Method of all-purpose modifying agent production applied for polyurethanes and foamed polyurethanes

FIELD: inorganic chemistry.

SUBSTANCE: invention refers to polymer chemistry particularly to polyurethanes and foamed polyurethanes processing technologies. Described method of all-purpose metal-complex modifier for polyurethane implies solution of metal halogenide in solvent. This method is characterized by solution of metal halogenide having variable valence of stable oxidation level, for example manganese chloride (II) tetrahydrate, in N,N-dimethylethanolamine and ε-caprolactam at mole ratio of metal halogenide: dimethylethanolamine: ε-caprolactam 1:5:5-20. Modifying agent is added to laprole component. Polyurethanes produced with modifying agent are characterized by improved physical-mechanical properties such as ultimate breaking stress, rigidity at deformation 40% and comfort coefficient.

EFFECT: production of polyurethanes with improved physical-mechanical properties; increased comfort coefficient rigidity and ultimate breaking stress.

1 cl, 6 tbl

 

The invention relates to the chemistry and technology of polymers, namely, to obtain polyurethanes and polyurethane foams for the automotive and furniture industries.

Known modifier additive for polyurethane, which is obtained by dissolving a halide of the metal - chloride of divalent copper in a solvent, the solvent used is N,N`-diethylhydroxylamine at a molar ratio of bivalent copper chloride and solvent 1:1, and the modifying additive charge in the amount of 2.5% to 3% by weight of polyurethane, patent RU 2028318, CL 08 G 18/77, 18/22, 79/00, 1995.

The disadvantage of the modifying additive is that the modifying agent is used in a large number of 2.5-3%, which significantly reduces thermo-mechanical properties of polyurethanes.

The closest in technical essence and the achieved effect is a method for modifying additives for polyurethanes by dissolving a halide of a metal of variable valence in ethanolamine when the molar ratio of the halide metal : ethanolamine 1:5-10, and the modifying additive charge in the amount of 0.05 to 1.5%, see patent RU 2193572, CL 08G 18/77, 18/83, 2000.

The objective of this invention to provide a modifying additives for polyurethane foams, which allows to improve the physico-mechanical t the VA, such as ultimate tensile stress tensile, hardness at 40% deformation, coefficient of comfort.

The technical problem is solved by a method of obtaining modifying additives for polyurethane foam by dissolving the manganese halide in dimethylethanolamine and ε-caprolactam in a molar ratio of the halide metal : dimethylethanolamine : ε-caprolactam, which is 1:5:5-20.

Technical solution allows to improve the physico-mechanical properties such as ultimate tensile stress tensile, hardness at 40% deformation, the comfort factor by 20%.

Characteristics of substances used in the preparation of the modifying additives for polyurethane foams, are shown in table 1.

The modifying additive obtained by the claimed method, you can enter both in rigid and flexible molded polyurethane foams and flexible polyurethane foam (foam rubber).

Example 1. The modifying additive was prepared as follows: take a 0.05 g of manganese chloride (II) tetrahydrate and dissolved in N,N-dimethylethanolamine. The molar ratio of chloride manganese (II) tetrahydrate : N,N-dimethylethanolamine is 1:5. Then injected at a temperature of 70° ε-caprolactam so that the molar ratio of the halide metal : dimethylethanolamine : ε-caprolactam is 1:5:5-20. Chloride manganese (II) tetrahydrate status is made 0.01 to 0.05% by weight of a polyurethane system. The modifying additive is introduced into leprology component (component A) at a temperature of 40°and With stirring 3000 rpm Formulation shown in table 2.

Example 2. The method is carried out analogously to example 1, the difference is that the modifying additive is introduced into Laprol 5003.

Example 3. The method of obtaining modifying additives as in example 1, the difference is that the modifying additive is introduced into the component "Specflex NF 374 Polyol" company "Dow".

Example 4. The method of obtaining modifying additives as in example 1, the difference is that the modifying additive is introduced into Laprol 504 at a temperature of 40°and With stirring 3000 rpm Modified so Laprol 373 is used to produce rigid foam density 30 kg/m3. The recipe given in table 3.

