Method producing coating material

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing coating material. Disclosed is a method of producing coating material in form of powdered lacquer or a fluid resin, characterised by that one or more alcohols or polyols react with one or more silanes selected from a group consisting of (isocyanatomethyl)methyl-dimethoxysilane, 3-isocyanatopropyl-trimethoxysilane and 3-isocyanatopropyl-triethoxysilane, to form a covalent bond between the alcohol or polyol and the silane such that the reaction product is a high-molecular weight silane which is cured directly using a catalyst, wherein all alcohol or polyol organic functional groups participate in the reaction with the silane organic functional group. Coating material and use thereof are also disclosed.

EFFECT: disclosed method enables to obtain coating material which can be used to make scratch-resistant coatings.

12 cl, 4 ex

 

The technical field to which the invention relates.

The invention relates to a method for coating. It also relates to the application of coating.

The level of technology

Known powder lacquers obtained from polysiloxanes that via organic functionalization (OH-, COOH-, NCO-group(s)) filed with the appropriate compounds or catalysts. Such coating systems used as anti-corrosion coating for metals, is known from US 6376607 B1.

These coatings show high corrosion resistance, but in most cases only moderate abrasion resistance.

Alternative powder lacquers are epoxy - or acrylate-modified polymers, which with appropriate catalysts are sewn cross-links and are used, for example, as a transparent varnish in the automotive industry. However, these coating systems are known, for example, from US 6376608 B1, show only moderate resistance to chemicals or scratch.

In WO 2006/042658 A1, for example, to obtain a scratch-resistant binders also described the exchange reaction of isocyanates (HDI) with amino-functional silanes, which merge with the transverse links, for example, with appropriate catalysts R storatisea only in aprotic solvents or in mixtures of aprotic solvents.

From US 2002/0042461 A1 it is known connection, at least one cyclic polymer with the addition of the olefin, which contains besides organic carboxy-, phosphorus -, or sulfonic acid, ammonia, amines from primary to tertiary or Quaternary ammonium hydroxide and shows optical transparency, solvent resistance, thermal stability and good adhesion to metals and inorganic substances.

Disclosure of inventions

The objective of the invention is to provide a method of producing new material for coatings in the form of powder paint, the use of which can produce scratch-resistant coating.

According to the invention this task is solved by a method of producing material for coatings in which one or more organic molecules, oligomers or polymers containing at least one functional group to react with a silane containing at least one functional organic group in the organic side chain, with the formation of covalent bonds between the organic molecule, oligomer or polymer and the silane so that the final reaction product is a high molecular weight silane capable of curing directly under the action of a catalyst.

The invention also covers ready connection in the form of powder lacquer sludge is in the form of a fluid resin.

Surprisingly, it was shown that the reaction of organically functionalized (e.g., via NCO-functionalization) silanes (in most cases, not enough pre-sewn) with the appropriate reagents partners can obtain a new class of compounds, which are in the form of a powder varnish or binders with high solids or 100%-s resins can be used as a material for coating. As is known from the prior art, the processing of silanes is carried out by the Sol-gel method, and as a source of silane used their pre-condensed species. The principle of the invention, in which the reaction of the preliminary condensation largely or completely eliminated, has in this respect an advantage of the above method, because it allows to provide an unlimited life (viability) of the coating and to improve its properties, in particular high resistance to scratches. The resulting high molecular weight silanes can be in the form of either solid, again able to fuse at temperatures above 80°C or fluid of 100%resin.

According to the invention provides that at least 20%, preferably each functional group molecules, oligo the EPA or polymer participate in the reaction with the organic functional group of the silane.

The first of these two options is preferable, in particular, if other functional groups perform a specific function, for example, an antimicrobial, inhibiting the growth of microbes, hormonal, enzymatic, or any other biochemical action.

Preferred variants of the embodiment of the invention is that the organic molecule, oligomer or polymer is selected from the group consisting of alcohols, polyols, amines, isocyanates, compounds of hydrogen sulfide, phosphate, anhydrides, carboxylic acids, methacrylates, acrylates, amino acids or DNA, hormones, enzymes, peptides, sugars, polysaccharides, active biomedical substances and natural compounds.

