Tris(alkoxycarbonylamino)triazine composition, paint composition containing the same, and method for producing the same

Abstract

To provide a tris (alkoxycarbonylamino) triazine composition, a coating composition comprising the same, and a manufacturing method thereof.SOLUTION: A tris (alkoxycarbonylamino) triazine (TACT) composition according to the present invention comprises TACT and dibutyl carbonate (DBC), wherein the DBC constitutes 2 to 11 wt.% of the total weight of the composition. Through the use of a coating composition comprising the inventive composition, a coating film surface of a coated object can have excellent film surface appearance.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a tris(alkoxycarbonylamino)triazine (TACT) composition, a coating composition containing the same, and a method for producing the same. The tris(alkoxycarbonylamino)triazine composition can be used as a crosslinking agent, particularly as a crosslinking agent in a coating composition.

Background Art

[0002] Tris(alkoxycarbonylamino)triazine (TACT) is a trifunctional melamine-based crosslinking agent containing reactive carbamate functional groups and can be used as a crosslinking agent for aqueous coatings and solvent-based coatings. Further, a coating composition containing TACT does not release formaldehyde during the curing process and can also impart good hardness and chemical resistance to the coated surface of the object to be coated. Therefore, coating compositions containing TACT are widely used in the coating field.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The inventor of the present application has discovered through various experiments that the production of dibutyl carbonate (DBC), which is a by-product, is involved in the preparation process of the TACT coating composition. Furthermore, through research, the inventor has discovered that whether the content of the by-product is too high or too low, it will cause adverse effects such as the formation of pinholes and sagging on the coated surface of the object to be coated with the TACT coating composition, significantly reducing the aesthetic appearance of the coated surface of the object to be coated.

[0004] The inventors of this application have discovered through numerous experiments that controlling the DBC content in the TACT coating composition between 2 and 11 wt% is effective in preventing DBC, a by-product in the TACT coating composition, from affecting the appearance of the coating surface of the object being coated. This effectively provides the object coated with the coating composition with an excellent coating surface appearance. [Means for solving the problem]

[0005] Therefore, the present invention aims to provide a tris(alkoxycarbonylamino)triazine (TACT) composition, which comprises TACT and dibutyl carbonate (DBC), of which DBC accounts for 2 to 11 wt% of the total weight of the composition.

[0006] In one or more examples, DBC accounts for 3 to 8 wt% of the total weight of the composition.

[0007] In one or more examples, TACT has the structure shown in the following structural formula (I). [ka] Of these, R1 to R6 are each independently H, NR7R8, or aliphatic, and R7 and R8 are each independently H, aliphatic, an alkoxy group, or a carbamate group.

[0008] In one or more embodiments, R2, R3, and R5 are H.

[0009] In one or more examples, R1, R4, and R6 are C1-C6 alkyl groups.

[0010] In one or more examples, the solid content of the composition is 45-60 wt%.

[0011] In one or more examples, the pH value of the composition at 25°C is 4.5 to 7.0.

[0012] In one or more examples, the viscosity of the composition at 25°C is 10 to 30 cps.

[0013] Another object of the present invention is to provide a method for producing a composition, which involves reacting the following structural formula (II) with a carbonate ester in the presence of an alcohol and a base. [ka] Of these, R1 to R6 in structural formula (II) are each independently H, NR7R8, or aliphatic, and R7 and R8 are independently H, aliphatic, an alkoxy group, or a carbamate group.

[0014] In one or more examples, the manufacturing method further includes adding DBC so that it accounts for 2 to 11 wt% of the total weight of the composition.

[0015] In one or more examples, the carbonate ester is dimethyl carbonate.

[0016] In one or more examples, the base is an alkali metal alkoxide or an alkaline earth metal alkoxide.

[0017] In one or more examples, the alkali metal alkoxide is sodium tert-butoxide or sodium methoxide.