Example 5. The method of obtaining modifying additives as in example 1, the difference is that the modifying additive is introduced into polyethylenbutylenglycoladiapinate (PEBA). Chloride chloride manganese (II) tetrahydrate take in the amount of 0.025% by weight of polyurethane. Polyester is heated to 80°C, the mixture is stirred under vacuum and the same temperature for 40 minutes. To obtain a polyurethane, in this case, thermoplastic elastomer as the original take a prepolymer obtained by the interaction of PEBA and 4,4'-difenilmetana isocyanate when the molar ratio of polyester to isocyanate 1:3. The modified prepolymer vacuum for 10-15 minutes at the same temperature, and then enter the chain extension of 1,4-butanediol in the calculation of 1.02 mol. The reaction mass is stirred for 1-2 minutes and poured into a mold. The form is placed in a heat chamber at a temperature of 90-100°With within 24 hours.

Thus, the modifying agent can be used for different structure and composition of polyurethanes. The tests were performed after two weeks of exposure of samples under normal conditions in accordance with GOST 15873, formal density - GOST 409, ultimate tensile stress - GOST 15873, stiffness in compression - GOST 6-55-45, hardness shore - 263, the elastic rebound - GOST 6950. The results of the mechanical test samples of polyurethane foam obtained by the present method and the method prototype is presented in table 4-6.

The experimental data shown in the table, using the modifying additive obtained by the present method, indicate the improvement of physico-mechanical properties such as ultimate tensile stress tensile, hardness at 40% deformation and the comfort factor by 20%.

Table 1
Name chemicalPhysico-chemical characteristics
Chloride manganese (II) tetrahydrateCrystalline substance, pink, MM=197,9, Tmoney=108°C. GOST 4879.
ε-caprolactamColourless crystals, TPL=68-70°C. GOST 7850.
N,N-dimethylethanolamineThe light yellow liquid, MM=89,137, d25=0,887, TKip=139°C. GOST 6-02-1086.

Table 2
Recipe for flexible molded polyurethane foam
ComponentNumber, wt.%.
Laprol 5003100
Water3,5
DEoA 100%0,6
DC 25251,2
Polycat-150,25
NE10700,6
NE2100,7
MDIIndex 80-105
Note: the recipe used catalysts firm "Air Products".

Table 3
The formulation for rigid polyurethane foam
ComponentNumber, wt.%.
Laprol 37380
20
Water3,5
Tegoamin DMCHA1
Tegostab In 84601.5
MDI (NCO-31%)141
Note: the recipe used catalysts firm "Air Products".

td align="center"> %
Table 4
IndicatorsUnitsFlexible molded polyurethane foam (table 2)Flexible molded polyurethane foam company "Dow" Specflex NF 374 Polyol
Without modifierWith modifier (of 0.025 wt.%)Without modifierWith modifier (of 0.025 wt.%)
The number of isocyanate (polyol - 100)Parts56565656
Apparent densitykg/m345454848
The tensile strengthkPa130155160182
Elongation%110105110105
Resilience (ball rebound)63636363
Residual deformation when compressed to 50%%5,95,35,65,0
Hardness at 40% deformationkPaof 5.46,06,06,5
SAG-factorsrvc. units3,24,1the 3.84,5

Table 5
IndicatorsUnit dimensionRigid polyurethane foam (table 3)
Without modifierWith modifier (of 0.025 wt.%)
Apparent densitykg/m33636
The proportion of closed cells%9099
Destructive voltagekPa0,190,25

Table 6
IndicatorsUnitsSegmented polyurethane
PBA + MDI + BDPBA + MDI + BD + 0,025% MnCl2
Ultimate tensile stress at 100%MPa8,110,8
Ultimate tensile stress at 200%MPa11,013,5
Ultimate tensile stress at 300%MPathe 15.618,7
Destructive voltageMPa31,345,2
Elongation%516500
The shore hardnesssrvc. units8693
The elastic rebound%46,044,0

The method of obtaining universal modifying additives for polyurethanes and polyurethane foam by dissolving the metal halide in a solvent, characterized in that use a halide of a metal of variable valence stable oxidation state, and as a solvent using N,N-dimethylethanolamine and melt ε-caprolactam in a molar ratio of the halide metal: N,N-dimethylethanolamine: ε-caprolactam, which is 1:5:5-20.



 

Same patents:

FIELD: physics.