Preferred variants of the embodiment of the invention lie in the fact that the silanes with one functional group in organic side chain selected from the group consisting of monoamino-functionalized silanes (dialkoxy, dialkoxy, Monolake-), diamine-functionalized silanes (dialkoxy, dialkoxy, Monolake-), triamine-functionalized silanes, sec-amine-functionalized silane, tert-amine-functionalized silanes, Thu-amine-functionalized silanes, dipodal-amine-functionalized silanes, anhydride-functionalized power is s, the acrylate - and methacrylate-functionalized silanes (dialkoxy, dialkoxy, Monolake-), epoxy-functionalized silanes (dialkoxy, dialkoxy, Monolake-), halogen-functionalized silanes (dialkoxy, dialkoxy, Monolake-), isocyanate - and hidden (blocked) isocyanate-functionalized silane, phosphate-functionalized silanes, sulfur-functionalized silanes, vinyl and olefin-functionalized silanes (dialkoxy, dialkoxy, Monolake) and triethoxysilylpropyl-modified polyethylenimine.

Under the silanes are meant, in particular, the following: 3-aminopropyl-triethoxysilane, aminoethyl-aminopropyl-trimethoxysilane, aminoethyl-aminopropyl-silane, 3-aminopropyl-trimethoxysilane, N-(2-amino-ethyl)-3-aminopropyl-trimethoxysilane, N-(2-amino-ethyl)-3-aminopropyl-metaldimension, N-cyclohexyl-3-aminopropyl-trimethoxysilane, benzyl-amino-ethyl-aminopropyl-trimethoxysilane, vinylbenzyl-amino-ethyl-aminopropyl-trimethoxysilane, vinyl trimethoxysilane, vinyl-triethoxysilane, vinyl-dimethoxy-methylsilane, vinyl(Tris)-methoxyethoxide, vinyl-methoxy-methylsilane, vinyl(Tris)-2-methoxyethoxide, vinyl-triacetoxy, chloropropyl-trimethoxysilane, 3-glycidoxypropyl-trimethoxysilane, 3-glycidoxypropyl-triethoxysilane, glycidoxypropyl-metildigoxin, measures captopril-trimethoxysilane, bis-triethoxysilyl-propyl-disunification, bis-triethoxysilyl-propyl-tetrasulfide, N-cyclohexyl-aminomethyl-detoxifies, N-cyclohexyl-aminomethyl-triethoxysilane, N-phenyliminomethyl-trimethoxysilane, (methacrylate-oxymethyl)methyl-dimethoxysilane, methacrylate-oximeter-trimethoxysilane, (methacrylate-oxymethyl)methyl-detoxifies, methacrylate-oximeter-triethoxysilane, 3-methacrylate-oksipropil-trimethoxysilane, 3-methacrylate-oksipropil-triacetoxy, (isocyanatomethyl)methyl-dimethoxysilane, 3-isocyanato-propyl-trimethoxysilane, 3-isocyanatopropyl-triethoxysilane, 3-trimethoxysilyl-methyl-O-methylcarbamate, N-dimethoxy(methyl)millimeter-O-methylcarbamate, 3-(triethoxysilyl)propyl-succinic acid anhydride, dicyclopentyl-dimethoxysilane, and 3-(trimethoxysilyl)-propyl-dimethyl-octadecyl-ammoniate, Tris(3-trimethoxysilyl)isocyanurate, 3-(triethoxysilyl-propyl)-t-BUTYLCARBAMATE, triethoxysilyl-propyl-ethylcarbamate, 3-thiocyanatopropyl-triethoxysilane, bis[3-(triethoxysilyl)propyl]-tetrasulfide, bis[3-(triethoxysilyl)propyl]-disulfide, 3-mercaptopropyl-methyl-dimethoxysilane.

According to the invention the water content is at most 1%, and particularly it is preferable to conduct the reaction in the absence of water. Typically, the humidity does not affect the reaction.

It is shown that the advantage is on, the final connection, which again represents the silane has a molar mass of at least 500 g/mol.

In this regard, it is envisaged that inorganic crosslinked silanes was up to 5%, preferably 1% and more preferably not exist.

In the framework of the invention, the organic molecule is selected from the group consisting of alcohols, amines, isocyanates, compounds of hydrogen sulfide, phosphate, anhydrides, carboxylic acids, amino acids, hormones, enzymes, peptides, sugars, polysaccharides, and natural compounds.

The method of the invention is that the reaction product is dissolved in proton or aprotic solvents.

Then may be its application microhelices method.