[0018] Another object of the present invention is to provide a coating composition comprising the above-mentioned TACT composition as a crosslinking agent. [Effects of the Invention]

[0019] The effects of the present invention are as follows: By using the tris(alkoxycarbonylamino)triazine composition of the present invention, the coated object can be given an excellent coating surface appearance. [Brief explanation of the drawing]

[0020] [Figure 1] This is the calibration curve of DBC used when calculating the DBC content in the sample of the present invention. [Figure 2] These are the test result photos of the paints of Examples 1 to 5 and Comparative Examples 1 to 3.

Mode for Carrying Out the Invention

[0021] The following embodiments do not unduly limit the present invention. Those skilled in the art to which the present invention pertains can make modifications and changes to the examples discussed herein without departing from the spirit or scope of the present invention, and those modifications and changes belong to the scope of the present invention.

[0022] As used herein, "1" and "one kind" mean that there is one or more (i.e., at least one) grammatical objects in this specification.

[0023] The present invention aims to provide a tris(alkoxycarbonylamino)triazine (TACT) composition, which contains TACT and dibutyl carbonate (DBC), and among them, DBC accounts for 2 to 11 wt% of the total weight of the composition.

[0024] As used herein, "tris(alkoxycarbonylamino)triazine composition (TACT)" means a composition containing TACT and dibutyl carbonate (DBC) that accounts for 2 to 11 wt% of the total weight of the composition, and TACT has the structure of the following structural formula (I).

Chemical formula

[0025] The term "aliphatic" as used above refers to an organic compound or free radical having a linear, branched, or ring-closed structure, which may contain one or more saturated or unsaturated carbon bonds and have 1 to 24 carbon atoms, specifically, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, or 24 carbon atoms, but is not limited to these.

[0026] In one or more examples, R1, R4, and R6 are not limited, but preferably C1-C6 alkyl groups, and the above-mentioned "alkyl group" refers to a linear or branched saturated aliphatic group containing a single bond (alkyl group) and a double bond (olefin group), which has 1 to 12 carbon atoms, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 carbon atoms, and in the present invention, it is preferable that there are 1 to 6 carbon atoms. Alkyl groups specifically include methyl group, ethyl group, 1-propyl group, isopropyl group, 1-butyl group, 2-butyl group, isobutyl group, tert-butyl group, pentyl group, 1,2-dimethylpropyl group, 1,1-dimethylpropyl group, pentyl group, isopentyl group, hexyl group, 4-methylpentyl group, 1-methylpentyl group, 2-methylpentyl group, 3-methylpentyl group, 2,2-dimethylbutyl group, 3,3-dimethylbutyl group, 1,2-dimethylbutyl group, 1,3-dimethylbutyl group, 1,2,2-trimethylpropyl group, 1,1,2-trimethylpropyl group, 2-ethylpentyl group, 3-ethylpentyl group. These include, but are not limited to, methylpentyl group, hexyl group, 1-methylhexyl group, 2,2-dimethylpentyl group, 3,3-dimethylpentyl group, 4,4-dimethylpentyl group, 1,2-dimethylpentyl group, 1,3-dimethylpentyl group, 4,4-dimethylpentyl group, 1,2-dimethylpentyl group, 1,3-dimethylpentyl group, 1,4-dimethylpentyl group, 1,2,3-trimethylbutyl group, 1,1,2-trimethylbutyl group, 1,1,3-trimethylbutyl group, 5-methylheptyl group, 1-methylheptyl group, octyl group, nonyl group, decyl group, undecyl group, or dodecyl group.

[0027] In one or more embodiments, R2, R3, and R5 are H.

[0028] In one or more examples, DBC accounts for 2 to 11 wt% of the total weight of the TACT composition, specifically, for example, within the range of any two values ​​among 2 wt%, 3 wt%, 4 wt%, 5 wt%, 6 wt%, 7 wt%, 8 wt%, 9 wt%, 10 wt%, or 11 wt%, but not limited to these. In the present invention, 3 to 8 wt% is preferred.

