Coating composition of isocyanate and basic metal compound

Abstract

The present invention relates to a composition comprising at least one polyisocyanate, particles of at least one basic metal compound, and at least one first additive which is a chelating agent comprising at least two functional groups capable of binding to cations of said metal. Further provided are kits comprising said composition and a second composition containing water, the use of the composition for making coatings, and processes related thereto.

Description

[Technical field]

[0001] The present invention relates to a composition comprising at least one polyisocyanate, particles of at least one basic metal compound, and at least one first additive which is a chelating agent comprising at least two functional groups capable of binding to cations of said metal. Further provided are kits comprising said composition and a second composition containing water, the use of the composition for making coatings, and processes related thereto. [Background technology]

[0002] Coatings are a rapidly growing and important application and provide added value. They often have decorative and protective functions. Coating compositions for construction purposes, in particular for applications in flooring and waterproofing, are mainly based on epoxy resins or polyurethane resins (polyurethane polymers).

[0003] Epoxy resin-based coating compositions, although providing aesthetically pleasing and glossy surfaces, suffer from certain drawbacks such as an undesirable whitening effect especially at lower temperatures, a temperature dependence of gloss strength that may decrease in low temperature environments, and the need for hazardous chemicals (i.e., epoxides and amines).

[0004] Polyurethanes (PU) consist of polymers made up of chains of organic (monomer) units linked by carbamate (urethane) bonds resulting from reactions between hydroxyl and isocyanate groups. The polymer chains may branch depending on the monomers used and / or further (side) reactions such as allophanate and biuret reactions. Industrially, polyurethane polymers are usually formed by the reaction of isocyanates with polyols. Both isocyanates and polyols contain, on average, two or more functional groups each per molecule. PUs can be produced in many different forms, from very low density foams to high performance composites, and therefore can be used in a multitude of applications. Examples of applications include flexible high resilience seating foams, rigid foam insulation panels, electrical potting compounds, high performance adhesives, surface coatings, packaging materials, surface sealants, and synthetic fibers. PU coatings are particularly valued for their durability, abrasion resistance, aesthetics, and formulation flexibility. In addition, like PU adhesives, PU coatings can be supplied in a multitude of formats to meet the process requirements of almost any operation.

[0005] For the preparation of polyurethane-type polymers, in principle two different systems can be distinguished.

[0006] For construction purposes, especially in flooring and waterproofing applications, polyurethane-based coating compositions often further contain polyureas formed from isocyanates and amines. The amines can be formed in situ by reaction of water with isocyanates and / or optionally blocked amines (latent hardeners). Polyureas increase the bond to the coated surfaces, especially cement and concrete surfaces. Polyureas consist of polymers made up of chains of organic (monomer) units linked by urea bonds resulting from the reaction between amine and isocyanate groups.

[0007] In so-called one-component systems (1K systems), isocyanate prepolymers (urethane prepolymers) or solutions thereof are crosslinked and cured by the moisture present in the surrounding air.

[0008] An isocyanate prepolymer, or polyurethane prepolymer, is one in which all of the polyol hydroxyl end groups have been reacted with isocyanate groups, leaving isocyanate functionality at the ends in place of hydroxyl groups.

[0009] Some formulations use so-called latent hardeners, i.e. hydrolysis-sensitive components that liberate polyols and / or amines when reacted with water. Common examples of latent hardeners are imines or oxazolidines; however, these liberate leaving groups that either evaporate, releasing volatile organic compounds (VOCs) and strong odors (e.g., amines often have unpleasant odors), or remain in the system and act as plasticizers.

[0010] In so-called two-component systems (2K systems), the isocyanate component cures by reacting with an amine and / or polyol component.

[0011] However, the polymeric coatings obtained according to the above methods tend to foam or trap air bubbles during the polymerization process, especially when applied in thicker layers, for example layers with a thickness of more than 1 mm. The cause of foaming is carbon dioxide, which is inevitably formed during the reaction of isocyanate with water. Water is added as a curing agent or is often contained in the starting materials, i.e. the polyol component, and in materials added to the starting materials, such as pigments and fillers.

[0012] When a urethane-type polymer is used for a coating, adhesive or sealant, the polymer is required to be non-foamable, i.e., not take the form of a foam after its curing process is completed. Such non-foamable urethane-type polymers can be prepared by adding a basic material to the isocyanate reaction mixture. The basic material captures carbon dioxide and acts as a carbon dioxide scavenger.

[0013] Two-component polyurethane coating systems, sometimes called two-package coatings or 2K polyurethane systems, are perhaps the most commonly known of all polyurethane coating systems. "Two-component" refers to a process or system in which two resin packages (often called part A and part B) are mixed immediately before the application of the coating. One package (often called "part A") contains a resin with functional groups (e.g., hydroxy or amino groups) that are reactive toward isocyanate groups, and the other package (often called "part B") contains an isocyanate that can react with the functional groups in part A. The key advantages of two-component coating systems are the much longer storage stability or shelf life of the isocyanate-containing component (part B) compared to isocyanates alone or isocyanate prepolymers in 1K systems, the rapid curing reaction when the two resins are mixed, and the simple mixing process before application (WO 2019 / 137859 proposes such a 2K system).

[0014] Two-component polyurethanes using amines that cure slowly enough, and water and CO 2Three-component polyurethanes using scavengers have been known for some time. However, three-component packages are prone to errors in practical use and are therefore not popular on the market: for example, the need to add additional components to a two-component system further increases packaging costs and further complicates the coating process. Polyurethane resins require a precisely balanced mix ratio and thorough mixing for good results, so a high degree of component metering accuracy is required. The amines used in two-component polyurea compositions are relatively expensive and often have an unpleasant odor and are hazardous.

[0015] Thus, one-component systems (1K systems) using prepolymers of isocyanates and polyols and with improved shelf life are still desirable for their simplicity, but two-component systems (2K systems) without added amines are also desirable. The latter require in situ generation of the amine from isocyanate and water, which reduces the CO 2 CO 2 While some of the gas is able to escape the coating composition, a certain amount remains trapped therein as a gas, forming bubbles or pockets that cause undesirable foaming of the coating.

[0016] Such captured CO 2 The use of metal oxides and hydroxides has been proposed to chemically trap the hydroxyl groups and prevent the formation of bubbles or pockets to suppress foaming (DE 1271978, EP 0161479 and WO 2019 / 137859).

[0017] Nevertheless, for example, dispersions of calcium oxide or calcium hydroxide in water and polyol are difficult to stabilize in order to obtain storage stable compositions with sufficient shelf life, and the range of suitable polyols, fillers, and pigments is limited due to the highly alkaline environment in the composition or dispersion.

[0018] To avoid such unstable dispersions with relatively short shelf lives, it would be desirable to pre-disperse the carbon dioxide scavenger in the isocyanate component instead of in the polyol component as in WO 2019 / 137859, which would also eliminate the need to incorporate the carbon dioxide scavenger during mixing of the components or immediately prior to application of the reactive system. However, the main problem for achieving storage-stable dispersions of basic ("basic" means that it reacts chemically as a base, e.g., produces an alkaline pH on contact with water) metal oxide and hydroxide particles, such as calcium oxide, in isocyanate compounds is caused by the basic material catalyzing the trimerization of the isocyanate, which in turn results in a large increase in viscosity in a relatively short period of time.

[0019] Also, the alkaline pH of such dispersions is detrimental to many additional ingredients, such as pigments in dispersions for applications where color is important; the alkaline environment often causes discoloration and / or fading. Summary of the Invention [Problem to be solved by the invention]

[0020] It is therefore an object of the present invention to provide a storage stable composition, particularly a dispersion, of a carbon dioxide sequestering agent and an isocyanate compound. The viscosity of the composition, particularly the viscosity of the isocyanate compound therein, should not increase significantly upon storage under normal conditions, such as room temperature. Furthermore, the functionality of the other components should not be compromised over time and during storage. [Means for solving the problem]

[0021] Surprisingly, it has been found that shielding the outer surface of basic metal oxide and hydroxide particles with certain additives can prevent the problems of uncontrolled viscosity increase and undesirable effects on other components without compromising their carbon dioxide removal efficacy. In contrast, metal oxide and hydroxide particles modified with certain additives prevent the formation of metal carbonates that can remove CO2 The inorganic particles are sufficiently reactive in capturing the ions, or surprisingly, are even more reactive than the unmodified particles. A smaller amount of inorganic particles is required in the formulation of a bubble-free coating than the unmodified particles. In particular, additives that are chelating agents containing at least two functional groups that can bind to the cations of the metal of the basic metal oxide or hydroxide provide sufficient shielding. This stabilizes the isocyanate or isocyanate prepolymer, other components in the composition, and thus the entire composition.

[0022] Thus, the present invention provides (1) A composition comprising: (a) at least one polyisocyanate; (b) particles of at least one basic metal compound independently selected from the group consisting of basic metal oxide compounds and basic metal hydroxide compounds; (c) at least one first additive which is a chelating agent comprising at least two functional groups capable of binding to a cation of said metal; A composition comprising: (2) The composition according to item (1), wherein the at least one polyisocyanate is a prepolymer formed from at least one polyol and at least one polyisocyanate; (3) A kit comprising a composition as defined in item (1) above and a second composition which is a liquid comprising water for reaction with at least one polyisocyanate and / or prepolymer and, optionally, for reaction with at least one basic metal compound; (4) Use of a composition as defined in item (1) above for producing a coating by reaction with ambient moisture; (5) Use of the composition defined in item (1) above for preparing a coating after mixing said composition with a second composition defined in item (3) above; (6) A process for producing a coating on a surface, comprising the steps of: (i) providing a composition as defined in item (1) above; (ii) allowing ambient moisture to be present; (iii) applying the composition to a surface; (iv) allowing the composition applied in step (iii) to cure while in contact with ambient moisture; A process involving; (7) A process for producing a coating on a surface, comprising the steps of: (i) providing a first composition as defined in item (1) above; (ii) providing a second composition as defined in item (3) above; (iii) mixing the first and second compositions; (iv) applying the mixture obtained in step (iii) to a surface; (v) curing the mixture applied in step (iv); Processes including to provide. [Brief description of the drawings]

[0023] [Figure 1] The composition according to the invention after curing in reactivity test b. As a result, no foaming is observed and a clean and smooth surface is seen. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Compound names beginning with "poly" indicate substances that contain more than one of each of the mentioned functional groups or monomers or repeating units, formally per molecule. In the case of functional groups, the compound itself can be a monomer, oligomer or polymeric compound. For example, polyols are compounds with two or more hydroxy groups, polyisocyanates are compounds with two or more isocyanate groups. Polyurethanes are polymeric compounds resulting from the polyaddition between polyisocyanates and polyols, and polybutadiene is a polymer resulting from the polymerization of 1,3-butadiene.

