Method of plating on metallic surfaces by mixture, containing at least two silane

FIELD: metallurgy.

SUBSTANCE: invention relates to method of plating on metallic surface by water composition, containing a) no less than one hydrolysing and/or at least partially hydrolysed silane free from fluorine , b) no less than one hydrolysed and/or at least partially hydrolysed silane consisting fluorine, and c) at least one chelate compound of metal and/or d) at least one organic film-forming material, corresponding oligomer, polymer and/or copolymer, herewith relation of organic film-forming material d) to silanes a) and b) in concentrate or in bath is in limits from 0.1:1 up to 10:1, and silanes in composition are soluble in water or become soluble in water in the issue of hydrolysis and/or chemical change, herewith water composition can contain organic solvent and practically full or fully free from compositions of hexavalent chromium.

EFFECT: receiving of ability of plating on metallic surface at high rates from solution practically fully or fully free from compositions of hexavalent chromium.

27 cl, 3 tbl

 

The invention relates to a method of coating a metallic surface water composition containing at least one free from fluorine silane and at least one fluorine silane composition may also contain an organic film-forming and/or other components. In addition, the invention relates to adequate water compositions, and substrates coated with the relevant invention is a coating method.

Most often used to date the methods of surface treatment or pre-treatment of surfaces before applying the lacquer coatings on metals, particularly metal strips, based on the use of compounds of hexavalent chromium, together with various additives. On the basis of Toxicological and environmental hazards that may involve such methods, as well as taking into account anticipated legal restrictions regarding the application using chromates ways, for the past many years there has been a search for alternatives to these methods in all fields of surface treatment of metals.

In principle, the use of silanes in aqueous compositions for obtaining corrosion coatings with a high content of silanes is known. These coatings have proven themselves good, h is the coating methods using an aqueous composition, mainly containing silane, sometimes difficult to use. Formed in this coating is not always exhibits optimal properties. In addition, there may be problems associated with a reasonably accurate determination of the quality of a very thin transparent Milanovich coatings on a metal substrate and identifying defects in them with the naked eye or with optical AIDS. The resulting coatings with a high content of siloxanes often, but not always, provide good protection against corrosion and provide good adhesion to varnish, but in some cases, despite their suitability for certain applications, these properties are not good enough.

In addition, in the preparation containing silanes water structures were proved using small or, respectively, of significant quantities of additives at least one component selected from the group of monomers, oligomers and/or polymers. In such compositions, the nature and amount of a silanol additive is sometimes crucial to achieve this goal. However, usually the amount of added silane are relatively small, they often do not exceed 5 wt.% and so it acts as a “binding agent”, and in the foreground is his participation in the adhesion between the metal substrate and varnish or soo the relevant case, between the pigment and the organic constituent parts of the lacquer, but may occur, and slight wetting action, the role of which is small. Often silane additives introduced into thermally curable resin systems.

Additionally, also known mixture of resins in which the resin is mixed with inorganic acids, in order in this way achieved the effect of etching and the associated improvement of the contact layer resin directly with the metal surface. However, the disadvantage of such compositions is that the result of etching at the time of contact of the processing liquid (dispersion) with the substrate is pollution. This leads to accumulation in the manufacturing of liquid metals and the associated permanent changes in the chemical composition of the processing liquid that has a significant negative effect on corrosion resistance properties. These metals are leached from the metal surface of the processed substrate in the etching.

In the application of international patent No. 00/46310 presents a method of coating on a metal surface with a liquid composition that contains hydrolysed aminosilane and hydrolyzed silane with different functional silyl groups, but in its composition containing no fluorine silane.

To allow the e to the Federal Republic of Germany patent No. A1 10149148 describes aqueous compositions for coating organic film-forming inorganic fine particles, and on the basis of means to reduce friction and/or organic corrosion inhibitor, which, despite the absence of chromium compounds show excellent results on corrosion protection, adhesion and suitability for processing, including steel sheets, Galvalume®, but their organic film at a thickness of about 1 μm is not well protects against corrosion on metal sheets with a hot-dip galvanizing, electrolytic galvanised or coated Galfan®, i.e. on metal surfaces, which are poorly protected against corrosion. In this regard, this application highlights presented in this publication structures, their components, as well as on the properties of the original products and coatings.

Special attention is paid to the content of the patent application Germany No. 10308237 from 25.02.2003 related to similar content, compositions and related methods of coating on a metal surface, in terms of the original substances and their properties, preparation of the compositions and, accordingly, the hydrolytic processing of silane in such compositions as concentrates and baths, as well as to their properties, provided to effect the formation of coatings, for example, during drying, the formation of films and curing, the compositions and properties of the resulting coatings, as well as the options for real the implementing method.

Application for international patent No. 01/90267 A2 relates to compositions which contain fluorocarbon silane particular composition, surfactant, polymerizable an organosilane or polymerizable silicate, as well as the catalyst. In this publication there is no data on the addition of organic polymer/copolymer.

In the application of international patent No. 02/31062 A2 describes emulsions, which contain fluorocarbon silane, a surfactant and a silane selected from aminosilane, epoxysilane and mercaptoethanol, and in appropriate cases “subsidiary means for the film formation on the basis of silicon dioxide, titanium dioxide, zirconium dioxide, organoalkoxysilanes and/or polysilazane. This publication is also no data on the addition of organic polymer/copolymer.

In U.S. patent No. 2001/0031811 A1 presents the compositions for coating consisting mainly of (a) in the amount of 20-70% two different Milanovich monomers, (b) 1-60% of tetraalkoxysilane, (C) water-soluble organic polymer, (d) nonionic surfactant, (d) a lower aliphatic alcohol, (e) a water-soluble acid as catalyst, and (f) water. In the appropriate case, may also be added Persian. These compositions are intended for obtaining coatings of the low reflective ability and accordingly, such photochromic articles, such as lenses.

The objective of the invention is to overcome the disadvantages of the prior art and, in particular, to propose a method of coating on a metal surface, which can be used for coating on parts and coatings on metal sheets at high speed coating, which can be used in almost complete or complete absence of compounds hexavalent chromium and which can be easily implemented on an industrial scale.

It was unexpectedly found that when added to water composition relatively small amounts of fluorine-free silane can be obtained coating, which is more hydrophobic and more resistant to corrosion than a similar coating without the addition of fluorine silane, and this is a noticeable deterioration in the solubility of the composition in water and the stability of the composition. At the same time could normally be expected that more hydrophobic composition will lead to deterioration in solubility in water.

The task is solved by the method of coating metal surfaces, particularly aluminum, iron, copper, magnesium, Nickel, titanium, tin, zinc or alloys containing aluminum, iron, copper, magnesium, Nickel, titanium is the term and/or zinc, with the help of water composition, which may also contain an organic solvent and other components, the composition is almost completely or completely free from compounds of hexavalent chromium, for pre-treatment before applying another coating or processing in which the product is coated, in particular a strip or cut the strip after coating is subjected to molding, characterized in that the composition along with the water contains

a) at least one hydrolisis and/or at least partially hydrolyzed free from fluorine silane and

b) not less than one hydrolisis and/or at least partially hydrolyzed containing fluorine silane, and

C) at least one chelate compound of the metal and/or

g) at least one oligomer/polymer/copolymer,

moreover, the ratio of monomer/oligomer/polymer/copolymer components d) to the silanes (a) and (b) in the concentrate and/or in the bath is in the range from 0.1:1 to 10:1,

the silanes in the composition are soluble in water or, in particular, are soluble in water due (next below) hydrolysis and/or chemical reactions before applying to the metal surface,

when in contact with water the composition is clean, etched, cleaned and/or pretreated metal surface is ness, and on the metal surface of the formed film, which is then dried and, where appropriate, additionally utverjdayut,

when this layer is dried and, where appropriate, utverzhdenii film has a thickness in the range from 0.001 to 10 μm, and the thickness was determined by weighing a certain area utverzhdenii film after its offices or by measuring the content of silicon in the coating, for example using x-ray fluorescence analysis with the appropriate conversion.

The problem is solved through the aqueous compositions in accordance with A.25 claims.

Additional claims describe further the way. Applications can be derived from p and item 27 of the claims.

The silane characterized in this application is the dominant part of products that are typically sold commercially. Contained in the aqueous composition (concentrate or, respectively, in the bath) silanes are monomers, oligomers, polymers, copolymers and/or products of interactions with other components in the reactions of hydrolysis, condensation reactions and/or other reactions. Interactions occur primarily in the solution during drying or curing, if it is carried out. The concept of “forces which n” is used to denote silanes, silanols, siloxanes, polysiloxanes and other products of their transformations, and therefore also for their derivatives, which are likely to be mixtures “silanes”. Due to the fact that often occur very complex chemical reactions, and also due to the complexity of the analyses and other relevant works silanes and other products of the reaction are not specified.

In the framework of the present invention, the silanes are soluble in water, if at room temperature containing silane composition displays a summary of the solubility in water of not less than 0.05 g/l, in the preferred case, not less than 0.1 g/l, particularly preferred if at least 0.2 g/l, or not less than 0.3 g/L. However, this does not mean that every single of these silanes should show the following minimum solubility, but only that these minimum values are obtained on the average.

In the preferred case in the aqueous composition contains at least one silane selected from free from fluorine silane, i.e. in each case is at least one alloccasion, one alkoxysilane, one silane with at least one amino group, such as aminoalkylsilane, one silane with at least one group-based succinic acid and/or based on the anhydride of succinic acid, one bis-Silesian, one silane with at least one EPO is Sydney group, for example piridoksina one (meth)acrylation, one multicollision, one freedonian, one vinylsilane and/or at least one silanol combined with caffeine and/or at least one siloxane or, respectively, polysiloxan, whose chemical composition corresponds to the above silanes. The composition contains at least one silane and/or (in each case) at least one Monomeric, dimeric, oligomeric and/or polymeric silanol combined with caffeine and/or in each case at least one Monomeric, dimeric, oligomeric and/or polymeric siloxane, and in this case the notion of oligomers should also include trimers.

