Complex anti-corrosion polyurea-urethane coating

FIELD: construction.

SUBSTANCE: anti-corrosion protective coating consists of the first element - a single-component moisture-hardened isocyanate primer, which contains at least 75 wt % of a nonvolatile residue and 6…8 wt % of isocyanate groups. The second element is a thick-layer external coating, to produce which a double-component polyurea-urethane mastic is used, containing an isocyanate prepolymer on the basis of diphenyl methane diisocyanate with mass portion of NCO-groups making 15…17% and dynamic viscosity at the temperature of (20±3)°C - 3…10 Pa·s, and the component it hardens with active atoms of hydrogen with hydroxyl number making 95…105 mgKOH/g, mass portion of total titrated nitrogen of 4.2…4.5%, containing a mixture of simple or complex polyester diol with molecular weight of 800…1000 c.u., sterically hindered diamine with amine number of 12…16.7%, oxypropylated ethylene diamine with hydroxyl number of 640…800 mgKOH/g and liposoluble organic pigments, at the ratio of isocyanate prepolymer to a component with active atoms of hydrogen, which ensures hardening of a thick-layer external coating until the required level of operational characteristics is produced.

EFFECT: coating ensures high level of adhesion, resistance to cathode lamination with preservation of the main physical-mechanical indices and ecological safety in process of insulation works.

3 tbl

 

The present invention relates to an integrated anti-corrosion coating systems incorporating a protective primer layer and an outer polymeric coating barrier type, intended in particular for corrosion protection of metal pipes, fittings fittings (fittings, valves and Assembly of main gas and oil pipelines underground and underwater (depth to bottom) gaskets, piping and valves of the compressor and pumping stations, underground gas storage and oil storage tanks with an operating temperature range from minus 30°C to plus 60°C in a factory (basic) or route of application and their construction, reconstruction and capital repairs.

Comprehensive anti-corrosion coatings include two elements:

thin - film primer film based primer that protects the metal surface from the corrosive environment and provide reliable adhesion between the metal and the outer thick polymer coating;

- thick outer polymer coating barrier of the type that protects the primer film from mechanical damage caused, in particular, with the development of the soil, the influence of ground water, temperature extremes and determines, ultimately, General protect the local anti-corrosion properties.

Thus, the operational reliability of the integrated anti-corrosion coatings depends on the aggregate properties of the system "primer - outer polymer coating".

According to requirements of GOST R 51164-98 "Truboprovod steel trunk. General requirements for corrosion protection" and "Technical requirements "Gazprom" to the outer coatings on the basis of thermoreactive materials for corrosion protection of pipes, fittings, valves and Assembly units of pipelines with operating temperatures from minus 20°C to + 100°C (2 August 2005) of 14 regulated quality indicators of the outer protective coating of main gas and oil pipelines are the most important indicators that determine the long-term protective properties of complex coatings used in corrosive environments when exposed to an electric potential, are:

- the value of the initial adhesion of the coating to the metal and reduce its level after exposure of metal samples coated in water for 1000 hours at a temperature of (60±3)°C;

- resistance of the coating to the cathode flaking, determined after exposure of samples in 3%wage sodium chloride solution at a potential of polarization of 1.5 V at a temperature of (20±3)°C for 30 days;

- the level of physico-mechanical characteristics of the polymer p is offset (impact strength, capacity, penetration and elongation at break).

Other quality indicators, as a rule, during operation of the pipeline does not undergo significant changes.

The first two significant indicator (adhesion and cathodic delamination) is determined by the quality of the primer, and physico-mechanical characteristics are determined by the quality of the thick polymer coating barrier type.

Thus, selection of the optimal combination of primers and components of the polymer thick-film coating is a complex technical problem that can be solved only on the basis of numerous and long tests.

In addition, rheological properties and kinetics (speed) curing both elements anticorrosive coating systems, especially the outer layer should provide the possibility of applying progressive mechanical methods.