[0029] In one or more examples, the solid content of the TACT composition was 45-60 wt%, and the method for measuring the solid content was carried out in reference to DIN EN ISO 3251. Specifically, it is the mass percentage of the residue of the TACT composition relative to the original total amount after calcining the TACT composition at 105°C for 2 hours. The solid content of the TACT composition is, specifically, within the range of any two values ​​among 45 wt%, 46 wt%, 47 wt%, 48 wt%, 49 wt%, 50 wt%, 51 wt%, 52 wt%, 53 wt%, 54 wt%, 55 wt%, 56 wt%, 57 wt%, 58 wt%, 59 wt%, or 60 wt%, but is not limited to these values.

[0030] The term "pH value" as used herein refers to the measurement result of the TACT composition at 25°C. The inventors of this application have found that if the pH value obtained by measuring the TACT composition at 25°C is too high or too low, it may cause the composition to decompose, and therefore it is preferable to control the pH value obtained by measuring the TACT composition at 25°C to be within a certain range. In one or more examples, the pH value of the TACT composition at 25°C is 4.5 to 7.0, specifically, for example, within the range between any two values ​​from 4.5, 4.75, 5.0, 5.25, 5.5, 5.75, 6.0, 6.25, 6.5, 6.75, or 7.0, but is not limited to these.

[0031] As used herein, "viscosity" refers to the measurement result of the TACT composition at 25°C. The inventors of this application have found that it is preferable to control the viscosity of the TACT composition measured at 25°C to a certain range, because both excessively high and excessively low viscosity are undesirable for coating paints containing the TACT composition. In one or more examples, the viscosity of the TACT composition at 25°C is 10 to 30 cps, specifically, for example, within the range of any two values ​​from 10 cps, 12 cps, 14 cps, 16 cps, 18 cps, 20 cps, 22 cps, 24 cps, 26 cps, 28 cps, or 30 cps, but not limited to these.

[0032] Another object of the present invention is to provide a method for producing a composition, which involves reacting the following structural formula (II) with a carbonate ester in the presence of an alcohol and a base. [ka] Of these, R1 to R6 in structural formula (II) are each independently H, NR7R8, or aliphatic, and R7 and R8 are each independently H, aliphatic, an alkoxy group, or a carbamate group.

[0033] In one or more examples, the carbonate ester is dimethyl carbonate.

[0034] In one or more examples, the alcohol is an alkanol, specifically, for example, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, 2-butanol, tert-butanol, pentanol, isopentanol, neopentanol, tert-pentanol, hexanol, 2-methylpentanol, heptanol, octanol, 2-ethylhexanol, isooctanol, nonanol, isononanol, decanol, isodecanol, undecanol, dodecanol, tridecanol, isotridecanol Examples of alcohols include, but are not limited to, 2-methylethanol, 2-methoxyethanol, 2-ethoxyethanol, 2-propoxyethanol, 2-butoxyethanol, 2-or 3-methoxypropanol, 2-or 3-ethoxypropanol, 2-or 3-propoxypropanol, 2-or 4-methoxybutanol, 2-or 4-ethoxybutanol, 3,6-dioxaheptanol, 3,6-dioxaoctanol, 3,7-dioxaoctanol, 4,7-dioxaoctanol, 2-or 3-butoxypropanol, and 2-or 4-butoxybutanol. The alcohols used in the present invention can be used individually or in mixtures, and when used in mixtures, the components and proportions of each alcohol composition in the mixture can be arbitrarily adjusted depending on the usage.

[0035] In one or more examples, the base is an alkali metal alkoxide or an alkaline earth metal alkoxide, such as, but not limited to, sodium methoxide, sodium ethoxide, sodium n-propoxide, sodium isopropoxide, sodium t-butoxide, potassium methoxide, potassium ethoxide, potassium t-butoxide, magnesium methoxide, or magnesium ethoxide. In preferred examples, the alkali metal alkoxide is sodium t-butoxide or sodium methoxide.

[0036] To effectively control the amount of DBC (dihydrogen methylcellulose) produced as a byproduct during the preparation of TACT compositions, process parameters of the paint composition can be adjusted. In particular, the amount of sodium methoxide (SM) or sodium t-butoxide (STB) added can be adjusted. If the DBC content is excessive, increasing the amount of SM or decreasing the amount of STB can reduce the amount of DBC produced. Conversely, if the DBC content is insufficient, decreasing the amount of SM or increasing the amount of STB can increase the amount of DBC produced. Adjustments can also be made by controlling the amount of carbonate ester added; increasing the amount of carbonate ester increases the DBC content in the composition.

