SK81395A3 - Neutral cleaning agent - Google Patents

Abstract

The water-based agents proposed have a pH between 5 and 9 in the undiluted state and contain, in addition to surfactants and waxes or polymers as film-forming materials, an alcohol selected from the group comprising benzyl alcohol, 2-phenylethanol, 2-phenoxyethanol and mixtures thereof. The agents are intended for use above all in the diluted state for the cleaning and maintenance of floors.

Description

Neutral aqueous detergent

Technical field

The present invention relates to an aqueous composition which can be used in a diluted state for cleaning and maintenance of hard surfaces, particularly floors.

BACKGROUND OF THE INVENTION

In recent years and decades, not only the development of new flooring materials has been developed for the cleaning and maintenance of floors, but also many new cleaning methods and products have been developed. In practice, the choice of compositions is essentially determined by whether or not the floor is to be cleaned or preserved. First of all, compositions that provide more or less hard resistant films are used to maintain and preserve surfaces. For this purpose, the formulations usually contain, in an emulsified state, waxes or film-forming polymers, and cross-linked active substances, generally heavy metal salts, which, when dried on the treated surfaces, co-produce self-polishing or polishing processes.

teľné filmy. This is can achieve a long-lasting not surfaces, where the quality of the film also allows for their considerable mechanical stress. Removing these movies is self-

apparently possible and necessary only after soiling or damage. On the other hand, compositions intended for cleaning in particular contain a considerable proportion of surfactants, often together with alkaline reactants, organic solvents or abrasives. In many cases, these compositions allow the complete removal of dirt and old coatings, but the surfaces so cleaned are generally without protection against new soiling unless they are preserved again.

Since in many cases cleaning and maintenance of floor surfaces are required at the same time, in addition to the aforementioned compositions, such compositions have been developed which can simultaneously be cleaned and preserved. An example of such a composition can be found in the applications of German patents 21 21 926, 25 27 515, 35 33 531 and in British Patent Specification 1,528,592. While such compositions have favored a more or less alkaline reaction to achieve a high cleaning effect and safe emulsification. of wax or polymers, today's tendency is in the direction of neutral response compositions that are well-tolerated to the skin and do not attack more sensitive floor coverings. These advantages will, of course, be common with compositions with limited cleaning and wetting properties. That is, first, the whole film of the aqueous composition may crack when dried and, in circumstances where even individual drops are formed, the resulting film may have a speckled appearance. It is an object of the present invention to achieve an improvement in this condition. At the same time, an increase in the stability of the composition is to be achieved, especially in cold storage.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The present invention relates to an aqueous floor cleaning and maintenance agent which has an undiluted pH of between 5 and 9 and, in addition to surfactant and film-forming materials from the group of waxes, polymers and mixtures thereof, contains benzyl alcohol, 2-phenylethanol and 2-phenoxyethanol. and mixtures thereof. Preferably, the composition has a pH of between 6 and 8.

The novel compositions have an unusually high cleaning effect with respect to the neutral compositions of the prior art. Particularly noteworthy is the extremely uniform drying, in which virtually no film cracks are observed, so that a uniform optically homogeneous protective film is obtained. In addition, the new compositions are characterized by good shelf life; even at low temperatures, they do not undergo phase changes, even if they contain larger proportions of essential oils.

The surfactants present are present in the compositions as nonionic, anionic, amphoteric and cationic surfactants. Mixtures of surfactants from several of the above groups are preferably used. Anionic and nonionic surfactants and mixtures thereof are particularly preferred.

