Dispersion paint

Abstract

A dispersion paint containing, based on the total weight of the dispersion paint, a) 0 to 25 wt.% pigment, b) 20 to 50 wt.% filler, c) 1 to 25 wt.% polymer, d) 0.01 to 5 wt.% alkanolamine, e) 25 to 70 wt.% water, is presented and described, with a pH value of 10 to 12. A manufacturing process for the dispersion paint is also described. The dispersion paint is suitable for interior and / or exterior use.

Description

[0001] The present invention relates to an emulsion paint, a process for producing the emulsion paint, the use of the emulsion paint and the use of alkanolamine for stabilizing emulsion paints.

[0002] Various coating materials are available for coating substrates. In addition to silicate paints, there are also silicate dispersion paints and plastic dispersion paints.

[0003] Silicate paints are two-component paints that contain no organic components. The two main components of silicate paints are water glass and a water glass-resistant pigment. Silicate paints are usually mixed immediately before application by combining the two main components. Therefore, silicate paints require several steps, and their application is generally difficult and requires considerable experience.

[0004] In addition to the water glass and the water glass-resistant pigment, dispersion silicate paints according to DIN 18363 contain up to 5% by weight of organic components, based on the total amount of dispersion silicate paint. Synthetic resin dispersions are primarily used as organic components. Additional substances such as water repellents may also be included. The use of synthetic resin dispersions makes it possible to offer dispersion silicate paints as one-component systems.

[0005] Both silicate paints and dispersion silicate paints typically have a very strong alkaline pH value of up to 13, which requires more complex occupational safety precautions.

[0006] Plastic emulsion paints, also known as dispersion paints, typically contain relatively large amounts of organic chemical components, particularly synthetic resins such as polymers, especially in the form of synthetic resin dispersions. To ensure sufficient storage stability, emulsion paints typically require preservatives, particularly biocides such as isothiazolines. However, these can cause skin irritation, especially in allergy sufferers.

[0007] Various options have been proposed to produce plastic emulsion paints that do not require preservatives. These options are based primarily on water glass and alkyl siliconates.

[0008] EP 1 297 079 B1 describes an emulsion paint containing a polymer dispersion, pigment and / or filler, water glass, and water. This emulsion paint is characterized by the fact that it does not require preservatives. However, the presence of water glass also contains an inorganic binder, which can impair the properties of the emulsion paint, particularly its processability.

[0009] DE 1 031 910 B describes an alkyd resin emulsion paint containing titanium dioxide, fillers, an alkyd resin, and water. Sodium methylsiliconate is added to this paint immediately before application, giving the modified paint better washability than alkyd resin emulsion paints without sodium methylsiliconate. DE 1 031 910 B makes no statement about the pH value of the alkyd resin emulsion paint, its storage stability, or the presence of preservatives. Furthermore, an alkyd resin emulsion paint containing sodium methylsiliconate is not intended for storage according to DE 1 031 910 B.

[0010] DE 10 2014 013 455 A1 and DE 10 2016 002 221 A1 each describe an emulsion paint containing a polymer, pigment, filler, alkyl siliconate, and water. Both documents describe that the emulsion paint has an alkaline pH of a maximum of 12. Neither of the aforementioned documents describes that the emulsion paint can be stabilized by using an alkanolamine. A disadvantage of the emulsion paints containing alkyl siliconate described above is that yellowing can occur with some unsuitable polymers and titanium dioxide variants. Another disadvantage in the colored range can be the formation of white potassium carbonate, which can be formed by reaction with carbon dioxide. In addition, alkyl siliconates are relatively expensive.

[0011] Furthermore, the use of N-alkylalkanolamines and / or N,N-dialkylalkanolamines as synergists in combination with a biocide for stabilizing latex compositions is known from EP 1 362 897 A2. However, EP 1 362 897 A2 does not describe latex compositions containing N-alkylalkanolamines and / or N,N-dialkylalkanolamines without a biocide.

[0012] Based on the prior art explained above, it was an object of the invention to provide an emulsion paint which is substantially free of preservatives, has good storage stability and / or is easy to process.

[0013] All or some of these objects are achieved according to the invention by the emulsion paint according to point 1, the process according to point 12, the use according to point 14 and the use according to point 15.

[0014] Advantageous embodiments of the invention are specified in the dependent points and are explained in detail below.

[0015] The emulsion paint according to the invention has a pH value of 10 to 12 and contains, based on the total weight of the emulsion paint, the following components: a. 0 to 25 wt.% pigment, b. 20 to 50 wt.% filler, c. 1 to 25 wt.% polymer, d. 0.01 to 5 wt.% alkanolamine, e. 25 to 70 wt.% water.

