Spray composition for coating

FIELD: spray compositions for coating.

SUBSTANCE: the invention is pertaining to a composition used for coating including at least one isocyanate- reactive compound containing: a) at least one thiol group; b) at least one polyisocyanate-functional compound; and c) a catalytic agent containing at least one organometallic compound, in which as a metal is used a metal from groups 3-13 of Mendeleyev's periodic system of elements. The invention is also pertaining to usage of the composition for spray coating in the form of the transparent coating layer, to its use in the form of the transparent coating layer in a multilayer lacquer coating and to its use for a repeated finishing and for refinishing of the large-scale transportation means.

EFFECT: the invention ensures production of transparent coating layers used in multilayer lacquer coatings and refinishing of the large-scale transportation means.

11 cl, 17 ex

 

The invention relates to a sprayable composition for coating and its application in the form of a transparent cover layer, its application in the form of a transparent cover layer in a multilayer lacquer coating and its application for re-polishing surfaces and finishes with a large vehicle.

The coatings used for painting cars and restore and revive the original color, must be in good physical properties, such as hardness, mechanical strength and resistance to water, acids and solvents. The coating should also have a good appearance, which implies that the formed film should be smooth, shiny and clear. In addition, it is desirable that all the specified properties for a long time remained under the influence of weather factors.

Given the environmental factors, it is necessary to use such a composition for coating, which can be applied by spraying the composition containing low-volatile organic compounds. Coatings containing organic solvents with low volatility, produce less solvent, and thus the atmosphere is polluted to a lesser extent.

U.S. patent No. 4788083 discloses sprayable composition for coatings containing hydroxyl compound, isocyanate, metal can produce the R, selected from tin and bismuth, and the molar excess complexing agent, such as mercaptoethane. Although the catalysts of tin and bismuth are known metal catalysts for the reaction between hydroxyl group with the isocyanate group, it was found that these metal catalysts are not catalyze the reaction of interaction of the thiol group with the isocyanate group. In addition, mercaptoethane used in U.S. patent No. 4788083 for the formation of the complex and, thus, for the decontamination of metal catalyst. Activation of the metal catalyst is carried out by heating or addition of activator in the form of tertiary amine. Thus, the reaction of interaction of the hydroxyl group with the isocyanate group begins only when the metal catalyst is activated.

The present invention relates to a sprayable composition for coating, including

a) at least one isocyanate-reactive compound (i.e. a compound containing functional groups which are reactive toward isocyanate group containing at least one thiol group,

b) at least one polyisocyanate-functional compound and

c) a catalyst containing at least one ORGANOMETALLIC connection of the group of which metal is a metal of groups 3-13 of the periodic table.

Unexpectedly it was found that the sprayable composition for coating can be obtained, when the reaction of interaction of thiol compounds to catalyze the isocyanate in the presence of ORGANOMETALLIC compounds in which the metal is a metal of groups 3-13 of the periodic table, both at room temperature and at higher temperatures, such as 60°C. it Was shown that at all temperatures there is a great persistence in the Bank. Another advantage is the fact that in this case, a composition for coating is not necessary to add the activator type tertiary amine. Specified the addition would have a negative effect on persistence in the Bank songs to cover. In addition, the sprayed composition for coating according to the present invention has excellent properties, such as those mentioned above, which are necessary for its application by re-polishing the surfaces and decoration of large vehicles.

Although applicants do not intend to go into any theoretical details, they suggested that the ability of the ORGANOMETALLIC compound to hydrolysis plays a significant role in the reaction mechanism of interaction is diastereomer compounds with isocyanates. Therefore, the reaction between tolstushki compounds and isocyanates significantly different from the reaction between hydroxyl-containing compounds and isocyanates in the presence of metal catalysts.

U.S. patent No. 5849864 discloses sprayable composition for coatings containing polymeropoulos, the polyisocyanate and the catalytic complex with tin. Tin forms a complex with the acid. In keeping with the amine catalyst complex becomes activated. It was found that the catalytic complexes with tin not catalyze the reaction of interaction diastereomer compounds with isocyanates. In addition, as mentioned above, this fact complicates the application of Amin in compositions for coating.

International patent application WO 98/15585 discloses sprayable composition for coating comprising hydroxyl-containing compound, isocyanate and catalyst which is the reaction product of complex orthoevra titanium, zirconium, hafnium or aluminum, beta-diketone or beta-keeeper and complexing agent, such as mercaptoethane. The catalyst, as such, can be used in a quantity within the range of 0.005 to 0.5 wt%. in relation to the weight of the reaction mixture. Although mercaptoacetate compound and is present in the composition for coating, however, in such n is large quantities, international patent application WO 98/15585 does not describe the composition for coating according to the present invention.