[0037] The inventors of this application have further discovered, although not limited to any particular theory, that in addition to controlling the amount of by-product DBC generated during the preparation of the TACT composition by adjusting the amount of carbonate ester, SM, or STB added as described above, it is also possible to add DBC in an additional way so that DBC accounts for 2 to 11 wt% of the total weight of the composition, thereby providing the coated object with an excellent coating surface appearance.

[0038] Therefore, the preparation process of the TACT composition may further include adding an appropriate amount of DBC so that it accounts for 2 to 11 wt% of the total weight of the composition.

[0039] Another object of the present invention is to provide a coating composition comprising the above-mentioned TACT composition as a crosslinking agent.

[0040] In one or more examples, the paint composition may further contain a polymer resin, such as, but is not limited to, functionalized or non-functionalized acrylic acid, styrene-acrylic acid, ethylene-acrylic acid, polyester, polyether, polyurethane, or alkyd resin polymer.

[0041] In one or more examples, the paint composition may further contain a solvent to enhance the solubility, dispersibility, and / or storage stability of each component in the paint composition. The solvent mentioned above may be water or an organic solvent. The organic solvent may be, but is not limited to, glycol ethers such as butyl glycol, butyl diglycol, ethoxypropanol, dipropylene glycol dimethyl ether, dipropylene glycol monomethyl ether, or ethylene glycol dimethyl ether; glycol ether esters such as ethyl glycol acetate, butyl glycol acetate, butyl diglycol acetate, or methoxypropyl acetate; glycols such as propylene glycol and its oligomers; esters such as butyl acetate, isobutyl acetate, or amyl acetate; ketones such as methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, cyclohexanone, or isophorone; alcohols such as methanol, ethanol, (iso)propanol, butanol, or hexanol; N-alkylpyrrolidones such as N-ethylpyrrolidone; aromatic hydrocarbons such as toluene or aliphatic hydrocarbons; varnish solvent (S100); or any combination of the solvents mentioned above.

[0042] In one or more examples, the paint composition may further contain, as additives, a catalyst, an antifoaming agent, a light stabilizer, a pigment, a dispersant, a flow modifier, a fluidizer, and a filler.

[0043] The catalyst described above may be an acid catalyst, an alkali catalyst, or a base catalyst, but is not limited to these. The defoaming agent described above may be a polyether-based defoaming agent, an organosilicon-based defoaming agent, or a mineral oil-based defoaming agent, but is not limited to these. The light stabilizer described above may be a UV protective powder, a UV absorber (UVA), a quencher, or a hindered amine light stabilizer (HALS), but is not limited to these. The dispersant described above may be an anionic wetting dispersant, a cationic wetting dispersant, a nonionic wetting dispersant, a zwitterionic wetting dispersant, an electroneutral wetting dispersant, a polymeric ultradispersant, or a living radical ultradispersant, but is not limited to these. The above-mentioned fluidity modifier may be an inorganic or organic fluidity enhancer, and specifically, for example, polyvinylpyrrolidone copolymer, aluminum magnesium silicate crystalline hydrate, non-associative thickener, associated thickener, or nonionic associated thickener, but is not limited to these. The above-mentioned filler may be silicon dioxide, but is not limited to this. [Examples]

[0044] The present invention will be described in more detail below with reference to examples. However, please understand that these examples are merely for the purpose of aiding the understanding of the present invention and do not limit its scope.