In particular, in this case part of at least one free from fluorine silane selected from a group based

glycidoxypropyltrimethoxysilane,

methacryloxypropyltrimethoxysilane,

(tralkoxydim)alkylsalicylate,

aminoethylaminomethyl,

(epoxycyclohexyl)allyltriethoxysilane,

bis-(trialkilsilil)amine,

bis-(tralkoxydim)ethane,

(epoxyethyl)dialkoxybenzene,

aminoalkylsilane,

ureidopenicillin,

N-(trialkilsilil)alkylenediamine,

N-(aminoalkyl)aminoalkylsilane,

N-(trialkilsilil)dialkylanilines,

poly(aminoalkyl)Ala is dialkoxybenzene,

Tris(tralkoxydim)alkylsulfonate,

ureidopenicillin and

acetoxysilane.

In a particularly preferred case is included in at least one silane selected from a group based

3 glycidoxypropyltrimethoxysilane,

3 glycidoxypropyltrimethoxysilane,

3 methacryloxypropyltrimethoxysilane,

3 methacryloxypropyltrimethoxysilane,

3-(triethoxysilyl)prophylactically,

aminoethylaminomethyl,

aminoethylaminomethyl,

beta-(3,4-epoxycyclohexyl)ethyltriethoxysilane,

beta-(3,4-epoxycyclohexyl)ethyltrimethoxysilane,

beta-(3,4-epoxycyclohexyl)methyltriethoxysilane,

beta-(3,4-epoxycyclohexyl)methyltrimethoxysilane,

gamma-(3,4-epoxycyclohexyl)propyltriethoxysilane,

gamma-(3,4-epoxycyclohexyl)propyltrimethoxysilane,

bis(triethoxysilylpropyl)amine,

bis(triethoxysilylpropyl)amine,

(3,4-epoxybutene)triethoxysilane,

(3,4-epoxybutene)trimethoxysilane,

gamma aminopropyltriethoxysilane,

gamma-aminopropyltrimethoxysilane,

gamma-ureidopropionic,

N-[3-(trimethoxysilyl)propyl]Ethylenediamine,

N-beta-(aminoethyl)-gamma aminopropyltriethoxysilane,

N-beta-(aminoethyl)-gamma-aminopropyltrimethoxysilane,

N-(gamma-triethoxy eliprodil)Diethylenetriamine,

N-(gamma-triethoxysilylpropyl)Diethylenetriamine,

N-(gamma-triethoxysilylpropyl)Diethylenetriamine,

N-(gamma-triethoxysilylpropyl)Diethylenetriamine,

poly(aminoalkyl)ethyldichlorosilane,

poly(aminoalkyl)methyldichlorosilane,

Tris[3-(triethoxysilyl)propyl]isocyanurate,

Tris[3-(trimethoxysilyl)propyl]isocyanurate and

vinyltriethoxysilane.

In the preferred case in the aqueous composition contains at least one silane selected from fluorine silane, i.e. in each case it is at least one alloccasion, one alkoxysilane, one silane with at least one amino group, such as aminoalkylsilane, one silane with at least one group-based succinic acid and/or based on the anhydride of succinic acid, one bis-Silesian, one silane with at least one epoxy group, such as piridoksina one (meth)acrylation, one multicollision, one freedonian, one vinylsilane, and/or at least one silanol combined with caffeine and/or at least one siloxane or, respectively, polysiloxan, the chemical composition of which corresponds to the above silanes and which in each case contains at least one group with one or with at least one fluorine atom.

In particular, the aqueous composition contains at least the one coralcalcium, at least one mono-, di - or trifunctionally Persian at least one mono-, bis - or Tris-Persian at least one Persian on the basis of ethoxysilane and/or on the basis of ethoxysilane and/or at least one Persian with at least one functional group, for example, amino group, in particular in the form of such a product cocondensate, as, for example, perlchildexithandler, terminalscommercialised, formeasurement, ferroelectricity, triphenylarsine, dialkoxybenzene, trialkylborane and/or tridecafluorohexyl.

In a particularly preferred case, the composition contains at least one silane containing at least two amino groups and at least one ethyl and/or at least one methyl group.

In the preferred case, the content of all silanes (a) and (b), including products that could be formed by the reaction with other components, is in the amount of from 0.01 to 100 g/l in the concentrate and, respectively, from 0.002 to 12 g/l in the bath. To concentrate this content in a particularly preferred case is in the range from 0.05 to 80 g/l, in the most preferred case from 0.1 to 60 g/l, in particular, it is approximately 0,5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 22,5, 25, 27,5, 30, 35, 40, 45, 50 or 55 g/l In the bath it the content is particularly preferably the m case lies in the range of 0.005 to 5 g/l, in the most preferred case from 0.01 to 3 g/l, in particular, it is approximately 0,05, 0,1, 0,2, 0,3, 0,4, 0,5, 0,6, 0,7, 0,8, 0,9, 1,0, 1,1, 1,2, 1,3, 1,4, 1,5, 1,6, 1,7, 1,8, 2,0, 2,25, 2,5 or 2,75 g/l Dilution of a concentrate to which water is most commonly used and only in some cases a mixture of water with at least one organic solvent, can in particular be carried out by a factor of from 1.5 to 30, often the dilution factor ranging from 2 to 20, in particular from 3 to 12.

In the preferred case, the ratio of the amounts of a) to b) in each case is in the range from 1:0.01 to 1:4, special preference is given to the ratio of quantities from 1:0.03 to 1:3, most preferred relative amounts of from 1:0.05 to 1:2.5 and in particular, it is in each case of not less 1:0,08, 1:0,12, 1:0,16, 1:0,2, 1:0,25, 1:0,3, 1:0,35, 1:0,4, 1:0,45 or 1:0.5, in particular, in each case 1:2,5, 1:2,2, 1:2, 1:1,8, 1:1,6, 1:1,4, 1:1,2, 1:1,1, 1:1, 1:0,9, 1:0,8, 1:0,7 or 1:0.6mm. However, the corresponding optimum of this quantitative ratio can vary depending on the silanes (a) and (b) and how they are hydrolyzed.

In the preferred case, the aqueous composition is chosen so that more than 60 wt.%, in particular, more than 80 wt.%, silanes have good solubility in water and that derived from the composition in the form of a concentrate or in the form of baths showed good stability over time it is basically the CSOs use. This time of practical use can, depending on requirements can vary from two hours to six months. With good stability can be saying that when the composition is formed as small as possible sludge or when it is not formed completely and when the composition undergoes minimal chemical and/or physical transformation. Consisting mainly of silane and solvent composition in the preferred case, transparent. In the preferred case is chosen such silanes, and such reactions and production operations, so that the resultant of the silane compound to the maximum extent, in particular mainly or almost entirely, forming patterns that can be considered as conductive patterns.

Special advantages can be obtained when the aqueous composition is added in at least two different free from fluorine silane, in appropriate cases, it may even be three or four different free from fluorine silane. Of the many possible combinations of particular preference is given to using a combination of at least one of the functionalized dialkoxybenzene with at least one bis-tralkoxydim at least one aminosilane with at least one bis-tralkoxydim, at the very the least one bis-dialkoxybenzene with at least one vinylsilane, at least one bis-dialkoxybenzene with at least one freedomland at least one vinylsilane with at least one bis-dialkoxybenzene, the combination of at least one of aminoalkylsilane with at least one bis-dialkoxybenzene at least one bis-tilkoblingsmateriale with at least one bis-dialkoxybenzene at least one free from fluorine silane containing cyanate and/or epoxy groups, differing from it free from fluorine-silane, one of these combinations can also optionally add at least one freedonian, at least one multicellular at least one bis-tilkoblingsmateriale and/or at least one tralkoxydim.

In a particularly preferred case can also be added to the aqueous composition at least two different fluorine silane, in appropriate cases, it may even be three or four different fluorine silane.

Particular preference is given to combining in each case at least one of organosilane functionalized with organosilanes and porcelana, in particular in each case it is the combination of at least one aminosilane, one multisil the silane and one porcelana.

Certain advantages can be obtained when the individual silanes, if they are not obtained sufficiently, first hydrolyzing each separately, as appropriate, stored separately and then added to the composition. In appropriate cases during hydrolysis occurring chemical reactions and, accordingly, the condensation reaction. However, the hydrolysis and/or chemical reaction and, consequently, the condensation reaction may in appropriate cases to proceed further during storage, and in some cases, and after adding to the composition in the form of a concentrate or a bath.

Water composition, which in this application is called the solution should not be a solution in the true sense of the term, since it is often only through additional research, you can determine whether in this case the question about the true solutions. In particular, the aqueous composition may be a suspension and/or emulsion, first of all, when it added particles, in particular inorganic particles.

The aqueous composition contains as a solvent at least water, and the water content in the mixture of solvents in the case of the concentrate exceeds 50 wt.%, in the composition of the bath her more than 75 wt.%. In the preferred case, the water content in the mixture of solvents in the case of a concentrate which is at least 60 wt.%, in a particularly preferred case, at least 70 wt.%, in the most preferred case, at least 80 wt.%, in particular it contains not less than 90 wt.%. In the preferred case, the water content in the mixture of solvents in the composition of the bath is equal to at least 80 wt.%, in a particularly preferred case, at least 85 wt.%, in the most preferred case, at least 90 wt.%, in particular its content of at least 95 wt.%. The content of other different from water, solvents, that is, in particular, of such organic solvents, such as ethanol, methanol, propanol and/or isopropanol, may be due, on the one hand, adding them to the concentrate or to the tub and/or they may be formed in the concentrate or in the bath as a result of chemical reactions. However, for environmental preferably, when the organic solvent is maintained at a low minimum level. At the same time for processing it is sometimes desirable to have some or a small content of organic solvents, besides their presence, due to the chemical reactions, sometimes inevitably, then, if organic solvents are not artificially separated.