Known comprehensive anti-corrosion coating, developed in Japan (company "KAWAKAMI PAINT Co., Ltd."), meet the specified requirements and consisting of epoxysilane primer (primer "UP to 1000"), a composition which includes a polyisocyanate curing agent and curing them epoxypropyl obtained by reacting epoxy resin with low molecular weight diola in the environment of organic rest is rites with the additional introduction of a number of technological and functional additives, when the ratio of hardener to epoxypropyl providing an excess of hydroxyl (Oh)groups: the molar ratio of NCO/OH=0,6 0,9...and external politicalinfluence thick coating (mastic "FRUCS-1000A")containing isocyanate forprimary curing agent (product of the interaction of MDI with diola) and curing them component to active hydrogen atoms is a mixture of polyoxyalkylene or polyoxyalkylene with hydroxyl (OH-) and/or amine (NH2-number no more than 170 mgKOH/g, an aromatic spatial obstructed polyamines and coal tar, taken in an amount of 2.5...to 50.0 parts by weight per 100 parts by weight of the composition. This composition also includes up to ten different functional and technological additives (1).

Primer "UP to 1000" is applied normal metodami air and airless spray. Mastic "FRUCS-1000A" is applied only by the method of hot airless spray pressure cleaning equipment with separate flow components with mixing directly at the head of the spray gun, as the pot life of the mixture components does not exceed 5 seconds.

The disadvantages of the above complex polimetilvinilovogo cover are: complexity (complexity) on the composition as a primer composition, and casinobase mastic (both - both supplied in two packages systems which); a little while viability casinobonuses mastic after mixing the components, which limits the choice of the type of the spray gun. In addition, used in casinobonuses mastic coal oil carcinogenic in relation to the human body and environmentally dangerous.

Closest to the claimed technical substance and component elements composition of the coating is a domestic complex corrosion politicalinfluence floor (BEURS"), consisting of the two packages of epoxy primer ("Primer-MB"), including component And the solution of the modified epoxy resin and component B is an amine curing agent, and the two packages polemicaminareti mastic (BIUR") as casinobonuses outer coating comprising isocyanate forprimary (preprimary) curing agent with a content of isocyanate (NCO) groups 13...14% and curing them component with the active hydrogen atoms contained in the hydroxyl (Oh-) and amine groups (NH2-; -NH-) of epoxyphenols and polyamines, dissolved in average fraction of coal or shale resin with a viscosity of 18...25 cSt and basicity of 1.3...1.5 mg·EQ/g) HCl (2).

"Primer MB is applied to a conventional air or airless spray. Mastic "BIUR"as mastic "FRUCS-1000A",is applied only by the method of hot airless spray pressure cleaning equipment with separate flow components (base and hardener) mix directly into the head of the spray gun, as inexposable of the mixture components at the temperature of application (50...70°C) less than 10 seconds.

Floor-prototype, as previous similar floor meets the complex characteristics with the requirements of JSC "Gazprom" and JSC "AK Transneft". However, it mnogokomponentnoi composition as a primer composition, and casinobonuses mastic (both both supplied in two packages system). In addition, little time, vitality mastic "BIUR" limits the choice of the type of spraying device, and included in the basis of this mastic coal or shale oils are carcinogenic and environmentally harmful. The disadvantages of the coverage of the prototype can be considered a fairly large drop of adhesion after long-term aging in hot water.

The technical problem to be solved in the framework of the present invention is to provide a comprehensive corrosion-resistant polymer coating that meets the requirements of an outer protective coating of main gas and oil pipelines, with a simplified component elements composition of the coating, exception carcinogenic coal and shale oils from their compositions, the increase in the time the vitality casinobonuses mastic, and with increased adhesion and resistance to cathodic otstaiva the Oia for the long-term conservation of the main physico-mechanical characteristics and other protective properties.