[0016] Surprisingly, it has been found that by combining 0 to 25% by weight of pigment with 20 to 50% by weight of filler, 1 to 25% by weight of polymer, 0.01 to 5% by weight of alkanolamine, and 25 to 70% by weight of water in an emulsion paint having a pH of 10 to 12, an emulsion paint is obtained in which the components exhibit excellent compatibility with one another. As a result, surfaces coated with the emulsion paint according to the invention have a more homogeneous appearance. This is particularly evident in the fact that the surfaces coated with the emulsion paint according to the invention appear very uniform and have good leveling. As a result, the emulsion paint according to the invention is outstandingly easy to process and has a long open time. Furthermore, it has been found that the emulsion paint according to the invention does not exhibit any discoloration even after a storage period of several weeks, even without preservatives.Finally, it was found that the pH value of the emulsion paint according to the invention remained essentially constant over a storage period of several weeks.

[0017] Without wishing to be bound to any particular theory, the alkanolamine appears to stabilize the emulsion paint, particularly its pH, and also to ensure good compatibility between the components. Unlike preservative-free emulsion paints known in the prior art, the emulsion paint according to the invention dispenses with the inorganic components water glass or siliconate, which appears to improve compatibility between the components at the emulsion paint's pH.

[0018] The alkanolamine appears to act as a pH buffer in the emulsion paint according to the invention. As a result, the alkanolamine appears to improve the storage stability of the emulsion paint. This effect was unforeseeable given the use of alkanolamines as synergists for biocides, as described in EP 1 362 897 A2.

[0019] Dispersion paints within the meaning of the invention include, in particular, interior dispersion paints, exterior dispersion paints, silicone resin paints, and dispersion-based plasters and building varnishes, including interior and exterior plasters.

[0020] The alkanolamine is present in the emulsion paint according to the invention in an amount of 0.01 to 5 wt.%, based on the total weight of the emulsion paint. The emulsion paint according to the invention preferably contains 0.05 to 3 wt.%, in particular 0.1 to 1.5 wt.%, of alkanolamine, based in each case on the total weight of the emulsion paint. Emulsion paints with these contents exhibit good processability and good storage stability.

[0021] Alkanolamines according to the invention are in particular compounds having the formula R 1< R 2< N(CH 2 ) l (CR 3< R 4< ) m (CH 2 ) n OH, where R 1< and R 2< independently of one another are H, a hydrocarbon radical having 1 to 10 carbon atoms or HO(CH 2 ) 2 -, R 3< and R 4< independently of one another are H, OH or C 1 -C 5 alkyl, l is 0 or 1, m is an integer from 1 to 5, and n is an integer from 1 to 5. Preferably, in the formula R 1< R 2< N(CH 2 ) l (CR 3< R 4< ) m (CH 2 ) n OH R 1< is H or methyl and R 2< is H, C 1 -C 10 alkyl or HO(CH 2 ) 2 - and R 3< and R 4< independently of one another are H, OH or methyl, l is 0 or 1, m is an integer from 1 to 5, and n is 1.

[0022] More preferably, in the formula R 1< R 2< N(CH 2 ) l (CR 3< R 4< ) m (CH 2 ) n OH R 1< H or methyl and R 2< H, methyl or butyl, in particular n-butyl and R 3< and R 4< independently of one another are H, OH or methyl, l is 0 or 1, m is an integer from 1 to 5, and n is 1.

[0023] The alkanolamine may contain or consist of one or more alkanolamines. In particular, the alkanolamine may contain or consist of a single compound falling within the above-mentioned alkanolamine formula, or a mixture of two or more compounds falling within the above-mentioned alkanolamine formula.

[0024] According to one embodiment of the invention, the alkanolamine consists of a single compound which falls under the above-mentioned formula for the alkanolamine.

[0025] According to a further embodiment of the invention, the alkanolamine consists of a mixture of two or more compounds which fall under the above-mentioned formula for the alkanolamine.

[0026] Preferably, the alkanolamine is selected from the group consisting of 2-(n-butylamino)ethanol, 2-dimethylamino-2-methylpropanol, 2-aminoethanol, 2-amino-2-methylpropanol, N,N-dimethylglucamine, and mixtures thereof. More preferably, the alkanolamine contains 2-(n-butylamino)ethanol, 2-dimethylamino-2-methylpropanol, N,N-dimethylglucamine, or mixtures thereof.

[0027] According to a preferred embodiment, the alkanolamine is 2-(n-butylamino)ethanol. According to this embodiment, 2-(n-butylamino)ethanol is present in the emulsion paint in an amount of less than 1 wt.%, in particular in an amount of 0.5 to 0.99 wt.%, based on the total weight of the emulsion paint. It has been found that very good storage stability can be achieved with 2-(n-butylamino)ethanol.

[0028] It has also been shown that very good storage stability can be achieved with mixtures of N,N-dimethylglucamine with another alkanolamine.

[0029] According to a further preferred embodiment, the alkanolamine is a mixture of N,N-dimethylglucamine and 2-(n-butylamino)ethanol. According to this embodiment, 2-(n-butylamino)ethanol is preferably present in the emulsion paint in an amount of less than 1 wt.%, in particular in an amount of 0.1 to 0.99 wt.%, and N,N-dimethylglucamine in an amount of up to 4 wt.%, each based on the total weight of the emulsion paint.