[0025] The term "average functionality" refers to the average number of functional groups in a given molecule.

[0026] "M w " represents the weight average molecular weight, determined in accordance with DIN 55672-1 and referenced to polystyrene calibration standards.

[0027] As used herein, "% by weight" refers to the total weight of the composition, unless otherwise stated. As used herein, "wt.%", "wt.%" or "wt%" refers to percent by weight (%) or percent by weight (%), in each case relative to the total weight of the composition, unless otherwise stated.

[0028] "C 14 ~C 22 ", "C 16 ~C 18 ", "C 16 ~C 18 ", "C 18 ", for example, "C 14 ~C 22 Fatty acid esters, C 16 ~C 18 Fatty acid esters, C 16 ~C 18 Fatty acid esters, C 18 Fatty acid esters, C 14 ~C 22 Fatty alcohols, C 16 ~C 18 Fatty alcohols, C 16 ~C 18 Fatty alcohols" and "C 18 In the terms "fatty alcohol" and "non-fatty alcohol," the term refers to the length of the hydrocarbon main chain or backbone of the fatty acid and fatty alcohol, respectively, and does not include any attached functional groups, such as ether or ester groups, which may be added to the length of the hydrocarbon backbone.

[0029] "C 1 ~C 6 "Alkyl, "C 1 ~C 10 " alkyl and "C 1 ~C 100Terms such as alkyl refer to alkyl residues having 1 to 6, 1 to 10, and 1 to 100 carbon atoms, etc., respectively.

[0030] Similarly, "C 4 ~C 100 -Hydrocarbon tail, "C 4 ~C 22 -Hydrocarbon tail" and "C 6 ~C 18 The term "-hydrocarbon tail" refers to hydrocarbon tails having 4 to 100, 4 to 22, and 6 to 18 carbon atoms, respectively.

[0031] The term "alkyl" means a fully saturated hydrocarbon chain with no C-C double or triple bonds, while the terms "hydrocarbon backbone" or "hydrocarbon tail" encompass saturated, unsaturated and polyunsaturated hydrocarbon chains, such as alkyl, alkene and alkyne residues, unless otherwise specified by phrases such as "saturated", "unsaturated" or "polyunsaturated".

[0032] The term "repeating unit" or "repeat unit" refers to a basic structural unit that is repeated periodically along a polymer chain, and is also defined as a monomer or monomer unit. Thus, a repeating unit or monomer is a low molecular weight compound from which a polymer is obtained by synthetic chemical reaction. For example, poly-1,2-propylene ether diol has the formula H-[OCH 2 CH(CH 3 )-] n OH, where n is usually an integer of 4 or more, and the repeating unit is an isopropoxy (isopropylene oxide) (isopropylene oxide) residue [OCH 2 CH(CH 3 )-].

[0033] The term "oligomer" refers to a molecule consisting of 2 to 10 monomers, not necessarily having a distribution of molecular weights.

[0034] The term "prepolymer" refers to a monomer or system of monomers that has been reacted to an intermediate molecular weight state. This material can be further polymerized through reactive groups to a fully cured, high molecular weight state. An isocyanate prepolymer or polyurethane prepolymer is one in which all of the polyol hydroxyl end groups have reacted with isocyanate groups, leaving isocyanate functionality at the end instead of hydroxyl groups.

[0035] It is to be understood that the invention is not limited to the particular compositions and formulations described, as such compositions and formulations may, of course, vary, and it is also to be understood that the terminology used herein is not intended to be limiting, since the scope of the invention may only be limited by the claims.

[0036] "Independently selected" from a list or group of items means that the selected items may be the same or different from each other, particularly when "at least one" item is selected, including a choice of one or more items (e.g., two, three, four or more items are selected), and thus should be selected independently of each other, i.e., the items may all be the same or different.

[0037] Hereinafter, when a group is defined as including at least a certain number of embodiments, this is meant to include groups that preferably consist of only these embodiments. Furthermore, when used in the description and claims, the terms "first", "second", "third", etc., (i), (ii), (iii), "(a)", "(b)", "(c)", "(d)", etc. are used to distinguish between similar or different elements and are not necessarily used to describe an order or chronological sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances and that the embodiments of the invention described herein can function in other orders than those described or illustrated herein. When terms such as "first", "second", "third", or "(A)", "(B)" and "(C)", or "(a)", "(b)", "(c)", "(d)", or "I", "ii", "iii", etc., relate to steps of a method or use or assay, there is no consistency of time or time interval between the steps, i.e., unless otherwise stated in the application as described herein above or below, the steps may be performed simultaneously or there may be a time interval of seconds, minutes, hours, days, weeks, months or even years between such steps.

[0038] In the following sections, the various aspects of the invention are defined in more detail. Each aspect so defined can be combined with any other aspect or aspects, unless expressly indicated to the contrary or contrary to the gist of the invention. In particular, any feature indicated as being preferred or advantageous can be combined with any other feature or features, whether preferred or advantageous or not.

[0039] Throughout this specification, reference to "one embodiment" or "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, the appearances of the phrase "in one embodiment" or "in an embodiment" in various places throughout this specification do not necessarily all refer to the same embodiment, but may. Furthermore, particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments, as would be apparent to one of ordinary skill in the art from this disclosure. Furthermore, although some embodiments described herein include some features and do not include other features included in other embodiments, it is intended that combinations of features of different embodiments are within the scope of the invention and form different embodiments, as would be understood by one of ordinary skill in the art. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0040] Polyisocyanates The terms "polyisocyanate" or "polyisocyanate compound", as used interchangeably herein, refer to an isocyanate compound having at least two isocyanate groups, in particular at least two free isocyanate groups. A "free isocyanate group" is a functional isocyanate group that is not blocked or protected and is therefore capable of undergoing a chemical reaction, for example with a hydroxy group of water or an alcohol, in particular with one of the hydroxy groups of a polyol.

[0041] In particular, the polyisocyanate of the present invention may have 2 to 6 (free) isocyanate groups, preferably 2 or 3 (free) isocyanate groups. The isocyanate may be selected from the group consisting of aliphatic and aromatic isocyanate compounds.

[0042] Polyisocyanates include aliphatic polyisocyanates, cycloaliphatic polyisocyanates, aromatic polyisocyanates, and modified polyisocyanates containing, for example, uretonimine groups, allophanate groups, isocyanurate groups, urethane groups, or biuret groups.

[0043] In one embodiment, the polyisocyanate is a diisocyanate of the aliphatic, cycloaliphatic, aromatic and modified polyisocyanates described above.

[0044] Suitable cycloaliphatic polyisocyanates include those having two or more isocyanato groups attached directly and / or indirectly to an alicyclic ring. Suitable aromatic polyisocyanates include those having two or more isocyanato groups attached directly and / or indirectly to an aromatic ring.

[0045] The aliphatic and cycloaliphatic polyisocyanates can contain from 4 to 100 carbon atoms linked in linear chains or cyclized.

[0046] Suitable polyisocyanates are pentamethylene diisocyanate, hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), 2,2,4- and 2,4,4-trimethyl-1,6-hexamethylene diisocyanate, tetramethoxybutane 1,4-diisocyanate, butane-1,4-diisocyanate, dicyclohexylmethane diisocyanate, cyclohexane 1,3- and 1,4-diisocyanate, 1,12-dodecamethylene diisocyanate, diisocyanates of dimeric fatty acids; lysine methyl ester diisocyanate, 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane, hydrogenated diphenylmethane diisocyanate (H12MDI), hydrogen The diisocyanate is selected from the group consisting of hydrogenated 2,4-tolylene diisocyanate, hydrogenated 2,6-tolylene diisocyanate, methylene diphenyl diisocyanate (MDI), 2,4-toluene diisocyanate (2,4-TDI), 2,6-toluene diisocyanate (2,6-TDI), naphthalene diisocyanate (NDI), tetramethyl xylylene diisocyanate (TMXDI), p-xylylene diisocyanate, and mixtures of these compounds, polymeric methylene diphenyl diisocyanate, carbodiimide modified methylene diphenyl diisocyanate, tris-(isocyanatohexyl)-isocyanurate and mixtures with its higher homologues, tris-(isocyanatohexyl)-biuret or mixtures with its higher homologues. Methylene diphenyl diisocyanate (MDI) is available in three different isomers, namely 2,2'-methylene diphenyl diisocyanate (2,2'-MDI), 2,4'-methylene diphenyl diisocyanate (2,4'-MDI) and 4,4'-methylene diphenyl diisocyanate (4,4'-MDI). MDI can be classified into monomeric MDI (also called MMDI) and polymeric MDI (PMDI), also called technical MDI. For the present invention, polymeric MDI is the preferred MDI. Polymeric MDI includes oligomeric species and MDI isomers. Thus, polymeric MDI can contain a single MDI isomer or an isomeric mixture of two or three MDI isomers, the remainder being oligomeric species.Polymeric MDI tends to have an isocyanate functionality greater than 2. In these products, the isomer ratios and amounts of oligomeric species can vary over a wide range. For example, polymeric MDI can typically contain about 20-80 wt.% monomeric MDI isomers, with the remainder being the oligomeric species. The MDI isomers are often a mixture of 4,4'-MDI, 2,4'-MDI and low levels of 2,2'-MDI.

[0047] Preferably, the polyisocyanate is selected from the group consisting of hexamethylene diisocyanate (HDI), methylene diphenyl diisocyanate (MDI) or derivatives of MDI, such as polymeric methylene diphenyl diisocyanate, oligomers and / or prepolymers of carbodiimide modified methylene diphenyl diisocyanate. More preferably, the polyisocyanate is selected from the group consisting of hexamethylene diisocyanate (HDI), methylene diphenyl diisocyanate (MDI), isophorone diisocyanate (IPDI) and toluene diisocyanate (TDI), and even more preferably, from the group consisting of IPDI, TDI and methylene diphenyl diisocyanate (MDI). The polyisocyanate may also be selected from the oligomers and / or prepolymers of the above-mentioned polyisocyanates.

[0048] Polymeric methylene diphenyl diisocyanates and carbodiimide modified methylene diphenyl diisocyanates are commercially available, for example Lupranat M, Lupranat MI and Lupranat MM from BASF SE, or Desmodur MDI type from Covestro. Polyisocyanate resins based on hexamethylene diisocyanate (HDI) are commercially available, for example Desmodur N type from Covestro, Tolonate from Vencorex. TM X Flo.

[0049] The polyisocyanate can be in any physical state. Preferably, the polyisocyanate is in a liquid state.

