appropriate method to assess the capacity of a composition to leave no residue or leave few is to measure initially the brightness of a given surface, then apply the cleaning composition on the surface, to then let it dry and finally measure again the brightness on the surface on which the composition. The smaller the difference, the better the brightness.

The components

As the initial component or component (a), the Compositions according to the present invention include a non-surfactant hydrophilic ionic or mixtures thereof. Among the surfactants not hydrophilic ionics suitable for use according to the invention are alkoxylated alcohols, preferably alcohols ethoxylated. This type of surfactants can be represented by the formula CxEOyH, where C symbolizes the hydrocarbon chain of the  alcoholic raw material and x represents the length of the chain hydrocarbon. EO represents ethoxy groups e and represents the degree of average ethoxylation, that is, the average number of moles of groups ethoxy per mole of alcohol. Among the nonionic surfactants hydrophilic suitable for use according to the invention is include those where x has a value of 9 to 18, preferably from 9 to 14, and the average value of y is from 8 to 30, preferably from 10 to 20. They are also suitable as hydrophilic nonionic surfactants ethoxylated alcohols and propoxylates, which can be represented by the formula CxPOyEOy ', where x is as previously described e (y + y') It is like the value and described above. The compositions according the invention may comprise mixtures of non-ionic substances designated hydrophilic, and the compositions may contain between the 0.5% and 8.0%, preferably between 1% and 4% by weight of the total composition of said hydrophilic nonionic surfactants, or mixtures thereof.

As the second component or component (b), the compositions according to the invention contain an alcohol with a chain hydrocarbon that includes 8 to 18 carbon atoms, preferably from 12 to 16. The hydrocarbon chain can be branched or linear as well as mono-, di- or polyalcohol type. The compositions herein contain between 0.1% and a 3% by weight of the total composition of said alcohol, or mixtures of same, preferably from 0.1% to 1%.

As a third component, the compositions according to the invention contain a hydrophobic non-ionic surfactant (c) or mixtures thereof. Among hydrophobic nonionic surfactants suitable for use according to the invention are the alkoxylated alcohols, preferably ethoxylated alcohols. East type of surfactants can be represented by the formula CxEOyH, where C symbolizes the hydrocarbon chain of matter alcoholic premium and x represents the length of the chain hydrocarbon. EO represents ethoxy groups e and represents the degree of average ethoxylation, that is, the average number of moles of groups ethoxy per mole of alcohol. Among the nonionic surfactants hydrophobes suitable for use according to the invention are include those where x has a value of 9 to 18, preferably from 9 to 16, and the value of y is from 2 to 7, preferably from 4 to 7. They are also suitable as hydrophobic nonionic surfactants ethoxylated alcohols and propoxylates, which can be represented by the formula CxPOyEOy ', where x is as previously described e (y + y') It is like the value of y described above. The compositions according to the invention may comprise mixtures of the substances not hydrophobic ionic noted, and the compositions may contain from 1% to 20%, preferably from 3% to 15%, by weight of the composition total of said hydrophobic nonionic surfactants, or mixtures of the same.

As a fourth component, (d), the compositions according to the invention they must contain an anionic surfactant in the form sulfated anionic surfactant, as opposed to a sulfonated anionic surfactant. Among the anionic surfactants sulfates suitable for use according to the invention are include alkylsulfates and alkoxylated alkyl sulfates that may Obtained by sulfating an alcohol or an alkoxylate alcohol, respectively. Typical alkoxylation groups for these Surfactants are ethoxy and propoxy groups, and alkylethoxysulfates suitable for use according to the invention can be represented using the formula CxEOyS, where C symbolizes the string hydrocarbon of the alcoholic raw material and x represents the length of the hydrocarbon chain. EO represents ethoxy groups and and represents the average degree of ethoxylation, that is, the number half moles of ethoxy groups per mole of alcohol. S represents a sulfate group Among the anionic surfactants of alkylethoxysulfates suitable for use according to the invention They include those in which x adopts a value of 10 to 14 and a value from 1 to 5. Identically, alkylpropoxysulfates suitable can be represented as CxPOyS, with intervals identical for x and y.

