Aqueous bicomponent joining composition

FIELD: special compositions.

SUBSTANCE: invention relates to a method for preparing an aqueous bicomponent joining composition as a cover or adhesive for different backings, such as aluminum, steel, galvanic steel, copper, zinc, magnesium and their alloys, and can be used in automobile industry for external finishing large means of transportations. The composition comprises an aqueous dispersion of at least partially neutralized polymer representing a derivative of amino-functional epoxide and organic compound comprising at least two acetoacetate groups or acetoacetamide groups or combination of two groups. Invention provides preparing covers showing high polish, good waterproofing and resistance to solvents, high hardness and adhesives of high adhesive strength.

EFFECT: improved and valuable properties of composition.

27 cl, 51 ex

 

The present invention relates to aqueous two-component slivaushiesia composition containing the aqueous dispersion amidofunctional polymer and the compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups.

The reaction mechanism, in which the linker is as follows:

or

The advantage of this two-component compositions is that the curing can be achieved at low temperatures, such as ambient temperature, or for a short time at elevated temperatures, for example 30 to 60 minutes at 60°C.

The disadvantage of this two-component composition is limited viability due to premature reaction in the composition, causing a large increase in viscosity and subsequent gelation. In particular, the interaction between the primary amino group and acetoacetate group or acetoacetamide group is much faster for actual use in two-component systems.

First of comparable two-component system was soluble in solvents based on a combination of polyacetate and polietileno (Ketobemidone amines), as described in U.S. patent 3668183, work is K.L.Hoy et al., Journal of Paint Technology, Vol. 46, No. 591, pp.70-75 (1974) and ..Carder et al., Journal of Paint Technology, Vol.46, No. 591, R-80 (1974). These systems are actually systems, moisture-curable, because the stage that determines the speed of this reaction is the release ketimine in the amino group and a ketone by hydrolysis.

U.S. patent 5227414 describes aqueous two-component coating composition based on an aqueous dispersion amidofunctional polyurethane and epoxy cross-linking agent. The disadvantage of these systems is that of curing at ambient temperature is relatively slow.

Thermosetting aqueous coating composition based on the variance of amidofunctional polymer described in U.S. patent 4096105. These aqueous dispersions amidofunctional polymer bound unsaturated carbonyl compounds, such as acryloylmorpholine connection, and are used in cathodic electrodeposition.

The present invention provides two-component water slivaushiesia composition based on an aqueous polymer dispersion, which is derived amidofunctional epoxide and compounds containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups. This composition allows to obtain coatings with high gloss, good spand what nostu and resistance to solvents and high hardness. This composition also allows the adhesive with high adhesive strength.

According to the invention include a water component schivas composition containing:

A) an aqueous dispersion of at least partially neutralized polymer derived amidofunctional epoxide, and

B) a compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups.

Polymer derived amidofunctional epoxide can be obtained from:

a) at least one biaoxing connection

b) at least one amidofunctional compounds containing at least one primary amino group selected from the

1) of the alkylamine with 2-20 carbon atoms in the alkyl group,

2) simple polyetheramine with Mn=500-3000,

3) N-acylaminoalkyl and/or

4) N-hydroxylaminopurine, and

C) at least one compound containing at least one-NH-group and at least one ketimines group.

Usepackage compound (a) is selected preferably from simple diglycidyl ethers of bisphenol a and F, or their high molecular weight homologues, such as resin Epikote® from the company Shell, for example, Epikote® 828 and Epikote® 1001, simple diglycidylether ether Gadirov the aqueous Bisphenol a, such as Eponex® 1510 from Shell company, various simple diglycidyl esters of polyethylene glycol or polypropyleneglycol and mixtures thereof.

Examples of alkylamines followed (b1) include alkylamines followed with other functional groups, such as ethanolamine. Preferably alkylamine has 6-18 carbon atoms in the alkyl group. Typical examples are octylamine, dodecylamine, tetradecyl and their mixtures, such as Armeen® CD from Akzo Nobel Chemicals.

Preferably simple palifermin (b2) is selected from C1-C4-alkoxyalkanols/polyoxypropyleneamine. Examples include methoxypolyethylene/polyoxypropyleneamine, which are available from the company Texaco under the trademark Jeffamine®such as Jeffamine® M-1000 (ON/EO=3/19; Mn=1176) and Jeffamine® M-2070 (/EA=10/32; Mn=2200).

The use of N-acylaminoalkyl (b3) and N-hydroxylaminopurine (b4) gives a branching structure, as these amines have a functionality of 3 with respect to basepagename connection. Accordingly receive epoxy functionality greater than 2. Preferred is a functionality of 2-3,5. At higher functionalities, there is a risk of gelation during synthesis.

One example of N-acylaminoalkyl (b3) is an N-ethylethylenediamine.

One example of N-hydroxylaminopurine(b4) is 2-(2-aminoethylamino)ethanol.

It was found that the introduction of a non-ionic group of the polyether in the polymer derived amidofunctional epoxide provides the best colloidal stability, smaller size particles water dispersion and improve the emulsification of the compound In the polymer dispersion, which is derived amidofunctional epoxide. Therefore, it is preferable that amidofunctional compound (b)containing at least one primary amino group contained simple palifermin (b2). Some combinations amidofunctional compounds with simple polyetheramines (b2) are preferable, such as simple palifermin (b2), combined with alkylamino (b1) with 2-20 carbon atoms in the alkyl group, and a simple palifermin (b2) N-hydroxyethylaminophenol (b4).