Addressing the above objective is achieved due to the fact that in contrast to the known corrosion-resistant polymer coating of the prototype, which consists of two elements: a thin primer coating obtained on the basis of dvuhyakornoe epoxy primer, and a thick outer protective coating obtained on the basis of two-component polemicaminareti mastic offer a comprehensive politicalinfluence coating as a primer layer contains the coating obtained on the basis of onecomponent moisture curing isocyanate primer, containing not less than 75% (by weight) of solids and mass fraction of isocyanate (NCO) groups 6...8%, and to obtain a thick outer element coverage use two polimochevinnykh mastics, including the isocyanate prepolymer based diphenylmethanediisocyanate with mass fraction of NCO-groups - 15...17% and a viscosity of 3...10 PA·s at (20±3)°C and cured them mixed composition with active hydrogen atoms with a hydroxyl number of 95...105 mgKOH/g, mass fractions of total titratable nitrogen...4,5 4,2%, comprising the following ingredients in their mass ratio (wt.%):

weight 800...1000 $
- simple or complex polyetherdiol with molecular
-55...60
spatial hindered diamine with amine number 12...16,7%-35...40
- N,N,N',N'-oxopropylidene the Ethylenediamine
hydroxyl number 640...800 mgKOH/g- 3...4
- organo(fat)soluble pigments- the rest is up to 100

when the ratio of the isocyanate prepolymer: composition with active hydrogen atoms, providing the curing of thick coating to obtain the desired level of physical and mechanical characteristics and long-term protective properties.

Recommended thickness of the primer 40...80 μm (dry) and 2...4 mm thick element of the cover. Drying time between covering elements 3...12 hours at a temperature of (20±3)°C.

Moisture curing primer coating is applied by conventional methods of air or airless spray using a publicly available sprayers, as well as a roller or a brush. The two packages polimochevinnykh mastic with a 100%dry residue is applied by hot (temperature components 50...70°C) airless spray with separate flow components and the mixing, either directly in the gun the spray system, "FUSION", or in a static mixer with a length of hose 1,5...3 m from it to a more simple design of the spray device, as the recipe suggested polemicaminareti mastic provides the pot life after mixing the components at a temperature of 50...70°C - 60...120 seconds, in contrast to 5...10 seconds viability known mastic coatings. As an apparatus for airless spray use a 2-To the high-pressure devices company "WIWA" (Germany) or "GRACO (USA).

Featured molar ratio between the components of the mastic (the isocyanate prepolymer: composition with active hydrogen atoms) 1,1 1,3.../1,0 NCO/SON+NH2depending on the desired stiffness comprehensive coverage, which determines the mass ratio between the components as...1,4 1,2/1,0.

As polyetherdiol with a molecular mass of 800...1000 USD using either polyethyleneglycoladipinate brand "PDA-800" (TU 38.103287-80), or polyoxypropyleneglycol brand "Laprol-1052 (TU 2226-411-05761784-95) or importee counterparts.

As spatial difficult diamines can be used, the following diamines:

Table 1
NameBrutto-formula Molecular mass, cuAmine number %
1,3,5-triisopropyl-2,4-diaminobenzeneC15H26N2234to 12.0
TriethylamineC12H20N219216,7
3,3'-dichloro-4,4' diamino-diphenylmethaneC13H12N2Cl2267to 12.0
4,4' diaminodiphenylmethaneC13H14N220813,5

As oxopropylidene Ethylenediamine with a hydroxyl number 640...800 mgKOH/g apply aminotetralin brands "Voranol-640", "Voranol-800" (import or domestic analogue "Supramol-294".

Of fat-soluble pigments can be used, in particular, the following organic dyes:

the organic dye soluble dark red "W" (THE 6-14-37-80);

- fat-soluble dye green "Color Index: Solvent Green 3 (import);

- fat-soluble dye blue "Color Index: Solvent Green 36" (import);

- fat-soluble dye 915 black Irosin") (import).

Above the limits of the ratios between the components of the composition with active hydrogen atoms has been determined by experiment and are optimal from the point of view of achieving positive technical effect, compliance with JSC "Gazprom" and JSC "TC Transneft" and minimal cost.