So, it may be preferable, for example, adding a solvent, in particular ethanol, acetate, simple ester or reactive diluent.

Thus, it is expedient to dissolve when heated to a temperature at least 50°C.

The method of the invention also lies in the fact that, as catalysts to 20 wt.%, preferably from 0.5 to 50 wt.% silanes, in particular aminosilanes, or Lewis acids or Lewis bases, particularly in the form of complexes, salts or particles of transition metals, preferably micro - or nanoparticles.

In this the ligature is preferable to use as complexes of salts or particles of transition metal complexes of titanium, aluminum, tin or zirconium.

In addition, it may be added as fillers, inorganic or organic particles, in particular, micro-, submicro - or nanoparticles.

Similarly the scope of the invention include adding matting substances, spaceways-dispersing means, UV absorbers, UV stabilizers, HALS-stabilizers, light stabilizers based on spatial difficult amines), catchers radicals, defoamers, waxes, biocides, preservatives, inorganic or organic fillers, Teflon particles, waxes or pigments.

In addition, in the framework of the invention provides for the application of the coating material on the substrate electrostatic, triboelectric or wet-chemical method, in particular by spraying, dipping, pouring, using a roller, by dyeing, printing, using the gun, squeegee or by evaporation in a vacuum.

In this case, the substrate according to the invention consists of metal, plastic, lacquer, textiles, natural materials such as wood and leather, glass, mineral substances, in particular, from artificial or natural stone, such as marble and granite, or composite materials.

The method of the invention also lies in the fact that the coating material after application of asubstrate cures at temperatures from room temperature up to 1200°C, preferably from 50 to 250°C., and the curing is preferably thermally, using microwave radiation or UV radiation.

The method of the invention also lies in the fact that curing occurs at room temperature with the addition of organic acids or bases or under the action of UV light by radical or cationic polymerization initiated by adding photoinitiators that trigger radical or cationic polymerization.

The scope of the invention also include the use of obtained according to the invention the coating material for the manufacture of scratch-resistant, corrosion-resistant, easily cleanable, resistant to fingerprints, antirefleksnoe, shock-proof, resistant to scaling, non-fouling (for Maritime vessels) coatings, warning diffusion, protective coatings for wood, steel or self-cleaning, antibacterial, antimicrobial, resistant to chemicals, tribological or hydrophilic coatings, and coatings for biomedical purposes, in particular, to accelerate tissue growth and effects on blood clotting, and also for processing of tissues and implants.

In more detail, the invention disclosed in the following examples of its practical implementation.

Implementation is the group of inventions

Example 1

Stage 1

11,8 g hexandiol together with a 49.5 g ICTES (isocyanatopropyl-triethoxysilane) are heated under stirring to 80°C and mixed with 0.1 g of dibutyltindilaurate. The mixture is then cooled to 50°C and further processed in accordance with method a or B.

Stage 2: Method And composition of the powder lacquer)

At the same temperature 10 g of the reaction product are mixed with 0.1 g aluminiumalloy (50%dissolved in 2-butanol). Then the resulting mixture was slowly cooled to room temperature. Vykristallizovalsya in the course of this resin is ground in a special mill to a particle size of <50 μm and sifted. To the obtained powder as a leveling additive is added to 0.8% Byk 359, and the mixture is well kneaded.

Obtained in this method the powder is applied by electrostatic or triboelectric by spraying on an already covered with colored lacquer steel sheet and dried at 130°C. in a drying Cabinet with air circulation.

Stage 2: Method (composition with a high content of dry residue)

80 g of the reaction product are dissolved in 20 g of 1-methoxy-2-propanol and mixed with 0.2 g aluminiumalloy. After spray application on a steel plate coated with a lacquer-based black pigment is dried in an oven with air circulation at 150°C for about 20 minutes to complete from the eridania.

The resulting layer is fabricated by methods a and b samples showed extremely high resistance to scratches when cleaning metal sponge and resistance to chemicals, for example, 36%sulfuric acid with no signs of rust (etching) of the order of >30 minutes

Example 2

Stage 1

of 33.6 g of 2,2-bis-4-hydroxyphenylacetamide together with 49,47 g isocyanatopropyl-triethoxysilane heated under stirring to 80°C and mixed with 0.1 g of dibutyltindilaurate. The mixture is then cooled to 50°C and processed further in stage 2.