Compounds containing at least one-NH-group and at least one ketimines group, (C) is produced by interaction of the compound bearing a primary amino group and secondary amino group with a ketone. Examples of compounds bearing a primary amino group and secondary amino group include Diethylenetriamine, dipropylenetriamine, digoxigenin, Triethylenetetramine, dipropylenetriamine, N-AMINOETHYLPIPERAZINE, N-methyl-1,3-propandiamine, 2-(2-aminoethylamino)ethanol and N-ethyl-Ethylenediamine. Corresponding to the reamers ketones include acetone, methyl ethyl ketone, diethylketone, methyl isobutyl ketone, dibutyltin, Diisobutylene, ethylmercaptan and methylhexanoate.

Polymers derived amidofunctional epoxide, preferably receive the first stage of elongation of the chain bisepoxy amidofunctional a compound containing at least one primary amino group. Bisepoxy used in excess, so that the formed prepolymer with end epoxypropoxy. In the second stage the prepolymer with end epoxypropoxy additionally interacts with cetaminophen compound, also containing a-NH-group.

Depending on the molecular weight of the polymer derived keteninformatisering epoxide, can be synthesized in the melt or in an organic solvent such as a ketone, a simple glycol ether, a simple propylene glycol ether or a simple cyclic ether. Examples include methyl ethyl ketone, diethylketone, methyl isobutyl ketone, butylglycol, 1-methoxypropanol, dioxane and tetrahydrofuran. The reaction temperature is in the range from 40 to 150°and preferably between 60 and 120°C.

The so formed polymer derived keteninformatisering epoxy resin, is dispersed in water with sufficiently volatile organic acid transformation cetaminophen groups to primary amino groups of the ketones, and with the formation of the salt of the acid with 10-100% of the amino groups, preferably 20-75% of the amino groups, with the subsequent removal of the ketone and solvent (azeotropic) distillation, optionally under reduced pressure, preferably under vacuum. Education groups, salts of acid means that 10-100%, preferably 20-75% of the amino groups are neutralized.

Examples used volatile organic acids are formic acid, acetic acid, lactic acid and propionic acid. In combination with the specified volatile organic acids can be used also small quantities of other acids, such as sulfuric acid, hydrochloric acid and phosphoric acid. Preferred are acetic acid and lactic acid, and combinations thereof with phosphoric acid.

As the amino group of the polymer dispersions derived amidofunctional epoxide, at least partially, proteinous volatile organic acid, they effectively delay the crosslinking reaction, so that it may be received increased vitality.

A number of technologies dispersion can be used for dispersion polymer derived keteninformatisering epoxide in water. For example, the organic acid may be added to the polymer solution, which is derived keteninformatisering epoxide is a place with a small amount of water to release the amine groups. Specified a concentrated solution of the polymer derived amidofunctional epoxide can then be added to water under stirring (direct emulsification). Alternative after adding the organic acid water can be added slowly to the polymer solution, which is derived keteninformatisering epoxide (inverse emulsification).

The specified polymer derived amidofunctional epoxy resin has an average molecular weight Mn 500-10000, preferably 1000-8000, more preferably 1500-6000 measured displacement chromatography in size using polymethyl methacrylate as the standard, amine number of between 20 and 500 mg KOH/g, preferably 30-150 mg KOH/g and optionally up to 20 wt.%, preferably 4-15 wt.% simple polyetheramine.

Aqueous dispersion of a polymer derived amidofunctional epoxide has a particle size of 10-500 nm, preferably between 15 and 300 nm, more preferably between 20 and 150 nm. The dry matter content is between 20 and 50 wt.%, usually between 30 and 45 wt.%. pH of the aqueous dispersion is between 7 and 10, preferably between 8 and 9.

A compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups, (C) can be politicoinstitutional with the unity, politicoinstitutional compound or a compound containing at least one acetoacetate group and at least one acetoacetamide group.

Preferably the compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups, (C) is an organic compound. "Organic compound" in this context is defined as a hydrocarbon compound that does not contain metal atoms.

The compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups, (C) preferably has a functionality 2-5. They can be synthesized in various ways.

Polyacetate can be obtained by transesterification polyhydroxylated compounds complex ester of acetoacetic acid. Examples are 1,6-hexaniacinate, 1,5-potentialcustomer, trimethylolpropane, pentaerythritoltetranitrate and diameteroperating. Acetoacetanilide connection can also be obtained by transesterification product of interaction of diisopropanolamine and Eponex® 1510 with tert-butylacetoacetate.

Polyacetate can be obtained from hydroxyquinolines of acetoacetamide with the polyfunctional isocyanate. An example is include the product of the interaction of N-(2-hydroxyethyl)acetoacetamide and triisocyanate, such as 4-isocyanatomethyl-1,8-octadienal, or MDI, such as isocyanurate or allophanate the trimer of 1,6-hexamethylenebis-cyanate.

Possibly up to 15 wt.%, preferably up to 10 wt.%, C1-4-alkoxyalkanols group with Mn=500-3000 introducing a compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups. This modified compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups can be obtained by the interaction of the above compounds with a small number of simple polyetheramine, such as the previously mentioned Jeffamin®or methoxypolyethyleneglycol.