[0030] According to a further preferred embodiment, the alkanolamine is a mixture of N,N-dimethylglucamine and 2-aminoethanol. According to this embodiment, 2-aminoethanol is preferably present in the emulsion paint in an amount of less than 1 wt.%, in particular in an amount of 0.1 to 0.99 wt.%, and N,N-dimethylglucamine in an amount of up to 4 wt.%, each based on the total weight of the emulsion paint.

[0031] According to a further preferred embodiment, the alkanolamine is a mixture of N,N-dimethylglucamine and 2-amino-2-methylpropanol. According to this embodiment, 2-amino-2-methylpropanol is preferably present in the emulsion paint in an amount of less than 1 wt.%, in particular in an amount of 0.1 to 0.99 wt.%, and N,N-dimethylglucamine in an amount of up to 4 wt.%, each based on the total weight of the emulsion paint.

[0032] If the alkanolamine of the emulsion paint is only a single compound, the alkanolamine is preferably free from 2-aminoethanol, diethanolamine, triethanolamine, 2-amino-1-propanol, 2-amino-2-methylpropanol or N,N-dimethylethanolamine, in particular from 2-amino-2-methylpropanol, 2-aminoethanol, diethanolamine or triethanolamine.

[0033] With the above-mentioned alkanolamines, in particular with 2-(n-butylamino)ethanol or with mixtures of N,N-dimethylglucamine with 2-(n-butylamino)ethanol, 2-aminoethanol or 2-amino-2-methylpropanol, dispersion paints with good storage stability can be obtained.

[0034] The alkanolamine preferably contains one nitrogen atom, in particular exactly one nitrogen atom. Further preferably, the alkanolamine contains one amino group, in particular exactly one amino group.

[0035] According to one embodiment of the invention, the emulsion paint according to the invention is free from alkoxylated tetraalkylalkylenediamine and / or alkoxylated (N,N')-tetraalkylalkylenediamine.

[0036] According to one embodiment of the invention, the emulsion paint according to the invention is free of water glass.

[0037] According to one embodiment of the invention, the emulsion paint according to the invention is free of wax.

[0038] The emulsion paint according to the invention preferably also contains pigment. However, when certain fillers such as calcium carbonate are used, pigment can be omitted. However, emulsion paints preferably contain pigment to ensure good hiding power and good wet abrasion resistance. However, omission of pigment may be advisable, particularly for economic reasons. The emulsion paint according to the invention can contain up to 25% by weight of pigment, based on the total weight of the emulsion paint. The presence of pigment increases the hiding power of the emulsion paint and / or provides a color impression. Various substances can be used as pigments.The pigment is preferably selected from the group consisting of titanium dioxide, iron oxide yellow, arylide (monoazo), bismuth vanadate, perinone, rutile tin zinc, quinacridone, diketopyrrolopyrrole, iron oxide red, phthalocyanine blue, dioxazine, cobalt blue, ultramarine blue, phthalocyanine green, chromium oxide green, cobalt green, carbon black, iron oxide black, pyrazoloquinazolone, naphthol AS monoazo pigment, and mixtures thereof. The pigment is preferably titanium dioxide. According to a preferred embodiment of the invention, the emulsion paint contains 1 to 25% by weight, preferably 1 to 20% by weight, more preferably 1 to 15% by weight, particularly preferably 5 to 15% by weight, of pigment, in each case based on the total weight of the emulsion paint.

[0039] According to one embodiment, inorganic pigments are preferably used. Examples of inorganic pigments are oxides such as titanium dioxide, iron oxides, e.g., PY 42, PR 101, P.Bk. 11, chromium oxide green, e.g., PG 17, mixed-phase pigments, e.g., cobalt oxide blue PB 28 and green PG 50, bismuth vanadate PY 184, rutile tin zinc PO 216, silicates, e.g., ultramarine blue PB 29, and carbon, e.g., carbon black P.Bk. 7.

[0040] According to a further embodiment, organic pigments are preferably used. Examples of organic pigments are azo pigments, e.g., Arylide Yellow (Monoazo) PY 74, polycyclic pigments, e.g., Quinacridone PR 122, Perinone PO 43, Pyrazoloquinazolone PO 67, Diketopyrrolopyrrole (DPP) PR 254, Dioxazine PV 23, and metal complex pigments, e.g., Copper Phthalocyanine Blue PB 15:3 and Green PG 7.

[0041] The names of the inorganic and organic pigments used in the examples correspond to the Generic Names of the Colour Index of the British Society of Dyers and Colourists.

[0042] According to a further embodiment, mixtures of inorganic and organic pigments are used.

[0043] By using the pigments listed, colored dispersion paints can be produced that essentially cover the entire color spectrum.

[0044] The emulsion paint according to the invention further contains filler. The emulsion paint according to the invention preferably contains filler in an amount of 20 to 50 wt.%, in particular 20 to 35 wt.% or 20 to 30 wt.%, in each case based on the total weight of the emulsion paint. The filler is preferably selected from the group consisting of dolomite, barium sulfate, feldspar, quartz, calcium carbonate, mica, kaolin, calcined kaolin, talc, diatomaceous earth, and mixtures thereof. More preferably, the filler is a mixture of at least calcium carbonate and calcined kaolin. The filler is particularly preferably a mixture of calcium carbonate, calcined kaolin, and diatomaceous earth. Such fillers result in emulsion paints with good processability.