Non-ionic surfactants are primarily useful condensation products of 3-20 moles of ethylene oxide (EO) with primary C ^ Q - C ₂ q alcohols, for example, the coconut fatty alcohols, or fatty alcohols, tallow, oleyl alcohol, oxoalcohols or secondary alcohols with the string length. In addition, water-soluble nonionic surfactants as well as not completely water-soluble lower ethoxylated fatty alcohols-polyglycol ethers having from 3 to 7 ethylene glycol ether moieties per molecule may be of interest here, in particular when used together with non-ionic or anionic surfactants. . Correspondingly, the corresponding ethoxylated products of other long chain compounds are also suitable, for example fatty acids and fatty acid amides of 12 to 18 carbon atoms and alkyl phenols of 8 to 16 carbon atoms in the alkyl moiety. Propylene oxide (PO) can also be used in all these products instead of all ethylene oxide moieties. Other suitable nonionic surfactants are also the water-soluble condensation products of ethylene oxide and propylene glycol, alkylenediaminopolypropylene glycol, and alkylpolypropylene glycol of an alkyl group containing 20 to 250 ethylene glycol ether groups and 10 to 100 propylene glycol ether of propylene glycol ether. Suitable nonionic surfactants are also mono- and diethanolamides of fatty acids as well as long-chain aminooxides or sulfoxides, for example the compounds N-coconut alkyl-N, N-dimethylamine oxide, N-tallow alkyl-N, N-dihydroxyethylamine oxide and also water-soluble alkyl glycosides. a hydrophobic ^C 8 ~ 20 ~ ^C alkyl group is glycosidically linked to the most common glycosidic oligomer hydrophilic residue, e.g.

C 1-4 fatty alcohol + 1,6-glucose. Preferred nonionic surfactants in the compositions of the present invention are fatty alcohol ethoxylates or oxoalcohols with 5 to 15 moles of EO, fatty acid ethanolamides and alkyl polyglucosides.

Suitable anionic surfactants are synthetic anionic surfactants as well as soap. Soaps are the water-soluble salts of long-chain fatty acids, preferably of 12 to 18 carbon atoms, for example sodium coconut fatty acids and sodium tallow fatty acid.

Synthetic anionic surfactants are primarily of the sulfonate and sulfate type. As surfactants of the sulfonate type are, for alkylbenzenesulfonates with Cg- alkyl radical and olefin, ie, mixtures of alkene and hydroxyalkane sulfonates, and disulfonates, which, for example, can be obtained from C ^ 2 ^- ^ 18 of mono-unsaturated, end or inside by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acid hydrolysis of the sulfonated product. Also suitable are alkanesulfonates which are obtained by sul fochlorination or sulfooxidation of C 1 -C 6 alkanes and subsequent hydrolysis or neutralization, or by addition of a bisulfite to olefins, as well as esters of fatty alpha-sulfoacids, for example alpha-sulfonated methyl or ethyl ester of hydrogenated coconut fatty acids, palm kernel fatty acids, or tallow fat fatty acids.

Suitable sulfate type surfactants are monoesters of sulfuric acid with primary long-chain alcohols from natural or synthetic sources, i. fatty alcohol alcohols such as coconut oil alcohols, oleyl alcohol, lauryl-, myristyl, palmityl or stearyl alcohol, or 10 10 “^ 20 20 20 oxo alcohols or secondary alcohols having the indicated chain length. Also suitable are monoesters of sulfuric acid with 1 to 6 moles of ethylene oxide (EO), ethoxylated long-chain aliphatic primary alcohols, and optionally ethoxylated secondary alcohols. In addition, sulfated fatty acid alkanolamides, sulfated fatty acid monoglycerides, long chain sulfosuccinic acid esters as well as long chain ether carbonic acid salts, which can be obtained, for example, by converting long-chain alcohols, ethoxylated with 1 to 10 EO molecules, are suitable. with chloroacetic acid. The anionic surfactants are preferably used as alkali salts, especially sodium salts, but ammonium salts or salts of C 2 -C 6 alkanolamines can also be used. Within the scope of the present invention, alkanesulfonates, olefin sulfonates and fatty alcohol sulfates are particularly preferred as anionic surfactants.

It is preferred to use nonionic and anionic surfactants in the composition of the invention, which in most cases constitute the predominant or exclusive proportion of surfactants in the compositions. Particularly preferred will be mixtures of anionic or non-ionic surfactants, which often have a synergistic effect with one another during purification. However, amphoteric and cationic surfactants may also be used in place of or in addition to the surfactants mentioned, generally avoiding a combination of anionic and cationic surfactants.

Amphoteric surfactants are long chain compounds whose hydrophilic moiety consists of a cationically charged moiety (usually a tertiary amino- or quaternary ammonium group) and an anionically charged moiety (usually a carboxylate group or a sulfonate group). Examples of such surfactants are: N-coconut-alkyl-N, N-dimethylaminoacetate and N-dodecyl-N, N-dimethyl-3-aminopropanesulfonate.