[0050] Preferably, the at least one polyisocyanate is present in an amount in the range of 10 wt.% to 90 wt.%, more preferably in the range of 20 wt.% to 90 wt.%, more preferably in the range of 20 wt.% to 80 wt.%, and most preferably in the range of 30 wt.% to 80 wt.%, based on the total weight of the composition.

[0051] The polyisocyanate may be a prepolymer formed from a polyol and a polyisocyanate. In this embodiment, the polyisocyanate reacted with the polyol preferably has at least two free isocyanate groups. This advantageously results in the presence of at least two (free) isocyanate groups in the prepolymer.

[0052] The polyisocyanates of the present invention preferably do not contain any ionic groups.

[0053] Basic metal compounds "Basic" in this context means that it is capable of chemically reacting as a base, e.g., generating an alkaline pH when in contact with water. Thus, any basic metal compound in that sense selected from the group consisting of basic metal oxide compounds (more simply called basic metal oxides) and basic metal hydroxide compounds (more simply called basic metal hydroxides) is suitable. Thus, the basic metal compound may in particular be selected from the group consisting of basic metal oxide compounds, the group consisting of basic metal hydroxide compounds, or a combination of both of the above groups. In one embodiment, the basic metal compound may be a combination of one or two basic metal oxides and one or two basic metal hydroxides. In a further embodiment, the basic metal compound may be a combination of exactly two basic metal oxides and exactly two basic metal hydroxides. In a further embodiment, the basic metal compound may be a combination of exactly one basic metal oxide and exactly one basic metal hydroxide. Preferably, the metal(s) of said combination of oxides and hydroxides are the same, for example, calcium oxide (CaO) and magnesium oxide (MgO) are calcium hydroxide (Ca(OH) 2 ) and magnesium hydroxide (Mg(OH) 2 ) or MgO is combined with Mg(OH) 2 or CaO is combined with Ca(OH) 2 and so on.

[0054] The selection of basic metal compounds may be such as to result in two or more basic metal compounds selected, for example, from two oxides, or two hydroxides, or one oxide and one hydroxide, or two oxides and one hydroxide. Of the selection and in the compositions of the invention, it is preferred that at least one basic metal oxide is present.

[0055] Compounds of metals which exist under standard conditions predominantly in one of the oxidation states +I, +II and +III, ie oxides and / or hydroxides, are preferred, with +II being more preferred.

[0056] The basic metal compound may advantageously be selected from the oxides and hydroxides of metal elements of Groups 1 (IA; alkali metals), 2 (IIA; alkaline earth metals), 3 (IIIB; third transition metal group) and 12 (IIB; second transition metal group) of the Periodic Table of the Elements, preferably selected from the oxides and hydroxides of alkali metals, alkaline earth metals, scandium and zinc, more preferably selected from the oxides and hydroxides of alkali metals and alkaline earth metals, even more preferably selected from the oxides and hydroxides of alkaline earth metals.

[0057] The basic metal compound may also be selected from the oxides and hydroxides of the group consisting of beryllium, magnesium, calcium, barium, zinc and scandium, preferably selected from the oxides and hydroxides of magnesium, calcium and zinc, more preferably magnesium and calcium, and most preferably calcium.

[0058] The basic metal compound may also be selected from the group consisting of calcium oxide, magnesium oxide, calcium hydroxide and magnesium hydroxide, preferably calcium oxide and calcium hydroxide, most preferably calcium oxide.

[0059] In one aspect, depending on the source material of the basic metal compound, such as, for example, cement, it is understood that the basic metal oxides and hydroxides of the present invention may in practice have technical grades in terms of purity and / or contain a certain residual amount of water, although higher grades of purity, such as at least 97%, at least 98% or at least 99% purity, may also work. Similarly, magnesium oxide and / or magnesium hydroxide, in particular magnesium oxide, may be present in the composition of the present invention only in relatively small amounts (compared to calcium oxide and / or calcium hydroxide), for example, at most 5 wt.%, preferably at most 3 wt.%, more preferably at most 2 wt.%, even more preferably at most 1 wt.%, most preferably at most 0.5 wt.%, based on the total weight of the composition. In this context, for example, sodium oxide (Na 2O) and / or potassium oxide (K 2 Alkali metal oxides such as 0) may be present in even smaller amounts, for example up to 0.5 wt.%, preferably up to 0.2 wt.%, more preferably up to 0.1 wt.%, even more preferably up to 0.05 wt.%, and most preferably up to 0.01 wt.%, based on the total weight of the composition.

[0060] Thus, in one embodiment, the basic metal compound can comprise a cement, preferably a tricalcium silicate (white cement) or a calcium aluminate cement, more preferably a calcium aluminate cement. In particular, when the basic metal compound is selected from the group consisting of calcium oxide, magnesium oxide, calcium hydroxide and magnesium hydroxide, preferably calcium oxide and calcium hydroxide, most preferably calcium oxide, the basic metal compound can be provided from a cement, preferably a tricalcium silicate (white cement) or a calcium aluminate cement, more preferably a calcium aluminate cement. Thus, in one embodiment, the basic metal compound can comprise a cement, preferably a tricalcium silicate (white cement) or a calcium aluminate cement, more preferably a calcium aluminate cement.

[0061] The presence of basic metal compounds reduces the amount of CO generated by the reaction of isocyanate compounds with water. 2 By trapping or inhibiting the formation of air bubbles or blisters in the cured coating composition, especially at the surface thereof, the cured coating composition is prevented from forming.

[0062] The dispersion of particles of basic metal compounds, i.e. basic metal oxide and / or hydroxide compounds, in the one-component or two-component (coating) composition of the present invention needs to be stabilized, otherwise the particles tend to form non-redispersible sediments within a few days.The first additive according to the present invention helps to stabilize the composition as a dispersion.The use of a plasticizer provides further stabilization in this respect.

[0063] The particle size of the basic metal compound particles is preferably in the range of 2 μm to 200 μm.

[0064] The amount of basic metal compound particles in one of the compositions according to the invention can range from 1 wt.% to 75 wt.%, preferably from 5 wt.% to 75 wt.%, more preferably from 10 wt.% to 75 wt.%, most preferably from 10 wt.% to 45 wt.%, based on the weight of the polyisocyanate compound. However, depending on the composition, the amount of basic metal compound particles can also range from 1 wt.% to 40 wt.% or from 10 wt.% to 35 wt.%, based on the weight of the polyisocyanate compound ("wt.%, "wt.%" or "wt%" means percent by weight or percent by weight).

[0065] First additive (chelating agent) The first additive in the composition of the present invention is a chelating agent, particularly an organic chelating agent, also called a chelating ligand. "Organic chelating agent" refers to a chelating agent that is composed of an organic compound or molecule. Organic compounds usually contain at least one carbon-hydrogen bond, with very few exceptions such as urea. Thus, Zn 2+ Inorganic chelating agents such as ions are excluded and are not included within the meaning of the term "chelating agent" according to the present invention.

[0066] The chelating agent according to the invention is a cation of the metal (M) of the basic metal compound according to the invention, in particular one (M + ), 2 (M 2+ ) or 3 (M 3+ ), preferably one or two positive charges, more preferably two positive charges.

[0067] For this purpose, at least one of the at least two functional groups that can be bonded to the cation of the metal (M) is preferably an acid group-containing functional group, i.e. a functional group that contains an acid group or one of its derivatives; said functional group may contain at least one acid group, but usually contains exactly one acid group. However, an acid anhydride can be considered to contain two acid groups, since it is the anhydride of two free acids. Such acid group-containing functional groups according to the present invention are the acids themselves (also called "free acids") and their derivatives, i.e. their corresponding acid anions, salts, amides, acid anhydrides and esters, in particular free carboxylic acids, free sulfonic acids, free phosphonic acids and free phosphoric acids, as well as their corresponding acid anions, salts, amides, acid anhydrides and esters. For example, carboxylic acid esters, carboxylic acid anhydrides and carboxamides are each carboxylic acid group-containing functional groups, sulfonates and sulfonic acid sodium salts are each sulfonic acid group-containing functional groups, and phosphonic acid esters are phosphonic acid group-containing functional groups.

[0068] The chelating agent may contain one or more steric hindrance groups, preferably one steric hindrance group.

[0069] Sterically hindering groups are sterically more demanding organic groups containing at least four carbon atoms.

[0070] Thus, in one aspect, the steric hindrance group of the present invention is C 4 ~C 100 -Hydrocarbon tails and polyethers, preferably C 4 ~C 22 -Hydrocarbon tails and polyethers, more preferably C 6 ~C 18 - a polyether having a hydrocarbon tail and 3 to 50 repeating units.

[0071] The hydrocarbon tail may be a linear or branched hydrocarbon chain. The hydrocarbon chain may be saturated, (partially) unsaturated or polyunsaturated.

[0072] The chain between the functional groups that bind to the metal cation is C 2 ~C 10 -Hydrocarbon backbone, preferably C 2 ~C 4 one or more methylene groups of said hydrocarbon backbone may be replaced by a heteroatom independently selected from the group consisting of N, P, O and S.

[0073] C 2 ~C 10 -Hydrocarbon skeleton or C 2 ~C 4 One or more methylene groups of the hydrocarbon backbone may bear a functional group independently selected from the group consisting of acid groups and their corresponding acid anions, salts, amides, acid anhydrides and esters, amino and hydroxy, preferably selected from the group consisting of carboxylic acids, sulfonic acids, phosphonic acids and phosphoric acids and their corresponding acid anions, salts, amides, acid anhydrides and esters, amino and hydroxy, or amino, carboxylate, carboxamide, carboxylic ester, carboxylic anhydride, hydroxy, sulfonate, phosphonate and phosphate.

[0074] The hydrocarbon backbone may be a linear or branched hydrocarbon backbone. The hydrocarbon backbone may be saturated, (partially) unsaturated or polyunsaturated.

[0075] The chelating agent according to the invention preferably comprises at least two functional groups, each of which has at least one heteroatom selected from the group consisting of oxygen and nitrogen. The at least two functional groups may be the same or different. The presence of at least one acid group-containing functional group is preferred.

[0076] The acid group-containing functional group is preferably selected from the group consisting of an acid group and its corresponding acid anion, salt, amide, acid anhydride and ester.

[0077] The acid group may be selected from the group consisting of carboxylic acid, sulfonic acid, phosphonic acid and phosphoric acid.

[0078] Thus, the at least two functional groups may be selected from the group consisting of acid-containing functional groups selected from the group consisting of carboxylic acid, sulfonic acid, phosphonic acid, and phosphoric acid, and their corresponding acid anions, salts, amides, acid anhydrides, and esters, and amino and hydroxy.