Stage 2

5 g of the reaction product (from step 1) are dissolved in 1 g of isopropanol and mixed with 0.1 g zirconatetitanate.

The resulting coating solution is applied by pouring on the polycarbonate substrate and cured at 130°C for 60 min in an oven with air circulation. Before applying the coating layer polycarbonate substrate is filled with a primer (0.5%solution of 3-aminopropyl-triethoxysilane in ethanol) and dried in air for 5 min at room temperature.

Coatings showed very high resistance to scratches spot scratches, for example, a wrench or screwdriver. After 1000 hours these layers are not shown optically visible yellowing in QUV-test (done in weatherometer (artificial climate) with UV tubes).

When is EP 3

Stage 1

1 mol Fluorlink D (modifier polymers) (HOCH2CF2-O-(CF2CF2O)p-(CF2O)q-CF2-CH2OH, from Ausimont company) together with 2 moles of isocyanatopropyl-triethoxysilane (ICTES) after heating up to 80°C to form a homogeneous transparent mixture. In this mixture are added 2 drops of dibutyltindilaurate, then it is kneaded for about 3 hours Then the mixture is cooled to room temperature.

Stage 2

3 g waxy mixture is mixed with 0.1 g of zirconium lactate and 9 g of ethanol. Then the mixture is applied by spraying on the plate of stainless steel (pre-removes grease and oil) and cured at 180°C for 1 h in a drying Cabinet.

When applying a finger to the surface with the specified coating fat cream Nivea fingerprint on this surface was barely visible in comparison with an untreated surface. After 1 hour the finger print coating was easily removed with a dry paper towel without leaving a trace, which also confirms a much better cleaning of the surface with the coating in comparison with control: fingerprint after removal of the cream from the raw surface was still noticeable. Then, both surfaces were processed dining oil and water: comparison with the surface of the stainless steel without coating (counter is l) surface with the coating showed a strong drop and drop it very easily removed with a dry cloth without leaving traces.

Example 4

1 mol H[O(CH2)4]nOH (PolyTHF 2000, from BASF), together with 2 moles of isocyanatopropyl-triethoxysilane (ICTES) after heating up to 80°C to form a homogeneous transparent mixture. In this mixture are added 2 drops of dibutyltindilaurate, and she kneaded for about 8 hours the mixture is Then cooled to room temperature.

The mixture was applied by dipping on the polycarbonate plate and dried at 130°C. With a circular pattern tile floor was placed for 20 sec above boiling water at a distance of 15 cm from the surface of the water. In this test, the tile floor showed no formation of any plaque.

1. The method of producing the coating material in the form of a powder varnish or liquid resin, characterized in that one or more alcohol(s) or polyol(s) react with one or more silanes selected from the group consisting of (isocyanatomethyl)methyldiethanolamine, 3-isocyanatopropyl-trimethoxysilane and 3-isocyanatopropyltrimethoxysilane, with the formation of covalent bonds between the alcohol or polyol and a silane, so that the reaction product is a high molecular weight silane, which cures directly through the catalyst, all of the functional organic group of the alcohol or polio is and participate in the reaction with the organic functional group of the silane.

2. The method according to claim 1, characterized in that the compounds have a molar mass of at least 500 g/mol.

3. The method according to claim 1, characterized in that the catalysts used up to 20 wt.% silanes, in particular, aminosilanes, or Lewis acids or Lewis bases, particularly in the form of complexes, salts or particles of transition metals, preferably micro - or nanoparticles.

4. The method according to claim 3, characterized in that the complexes, salts or particles of transition metals represent complexes of titanium, aluminum, tin or zirconium.

5. The method according to claim 1, characterized in that as fillers add inorganic or organic particles, in particular, micro-, submicro - or nanoparticles.

6. The method according to claim 1, characterized in that add a matting agent spaceways-dispersing means, UV absorbers, UV stabilizers, HALS-stabilizers, light stabilizers based on spatial difficult amines), catchers radicals, defoamers, waxes, biocides, preservatives, inorganic or organic fillers, fluorocarbon particles or pigments.

7. The method according to claim 1, characterized in that the coating material is applied to the substrate electrostatic, triboelectric or wet-chemical method, in particular by spraying, dipping, pouring, using a Wali is a, by dyeing, printing, using the gun, squeegee, or by evaporation in a vacuum.