[0045] [Sample preparation] Example 1 36 g of melamine (Mel) and 99.9 g of dimethyl carbonate (DMC) were added to 60 g of n-butyl alcohol (NBA) to form a reaction mixture. Next, 625 g of an n-butyl alcohol (NBA) solution containing 20% ​​sodium tert-butoxide (STB) was added to the reaction mixture, and the reaction mixture was heated to 85°C and stirred for 180 minutes under the aforementioned conditions, after which the reaction mixture was cooled to room temperature. Next, 300 g of a 25% aqueous sulfuric acid solution was added to the reaction mixture and stirred until the reaction mixture exhibited a homogeneous phase. After the reaction mixture was allowed to stand, the lower layer of water was drained. Next, the remaining reaction mixture was washed by stirring with water, and then the reaction mixture was allowed to stand again and the lower layer of water was drained. After that, excess water and NBA were distilled off from the reaction mixture by heating under reduced pressure, and then NBA was added again to dilute the reaction mixture. Next, the solid residue in the reaction mixture was filtered through filter paper to obtain the TACT composition sample of Example 1, and the DBC content was detected.

[0046] Example 2 36 g of Mel and 88.8 g of DMC were added to 60 g of NBA to form a reaction mixture. Next, 625 g of NBA solution containing 20% ​​STB was added to the reaction mixture, the reaction mixture was heated to 85°C, stirred for 180 minutes under the aforementioned conditions, and then the reaction mixture was cooled to room temperature. Next, 300 g of 25% aqueous sulfuric acid solution was added to the reaction mixture and stirred until the reaction mixture exhibited a homogeneous phase. After the reaction mixture was allowed to stand, the lower layer of water was drained. Next, the remaining reaction mixture was washed by stirring with water, and then the reaction mixture was allowed to stand again and the lower layer of water was drained. After that, excess water and NBA were distilled off from the reaction mixture by heating under reduced pressure, and then NBA was added again to dilute the reaction mixture. Next, the solid residue in the reaction mixture was filtered through filter paper to obtain the TACT composition sample of Example 2, and the DBC content was detected.

[0047] Example 3 180g of the TACT composition sample from Example 2 was taken, 2.62g of dibutyl carbonate (DBC) was added and the mixture was uniformly stirred to obtain the TACT composition sample from Example 3, after which the DBC content was detected.

[0048] Example 4 180g of the TACT composition sample from Example 2 was taken, 10.57g of DBC was added, and the mixture was uniformly stirred to obtain the TACT composition sample from Example 4, after which the DBC content was detected.

[0049] Example 5 180g of the TACT composition sample from Example 1 was taken, 12.45g of DBC was added and the mixture was uniformly stirred to obtain the final TACT composition sample from Example 5, after which the DBC content was detected.

[0050] Comparative Example 1 36 g of Mel and 95 g of DMC were added to 60 g of NBA to form a reaction mixture. Next, 586 g of an NBA solution containing 14.7% sodium methoxide (SM) was added to the reaction mixture, and the reaction mixture was heated to 85°C and stirred for 180 minutes under the aforementioned conditions, after which the reaction mixture was cooled to room temperature. Next, 345 g of a 25% aqueous sulfuric acid solution was added to the reaction mixture and stirred until the reaction mixture exhibited a homogeneous phase. After the reaction mixture was allowed to stand, the lower layer of water was drained. Next, the remaining reaction mixture was washed by stirring with water, and then the reaction mixture was allowed to stand again and the lower layer of water was drained. After that, excess water and NBA were distilled off from the reaction mixture by heating under reduced pressure, and then NBA was added again to dilute the reaction mixture. Next, the solid residue in the reaction mixture was filtered through filter paper to obtain the TACT composition sample of Comparative Example 1, and the DBC content was detected.

[0051] Comparative Example 2 36 g of Mel and 111 g of DMC were added to 60 g of NBA to form a reaction mixture. Next, 625 g of NBA solution containing 20% ​​STB was added to the reaction mixture, the reaction mixture was heated to 85°C, stirred for 180 minutes under the aforementioned conditions, and then the reaction mixture was cooled to room temperature. Next, 300 g of 25% aqueous sulfuric acid solution was added to the reaction mixture and stirred until the reaction mixture exhibited a homogeneous phase. After the reaction mixture was allowed to stand, the lower layer of water was drained. Next, the remaining reaction mixture was washed by stirring with water, and then the reaction mixture was allowed to stand again and the lower layer of water was drained. After that, excess water and NBA were distilled off from the reaction mixture by heating under reduced pressure, and then NBA was added again to dilute the reaction mixture. Next, the solid residue in the reaction mixture was filtered through filter paper to obtain the TACT composition sample of Comparative Example 2, and the DBC content was detected.