[0079] Also, the acid group-containing functional group may be selected from the group consisting of carboxylic acids, sulfonic acids, phosphonic acids, and phosphoric acids, their corresponding acid anions and acid salts, carboxamides, carboxylic esters, and carboxylic anhydrides.

[0080] Thus, the at least two functional groups may be selected from the group consisting of acid group-containing functional groups selected from the group consisting of carboxylic acid, sulfonic acid, phosphonic acid and phosphoric acid, their corresponding acid anions and acid salts, carboxamide, carboxylic ester and carboxylic anhydride, and amino and hydroxy.

[0081] More specifically, the amino can include primary, secondary and tertiary amino. The acid anion can be carboxylate, phosphonate, phosphate and sulfonate. It is understood that the chelating agents containing one or more of the functional groups selected from phosphonate, phosphate and sulfonate are also used as their corresponding salts, e.g., salts with alkali metals or ammonium.

[0082] In one embodiment, the chelating agent has two or more functional groups of the same type or of two or three types (in the same molecule) as described above. Preferably, one chelating agent has two or more functional groups of the same type or of two types as described above. Suitable combinations in this regard are, for example: one or more hydroxyl groups and one or more carboxylic acid groups or carboxyl groups (such as in the case of hydroxycarboxylic acids such as citric acid); one or more amino groups and one or more carboxyl groups (such as in the case of amino acids); one or more amino groups, particularly tertiary amino groups, and one or more carboxylic acid groups (such as in the case of ethylenediaminetetraacetic acid (EDTA)); one or more amino groups, particularly tertiary amino groups, and one or more phosphonic acid groups; two or more carboxyl groups (such as in the case of dicarboxylic and tricarboxylic acids).

[0083] In one embodiment, the chelating agent is a.1) amino acids, in particular naturally occurring amino acids, more preferably proteinogenic amino acids, such as lysine, aspartic acid, glutamic acid and serine; a.2) Polyphosphonic acids, such as diphosphonic acids, such as [[(hydroxyethyl)imino]bis(methylene)]bisphosphonic acid (HEMPA) and compounds of formula A [ka] (Wherein, R is H or CH 3 where m+n is an integer of 3 to 60, preferably 4 to 45, more preferably 10 to 45, and most preferably 35 to 45; and M is H, Na, K, or NR 4 (R is H, C 1 ~C 4 When all R are selected as H, R 4 N + is ammonium) triphosphonic acids such as 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC); tetraphosphonic acids such as hexylene-1,6-diamine-tetrakis(methylphosphonic acid) (HDTMP) and ethylene-1,2-diamine-tetrakis(methylenephosphonic acid); and pentaphosphonic acids such as diethylenetriamine-pentakis(methylenephosphonic acid) (DTPMPA; [[(phosphonomethyl)imino]bis[ethane-2,1-diylnitrilobis(methylene)]]tetrakisphosphonic acid) and bis(hexamethylene)triamine-pentakis(methylenephosphonic acid) (BHMTMP). a.3) phosphoric and phosphonic acids, such as P-[(tetrahydro-2-hydroxy-2-oxido-4H-1,4,2-oxazaphosphorin-4-yl)methyl]phosphonic acid, a.4) sulfonic acids including monosulfonic acids such as aminoalkylsulfonic acids, e.g. aminoethylsulfonic acid and aminopropylsulfonic acid, aminoethyl-aminopropanesulfonic acid and its sodium salt, cyclohexylaminopropanesulfonic acid and its sodium salt, and arylsulfonic acids, e.g. orthanilic acid (2-aminobenzenesulfonic acid), disulfonic acids, e.g. dihydroxybenzenedisulfonic acid, e.g. 4,5-dihydroxybenzene-1,3-disulfonic acid and its salts, anilinedisulfonic acids, e.g. aniline-2,5-disulfonic acid and its salts, 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, and polysulfonic acids, e.g. poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PolyAMPS), melamine sulfonic acid condensates (sulfonated melamine formaldehyde condensates) and lignosulfonates including lignosulfonic acid sodium salt; a.5) Superplasticizers, especially melamine derivatives, such as sulfonated melamine formaldehyde condensates, a.6) Carboxylic acid esters, such as acetylacetone methacrylate and 2-[2-[(2-methyl-1-oxo-2-propen-1-yl)oxy]ethyl]-3-oxobutanoic acid, a.7) Carboxylic acid anhydrides, such as (2-dodecen-1-yl)-succinic anhydride, dihydro-3-(octadecenyl)furan-2,5-dione and dihydro-3-(hexadecenyl)furan-2,5-dione, a.8) Polyhydroxycarboxylic acids, in particular monocarboxylic acids having 2 to 6, preferably 2 to 5, more preferably 2 to 4 or 3 to 5, most preferably 5 hydroxy groups, such as gluconic acid, a.9) Carboxylic acids, such as acetoacetic acid, and a.10) Polycarboxylic acids such as, for example, di-, tri-, tetra-, penta- and hexacarboxylic acids, in particular dicarboxylic acids such as, for example, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid and 2-[2-[(2-methyl-1-oxo-2-propen-1-yl)oxy]ethyl]-propanedioic acid, tetra-carboxylic acids such as, for example, ethylenediaminetetraacetic acid (H4-EDTA), and polycarboxylic acids such as, for example, polyacrylic acid (PAA), polymethacrylic acid (PMAA) and copolymers of polyacrylic acid and methacrylic acid (collectively referred to as "poly(meth)acrylic acid" or "P(M)AA"), which may optionally be poly-C 1 ~C 4 - alkylene glycols, such as polyethylene glycols and polypropylene glycols, each having a side chain selected from the group consisting of methoxy or ethoxy groups. C 1 ~C 6 Alkyl or C 1 ~C 6 It may be (further) substituted by alkoxy.

[0084] In a further aspect, in combination with or apart from the preceding aspects, the chelating agent is b.1) amino acids, in particular naturally occurring amino acids, more preferably proteinogenic amino acids; b.2) polyphosphonic acids, including diphosphonic acids, triphosphonic acids, tetraphosphonic acids and pentaphosphonic acids; b.3) phosphoric and phosphonic acids, b.4) sulfonic acids, including monosulfonic, disulfonic and polysulfonic acids, having at least one additional functional group selected from the group consisting of amino and hydroxy; b.5) ​​Superplasticizers, b.6) carboxylic acid esters, b.7) carboxylic acid anhydrides, b.8) polyhydroxycarboxylic acids, a.9) Carboxylic acids, and b.10) Polycarboxylic acids, such as dicarboxylic acids, tricarboxylic acids, tetracarboxylic acids and polycarboxylic acids. C 1 ~C 6 Alkyl or C 1 ~C 6 It may be (further) substituted by alkoxy.

[0085] The chelating agent of the present invention can be used as a free acid, a partially neutralized acid, or a neutralized acid. In the case of a partially neutralized acid, the chelating agent can be used as a hydrogen salt, and in the case of a neutralized acid, the chelating agent can be used as a salt. The counter ion M in these salts and hydrogen salts + is Na + , K + and R 4 N + R can be selected from the group consisting of H, C 1 ~C 4 alkyl, benzyl, and oleyl, and when all R are selected as H, R 4 N + is ammonium. The salts and hydrogen salts may be mixed salts containing at least two different types of counter ions.

[0086] In a further aspect, the chelating agent further comprises, in combination with or apart from the preceding aspects: c.1) Bidentate chelating agents, such as acetylacetone (acac), ethylenediamine (en), oxalate (ox), tartrate (tart), dimethylglyoxime (dmg), 8-hydroxyquinoline (oxin), 2,2'-bipyridine (bpy), 1,10-phenanthroline (phen), dimercaptosuccinic acid (DMSA) and 1,2-bis(diphenylphosphino)ethane. c.2) Tridentate chelating agents, such as 2-(2-aminoethylamino)ethanol (AEEA), diethylenetriamine (dien), iminodiacetate (ida) and citrate (cit). c.3) Tetradentate chelating agents, such as triethylenetetramine (trien, TETA), triaminotriethylamine (tren), nitrilotriacetate (nta), bis(salicylidene)ethylenediamine (salen), etc. c.4) Pentadentate chelating agents, such as ethylenediamine triacetate (TED), c.5) Hexadentate chelating agents, such as ethylenediaminetetraacetate (EDTA), c.6) Octadentate chelating agents, such as diethylenetriaminepentaacetate (DTPA) and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetate (DOTA); and c.7) Decadentate chelating agents, such as triethylenetetramine hexaacetate (TTHA) is selected from the group consisting of:

[0087] The amount of the first additive (chelating agent) is usually in the range of 0.1 wt.% to 10 wt.%, preferably 0.3 wt.% to 6 wt.%, based on the weight of the basic metal compound particles. The first additive can also be pre-dissolved in water, for example, by using the first additive as a mixture (emulsion) with water or as an aqueous solution. In this embodiment, the amount of water used is preferably 5 wt.% to 80 wt.%, more preferably 5 wt.% to 75 wt.%, even more preferably 10 wt.% to 75 wt.%, even more preferably 35 wt.% to 60 wt.%, and most preferably 40 wt.% to 55 wt.%, based on the weight of the mixture or solution containing the first additive and water.

[0088] In one aspect of the present invention, two or more first additives (chelating agents), preferably two first additives, can be mixed.In a further aspect of the present invention, a first additive can be mixed with another first additive, both of which are pure, i.e., not pre-dissolved in water.In yet a further aspect of the present invention, a first additive that is pure, i.e., not pre-dissolved in water, can be mixed with another first additive that is pre-dissolved in water.In another aspect of the present invention, two different first additives, both of which are pre-dissolved in water, can be mixed.

[0089] The chelating agent appears to shield the basic metal compound to such an extent that its reactivity is mitigated, inhibiting its contribution to the trimerization of isocyanates and any other reactions that would otherwise cause a significant increase in the viscosity of the composition of the present invention in a relatively short time, thereby reducing its processability and effectively shortening its shelf life. Surprisingly, the activity of the basic metal compound as a carbon dioxide scavenger is not significantly impaired. As a result, the chelating agent stabilizes the composition of the present invention, maintains its processability, and even improves its processability, thereby extending its shelf life.

[0090] Second Additive (Alkoxysilane) The composition according to the present invention can optionally include a second additive, which may be useful in aiding the effect of the first additive in stabilizing the composition of the present invention, maintaining its processability, and thereby extending its shelf life.