8. The method according to claim 7, characterized in that the substrate comprises metal, plastic, ceramics, lacquer, textiles, textiles, natural materials such as wood or leather, glass, mineral substances, in particular artificial or natural stones such as marble and granite, or composite materials.

9. The method according to claim 7, characterized in that the coating material after application utverjdayut from room temperature to 1200°C., preferably from room temperature up to 250°C, and the curing preferably takes place by thermal, using microwave radiation, electron radiation or UV radiation, or combinations of the above.

10. The method according to claim 9, wherein the curing occurs at room temperature by adding organic acids or bases or under the action of UV light by radical or cationic polymerization initiated by adding photoinitiators, triggering a radical or cationic polymerization.

11. The coating material in the form of a powder varnish or fluid resin obtained by the method according to any one of claims 1 to 10.

12. The application of the coating material in the form of a powder varnish or liquid resin according to claim 11 for the production of scratch-resistant, anticorrosion the x, easily cleanable, resistant to fingerprints, antirefleksnoe, shock-proof, resistant to scaling, non-fouling (for Maritime vessels) coatings, protective coatings for wood, coatings, warning diffusion coatings for protection against radiation or self-cleaning, antibacterial, antimicrobial, resistant to chemicals, tribological or hydrophilic coatings, and coatings for biomedical purposes, in particular, to accelerate tissue growth and effects on blood clotting, and also for processing of tissues and implants.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: present invention relates to coating compositions which contain resin binder in form of an organofunctional polysiloxane polymer, which acquires a polymer structure as a result of partial action of a curing mechanism or a combination of curing mechanisms. Disclosed is a coating composition which is curable at ambient temperature, which contains polysiloxane with molecular weight of 500-2000 and an organofunctional silane with two hydrolysable groups, wherein content of solid substances in the coating composition is at least 60 wt %. Disclosed also is a method of forming a cured coating composition, a version of the coating composition, wherein polysiloxane does not contain epoxy groups, and versions of applying coating compositions.

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FIELD: chemistry.

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FIELD: chemistry.

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3 cl, 2 dwg, 2 tbl, 6 ex

FIELD: chemistry.

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2 cl, 5 dwg, 3 tbl, 6 ex

FIELD: chemistry.

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14 cl, 7 tbl, 11 ex

FIELD: chemistry.

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7 cl, 2 dwg, 1 tbl

FIELD: weapons and ammunition.

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5 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: antifouling coating composition contains a curable polymer which is an organosiloxane-containing polymer and an organosilicon polymer which is liquid, having general formula: , where R1 can be identical or different and are selected from alkyl, aryl and alkenyl groups, optionally substituted with an amino group, an oxygen-containing group of formula OR5, where R5 is hydrogen or C1-6 alkyl, and a functional group of formula (I): -R6-N(R7)-C(O)-R8-C(O)-XR9 (i) where R6 is selected from alkyl, hydroxyalkyl, carboxyalkyl containing 1-12 carbon atoms, and polyoxyalkylene containing up to 10 carbon atoms; R7 is selected from hydrogen, alkyl, hydroxyalkyl, carboxyalkyl containing 1-6 carbon atoms, and polyoxyalkylene containing 1-10 carbon atoms; R7 can be bonded with R8 to form a ring; R8 is an alkyl group containing 1-20 carbon atoms; R9 is hydrogen an alkyl group containing 1-10 carbon atoms, optionally substituted with oxygen- or nitrogen-containing groups; X is selected from O, S and NH; under the condition that, at least one R1 group in the organosilicon polymer is a functional group of formula (I) given above or a salt derivative thereof; R2 can be identical or different and are selected from alkyl, aryl and alkenyl; R3 and R4, which can be identical or different, are selected from alkyl, aryl, blocked or non-blocked polyoxyalkylene, alkaryl, aralkylene and alkenyl; a is a whole number from 0 to 50000; and b is a whole number from 0 to 100, where a+b is equal to at least 25.

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8 cl, 1 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to rocket engineering, particularly to production of a protective-adhesive lacquer which is used as a primer for binding an inhibiting coating with the surface of the charge when inhibiting solid-propellant charge. The protective-adhesive lacquer contains 4,4',4"-triphenylmethane triisocyanate, dichloroethane, as an adhesive additive - a product of polycondensation of ethylene glycol, adipic acid and glycerine, with content of hydroxyl groups from 2.00 to 2.30 wt % and dibutyltin dilaurate as a curing agent.