Alternative politicoinstitutional resin can be obtained by the MDI interaction, alkoxyalkanols, diol and tert-butylacetoacetate.

Especially used politicoinstitutional urethane obtained from the product of the interaction of 1 mol of glicerinstearat and 1 mol of 3-aminopropanol

esterified 3 mol tert-butylacetoacetate, obtaining trifunctional of acetoacetotoluidide. The substitution of small amounts of 3-aminopropanol Jeffamine® M-1000 provides a modified acetoacetanilide the connection in which it can be found in groups of the polyether.

It was found that the introduction of a non-ionic polyether group in the compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups, improves emulsification of the compound In water and/or aqueous dispersions derived from epoxide amidofunctional polymer.

An alternative compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups can be acetoacetate and/or acetoacetanilide resin, such as acetoacetate and/or acetoacetanilide the polyacrylates or polyurethanes.

The compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups, can be used as such in the form of a concentrated solution in an organic solvent, in the form of a concentrated solution in water or in aqueous emulsion.

The specified compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups has acetoacetate and/or acetoacetamide number of 150-500 mg KOH/g, preferably 200-450 mg KOH/g, and possibly up to 15 wt.%, preferably up to 10 wt.% simple polyester group.

The compound containing at least two acetoacetate group, or acetoacet enye group, or a combination of the two groups, and aqueous dispersion of a polymer derived amidofunctional epoxide, should be mixed in such proportions that the ratio acetoacetate groups and/or acetoacetamide groups to amino groups was in the range of 0.2 to 2:1, preferably 0.5 to 1.5:1.

The connection may be mixed with the connection And any appropriate way. However, simple mixing is usually sufficient. Viability can vary from several hours to several weeks. In this respect, polyacetate show much greater vitality than polyacetate.

Perhaps, to the composition may be added amoxilonline connection (S). Examples of such amoxilonline compounds include monoatomically compounds such as Cardura® E10 (supplier - firm Schell), 3-glycidylmethacrylate (e.g., Silquest® A-187 (supplier - firm Witco), Dynasylan® Glymo (supplier - firm Degussa Hüls AG) or Dow Corning® Z-6040 (provider - the company Dow Corning) and (3,4-epoxycyclohexyl)-ethyltriethoxysilane (for example, Coatsil® 1770 (provider - the company Witco), and preparefinancially compounds such as Epikote® 828 (supplier - firm Shell) and Ancarez® AR550 (supplier - firm Air Products). Amoxilonline connection can be used in amounts of 10-40 EQ.% apachegroup the on-NH 2group, preferably 20-35 EQ.%.

The composition of the present invention consists essentially of the water component of the aqueous composition. However, about 20 wt.% the liquid component of the composition may be an organic solvent. As suitable organic solvents can be specified hexillion, butoxyethanol, 1-methoxypropanol-2,1-ethoxypropanol-2,1-propoxyphenol-2,1-butoxypropan-2,1-isobutoxide-2, dipropylenetriamine simple ether, methanol, ethanol, propanol, butanol, pentanol, hexanol, ethylene glycol, diethylene glycol, dimethyldiphenyl, datetoday alcohol, simple methyl ether diacetone alcohol and amoxicillin. Volatile organic compounds composition can be in the range 0-400 g/l, preferably from 0 to 200 g/l, most preferably 0-100 g/l

The composition may contain other compounds such as pigments, effective pigments, such as aluminum particles, UV absorbers, adhesion promoters, such as epoxysilane, stabilizers type HALS (spatial employed amines), additives that improve the fluidity, fillers, dispersing agents, dyes, leveling additives, agents against rabini and antifoams.

These compositions are particularly interesting in the compositions of coatings or adhesives. predpochtitelno use two packages of the composition. Preferably the first component dvuhpilonnogo coating or adhesive contains a compound, Whereas the second component of the composition contains a compound Century, Perhaps, the connection may be present either in one or in both components. Preferably the connection is combined with the connection In the second component.

The composition according to the invention can be used on various substrates, in particular wood, plastic and metal substrates such as aluminum, steel, galvanized steel, aluminum, copper, zinc, magnesium and their alloys for industrial applications of any kind.

The coating composition can be used, for example, as a filler, primer, filler, bottom layer, the top layer or a transparent layer. Preferably the coating composition is a primer or filler. The composition is particularly preferred for use as coatings for car repairs, because it is easily sprayed and can be applied when the ambient temperature.

The composition of the coating is also applicable in the automotive industry for exterior finishing of large vehicles, such as trains and buses, and can also be used in aircraft.

The composition may be applied using conventional spray equipment is of the or high and/or low volume spray equipment low pressure with high quality finishes. Other methods of application are applying by roller, brush application, spraying, application by spray, dipping, electrostatic spraying or electrophoresis, and the sputtering is preferred. Temperature curing are preferably between 0 and 80°C. the Composition may be left for drying and curing at ambient temperature for from one to several days or a shorter time at elevated temperatures, for example at 20-60 min at 40-80°C.

The present invention is illustrated by, but is not limited to the following examples.

Examples.