Patent JP-A-04-063823 discloses a construction material for seals, including a connection with two or more thiol groups per molecule, a polyisocyanate compound and a metal soap. The patent does not disclose or does not offer any methods of cooking spray compositions for coating or her application for applying a transparent cover layer with the above properties.

U.S. patent No. 5064871 discloses a composition containing isocyanate-reactive compound, a polyisocyanate and a catalyst comprising bismuth carboxylate and zirconium. Although the use of polymercaptan as isocyanate reactive compound and was mentioned in the description, however, the examples are given only in respect of resins from polyols. In addition, the composition used in particular as an adhesive. The patent does not disclose or does not offer any methods of cooking spray compositions for coating or her application for applying a transparent cover layer with the above properties.

U.S. patent No. 4312971 discloses a composition including an organic compound containing at least two active hydrogen atoms, the polyisocyanate and the catalyst containing organic compounds is their zirconium and organic compound of mercury. Although the use of aliphatic thiols as organic compounds containing at least two active hydrogen atoms, and mention in the description, however, the examples are given only in respect of resins from polyols. In addition, the composition used, in particular, to obtain nechastyh polyurethanes, cellular rigid and flexible foams. The patent does not disclose or does not offer any methods of cooking spray compositions for coating or her application for applying a transparent cover layer with the above properties.

Patent JP-A-10182786 reveals sealant comprising a polymer having two or more thiol groups per molecule, polyisocyanate compound and ORGANOMETALLIC compound. Although in the description mention that the organo-mercury compounds and Sviatoshynskyi connection and can be used, however, only ORGANOTIN compounds are given as examples. As previously mentioned, the tin does not catalyze a reaction of thiol groups with the isocyanate group. In addition, in patent JP-A-10182786 not disclose or do not offer any methods of cooking spray compositions for coating or its application to a transparent cover layer with the above properties.

The use of ORGANOMETALLIC compounds, such as complexes of the CID is one, hafnium and aluminum, in the reactions of the interaction of the hydroxyl group with the isocyanate group disclosed in the publication J. Florio, Paint & Coatings Industry, October 1997, pp.110-120, and in U.S. patent No. 5846897. However, in these publications do not describe or suggest that these complexes can be used in the reaction between thiol groups with the isocyanate group.

The catalyst contains at least one ORGANOMETALLIC compound, where the metal is a metal of groups 3-13 of the periodic table. Preferably the metal is a transition metal. More preferably the metal is a metal of group 4 of the periodic table.

ORGANOMETALLIC compounds are metal salts and/or complexes of organic compounds. Organic compounds are groups containing from 2 to 40 carbon atoms, optionally comprising atoms such as O, N and S. metal Salts are anions selected from the group of carboxylates. Examples of such salts include propionate, butyrate, pentanoate, 2-ethylhexanoate, naphthenate, oxalate, malonate, succinate, glutamate and adipat. The metal complexes are ligands selected from the group consisting of beta-diketones, allylacetate, alcoholate, and combinations thereof. Examples of such ligands include acetylacetone (2,4-pentanedione), 2,4-HepB is andion, 6-methyl-2,4-heptadiene, 2,4-octandiol, propoxide, isopropoxide and piperonyl. Preferably the ORGANOMETALLIC compound is a metal complex.

Examples of metals include aluminum, titanium, zirconium and hafnium. Examples of metal complexes include aluminum, forms a complex with 2,4-pentanedione (CAT® HS ex King Industries), aluminum triacetyluridine, zirconium tetratetracontane, Zirconia tetrabutoxide (Tyzor® NBZ ex Dupont), titanium tetrabutoxide (Tyzor® TBT ex Dupont), zirconium forming a complex with 6-methyl-2,4-heptadienal, CAT® HS ex King Industries, aluminum triisopropoxide and titanium diisopropoxide bis-2,4(pentagonal) (Tyzor® AA ex Dupont). These catalysts can be used in amounts of from 0.01 to 10 wt%. in the calculation of the curable material, preferably from 0.1 to 5 wt. -%

Examples of isocyanate-reactive compounds containing at least one thiol group include a compound with thiol groups containing at least two thiol groups and a compound containing at least one thiol group and one hydroxyl group. In addition, mixtures of these compounds can be used in the compositions according to the present invention.