EFFECT: obtaining lacquer with high capacity for protection from migration processes in the "fuel-inhibiting coating" system, which reduces smoke formation, increases adhesion strength between the inhibiting coating and the surface of the propellant charge, which contains polyformaldehyde derivative-based components, avoids use of an additional cellulose acetate-based primer, which ensures strong adhesion of solid-propellant charge pellets with the inhibiting coating for the guaranteed storage life of the charge and which enables to use readily available domestic raw materials.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to polymeric heat-reflecting coating compositions which are applied on inflatable structures, protective and rescue equipment (airstairs for civil aviation, floatation rafts, airships, pneumatic tents, heat-reflecting screens, shields for firefighters), consisting of airtight elastic material based on fabric (capron, nylon, lavsan, high-strength aramid fibre SVM). The polymeric heat-reflecting coating composition contains urethane rubber, a hardener, aluminium paste and ethyl acetate.

EFFECT: production of cold-curable polymeric heat-reflecting coating composition, having high resistance to thermal radiation (up to 29 kW/m2) and minimum weight gain (thickness).

3 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to thermally solidificated covering substances based on aprotic solvents. Claimed is covering substance, which contains at least one compound (A), which contains hydroxyl groups, at least one compound (B) with free and/or blocked isocyanate groups, and at least one catalyst (D) for cross-linking silane groups, with one (i) or several components of covering substance containing hydrolysed silane groups and (ii) covering substance can be finally solidificated for covering, which has statistically distributed regions of lattice Si-O-Si. Obtained from covering substance solidificated coating has index of further cross-linking (PCI) lower than 2, with index of the further linking (PCI) being determined as coefficient from memory module E'(200) of finally solidificated coating, measured at 200°C, to minimum of memory module E'(min) of finally solidificated covering, measured at temperature higher than temperature of transition into glass-like state of Tg, and memory modules E'(200) and E'(min),as well as temperature of transition into glass-like state Tg are measured on free films with thickness of layer 40 mcm+/-10 mcm by means of dynamic mechanical thermal analysis (=DMTA) at rate of heating 2 K per minute and frequency 1 Hz and DMTA measurement on free films with thickness of layer 40 mcm+/-10 mcm, which are solidificated for 20 minutes at object temperature 140°C and after solidifying are kept for 8 days at 25°C, before carrying out DMTA measurements. Polyisocyanate (B) at least partially has one or several similar or different structural units of formula -X-Si-R"XG3-X, where G = identical or different hydrolysed groups, in particular alcoxy group, X=organic residue with from 1 to 20 carbon atoms, R" =alkyl, cycloalkyl, aryl or aralkyl, and carbon chain can be broken by non-adjacent oxygen groups, sulphur or NRa, with Ra=alkyl, cycloalkyl, aryl or aralkyl, x=0 to 2. Catalyst (D) is phosphorus-containing, and covering substance contains catalyst (D) from 0.1 to 10 wt % in terms of non-volatile components of covering substance. Also claimed are multi-step method of applying coating with application of claimed covering substance, as well as application of claimed method and versions of claimed coating application.

EFFECT: possibility to obtain transparent varnish coating with high resistance to atmospheric impact.

18 cl, 4 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to thermally solidificated covering substances based on aprotic solvent. Claimed is covering substance, which contains at least one compound (A), containing hydroxyl groups, at least one compound (B), containing isocyanate groups, and at least one phosphorus-containing catalyst (D) for cross-linking silane groups, with one or several components of covering substance containing between 2.5 and 97.5 mole %, counted for totality of structural units -N(X-SiR"x(OR')3-x)n(X'-SiR"y(OR')3-y)m (II) and -Z-(X-SiR"x(OR')3-x) (III), at least one structural unit of formula (II), where R'=hydrogen, alkyl or cycloalkyl, carbon chain can be interrupted by means of non-adjacent groups of oxygen, sulphur or NRa, with Ra= alkyl, cycloalkyl, aryl or aralkyl, X,X'=linear and/or branched alkylene pr cycloalkylene residue with from 1 to 20 carbon atoms, R" =alkyl, cycloalkyl, aryl or aralkyl, and carbon chain can be interrupted by means of non-adjacent groups of oxygen, sulphur or NRa, with Ra= alkyl, cycloalkyl, aryl or aralkyl, preferably R"=alkyl residue, n=0 to 2, m=0 to 2, m+n=2, x,y=0 to 2; and between 2.5 and 97.5 mole %, counted per totality of structural units (II) and (III), at least one structural unit of formula (III), where Z=-NH-, -NR-, -O-, R=alkyl, cycloalkyl, aryl or aralkyl, and carbon chain can be interrupted by means of non-adjacent groups of oxygen, sulphur or NRa, with Ra= alkyl, cycloalkyl, aryl or aralkyl, x=0 to 2, and X, R', R" have value, given above, and covering substance can be finally solidificated before covering, which has statistically distributed regions of lattice Si-O-Si. Also claimed are multi-step method of applying coating with application of claimed covering substance, as well as application of claimed method and versions of claimed coating application.