A specific sulfated anionic surfactant for use according to the invention consists of a mixture of a ethoxylated alkyl sulfate and a propoxylated alkyl sulfate according to The above formulas. The compositions according to the invention they contain from 0.5% to 10%, preferably from 0.5% to 4% of said sulfated anionic surfactant or mixtures thereof.

An optional component but especially preferred herein is an additive system specific reinforcers that further enhances the cleansing effect without impair brightness. This fifth component comprises a salt of carbonate or polyphosphate and a polycarboxylate salt, where preferably the weight ratio of polycarboxylate to carbonate or polyphosphate is at least 1: 0.05. According to the present invention, "salt" means both the acid form of all additives reinforcer suitable for use according to the invention as any salt thereof.

Carbonate additives suitable for use according to the invention conform to the formula X2CO3 or XHCO 3, where X is a suitable counterion, generally K +, Na + NH4 <+>. Polyphosphates suitable for use according to the invention include compounds of the formula X_ {a} H_ {b} PO_ {4}, where a and b are whole numbers of form that a + b = 3, and a or b can be 0, or X_ {a} H_ {b} P3 O_ {10}, where a and b conform to the formula a + b = 5, and a or b can be 0, and where X is a suitable counterion, in particular K +, Na + or NH4 +.

Among the polycarboxylates suitable for Use according to the invention includes organic polycarboxylates where the highest LogKa, measured at 25 ° C / 0.1M ionic strength, is places between 3 and 8, and where the sum of LogKCa + LogKMg, measured at 25ºC / 0.1M of ionic strength is greater than 4, and where LogKCa = LogKMg ± 2 units, preferably 1.5 units, measured at 25ºC / 0.1M ionic strength.

Among the suitable and preferred polycarboxylates Citrate and compounds are found with the formula:

CH (A) (COOX) -CH (COOX) -O-CH (COOX) -CH (COOX) (B)

where A is H or OH; B is H u -O-CH (COOX) -CH2 (COOX); and X is H or a salt-forming cation. If, for example, in the general formula indicated above both A and B are H, the compound It is oxidisuccinic acid and its water-soluble salts. If A is OH and B is H, so the compound is monosuccinic tartrate acid (TMS) and its water soluble salts. If A is H and B is -O-CH (COOX) -CH2 (COOX),  then the compound is disuccinic tartrate acid (TDS) and its water soluble salts. The mixtures of these reinforcing additives are especially preferred for use according to the invention. In Particular TMS and TDS are reinforcing additives that are described in U.S. Patent 4,663,071, granted to Bush et al. May 5th from 1987.

Other ether polycarboxylates suitable for use according to the invention are the anhydride copolymers maleic with ethylene or vinyl methyl ether, the acid 1,3,5-trihydroxybenzene-2,4,6-trisulfonic and carboxymethyloxysuccinic acid.

Other useful polycarboxylate additives are those ether hydroxypolycarboxylates represented by the structure next:

HO- [C (R) (COOM) -C (R) (COOM) -O] n -H

where M is hydrogen or a cation where salt resulting is water soluble, preferably a metal cation alkaline, ammonium or substituted ammonium, n has a value of about 2 to about 15 (preferably the value of n is about 2 to about 10, and better yet n has an average value of about 2 to about 4) and each R it can be the same or different and is selected from hydrogen, C 1-4 alkyl or alkyl C 1-4 substituted (preferably R is hydrogen).

Suitable ether polycarboxylates include also cyclic compounds, in particular alicyclic compounds as described in US Pat. 3,923,679; 3,835,163; 4,158,635; 4,120,874 and 4,102,903, all of them referenced in the present document

Among the cyclic compounds listed are preferable dipicolinic acid and chelidanic acid.

Other polycarboxylates suitable also for the Use according to the invention are melitic acid, succinic acid, polyimaleic acid, acid benzo-1,3,5-tricarboxylic acid benzopentacarboxylic acid, carboxymethyloxysuccinic acid and salts soluble thereof.