Use the following components:

Epikote® 1001 - bisepoxy type bisphenol a (supplier - firm Shell), Mn=950.

Epikote® 828 - bisepoxy type bisphenol a (supplier - firm Shell), Mn=360.

Eponex® 1510 - hydrogenated bisepoxy type bisphenol a (supplier - firm Shell), Mn=450.

Jeffamine® M-1000 - simple palifermin (supplier - firm Texaco),/EA/19, Mn=1176).

Armeen® CD - C12-14-alkylamine (supplier - firm Akzo Nobel Chemicals), Mn=200.

The following abbreviations are used:

NTI - 4-isocyanatomethyl-1,8-octadienal.

MIBK - isobutyl ketone.

MEK - methyl ethyl ketone.

DEK - diethylketone.

DPTA - dipropylenetriamine.

DETA - Diethylenetriamine.

AEAE - 2-(2-amenitiesin)ethanol.

Srednekamennogo molecular weight Mn is predelay pressure chromatography size using polymethyl methacrylate as the standard.

Example 1.

Obtaining an aqueous polymer dispersion, which is derived amidofunctional epoxide.

A 2-liter flask equipped with stirrer, thermometer, reflux condenser and a funnel-dropper, downloads:

285 g of Epikote® 1001 (0.3 mol);

273 g of MIBK (methyl isobutyl ketone).

The mixture is heated at 80°until then, until you dissolve epoxide, and cooled to 60°C. Then, under the protective layer of nitrogen for 20 min add:

of 37.6 g of Jeffamine® M-1000 (to 0.032 mol);

33,6 g Armeen® CD (has 0.168 mol).

The reaction mixture is heated to 80°C and maintained at this temperature for 1 h Then the reaction mixture at 80°C for 30 min add:

53,4 g diketene DPTA and DEK (0.2 mol).

The reaction mixture was kept at 80°C for 2 h and at 100°C for 1 h Receive a 60% solution of polymer derived keteninformatisering epoxide in MIBK.

To the specified polymer solution was added at 80°C for 10 min:

12 g of acetic acid (0.2 mol).

Then 970 g of demineralized water is added over 4 hours at a temperature gradually decreasing to ambient temperature. Organic solvent (MIBK and DEK) is distilled off from the aqueous dispersion by gradual heating of the water dispersion to 95-98°With the flow of excess nitrogen. Get the water dispersion of the polymer A1, is what the student derived amidofunctional epoxide content of dry matter to 33.7 wt.%. Its composition and properties are shown in table 1.

Examples A2 To A7.

Obtaining aqueous dispersions of polymers derived amidofunctional epoxides.

In the same manner as described in example A1, receive various aqueous dispersions of polymers derived amidofunctional epoxides. The composition and properties of these polymers are shown in table 1.

-
Table 1
A1A2A3A4A5A6A7
The components of the polymer (mol)
Epikote® 10010,3--3,03,03,03,0
Epikote® 828-6,6-----
Eponex® 1510--5,8----
Octylamine-5,284,48--1,6-
Armeen® CDhas 0.168--1,61,51,68
Jeffamine® M-1000to 0.0320,320,320,40,50,40,32
Deletemin DPTA and DEK0,22,02,02,02,02,02,0
Acetic acid0,22,02,02,02,02,0-
Lactic acid------2,0
The properties of the aqueous polymer dispersion
The degree of neutrons. (%)50505050505050
Simple polyester (wt.%)9,89,89,812,114,712,49,8
Amine number (mg KOH/g)58,658,858,557,456,059,158,7
The contents of the su is th substance (wt.%) 33,730,632,534,43432,833,3
Particle size (nm)34896533294131
Viscosity (mPa.s)904302201007050100
pH8,78,78,48,98,98,88,8
Mn4730Not determined.Not determined.Not determined.Not determined.Not determined.Not determined.

Examples A8-A12.

Obtaining aqueous dispersions of polymers derived amidofunctional epoxide.

In the same manner as described in example A1, receive various aqueous dispersions of polymers derived amidofunctional epoxides. The composition and properties of these polymers are shown in table 2.

Table 2
A8A9A10A11A12
The components of the polymer (mol)
Epikote® 1001of 2.211,651,581,721,62
Epikote® 8282,321,552,241,462,18
AEAE1,401,01,31,01,3
Jeffamine® M-10000,340,20,220,180,2
Deletemin AEAE and MIBK4,203,03,33,03,3
Acetic acid2,11,51,651,51,65
The properties of the aqueous polymer dispersion
The degree of neutrons. (%)5050505050
Simple polyester (wt.%)108,48,47,57,6
Amine number (mg KOH/g)to 59.459,859,8to 59.659,8
The contents of dry substance (wt.%)33,532,833,732,734
Particle size (nm)9 22332536
Viscosity (mPa.s)807018070230
pH8,78,9999

Examples A13-A20.

Obtaining aqueous dispersions of polymers derived amidofunctional epoxides.

In the same manner as described in example A1, receive various aqueous dispersions of polymers derived amidofunctional epoxides. The composition and properties of these polymers are given in table 3.