[0091] The second additive is selected from the group consisting of alkoxysilanes. In one embodiment, the alkoxysilane is represented by the formula Si(OX) m Y n Z 4-m-n (In the formula, Each X is C 1 ~C 6 -Alkyl group, preferably C 1 ~C 3 - an alkyl group, most preferably methyl or ethyl; Each Y is C 1 ~C 20 -Alkyl or C 5 ~C 10 -aryl group, Each Z is C 1 ~C 6 -Alkyl groups, especially saturated C 1 ~C 6 -Alkyl group or unsaturated C 1 ~C 6 an alkyl group, such as, for example, vinyl, optionally carrying a functional group, preferably selected from the group consisting of glycidyloxy, acryloyloxy, methacryloyloxy, amino and hydroxy, preferably glycidyloxy, acryloyloxy, methacryloyloxy and amino, more preferably glycidyloxy, acryloyloxy and methacryloyloxy, m is an integer from 1 to 4, preferably m is 3, and n is an integer from 0 to 3. It is.

[0092] Each X, when present at least 2 times, can be selected independently of or identical to every other X, and is preferably selected to be identical to every other X. Each Y, when present at least 2 times, can be selected independently of or identical to every other Y, and is preferably selected to be identical to every other Y. Each Z, when present at least 2 times, can be selected independently of or identical to every other Z, and is preferably selected to be identical to every other Z.

[0093] Alkoxysilanes can react as silane coupling agents due to the presence of at least one alkoxy group (OX in the above general formula of alkoxysilane) as a hydrolyzable group bonded to a silicon atom and at least one organic group (Y and / or Z in the above general formula of alkoxysilane) bonded to the same silicon atom. It has been reported that epoxides can react with isocyanates to form oxazolidones, but the presence of epoxy groups in the organic group of the silane coupling agent (in the case of the organic group represented by Z in the above general formula) has not been found to be detrimental to the stability of the isocyanate composition.

[0094] In the present invention, the type of alkoxysilane is not particularly limited as long as the alkoxysilane does not contain active hydrogen. Suitable alkoxysilanes include, for example, methyltrimethoxysilane, ethyltrimethoxysilane, propyltrimethoxysilane (particularly n-propyltrimethoxysilane and iso-propyltrimethoxysilane), butyltrimethoxysilane (particularly n-butyltrimethoxysilane, sec-butyltrimethoxysilane and tert-butyltrimethoxysilane), pentyltrimethoxysilane, hexyltrimethoxysilane (particularly n-hexyltrimethoxysilane and 2-hexyltrimethoxysilane), and the like. n-octyltrimethoxysilane, 2-octyltrimethoxysilane, 3-octyltrimethoxysilane and 4-octyltrimethoxysilane), vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris(β-methoxyethoxy)silane, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltrimethyldiethoxy ... The silane may be selected from the group consisting of propyltriethoxysilane, gamma-methacryloxypropylmethyldimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropylmethyldiethoxysilane, and gamma-methacryloxypropyltriethoxysilane, preferably selected from the group consisting of methyltrimethoxysilane, ethyltrimethoxysilane, propyltrimethoxysilane, butyltrimethoxysilane, octyltrimethoxysilane, vinyltrimethoxysilane, and gamma-glycidoxypropyltrimethoxysilane, more preferably selected from the group consisting of methyltrimethoxysilane, ethyltrimethoxysilane, propyltrimethoxysilane, butyltrimethoxysilane, octyltrimethoxysilane, and gamma-glycidoxypropyltrimethoxysilane, and most preferably selected from the group consisting of methyltrimethoxysilane, octyltrimethoxysilane, and gamma-glycidoxypropyltrimethoxysilane.

[0095] Polyol A "polyol" or a "polyol compound", as used interchangeably herein, is a polyhydroxy compound. A "polyol" or a "polyhydroxy compound" contains at least two free hydroxy groups. The term "free hydroxy group" refers to an unprotected reactive hydroxy group that is reactive, for example, towards an isocyanate group.

[0096] The polyols reacted with the polyisocyanates to form the prepolymers ("Part B" of the 1K or 2K systems) may be selected from the group consisting of polyether polyols, polyester polyols, polyols of fatty acid esters, polyols of modified fatty acid esters, polyols of fatty alcohols, polyols of modified fatty alcohols, polyols of dimer fatty alcohols, polyols of dimer modified fatty alcohols, polyols of trimer fatty alcohols, polyols of trimer modified fatty alcohols, polycarbonate polyols, polybutadiene polyols and polyacrylate polyols; Preferably, the polyol is selected from the group consisting of polyols of fatty acid esters, polyols of modified fatty acid esters, polyols of fatty alcohols, polyols of modified fatty alcohols, polyols of dimeric fatty alcohols, polyols of dimeric modified fatty alcohols, polycarbonate polyols, polybutadiene polyols and polyacrylate polyols; More preferably, it is selected from the group consisting of polyols of fatty acid esters, polyols of modified fatty acid esters, polyols of fatty alcohols, polyols of modified fatty alcohols, polycarbonate polyols, polybutadiene polyols and polyacrylate polyols; Even more preferably, the polyol is selected from the group consisting of polyols of fatty acid esters, polyols of fatty alcohols, polyols of dimer fatty alcohols, polyols of trimer fatty alcohols, polycarbonate polyols, polybutadiene polyols and polyacrylate polyols; Even more preferably, it is selected from the group consisting of polyether polyols, polyester polyols, polyols of fatty acid esters, polyols of fatty alcohols, polyols of dimer fatty alcohols, polycarbonate polyols, polybutadiene polyols and polyacrylate polyols; Even more preferably, it is selected from the group consisting of polyether polyols, polyester polyols, polyols of fatty acid esters, polyols of fatty alcohols, polycarbonate polyols, polybutadiene polyols and polyacrylate polyols; Most preferably, it is selected from the group consisting of polyether polyols.

[0097] The fatty acid esters, fatty alcohols, dimer fatty alcohols and trimer fatty alcohols, independently of one another, may be modified or unmodified.

[0098] The fatty acid ester polyol is preferably 14 ~C 22 Polyol of fatty acid ester, preferably C 16 ~C 18 Polyols of fatty acid esters, more preferably C 16 ~C 18 Polyols of fatty acid esters, most preferably C 18 The polyol is selected from the group consisting of fatty acid ester polyols.

[0099] The fatty alcohol polyol is preferably 14 ~C 22 Polyols of fatty alcohols, preferably C 16 ~C 18 Polyols of fatty alcohols, more preferably C 16 ~C 18 Polyols of fatty alcohols, most preferably C 18 The polyol is selected from the group consisting of fatty alcohols and polyols.

[0100] The dimer fatty alcohol polyol is preferably a dimer C 14 ~C 22Polyols of fatty alcohols, preferably dimers C 16 ~C 18 Polyols of fatty alcohols, more preferably dimers C 16 ~C 18 Polyols of fatty alcohols, most preferably dimers C 18 The polyol is selected from the group consisting of fatty alcohols and polyols.

[0101] The polyol of the trimer fatty alcohol is preferably a trimer C 14 ~C 22 Polyols of fatty alcohols, preferably trimer C 16 ~C 18 Polyols of fatty alcohols, more preferably trimers C 16 ~C 18 Polyols of fatty alcohols, most preferably trimer C 18 The polyol is selected from the group consisting of fatty alcohols and polyols.

[0102] Fatty alcohol denotes an alcohol derived from its corresponding fatty acid ester, i.e. an alcohol which can be obtained from its corresponding fatty acid ester, for example, by ester hydrolysis and (chemical) reduction of the free carboxyl group to a (primary) hydroxy group, or alternatively an alcohol which can be obtained, for example, by direct (chemical) reduction to the corresponding fatty alcohol and other (ester) alcohols, such as, for example, glycerol (from fatty acid glycerides) or methanol (from fatty acid methyl esters).

[0103] Dimeric fatty alcohol refers to fatty alcohol obtained from the (formal) dimerization of two fatty alcohols.In practice, dimeric fatty alcohol can be obtained from the dimerization of two unsaturated fatty acid ester molecules, for example, by the reaction between the CC-double bond in one unsaturated fatty acid ester molecule and the CC-double bond of another unsaturated fatty acid ester molecule, for example, by olefin metathesis reaction followed by ester hydrolysis and reduction of the free carboxyl group to a (primary) hydroxyl group or by direct reduction of the ester group to a (primary) hydroxyl group.

[0104] The same applies mutatis mutandis to trimer fatty alcohols.

[0105] dimer C 14 ~C 22 , dimer C 16 ~C 18 , dimer C 16 ~C 18 or dimer C 18 Each fatty alcohol consists of a dimer, i.e., two C 14 ~C 22 Fatty alcohol moiety, two C 16 ~C 18 Fatty alcohol moiety, two C 16 ~C 18 Fatty alcohol moiety or two C 18 Refers to a fatty alcohol having a fatty alcohol moiety; for example, the dimer C 18 Fatty alcohols are two C alkyl groups covalently bonded to each other in a single molecule. 18 The same applies mutatis mutandis to trimer fatty alcohols.

[0106] The dimer fatty alcohol polyol is preferably a dimer C 14 ~C 22 Polyols of fatty alcohols, preferably dimers C 16 ~C 18 Polyols of fatty alcohols, more preferably dimers C 16 ~C 18 Polyols of fatty alcohols, most preferably dimers C 18 The polyol is selected from the group consisting of fatty alcohols and polyols.

[0107] Modified fatty acid esters are fatty acid esters in which one or more CC-double bonds have undergone a chemical reaction, such as, in particular, epoxidation, or epoxidation followed by cleavage of the epoxide by acid or base catalyzed hydrolysis, or epoxidation followed by catalytic ring opening to give dihydroxydiether moieties in the presence of a diol, such as diethylene glycol, or hydroformylation. The same applies mutatis mutandis to modified fatty alcohols, modified dimer fatty alcohols and modified trimer fatty alcohols.

[0108] Fatty acid esters as used herein are usually, and in fact are, naturally occurring fatty acid esters, such as glycerol esters of fatty acids, such as castor oil, etc. Preferred as fatty acid esters in the present invention are unsaturated fatty acid esters having at least one CC-double bond, in particular to constitute dimeric fatty alcohols and modified fatty esters.

[0109] Preferred fatty acid ester polyols are selected from glycerol esters of castor oil and other hydroxylated fatty acids. Related materials that can be used include hydrogenated castor oil, glycerol monoricinoleate, glycerol diricinoleate, and blown drying oils such as blown soybean oil, tung oil, poppy seed oil, hemp seed oil or linseed oil, and the partial esters of glycerol with blown drying oil fatty acids.

[0110] The preferred modified fatty acid ester polyol is selected from modified castor oil, for example castor oil blended with ketone resin.Modified castor oil is obtained, for example, by subjecting one or more CC-double bonds of castor oil to chemical reactions, such as epoxidation, or epoxidation followed by epoxide cleavage by acid or base catalyzed hydrolysis, or epoxidation followed by catalytic ring opening to give dihydroxydiether moieties in the presence of diol, for example diethylene glycol, or hydroformylation, or by blending with ketone resin.