The aqueous composition contains not more than 0.2 g/l of chromium, in the preferred case of chromium not more than 0.1 g/l, most preferably, when chromium not more than 0.02 g/l, and the chromium content may be due, in particular, pollution or, respectively, by etching chromium alloys or coatings of chromium. In the preferred case, the composition does not contain other heavy metals except iron, manganese and zinc in a total amount of more than 0.8 g/L.

In the first preferred implementation of the present invention an aqueous composition contains silanes (a) and (b), water and, where appropriate, at least one organic solvent, for example methanol, ethanol, isopropanol and/or propanol, at least one alkaline agent, for example ammonia, at least one acidic agent, such as acetic acid and/or glacial acetic acid, at least one surfactant to reduce surface tension and for a more uniform and reliable coating on a metal surface, for example, at least one nonionic at least one anionic, at least one cationic and/or at least one amphoteric surface-active agent, and/or at least one additive, for example, at least one preservative agent and/or at least one biocide.

In the preferred case, the compositions of the baths provided is mainly silanes water structures, have a water content ranging from 80 to 99.9 wt.%, in the preferred case in the range from 80 to 99.8 wt.%, in a particularly preferred case in the range from 94 to 99.7 wt.%, especially in the range from 96 to 99.6 wt.%, in particular, for example, 91, 91,5, 92, 92,5, 93, 93,5, 94, 94,5, 95, 95,5, 96, 96,5, 97, 97,5, 97,9, 98,2, 98,5, 98,8, 99,1 or 99.4 wt.%.

Total content in the bath the other component, in addition to silane and solvent, is usually not more than 5 g/l, in the preferred case, not more than 3 g/l, particularly preferred not more than 1.5 g/l, but concentrate their content can be correspondingly higher.

In the second and third most preferred implementation of this invention, compositions of the first preferred embodiments can be added to at least one component selected from the following eleven components:

C) a chelate compound of the metal,

g) a monomer, oligomer, polymer and/or copolymer,

d) selection of at least one of the following components:

d1at least one inorganic compound in the form of particles with an average particle diameter, measured by a scanning electron microscope, in the range 0.005 to 0.3 microns in diameter,

d2at least one means for facilitating sliding

d3at least one organically the corrosion inhibitor

d4at least one corrosion pigment,

d5at least one means for neutralizing and/or steric stabilization artificial resins,

d6) at least one organic solvent,

d7) at least one siloxane,

d8at least one long-chain alcohol and

d9at least one surface-active substance.

In a particularly preferred case, the number of chelate (chelates), in each case, including formed from the products of the reactions range from 0.01 to 15 wt.% based on the solid content in the composition of the bath, particular preference is given in each case independently of each other numbers from 0.03 to 11 wt.%, in particular, for example, in each case independently of other quantities, equal to 0,05, 0,1, 0,5, 1, 1,5, 2, 2,5, 3, 3,5, 4, 4,5, 5, 5,5, 6, 6,5, 7, 7,5, 8, 8,5, 9, 9,5, 10 or 10.5 wt.%.

In the preferred case, choose at least one silane, which is compatible with water; this means that at least one silane or where appropriate the products of its hydrolysis and condensation without complications are mixed with the components of the aqueous composition and retain their properties for many weeks, as well as the fact that it allows you to create a flawless film in the wet and in suchomasty, which, in particular, has no breaks, evenly distributed and has no craters. In particular, choose at least one silane, which provides good protection against corrosion, in particular, in combination with the selected at least one chelate compound.

In the preferred case, choose at least one chelate compound, which for many days and weeks is stable in aqueous dispersions in the presence of the other component of the aqueous composition and which provides good protection against corrosion. In addition, in the preferred case, at least one silane and at least one chelate compound can form a chemical bond with one hand, with the treated metal surface, which need them to communicate, but on the other hand, can also form a chemical bond with a varnish, which will be applied in addition. In particular, at least one chelate compound of the metal is a compound of aluminum, boron, calcium, iron, hafnium, lanthanum, magnesium, manganese, silicon, titanium, yttrium, zinc, zirconium and/or at least one lanthanide, such as cerium or containing cerium mixture of lanthanides, in particular, special preference is given to selecting from the group of aluminum, hafnium, manganese, silicon, titanium, yttrium, and C is Rani.

In the preferred case, the water content in the concentrates aqueous compositions mainly containing silanes and chelate (chelates), as well as the individual components constituting the initial products for containing polymers of the compositions is in the range from 20 to 95 wt.%, in particular from 30 to 90 wt.%. In the preferred case, the content of silanes, including formed of these products in the concentrate is in the range from 0.1 to 60 wt.%, in a particularly preferred case in the range from 0.2 to 45 wt.%, in the most preferred case in the range from 0.3 to 35 wt.%, especially in the range from 0.5 to 32 wt.%, in particular, for example, it 0,8, 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22,5, 25, 27,5 or 30 wt.%, and the content of at least one chelate compounds, including, in appropriate cases formed from the products of the reaction lies in the range from 0.1 to 50 wt.%, in a particularly preferred case from 0.2 to 40 wt.%, in the most preferred case in the range from 0.3 to 30 wt.%, especially in the range from 0.5 to 25 wt.%, in particular, for example, it 0,75, 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 or 22.5 wt.%.

In the preferred case, the water content in the compositions of the baths, mainly containing silane and the chelate in aqueous compositions is in the range from 80 to 99.9 wt.%, and here may also include some amount of at least one organic dissolve the El. In the preferred case, the content of water and/or at least one organic solvent is in the range from 90 to 99.8 wt.%, in a particularly preferred case in the range from 94 to 99.7 wt.%, especially in the range from 96 to 99.6 wt.%, in particular, for example, it 95, 95,5, 96, 96,5, 97, 97,5, 97,9, 98,2, 98,5, 98,8, 99,1 or 99.4 wt.%.

In the preferred case, the content of silanes, including products that could one of them be formed, and other components in the compositions of the baths is in the range from 0.01 to 10 wt.%, in a particularly preferred case in the range from 0.05 to 7 wt.%, in the most preferred case in the range from 0.1 to 5 wt.%, especially in the range from 0.2 to 4 wt.%, in particular, for example, it 0,4, 0,6, 0,8, 1,0, 1,1, 1,2, 1,3, 1,4, 1,5, 1,6, 1,7, 1,8, 1,9, 2,0, 2,1, 2,2, 2,4, 2,6, 2,8, 3,0, 3,2, 3,4, 3,6 or 3.8 wt.%, and the content of at least one chelate compounds, including, in appropriate cases formed from the products of reaction is in the range from 0.01 to 10 wt.%, in a particularly preferred case in the range from 0.05 to 7 wt.%, in the most preferred case in the range from 0.1 to 5 wt.%, especially in the range from 0.2 to 4 wt.%, in particular, for example, it 0,3, 0,4, 0,5, 0,6, 0,7, 0,8, 0,9, 1,0, 1,1, 1,2, 1,3, 1,4, 1,6, 1,8, 2,0, 2,2, 2,4, 2,6, 2,8, 3,0, 3,2, 3,4, 3,6 or 3.8 wt.%.

In the preferred case, the content of silane and at least one chelate compounds, including in each case the image of the mark based on the products of transformations, in particular compounds of titanium, hafnium and/or zirconium, constitute at least 20 wt.%, in particular at least 30 wt.%, in a particularly preferred case, at least 40 wt.%, in the most preferred case, at least 50 wt.%, first of all, in each case not less than 60, 70, 80, 90, 94, 95, 96, 97, 98 or 99 wt.% from the content of solids in the composition. In a particularly preferred if the composition consists mainly of water, in each case at least one silane and/or products of its reactions, at least one chelate compounds, including, in appropriate cases formed from the products of the reactions, as well as the composition may contain a substance selected from the group of alcohols, such acids as carboxylic and fatty acids, for example acetic acid, and/or mineral acids and other compounds that affect the pH value, for example ammonia, and, accordingly, additives and impurities. The total content of other compounds, including supplements along with the silane and the chelate compound is usually up to 20 wt.% from the content of solid substances of a silane and a chelate compound, in the preferred case that the content is up to 15 wt.%, in a particularly preferred case, up to 10 wt.%, in the most preferred case, up to 5 wt.%, first su is th to 1 or to 2 wt.%.

Although the attitude of at least one silane, including formed from the products of transformations, to at least one chelate compound, including, in appropriate cases formed from the products of transformations, in the preferred case may lie in the range from 0.8:1 to 1.2:1, it was unexpectedly found that this ratio may also, in particular, to lie in the range of 0.2:1 to 0.5:1 or in the range from 2:1 to 5:1, because in certain situations the optimum may be within these limits.

The pH value of the compositions of the baths may, in particular, to lie in the range from 3 to 9.5, in the preferred case in the range from 3.5 to 9, in particular in the range from 4 to 8.8. To set the value of pH can be, for example, to add a weak acid or a diluted strong acid or, respectively, of the mixture of acids. In particular, can be used at least one acid, for example, from carboxylic and fatty acids, for example acetic acid, and/or mineral acids, and other compounds that affect the pH value, for example ammonia. By adding acid composition of the bath may be in individual cases brought to pH values of about of about 3.5, if a chemical system maintains the selected pH value and remains stable. In the preferred case for the stabilization of the silane may be the also added to this solvent, as alcohol.

Obtained through the use of such compositions baths coatings typically have a thickness in the range from 0.01 to 0.6 μm, usually between 0.015 to 0.25 microns.

In addition to the silanes corresponding to the invention the composition may also contain organic monomers, oligomers, polymers and/or copolymers. In the preferred case, the notion of copolymers essentially this application also includes copolymers and grafted copolymers.