Table 3
A13A14A15A16A17A18A19A20
The components of the polymer (mol)
Epikote® 10013,03,02,01,23,02,01,22,0
Epikote® 828--1,01,8-1,01,81,0
Armeen® CD1,68-- ----1,82
Octylamine-1,681,821,91,61,6751,73-
Jeffamine® M-10000,320,320,180,10,40,3250,270,18
Deletemin DETA and DEK2,02,02,02,02,02,02,02,0
Acetic acid2,02,02,02,02,02,02,02,0

A13A14A15A16A17A18A19A20
The properties of the aqueous polymer dispersion
The degree of neutrons. (%)505050505050 5050
Simple polyester (wt.%)10,010,37,2a 4.912,412,412,46,9
Amine number (mg KOH/g)to 59.661,576,493,659,172,687,173,3
The contents of dry substance (wt.%)of 31.43239,638,634,238,9to 38.334,2
Particle size (nm)4334332835241896
Viscosity (mPa.s)40303603008029024070
pH8,58,68,89,18,68,99,18,9
MnNot ODA.4980Not ODA.Not ODA.Not ODA.Not ODA.Not ODA.Not ODA.

Examples A21-A24.

Obtaining aqueous dispersions of polymers derived linefunction the social epoxides.

In the same manner as described in example A1, receive various aqueous dispersions of polymers derived amidofunctional epoxides. The composition and properties of these polymers are given in table 4.

Example A25.

Obtaining an aqueous polymer dispersion, which is derived amidofunctional epoxide.

A 2-liter flask equipped with stirrer, thermometer, reflux condenser and a funnel-dropper, downloads:

190 g of Epikote® 1001 (0.2 mol);

36 g of Epikote® 828 (0.1 mol);

226 g of MIBK.

The mixture is heated at 80°until then, until you dissolve epoxide, and cooled to 60°C. Then, under the protective layer of nitrogen in 20 min add:

23,5 g Jeffamine® M-1000 (0.02 mol);

36 g of Armeen® CD (0.18 mol).

The reaction mixture is heated to 80°C and maintained at this temperature for 1 h Then the reaction mixture at 80°C for 30 min add:

53,4 g diketene DETA and MIBK (0.2 mol).

The reaction mixture was kept at 80°C for 2 h and at 100°C for 1 h Receive a 60% solution of polymer derived keteninformatisering epoxide in MIBK.

To the specified polymer solution was added at 80°With:

7.2 g of acetic acid (0.12 mol);

72 g of demineralized water.

The release of amino groups in keteninformatisering polymer reaction specificative at 80° C for 1 h

Then the solution amidofunctional polymer poured into 800 g of demineralized water for 30 min under vigorous stirring. Then the organic solvent (MIBK) are removed from the water dispersion azeotropic distillation at 50-70°With under reduced pressure.

The composition and properties of polymer A25 are shown in table 4.

Table 4
A21A22A23A24A25
The components of the polymer (mol)
Epikote® 10012,02,02,02,02,0
Epikote® 8281,01,01,01,01,0

Acetic acid
A21A22A23A24A25
Jeffamine® M-10000,20,20,20,20,2
Armeen® CD1,81,81,81,81,8
Deletemin DETA and MIBK2,02,02,02,02,0
2,01,61,21,01,2
The properties of the aqueous polymer dispersion
The degree of neutrons. (%)5040302530
Simple polyester (wt.%)7,67,67,67,67,6
Amine number (mg KOH/g)72,772,772,772,772,7
The contents of dry substance (wt.%)of 37.83034,337,333,2
Particle size (nm)26376111953
Viscosity (mPa.s)31030140430220
pH8,68,78,999
Mn2840Not ODA.Not ODA.Not ODA.Not ODA.

Examples A26-A29.

Obtaining the aqueous dispersion of polymers derived amidofunctional epoxides.

In the same way as described in the example A1, get various aqueous dispersions of polymers derived amidofunctional epoxides. The composition and properties of these polymers are given in table 5.

Table 5
A26A27A28A29
The components of the polymer (mol)
Epikote® 828---4,5
Eponex® 15104.04.05.0-
Octylamine3.03.04.03.5
Deletemin DETA and MIBK2,02,02,02,0
Acetic acid1,21,01,23,0
The properties of the aqueous polymer dispersion
The degree of neutrons. (%)30253075
Amine number (mg KOH/g)93,693,675,594,8
The contents of dry substance (wt.%) 31,331,5a 38.534,8
Particle size (nm)678886246
Viscosity (mPa.s)700710540130
pH99,197,9
Mn2170Not ODA.Not ODA.Not ODA.

Examples A30-A31.

Obtaining the aqueous dispersion of polymers derived amidofunctional epoxides.

In the same manner as described in example A1, receive various aqueous dispersions of polymers derived amidofunctional epoxides. The composition and properties of these polymers are shown in table 6.

Table 6
A30A31
The components of the polymer (mol)
Epikote® 10012,02,0
Epikote® 82811
Armeen® CD1,81,8
Jeffamine® M-10000,20,2
Deletemin DETA and MIBK2,02,0
Propionic acid1,21,6
The properties of the aqueous polymer dispersion
The degree of neutrons. (%)3040
Simple polyester (wt.%)7,67,6
Amine number (mg KOH/g)72,872,8
The contents of dry substance (wt.%)26,932,9
Viscosity (mPa.s)550980
pH9,08,8

Example B1.

Getting acetoacetotoluidide connection.