Composition with active hydrogen atoms is produced on standard capacitive chemical equipment by mixing all components at a temperature of 80...110°C to obtain a homogeneous solution.

As the isocyanate prepolymer based diphenylmethanediisocyanate, which is the hardener component mastic with active automati hydrogen, use of industrially produced terpolymer with mass fraction of NCO-groups 15...17% and a dynamic viscosity at (20±3)°C 3...10 PA·s, for example a prepolymer "Forpol-NCO (TU 2458-104-20504464-2006). Its density is in the range 1135 1145...kg/m3.

As odnoupakovochnye vlagootverzhdaemykh primer is also used industrially produced primers (primers) with a mass fraction of solids of not less than 75% and the mass fraction of NCO-groups 6...8%, for example primer "Forpol-Primer (TU 2458-114-20504464-2009), primer UR-0446 "Urethane-ANTICOR (TU 2313-025-20802364-2005), primer "STEELPAINT-EN-MICA" (import). However, their density and viscosity at (20±3)°C, respectively, the composition of Aut 1250...1380 kg/m 3and 450...550 MPa·S.

The comparison of the proposed comprehensive corrosion polimetilvinilovogo coatings with known similar coatings allows to make a conclusion about its compliance with the criterion of "Novelty", as in this case contains a new set of items covering tropicabana moisture curing isocyanate primer + two packages casinobonususa polimochevinnykh mastic), is used isocyanate forprimary hardener putty with a different content of NCO-groups (15...17% instead of 13...14%) and compiled a new set of ingredients of the composition with active hydrogen atoms.

The combination of the above innovations have led to a new effect to the receipt of protective anti-corrosion coatings with improved resistance to cathodic flaking, with a higher adhesion to the metal substrate and to the long-term preservation of its high level. In addition, the range of ingredients polemicaminareti mastic was not possible to unambiguously predict increased vitality mastic almost an order of magnitude after mixing its components, while maintaining the thixotropy mass after applying both horizontal and vertical metal products. The above demonstrates compliance with the proposed technical solutions Crete is a theory of "Inventive step".

The proposed formulation of the covering elements necessary to obtain a comprehensive anti-corrosion protective coating, focused on the use of ingredients of both domestic and imported, manufactured on an industrial scale, with application to obtain the standard chemical equipment. All components of the coatings are applied to the protected metal surface using the existing methods of coating machine or manually (primer). This allows you to make an informed conclusion about conformity of the proposed technical solution the criterion of "Industrial applicability".

The coating samples for testing on the metal plates of steel grade 3 size of 150×150×6 mm was prepared as follows: the primer was applied by the method of aerial spraying to obtain a dry layer thickness of 40...80 μm, followed by drying at a temperature of (20±3)°C for 5...6 hours;

- casinobonusguy mastic on the primed surface was applied using airless high-pressure apparatus company "WIWA" brand "DUOMIX-230" thick for 2.5-3.1 mm, the temperature of the components of the mastic was 50...70°C.

Free film casinobonuses mastic for carrying out physical and mechanical tests tensile received by spraying mastic on ftrap astoul plate.

The tests were carried out after 5 days after coating. All tests were carried out in accordance with the methods GOST R 51164-98.

Technical essence and benefits of the proposed comprehensive corrosion polimetilvinilovogo cover below illustrate experimental data.

EXAMPLES

Table 2 shows the formulation of the covering elements of the prototype and offer comprehensive coverage, and in table 3 the results of their tests.

Thus, as can be seen from the above data, the inventive integrated anticorrosion politicalinfluence floor, thanks to the simplification of the component composition, the combination of new elements and use in their recipes, new ingredients, allowed to achieve a higher stability of the protective polymer coating to the cathode flaking, a higher level of adhesion and the slow time while maintaining a high level of physical-mechanical properties and performance. In addition, casinobonususa mastic for outdoor coverage has increased the preservation of viability of the reaction mixture, which simplifies the hardware design of the technological process of applying a protective polymer clay is aqueous coating on gas and oil pipelines and their corresponding components. And the absence of elements of the cover carcinogenic coal and shale oils provides environmental cleanliness carried out insulation works.