In the preferred case, the acid number of the resin is from 3 to 100, in a particularly preferred case from 3 to 60, or from 4 to 50. In particular, to aqueous compositions add products copolymerized with an acid number in the range from 3 to 50. Add the components of the organic film-forming agent can be partially neutralized. Organic foaming agent in the preferred case, it may partially contain at least one product is copolymerized with an acid number in the range from 3 to 80, in particular, its share may be at least 50 wt.% from added artificial resins. In the field of high acid number is usually not necessary to cationic, anionic and/or steric stabilization agent. However, at low values of acid number often there is a need for such stabilization. Then prepact the tion is given to the use of already (partially) stable synthetic resins or accordingly, mixtures thereof.

In the preferred case, the aqueous composition contains at least one such synthetic resin as the organic polymer, copolymer and/or their mixture, in particular a synthetic resin on acrylate, ethylene, polyester, polyurethane, silicone polyester, epoxide, phenol, styrene, melamineformaldehyde based on urea and/or vinyl base. Organic foaming agent in the preferred case, it may be a mixture of synthetic resins of at least one polymer and/or at least one product of the copolymerization, which are in each case independently of the others contains a synthetic resin on acrylate, epoxide, ethylene, urea-based, phenolic, polyester, polyurethane, styrene-based, styrene-butadiene and/or vinyl base. This may also go on the cation, anion and/or sterically stabilized synthetic resin or polymer and/or dispersion, or even about their solution. Essentially the present invention, the term acrylate includes esters of acrylic acid, polyacrylic acid, esters of methacrylic acid and methacrylate.

In the preferred case, the organic film former may contain the at least one component based on the

acrylonitrilebutadiene product copolymerization,

acrylonitrilebutadienestyrene product copolymerization,

esters of acrylic acid,

esters of acrylic and methacrylic acid, including the free acid groups,

and/or Acrylonitrile,

ethylenically mixture,

ethylenamine product copolymerization,

ativanklonopin product copolymerization,

utilisationtechnologies product copolymerization,

ethylenebisdithiocarbamic product copolymerization,

ethylenechlorotrifluoroethylene product copolymerization,

ethylenebisstearamide product copolymerization,

polyester resins with free carboxyl groups in combination with melamine-formaldehyde resins,

a mixture of synthetic resins and/or copolymerization product on the basis of acrylate and styrene,

a mixture of synthetic resins and/or copolymerization product based on styrene and butadiene,

a mixture of synthetic resins and/or product copolymerization of acrylate and epoxide;

on the basis of acrylic-modified polyester with free carboxyl groups together with melamineformaldehyde and ethylenically the product of copolymerization,

polycarbonatediol,

politicalarena,

styrene,

stilolinea the ATA,

vinyl acetate,

the vinyl ether complex and/or

vinyl is simple ether.

However, the organic foaming agent may also, in the preferred case to contain as a synthetic resin, an organic polymer, copolymer and/or mixture thereof based on polyethylenimine, polyvinyl alcohol, polyvinylformal, polyvinylpyrrolidone and/or poliasparaginovaya acid, in particular copolymers with a phosphorus-containing vinyl compound. In the preferred case, the aqueous composition is added also conductive polymer.

In accordance with a second particularly preferred variant of the invention the ratio of the masses of the compounds of components d) monomers/oligomers/polymers/copolymers to the mass of silane in the concentrate and/or in the bath in the preferred case lies in the range from 0.1:1 to 10:1, in a particularly preferred case, in the range of 0.2:1 to 5:1, most preferred in the range from 0.3:1 to 3:1, in particular, it is value to 2:1 to 1.5:1. It is possible that in this embodiment of the invention, the silanes are not only “binding agents”, usually this role they have subordinate value or it does not.

In accordance with a third particularly preferred variant of the invention the ratio of the masses of the compounds of components d) monomers/oligomers/polymers/copolymers to the mass of silane in the concentrate and/or in the bath in the preferred case is in the range from 3:1 to 200:1, in a particularly preferred case in the range from 8:1 to 120:1, in the preferred case in the range from 12:1 to 100:1. In this embodiment of the invention, the silanes in many cases partially, mainly or solely play the role of “binding agents”. In particular, in this embodiment, the implementation often can be obtained certain advantages by adding, as subsidiary means for the formation of films of long chain alcohol d8), which in the formation of the film ensures the convergence of values, or the alignment of the glass transition temperature Tgor, respectively, the minimum temperature of formation of the film (MFT). Because of this we can form coatings which are characterized by a particularly uniform distribution of organic substances that can have a positive effect on the properties of these coatings.

In a particularly preferred embodiment, the implement may be used a mixture of organic film-forming, in which at least part of the film-forming is mostly the same and/or similar glass transition temperature Tg. In a particularly preferred case, at least part of the organic film-forming has a glass transition temperature Tgin the range from 10 to 70°C, in the most predpochtitelnye in the range from 15 to 65°C, in particular in the range from 20 to 60°C. Then the organic film-forming includes in the preferred case, at least a portion of at least one polymer and/or at least one product of copolymerization with a minimum film forming temperature MFT in the range from -10 to +99°C, in a particularly preferred case in the range from 0 to 90°C., in particular from 5 or 10°C. particularly preferably, when at least two or even all organic had minimum film-forming temperature film forming within that temperature range, unless, of course, the minimum film forming temperature can be defined.

It is particularly preferable when all organic film-forming upon drying into the film. Particularly preferably, when the aqueous composition is added artificial resin that is at least 80 wt.% exhibit the properties of thermoplastics, in particular at least 90 wt.%.

The choice of suitable tools for the education of the film is very complex, and often require the presence of a mixture of at least two auxiliary means for the formation of the film. In particular, as tools for education film preference is given to the so-called donnieboy the alcohols, in particular such alcohols with carbon atoms from four to twenty, as butanediol, butylglycol, butyldiglycol, so simple esters of ethylene glycol, as monobutyl ether of ethylene glycol, monotropy ether of ethylene glycol, onomatology ether of ethylene glycol, acylglycerols ether, hexyl ether of ethylene glycol, methyl ether of diethylene glycol, ethyl ether of diethylene glycol, butyl ether of diethylene glycol, hexyl ether of diethylene glycol, or so simple esters of polypropylenglycol as onomatology ether of propylene glycol, onomatology broadcast dipropyleneglycol, onomatology broadcast tripropyleneglycol, monobutyl ether of propylene glycol, monobutyl broadcast dipropyleneglycol, monobutyl broadcast tripropyleneglycol, monopropylene ether of propylene glycol, monopropylene broadcast dipropyleneglycol, monopropylene broadcast tripropyleneglycol, phenyl ether of propylene glycol, diisobutyrate trimethylpentanediol, polytetrahydrofuran, the polyol with ties polyether and/or polyol with ties polyesters. In contrast to the formation of films for organic coatings with thermal curing for the formation of a mesh structure usually requires a temperature of at least 120°C.

In accordance with a fourth particularly preferred implementation of the invention by PR is naznacheniya for this events form a hydrophobic surface, thanks hydrophobicity and/or the microstructure of the surface has the ability to cleanse itself. Thus the microstructure of the surface can be obtained by adding organic and/or inorganic particles and the formation of organic particles, and at a corresponding process can be obtained such a microstructure, the formation of which occurs as a result of structuring in the dimension of nanometer and/or micrometer. In the preferred case, the added particles are mostly rough surface and/or complex geometry, and/or they have already formed, and/or stacked to form a roughened or, respectively, more difficult decorated agglomerates and/or aggregates. This can be achieved by adding particles with different degrees of grinding, that is, particles with different average sizes and/or particles with different size distribution. Thus obtained coating in the preferred case, you may have a microstructured surface that at least partially formed so that the microstructure was on the microstructure of the average degree of dispersion. This coverage can be obtained on the basis of the compositions according to particularly preferred first, second, and third versions of the implementation.

In addition, there are still other preferred options, in accordance with which, in particular, has at least one component selected from the group of d1) to d9), and may also contain at least one component b) or (d) where appropriate, along with at least one monomer/oligomer/polymer/copolymer and/or along with at least one inorganic compound in the form of particles.

In the preferred case, as a means of d2facilitate the sliding, use at least one wax selected from the group of paraffins, polyethylene and polypropylene, in particular oxidized wax, and the content of waxes in water composition in the preferred case is in the range from 0.01 to 5 wt.%, in a particularly preferred case in the range from 0.02 to 3.5 wt.%, in the most preferred case in the range from 0.05 to 2 wt.%. In the preferred case, the melting point is used as a means to facilitate sliding of the wax is in the range from 40 to 165°C., in a particularly preferred case in the range from 50 to 160°C., in particular in the range from 120 to 150°C. In a particularly preferred case, to facilitate the sliding of the tool with a melting point in the range from 120 to 165°C. was added a means to facilitate sliding with temperature plavini is in the range of 45 to 95°C or with a glass transition temperature ranging from -20 to +60°C, in particular, in amounts of from 2 to 30 wt.%, in the preferred case from 5 to 20 wt.% of the total content of solids. The latter can also be successfully used as the sole means.

Particular preference is given to using wax in the form of water or, respectively, cation, anion and/or sterically stabilized dispersions, as in this case can easily be supported homogeneous distribution in the aqueous composition. In the preferred case, the content of the at least one means for facilitating the sliding, which can be both a tool that facilitates the processing is in the range from 0.1 to 25 g/l and in a particularly preferred if the content is in the range from 1 to 15 g/l in water composition.

In the preferred case, the aqueous composition contains at least one organic corrosion inhibitor d3), in particular, on the basis of amine (amine), in the preferred case, at least one alkanolamine, in the preferred case of long-chain alkanolamine at least one amine complex TRA (TLC), for example an acid adduct 4-ethylmorpholine and 4-oxo-4-n-toolmaking acid, at least one zinc salt of aminocarboxylate, 5-nitroisophthalic acid or cyanic acid, at least one polymer and moneynow salt of fatty acid, at least one metal salt and sulfonic acids such as dodecylsulfonate at least one amine compound or complex with the transition metal colorproperty acid, 2-mercaptobenzothiazoles acid or, respectively, at least one of its amine salts, at least one conductive polymer and/or at least one thiol, and the content of organic corrosion inhibitors in the water composition in the preferred case may lie in the range from 0.01 to 5 wt.%, in a particularly preferred case in the range from 0.02 to 3 wt.%, in the most preferred case, in the range of 0.05 to 1.5 wt.%.