Suitable tiradera compounds are usually obtained by reacting compounds, the content is asih hydroxyl group, with acids containing thiol group, such as 3-mercaptopropionic acid, 2-mercaptopropionic acid, thiosalicylic acid, mercaptoethane acid, mercaptoacetate acid or cysteine. Examples of suitable hydroxyl-containing compounds are diols, trioli and tetraol, such as 1,4-butanediol, 1,6-hexanediol, 2,2-dimethyl-1,3-propandiol, 2-ethyl-2-propyl-1,3-propandiol, 1,2-, 1,3 - and 1,4-cyclohexanediol and the corresponding cyclohexanedimethanol, 1,1,1-trimethylolpropane, 1,2,3-trimethylolpropane and pentaerythritol. Examples of the compounds obtained in this way include pentaerythritol tetrakis(3-mercaptopropionate), pentaerythritol tetrakis(2-mercaptoacetate), trimethylolpropane Tris(3-mercaptopropionate), trimethylolpropane Tris(2-mercaptopropionate) and trimethylolpropane Tris(2-mercaptoacetate). Good results were obtained when using trimethylolpropane Tris(3-mercaptopropionate) and pentaerythritol tetrakis(3-mercaptopropionate).

The following example compounds obtained in this way is a compound consisting of hyperbranched Paleologo frame based on the original polyol, such as trimethylolpropane and dimethylolpropionic acid. Specified polyol subsequently tarifitsiruetsya 3-mercaptopropionic acid and isononanoic acid. These methods are described ineuropean patent application EP-A 0 448224 and international patent application WO 93/17060.

Other methods of synthesis of compounds containing at least two thiol functional groups, include:

the interaction of the aryl halide or alkyl halide with NaHS to the introduction side of thiol groups in the alkyl or aryl compounds, respectively;

the interaction of the Grignard reagent with sulfur for the introduction side of thiol groups in the structure;

- interaction of polymercaptan with polyolefin according to the reaction joining Michael, nucleophilic reactions, electrophilic reaction or a radical reaction;

the MDI interaction with alcohol containing thiol functional group, and recovery of disulfides.

The compound containing at least one thiol functional group and one hydroxyl functional group, may, for example, have a structure according to the following formula: T[(C3H6O)nCH2SNONCE2SH]3where T is a triol, such as trimethylolpropane or glycerin. An example of such a compound is commercially available connection from Henkel under the trademark of Henkel Capcure® 3/800.

Alternatively, the isocyanate-reactive compound containing at least one thiol group, is a resin having as a basis the polyester resin of the esters, polyurethane is a new resin, polyacrylate resin and a polyester resin of the ethers. In addition, these isocyanate-reactive compounds may also contain hydroxyl groups.

Isocyanate-reactive compound containing at least one thiol group, can be a polyester, obtained from (a) at least one polycarboxylic acid or its reactive derivative, (b) at least one polyol, and (C) at least one carboxylic acid containing a thiol functional group. Polyesters preferably have a branched structure. Branched polyesters are usually prepared by condensation of polycarboxylic acids or their reactive derivatives such as corresponding anhydrides or lower alkyl complex esters, polyalcohol, when at least one of the reacting substances is at least 3 functional groups. Examples of suitable polycarboxylic acids or their reactive derivatives are tetrahydrophtalic acid, tetrahydrophthalic anhydride, hexahydrophthalic acid, hexahydrophthalic anhydride, methylhexahydrophthalic acid, methylhexahydrophthalic anhydride, dimethylcyclopropanecarboxylate, 1,4-cyclohexanecarbonyl acid, 1,3-cyclohexanecarbonyl acid, nafta is the Wake acid, phthalic anhydride, isophthalic acid, terephthalic acid, 5-trebotivishta acid, trimellitic anhydride, maleic acid, fumaric acid, succinic acid, succinic anhydride, dodecanesulfonyl anhydride, dimethylsuccinic, glutaric acid, adipic acid, dimethyladipate, azelaic acid and mixtures thereof.

Examples of suitable polyols include trimethylolpropane, trimethylacetyl, glycerin, 1,2,6-hexanetriol, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 2-methylpropane-1,3-diol, neopentylglycol, 2-butyl-2-ethyl-1,3-propandiol, cyclohexane-1,4-Dimethylol, monoether neopentyl glycol and hydroxypivalic acid, hydrogenated bisphenol a, 1,5-pentanediol, 3-methylpentanediol, 1,6-hexanediol, 2,2,4-trimethylpentane-1,3-diol, dimethylolpropionic acid, pentaerythritol, ditrimethylol, dipentaerythritol and mixtures thereof.

Examples of suitable organic acids containing thiol functional group include 3-mercaptopropionic acid, 2-mercaptopropionic acid, thiosalicylic acid, mercaptoethanol acid, mercaptohexanol acid, cysteine, and mixtures thereof.