SUBSTANCE: invention refers to size control method for disperse particles in thermoplastic elastomer composition. Disperse particle size control method includes mixing in melt of the following: (A) halogenated isobutylene elastomer, (B) polyamide, (C) dispersion supplement, and (D) traditional additives. Resulting mixture is subjected to dynamic vulcanization thus forming dynamically vulcanized resin mix; halogenated isobutylene elastomer is dispersed in polyamide matrix at volume-averaged diameter of dispersion particles Dv from 0.01 to 2.5 μm.

EFFECT: thermoplastic elastomer composition with controllable size of disperse elastomer particles and improved durability and impermeability.

8 cl, 2 dwg, 3 tbl, 13 exrsid7429359

FIELD: chemistry.

SUBSTANCE: invention relates to rubber-processing industry, in particular, to formula of non-vulcanisable polyisobutylene-based rubber composition, and can be used for manufacturing highly acid-, alkali- and oxidant-resistant sealing materials, as well as sheet anti-corrosive and waterproofing materials for chemical equipment and built structures. Non-vulcanisable rubber composition contains, parts by weight: polyisobutylene P-200-100, when required, semi-active technical grade carbon P-514-0-10, inactive inorganic filler - talcum powder, kaolin or mixture thereof -250-370, rubber resin SKD-2-10-20.

EFFECT: less adhesion to working surfaces of rubber-processing equipment; improved physical and chemical properties, corrosion resistance of the composition being retained.

6 tbl, 3 ex

FIELD: chemistry of polymers.

SUBSTANCE: invention proposes a polymeric composition for preparing film materials, linoleum, insulation, protective envelopes, wires, cables and other articles of technical designation. The composition comprises polyvinyl chloride, lime, lithopone, soda, complex plasticizing agent consisting of dioctyl phthalate and product prepared by interaction of higher fatty chlorinated acids of the general formula: R(CHCl)nCOOH wherein R means aliphatic radical comprising 9-22 carbon atoms; n = 1-4 that represents chloroparaffin oxidate CHP-30 in chloroparaffin CHP-30 medium and ethyl or butyl alcohol taken in the mass ratio = 5:1. Invention provides enhancing capacity for plasticity, physicomechanical properties of polymeric materials, expanding assortment of plasticizing agents and reducing toxicity of polymeric composition.

EFFECT: improved and valuable properties of composition and articles.

1 tbl

FIELD: polymer materials.

SUBSTANCE: thermoplastic elastomer composition contains dynamically vulcanized mixture of partially vulcanized halogenated isobutylene elastomer, polyamide, and conventionally utilized additives, wherein stretching elasticity modulus at 100% elongation for elastomer distributed in polyamide is less than 0.60 MPa and wherein halogenated elastomer is, in particular, brominated or chlorinated one. Preparation of thermoplastic elastomer composition involves dynamic vulcanization of halogenated isobutylene elastomer, polyamide, and conventionally utilized additives at temperature lower than 185°C.

EFFECT: improved durability and flexibility of composition.

11 cl, 2 tbl, 2 ex

FIELD: chemistry of polymers.

SUBSTANCE: invention relates to preparing shock-resistant antifreeze polypropylene compositions. The shock-resistant antifreeze composition comprises the following components, wt.-%: isotactic polypropylene, 77.0-85.7; elastomer, 14.0-18.0, wherein poly-1-octene with the intrinsic viscosity value in the range from 4.0 to 12.0 dl/g is used; thermostabilizing agent, 0.1-0.5, and special additives, the balance. Shock-resistant antifreeze polypropylene composition is characterized by improved melt fluidity indices that providing the improved processing capacity. Invention can be used in automobile manufacture, building and light industry for production of articles of technical designation exploited at reduced temperatures.

EFFECT: improved and valuable technical properties of composition.

2 tbl, 7 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to vehicles and lifting-and-shifting machines as well as to allied technical fields wherein friction phenomenon is used to achieve a positive effect. Composition according to invention contains, wt %: binder based on rubbers SKI-3 and SKD 11.5-13.0, wollastonite 50.0-54.5, barite 23.5-24.5, graphite 3.0-3.7, carbon black 1.5-1.9, sulfuric curing system: sulfur 3.5-4.5, captax 0.2-0.5, thiuram 1.2-1.7, zinc oxide 0.3-0.7, and, above 100%, modifier selected from group: stearic acid, oleic acid, stearic acid/oleic acid mixture at ratio between 40:60 and 0.02:0.5 or above mixed modifier with terephthalic acid in total amount 3 wt parts or stearic acid in amount 0.02-0.5 wt parts per 100 wt parts rubber mixture.