Preferably, when at least one organic corrosion inhibitor is not volatile at room temperature. In addition, certain advantages can be obtained in the case when it is well soluble in water and/or when it is easily dispersed in water, in particular more than 20 g/L. Along with other particular preference is given to such alkylamidoamines as dimethylaminoethanol, or, respectively, such complexes based on TRA (TLC) and an amine as a complex N-ethylmorpholine with 4-methyl-γ-oxopentanoic acid. The corrosion inhibitor may be added in order to provide a stronger inhibition of corrosion or even more the us is pouring anti-corrosion properties.

In the preferred case, the aqueous composition contains from 0.1 to 80 g/l of at least one corrosion pigment d4). These include, in particular, various silicates on the basis of aluminum silicate, aluminum and alkaline earth metals, alkaline earth metals and silicates. Protects against corrosion pigments in the preferred case have an average particle diameter measured using a scanning electron microscope, in the range from 0.01 to 0.5 μm, in particular in the range from 0.02 to 0.3 microns. The different types of corrosion pigments, in principle, known. However, it seems that adding at least one of these pigments cannot be considered absolutely necessary, but it gives the possibility of obtaining alternative implementation.

Means for neutralizing and/or steric stabilization of the acid groups of the synthetic resins d5), in particular, with an acid number in the range from 5 to 50 can be also presents non-volatile alkanolamine and hydroxides such as hydroxides of sodium and potassium, but in the preferred case, they are volatile alkanolamine, ammonia and compounds on the basis of the research and alkanolamines. Their action is based on the fact that the neutralized resin is mixed with water or, respectively, when kislotno is m, ranging from about 150, they are also soluble in water.

When implementing the invention method can be also added at least one organic solvent d6). As the organic solvent for the organic polymers can be used at least one miscible with water and/or water-soluble alcohol, simple ester of a glycol or, respectively, N is the organic and/or water for the case when the used solvent mixtures, in particular mixtures of at least one long-chain alcohol, such as propylene glycol, complex ester with an alcohol group, a simple ether glycol and/or butanediol with water. However, in the preferred case is most often used only water, not adding to it any organic solvents. When using the organic solvent, the content in the preferred range of from 0.1 to 10 wt.%, in particular from 0.25 to 5 wt.%, in a particularly preferred case from 0.4 to 3 wt.%. When receiving the sheet material, it is preferable to use water only when it is almost full or complete absence of organic solvent, with the possible exception of small amounts of alcohol.

In addition, certain advantages can be obtained by adding at least one socialdemocrata for so you apply a wet film uniformly on the plane and through the thickness, and also to make sure it was tight and had no Razov. In principle, this approach many of the wetting means, in the preferred case is acrylics, silanes, polysiloxane, long-chain alcohols, which reduce the surface tension of the aqueous composition. Particular preference is given to adding at least one polysiloxane d7).

Adding at least one surfactant d9) can improve the wetting ability of the relevant invention composition on the metal surface and to improve the quality of the coating, in particular, may make it more uniform. Thus, in particular, a significant improvement is achieved, primarily, on very rough surfaces. For this fit many types of surfactants, in particular nonionic, cationic, amphoteric and anionic surfactants. Often enough the addition of a small amount ranging from 0.1 to 0.4 g/L.

In addition, corresponding to the compositions of the invention can be used as a wash solution, which is applied after a previous injury, such as a conversion coating. As a conversion coating on a metal surface and can be applied first, for example, the coating on the basis of at least one organic and/or inorganic acid, as appropriate, with other additives, based on the phosphate composition, for example on the basis of iron, calcium, magnesium, manganese and/or zinc, obtained on the basis of the solution or dispersion containing a complex fluoride based on phosphonate, on the basis of at least one silane/siloxane and/or polysiloxane and/or on the basis of the compounds of rare earth elements. Such solutions or wash solutions can therefore be successfully used, in particular, to protect against corrosion, clean surface that will not be applied varnish or similar to a varnish coating. Conversion coating based on compounds of rare earth elements, for example on the basis of cerium oxide, can be used primarily on surfaces with a high content of aluminum, magnesium, titanium and/or zinc.

The examples and the comparison examples

Following examples are intended to further illustrate the subject matter of the invention.

A) Compounds with a high content of silanes

For the preparation of aqueous concentrates in accordance with table 1 to obtain an aqueous mixture has not yet been subjected to preliminary hydrolysis of silanes, which already contains glacial acetic acid and ethanol; that is, conducting the preliminary hydrolysis in the acidic environment of at least one silane within at least three days at room temperature under stirring, unless, of course, used silanes has not already been obtained. After that, in the appropriate case type pre proveraitaly silane, intensively mixed and in the appropriate case stand for some time at room temperature. Then dilute the concentrate with water and, if necessary, to set the pH value added is changing the pH of the medium, as ammonia and/or glacial acetic acid, to obtain a ready-to-use compositions for baths. After appropriate fluid is in each case applied knurling on at least 5 pre-treated sheets of steel cold rolling (CRS) or, respectively, of the steel sheet with double-sided galvanized by hot dip galvanizing and dried at 25°C. Treated in this way the sheets are dried at 90°C. in a dryer RMT and then test for corrosion resistance. The compositions and properties of the concentrates and compositions for baths, as well as properties of the coatings are presented in tables 1 and 2.

Silane a and B are free from fluorine silane contains fluoride. The silane And is a functionalized amino group of tralkoxydim that before adding it to the composition was subjected to hydrolysis in the course of only about two hours. Silane B represents a bis-tralkoxydim that to pribavleniia the composition was subjected to hydrolysis and was maintained for about three days. The silane represents a water-soluble florenceluxury with aminoalkyl functional group, which is added to the composition only after a long hydrolytic processing and aging. These data characterize the main part obtained by commercial products. Contained in the aqueous composition (concentrate or, respectively, in the bath) silanes are monomers, oligomers, polymers, copolymers and/or food interaction with other components in the reactions of hydrolysis, condensation and/or other reactions. The reactions take place primarily in solution during the drying or curing of the coating. The term “silane” is used to denote silanes, silanols, siloxanes, polysiloxanes and products of their transformation or their derivatives, which are often a mixture of “silanes”. All concentrates and compositions of the baths are stable for one week, they do not change and do not form precipitation. Adding ethanol is not performed. The ethanol content in the composition due to chemical reactions.

Polymer G is a thermoplastic polymer ethoxylates basis, which easily forms a film. Polymer D is a polyethylene copolymer. Particles of silicon dioxide and EUT average particle size of about 200 nm. To set the pH to the composition of the baths added monoethanolamine and/or ammonia. In addition, in examples (P) and comparison examples (PS) PS and from A11 to P in each case add nonionic surfactant in an amount of about 0.1 g/L. This additive surfactants provides better wetting the cleaned metal surface. This achieves a more uniform distribution of the film. In particular, in the case of metal surfaces of complex shape, or, especially, rough surfaces. Using such compositions have the coating thickness of the dried film is significantly less than 1 micron.

* A drop-down value in the measurement of the contact angle
the concentration Determination was not performed

The resulting film is transparent, uniform and have no gaps. With the exception of the film PO2 on the steel sheet, they shall not be painted. Structure, luster and color of the metal surface only slightly change the coating. Combining several silanes, including several smaller proportions were fluorinated silane, makes the Yan discernable improvement in anticorrosion effect even at relatively low concentrations of added fluorine-containing silane. On silane coating was not applied to any other coverage, then there is no primer or varnish layer. Performance anti-corrosion effect vary from 0 to 5, and 5 is the worst result. The choice of the system of free fluorine silane and/or fluorine-containing silane has justified itself, since all of these combinations give very stable solutions.

The thickness of the layer thus obtained coatings, even given at the initial stage of a variation of the method of application, is in the range from 0.02 to 0.16 μm, often in the range of 0.02 to 0.12 μm.

The wetting angle is determined on the device DIGIDROP Contact Angle Meter production GBX Scientific Instruments in double-distilled water according to the five dimensions for each sheet. The more the limiting wetting angle, the more hydrophobic the surface. In the example PO2 steel sheet coated in contrast to other sheets floor was painted in Golden color of rust that had a negative impact on the wetting angle. In addition, it was found that the contact angle is determined not only caused by the silane, but such effects in surface treatment, such as pH value. It was unexpectedly found that in these experiments appears surprisingly strong correlation between the hydrophobic properties of the surface coating, the wetting angle and corrosion at which the resistance of a system for coating.

It turned out that in many cases it is useful to give the surface some hydrophobic properties - they are determined by the value of the wetting angle and to ensure that the coating had a certain thickness and could serve as a protective barrier for corrosion. When the silanes to improve adhesion to the metal surface.

Thus obtained coating are particularly suitable for powder coating of varnish or lacquer solvent-based. In contrast lakiruyuschii formulations of water-based rejected.

B) the Composition of drilling fluids, mainly comprising silanes

Aqueous solutions prepared by analogy with a series of experiments (A) except that the compositions are chosen in accordance with table 3 and that leaves with a conversion coating on aluminum alloy AA 6063 cover by dipping in a solution bath for 1 minute at room temperature.

The sheets of aluminum alloy AA 6063 pre-process for applying a conversion coating based on enriched in cerium compounds of rare earth elements in accordance with the application for international patent # A1 01/71058.