The sources of information.

1. RF patent №2072905. IPC609D 175/02. Appl. 04.09.1992, application № 5052945/04; publ. 10.02.1997.

2. RF patent №2216561. IPC709D 5/08; 09D 175/04. Appl. 04.03.2002, application № 2002106194/04; publ. 20.11.2003 - prototype).

Comprehensive corrosion politicalinfluence coating for steel surfaces designed for corrosion protection of metal pipes, fittings, fittings, valves and Assembly of main gas and oil pipelines underground and underwater gaskets, piping and valves of the compressor and pumping stations, underground gas storage and oil storage tanks with an operating temperature range from minus 30 to plus 60°C in a factory, base or EN-route application during their construction, reconstruction and capital repair, which consists of two elements: a thin primer coating and two casinobonuses outer politicalinfluence coating comprising the isocyanate prepolymer based diphenylmethanediisocyanate and curing them component with the active hydrogen atoms of hydroxyl and amino groups, characterized in that for obtaining thin the primer layer coating using one-component moisture curing isocyanate primer, containing not less than 75 wt.% the dry residue and 6...8 wt.% isocyanate groups, and to obtain external casinobonuses layer using a two-component polemicaminareti mastic comprising the isocyanate prepolymer with a mass fraction of isocyanate groups 15...17% and a dynamic viscosity at a temperature of (20±3)°C 3...10 PA·s, and curing them composition with active hydrogen atoms with a hydroxyl number of 95...105 mgKOH/g, mass fractions of total titratable nitrogen...4,5 4,2%containing the following ingredients at a ratio, wt.%:

simple or complex polyetherdiol with a molecular mass of 800...1000 $ 55...60
spatial hindered diamine with amine number 12...16,7%35...40
N,N,N',N'-oxopropylidene the Ethylenediamine with a hydroxyl number 640...800 mgKOH/g3... 4
fat-soluble organic pigmentsthe rest is up to 100

when the ratio of the isocyanate prepolymer component with active hydrogen atoms, providing the curing of the thick outer coating to obtain the desired level of performance.



 

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13 cl, 5 ex, 4 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to a polyurethane dispersing resin, primarily having a polyurethane chain which contains hydrophilic groups of the side chain based on polyalkylene oxide, where groups of the side chain are covalently bonded to the polyurethane backbone chain, and where content of polyalkylene oxide in the polyurethane dispersing resin is at least 45 wt % and not more than 80 wt %. Polyurethane also contains hydrophobic groups on the side chain, which are covalently bonded to the polyurethane backbone chain. The invention also describes a coating composition containing said polyurethane dispersing resin, methods of preparing said composition and use of the polyurethane dispersing resin to prepare a composition for mixing with a pigment.

EFFECT: providing a polyurethane dispersing resin which enables to prepare concentrates of pigments, which can be easily included in a coating composition, in which pigments are stably dispersed, as well as possibility of obtaining pigment compositions with a wide range of pigments and obtaining dyes having excellent properties and stability, especially hard-to-disperse and stabilised pigments.

24 cl, 16 ex, 4 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a coating composition containing a) polyacrylate polyol obtained via polymerisation of unsaturated olefin monomers, where at least 40 wt % of the monomers include straight or branched alk(en)yl or alk(en)ylene groups, having at least 4 carbon atoms; b) polyether polyol obtained via esterification of component links having functional groups which form an ester, where at least 30 wt % of component links include straight or branched alk(en)yl or alk(en)ylene groups with at least 4 carbon atoms per functional group, which forms an ester, where he polyether polyol has hydroxyl number higher than 280 mg KOH/g and hydroxyl functionality of at least 2, and c) isocyanate-functionalised cross-linking agent. The invention also relates to a set of parts for preparing the coating composition and a method of applying the coating composition. The coating composition can be used as a top coating layer in multilayer paint coats, in finishing or reworking automobiles or large vehicles.