The product of the interaction of 1 mol of glicerinstearat and 0.02 mol Jeffamine® M-1000 and 0.98 mol 3-aminopropanol-1 praeteritorum 3 mol tert-butylacetoacetate while removing by distillation 3 mol of tert-butanol.

Triacetonediamine the compound has an equivalent weight of acetoacetate 156 (359 mg KOH/g) and 5.0 wt.% simple polyester groups.

Example B2.

Getting acetoacetanilide connection.

Acetoacetanilide connection is produced by interaction of 1 mol NTI and 2.95 mol of N-(2-hydroxyethyl)acetoacetamide and 0.05 mol of methoxypolyethyleneglycol (Mn=750). Acetoacetanilide connection is azet the acetamide functionality 2,95, the equivalent weight of acetoacetamide 243 (230 mg KOH/g) and 5.2 wt.% simple polyester groups. Its dry matter content is 80% in water.

Acetoacetanilide connection B3.

Di-(1,1,1-trimethylolpropane)tetraacetate.

Functionality: 4, equivalent to the weight of acetoacetate: 146,5 (382 mg KOH/g).

Acetoacetanilide connection B4.

1,5-potentialcustomer. Functionality: 2 equivalent weight of acetoacetate: 136 (412 mg KOH/g).

Acetoacetanilide compound B5.

1,1,1-trimethylolpropane Lonzamon AATMP (supplier - firm Lonza AG). Functionality: 3 equivalent weight of acetoacetate: 128,7 (435 mg KOH/g).

Examples 1-30.

If not stated otherwise, the examples is as follows.

Aqueous dispersions derived from epoxide amidofunctional polymer And mixed with a compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups, with a ratio of amino groups to acetoacetate groups and/or acetoacetamide groups of 1:1.

A mixture of 200 microns at the core steel plates (Bonder 120) and leave for drying and curing at ambient temperature. The properties of coatings obtained are shown in tables 7-12.

The hardness of Perozo determined in accordance with IS1522 and expressed in seconds.

The resistance R is storytell and water is determined after 1 week of drying at room temperature. After soaking in gasoline and MEK for 1 min in water for 1 h, the plates evaluate on a scale from 1 to 10, where 10 is excellent, there are no changes in the properties of the film, 8 - good, 6 - sufficient, 4 insufficient, 2 - poor, 1 - very bad, and b - bulges.

The gelation time determined visually.

Table 7
ExampleTrackThe gelation timeThe hardness of PerozoResistance to water
24 hours1 week.
1.A9-B1<1 h2502544/5b
2.A9-B1 (pH 7*)>1 week1451364b
3.A10-B1 (PH 7*)>1 week1501474/5b
4.A11-B1±1 h2612115b
5.A11-B1 (PH 7*)>1 week160 1524/5
6.A12-B1 (pH 7*)>1 week1711604/5b
*acetic acid is added to the connection And to a pH of 7.

/tr>
Table 8
ExampleTrackThe gelation timeThe hardness of PerozoResistance after 2 weeks.
24 hours1 week.GasolineMEKWater
7.A13-B13 h 15233233106/77/8
8.A13-B1 (pH 7*)>1 week.1861711057
9.A14-B12 h 10259249106/77/8
10.A14-B1 (PH 7*)>1 week.2082001068
*phosphoric acid is added to the connection And to a pH of 7.
Table 9
ExampleTrackThe gelation timeThe hardness of PerozoResistance after 2 weeks.
24 hours1 week.GasolineMEKWater
11.A15-B1±1 h241275106/78/10
12.A15-B1 (pH 7*)>5 days1481991077/8
13.A16-B1±15 min25531110710
14.>5 days1692121077/8
15.A17-B11 h 05183212Not ODA.6/77/8
16.A18-B150 min201176Not ODA.6/77/8
17.A19-B140 min171151Not ODA.6/77/8
18.A20-B1>1 week.178197Not ODA.6/77/8
*acetic acid is added to the connection And to a pH of 7.
Table 10
ExampleTrackThe gelation timeSolid on PersonuResistance after 2 weeks.
24 hours1 week.MEKWater
Ȁ
19.A14-B345 min2323226/78
20.A14-B3*1 h 152192706/78/10
21.A14-B4>1 week.18722248
22.A14-B4*>1 week.11515247/8
23.A14-B5<1 h2403076/78/10
24.A14-B5*<2 hours2032576/77/8
*contains 5 wt.% dry matter of dimethyldiselenide as co-solvent.

Table 11
ExampleTrackTime heliopaths the I The hardness of PerozoResistance to water****
24 hours1 week.
25.A14-B4/B5*/**/***>24 h1861768
26.A14-B3/B4*/**/***>24 h1981878
*contains 5 wt.% dry matter of dimethyldiselenide as co-solvent.

**the molar ratio of 1:1 mixtures B4/B5 and B3/B4.

***the ratio of amine: acetoacetate = 1:0.75 in.

****after 24 h of drying.
Table 12
ExampleTrackThe gelation timeThe solid is ity on Personu Durability****
24 hours1 week.
27.A21-B5*/**>24 h2132196/76d
28.A22-B5*/**>24 h1942116/77/8
29.A23-B5*/**3 h 152102306/78
30.A24-B5*/**2 h 30206188610
*contains 5 wt.% dry matter of dimethyldiselenide as co-solvent.