[0045] Calcium carbonate can be used in various forms, for example in the form of chalk or calcite.

[0046] Practical experiments have shown that emulsion paints that produce particularly homogeneous coatings are obtained when the filler particles are small. Advantageously, the filler particles of the emulsion paint according to the invention have a size of less than 100 µm, in particular less than 80 µm, preferably from 0.1 to 50 µm, more preferably from 1 to 30 µm. Methods for determining particle size are known to those skilled in the art. For example, the particle size can be determined using a grindometer in accordance with DIN EN ISO 1524, in particular DIN EN ISO 1524:2013-06. The particle size of the fillers refers in particular to the maximum agglomerate size in the emulsion paint. Furthermore, the particle size, in particular the particle size distribution, can also be determined using transmission electron microscopy. The particle size is preferably determined using a grindometer according to DIN EN ISO 1524:2013-06

[0047] According to the invention, the pH value of the emulsion paint is from 10 to 12, preferably from 10.5 to 11.5. It has been found that emulsion paints with the specified pH values ​​exhibit little or no changes even when stored for several weeks, even when essentially free of preservatives. "Essentially free of preservatives" means that the emulsion paint contains preservatives at most in trace amounts, in particular in an amount of less than 2 ppm. Even more preferably, the pH value of the emulsion paint is from 10.5 to 11.4. Emulsion paints according to the invention with such pH values ​​have the additional advantage of being able to be used without special precautions regarding occupational safety.

[0048] The pH value can be adjusted more precisely, for example, by adding alkaline substances, also called alkali adjusters. Examples of alkaline substances are alkali metal hydroxides such as lithium, sodium, and / or potassium hydroxide; alkaline earth metal hydroxides such as magnesium, calcium, and / or barium hydroxide; ammonium hydroxide; xonotlite (6CaO·6SiO 2 ·H 2 O); and / or ettringite (Ca 6 [Al(OH) 6 ] 2 (SO 4 x 26 H 2 O)). The alkali adjuster is preferably an alkali metal hydroxide, in particular potassium hydroxide.

[0049] The xonotlite preferably has a monoclinic crystal system (xonotlite monoclinic). It has been shown that xonotlite and / or ettringite can be used particularly advantageously in combination with the alkanolamine contained in the emulsion paint according to the invention. In particular, emulsion paints containing xonotlite and / or ettringite as alkali adjusters in addition to alkanolamine exhibit increased pH stability.

[0050] According to one embodiment of the invention, the emulsion paint according to the invention contains, in addition to alkanolamine, at least one alkaline activator in an amount of 0.005 to 3 wt.%, in particular 0.01 to 1 wt.%, based on the total composition of the emulsion paint. In particular, the emulsion paint according to the invention can contain 0.005 to 3 wt.%, in particular 0.01 to 1 wt.%, of potassium hydroxide, xonotlite, and / or ettringite, based on the total composition of the emulsion paint.

[0051] According to one embodiment of the invention, the pH value of the emulsion paint according to the invention remains essentially constant in a sealed container at 22°C over a period of at least 4 weeks, preferably at least 8 weeks, more preferably at least 12 weeks, even more preferably at least 16 weeks, and even more preferably at least 20 weeks. "Essentially constant" means that the measured pH value does not change within the usual measurement tolerance range for pH measurements.

[0052] According to the invention, the emulsion paint contains 1 to 25 wt.% polymer, based on the total weight of the emulsion paint. Preferably, the emulsion paint contains 1 to 20 wt.%, more preferably 5 to 15 wt.% polymer, based in each case on the total weight of the emulsion paint. The information regarding the polymer content in the emulsion paint refers to the polymer as a solids content. However, the polymer is preferably added in the form of a dispersion, especially an aqueous dispersion, during the production of an emulsion paint.

[0053] These polymer dispersions, especially the aqueous polymer dispersions, advantageously contain 40 to 70 wt. %, preferably 45 to 60 wt. %, more preferably 45 to 55 wt. %, of polymer. If the polymer is added as an aqueous polymer dispersion, the water in the polymer dispersion is counted as part of the total water content of the emulsion paint. Emulsion paints containing polymer in the stated amounts have demonstrated good processing properties.

[0054] Various polymers are suitable as the polymer of the emulsion paint. The polymer of the emulsion paint according to the invention preferably contains at least one polymer and / or copolymer based on at least one monomer selected from the group consisting of acrylic acid, acrylic acid derivatives, acrylic acid esters, methacrylic acid, methacrylic acid derivatives, methacrylic acid esters, styrene, styrene derivatives, N-vinylpyrrolidone, acrylonitrile, vinyl acetate, vinyl propionate, ethylenically unsaturated carboxylic acids, ethylenically unsaturated carboxylic acid esters, ethylenically unsaturated carboxylic acid anhydrides, ethylenically unsaturated carboxylic acid amides, and vinyl carboxylic acid esters. More preferably, the polymer of the emulsion paint contains at least one polymer based on acrylic acid derivatives and / or styrene, particularly preferably a styrene-acrylate copolymer. Preferred acrylic acid derivatives are acrylic acid esters. Preferred methacrylic acid derivatives are methacrylic acid esters.When using acrylic acid esters and / or methacrylic acid esters, it is preferred that the alcohol residue contains 1 to 12 carbon atoms. The alcohol residue can also be branched or unbranched. According to a preferred embodiment, the polymer of the emulsion paint consists of at least one of the aforementioned polymers and / or copolymers.