Other carboxylate-based reinforcing additives also suitable according to the invention are carbohydrates carboxylates described in US Pat. 3,723,322, Diehl, granted on March 28, 1973, and incorporated herein document as reference.

Other carboxylates suitable for use according to the invention, which do not meet the above criteria, they are alkali metal, ammonium and substituted ammonium salts of polyacetic acids. Examples of salts of reinforcing additives Polyacetic acids are the sodium, potassium, lithium, ammonium salts and substituted ammonium of ethylenediamine, tetraacetic acid and acid nitrilotriacetic

Other suitable polycarboxylates are those that they are also known as alkyliminoacetic reinforcing additives such as methyliminodiacetic acid, alanine or diacetic acid, the methylglycin diacetic acid, hydroxypropyliminodiacetic acid and other alkyliminoacetic acid reinforcing additives.

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Citrate is the most preferred of all reinforcing additives based on polycarboxylate for use according to the invention.

The present compositions comprise from 0.5% to 5% by weight of the total composition of the additive system reinforcers, preferably from 0.5% to 3%.

Another feature of the present compositions is that components (a) to (d) must be present in specific specific relationships. So, the components (a) and (b) should be present in a relationship of weight (a) / (b) from 1: 1 to 10: 1, preferably from 2: 1 to 7: 1. The components (c) and (b) must be present in a relationship of weight (c) / (b) from 5: 1 to 25: 1, preferably from 10: 1 to 20: 1. Likewise, components (d) and (c) must be present in a weight ratio (d) / (c) from 1: 1 to 1:10, preferably from 1: 2 to 1: 6 When a component is composed of a mixture of ingredients, instead of just one ingredient, relationships weight in the present invention are calculated based on the total weight of the component, that is, the sum of the quantities of the individual ingredients that constitute the component.

It is speculated that the compositions of the present invention combine three technological blocks that work each by themselves, but they find their preferred application when They are used together.

The first technological block consists of the combination, in the chosen ratios, of the non-ionic surfactant  Hydrophilic selected with the selected alcohol. In fact, these nonionic surfactants are particularly effective in the case of particulate dirt and greasy dirt, but They will leave streaks if used alone.

The second technological block consists of the combination, in the chosen ratios, of the non-ionic surfactant hydrophobic selected with the selected alcohol, along with the anionic surfactants based on selected sulfates. So similar to the first block of reinforcing additives, these nonionic surfactants and anionic surfactants are particularly effective in the case of dirt in the form of particles and greasy dirt, but will leave streaks if used by themselves. The addition of alcohol in proportions Selected provides a sharper brightness.

The third technology block is the mixed system of reinforcing additives. Polycarboxylates combined with surfactants would leave streaks, while carbonates or polyphosphates combined with surfactants would cause it to deposit a crystalline film on the surface. However, the combination of these reinforcing additives, together with the Surfactants, leaves no scratches or visible films. This improvement of efficacy is especially visible in the presence of surfactants anionic, which tend to form stripes even in their purest form.

The compositions in the present invention may also contain different optional additional ingredients such as bleaches, enzymes, dyes, perfumes and others aesthetic products

The compositions of the present invention are preferably formulated as aqueous liquids. They can contain of 1% to 30% by weight of the total composition of active substances, is say, 99% to 70% water. In the present invention, "net" is refers to a composition that contains the indicated amount of active substances

In a first mode, the composition according to  invention is applied net on a surface to clean it and, of optionally but preferably, it is then removed by rinsing with Water. In a second embodiment, the compositions are diluted first with water, usually 40 to 320 times and then apply on the surface to clean. Then, in this second mode, the composition can be cleared from the surface, Although this is not necessary. The first mode results generally more suitable for very dirty surfaces, while the second is generally more suitable for large surfaces and dirty, such as floors.

The invention is further illustrated by the  following examples.