[0111] The polyol of the present invention usually has 2 to 6 free hydroxy groups, preferably 2 to 4 free hydroxy groups, and more preferably 2 or 3 free hydroxy groups.

[0112] When the polyol is a polyether polyol, the polyether polyol is preferably selected from the group consisting of polyethylene oxide polyols (poly(ethylene oxide) polyols), polypropylene oxide polyols (poly(propylene oxide) polyols) and polybutylene oxide polyols (poly(butylene oxide) polyols). Preferably, the polyol is a polyether polyol selected from the group consisting of polyethylene oxide polyols, polypropylene oxide polyols and polybutylene oxide polyols, and has 2 to 6 free hydroxy groups.

[0113] In a further aspect, the polyol forming the prepolymer is a polyether polyol selected from the group consisting of polyethylene oxide polyol, polypropylene oxide polyol, and polybutylene oxide polyol. The polypropylene polyol can be poly-1,2-propylene oxide (poly(1,2-propylene oxide)) or poly-1,3-propylene oxide (poly(1,3-propylene oxide)) polyol. The polybutylene oxide polyol can be selected from the group consisting of poly-1,2-butylene oxide polyol (poly(1,2-butylene oxide) polyol), poly-1,3-butylene oxide polyol (poly(1,3-butylene oxide) polyol), and poly-1,4-butylene oxide polyol (poly(1,4-butylene oxide) polyol) (also called "poly-THF"), and is preferably poly-1,4-butylene oxide polyol ("poly-THF").

[0114] The polyol can have from 2 to 6 free hydroxy groups, preferably from 2 to 4 free hydroxy groups, and more preferably 2 or 3 free hydroxy groups.

[0115] The above mentioned polyols may have 4-150, preferably 4-100, more preferably 4-75, and most preferably 9-75 repeating units.

[0116] In one embodiment, the polyol is selected from polyethylene glycols having 4 to 150, preferably 4 to 100, more preferably 4 to 75, and most preferably 9 to 75 repeating units.

[0117] Chain extenders are often additionally used in the formation of the prepolymer. Thus, in the formation of the prepolymer from the polyol and the polyisocyanate, advantageously, at least one chain extender is additionally used, more preferably one or two different chain extenders, most preferably one single chain extender. The preferred chain extenders are C 2 ~C 10 It is selected from the group consisting of alkyl polyols, more preferably 1,2-ethanediol (ethylene glycol), 1,3-propanediol, 1,4-butanediol, 1,3-butanediol, 1,5-pentanediol, 1,6-hexanediol, 2-ethylhexane-1,3-diol, 2,4,4-trimethylhexane-1,6-diol, 2,2,4-trimethylhexane-1,6-diol, 2-ethyl-hexane-1,3-diol, 1,10-decanediol, 2,2-dimethyl-1,3-propanediol, 2-methyl-1,3-propanediol, 1,2-propanediol, 3-methyl-1,5-pentanediol, dialkylene ether glycols such as diethylene glycol and dipropylene glycol.

[0118] The chain extender preferably has 2 to 6, more preferably 2 to 4, even more preferably 2 or 3 free hydroxy groups, and most preferably 2 free hydroxy groups.

[0119] The second composition of the invention (also called the "hardener" or "part A" in a 2K system; the 2K system is also called the "two-component system" since it comprises the composition of the invention and the second composition of the invention) can also contain, in addition to water, a polyol, for example a polyol selected from the group consisting of: (1) Glycerol esters of castor oil and other hydroxylated fatty acids, or fatty alcohol dimers and / or trimers. Useful related materials include hydrogenated castor oil, glycerol monoricinoleate, glycerin diricinoleate, and blown drying oils, such as blown soybean oil, tung oil, poppy seed oil, hemp seed oil, or linseed oil, and the partial esters of glycerol with blown drying oil fatty acids. (2) polyester polyols prepared by copolymerizing low molecular weight polyols and polycarboxylic acids. These materials are prepared by reacting mixtures containing polycarboxylic acids and polyols in ratios such that there is a stoichiometric excess of polyol to ensure that the resulting polyester has terminal hydroxyl groups that predominate over terminal carboxyl groups, preferably the low molecular weight polyols being primarily diols, such as mono-, di- or tri-ethylene or propylene glycol, 1,4-butanediol and diethanolamine. Advantageously, small amounts of triols such as glycerol, hexanetriol, trimethylolethane or trimethylolpropane may be included. Suitable acids include adipic acid, succinic acid, maleic acid, isophthalic acid and terephthalic acid. (3) Polyalkylene glycols such as polyethylene glycol, polypropylene glycol, or a mixture of polyethylene-polypropylene glycol, and polytetramethylene glycol (poly-THF). (4) An isocyanate-modified polyol obtained by reacting the isocyanate and the polyol in excess of the theoretical amount. (5) Polyols derived from dimer fatty alcohols obtained by hydrogenation of dimer fatty acids. Preferred dimer fatty acids are 10 ~C 30 , more preferably C 12~C 25 , especially C 14 ~C 22 It is a dimer of fatty acid. Suitable dimeric fatty acids include the dimerization products of oleic acid, linoleic acid, linolenic acid, palmitoleic acid and elaidic acid. The dimerization products of unsaturated fatty acid mixtures obtained by hydrolysis of natural fats and oils, such as sunflower oil, soybean oil, olive oil, rapeseed oil, cottonseed oil and tall oil, can also be used. Glycerol esters of castor oil and other hydroxyl-functionalized fatty acids are preferred components of the curing agent, as they facilitate the mixing and uniform incorporation of the curing agent into the isocyanate composition and improve the uniform compatibility and flowability of the mixture. (6) Polyols as defined above for the prepolymers (used in "Part B" of the 1K or 2K systems). (7) C 2 ~C 10 alkyl polyols, more preferably C 2 ~C 8 and even more preferably selected from the group consisting of alkyl polyols. 2 ~C 6or selected from the group consisting of alkyl polyols, 1,2-ethanediol (ethylene glycol), 1,3-propanediol, 1,4-butanediol, 1,3-butanediol, 1,5-pentanediol, 1,6-hexanediol, 2-ethylhexane-1,3-diol, 2,4,4-trimethylhexane-1,6-diol, 2,2,4-trimethylhexane-1,6-diol, 2-ethyl-hexane-1,3-diol, 1,10-decanediol, 2,2-dimethyl-1,3-propanediol, 2-methyl-1,3-propanediol, 1,2-propanediol, short-chain polyols selected from the group consisting of glycerol, 3-methyl-1,5-pentanediol, dialkylene ether glycols such as diethylene glycol and dipropylene glycol, glycerol (1,2,3-propanetriol), sugar alcohols such as erythritol, threitol, 2,2-bis(hydroxymethyl)1,3-propanediol (pentaerythritol), arabitol, xylitol, ribitol, mannitol, sorbitol, galactitol, fucitol, iditol, inositol, and volemitol, and trimethylolpropane. The short-chain polyol preferably has 2 to 6, more preferably 2 to 4, and most preferably 2 or 3 free hydroxyl groups.

[0120] The second composition preferably comprises water and a polyol as defined in item (6) above, i.e. as defined herein for the prepolymer. In a further embodiment, the second composition comprises water, a short chain polyol as defined in item (7) above, and a polyol selected from the group consisting of items (1) to (6) above, preferably selected from item (6) above.

[0121] water Water may be introduced into the system by applying at least one of the additives of the present invention. An additional amount of water may be part of the second composition of the present invention.

[0122] When only the first composition is used (1K system), it is sufficient for the water to be present in the form of ambient moisture. Ambient moisture refers to the moisture content in an ambient atmosphere at 20° C. and a relative humidity (rel.H.) of at least 25%. The composition according to the invention (first composition; part B; 1K system) may contain water in an amount of 0 wt.% to 6 wt.%, preferably 0 wt.% to 5 wt.%, more preferably 0 wt.% to 4 wt.%, even more preferably 0 wt.% to 3.6 wt.%, even more preferably 0 wt.% to 3.5 wt.%, even more preferably 0 wt.% to 3 wt.%, and most preferably 0 wt.% to 2.5 wt.%, based on the total weight of the composition.

[0123] Thereby, the amount of water present in a two-component coating composition (2K system; the composition of the invention (Part B) as one component and the second composition of the invention (Part A) as the other component) may be in the range of 1 wt.% to 50 wt.%, preferably in the range of 5 wt.% to 40 wt.%, more preferably in the range of 10 wt.% to 40 wt.%, even more preferably in the range of 15 wt.% to 30 wt.%, most preferably in the range of 20 wt.% to 30 wt.%, based on the total weight of the two-component composition. Alternatively, the amount of water present in said two-component coating composition may be in the range of 0.1 wt.% to 50 wt.%, preferably in the range of 0.5 wt.% to 30 wt.%, more preferably in the range of 0.5 wt.% to 20 wt.%, most preferably in the range of 1 wt.% to 10 wt.%, based on the total weight of the two-component composition.

[0124] Further ingredients It will be readily understood that depending on the particular coating application, it may be necessary to add further components to the compositions according to the present invention.

[0125] Thus, the composition according to the invention may further comprise at least one low-volatility organic liquid, preferably at least one low-volatility organic liquid having a boiling point of 250° C. or higher, more preferably at least one low-volatility organic liquid having a boiling point of 250° C. or higher and selected from the group consisting of plasticizers, flame retardants, monomethacrylates and polymethacrylates.

[0126] The plasticizer is preferably selected from the group consisting of phthalates and adipates, more preferably phthalates such as dialkyl phthalates.

[0127] The flame retardant is preferably selected from the group consisting of phosphate esters. Suitable flame retardants include, for example, triclesy phosphate, tris(2-chloroethyl) phosphate, tris(2-chloropropyl) phosphate, tris(1,3-dichloropropyl) phosphate, tris(2,3-dibromopropyl) phosphate, and tetrakis(2-chloroethyl)ethylene diphosphate.

[0128] The polymethacrylate is selected from the group consisting of dimethacrylates, preferably polyether dimethacrylates, and most preferably alkyl dimethacrylates.

[0129] The composition according to the invention may further comprise at least one inorganic compound selected from the group consisting of mica, talc, precipitated silica and fumed silica.

[0130] The composition according to the present invention may further comprise one or more catalysts for catalyzing the isocyanate water reaction, preferably selected from the group consisting of organotin compounds, bismuth carboxylates, zinc carboxylates, trialkylamines and alkylimidazoles, more preferably bisdialkylaminoethyl ethers, most preferably 2,2'-dimorpholinyl diethyl ether (DMDEE).