[0052] Comparative Example 3 29 g of Mel and 82.9 g of DMC were added to 972 g of NBA to form a reaction mixture. Next, 87 g of 14.7% SM solid powder was added to the reaction mixture, the reaction mixture was heated to 78°C, stirred for 180 minutes under the aforementioned conditions, and then the reaction mixture was cooled to room temperature. Next, 338.2 g of 30% aqueous nitric acid solution was added to the reaction mixture and stirred until the reaction mixture exhibited a homogeneous phase. After the reaction mixture was allowed to stand, the lower layer of water was drained. Next, the remaining reaction mixture was washed by stirring with water, and then the reaction mixture was allowed to stand again and the lower layer of water was drained. After that, excess water and NBA were removed from the reaction mixture by distillation under reduced pressure and heating, and then the reaction mixture was diluted again by adding NBA. Next, the solid residue in the reaction mixture was filtered through filter paper to obtain the TACT composition sample of Comparative Example 3, and the DBC content was detected.

[0053] [Detection of by-product DBC] For the detection of DBC content in each sample, an autosampler AOC-20i / AOC-20s (Shimadzu Corporation) was used, and detection was performed by gas chromatography using a flame ionization detector (FID). The detection conditions were as follows: Carrier gas: Nitrogen gas Gas flow rate: 3.0 ml / min Gas volume: 1 milliliter Inlet temperature: 150℃ Detector temperature: 200℃ Column: ZB-1 (1.50mm, 0.53mm x 30m) Detector heating gradient curve: After sample injection, the oven temperature was first set to 40°C and maintained for 4 minutes. Then, the oven temperature was increased to 68°C at a heating rate of 3°C / min, and further increased to 150°C at a heating rate of 7°C / min and maintained for 5 minutes. Total operating time: 30.05 minutes

[0054] According to the GC chromatogram analysis, the by-product DBC in each sample was eluted at 24-26 minutes of retention time, and the DBC content of each sample was further calculated using a calibration curve.

[0055] [Calculation of by-product DBC content] 1. Plotting the DBC calibration curve 500 ppm, 1500 ppm, and 2500 ppm DBC standards were added to tetrahydrofuran (THF) solution to prepare three different DBC standard solutions. Then, the area values ​​of these DBC standard solutions were measured under the GC measurement conditions described above, and the calculated area values ​​and their corresponding DBC concentration values ​​were plotted on the DBC calibration curve shown in Figure 1.

[0056] 2. How to calculate DBC content The sample to be measured was diluted 50-fold with THF solution, and the diluted sample was measured under the GC measurement conditions described above. Next, the area value of the DBC peak at 24-26 minutes of the sample retention time was calculated, and then the DBC content of each sample was converted using the plotted DBC calibration curve described above.

[0057] [Coating surface appearance test] Each sample was prepared into a paint composition according to the formulations shown in Table 1 below. After dilution using a Ford Cup No. 4 until the paint viscosity reached approximately 18-20 seconds, each was spray-coated onto a substrate. After coating was complete, the coated substrates were baked at 140°C for 30 minutes to form substrates with a paint layer thickness of 22-30 μm, and the appearance of the coated surface was observed.

[0058] [Table 1]

[0059] [Experimental Results] Please refer to Table 2. Table 2 shows the physical properties, process parameters, and results of coating surface appearance tests performed on the TACT composition samples of Examples 1-5 and Comparative Examples 1-3. Please also refer to Figure 2. Figure 2 shows photographs of the test results for the coatings of Examples 1-5 and Comparative Examples 1-3.