Optional monocarboxylic acids and monoparty can be used for the synthesis of polyesters. Preferably use C4-C18monocarboxylic acid and C6-C18monosperma. Use the s C 4-C18monocarboxylic acids include Pavlinov acid, hexanoic acid, heptane acid, octanoic acid, nonanoyl acid, 2-ethylhexanoyl acid, isononanoic acid, dekanovu acid, lauric acid, myristic acid, palmitic acid, isostearoyl acid, stearic acid, hydroxystearic acid, benzoic acid, 4-tertbutylbenzene acid and mixtures thereof. Examples6-C18monospitovo include cyclohexanol, 2-ethylhexanol, stearyl alcohol and 4-tertbutylphenol.

Good results can also be obtained by using aqueous dispersions of polyurethane containing thiol groups, which is obtained first by the synthesis of polyurethane containing isocyanate groups of the diols, diisocyanates and education units containing groups, which contribute to the stabilization of the resins in water dispersion, and then by reacting the polyurethane containing isocyanate groups, with the polyfunctional thiol by reaction joining catalyzed by a base, followed by the formation of a dispersion in water.

Isocyanate-reactive compound containing at least one thiol group may be a polyacrylate containing thiol functional groups. Such polyacrylate synthesized from hydroxyphenyl the national acrylic monomers, such as oxyethyl(meth)acrylate, oksipropil(meth)acrylate, oxobutyl(meth)acrylate, and other acrylic monomers such as (meth)acrylic acid, methyl(meth)acrylate, butyl(meth)acrylate, optionally in combination with minilateral derivatives, such as styrene, and the like or mixtures thereof, where the terms (meth)acrylate and (meth)acrylic acid refers to methacrylate and acrylate, and methacrylic acid and acrylic acid, respectively. Thiol groups injected with the reaction product of dimethyl-m-isopropylbenzylamine and mercaptoethanol. Alternatively, glycidylmethacrylate injected into the polymer to obtain a polyacrylate containing functional epoxypropyl. Then epoxypropyl subjected to interaction with the above mentioned suitable organic acids containing thiol functional groups. Polyacrylate synthesize by conventional means, for example, by slowly adding the appropriate monomers to the solution of the corresponding initiator of polymerization, such as initiator containing isogroup or proxygroup.

In addition, in the composition for coatings according to the invention can include diluents containing two, three or more thiol functional groups, such as acondition or bis-beta-mercapto-ethylsulfate. I prefer primenenyaemykh compounds, containing thiol functional group, which can be obtained by the interaction politial-functional compound with a polyisocyanate.

Preferably the isocyanate-reactive compound containing at least one thiol group, derived from a complex polyester compounds. Examples of such compounds include the above-mentioned reaction product of the interaction of compounds containing hydroxyl groups, with acids containing thiol groups, and the above complex polyester derived from (a) at least one polycarboxylic acid or its reactive derivative, (b) at least one polyol, and (C) at least one carboxylic acid containing a thiol functional group. The most preferred compound containing thiol functional group is pentaerythritol tetrakis(3-mercaptopropionate).

The organic polyisocyanate comprises a polyfunctional, preferably free polyisocyanates, with the average content of NCO functional groups of 2.5 to 5, and they may be in the nature of (cyclo)aliphatic, analiticheskie or aromatic. The polyisocyanate may include biuret, urethane, uretdione and derivatives isocyanurate. Examples of such organic polyisocyanates include 1,6-diisocyanatohexane, isopore the diisocyanate, 2,4-colorvision, 2,6-colorvision, diphenylmethanediisocyanate, 4,4'-bis(isocyanatophenyl)methane, 1,4-diisocyanatobutane, 1,5-diisocyanato-2,2-dimethylpentane, 2,2,4-trimethyl-1,6-diisocyanatohexane, 1,10-diisocyanatohexane, 4,4-diisocyanatohexane, 2,4-hexahydrotriazine, 2,6-hexahydrotriazine, norbornadiene, 1,3-xylylenediisocyanate, 1,4-xylylenediisocyanate, 1-isocyanato-3-(isocyanatomethyl)-1-methylcyclohexane, m-α,α-α',α'-tetramethylethylenediamine, above their derivatives and mixtures of them. Usually these products are liquid at ambient temperature and commercially available in a wide range. In particular, the preferred isocyanate hardeners are triisocyanate and adducts. Examples of such hardeners are 1,8-diisocyanato-4-(isocyanatomethyl)octane, the adduct of 3 moles colordistance to 1 pray of trimethylolpropane, which is the trimer of 1,6-diisocyanatohexane, which is a trimer of isophorondiisocyanate, uretdione dimer of 1,6-diisocyanatohexane, the biuret trimer of 1,6-diisocyanatohexane, the adduct of 3 moles of m-α,α-α',α'-tetramethylethylenediamine to 1 pray of trimethylolpropane and mixtures thereof. Preferred are cyclic trimers (isocyanurates) and uretdione 1,6-exanguination and isophorondiisocyanate. Oba is but these compounds contain a small amount of heavier homologues.