**the ratio of amine: acetoacetate = 1:0.75 in.

***p is after 24 hours of drying.

Examples 31-39.

An aqueous polymer dispersion As derived amidofunctional epoxide, mixed with a compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups, with a ratio of amino groups to acetoacetate groups and/or acetoacetamide groups 1:0.75 in.

A mixture of 200 microns at the core steel plates (Bonder 120) and leave for drying and curing at ambient temperature. The properties of coatings obtained are shown in tables 13 and 14.

The hardness of Perozo determined in accordance with ISO1522 and expressed in seconds.

Resistance to solvent and water is determined after 24 h drying at room temperature. After soaking in MEK for 1 min in water for 1 h or 4 h plate evaluate on a scale from 1 to 10.

Table 13
ExampleTrackApplying after isnsp.The gelation timeThe hardness of PerozoResistance
24 hours1 week.MEKWater (4 h)
Ȋ
31.A30-B5*20 min-1981716/76/7
32.A30-B5*60 min2-20 h197166Not ODA.6
33.A31-B5*20 min-1831616/77/8
34.A31-B5*60 min>20 h185153Not ODA.6
*contains 10 wt.% dry matter of dimethyldiselenide as co-solvent.
Table 14
ExampleTrackApplying after isnsp.The gelation timeThe hardness of PerozoResistance
24 hours1 week.MEKWater (1 h)
35.A23-B5*20 min<16 h1981716/76/7
36.A23 B2*20 min-197166Not ODA.6
37.A23 B2*16 h>24 h1831616/77/8

ExampleTrackApplying after isnsp.The gelation timeThe hardness of PerozoResistance
38.A23 B2*/**20 min-185153Not ODA.6
39.A23 B2*/**16 h>24 h
*contains 10 wt.% dry matter of dimethyldiselenide as co-solvent.

**the molar ratio of NH2: acetacetate = 1:1.

Example 40 and comparative examples A-C.

On Esenia on the wood.

A mixture of compound A23 and connections B1 sprayed on the plate of pine wood with a dry thickness of about 60 μm and dried and utverjdayut for 16 h at 60°C.

For comparison, using three aqueous coating composition:

a) water acrylic latex physical drying Supercryl (supplier - firm Akzo Nobel),

b) water smeshivaemost acrylic dispersion Neocryl XK-14 (supplier - firm Zeneca),

c) the aqueous dispersion hydroxyquinoline complex polyester Adura 100 (supplier - firm Air Products), combined with Vestanat T1890 (supplier - firm Huls).

Define:

- resistance to ethanol after 1 and 6 h,

- resistance to acetone (after 2 min exposure) and

- the resistance (after 24 h exposure), measured on a scale from 1 to 5, where 0 is poor and 5 is excellent.

The same composition of the coatings sprayed on the plate of pine wood with a dry thickness of about 60 μm and utverjdayut for 30 min at 60°and for 16 h at room temperature. Determine the resistance to sticking. The results are shown in table 15.

Acetone
Table 15
ExampleTrackAdhesionResistance
Ethanol 1 h/6 hWater
40.A23 B153-4/34-55
AndSupercryl52/23-43
InNeocryl XK-1452/251
Adura 100/Vestanat T189015/432

Examples 41-47 and comparative example D.

Application as an adhesive.

Five non-pigmented coating compositions and two pigmented compositions based on mixtures of compounds a and b put on a piece of wood, on which pripressovyvajut another piece of wood. Glued surface is 6.25 cm2(2,5×2.5 cm).

After one week aging pieces of wood split, separating from each other. Destructive force is a measure of the adhesion strength.

Used analog is a two-component system based on hydroxypentanal acrylic latex and polyisocyanate cross-linking agent Synteko 1984 and 1993 (supplier - firm Akzo Nobel). The results are shown in table 16.

Table 16
ExampleTrackBreaking force (MPa)
41.A6-B16,5*

ExampleTrackBreaking force (MPa)
42.A15-B17,0*
43.A16-B5-nab.(PVC=25%)4,9*
44.A26-B56,8*
45.A26-B5-nab.(PVC=25%)6,5*
46.A27-B57,3*
47.A29-B28,0*
DComparison5,5*
*the destruction of the wood.

Example 48.

The composition of the primer coating.

Component 1 is produced by mixing:

86,07 g A25;

of 2.26 g of 20% acetic acid in water;

28,30 g traditional fillers;

29,31 g traditional pigments;

4,08 g traditional additives.

Component 2 is obtained by mixing:

of 3.77 g B5;

7.51 g of traditional solvents.

The composition of the primer coating is obtained by mixing component 1 and component 2 and bringing the whole composition to the viscosity, ready-to-spray, 24 (DINC 4) adding 36 g of demineralized water. The composition of the coating sprayed on the steel plate and dried at room temperature. After 4 h of drying, the grindability is very good. After 24 h drying adhesion to steel is very good. Other properties are given in table 17. Resistance to solvent and water resistance was determined after 24 h of drying.

Table 17
ExampleTrackThe hardness of PerozoResistance
24 hours1 week.GasolineMEKWater
48A25-B58597106/77

After applying the black top cover Autocryl LV (supplier - firm Akzo Nobel) was established visually, that exposure of enamel is very good, a gloss, specified according to ISO 2813 exceeds 80 GU at 20°and immersion in water after 1 week does not swelling.