[0055] The emulsion paint according to the invention can also contain additives. The emulsion paint preferably contains 0.01 to 5 wt. %, more preferably 0.05 to 3 wt. %, more preferably 0.1 to 2 wt. %, based in each case on the total weight of the emulsion paint, of additives. Examples of suitable additives include dispersants, wetting agents, thickeners, defoamers, and / or hydrophobicizing agents. Examples of thickeners are alcohol alkoxylates, ethylene oxide-propylene oxide copolymers, maleic anhydride-diisobutylene copolymers, polyacrylic and polymethacrylic acid and their salts, methylcelluloses, carboxymethylcelluloses, hydroxymethylcelluloses, methylhydroxyethylcellulose, polyurethanes, alkali metal phosphates, xanthan gum, and salts of modified phosphoric acids, as well as mixtures thereof.

[0056] Examples of defoamers are polyglycols, triglycerides, polysiloxane-polyether copolymers and silicone oils.

[0057] Examples of hydrophobic agents include oligomeric and polymeric siloxanes and silicone resins.

[0058] According to a preferred embodiment, the emulsion paint according to the invention is essentially free of preservatives. "Essentially free of preservatives" means that the emulsion paint contains preservatives at most in traces, in particular in an amount of less than 2 ppm. The emulsion paint according to the invention is preferably free of biocides, in particular isothiazolines. Examples of isothiazolines are methylisothiazolinone, chloromethylisothiazolinone, benzisothiazolinone, octylisothiazolinone, dichlorooctylisothiazolinone, and butylbenzisothiazolinone. The emulsion paint is preferably free of [([(2-dihydro-5-methyl-3(2H)-oxazolyl)-1-methylethoxy]methoxy)methoxy] methanol.

[0059] The invention further provides a process for producing the emulsion paint according to the invention, comprising the steps a. Providing a composition containing, based in each case on the total weight of the emulsion paint, i. 0 to 25 wt.% pigment, ii. 20 to 50 wt.% filler, iii. 1 to 25 wt.% polymer, iv. 0.01 to 5 wt.% alkanolamine, v. 25 to 70 wt.% water, b. Dispersing the components mentioned in a., c. Adjusting the pH to a value of 10 to 12.

[0060] The steps listed can be carried out in any order depending on the subject.

[0061] What has been said about the alkanolamine in connection with the emulsion paint according to the invention also applies equally to the alkanolamine of the process according to the invention.

[0062] What has been said in connection with the emulsion paint according to the invention regarding the amount of pigment and the pigment also applies equally to the amount of pigment and the pigment of the process according to the invention.

[0063] What has been said in connection with the emulsion paint according to the invention regarding filler also applies equally to filler in the process according to the invention.

[0064] What has been said in connection with the emulsion paint according to the invention regarding the pH value and the alkaline substance also applies equally to the pH value and the alkaline substance of the process according to the invention.

[0065] What has been said in connection with the emulsion paint according to the invention regarding the amount of polymer and the polymer also applies equally to the amount of polymer and the polymer of the process according to the invention.

[0066] What has been said about the additives in connection with the emulsion paint according to the invention also applies equally to the additives of the process according to the invention.

[0067] The emulsion paint according to the invention is suitable for various applications. It is particularly suitable for indoor and / or outdoor use.

[0068] The invention also relates to the use of alkanolamines, in particular 2-(n-butylamino)ethanol or mixtures of N,N-dimethylglucamine with 2-(n-butylamino)ethanol, 2-aminoethanol, or 2-amino-2-methylpropanol, to increase the storage stability of emulsion paints. Preferably, in the inventive use, the alkanolamine is not used to enhance the effect of a biocide. The emulsion paints are preferably free of preservatives, in particular biocides, for example, isothiazolines.

[0069] The invention is explained in more detail below by means of examples which, however, serve only for illustrative purposes and are not limiting. EXAMPLES

[0070] A dispersion paint with the following formulation shown in Table 1 was prepared by mixing the components listed in Table 1, doses in % by weight. Table 1 ingredient Formulation A Titanium dioxide 13 Styrene acrylate (50 wt.% in water) 15 2-(n-butylamino)ethanol 0,9 Styrene-acrylate as polymer filler 3 Diatomaceous earth 3 Calcium carbonate 19 kaolin 8 Alkaline compound 0,2 Defoamers 0,4 Thickener 0,5 wetting agents 1 Water 36 PH value 11,3

[0071] Formulation A demonstrated a storage stability of more than 6 months without discoloration and was easy to process. In particular, the formulation demonstrated good processability and produced surfaces with a homogeneous overall appearance after application. The pH value for Formulation A was 10.7 after 6 months. Even when Formulation A was stored in an oven at 50°C, the pH value remained at 10.7 after 35 days.