EFFECT: coating has high hardness, scratch resistance, lustre, longevity and wear resistance, chemical resistance and UV radiation resistance.

15 cl, 6 tbl

FIELD: chemistry.

SUBSTANCE: composition includes a polymer mixture which contains a) an aqueous dispersion of at least one polysiloxane and b) an aqueous dispersion of at least one polyurethane, in which content of the said at least one polysiloxane polymer varies from approximately 50 to 85 wt %, and content of the said at least one polyurethane varies from approximately 15 to 50 wt %, in terms of total weight of solid substances of the said at least one polysiloxane polymer and the said at least one polyurethane and c) polyolefin powder with ultrahigh molecular weight in amount of approximately 5-35 pts. wt per 100 total parts by weight of the said at least one or more polysiloxanes and the said one or more polyurethanes. The said polyurethane is obtained from at least one aliphatic or cycloaliphatic diisocyanate and at least one hydroxyl ending intermediate compound such as polycarbonate, polyester or polyether or combination thereof, and is heat-curable. The said aqueous dispersion contains approximately 7 wt % or less of an organic solvent in terms of total weight of the said dispersion composition, and the said polymer mixture contains from approximately less than 10 to 0 parts by weight of a substance for increasing adhesiveness per 100 total parts by weight of the said at least one polyurethane and the said at least one polysiloxane; and contains from approximately less than 10 to 0 parts by weight of a halogen-containing polymer per 100 total parts by weight of the said at least one polyurethane and the said at least one polysiloxane. The invention also describes versions of a polymer or rubber substrate and versions of a sealant for vehicles, at least partially coated with the dried composition described above.

EFFECT: low noise level when substrate coated with the said composition moves or is in contact with an article, as well as obtaining a surface with low coefficient of friction which does not increase with time.

17 cl, 14 ex, 10 tbl, 1 dwg

FIELD: chemistry.

SUBSTANCE: polyurethane material contains a first part of crystalline particles, having self-orientation and bonded so as to keep their orientation along a first crystallographic line at least in two directions, a second part of crystalline particles having self-orientation and bonded so as to keep their orientation along a second crystallographic line at least in two directions, wherein the first crystallographic line is different from the second crystallographic line and where the said crystalline particles constitute more than approximately 30% of the total volume of the polyurethane material, and where the polyurethane contains a product of reaction of components comprising: (a) approximately 1 equivalent of 4,4'-methylene-bis(cyclohexylisocyanate); (b) approximately 0.3 of a trimethylolpropane equivalent; and (c) approximately 0.7 of a butanediol or pentanediol equivalent, and where the polyurethane material undergoes thermal treatment at temperature ranging from approximately 35°C to approximately 150°C or holding.

EFFECT: production of polyurethane material, products of which are made through casting or reaction injection moulding and have good optical properties, high resistance to impact loads, high impact resistance, high K-ratio, good ballistic stability, good resistance to solvents and good weather resistance.

26 cl, 110 ex, 33 tbl, 26 dwg

FIELD: chemistry.

SUBSTANCE: disclosed is an aqueous polyurethane dispersion which does not contain N-methylpyrrolidone and solvents and contains a product of reaction of a mixture of 1-isocyanate-3,3,5-trimethyl-5-isocyanatemethylcyclohexane and 4,4'-diisocyanatedicyclohexylmethane, one or more polyols with average molecular weight of 500-3000, one or more compounds with at least one OH- or NH- functional group, which contain a carboxyl and/or carboxylate group, where at least 50 mol % acid incorporated in the overall resin consists of dimethylol propionic acid, one or more polyols and/or polyamines with average molecular weight less than 500 and, if necessary, one or more monoalcohols and/or monoamines, as well as preparation method thereof and use thereof as an agent for coatings having good resistance characteristics.

EFFECT: obtaining a polyurethane dispersion which does not contain N-methylpyrrolidone and solvents, and contains a hydrophilization agent in form of dimethylol propionic acid, which can be stored for over 8 weeks and is suitable for making transparent shining coatings with high resistance to dyes.