Finally, cationic surfactants can also be mentioned which can also be used in the compositions according to the invention. Since cationic surfactants with most anionic surfactants form insoluble compounds, they are usually used only with nonionic and / or amphoteric surfactants. The most important cationic surfactants are quaternary ammonium compounds having 12 to 20 carbon atoms in the long alkyl or alkenyl radical and three short-chain alkyl or hydroxyalkyl radicals each having 2 to 3 nitrogen atoms. A typical example of a cationic surfactant is (coconut) alkyltrimethylammonium chloride.

The surfactant content of the formulation according to the invention is between 1 to 25% by weight, preferably 5 to 10% by weight.

In addition to the surfactants which are primarily responsible for the cleaning effect, the composition according to the invention contains preservatives which are in the form of waxes and / or film-forming polymers.

Suitable waxes can be natural as well as synthetic waxes from natural sources, but also entirely synthetic waxes. Examples are polyethylene waxes, oxidized polyethylene waxes, montan ester waxes, paraffin waxes, candelilla and carnauba waxes. Of these waxes, ester montan wax, polyethylene and carnauba wax are preferred in the composition of the invention. Especially preferred are blends of ester montan wax and polyethylene wax, as well as a mixture of ester montan wax and carnauba wax.

In the compositions, the waxes are present in an emulsified form. Since waxes which are not self-emulsifying are predominantly used, the composition according to the invention therefore contains conventional wax emulsifiers in amounts up to 10% by weight, preferably between 0.2 and 5% by weight. Examples of such emulsifiers are oleyl acetyl alcohol + 20 EO and sorbitol monooleate.

The film-forming polymer compounds used in the formulation are at least partially water-insoluble at neutral pH and have the lowest film-forming temperature in the range of about 0 to 70 ° C. These are preferably polymers which are produced from ethylene unsaturated monomers. Examples of such monomers are styrene, acrylic ester or aliphatic methacrylic ester, alcohols having 1 to 8 carbon atoms, acrylonitrile, vinyl acetate, acrylic acid and methacrylic acid. Particularly preferred are poly (meth) acrylates of the two or more of said monomers, which in this case may contain other monomers in insignificant amounts. Particularly preferred polymers contain from 1 to 30 parts by weight of monomers containing carbonic acid groups, from 30 to 70 parts by weight of monomers, homopolymers having a glass temperature of less than 20 ° C, preferably an ester of acrylic acid with C 1 -C 8 alcohols and / or methacrylic acid with C ₄ -C 8 alcohols, and 30 to 70 parts by weight of a monomer, a homopolymer with a glass temperature higher than room temperature, preferably a methacrylic acid ester with C 1 -C 4 alcohols or styrene. Addition of several different known types of polymeric compounds to the dispersion gives a mixture having a film-forming temperature in the range of 0 to 70 ° C. The film-forming temperatures indicated refer to plasticizer-free systems, i.e. polymers without other additives. Examples of such film-forming polymers are products offered as dispersions: Syntran 1501 (manufactured by Interpolymer), Primal 644 (manufactured by Rohm and Haas), Neocryl A 1049 (manufactured by ICI).

The content of preservatives (the sum of the contents of waxes and film-forming polymers) in the composition according to the invention is 1 to 30% by weight, preferably 4 to 10% by weight.

A third important component of the composition according to the invention is an aromatic alcohol selected from the group consisting of benzyl alcohol, 2-phenylethanol and 2-phenoxyethanol. The composition may contain these alcohols either individually or in admixture. Said alcohols in association with surfactants, wax preservatives and film-forming polymer appear to be responsible for the above-mentioned unexpected properties of the novel composition. Generally, small amounts of these alcohols are sufficient. Their proportion in the composition according to the invention is 0.05 to 11% by weight, preferably 1 to 5% by weight.

In addition to the known ingredients, the composition of the invention may contain other active and auxiliary substances, for example, cleaning salts, solvents, wetting agents, amines, colorants, preservatives and fragrance oils, as long as they do not affect the advantageous properties of the composition of the invention.