[0131] In another embodiment, the catalyst is selected from the group consisting of amines, alkanolamines and metal catalysts, preferably tertiary aliphatic amines. The tertiary aliphatic amine catalyst further includes triethylenediamine, pentamethyldiethylenetriamine, dimethylcyclohexylamine, 2,2'-dimorpholinodiethyl ether, 2-(2-dimethyl-aminoethoxy)ethanol, 2-dimethylaminoethyl 3-dimethylaminopropyl ether, bis(2-dimethylaminoethyl)ether, N,N-dimethylpiperazine, N-(2-hydroxyethoxyethyl)-2-aza-norborane, Jeffcat TM , N,N,N,N-tetramethylbutane-1,3-diamine, N,N,N,N-tetra-methylpropane-1,3-diamine and N,N,N,N-tetramethylhexane-1,6-diamine, preferably 2,2'-dimorpholinodiethyl ether.

[0132] The alkanolamine catalyst may be selected from the group consisting of dimethylethanolamine, triethanolamine, and mixtures thereof.

[0133] The metal catalyst may be selected from the group consisting of mercury, lead, tin, bismuth, potassium, lithium, titanium, zirconium and zinc catalysts, and mixtures thereof, and may further be selected from the group consisting of dibutyltin dilaurate (DBTL), stannous octoate, potassium octoate, bismuth neodecanoate and zinc neodecanoate, and mixtures thereof.

[0134] In a preferred embodiment, the amount of catalyst is from 0.05 wt.% to 5.0 wt.%, preferably from 0.1 wt.% to 5.0 wt.%, based on the total weight of the composition.

[0135] The composition according to the invention may further comprise at least one component selected from the group consisting of inorganic pigments, organic pigments and dyes, preferably inorganic pigments and organic pigments, most preferably inorganic pigments.

[0136] The term "pigment" should be understood to mean a white or colored mineral or organic particle intended to color and / or opacify the composition containing it. The pigments may be white or colored and may be mineral and / or organic. Suitable mineral pigments include, but are not limited to, titanium oxide, titanium dioxide, zirconium oxide, zirconium dioxide, cerium oxide, cerium dioxide, zinc oxide, iron oxide, chromium oxide, ferric blue, manganese violet, ultramarine blue and chromium hydrate, and mixtures thereof. Examples of commercially available pigments are Bayferrox® from Lanxess, Germany and Heucosin® from Heubach.

[0137] The compositions of the present invention may also need to optionally include a rheology modifier, which may be selected from the group consisting of hydrous magnesium silicate, hydrophobic pyrogenic silica, ground barium sulfate (baryte), bentonite, layered double hydroxides, PVC, polyvinyl butyral, substituted ureas and / or oligomeric ureas (e.g., BYK7410), and amides.

[0138] The compositions of the present invention may also optionally need to include an antifoaming agent, if necessary, in their formulation.

[0139] The use of the composition according to the invention for making a coating also preferably relates to chemically capturing a sufficient amount of carbon dioxide released from the reacting polyisocyanate and / or prepolymer by forming metal bicarbonates and / or carbonates in the composition, said amount of captured carbon dioxide being sufficient to prevent foaming of the coating.

[0140] Similarly, the process according to the invention for producing a coating on a surface preferably further comprises the step of chemically capturing a sufficient amount of carbon dioxide released from the reacting polyisocyanate and / or prepolymer by forming bicarbonate and / or carbonate salts of metals in the composition, said amount of captured carbon dioxide being sufficient to prevent foaming of the coating.

[0141] The composition according to the invention is preferably used to make a sealant (usually a single layer coating) or coating in an application selected from flooring and waterproofing. The overall coating can consist of one, two, three or more layers, preferably one or two layers, i.e. one, two, three or more coating layers can be applied on each substrate (e.g. concrete or screed). A typical one-layer coating can be used as a sealant. A typical two-layer coating, especially in flooring applications, can consist of a base coat or scratch coat applied to the substrate, followed by a top coat or body coat applied on top of the base coat or scratch coat. A primer may also be applied to the substrate (e.g. concrete or screed) before coating, i.e. before the composition according to the invention is applied.

[0142] The thickness of a coating or coating layer according to the invention, especially as a topcoat or sealing, may be at least 0.05 mm, preferably at least 0.08 mm, more preferably at least 0.09 mm, most preferably at least 0.1 mm. The thickness of a coating or coating layer according to the invention, especially as a topcoat or sealing, may be 2.0 mm or less, preferably 1.5 mm or less, more preferably 1.0 mm or less, even more preferably 0.5 mm or less, most preferably 0.3 mm or less. Thus, the thickness of a coating layer, especially as a topcoat or sealing, may be in the range of 0.05 mm to 2.0 mm, preferably 0.08 mm to 1.5 mm, more preferably 0.09 mm to 1.0 mm, even more preferably 0.1 mm to 0.5 mm, most preferably 0.05 mm to 0.3 mm or 0.1 mm to 0.3 mm.

[0143] The total thickness of the coating (including all coating layers if the monolayer is not applied alone) may be at least 0.3 mm, preferably at least 1 mm, more preferably at least 2 mm. The total thickness of the coating (including all coating layers if the monolayer is not applied alone) may be 20 mm or less, preferably 15 mm or less, more preferably 10 mm or less, even more preferably 5 mm or less, even more preferably 3 mm or less, and most preferably 2 mm or less. Thus, the total thickness of the coating (including all coating layers if the monolayer is not applied alone) may be in the range of 0.3 mm to 20 mm, preferably 0.3 mm to 15 mm, more preferably 0.3 mm to 10 mm or 1 mm to 10 mm, even more preferably 0.3 mm to 5 mm or 1 mm to 5 mm, even more preferably 0.3 mm to 3 mm or 1 mm to 3 mm, and most preferably 0.3 mm to 2 mm or 1 mm to 2 mm.

[0144] The composition, the binary composition or the coating according to the invention is preferably substantially free of any fibers, fiber reinforcement and / or fibrous reinforcement, more preferably is substantially free of any fibers, fiber reinforcement and / or fibrous reinforcement. "Substantially free" in this context means that the amount of any fibers, fiber reinforcement and / or fibrous reinforcement is less than 1 wt.%, preferably less than 0.1 wt.%, more preferably less than 0.01 wt.%, most preferably less than 0.001 wt.%, based on the total weight of the composition, the binary composition or the coating, respectively. EXAMPLES

[0145] Materials used and their suppliers: Dispersion medium: Palatinol® N (BASF) - diisononyl phthalate Calcium oxide: finely ground white quicklime, calcined or based on natural limestone (sieve analysis: mesh 0.045 mm, residue 0.2%)

[0146] Aliphatic isocyanates: Desmodur® N3600 - Low viscosity HDI trimer Vestat® H12-MDI (Evonik)

[0147] Aromatic isocyanates: Lupranat® M20S (BASF) - Contains highly functional oligomers and isomers (average functionality 2.7), 4,4'-diphenylmethane diisocyanate (MDI) Lupranat® MI (BASF) - a mixture of 2,4'- and 4,4'-diphenylmethane diisocyanate (MDI)

[0148] Isocyanate Prepolymers - Procedure for the preparation of isocyanates in the form of prepolymers based on H12MDI for Examples 24 and 25: 220 g of Vestanat® H12-MDI and 379.5 g of Acclaim® 4200 are heated to 40° C. in an oil bath with stirring. The oil bath is removed and 0.5 g of DOTL is added. When the temperature in the flask no longer increases, the mixture is heated to 60-70° C. with stirring until the target NCO value (9.5-10.3%) is reached (approximately 2 hours).

[0149] Polyol: Acclaim® Polyol 4200 (Covestro) - Polypropylene glycol Arcol® Polyol 1104 (Covestro) - Trifunctional Polyether Polyol

[0150] Rheology Modifiers: Microtalc IT extra (Elementis) - Hydrated magnesium silicate Aerosil® R202 (Evonik) - hydrophobic pyrogenic silica "Barytmehl N" (Sachtleben Minerals) - ground natural barium sulfate (baryte), d50 3μm Defoamer: BYK-088 (Byk)

[0151] Additives (surface modification): Cublen® R60 (Zschimmer & Schwarz) - a 60 wt.% aqueous solution (equivalent to 40 wt.% water) of a mixture of [[(hydroxyethyl)imino]bis(methylene)]bisphosphonic acid and P-[(tetrahydro-2-hydroxy-2-oxido-4H-1,4,2-oxazaphosphorin-4-yl)methyl]phosphonic acid (HEMPA); Melment® F15 (BASF) - melamine sulfonic acid condensate, spray-dried; Sokalan® PA25CL (BASF) - polyacrylic acid (approximately 4000 g / mol); TRISIZE 68 (TRIGON Chemie) - Mixture of dihydro-3-(octadecenyl)furan-2,5-dione and dihydro-3-(hexadecenyl)furan-2,5-dione (as carboxylic anhydrides); The following formula A [ka] (Wherein, R is H or CH 3 and H / CH 3 = 3:1 (random), n is 35, m is 6, and M is H and / or Na). modified imino-bis(methylphosphonic acid) (partially neutralized solution of about pH 4), about 55 wt.% thereof in water (equivalent to about 45 wt.% water); HDTMPA (Sigma-Aldrich) - diethylenetriamine-pentakis-(methylphosphonic acid), 50 wt.% aqueous solution (equivalent to 50 wt.% water); 4,5-Dihydroxybenzene-1,3-disulfonic acid disodium salt (Sigma-Aldrich); Aniline-2,5-disulfonic acid (Alfa-Aesar); Gluconic acid (Merck); Lysine (Merck-Sigma-Aldrich); glutamic acid (Merck-Sigma-Aldrich); adipic acid (Merck-Sigma-Aldrich); Dynasylan® GLYMO (Evonik)-(3-glycidyloxypropyl)trimethoxysilane; Ethylene glycol (Bernd Kraft); PeCeFlux® 2500L / 45% ND (MBCC Group) - A 45 wt.% solution of polycarboxylic acid ether (PCE) in water (equivalent to 55 wt.% water).

[0152] Procedures for preparing compositions containing isocyanates of Comparative Examples 1 and 2 and Examples 1 to 23: Calcium oxide is dispersed in Palatinol® N (BASF), no additives or the corresponding additives or additive mixtures are added, and dispersed in a Speedmixer (30s, 3500 rpm). In some cases, after 1 hour, a rheology modifier is added, dispersed (Speedmixer, 1 min, 3500 rpm), and left for 15 minutes. The dispersion is mixed with the isocyanate component in a Speedmixer (1 min, 3500 rpm).