8 cl, 2 tbl, 8 ex

FIELD: chemistry.

SUBSTANCE: invention relates to aqueous coating compositions with low content of volatile organic compounds. The aqueous coating composition contains water, oxidative-curable resin, at least 1.5% of the weight of the composition of a non-structured alkali-soluble acrylate, having weight-average molecular weight Mw of 200000 g/mol or lower, and acid number of at least 15 mg KOH/g; and an emulsified second acrylate having Mw of at least 300000 g/mol. Content of the alkali-soluble acrylate in the composition is equal to at least 3 wt %. The weight ratio of the alkali-soluble acrylate to the second emulsified acrylate ranges from 1:0.5 to 1:5, and the weight ratio of the alkali-soluble acrylate to the oxidative-curable resin ranges from 1:0.5 to 1:10. The oxidative curable resin is an alkyd resin, alkyd-urethane resin. The second acrylate is cross-linkable, for example azomethine cross-linkable links.

EFFECT: aqueous coating composition has good physical and mechanical properties.

9 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to polyurethanes and articles made from said polyurethanes, as well as to laminated material and coating composition containing such polyurethanes. The polyurethane is a product of a reaction between components which contains less than approximately 10 wt % polyesterpolyol and/or polyetherpolyol, where the components are selected from: (a) approximately 1 equivalent of at least one polyisocyanate; (b) approximately 0.05-0.9 equivalent of at least one branched polyol which contains 3-18 carbon atoms and at least 3 hydroxyl groups; and (c) approximately 0.1-0.95 equivalent of at least one diol which contains 2-18 carbon atoms, where during mixing, the reaction components are held at reaction temperature of at least approximately 100°C for at least approximately 10 minutes.

EFFECT: production of polyurethanes, articles of which are made through casting or reaction injection moulding and have good optical properties, high resistance to impact loads, high impact resistance, high K-ratio, good ballistic stability, good resistance to solvents and good weather resistance.

37 cl, 113 ex, 82 tbl, 26 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a moisture-curable composition for adhesive compounds, sealing compounds, coatings or linings, application thereof as an adhesive, sealing compound or coating, a cured composition obtained by reacting water with such a composition, methods of gluing bases and sealing using said composition, as well as adhesive and sealed articles made using said methods, respectively. The moisture-curable composition contains (i) at least one isocyanate-containing polyurethane polymer P, which is obtained from at least one polyisocyanate and at least one polyol, and (ii) at least one aldimine-containing compound of formula (I): .

EFFECT: preparation of compounds which are stable during storage, can be quickly moisture-cured without bubbles, do not cause smells during curing and are suitable for use as precursors of synthetic materials.

25 cl, 34 ex, 10 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to compositions based on silane-functional polymers, which are suitable for adhesive binding, sealing and coating porous substrates. The composition contains at least one silane-functional polymer, at least one organosilane and at least one organotitanate. The silane-functional polymer is a silane-functional polyurethane polymer or can be obtained through hydrosilylation of polymers, having terminal double bonds. The organosilane contains at least one sulphur atom. The organotitanate has ligands bound to a titanium atom through an oxygen-titanium bond. The ligands are selected from a group consisting of an alkoxy group, a sulphate group, a carboxylate group, a dialkylphosphate group and an acetylacetonate group. Content of the organotitanate in the composition is between 0.1 and 10 wt %. Content of the organosilane in the composition is between 0.1 and 7 wt %. The composition also contains at least one filler, content of which is between 10 and 70 wt %. The composition is used for binding, sealing and coating substrates made from concrete, mortar, brick, tiles, plaster, natural stone such as granite or marble, glass, glass-ceramic, metal or metal alloy, wood, plastic and lacquer.

EFFECT: obtained article, which is bound, sealed or coated using the composition, is a building structure, more specifically a building or civil construction structure; the composition guarantees efficient adhesion to a substrate even after storage in the presence of water.

17 cl, 1 tbl

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