EFFECT: possibility to obtain transparent varnish coating with high resistance to formation of cracks under atmospheric impact and perfect resistance to scratching.

18 cl, 4 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to thermally solidificated covering substances based on aprotic solvent. Claimed is covering substance, which contains at least one compound (A), containing hydroxyl groups, and at least one compound (B), containing isocyanate groups, and one or several components of covering substance have between 2.5 and 97.5 mole % counted per totality of structural units (I) and (II), at least one structural unit of formula (I), where R'=hydrogen, alkyl or cycloalkyl, and carbon chain can be interrupted by non-adjacent groups of oxygen, sulphur or NRa, with Ra= alkyl, cycloalkyl, aryl or aralkyl, X,X'=linear and/or branched alkylene or cycloalkylene residue with from 1 to 20 carbon atoms; R"= alkyl, cycloalkyl, aryl or aralkyl, and carbon chain can be interrupted by non-adjacent groups of oxygen, sulphur or NRa, with Ra= alkyl, cycloalkyl, aryl or aralkyl, n=0 to 2, m=0 to 2, m+n=2, x,y=0 to 2; and between 2.5 and 97.5 mole % counted per totality of structural units (I) and (II), at least one structural unit of formula (II), where Z=-NH-, -NR-, -O-; R=hydrogen, alkyl, cycloalkyl, aryl or aralkyl and carbon chain can be interrupted by non-adjacent groups of oxygen, sulphur or NRa, with Ra= alkyl, cycloalkyl, aryl or aralkyl, x=0 to 2, and X, R', R" have value, given above; and polyol (A) contains at least one poly(meth)acrylate polyol. Also claimed are multi-step method of applying coating with application of said covering substance, method application and versions of coating application.

EFFECT: possibility of simple obtaining of transparent varnish coatings with high resistance to crack formation under atmospheric impact and perfect resistance to scratching, which do not cause any ecological problems.

15 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: polyurethane coating is made from a composition which contains refined castor oil, an ester, an antifoaming additive BYK-066 based on fluorine-modified polysiloxanes, aluminium oxide, titanium oxide, aerosil, a water adsorbent, an additive BYK-410 - urea in an organic solvent N-methylpyrrolidone, a curing agent isocyanate SUPRASEK 5025, which is 4,4'-diphenylmethane diisocyanate and additionally as filler - dolomite or zeolite or a mixture of dolomite and zeolite in ratio 3.25:1.

EFFECT: coating has high breaking strength and modulus of elasticity in tension, while providing sufficiently high deformation characteristics, particularly tensile elongation.

2 tbl

FIELD: construction.

SUBSTANCE: method to manufacture a coating includes preparation of a mixture by means of mixing of a filler from rubber crumb and a binder based on polyurethane. Simultaneously and separately from each other mixtures are produced for basic and upper layers, at the same time in the mixture for the basic layer they use a filler from rubber crumb with fraction of 2-12 mm, and in the mixture for the upper layer they use a filler from rubber crumb with fraction of 1-3 mm and a pigment dye. In process of mixture mixing for its upper layer it is compacted, afterwards the mixture for the upper layer is serially discharged into a die mould, then the mixture for the basic layer is discharged, and pressed under pressure with the help of a press, then maintained until full hardening, and the produced coating is discharged from the die mould.

EFFECT: high efficiency of coating manufacturing, higher reliability and durability of a coating, possibility to manufacture a double-layer coating with damping properties.

8 cl

FIELD: chemistry.