The cleaning salts which may be present in the compositions of the invention in amounts up to 10% by weight are water-soluble salts, in particular alkali salts, inorganic or organic acid salts, which are intended to improve the cleaning performance and the mutual compatibility of the components of the composition; in this case, eliminate the effects of water hardness. Examples are sodium citrate, sodium triphosphate, potassium phosphate, tetrasodium pyrophosphate, potassium carbonate and sodium bicarbonate.

The solvents may be added to the above aromatic alcohols in amounts up to 15% by weight and may be totally water-miscible solvents from the group of C 2 -C 4 alcohols and from the group of lower ether alcohols having at most 8 carbon atoms, such as ethanol, isopropanol and ethanediol.

Wetting agents and other flow agents serve to improve the wetting of the treated surface when applying dilute aqueous emulsion solutions. Typical examples of such wetting agents are styrene-maleic resins and clear polyacrylates. The proportion of these resins in the composition according to the invention may be up to 15% by weight.

The amines are used in the preparation according to the invention mainly in the presence of waxes as film-forming substances for their long-term emulsification. They are preferably alkanolamines, especially monoethanolamine, diethanolamine and particularly preferably triethanolamine. The amines may be present in the composition in amounts up to 3% by weight.

The following is a series of typical framework instructions for the composition of the composition of the invention. Aromatic alcohols herein are alcohols from the group of benzyl alcohol, 2-phenylethanol, 2-phenoxyethanol and mixtures thereof.

Neutral cleaning agent for basis artificial 1 materials surfactants 1 to 25 % weight Film-forming polymers 1 to 20 % weight Aromatic alcohols 0,05 to 11 % weight Cleaning salts 0 to 10 % weight humectants 0 to 15 % weight solvent 0 to 15 % weight Preservative 0 to 10 % weight Special excipients (eg scavengers, fragrances) 0 to 10 % weight Water to 100% weight. Neutral detergent me basis waxes surfactants 0.5 to 20 % weight waxes 1 to 20 % weight Aromatic alcohols 0,05do 11 % weight emulsifiers 0 to 10 % weight Cleaning salts 0 to 10 % weight humectants 0 to 15 % weight

amines 0 to 3 % weight. solvents 0 to 15 % weight. Preservative 0 to 19 % weight. Special aid 0 to 10 % weight. Water to 100 % weight. Neutral cleaning agent base of plastics and waxes surfactants 0,2 to 15 % weight. waxes 0,5 to 15 % weight. Film-forming polymers 0,5 to 15 % weight. Aromatic alcohols 0,05do 11 % weight. emulsifiers 0 to 10 % weight. Cleaning salts 0 to 10 % weight. humectants 0 to 15 % weight. amines 0 to 3 % weight. solvents 0 to 15 % weight. Preservatives 0 to 10 % weight. Special excipients 0 to 10 % weight. Water to 100 % weight. Neutral cleaning agent soap bases and vos metal Synthetic surfactants 0,2 to 15 % weight. waxes 0,2 to 15 % weight. Soap 0,2 to 20 % weight. Aromatic alcohols 0,05do 11 % weight. emulsifiers 0 to 10 % weight. Cleaning salts 0 to 10 % weight. humectants 0 to 15 % weight. amines 0 to 3 % weight. solvents 0 to 15 % weight. Preservatives 0 to 10 % weight. Special excipients 0 to 10 % weight. Water to 100 % weight.

The preparation of the composition is carried out in the simplest case by mixing all the components in any order. It is often expedient to start from wax or polymer dispersions prepared in water in advance and then to mix them with water and the other components. If necessary, adjust the pH to the neutral range (pH 5 to pH 9) with alkali or acids.

The composition is used in principle after dilution with water, the degree of dilution depending on the concentration of the composition. In the solution of the composition, diluted to a suitable concentration in use, the non-volatile components content should preferably be between 0.3% by weight. % to 0.6 wt. This can be achieved at a conventional concentration of the undiluted composition by dilution with water in a ratio of 1:10 to 1: 200, preferably 1:50 to 1: 100. The treatment of the surface with a solution of the concentration to be used is carried out in such a way that a soft object, such as a rag or sponge, is soaked with a solution which uniformly cleans the surface to be treated. This procedure removes dirt and any film residues that may have occurred from previous surface treatment by scooping the rag or sponge and then squeezing and rinsing the rag or sponge into a dilute detergent solution. A film of liquid remains on the surface to be cleaned, which evenly dries, leaving a thin protective film which dissolves again after the same treatment.