[0072] The objects described in the following points represent further embodiments of the invention: 1. Emulsion paint containing, based on the total weight of the emulsion paint, a. 0 to 25 wt.% pigment, b. 20 to 50 wt.% filler, c. 1 to 25 wt.% polymer, d. 0.01 to 5 wt.% alkanolamine, e. 25 to 70 wt.% water, wherein the pH of the emulsion paint is from 10 to 12. 2. Emulsion paint according to item 1, characterized in thatit contains 0.05 to 3 wt.%, in particular 0.1 to 1.5 wt.%, based on the total weight of the emulsion paint, of alkanolamine. 3. Emulsion paint according to item 1 or 2, characterized in thatthe alkanolamine is a compound of the formula R 1< R 2< N(CH 2 ) l (CR 3< R 4< ) m (CH 2 ) n OH, where R 1< and R 2< are independently H, a hydrocarbon radical having 1 to 10 carbon atoms or HO(CH 2 ) 2 -, R 3< and R 4< are independently H, OH or C 1 -C 5 alkyl, 10 or 1, m is an integer from 1 to 5, and n is an integer from 1 to 5, preferably where R 1< is H or methyl and R 2< is H, C 1 -C 10 alkyl or HO(CH 2 ) 2 -, R 3< and R 4< are independently H, OH or methyl, 10 or 1, m is an integer from 1 to 5, and n is 1, further preferably where R 1< H or methyl and R 2< is H, methyl or butyl, in particular n-butyl, R 3< and R 4< independently of one another are H, OH or methyl, l is 0 or 1, m is an integer from 1 to 5, and n is 1. 4. Dispersion paint according to one of the preceding points, characterized in thatthe emulsion paint contains 1 to 25 wt.%, in particular 1 to 20 wt.% or 1 to 15 wt.% or 5 to 15 wt.% pigment, each based on the total weight of the emulsion paint, in particular wherein the pigment is selected from the group consisting of titanium dioxide, iron oxide yellow, arylide (monoazo), bismuth vanadate, perinone, rutile-tin-zinc, quinacridone, diketopyrrolo-pyrrole, iron oxide red, phthalocyanine blue, dioxazine, cobalt blue, ultramarine blue, phthalocyanine green, chromium oxide green, cobalt green, carbon black, iron oxide black, pyrazoloquinazolone, naphthol-AS monoazo pigment, and mixtures thereof, in particular wherein the pigment is titanium dioxide. 5. Emulsion paint according to one of the preceding points, characterized in that the filler is selected from the group consisting of dolomite, barium sulfate, feldspar, quartz, calcium carbonate, mica, kaolin, calcined kaolin, talc, diatomaceous earth, and mixtures thereof. 6. Dispersion paint according to any of the preceding points, characterized in thatthe filler is a mixture of at least calcium carbonate and calcined kaolin. 7. Dispersion paint according to any of the preceding points, characterized in that the pH value of the emulsion paint is between 10.5 and 11.5, in particular between 10.5 and 11.4. 8. Emulsion paint according to one of the preceding points, characterized in that the pH value of the emulsion paint in the sealed container at 22°C remains essentially constant for a period of at least 4 weeks, in particular at least 8 weeks, or at least 12 weeks, or at least 16 weeks, or at least 20 weeks. 9. Emulsion paint according to any of the preceding points, characterized in that the emulsion paint contains 1 to 20 wt.%, in particular 5 to 15 wt.%, of polymer, based in each case on the total weight of the emulsion paint. 10. Emulsion paint according to one of the preceding points, characterized in thatthe polymer contains at least one polymer and / or copolymer based on at least one monomer selected from the group consisting of acrylic acid, acrylic acid derivatives, acrylic acid esters, methacrylic acid, methacrylic acid derivatives, methacrylic acid esters, styrene, styrene derivatives, N-vinylpyrrolidone, acrylonitrile, vinyl acetate, vinyl propionate, ethylenically unsaturated carboxylic acids, ethylenically unsaturated carboxylic acid esters, ethylenically unsaturated carboxylic acid anhydrides, ethylenically unsaturated carboxylic acid amides, and vinyl carboxylic acid esters. 11. Dispersion paint according to one of the preceding points, characterized in thatthe emulsion paint contains 0.01 to 5 wt.%, in particular 0.05 to 3 wt.% or 0.1 to 2 wt.%, in each case based on the total weight of the emulsion paint, of additives, in particular dispersants, wetting agents, thickeners, defoamers and / or hydrophobicizing agents. 12. A process for producing an emulsion paint according to any one of items 1 to 11, comprising a. providing a composition containing, in each case based on the total weight of the composition, i. 0 to 25 wt.% pigment, ii. 20 to 50 wt.% filler, iii. 1 to 25 wt.% polymer, iv. 0.01 to 5 wt.% alkanolamine, v. 25 to 70 wt.% water, b. dispersing the components mentioned in a., c. adjusting the pH to a value of 10 to 12. 13. Process according to item 12, characterized in thatthe composition contains 0.05 to 3 wt.%, in particular 0.1 to 1.5 wt.%, in each case based on the total weight of the composition, alkanolamine and / or that the alkanolamine is defined according to point 3 and / or that the emulsion paint contains 1 to 25 wt.%, in particular 1 to 20 wt.% or 1 to 15 wt.% or 5 to 15 wt.% pigment, in each case based on the total weight of the emulsion paint, wherein in particular the pigment is selected from the group consisting of titanium dioxide, iron oxide yellow, arylide (monoazo), bismuth vanadate, perinone, rutile tin zinc, quinacridone, diketopyrrolopyrrole, iron oxide red, phthalocyanine blue, dioxazine, cobalt blue, ultramarine blue, phthalocyanine green, chromium oxide green, cobalt green, carbon black, iron oxide black, pyrazoloquinazolone, Naphtol-AS monoazo pigment and mixtures thereof and / or that the filler is characterized by at least one feature of points 5 and 6 and / or that the pH value of the emulsion paint is from 10.5 to 11.5,in particular from 10.5 to 11.4, and / or that the pH of the emulsion paint in the sealed container at 22°C remains substantially constant over a period of at least 4 weeks, in particular at least 8 weeks or at least 12 weeks or at least 16 weeks or at least 20 weeks, and / or that the composition contains 1 to 20% by weight, in particular 5 to 15% by weight, of polymer, in each case based on the total weight of the composition and / or that the polymer is at least one polymer and / or copolymer based on at least one monomer selected from the group consisting of acrylic acid, acrylic acid derivatives, acrylic acid esters, methacrylic acid, methacrylic acid derivatives, methacrylic acid esters, styrene, styrene derivatives, N-vinylpyrrolidone, acrylonitrile, vinyl acetate, vinyl propionate, ethylenically unsaturated carboxylic acids, ethylenically unsaturated carboxylic acid esters, ethylenically unsaturated carboxylic acid anhydrides,ethylenically unsaturated carboxylic acid amides and vinyl carboxylic acid esters, and / or that the composition contains 0.01 to 5 wt.%, in particular 0.05 to 3 wt.% or 0.1 to 2 wt.%, in each case based on the total weight of the emulsion paint, of additives, in particular dispersants, wetting agents, thickeners, defoamers, and / or hydrophobicizing agents. 14. Use of an emulsion paint according to any one of items 1 to 11 for interior and / or exterior use. 15. Use of alkanolamine, in particular 2-(n-butylamino)ethanol or mixtures of N,N-dimethylglucamine with 2-(n-butylamino)ethanol, 2-aminoethanol, or 2-amino-2-methylpropanol, to increase the storage stability of emulsion paints.