Optional composition for coating according to the present invention may also contain organic hydrophilic polyisocyanate compound, substituted by non-ionic groups, such as C1-C4alkoxyalkanols group. Preferably 30% of the mass. non-ionic groups will be present in all solid polyisocyanate compound, more preferably 20 wt. -%, the most preferred 15% of the mass. Preferred are isocyanurate 1,6-exanguination and isophorondiisocyanate, replaced by methoxypolyethyleneglycol.

Optional connection with a hydroxyl functional group containing at least two hydroxyl functional groups may be present in the curable material. Connection with a hydroxyl functional group containing at least two hydroxyl functional groups may be selected from a complex polyether polyols, simple polyester polyols, polyacrylate polyols, polyurethane polyols, cellulose acetobutyrate, epoxy resins containing hydroxyl functional groups, alkido and dendrimeric polyols such as described in international patent application WO 93/17060. Additionally, there may be included oligomers and monomers containing hydroxyl functional groups, such as castor mA is lo and trimethylolpropane. The preferred polyol is an acrylic polyol. More preferred is an acrylic polyol available from Akzo Nobel Resins having the trade name Setalux® 1157.

The polyisocyanate and isocyanate-reactive groups should be mixed so that the ratio of isocyanate groups to isocyanate-reactive groups is in the area of 0.5-3:1, preferably 0.75 to 2.5 to 1 and more preferably 1-2:1. It is preferable that at least 10% of isocyanate-reactive groups are thiol groups, more preferably at least 25%, most preferred at least 50%.

If the composition for coating of the included compound containing a hydroxyl functional group, there can be catalysts for cross-linkage of isocyanate groups with hydroxyl groups. Examples of catalysts include catalysts based on Sn, such as dibutyltindilaurate and dibutylaminoethanol.

The polyisocyanate may be mixed with the isocyanate-reactive compound in any suitable way. However, simple mixing is usually sufficient. Sometimes it may be suitable dilution MDI to some extent organic solvent such as ethyl acetate or 1-methoxy-2-propyl, so is nisit its viscosity.

Optional ketone based chelating agent may be added to the composition for coating. Examples of such chelating agent include beta-dicarbonyl, alpha hydroxyketone, condensed aromatic beta-hydroxy-ketones, diallylmalonate, acetoacetic esters, ancillarity and alkylphenolate. Preferably used beta-dicarbonyl, such as acetylacetone. Ketone based chelating agent may be used in amounts up to 10% of the mass. in the calculation of the solid substance, preferably up to 5% of the mass.

The composition according to the present invention can be a composition of water-based composition, solvent-based or free of solvent composition. Since the composition may be composed of liquid oligomers, it is particularly suitable for use as the highly rigid composition or free of solvent composition. Alternatively, the composition for coating according to the present invention can be aqueous powder dispersion for coating, where the isocyanate-reactive compound containing at least one thiol group, has Twithabove 20°C. Composition for coating can also be used in powder compositions for coating and hot-melt compositions for p the closure. Preferably theoretical content of volatile organic components (VOC) in the composition is less than about 450 g/l, more preferably less than about 350 g/l, most preferred less than about 250 g/l

In addition, compositions for coating may contain other ingredients, additives or auxiliary agents such as pigments, dyes, emulsifiers (surfactants), pigment dispersion additives, levelling reagents, against rabini, antifoams, wetting agents, reagents against flows, thermal stabilizers, UV absorbers, antioxidants and fillers.

Composition for coating can be applied to any substrate. The substrate may consist, for example, metal, plastic, wood, glass, ceramics or some other covering layer. Another covering layer may contain a composition for coating according to this invention or may be a different composition for coating. Composition for coating according to this invention are particularly applicable as a transparent cover layer, the base coating, pigmented top coats, primers and excipients. Preferably, the composition for coating according to the present invention can be used is Ana for formation of a transparent coating layer or as a primer tools.

Compositions for coating can be applied by conventional means, such as by means of a spray, brush or roller, and it is preferable to spray application. The preferred temperature curing are temperatures between 0 and 100°and more preferably between 20 and 60°C. the Compositions are particularly suitable for obtaining a coated metal substrates, such as, for example, to re-Polish the surface of products, in particular in the garage to repair cars and vehicles and for the finishing of large vehicles such as trains, trucks, buses and planes.

The composition according to the present invention is also suitable for coating with an external mixing device, where the liquid composition containing at least one isocyanate-functional compound and at least one isocyanate-reactive compound is sprayed through a spray gun, with a small amount of catalyst. Such a device is described, for example, in international patent application WO 98/41316. Thanks to a very efficient use of the catalyst compositions according to the present invention have a very short curing time, which makes this method particularly suitable for these compositions.