SUBSTANCE: formulation composition contains: A) 5-95 wt % at least one radiation-curable resin, B) 5-25 wt % silicic acid, C) 0.1-10 wt % at least one adhesion promoter, D) 5-90 wt % at least one radiation-curable reactive diluent, E) 0.5-5 wt % at least one dispersant. The adhesion promoter is selected form phosphoric acid and/or phosphonic acid and/or products of reaction thereof with functionalised acrylates. The composition can additionally contain photoinitiators, pigments and additives, selected from diffusion promoting agents, delustering agents and degassing agents. The compositions are used as a primer, an intermediate layer, coating varnish and/or clear varnish, as well as for making coatings via a coil coating technique.

EFFECT: coatings have flexibility, thereby providing excellent protection of metal substrates from corrosion.

18 cl, 2 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a self-crosslinking binder for coating compositions containing an aqueously dispersed polymer component A having at least one carbonyl group of the ketone or aldehyde type per molecule, and a component B having at least two hydrazine or hydrazide groups per molecule, and at least one structural unit -NR1-NR2-CHR3-CHR4-NH-R5 (I), where the radicals R1, R2, R3 and R4 are each individually selected from a group consisting of a hydrogen radical and a linear or branched alkyl radical having from 1 to 10 carbon atoms, R3 and R4 may additionally be selected from a group consisting of aryl and alkylaryl radicals having from 6 to 15 carbon atoms, and from oxyalkyl radicals with 1 to 10 carbon atoms, where oxy groups may be inserted into the alkyl chain or at the end of an alkyl chain, and R5 is selected from a group consisting of a hydrogen radical, alkyl radicals which may be linear, branched or cyclic and may have from 1 to 10 carbon atoms, and residues of formula -(CH2)n-CO-O-X, where n is an integer of from 1 to 6, and X is a residue of a polyatomic alcohol or phenol. A method of producing such a binder is also described.

EFFECT: producing a coating binder which is self-crosslinking when drying, having fast drying properties and improved chemical resistance and weather resistance.

17 cl, 5 ex, 5 tbl

FIELD: construction.

SUBSTANCE: invention represents an emulsion, in which oligomers with terminal isocyanate groups are a dispersion medium, and a disperse phase is a solution or a dispersion produced as a result of mixing a lime solution with calcium hydroxide content of 10-70 wt % with glycerine in the amount of 1-250 wt parts per 100 wt parts of calcium hydroxide, besides, the disperse phase content in the composition makes 1-55 wt %.

EFFECT: development of a cheap and easy to apply composition, coatings from which have high adhesion to moist metal or concrete surfaces, have proper adhesion to concrete applied onto them, are hardened with specified speed at temperature from zero and above, inhibit processes of metal corrosion and have low elasticity module.

1 tbl

FIELD: chemistry.

SUBSTANCE: disclosed is alkoxy-modified silsesquioxane, containing one or more compounds selected from alkoxy-modified silsesquioxanes having formula and mixtures thereof, where w, x and y are molar ratios, y is not equal to zero, either w or x, but not both simultaneously, can be equal to zero and w+x+y=1.0; R1, R2 and R3 are identical or different and are selected from a group comprising (i) H or alkyl C1-C20 groups, (ii) cycloalkyl C3-C20 groups, (iii) alkylaryl C7-C20 groups and (iv) R5X, where X is selected from a group comprising CI, Br, SH, SaR6, NR62, OR6, CO2H, SCOR6, CO2R6, OH, olefins, epoxides, amine groups, vinyl groups, acrylates and methacrylates, where a = 1-8, R5 is selected from alkylene C1-C20 groups and cycloalkylene C3-C20 groups, and R4 and R6 are selected from alkyl C1-C5 groups, cycloalkyl C3-C20 groups and alkylaryl C7-C20 groups. The invention also discloses a method of producing said alkoxy-modified silsesquioxanes, a vulcanised rubber mixture containing said silsesquioxanes and a method of preparing said mixture, as well as a pneumatic tyre made from said vulcanised rubber mixture.

EFFECT: low release of volatile organic compounds when preparing and processing vulcanised rubber mixtures which are prepared using the disclosed alkoxy-modified silsesquioxane, improved rubber reinforcement, high degree of the polymer-filler interaction and low viscosity of the said vulcanised rubber mixture, which enables to make pneumatic tyres with improved operational properties.

80 cl, 4 dwg, 36 tbl, 26 ex

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