EFFECT: improved physicochemical properties and reduced rheological characteristics of composition.

2 tbl, 2 ex

FIELD: chemistry of polymers.

SUBSTANCE: invention relates to an elastomeric composition that can be used in making pneumotires or intermediate products for pneumotires. The composition is based on at least one diene elastomer, inorganic filling agent as an enhancing filling agent, polyfunctional organosilane, namely hydroxysilane of the general formula (I) given in the invention description as a binding agent (for system inorganic filling agent/diene elastomer) comprising at least two functional groups designated as "X" and "Y" that can be grafted to elastomer by one side using function X, and to inorganic filling agent by other side using function Y that represents hydroxysilyl function (≡Si-OH) and wherein organosilane is represented by hydroxysilane polysulfide of the general formula (I), and wherein the amount of inorganic enhancing filling agent is from 10 to 200wpe (weight parts per 100 weight parts of elastomer), and the amount of hydroxysilane polysulfide is in the range from 1 to 20wpe. Also, invention relates to a method for preparing the claimed elastomeric composition showing the improved kinetics of vulcanization by thermomechanical stirring components of the composition for one or two steps up to achievement of maximal temperature from 110 to 190°C. Also, invention relates to using this composition for manufacturing pneumotires or intermediate products designated for pneumotires, for example, protectors, sublayers, sides and so on, and to a pneumotire and an intermediate product for pneumotire containing such elastomeric composition, to a protector for pneumotire made of this composition and to pneumotire containing such protector. Also, invention relates to using a polyfunctional organosilane as a binding agent and to a method for binding inorganic and diene elastomer in an elastomeric composition by polyfunctional organosilane. The claimed elastomeric composition provides satisfactory reserve of safety with respect to the burning problem, it possesses a lower value of Mooney plasticity resulting to good ability for treatment in crude state and possesses the improved hysteresis properties and the improved the conversion constant rate and therefore vulcanization can be carried out for significant shorter time. Protectors made of the proposed composition possess low resistance to rolling motion and enhanced abrasion resistance.

EFFECT: improved and valuable properties of mixture.

32 cl, 2 tbl, 2 dwg

FIELD: manufacture of building materials; manufacture of building parts, articles and structures for encapsulation of radioactive and highly toxic waste.

SUBSTANCE: proposed composition contains the following components, mass-%: sulfur, 53.27-53.32; ground quartz sand at specific surface of 180 m2/kg, 45.4-45.50; kerosene, 1.06-1.07; rubber CKДH-H, 0.22-0.11. Encapsulation is carried out by combining the composition with waste followed by hardening. Containers may be also made from composition for burying the waste in geological formation.

EFFECT: reduced water absorption at retained high compressive strength.

2 tbl

FIELD: biologically active polymer materials.

SUBSTANCE: invention relates to polyethylene compositions showing bactericidal activities and intended for manufacture of various products through molding and extrusion while being suitable for fabrication of nontoxic packing materials for foods and medical tools, for fabrication of medical- and sanitary-destination molding equipment, toys, furniture, plates and dishes, fibers, and textile articles. Composition according to invention comprises high-pressure polyethylene (71.00-99.04%) and bactericidal additive, the former containing 0.10 to 5.00% silver phosphate, silver thiosulfate, or silver stearate. Composition further contains 0.06 to 1.00% of oleic acid amide (Finawax O), 0.20-2.00% calcium carbonate (Omyacarb 2XKA), 0.50-20.00% ethylene/vinyl acetate copolymer, and 0.10-1.00% silica.

EFFECT: imparted high bactericidal activity extending functional qualities of composition allowing use thereof in various industry fields.

3 cl, 5 tbl, 4 ex

Rubber compound // 2318842

FIELD: rubber industry.