In case the oppozitsii to cover, which is applied in the form of a transparent cover layer, the base layer may be a conventional base layer known in the field of coatings. Examples are the basic top layers of solvent-based, for example Autobase® ex Akzo Nobel Coatings BV, based on acetobutyrate cellulose, acrylic resins and melamine resins, and the underlying coating layers on the basis of water, for example Autowave® ex Akzo Nobel Coatings BV, based on dispersion of acrylic resin and polyester resin. In addition, the base layer may contain pigments (paints, metallics and/or parametry), wax, solvents, additives that increase the fluidity, the neutralizing reagent and antifoams. Can also be used highly rigid base pavement. Such, for example, based on polyols, imino and isocyanates. The composition forming the transparent cover layer is applied on the surface of the base layer and then subjected to curing. Intermediate stage of curing can be entered for the base coating layer.

The invention can be illustrated by the following examples. Of course, these examples are presented only for a better understanding of the invention; in any case they are not considered as limiting the scope of invention.

Ways

The floor is frozen, when the mark from the company, on maemae finger, does not leave any imprint.

The thickening time is determined visually, and it represents the time after which the composition of the force of gravity no longer applies.

Examples 1-11 and comparative examples a and b

Preparing a composition containing the following compounds:

Penta (SH)450
Tolonate® HDT LV90
Byk 306 (10% of the mass. in butyl acetate)7,0

To this composition was added some metal-organic compounds, optionally in combination with acetylacetone (ASAS.). The film thickness of 50 μm was applied to a tin-plated metal. Drying time was evaluated at room temperature (RT) and at 60°C.

3
% mass. catalyst calculated on the solid binder% mass. ASAS added per catalystThe thickening timeDrying time when CTDrying time at 60°
11%-CAT® HS-> 1 day1 hour18 min
23%-CAT® HS-> 1 day45 min15 min
0,5% Tyzor® NBZ-20 min15 min2 min
40,5% Tyzor® NBZ500%> 1 day25 min5 min
50,5% Tyzor® NBZ900%> 1 day35 min7 min
60.5% of Zr(acac)4*-10 min6 min3 min
70.5% of Zr(acac)4100%1 day10 min4 min
80,5% Tyzor® TBT-35 min20 min4 min
90,5% Tyzor® TBT100%> 1 day75 min20 min
100.5% of Al(iPro)3**-6 min11 min4 min
110.5% of Al(ASAS)3***-> 1 day210 min25 min
120,21% Fe(acac)20%10 min60 minNot defined
130,29% V (acac)2800%> 1 day75 min/td> 10 min
140.35% of V (ASAS)2100%3-18 h35 minNot determined Leno
150,29% Mn (acac)2300%12-15 min17 min6 min
And1%-CAT® 348->> 1 hour
In1% dibutylamino-dilaurate->> 1 hour
* zirconium tetratetracontane

** aluminum triisopropoxide

*** aluminum triacetyluridine

These examples show that the ORGANOMETALLIC compound in which the metal is a metal of groups 3-13 of the periodic table, such as zirconium compounds, aluminum, and titanium are very active catalysts in the reaction between the thiol groups and isocyanate groups. The results obtained, optionally in combination with acetylacetone, demonstrate excellent balance between viability in the packaging and speed of drying. Well-known catalysts for the reaction between the hydroxyl group and oceanatlas group, like dibutyltindilaurate or visnudharmottara 2-ethylcaproic acid, did not show activity.

1. Sprayable composition for coating, including

a) at least one isocyanate-reactive compound containing at least one thiol group,

b) at least one polyisocyanate-functional compound,

c) a catalyst containing at least one ORGANOMETALLIC compound whose metal is a metal of groups 3-13 of the Periodic table, characterized in that it is designed for re-finishing and finishing of large vehicles.

2. The composition according to claim 1, characterized in that the metal is a transition metal.

3. The composition according to claim 2, characterized in that the metal is a metal of group 4 of the Periodic table.

4. The composition according to claim 1, wherein the metal is selected from the group consisting of aluminum, titanium, zirconium and hafnium.

5. Composition according to any one of claims 1 to 4, characterized in that the ORGANOMETALLIC compound is a complex compound with the metal.

6. The composition according to claim 5, characterized in that the complex compounds with metal comprise ligands selected from the group consisting of beta-diketones, allylacetate, alcoholate and their combinations.

7. The composition is according to any one of claims 1 to 6, wherein the composition for coating add chelating reagent, based on the ketone.

8. Composition according to any one of claims 1 to 7, characterized in that at least 50% of isocyanate-reactive groups are thiol groups.