DETAILED DESCRIPTION OF THE INVENTION

Wax-based cleaning agent

The detergent composition is prepared by mixing the ingredients listed in Table 1 according to Examples 1-4. Unless otherwise indicated, the figures in this and the following table refer to percentages by weight of the finished compositions and are calculated on the pure active ingredient.

The cleaning ability of the compositions of the invention and their cold stability, labeled 2 to 4, are then intentionally compared to the composition 1 which is not the subject of the invention.

The cleaning effect was determined using a Gardner apparatus for assessing the cleaning and washing performance as described in the quality standards for detergents of the Industrial Association of Detergents (Seifen-Ole-Fette, Vachse, 108, pp. 526-528 (1982)). In this procedure, the white PVC foil is soiled with a soot and grease test dirt, and then, under standard conditions, mechanically washed with a sponge soaked with a dilute (1: 100) detergent solution. The cleaning ability is determined by photometric determination of the degree of remission.

To assess cold stability, samples were stored at 0-3 ° C for 12 weeks. During storage, samples were removed from the freezer every week and assessed visually after reaching room temperature. Visible signs of instability were flocculation, deposit, layer separation and viscosity change. The evaluation was carried out according to the following scale:

uniform, homogeneous sample weak layer separation or settling after 12 weeks weak layer separation or settling after 3 weeks medium layer separation or settling after 3 weeks strong layer separation or settling after 3 weeks very strong layer separation or settling after 3 weeks.

Table 1

Example 1 2 3 4 Monochloroacetic acid amide 0.2 - - - Sodium benzoate 0.1 - - - Potassium hydroxide 0.4 0.4 0.4 0.4 Sodium -C1-6 alkanesulfonate 0.8 0.8 0.8 0.8 01eyl-Ceryl alcohol + 10 EO 3.5 3.5 3.5 3.5 Fatty palm kernel acids 2.0 2.0 2.0 2.0 diethanolamine 0.1 0.1 0.1 0.1 Montan wax with temperature drip 83 ’C 3.6 3.6 3.6 3.6 Polyethylene dispersion, mol. weight 16 000-20 000 2.8 2.8 2.8 2.8

Table 1 - continued

Example 1 2 3 4 Four-potassium diphosphate 2.2 2.2 2.2 2.2 perfume 0.2 0.2 0.2 0.2 2-phenoxyethanol - 2.0 - - 2-phenylethane - - - 1.5 benzyl alcohol - - 2.0 - Water ad 100 ad 100 ad 100 ad 100 PH value 8.9 8.9 8.9 8.9 Shelf life at 0 - 3 ° C 2 0 0 0 Remission value by Gardner, 1% 37 43 43 42 They are evident from the test results preference : .i simple tensides 2 to 4 according to the invention compared to Prostrate 1 , which it's not

object of the present invention.

The polymer-based cleaning agent of Table 2 is intense up to 12. In all, the last component. Pros12 is intentionally mixed from the ingredients disclosed therein, perfume has always been added as a class according to the invention 6 to 8 and 10 when comparing the appearance of the scrubbing residue and the storage stability of the perfume when stored with non-subject compositions 5 and 9. invention.

The appearance of the remainder of the composition was determined by applying 100 ml of a 1% solution of the composition each to a black tile wall and allowing it to dry. After complete drying, he visually judged the appearance of the remainder of the composition using a scale of -5 to 0:

S3.

very thick veil, unpolishable thick veil, hardly polishable medium thick veil, hardly polishable veil formation, polishable

-1 slight veil, easy to polish without veil or gloss reduction.

Perfume stability in the compositions was tested when stored in a variable climate (12 hours at 0 ° C, 12 hours at 40 ° C). Here, too, a visual assessment was used according to the following scale:

1. Very good dispersing ability; the drops of perfume oil are evenly dispersed in the composition and are not further removed during the storage test.

2. Good dispersing ability; in the form of drops only a part of the perfume is separated even at the end of the storage test.