The thickness of the layers corresponding to the invention of the coatings obtained with the wash solution is from 0.2 to 0.3 μm. Corresponding to the invention the coating is transparent, is about give a weak rainbow divorce. They are very uniform and very effectively enhance the anti-corrosive properties underneath conversion coatings based on oxides with a high content of cerium. Sheet metal on examples from A22 to P with the coating obtained in accordance with the invention using a wash solution has a corrosion resistance that is comparable to the classic yellow chromating, and it does not contain polluting substances. Hope of improving corrosion resistance is more than justified.

1. Aqueous composition for pretreatment of metal surfaces before coating or treatment of the metallic surface, characterized in that it contains
a) at least one hydrolisis and/or at least partially hydrolyzed free from fluorine silane,
b) not less than one hydrolisis and/or at least partially hydrolyzed containing fluorine silane, and
C) at least one chelate compound of the metal and/or
g) at least one organic film former, representing a monomer, oligomer, polymer and/or copolymer,
moreover, the ratio of the organic foaming agent (d) the silanes (a) and (b) in the concentrate or in the bath is in the range from 0.1:1 to 10:1,
and the ratio of the amounts of a) to b) in each case, which including produced from the products of the reactions, is in the range from 1:0.01 to 1:4,
this silanes comprising water-soluble or becomes water-soluble by hydrolysis and/or chemical reactions.

2. Method of coating a metal surface comprising contacting an aqueous composition for pretreatment of metal surfaces before coating or treatment of the metallic surface with a clean, etched, cleaned and/or pretreated metal surface to form on the metal surface of the film, which is dried and optionally utverjdayut, when this layer is dried and utverzhdenii film has a thickness in the range from 0.001 to 10 μm, and the aqueous composition contains
a) at least one hydrolisis and/or at least partially hydrolyzed free from fluorine silane,
b) not less than one hydrolisis and/or at least partially hydrolyzed containing fluorine silane, and
C) at least one chelate compound of the metal and/or
g) at least one organic film former, which represents an oligomer, a polymer and/or copolymer,
moreover, the ratio of the organic foaming agent (d) the silanes (a) and (b) in the concentrate or in the bath is in the range from 0.1:1 to 10:1,
and silanes in the composition are soluble in water or mill which become soluble in water due to hydrolysis and/or chemical reactions
when this aqueous composition may contain an organic solvent and almost completely or completely free from compounds of hexavalent chromium.

3. The method according to claim 2, characterized in that the free fluorine silane is chosen from the group alloccasion, alkoxysilane, a silane with at least one amino group, such as aminoalkylsilane, the silane with at least one group-based succinic acid and/or based on the anhydride of succinic acid, basilidian, the silane with at least one epoxy group, such as piridoksina, (meth)acrylation, multicellular, reideen, vinylsilane and/or silanol combined with caffeine and/or siloxane or siloxane, the chemical composition of which corresponds to the above silanes.

4. The method according to claim 2 or 3, characterized in that the free fluorine silane is chosen from the group:
glycidoxypropyltrimethoxysilane,
methacryloxypropyltrimethoxysilane,
(tralkoxydim)alkylsalicylate,
aminoethylaminomethyl,
(epoxycyclohexyl)allyltriethoxysilane,
bis-(trialkilsilil)amine,
bis-(tralkoxydim)ethane,
(epoxyethyl)dialkoxybenzene,
aminoalkylsilane,
ureidopenicillin,
N-(trialkilsilil)alkylenediamine,
N-(aminoalkyl)aminoalkylsilane,
N-(trialkilsilil)dialkylanilines,
the Oli(aminoalkyl)alkyldiethanolamine,
Tris(tralkoxydim)alkylsulfonate,
ureidopenicillin and acetoxysilane.

5. The method according to claim 2 or 3, characterized in that the free fluorine silane is chosen from the group:
3 glycidoxypropyltrimethoxysilane,
3 glycidoxypropyltrimethoxysilane,
3 methacryloxypropyltrimethoxysilane,
3 methacryloxypropyltrimethoxysilane,
3-(triethoxysilyl)prophylactically,
aminoethylaminomethyl,
aminoethylaminomethyl,
beta-(3,4-epoxycyclohexyl)ethyltriethoxysilane,
beta-(3,4-epoxycyclohexyl)ethyltrimethoxysilane,
beta-(3,4-epoxycyclohexyl)methyltriethoxysilane,
beta-(3,4-epoxycyclohexyl)methyltrimethoxysilane,
gamma-(3,4-epoxycyclohexyl)propyltriethoxysilane,
gamma-(3,4-epoxycyclohexyl)propyltrimethoxysilane,
bis(triethoxysilylpropyl)amine,
bis(triethoxysilylpropyl)amine,
(3,4-epoxybutene)triethoxysilane,
(3,4-epoxybutene)trimethoxysilane,
gamma aminopropyltriethoxysilane,
gamma-aminopropyltrimethoxysilane,
gamma-ureidopropionic,
N-[3-(trimethoxysilyl)propyl]Ethylenediamine,
N-beta-(aminoethyl)-gamma aminopropyltriethoxysilane,
N-beta-(aminoethyl)-gamma-aminopropyltrimethoxysilane,
N-(gamma-triethoxysilylpropyl)Diethylenetriamine,
N-(gamma-triethoxysilylpropyl)IER is elantrian,
N-(gamma-triethoxysilylpropyl)Diethylenetriamine,
N-(gamma-triethoxysilylpropyl)Diethylenetriamine,
poly(aminoalkyl)ethyldichlorosilane,
poly(aminoalkyl)methyldichlorosilane,
Tris[3-(triethoxysilyl)propyl]isocyanurate,
Tris[3-(trimethoxysilyl)propyl]isocyanurate and
vinyltriethoxysilane.

6. The method according to claim 2, characterized in that the fluorine silane is chosen from the group alloccasion, alkoxysilane, a silane with at least one amino group, such as aminoalkylsilane, the silane with at least one group-based succinic acid and/or based on the anhydride of succinic acid, basilidian, the silane with at least one epoxy group, such as piridoksina, (meth)acrylation, multicellular, reideen, vinylsilane and/or silanol combined with caffeine and/or siloxane, respectively, polysiloxan, the chemical composition of which corresponds to the above silanes, in which each individual case contains at least one group with at least one fluorine atom.

7. The method according to claim 6, characterized in that the aqueous composition contains at least one coralcalcium at least one mono-, di - or trifunctionally fluorine silane, at least one mono-, bis - or triptorelin at least one Persian on the basis of ethoxysilane and/or on the basis of ethoxysilane, and/or at meredin Persian with at least one functional group, for example, amino group, in particular in the form of such a product cocondensate, as, for example, perlchildexithandler, terminalscommercialised, formeasurement, ferroelectricity, triphenylarsine, dialkoxybenzene, trialkylborane and/or tridecafluoro-tralkoxydim.

8. The method according to any of claim 2, 6 or 7, characterized in that the fluorine silane has at least two amino groups and at least one ethyl and/or at least one methyl group.

9. The method according to claim 2, characterized in that the aqueous composition further comprises at least one component e)selected from the group:
d1) at least one inorganic compound in the form of particles with an average particle diameter, measured by a scanning electron microscope, in the range 0.005 to 0.3 microns in diameter,
d2at least one means for facilitating sliding
d3) at least one organic corrosion inhibitor,
d4at least one corrosion pigment,
d5at least one means for neutralizing and/or steric stabilization artificial resins,
d6) at least one organic solvent,
d7) at least one siloxane,
d8at least one long-chain alcohol and
9at least one surface-active substance.

10. The method according to claim 2, characterized in that the organic foaming agent is a mixture of synthetic resins, comprising at least one polymer and/or at least one product of copolymerization and comprising a synthetic resin on acrylate, epoxide, ethylene, urea, phenolic, polyester, polyurethane, styrene, Starovoitova and/or the vinyl-based.

11. The method according to claim 10, characterized in that the organic film former containing as a resin, an organic polymer, copolymer and/or mixture thereof based on polyethylenimine, polyvinyl alcohol, polyvinylformal, polyvinylpyrrolidone and/or poliasparaginovaya acid, in particular copolymers with a phosphorus-containing vinyl compound.

12. The method according to claim 10 or 11, characterized in that use artificial resin, the acid groups are stabilized by ammonia, amines, such as morpholine, dimethylethanolamine, diethylethanolamine or triethanolamine, and/or compounds of alkali metals, for example sodium hydroxide.

13. The method according to claim 2, characterized in that use aqueous composition containing from 0.1 to 980 g/l of organic film-forming agent, in the preferred case from 2 to 600 g/L.

1. The method according to claim 2, characterized in that use aqueous composition containing from 0.05 to 300 g/l of at least one free from fluorine silane, including formed from the products of transformations.

15. The method according to claim 2, characterized in that use aqueous composition containing from 0.01 to 150 g/l of at least one fluorine silane, including formed from the products of transformations.

16. The method according to claim 2, characterized in that at least one chelate compound of the metal selected from groups: chelate complexes based on acetylacetonates, acetoacetic esters, acetone, alkylenediamines, amines, lactates, carboxylic acids, citrates and/or glycols, and the content of at least one chelate compound in an aqueous composition, including the possible products of its transformation, in the preferred case is from 0.1 to 80 g/L.

17. The method according to claim 9, wherein as the inorganic compounds in the form of particles add finely ground powder, a dispersion or a suspension, for example, carbonate, oxide, silicate or sulfate, in particular colloidal and/or amorphous particles.

18. The method according to claim 9, wherein as the inorganic compounds in the form of particles add particles on the basis of at least one compound of aluminum, barium, cerium, calcium, lanthanum, silicon, titanium, yttrium, the Inca and/or zirconium.

19. The method according to claim 9, characterized in that as to facilitate the sliding means using at least one wax selected from the group of paraffins, polyethylene and polypropylene, in particular oxidized wax, and the content of waxes in water composition in the preferred case is in the range from 0.01 to 5 wt.%.

20. The method according to claim 2, characterized in that the coating formed in the drying and film formation and/or by curing by irradiation, cationic polymerization and/or by the formation of a reticular structure when heated.