Examples

one two 3 4 5 C12-14 EO20 - one 1.7 - - C12-14PO3EO7 - - - - two C12-14 EO10 - - - two - C10-12 EO10 1.5 - - - -

Examples (continuation)

one two 3 4 5 C9-11EO5 - 2.4 - 2.4 2.4 C11EO5 - - 5 - - C12-14 EO5 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 C12-14 S - 1.0 - 1.0 1.0 C12-14 EO3S 1.3 - 1.5 - - Citrate 1.0 0.7 1.0 0.7 0.7 Na2CO3 0.7 0.6 0.3 0.6 0.6

6 7 8 9 10 C12-14 EO20 - 1.4 - 2.5 1.8 C12-14PO3EO7 - - - - - C12-14 EO10 - - - - - C10-12 EO10 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-butyloctanol 0.3 - 0.2 0.5 0.5 C12-14 S 1.2 1.5 - - 1.8 C12-14 EO3S - - 1.5 2.5 - Citrate 0.5 1.0 0.5 0.7 0.7 Na2CO3 0.3 0.4 0.4 one 1.0

Claims (10)

1. A surface cleaning composition hard, which includes

(a) a nonionic surfactant hydrophilic; Y

(b) an alcohol C8-C18; Y

(a) a nonionic surfactant hydrophobe; Y

(d) an anionic surfactant sulfated;

in weight ratios of (a) :( b) from 1: 1 to 10: 1, from (c) :( b) from 5: 1 to 25: 1, and from (d) :( b) from 1: 1 to 1:10, in where: said composition comprises from 0.5% to 8.0% in weight of said hydrophilic nonionic surfactant (a), or mixtures of the same, and wherein said hydrophilic nonionic surfactant is a ethoxylated alcohol of formula CxEOyH or an ethoxylated alcohol and propoxylate of formula CxPOyEOy ', in which x is an integer from 9 to 14, e and e (y + y ') are an integer from 8 to 30, said composition containing from 0.1% to 3% by weight of the total composition of the C8-C18 alcohol mentioned (b); in where: said composition comprises from 1% to 20% by weight of said hydrophobic nonionic surfactant (c), or mixtures thereof, and wherein said hydrophobic nonionic surfactant is an alcohol ethoxylate of formula CxEOyH or an ethoxylated and propoxylated alcohol of formula CxPOyEOy ', in which x is an integer from 9 to 16, e and e (y + y ') are an integer from 4 to 7, said composition containing 0.5% to 10% of said anionic surfactant sulfated 2. A composition according to claim 1, in wherein said composition also contains 0.5% to 5% by weight of the total compound, preferably 0.5% to 3% of a system of reinforcing additives comprising a carbonate salt or polyphosphate and a polycarboxylate salt, preferably a salt Citrate 3. A composition or use according to claim 2, wherein the weight ratio of said carbonate or polyphosphate to said polycarboxylate is at least 1: 0.05. 4. A composition according to any of the previous claims, wherein said nonionic surfactant hydrophilic is an ethoxylated alcohol of formula CxEOyH or an alcohol ethoxylated and propoxylated formula CxPOyEOy ', where x is a number integer from 9 to 14, e and e (y + y ') are an integer from 10 to 20. 5. A composition according to any of the previous claims, wherein said nonionic surfactant hydrophobic is an ethoxylated alcohol of formula CxEOyH or an alcohol ethoxylated and propoxylated formula CxPOyEOy ', where x is a number integer from 9 to 16, e and e (y + y ') are an integer from 4 to 6. 6. A composition according to any of the previous claims, wherein said alcohol (b) is a C12-C16 alcohol. 7. A composition according to any of the previous claims, wherein said anionic surfactant sulfated (d) is a mixture of an ethoxylated alkyl sulfate of formula CxEOyS and a propoxylated alkyl sulfate of formula CxPOyS in which x is an integer from 10 to 14 and y is an integer of 1 to 5 8. A hard surface cleaning process in which a composition according to any of the claims 1 to 7 apply net on the surface and optionally immediately it is clarified of the same. 9. A hard surface cleaning process wherein a composition according to any of the claims 1 to 7 is diluted with water, then applied on the surface and optionally, immediately, it is clarified from the same. 10. The use of a cleaning composition of hard surfaces according to any of claims 1 to 7 to improve the brightness of hard surfaces that have been cleaned with it.