3. Medium Dispersing Capacity; some of the perfume drops are separated after four weeks storage.

4. Poor dispersing ability; all of the perfume was separated after four weeks of storage.

The results of the test clearly show the advantages of the compositions 6 to 8 according to the invention and 10 to 12 compared to the compositions 5 and 9 which are not the subject of the invention.

about about about about about about tn G (M) | 1 * A * * A * 1 A rM (M) and n G ABOUT r-i 00 o rh Ή about about about about about m G m G about rh 1 1 - A * * A 1 1 - * rh (Ml <n (Ml ABOUT G (Ml 00 G H ϊ-Η rh about g about about about ir> about m G ABOUT about 1 1 * A * * * * 1 1 * rh (M) <n (M) about about (Ml 00 o r-i r- < tH Ό about about about rh about about about ΙΓ) about LT) about about * and r and A A A 1 1 - CM C ABOUT (M) IN) (M) ABOUT about 00 1 cn • -P about about about ID m about m about (D r- 00 00 T 1 * * · * A 1 A 1 A (M Ή G G G G r- o rh rh ABOUT g about m about m about m about 00 CM. I 1 * A A A A 1 1 A A ol T "< ABOUT G ABOUT R-H r- o Γ < r-i about about about in n about (T) about about 00 about | 1 A A * A A A 1 1 A 0Ί r "< G ABOUT G R-1 (M- Q Ή r "< (T) ABOUT about about rh about m about ΙΓ) G in n 00 · * A * - * A A 1 1 - (N about about (WITH rh about ABOUT ABOUT (Μ- 1 WHAT

(Ml

table

T> honors rH -y Ή

ÍH CU

1 '>> C r- M Ί3 Ό Ό 0 ABOUT R-1 'Λ ω 3 X P E 0 P o Ό | -1 0 '55 H E Ή C C 0 0 + r-l E P-i 0

H H D-, Ο

3 0 O P C V} X Fri 0 • H CO> r-i Ό pi '>> P ϋ '> -> N' —l> (Λ C 3 O 3 >> Ό D rp P P Pi O Xi>, '3 O t / 1 t — 1 P i—! i-1 Ό >> υ> 1 cu • H -r-) c x o p o o E (D SP i Pi p> E 3> 0 3 i — t 3 'Ή Ό P 0 N i>,>, C CC D P C ND H -H p P U 0 0 rHrP 0 E 3 3 <O CQ U O CL M- / o, o.

G G r ~ 4 3 (/) E 0 i-1 R: 0 3 0 3 C 0 0 Ό p; C Ή 3 C x > (/) r-i P P 3 0 >> x >> ω 3 υ P Pi Ό CL > P CL >. (U H > N N 3 x t-1 3 > 3 > 'P 0 ✓O rH '-' P T3 0 (/> C C >> 0 3 x 0 0 N 3 C rp 3 rp <H C Ί3 T3 X I-1 '3 1 1 D 0 0 N x P (Ml <MJ CQ > x > CZ) GO

r r <yic5

Claims (7)

A neutral aqueous composition for cleaning and protecting hard surfaces, in particular flooring, characterized in that it has an undiluted pH of between 5 and 9 and contains, in addition to 1 to 25% by weight of surfactant and 1 to 30% by weight of film-forming materials of the group waxes, polymers and mixtures thereof, 0.05 to 11% by weight of an alcohol selected from the group of benzyl alcohol, 2-phenylethanol, 2-phenoxyethanol and mixtures thereof. Composition according to claim 1, characterized in that it has an undiluted pH of between 6 and 8. Composition according to either of Claims 1 and 2, characterized in that the surfactant content is 5 to 10% by weight. Composition according to one of Claims 1 to 3, characterized in that the content of film-forming materials is 4 to 10% by weight. Composition according to one of Claims 1 to 4, characterized in that the alcohol content is from 1 to 5% by weight of the group benzyl alcohol, 2-phenylethanol, 2-phenoxyethanol and mixtures thereof. Composition according to one of Claims 1 to 5, characterized in that it contains a surfactant selected from the group of anionic surfactants, non-ionic surfactants and mixtures thereof. Use of a composition according to any one of claims 1 to 6, after dilution with water in a ratio of 1:10 to 1: 200, preferably 1:50 to 1: 100, for cleaning and protecting hard surfaces, in particular floors.