[0060] [Table 2]

[0061] In Table 2 above, the evaluation of "normal" for the appearance of the coating surface means that no pinholes or sagging occurs on the coating surface. Therefore, from Examples 1 to 5 in Table 2, it can be seen that by controlling the amount of DBC in the TACT composition to account for 2 to 11 wt% of the total weight of the composition, when a coating composition containing the TACT composition is applied to an object, the object can exhibit an excellent coating surface appearance. In contrast, in Comparative Examples 1 to 3, the amount of DBC in the TACT composition was not controlled to account for 2 to 11 wt% of the total weight of the composition. As a result, pinholes appeared on the coating surface of the object coated with the coating composition containing the TACT composition in Comparative Example 1, and sagging occurred on the coating surfaces of Comparative Examples 2 and 3.

[0062] In summary, the present invention uses a tris(alkoxycarbonylamino)triazine (TACT) composition containing TACT and dibutyl carbonate (DBC) in an amount of 2 to 11 wt% of the total weight of the composition, thereby preventing phenomena such as pinhole formation and sagging from occurring on the coated object coated with the paint composition containing it, and thereby enabling the coating to exhibit an excellent surface appearance.

[0063] All scopes provided herein include combinations of specific scopes within an allocated scope and secondary scopes between those scopes. Furthermore, unless otherwise stated, all scopes provided herein include the scope endpoints. Therefore, scopes 1-5 specifically include 1, 2, 3, 4, and 5, as well as secondary scopes such as 2-5, 3-5, 2-3, 2-4, and 1-4.

[0064] All publications and patent applications referenced herein are incorporated herein by reference, and for all purposes, each publication or patent application is explicitly and individually indicated as being incorporated herein by reference. In the event of any inconsistency between this specification and any publication or patent application incorporated herein by reference, this specification shall prevail.

[0065] As used herein, the terms “includes,” “possesses,” and “inclusive” have an open, non-restrictive meaning. The terms “one” and “the said” should be understood to include plural and singular. The term “one or more” means “at least one” and can therefore include a single characteristic or a mixture / combined characteristic.

[0066] Except in the examples of operations or where otherwise indicated, all figures indicating components and / or reaction conditions may in all cases be modified with the term “approximately,” meaning that the actual figure is within ±5% of the indicated figure. The terms “essentially not included” or “substantially not included” as used herein mean that a particular characteristic is present in less than approximately 2%. Any element or characteristic explicitly described herein may be negatively excluded from the claims.

Claims

1. A tris(alkoxycarbonylamino)triazine (TACT) composition comprising TACT and dibutyl carbonate (DBC), wherein DBC accounts for 3.66 to 11 wt% of the total weight of the composition and the solid content accounts for 48 to 52 wt%.

2. The aforementioned TACT has the structure shown in the following structural formula (I), 【Chemistry 1】 Eventually, R ２ , R ３ and R ５ Each of them is independently H or aliphatic, and R １ , R ４ and R ６ is a C1 to C6 alkyl group, and is the composition according to claim 1.

3. Said R ２ , R ３ and R ５ is H, the composition according to claim 2.

4. The composition according to claim 1, wherein the pH value of the composition at 25°C is 4.5 to 7.

0.

5. The composition according to claim 1, wherein the viscosity of the composition at 25°C is 10 to 30 cps.

6. This involves reacting the following structural formula (II) with a carbonate ester in an environment where an alcohol and a base are present. 【Chemistry 2】 Among them, R in the above structural formula (II) ２ , R ３ and R ５ Each of them is independently H or aliphatic, and R １ , R ４ and R ６ is H; A method for producing a tris(alkoxycarbonylamino)triazine (TACT) composition, further comprising adding DBC to account for 3.66 to 11 wt% of the total weight of the composition.

7. The manufacturing method according to claim 6, wherein the carbonate ester is dimethyl carbonate.

8. The manufacturing method according to claim 6, wherein the base is an alkali metal alkoxide or an alkaline earth metal alkoxide.

9. The manufacturing method according to claim 8, wherein the alkali metal alkoxide is sodium tert-butoxide or sodium methoxide.

10. A paint composition comprising the TACT composition described in any one of claims 1 to 5 as a crosslinking agent.

Images