Claims

1. Emulsion paint containing, based on the total weight of the emulsion paint, a. 0 to 25 wt.% pigment, b. 20 to 50 wt.% filler, c. 1 to 25 wt.% polymer, d. 0.01 to 5 wt.% alkanolamine, e. 25 to 70 wt.% water, wherein the pH of the emulsion paint is from 10 to 12.

2. Dispersion paint according to claim 1, characterized in that it contains 0.05 to 3% by weight, in particular 0.1 to 1.5% by weight, in each case based on the total weight of the emulsion paint, of alkanolamine.

3. Dispersion paint according to claim 1 or 2, characterized in that the alkanolamine is a compound of the formula R 1 R 2 N(CH2) l (CR 3 R 4 ) m (CH2) n OH, where R 1 and R 2 independently of one another are H, a hydrocarbon radical having 1 to 10 carbon atoms or HO(CH2)2-, R 3 and R 4independently of one another are H, OH or C1-C5-alkyl, 10 or 1, m is an integer from 1 to 5, and n is an integer from 1 to 5, preferably where R 1 H or methyl and R 2 H, C1-C 10 -alkyl or HO(CH2)2-, R 3 and R 4 independently of one another are H, OH or methyl, 10 or 1, m is an integer from 1 to 5, and n is 1, more preferably where R 1 H or methyl and R 2 H, methyl or butyl, especially n-butyl, R 3 and R 4 independently of one another are H, OH or methyl, 10 or 1, m is an integer from 1 to 5, and n is 1.

4. Dispersion paint according to one of the preceding claims, characterized in thatthe emulsion paint contains 1 to 25% by weight, in particular 1 to 20% by weight or 1 to 15% by weight or 5 to 15% by weight of pigment, in each case based on the total weight of the emulsion paint, in particular wherein the pigment is selected from the group consisting of titanium dioxide, iron oxide yellow, arylide (monoazo), bismuth vanadate, perinone, rutile-tin-zinc, quinacridone, diketopyrrolo-pyrrole, iron oxide red, phthalocyanine blue, dioxazine, cobalt blue, ultramarine blue, phthalocyanine green, chromium oxide green, cobalt green, carbon black, iron oxide black, pyrazolo-quinazolone, naphtol-AS monoazo pigment and mixtures thereof, in particular that the pigment is titanium dioxide.

5. Dispersion paint according to one of the preceding claims, characterized in that the filler is selected from the group consisting of dolomite, barium sulfate, feldspar, quartz, calcium carbonate, mica, kaolin, calcined kaolin, talc, diatomaceous earth and mixtures thereof.