SUBSTANCE: invention is directed to preparation of rubber compounds based on general- and special-destination rubbers using naturally occurring wollastonite as filler and can be used in manufacture of technical-destination rubber goods, elastomeric compositions, polymeric rolled roofing and waterproof materials, and the like. Rubber compound is prepared by mixing general- or special-destination rubber, sulfur-containing vulcanization agent, extender: carbon black, zinc oxide, stearin. Functional additive is further added in the form of organosilane-modified wollastonite or wollastonite having needle structure with characteristic ratio from 10:1 to 20:1 and diameters of equivalent sphere D50=3-15 μm, D98=20-100 μm, D10=1-4 μm. Rubber compound may also contain 5 wt parts of paraffin-naphtene oil or 0.1 wt parts of stabilizer.

EFFECT: improved complex of technological and user's properties of rubber compound: strength, elasticity, and tear resistance.

14 tbl, 13 ex

FIELD: chemistry of polymers, chemical technology.

SUBSTANCE: invention relates to mixtures consisting of blocked polyisocyanates designated as hardening agents in monocomponent lacquers of hot drying and comprising: (a) blocked polyisocyanate based on 1,6-diisocyanate hexane; (b) blocked polyisocyanate based on cycloaliphatic diisocyanates chosen from group comprising 1-isocyanato-3,3,5-trimethyl-5-ixocyanatomethylcyclohexane, bis-(4-isocyanatocyclohexyl)methane, 2,6-bis-isocyanatonorbornane, 2,5-bis-isocyanatonorbornane, 1,4-bis-isocyanatomethylcyclohexane and their mixtures, and (c) 3,5-dimethylpyrazole as a single blocking agent of agent of polyisocyanates named in (a) and (b). Blocked polyisocyanates are taken in the weight ratio (a) : (b) = 1:(1.8-2.2). Using mixtures of blocked polyisocyanates provides preparing clear lacquers with good acid resistance, stability against scratching and thermal yellowing.

EFFECT: improved and valuable properties of agents.

1 cl, 6 ex

The invention relates to the technology of polyurethanes, which can be used as adhesives, paints, construction materials

The invention relates to the chemistry of polymers, namely, anti-static polyurethane, which can be used for the manufacture of anti-static products and coatings, in particular rollers, pulleys and couplings in textile machinery

FIELD: chemistry of polymers, chemical technology.

SUBSTANCE: invention relates to mixtures consisting of blocked polyisocyanates designated as hardening agents in monocomponent lacquers of hot drying and comprising: (a) blocked polyisocyanate based on 1,6-diisocyanate hexane; (b) blocked polyisocyanate based on cycloaliphatic diisocyanates chosen from group comprising 1-isocyanato-3,3,5-trimethyl-5-ixocyanatomethylcyclohexane, bis-(4-isocyanatocyclohexyl)methane, 2,6-bis-isocyanatonorbornane, 2,5-bis-isocyanatonorbornane, 1,4-bis-isocyanatomethylcyclohexane and their mixtures, and (c) 3,5-dimethylpyrazole as a single blocking agent of agent of polyisocyanates named in (a) and (b). Blocked polyisocyanates are taken in the weight ratio (a) : (b) = 1:(1.8-2.2). Using mixtures of blocked polyisocyanates provides preparing clear lacquers with good acid resistance, stability against scratching and thermal yellowing.

EFFECT: improved and valuable properties of agents.

1 cl, 6 ex

FIELD: inorganic chemistry.

SUBSTANCE: invention refers to polymer chemistry particularly to polyurethanes and foamed polyurethanes processing technologies. Described method of all-purpose metal-complex modifier for polyurethane implies solution of metal halogenide in solvent. This method is characterized by solution of metal halogenide having variable valence of stable oxidation level, for example manganese chloride (II) tetrahydrate, in N,N-dimethylethanolamine and ε-caprolactam at mole ratio of metal halogenide: dimethylethanolamine: ε-caprolactam 1:5:5-20. Modifying agent is added to laprole component. Polyurethanes produced with modifying agent are characterized by improved physical-mechanical properties such as ultimate breaking stress, rigidity at deformation 40% and comfort coefficient.

EFFECT: production of polyurethanes with improved physical-mechanical properties; increased comfort coefficient rigidity and ultimate breaking stress.

1 cl, 6 tbl

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: 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 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 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

Up!