21. The method according to claim 2, characterized in that the applied aqueous composition additionally contains at least one additive, in particular at least one of them is selected from the group: a biocide, a means to reduce foaming and/or wetting agent.

22. The method according to claim 2, characterized in that the metal surface with the coating is dried at ambient temperature in the range from 20 to 400°C.

23. The method according to claim 2, characterized in that the aqueous composition is applied by roller coating, by watering, rolling, spraying, aerosol spraying, with a brush or by dipping and, if necessary, subsequent wringing roller.

24. The method according to claim 2, characterized in that the dried and utverzhdennuyu film is applied to at least one floor in the ideal color imprinting, foil, varnish, similar to a varnish material powder varnish, adhesive and/or media adhesives.

25. The method according to claim 2, characterized in that the metal strips or segments strips coated recycled, varnished, coated with polymers, such as polyvinyl chloride, get stamped, glued, put the hot soldering, welding and/or connect among themselves or with other elements by riveting or by other methods.

26. The application of a metal substrate covered with a method according to any of claim 2 to 24 in the form of wire, strip, sheet or block for coiling wire, as wire netting, steel strip, sheet, coating, screen, body, or body parts, parts of a vehicle, trailer, house trailer or aircraft, roof, housings, lamps, lamp, item, pendant lamp, piece of furniture or parts of furniture, of the element of the household appliance, rack, profiles, molded articles of complex geometry, element guide bar, heater or fences, shock rod, parts consisting of pipes and/or profile or comprising at least one pipe and/or profile, frame of window, door or Bicycle, or such small details as a screw, nut, washer, spring or spectacles.

27. Prima is giving composition according to claim 1 or any one of claim 2 to 19 and 21 as a wash solution, which is applied to the prior coverage, such as conversion coating, and/or as a composition for protection against corrosion, clean surface.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention concerns composite material for surface coating for units and parts of aggregates, machines, devices requiring corrosion protection and operating for long time in high-temperature (up to 500°C) flow of natural gas combustion products, represented mainly by water and carbon dioxide (CO2), e.g. for gas turbine elements. Composite material includes the following components at indicated ratio, in wt %: 53.6-68.4 of aluminium powder filler and 46.4-31.6 of binder. Liquid glass with 1.40-1.45 g/cm3 density and 2.85-3.05 modulus or its aqueous solution with 1.12-1.18 g/cm3 density and 2.85-3.05 modulus is used as binder.

EFFECT: enhanced corrosion and adhesion resistance of coating operated in conditions of cyclic high-temperature load up to 500°C.

5 tbl, 4 ex, 1 dwg

FIELD: metallurgy.

SUBSTANCE: inventions relate to versions of receiving method of protective coating on products made of low-alloyed and carbon steel, continuous operating in high-temperature up to 500°C flow of combustion materials of natural gas, corresponding substantially water and carbonic acid (CO2), for instance gas turbine components. The first version of the method consisting in on product surface it is applied at least one layer of composite material and implemented it's drying. Composite material is received by blending of binding sodium or potassium liquid glass with density 1.42-1.44 g/cm3 and modulus 2.85-3.05 with water up to receiving of solution with density 1.12-1.18 g/cm3, and introduction of dry filler of aluminium powder in correlation to solution amount - 1.2-2.1. The second version of the method consisting in on product surface it is applied at least one layer of composite material, received by blending of sodium or potassium liquid glass with density 1.42-1.44 g/cm3 and modulus - 2.85-3.05 with water up to receiving of solution with density 1.12-1.18 g/cm3, by addition of aluminium powder in correlation to solution amount - 1.2-2.1. Then it is implemented layer drying and it is applied layer made of above mentioned binding with density 1.12-1.15 g/cm3. Then it is implemented final drying.

EFFECT: invention provides receiving of coating operating in conditions of cyclic high-temperature loading up to 500°C, and also to increase its durability and corrosion resistance.

12 cl, 3 ex, 3 dwg

FIELD: chemistry.

SUBSTANCE: invention refers to polymeric compound for improved corrosion resistance coating to be used for corrosion protection of structural components of metal and concrete buildings, pipelines, metal carriers and assemblies for various engineering fields, to design wear-proof self-levelling floors being solvent and oil resistant, as well as for decorative finish of the surfaces specified above. The compound is two-component and is generated by combining component A and component B in ratio 1:0.01 to 1:100. Component A contains the following components in ratio, wt %: diane epoxy resin 60-62, aliphatic epoxy resin 12-13, basalt bulk additive 26-27. Basalt bulk additive is andesite basalt scale of fraction size 0.001-0.4 mm. Component B is mixed oligoamide hardener in amount 71-73 wt % and specified andesite basalt scale in amount 27-29 wt %. Hardener is aromatic oligoamide ETAL. Invention allows for lower toxicity of compound, improved barrier protective properties, and extended functional area.

EFFECT: lower toxicity of compound, improved barrier protective properties, and extended functional area.

2 tbl

FIELD: chemistry.

SUBSTANCE: invention refers to versions of solidificated powder coating composition and to method of cathodic protection of steel substrate. According to the first version, the composition contains as follows: (a) thermosetting resin, (b) zinc borate compounds in amount 0.5 to 4.75 wt % in relation to total solid weight, (c) curing agent for the specified structure, in amount effective for coating solidification, (d) filler, pigment and additive. Thermosetting resin is epoxy with functional groups of A/epichlorhydrin bicphenol. Curing agent is accelerated dicyandiamide or phenolic curing agent. According to the second version, the composition contains thermosetting epoxy, curing agent specified above, and zinc borate compound in amount 0.5 to 4.75 wt % in relation to total solid weight. Method of cathodic protection consists that steel substrate is machined and covered with the composition of the first version. It is followed with polarisation of steel substrate covered as cathode.

EFFECT: higher long-time cathodic disbandment resistance with high temperature and humidity application.

14 cl, 3 tbl, 6 ex, 1 dwg

FIELD: chemistry.

SUBSTANCE: an active base - wastes from production of perchlorocarbons, which is a mixture of saturated and unsaturated perchlorocarbons, chlorohydrocarbons and resinous wood are mixed with a solvent at 70-90°C temperature for 1.0-1.5 hours. Dioctylphthalate, "ХП-470" chloroparaffins, epoxy resin "ЭД-20" or "ЭД-18", polyethylenepolyamines or polypropylenepolyamines are then added. The mixture is then stirred at 75-85°C for 1.5-2.0 hours. The components of the composition are taken in the following ratio, in wt %: 40-50 of the above mentioned active base, 0.4-1.6 dioctylphthalate, 0.1-0.4 "ХП-470" chloroparaffins, 2.0-4.5 epoxy resin "ЭД-20" or "ЭД-18", 0.2-1.4 polyethylenepolyamines or polypropylenepolyamines, and solvent constitutes the rest.

EFFECT: increased resistance to effect of aggressive media and simplification of preparation of the composition.

3 cl, 1 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: according to the first version of the method, an active base - resinous wood, separated through steam distillation from non-recycled wastes from production of epichlorohydrin, is heated to 55-70°C for 0.5-1.0 hours. Epoxy resin "ЭД-20" or "ЭД-18", dioctylphthalate and a solvent are then added. The reaction mixture is stirred at 45-80°C for 1.0-1.5 hours. The components are taken in the following ratio, in wt %: 65-85 active base, 2.0-3.5 of the above mentioned epoxy resin, 0.4-0.6 dioctylphthalate, and solvent constitutes the rest. The second version of the method involves mixing the active base - resinous wood, separated through steam distillation from non-recycled wastes from production of vinyl chloride, and a solvent at 60-70°C for 2 hours. Dioctylphthalate is then added, as well as epoxy resin "ЭД-20" or "ЭД-18" and polyethylenepolyamines, and the reaction mixture is kept at 65-75°C for 2 hours. The components are taken in the following ratio, in wt %: 60-80 active base, 0.35-0.5 dioctylphthalate, 2.8-3.5 of the above mentioned epoxy resin, 0.6-1.2 polyethylenepolyamines, and solvent constitutes the rest.

EFFECT: increased resistance to effect of aggressive media and simplification of preparation of the composition.

4 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: corrosion-resistant coating can be used for time-interval corrosion prevention (conservation) of contact surfaces of frictional bolted assemblies within large-sized bridge steel-works transported and stored after manufactured at factory of origin. Corrosion-resistant coating is made of composition containing chlorvinyl enamel CV-114, slightly soluble corrosion inhibitor Acor-1 and rheological additive that is modified carbamide solution in N-methylpyrrolidone, deposited on metal surface been layered, vapour blasted and hardened.

EFFECT: elimination repeated vapour blasting of contact surfaces of joint steel-works prior to be field mounted, and maintaining of friction properties of vapour blasted metal surfaces joint with high-strength hardware.

3 cl

FIELD: chemistry.

SUBSTANCE: present invention pertains to the method of putting an overhead coating on the roof of a passenger car unit so as to form multilayered automobile overhead coatings. The method involves attaching an overhead coating, containing a surface layer of fibre from cellulose acetate, to the roof of a passenger car unit. Before putting the overhead coating on the surface of the roof of the passenger car unit, a composition is deposited, which contains cellulose ester. Then later, the overhead coating and/or surface of the roof of the passenger car unit is exposed to action of plasticising solvent, brought into contact and after that, held together, thus attaching overhead coating.

EFFECT: improved attachment of coatings on a passenger car unit.

5 cl, 4 ex

FIELD: chemistry.

SUBSTANCE: composition includes binding agent - modified with hexamethylentetramine mixture of tal pitch and technical lignosulfonates in presence of catalyst - zinc oxide, tal modified colophony, pigments - aluminium powder and titanium dioxide, zinc phosphate, neutralising filler - calcium oxide and/or calcium hydroxide and/or chalk and/or microcalcite and/or microtalc, hardener- polyethylenpolyamine and organic solvent. Composition is obtained by first mixing (modification) mixtures of tal pitch, technical lignosulfonates and hexamethylentetramine at temperature 120-140°C in presence of catalyst - zinc oxide. Mixture is cooled, tal modified colophony, pigments are added. Neutralising filler, hardener and solvent are added.