[0153] Procedure for preparing compositions containing isocyanates of Examples 24 and 25: Calcium oxide is dispersed in Palatinol® N (BASF), the respective additives (Example 24: Cublen® R60 (HEMPA); Example 25: TRISIZE 68) are added and dispersed in a Speedmixer (30 s, 3500 rpm). 32.7 g of the resulting dispersion is mixed with 67.3 g of isocyanate prepolymer (prepared as above) in a Speedmixer (1 min, 3500 rpm).

[0154] [Table 1]

[0155] [Table 2]

[0156] [Table 3]

[0157] [Table 4]

[0158] [Table 5]

[0159] [Table 6]

[0160] Storage stability test: Part B (isocyanate-containing composition) is stored at 40° C. After 1 day, 14 days, and 28 days, the storage stability is checked. If no significant increase in viscosity is observed, tested by manual stirring with a spatula, and the sediment is easily redispersible, Part B is called storage stable. If the CaO sediment is not redispersible or the viscosity increases significantly, the sample is no longer stable.

[0161] The viscosity is measured after 1 minute at 50 1 / s using a Rheometer (Anton Paar).

[0162] [Table 7]

[0163] [Table 8]

[0164] [Table 9]

[0165] [Table 10]

[0166] [Table 11]

[0167] [Table 12]

[0168] Reactivity Testing: Reactivity tests show that CaO is still fully reactive with water and that Ca(OH) 2 and then CO formed by the reaction of isocyanate with water. 2 For this purpose, mixtures of part A and various forms of part B are poured onto a plate and examined for foaming.

[0169] Preparation of Part A reactive towards isocyanate-containing composition (Part B): Mix 20.7 g of water with 2.6 g of PeCeFlux® 2500L / 45% ND, 22.6 g of ethylene glycol and 4.8 g of ground Baryte N. Add 45.9 g of Arcol® Polyol 1104 and 2.4 g of BYK-088 and mix thoroughly.

[0170] Preparation of Part B (isocyanate-containing composition): Calcium oxide (29.5 g) is dispersed in Palatinol® N (14.4 g) and no additive is added or the corresponding additive is added (Melment® F15 (1.33 g), or Cublen® R60 (HEMPA) (0.21 g) or (0.44 g), or a mixture of Trisize 68 (1.48 g) and Dynasylan® GLYMO (0.35 g)). After 1 hour, the dispersion is mixed with Lupranat® M20S (65.4 g).

[0171] Mixture of Part A (PTA) and Part B (PTB): Depending on the type of CaO modification, add part A to part B in the ratio listed in the table below and mix thoroughly in a speed mixer at 3500 rpm for 1 minute. Then pour 65 g of the mixture onto a plate (diameter 20 cm (Jokey)). Visually inspect the surface after curing for a smooth surface or a rough and uneven surface with waves and / or air bubbles indicating foaming. If foaming is present, increase the amount of CaO by 5% in percentage (weight ratio of CaO [g] / isocyanate [g]) until foaming is no longer observed; this final amount of CaO % where foaming is no longer observed is listed in the last column of the table below.

[0172] [Table 13]

Claims

1. A composition, (a) at least one polyisocyanate, (b) Particles of at least one basic metal compound independently selected from the group consisting of basic metal oxide compounds and basic metal hydroxide compounds, (c) at least one first additive which is a chelating agent comprising at least two functional groups that can bond to the cation of the metal, A composition containing the following:

2. The at least one polyisocyanate is (a.1) Having 2 to 6 free isocyanate groups and / or, (a.2) A polyisocyanate independently selected from the group consisting of aliphatic and aromatic polyisocyanates, The composition according to claim 1.

3. The composition according to claim 1 or 2, wherein the at least one polyisocyanate is a prepolymer formed from at least one polyol and at least one polyisocyanate.

4. The at least one polyol is (i) A polyol independently selected from the group consisting of polyether polyols, polyester polyols, fatty acid ester polyols, modified fatty acid ester polyols, fatty alcohol polyols, modified fatty alcohol polyols, dimeric fatty alcohol polyols, dimeric modified fatty alcohol polyols, trimer fatty alcohol polyols, trimer modified fatty alcohol polyols, polycarbonate polyols, polybutadiene polyols, and polyacrylate polyols, and / or (ii) Having 2 to 6 free hydroxyl groups, (iii) optionally comprising at least one further polyol which is a chain extender having 2 to 6 free hydroxyl groups, The composition according to claim 3.

5. The at least one polyol is (i) independently selected from the group consisting of polyether polyols, polyester polyols, polycarbonate polyols, polybutadiene polyols and polyacrylate polyols, and / or (ii) Having 2 to 6 free hydroxyl groups and / or, (iii) Having 4 to 150 repeating units, The composition according to claim 4.

6. The at least one polyol is (i) A polyether polyol independently selected from the group consisting of polyethylene oxide polyol, polypropylene oxide polyol, and polybutylene oxide polyol, and / or (ii) Having 2 to 6 free hydroxyl groups and / or, (iii) Having 4 to 150 repeating units, The composition according to claim 4.

7. The composition according to claim 1 or 2, wherein the metal of the at least one basic metal compound is independently selected from the group consisting of alkali metals, alkaline earth metals, metals of the second transition metal group, and metals of the third transition metal group.

8. The composition according to claim 1 or 2, wherein the metal of the at least one basic metal compound is independently selected from the group consisting of alkaline earth metals.

9. The composition according to claim 1 or 2, wherein the at least one basic metal compound comprises cement.

10. The at least one chelating agent is (i) comprising an acid group and at least one functional group independently selected from the group consisting of the corresponding acid anion, salt, amide, acid anhydride and ester, and optionally, (ii) containing at least one sterically hindering group, The composition according to claim 1 or 2.

11. (i) The at least one functional group is independently selected from the group consisting of carboxylic acids, sulfonic acids, phosphonic acids and phosphoric acids, their corresponding acid anions and salts, carboxamides, carboxylic acid esters, and carboxylic acid anhydrides, and / or (ii) The at least one sterically hindered group is C ４ ~C １００ - Hydrocarbon tail and / or polyether, preferably C ４ ~C ２２ - Hydrocarbon tail and polyether, more preferably C ６ ~C １８ - Independently selected from the group consisting of polyethers having a hydrocarbon tail and 3 to 60 repeating units, The composition according to claim 10.

12. The chain between the functional groups that bind to the metal cation is C ２ to C １０ -hydrocarbon backbone, and at least one methylene group of the C ２ to C １０ -hydrocarbon backbone is optionally (i) Substituted with a heteroatom independently selected from the group consisting of N, P, O, and S, (ii) Having an acid group and a functional group independently selected from the group consisting of the corresponding acid anion, salt, amide, acid anhydride and ester, and amino and hydroxyl groups, The composition according to claim 1 or 2.

13. (d) at least one second additive independently selected from the group consisting of alkoxysilanes, The composition according to claim 1 or 2, further comprising:

14. The aforementioned alkoxysilane is of the formula Si(O-X) ｍ Y ｎ Z ４－ｍ＋ｎ (In the formula, X is C １ ~C ６ - Alkyl alkyl group, preferably C １ ~C ３ - Alkyl alkyl group, most preferably methyl, Y is C １ ~C ２０ - Alkyl or C ５ ~C １０ - It is an aryl group, Z optionally has a functional group, C １ ~C ６ - It is an alkyl group, m is an integer from 1 to 4, preferably m is 3, and n is an integer between 0 and 3. The composition according to claim 13, having the following characteristics.

15. The composition according to claim 1 or 2, further comprising at least one low-volatile organic liquid, preferably at least one low-volatile organic liquid having a boiling point of 250°C or higher, and more preferably at least one low-volatile organic liquid having a boiling point of 250°C or higher and independently selected from the group consisting of plasticizers, flame retardants, monomethacrylates, and polymethacrylates.

16. (i) The plasticizer is selected from the group consisting of phthalates and adipates, preferably phthalates, and / or (ii) The flame retardant is selected from the group consisting of phosphate esters and / or (iii) The polymethacrylate is selected from the group consisting of dimethacrylate, preferably polyether dimethacrylate, and most preferably alkyl dimethacrylate. The composition according to claim 15.

17. The composition according to claim 1 or 2, further comprising at least one inorganic compound independently selected from the group consisting of mica, talc, precipitated silica, and fumed silica.

18. The composition according to claim 1 or 2, further comprising at least one catalyst for catalyzing an isocyanate water reaction, preferably independently selected from the group consisting of organotin compounds, bismuth carboxylate, zinc carboxylate, trialkylamine and alkylimidazole, more preferably bis-dialkylaminoethyl ether, and most preferably 2,2'-dimorpholinyl diethyl ether.

19. The composition according to claim 1 or 2, further comprising at least one component independently selected from the group consisting of inorganic pigments, organic pigments and dyes, preferably inorganic pigments and organic pigments, most preferably inorganic pigments.

20. A kit comprising the composition according to claim 1, and a second composition which is a liquid containing water for reaction with at least one polyisocyanate and / or prepolymer, and optionally for reaction with at least one basic metal compound.

21. The kit according to claim 20, wherein the second composition further comprises at least one polyol.

22. Use of the composition according to claim 1 or 2 for creating a coating by reaction with ambient moisture.

23. Use of the composition according to claim 1 or 2 for creating a coating after mixing the aforementioned composition with the second composition according to claim 20 or 21.

24. The use according to claim 20 or 21, wherein a sufficient amount of carbon dioxide released from the reacting at least one polyisocyanate and / or prepolymer is chemically captured by forming a bicarbonate and / or carbonate of at least one metal in the composition, and the amount of captured carbon dioxide is sufficient to prevent foaming of the coating.

25. A process for creating a coating on a surface, consisting of the following steps: (i) To provide the composition according to claim 1 or 2, (ii) To allow the presence of ambient moisture, (iii) Applying the composition to the surface, (iv) The composition applied in step (iii) above is cured while in contact with the surrounding moisture. A process that includes this.

26. A process for creating a coating on a surface, consisting of the following steps: (i) To provide the first composition according to claim 1 or 2, (ii) To provide the second composition according to claim 20 or 21, (iii) Mixing the first and second compositions, (iv) Applying the mixture obtained in step (iii) onto the surface, (v) Curing the mixture applied in step (iv) above. A process that includes this.

27. The process according to claim 25, further comprising the step of chemically capturing a sufficient amount of carbon dioxide released from the reacting at least one polyisocyanate and / or prepolymer by forming a bicarbonate and / or carbonate of at least one metal in the composition, wherein the amount of carbon dioxide captured is sufficient to prevent foaming of the coating.

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