9. Composition according to any one of claims 1 to 8, characterized in that the isocyanate-reactive compound containing at least one thiol group derived from a complex polyester connections.

10. Composition according to any one of claims 1 to 9, characterized in that it is a transparent composition for coating.

11. The composition according to claim 10, characterized in that it is designed for transparent multi-layer paint coating.



 

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4 ex

Resin composition // 2247087

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4 ex

FIELD: optical engineering.

SUBSTANCE: invention, in particular, relates to UV solidifying composition based on urethane acrylates and containing 6.0-19.3 wt parts of hydroxyalkylacrylate and 1-5 wt parts of light initiator, said urethane acrylate base being mixture of 30.0-82.0 wt parts of interaction product of poly(oxypropylene glycol), 2,4-tolylenediisocyanate, hydroxypropyl acrylate, and 1,2-propylene glycol [molar ratio (1-2):(2-3):(2-2.1):(0.003-0.33)] with 4.7-60.0 wt parts of interaction product of 2,4-tolylenediisocyanate, hydroxypropyl acrylate, and 1,2-propylene glycol [molar ratio 1:(2.5:(0.004-0.065)]. Fiber light guide consisting of quartz optical fiber enrobed by above-defined composition is further described. Loss of light in light guide is thus lowered to 0.42-0.23 dB/km. Rupture strength is thus increased by 7.0 GPa.

EFFECT: increased rupture strength and reduced light loss.

2 cl, 1 tbl, 8 ex

The invention relates to methods for producing polyisocyanates used for various polymeric materials, as well as to compositions based on polyisocyanates

The invention relates to odnoupakovochnye polyurethane film-forming, curing air moisture, which can be used as a varnish or binder in the polymer compositions having anti-corrosion properties

Apoximately lacquer // 2230088
The invention relates to the paint industry, in particular the production of apoximately compositions for protection of products from aluminum alloys and steel

The invention relates to a filler composition containing A) at least one polyacrylate containing hydroxyl group, consisting of 40-70 wt.% aromatic vinyl monomers and/or methacrylate, 25-40 wt.% (meth)acrylic monomers with a hydroxyl functional group, 0-20 wt.% (meth)acrylic monomers having at least 2 carbon atoms in the alkyl group, and 0.5-2.5 wt.% (meth)acrylic acid, where the polyacrylate containing hydroxyl group has a hydroxyl number of from 100 to 160 mg KOH/g of solid polymer, an acid number of from 5 to 20 mg KOH/g of solid polymer, Mw more than 15,000 and a Tg of 25 to 100C, b) at least one connection MDI, and (C) at least one pigment, and a filler composition has a volumetric concentration of pigment from 40 to 80% relative to the solids content of

FIELD: optical engineering.

SUBSTANCE: invention, in particular, relates to UV solidifying composition based on urethane acrylates and containing 6.0-19.3 wt parts of hydroxyalkylacrylate and 1-5 wt parts of light initiator, said urethane acrylate base being mixture of 30.0-82.0 wt parts of interaction product of poly(oxypropylene glycol), 2,4-tolylenediisocyanate, hydroxypropyl acrylate, and 1,2-propylene glycol [molar ratio (1-2):(2-3):(2-2.1):(0.003-0.33)] with 4.7-60.0 wt parts of interaction product of 2,4-tolylenediisocyanate, hydroxypropyl acrylate, and 1,2-propylene glycol [molar ratio 1:(2.5:(0.004-0.065)]. Fiber light guide consisting of quartz optical fiber enrobed by above-defined composition is further described. Loss of light in light guide is thus lowered to 0.42-0.23 dB/km. Rupture strength is thus increased by 7.0 GPa.

EFFECT: increased rupture strength and reduced light loss.

2 cl, 1 tbl, 8 ex

Resin composition // 2247087

FIELD: building industry, in particular polymer composition for sealing adhesives.

SUBSTANCE: claimed composition contains polyisocyanate oligomer comprising 1.9-8.9 mass % of isocyanate groups, water, polymethylsiloxane, dioctylphtalate, chloroparaffin, glycerol, and inorganic powder. Composition of present invention is useful in manufacturing of floor, roof cladding, etc.

EFFECT: composition if increased flexibility, strength, uniform surface flowing, improved wettability, adhesion, homogeneity, radiation resistance, and increased curing time.

4 ex

FIELD: building materials, in particular polymer composition for sealing adhesive, coats, filling floors, etc.

SUBSTANCE: method includes blending at pH 7.5-13.0 of inorganic powder, water and technological additives: polymethylsiloxane, dioctylphtalate, chloroparaffin, followed by addition of polyisocyanate oligomer comprising 1.9-8.9 mass % of isocyanate groups. Method makes it possible to create fastness mode for carbolinic acid and its involvement in chain-elongation reaction without releasing of carbon dioxide.