EFFECT: increased light-resistance of coating, extension of colour range and quick drying.

3 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention concerns method of protection and recovery of corroded metal surfaces operating in abrasive wear conditions and aggressive media, e.g. in fertiliser transportation, and can be applied in power-producing, chemical and mining industry for rusted equipment repair. Method involves application of primer layer on metal surface with further drying till aftertack, insulation layer with further drying till aftertack, and external layer with further drying to complete hardening. Primer layer is made of composition including the following components, wt %: 20.0-30.0 of epoxy diane resin with epoxy equivalent weight of 450-500, 15.0-25.0 of Versamid 115 polyamide solidifier, 12.0-25.0 of pigments, 12.0-25.0 of fillers, 2.0-5.0 of amine-containing Cardolite NC 562 solidifier based on 3-n pentadecanylphenol, the rest is organic solvents. Insulation layer is made of composition including the following components, wt %: 20.0-35.0 of epoxy diane resin with epoxy equivalent weight of 450-500, 15.0-30.0 of Versamid 115 polyamide solidifier, 5.0-10.0 of fillers, 10.0-50.0 of micaceous iron ore, 2.0-5.0 of amine-containing Cardolite NC 562 solidifier based on 3-n pentadecanylphenol, 0.8-1.2 of structurising additive, the rest is organic solvents. External layer is made of composition including the following components, wt %: 20.0-40.0 of acrylic or polyether hydroxyl-containing resin, 11.0-22.0 of aliphatic isocyanate solidifier, 10.0-20.0 of pigments, 10.0-40.0 of micaceous iron ore, 5.0-10.0 of fillers, 0.2-0.6 of polysiloxane modified organically, 0.8-1.2 of structurising additive, 0.6-2.4 of aluminum powder, the rest is organic solvents. Composition of external layer includes additionally Metatin Catalyst tin dibutyllaurate in amount of 0.05-0.5 wt % as drying accelerator.

EFFECT: enhanced corrosion resistance of coating.

cl, tbl, 2 ex

Heat protective dye // 2245350

FIELD: chemical industry, paint-vehicle systems, in particular heat protective dyes.

SUBSTANCE: claimed dye contains ceramic and corundum microspheres; resins, selected from group including silicone resin, polyesterepoxy resin, acrylic resin dispersions as binder; pigment; and aluminum powder as deflector. Such composition provides reduced heat loss into environment. Obtained dyes have thermal gradient, improved heat-retention properties and strength, and useful in corrosion and heat-loss protection of building construction, transport, gas and oil lines, heating systems, etc.

EFFECT: easier method for dye production; strength and homogenous heat protective dye layer of improved adhesiveness.

2 cl, 3 tbl

FIELD: polymer materials and corrosion protection.

SUBSTANCE: invention relates to cold-drying anticorrosive coating compositions, which can be used in petroleum, gas, power, chemical, and other industries for protection surfaces of iron articles and structures. Composition of invention is based on binder, namely alkyd-styrene resin or poor alkyd resin in amount 11.0-44.0%. Composition further comprises 0.3-5.0% tannin or tannin derivatives as anticorrosive additive, 3.0-24.0% pigments, 5.0-22.-% fillers, and balancing amount of organic solvent.

EFFECT: enhanced protective properties.

4 cl, 2 tbl, 5 ex

FIELD: corrosion protection.

SUBSTANCE: protective ground paint for painting coiled metal and electrochemical protection of bridges, power lines, and other long term-use metallic structures contains, wt %: epoxide resin 9.0-29.0, polyamide resin 3.0-9.5, pigment 23.0-36.0, zinc nanoparticle preparation 3.0-5.0, filler 13.0-23.2, and solvent - the balance. Zinc nanoparticle preparation is introduced in the form of (0.4-4)x·10-3 M solution in isooctane.

EFFECT: enhanced protective properties.

2 tbl, 4 ex

FIELD: pipeline heat insulation in civil and industrial building.

SUBSTANCE: coating composition includes 5-95 vol.% of polymeric binder and 5-95 vol.% of hollow microspheres. At least one composition layer is coated onto substrate and dried. Said polymeric binder contains 10-90 % of (co)polymer selected from acrylate homopolymer, styrene-acrylate copolymer, butadiene-styrene copolymer, polyvinylchloride, polyurethane, vinylacetate polymer or copolymer or mixture thereof. Binder also contains 10-90 vol.% of water and surfactant mixture. hollow microspheres have particle size of 10-500 mum and bulk density of 50-650 kg/m3, and made from glass, ceramic, polymers, sol or mixture thereof.

EFFECT: improved corrosion resistance and heat insulation of coated substrate; increased adhesion properties.

5 cl, 1 tbl, 1 ex, 3 dwg

FIELD: organic chemistry, in particular composition for corrosive and chemically stable coats.

SUBSTANCE: invention relates to alkyd-epoxy undercoat compositions based on debris from phthalic anhydride and epoxy resin distillation. Claimed composition contains (mass %) epoxydianic resin 45.0-45.4; modified alkyd resin obtained by stepwise esterification of sun flower oil, polyhydric alcohol and slop from phthalic anhydride distillation with grain-size classification of 0.05-1.1 mm and phthalic anhydride content of 37-80 % - 36.0-36.3; filler 4.9-5.5; pigment 3.5-3.8; balance: solvent; and over 100 mass % of composition it contains polyethylene polyamine as curing agent 15, and cobalt naphthenate as curing catalyst 1.8. Composition of present invention is useful in coating of metal parts and various constructions.

EFFECT: undercoat composition of high corrosion resistance, strength and lower cost.

2 tbl, 1 ex

FIELD: building materials.

SUBSTANCE: invention relates to a method for preparing compositions used for covers, among them to corrosion-water-fuel-resistant covers by nonferrous metals, concrete and ceramics in moisture and aggressive media. The composition comprises the following mass ratio of the parent components, %: film-forming mixture comprising oligomeric carboxyl-containing butadiene-nitrile rubber, 10.9-28.1 and epoxy-diane oligomer, 7.0-10.9 in the mass ratio of epoxy-diane oligomer and rubber from 19.9:80.1 to 50.0:50.0; hardening agent, 5.9-18.1; solvent, 41.0-51.1; filling agent, 1.4-1.6, and pigment, 13.6-16.4. Film-forming agent is heated preliminary at temperature 90-120°C to the conversion degree of carboxyl groups 8.8-25.2%. Mixture of γ- and β-aminopropyltriethoxysilanes is used as a hardening agent in the mass ratio = (67-75):(25-33), or 45-55% solutions of products of hydrolytic condensation of mixture of γ- and β-aminopropyltriethoxysilanes in cyclohexanone or toluene. Invention provides enhancing the strength of cover in direct/reverse impact, adhesion in moisture media, resistance to defoliation in storage and bending, to reduce swelling capacity in water.

EFFECT: improved, enhanced and valuable properties of composition.

2 tbl, 4 ex

FIELD: composition materials.

SUBSTANCE: invention relates to a method for preparing the composition cover that can be used for recovery worn out article surfaces working under conditions of high compression loadings, bearing surface of lateral framework in loading truck car in zone of slipping aperture. Method involves mixing the polymerizing epoxy composition and metallic dispersed filling agent in the ratio = (1:6)-(1:9) mas. p. p. Mixing is carried out at effect in increasing pressure in auger mixer with alternate step being each the following auger step differs from previous step by the constant value. Then the prepared composition is applied on metallic surface and kept its at the polymerization temperature up to finishing the solidification process. Composition based on epoxy resin ED-16, ED-20 with latent hardening agent dicyandiamide is used as epoxy composition. Iron powder PZH-4, iron-base powder PS 27-M, iron-base PG-USCH-35, nickel-base powder PG-SP2-M are used as a metallic dispersed filling agent. Invention provides enhancing the specific compression loading value.

EFFECT: improved method for preparing, valuable properties of cover.

5 cl, 1 tbl, 1 dwg, 6 ex

FIELD: metal-protecting materials.

SUBSTANCE: invention relates to protection of metals against corrosion using paint and varnish coatings. Invention proposes using as anticorrosive pigments co-precipitated manganite-phosphates, manganite-silicates, manganite-sulfates of metals of the general formula: MMnOxnMZ wherein M means Ca2+, Zn2+, Fe2+, Sr2+ at Z - PO43-, SiO32-, and M means Ba2+ at Z - SO42-, PO43-, SiO32-; x = 2.5-3; n = 0.5-10 with the content of co-precipitated manganite of corresponding metal from 5 to 70 wt.-% as anticorrosive pigments. Proposed pigments by their anticorrosive properties exceed that of zinc tetraoxychromate. Invention provides applying low toxic anticorrosive pigment-inhibitors with protective properties comparable with that of chromate pigments.

EFFECT: expanded assortment of anticorrosive pigments.

1 tbl

FIELD: polymeric protective coatings.

SUBSTANCE: invention relates to compositions forming anticorrosive coatings on reinforced concrete, concrete, and bricks and which, in particular, can be employed for anticorrosive protection of concrete floors, large-size metallic containers, pipelines, brick basements, bottoms, cattle-breeding farms, open-type swimming pools, and also air conduits, piping, and other metallic structures in industrial buildings, and near production enterprises producing corrosive emissions into atmosphere. Coating according to invention is composed by copolymer obtained via copolymerization of vinyl ether with methyl methacrylate at weight ratio (3-6):1 in presence of azo-bis-isobutyronitrile followed by dissolution of copolymer in toluene. Vaporization of the latter leaves film protecting surface from destruction.

EFFECT: enhanced protection efficiency.

10 tbl

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