6. Dispersion paint according to one of the preceding claims, characterized in that the filler is a mixture of at least calcium carbonate and calcined kaolin.

7. Dispersion paint according to one of the preceding claims, characterized in that the pH value of the emulsion paint is from 10.5 to 11.5, in particular from 10.5 to 11.

4.

8. Dispersion paint according to one of the preceding claims, characterized in that the pH value of the emulsion paint in the sealed container at 22°C remains essentially constant over a period of at least 4 weeks, in particular at least 8 weeks or at least 12 weeks or at least 16 weeks or at least 20 weeks.

9. Dispersion paint according to one of the preceding claims, characterized in that the emulsion paint contains 1 to 20 wt.%, in particular 5 to 15 wt.%, of polymer, in each case based on the total weight of the emulsion paint.

10. Dispersion paint according to one of the preceding claims, characterized in thatthe polymer contains at least one polymer and / or copolymer based on at least one monomer selected from the group consisting of acrylic acid, acrylic acid derivatives, acrylic acid esters, methacrylic acid, methacrylic acid derivatives, methacrylic acid esters, styrene, styrene derivatives, N-vinylpyrrolidone, acrylonitrile, vinyl acetate, vinyl propionate, ethylenically unsaturated carboxylic acids, ethylenically unsaturated carboxylic acid esters, ethylenically unsaturated carboxylic acid anhydrides, ethylenically unsaturated carboxylic acid amides and carboxylic acid vinyl esters.

11. Dispersion paint according to one of the preceding claims, characterized in that the emulsion paint contains 0.01 to 5 wt.%, in particular 0.05 to 3 wt.% or 0.1 to 2 wt.%, in each case based on the total weight of the emulsion paint, additives, in particular dispersing agents, wetting agents, thickeners, defoamers and / or hydrophobic agents.

12. A process for producing an emulsion paint according to any one of claims 1 to 11, comprising: a. providing a composition containing, based in each case on the total weight of the composition, i. 0 to 25% by weight of pigment, ii. 20 to 50% by weight of filler, iii. 1 to 25% by weight of polymer, iv. 0.01 to 5% by weight of alkanolamine, v. 25 to 70% by weight of water, b. dispersing the components mentioned in a., c. adjusting the pH to a value of 10 to 12.

13. Method according to claim 12, characterized in thatthe composition contains 0.05 to 3 wt.%, in particular 0.1 to 1.5 wt.%, in each case based on the total weight of the composition, alkanolamine and / or that the alkanolamine is defined according to claim 3 and / or that the emulsion paint contains 1 to 25 wt.%, in particular 1 to 20 wt.% or 1 to 15 wt.% or 5 to 15 wt.% pigment, in each case based on the total weight of the emulsion paint, wherein in particular the pigment is selected from the group consisting of titanium dioxide, iron oxide yellow, arylide (monoazo), bismuth vanadate, perinone, rutile tin zinc, quinacridone, diketopyrrolopyrrole, iron oxide red, phthalocyanine blue, dioxazine, cobalt blue, ultramarine blue, phthalocyanine green, chromium oxide green, cobalt green, carbon black, iron oxide black, pyrazoloquinazolone, Naphtol-AS monoazo pigment and mixtures thereof and / or that the filler is characterized by at least one feature of claims 5 and 6 and / or that the pH value of the emulsion paint is from 10.5 to 11.5,in particular from 10.5 to 11.4, and / or that the pH of the emulsion paint in the sealed container at 22°C remains substantially constant over a period of at least 4 weeks, in particular at least 8 weeks or at least 12 weeks or at least 16 weeks or at least 20 weeks, and / or that the composition contains 1 to 20% by weight, in particular 5 to 15% by weight, of polymer, in each case based on the total weight of the composition and / or that the polymer is at least one polymer and / or copolymer based on at least one monomer selected from the group consisting of acrylic acid, acrylic acid derivatives, acrylic acid esters, methacrylic acid, methacrylic acid derivatives, methacrylic acid esters, styrene, styrene derivatives, N-vinylpyrrolidone, acrylonitrile, vinyl acetate, vinyl propionate, ethylenically unsaturated carboxylic acids, ethylenically unsaturated carboxylic acid esters, ethylenically unsaturated carboxylic acid anhydrides,ethylenically unsaturated carboxylic acid amides and carboxylic acid vinyl esters, and / or that the composition contains 0.01 to 5 wt.%, in particular 0.05 to 3 wt.% or 0.1 to 2 wt.%, in each case based on the total weight of the emulsion paint, additives, in particular dispersing, wetting, thickening agents, defoamers and / or hydrophobizing agents.

14. Use of an emulsion paint according to one of claims 1 to 11 for indoor and / or outdoor use.

15. Use of alkanolamine, in particular 2-(n-butylamino)ethanol or mixtures of N,N-dimethylglucamine with 2-(n-butylamino)ethanol, 2-aminoethanol or 2-amino-2-methylpropanol, to increase the storage stability of emulsion paints.