EFFECT: composition of increased strength, flexibility and alternated characteristics.

4 ex

FIELD: corrosion prevention technologies.

SUBSTANCE: method includes serial application of layers of polymer compositions to metallic surface, while serial layers of polymer compositions are made with various thermal expansion coefficients. As said polymer composition polyurethane compound is used with special admixtures and filling agent, influencing thermal expansion coefficient of covering layer, and content of said filling agent in each following layer is set less than content of said filling agent in previous layer.

EFFECT: higher efficiency.

2 cl, 9 ex

FIELD: varnish-and-paint industry.

SUBSTANCE: invention relates to polyurethane coatings intended to be applied on a variety of surfaces (metal, wood, etc.). Composition comprises toluene solution of hydroxyl-containing component and toluene solution of polyisocyanate. Hydroxyl-containing component is oligoether obtained by in-melt reaction of tall oil with triethanolamine at 170-200°C and characterized by viscosity at most 10000 mPa·s, acid number at most 5.0 mg KOH/g and hydroxyl number 125-138 mg KOH/g. Oligoether-to-polyisocyanate ratio is 1:1.

EFFECT: enabled preparation of two-component lacquer with elevated light resistance, water resistance, and stability, which is suitable for anticorrosive coatings on metal products.

3 cl, 1 tbl

FIELD: polymer materials.

SUBSTANCE: composition contains 5-95% of alkali-swelled polymer prepared by stepped nucleus/shell-type polymerization and 95-5% of at least one polyurethane. Composition is suitable as priming in priming/transparent layer system, which is characterized by high mechanical properties, high "flop", good brightness, essentially lack of "penetration", and good waterproofness.

EFFECT: reduced coating drying time and number of layers.

8 cl, 3 tbl, 17 ex

FIELD: spray compositions for coating.

SUBSTANCE: the invention is pertaining to a composition used for coating including at least one isocyanate- reactive compound containing: a) at least one thiol group; b) at least one polyisocyanate-functional compound; and c) a catalytic agent containing at least one organometallic compound, in which as a metal is used a metal from groups 3-13 of Mendeleyev's periodic system of elements. The invention is also pertaining to usage of the composition for spray coating in the form of the transparent coating layer, to its use in the form of the transparent coating layer in a multilayer lacquer coating and to its use for a repeated finishing and for refinishing of the large-scale transportation means.

EFFECT: the invention ensures production of transparent coating layers used in multilayer lacquer coatings and refinishing of the large-scale transportation means.

11 cl, 17 ex

Polymer composition // 2263695

FIELD: polymerizing mixtures for making water-repellent and anticorrosive coats.

SUBSTANCE: proposed polymer composition contains polyester resins, styrene, hardening agent-peroxide compounds and accelerating agent, inert substances, gel-type binder, paraffins and poly-urethanes. Proposed composition increases service life of coat due to reduction of effect of aggressive factors of outside medium on characteristics of coat.

EFFECT: increased rate of polymerization without considerable stresses in coat; facilitated procedure of applying coats on base of this composition.

23 cl, 80 ex

FIELD: protective coatings.

SUBSTANCE: invention relates to composition to form coatings with quick-setting surface at ambient temperature for use in re-finishing industry, in manufacture of clear coating, and as primer layer in multilayer coating. Composition contains at least one latent base-type photoactivator and base-catalyzed polymerizable or hardenable organic material including isocyanate-reactive groups bearing at least one thiol group.

EFFECT: enabled preparation of compositions, which can be UV hardened and are characterized by acceptable setting velocity at ambient temperature in locations not easily accessible for UV emission.

15 cl, 11 tbl, 10 ex

FIELD: polymer production.

SUBSTANCE: coating composition comprising at least one compound with at least two isocyanate functional groups; at least one compound reactive to isocyanate and having at least two groups reactive to isocyanate groups, which are selected from mercapto groups, hydroxyl groups and combinations thereof; and cocatalyst consisting of phosphine and Michael acceptor, amount of catalyst constituting from 0.05 to 20% of the weight of dry residue. Invention also describes a method for coating substance with indicated composition as well as coated substrate, and adhesive containing at least one compound with at least two isocyanate functional groups and at least one compound containing at least two above defined groups reactive to isocyanate groups. Moreover, invention discloses employment of composition for finishing of great vehicles and refinishing of motor cars. Composition is characterized by drying time at a level of 20 min, modulus of elasticity 1904, Persose hardness 303, and brightness (85°C) at a level of 100.

EFFECT: expanded coating assortment.

16 cl, 16 tbl, 48 ex

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