Table 18
TrackThe hardness of Perozo Resistance after 1 week
1 day1 weekGasolineMEKWater
49A1-B1*>120>1509-105-87-8
EA1-acryloyl**>120111-1307-85-85-6
50A4-B1*>120111-1309-105-65-6
FA4-acryloyl**81-10080-1107-83-43-4
51A5-B1*101-12080-1109-105-85-6
GA5-acryloyl**60-8080-1107-85-63-4
• *contains 5 wt.% calculated on dry substance of dimethyldiselenide as a co-solvent

• **contains 12.5 wt.% calculated on dry substance dimethyldi is propilenglikola as a co-solvent

1. Aqueous two-component schivas composition for coating or adhesive containing:

A) an aqueous dispersion of at least partially neutralized polymer derived amidofunctional epoxide and

B) an organic compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups.

2. The composition according to claim 1, characterized in that the polymer derived amidofunctional epoxide derived from:

a) at least one biaoxing connection

b) at least one amidofunctional compounds containing at least one primary amino group chosen from:

1) of the alkylamine with 2-20 carbon atoms in the alkyl group,

2) simple polyetheramine with Mn=500-3000,

3) N-acylaminoalkyl and/or

4) N-hydroxylaminopurine and

C) at least one compound containing at least one-NH-group and at least one ketimines group.

3. The composition according to claim 2, characterized in that amidofunctional compound (b) contains a simple palifermin with Mn=500-3000 (b2).

4. The composition according to claim 3, characterized in that amidofunctional compound (b) further comprises alkylamine with 2-20 carbon and the ohms in the alkyl group (b1) or N-hydroxyethylaminomethyl (b4).

5. Composition according to one of claims 1 to 4, characterized in that 10-100% of the amino groups of the polymer, which is derived amidofunctional epoxide, are neutralized volatile organic acid.

6. The composition according to claim 5, characterized in that the volatile organic acid selected from formic acid, acetic acid, lactic acid and propionic acid, possibly in combination with sulfuric acid, hydrochloric acid and phosphoric acid.

7. Composition according to one of claims 1 to 6, characterized in that the polymer derived amidofunctional epoxy resin has an average molecular weight Mn=500-10000, amine number of between 20 and 500 mg KOH/g and possibly up to 20 wt.% simple polyetheramine.

8. Composition according to any one of the preceding paragraphs, characterized in that a compound containing at least two acetoacetate group, or acetoacetamide group, or a combination of the two groups () is trimethylolpropane.

9. Composition according to one of claims 1 to 8, used as a composition for a covering.

10. Composition according to one of claims 1 to 8, is used as the adhesive.



 

Same patents:

FIELD: rubber industry.

SUBSTANCE: invention relates to methods for glue-assisted attaching rubber plates to metallic surfaces, including curvilinear ones, and can be used in ship building, mechanical engineering, construction, and chemical engineering. Task of the present invention resides in improvement of coating quality, increase in plate attachment strength, and increased reliability of sealing of gaps between plates. For that, prior to applying glue composition, metallic surface is mechanically treated and mounting surface of rubber plates and their ends are chemically modified.

EFFECT: reduced laboriousness of operation and increased adhesion strength with sealed gaps between rubber plates.

Polymer composition // 2277567

FIELD: polymer materials.

SUBSTANCE: polymer composition for varnishes, adhesives, and coatings is constituted by, weight parts: epoxide dian resin ED-2, 100; maleic anhydride as hardener, 40-80; oil slime as modifier, 10-30; and aniline bottom waste with aniline content 15-18 wt parts, 1-3. Oil slime is composed of hydrocarbon fractions with boiling temperature from 293 to 470°C.

EFFECT: reduced water content and curing time of polymer composition.

1 tbl, 6 ex

Gluing composition // 2275405

FIELD: glues compositions and materials.

SUBSTANCE: invention proposes gluing composition comprising the following ratio of components, mas. p. p.: epoxy diane resin, 30-40; monofunctional oligoester epoxide, 8-10; trifunctional oligoester epoxide, 8-10; tricyclocarbonate polyoxypropylenetriol, 12-15; low-molecular polyamide resin, 18-20, hardening agent of amine type, 7-10, and filing agent, 10-15. Invention provides enhancing relative stretching elongation value of the composition in retention of its high strength and adhesion indices. Invention can be used in gluing heterogeneous materials with different expanding temperature coefficients in units subjecting to high vibration and impact loads and effect of temperature from -150°C to 200°C.

EFFECT: improved and valuable properties of composition.

6 ex

Glue composition // 2271377

FIELD: adhesives.

SUBSTANCE: invention relates to compositions based of synthetic high-molecular weight compounds and, in particular, to composition comprising polyurethane-based preparation DESMOCOLL, perchlorovinyl resin, epoxide resin, aliphatic-series polyamine, and polar organic solvent.

EFFECT: enabled retention of high elasticity of glue joint and considerably increased gluing strength for siloxane-coated materials, kapron fabrics, and glass cloth.

1 tbl

FIELD: glue materials.

SUBSTANCE: invention relates to a method for preparing glue epoxide composition based on modified epoxy resin with a hardening agent of amine type. The composition comprises the following ratio of components, mas. p. p.: modified epoxy resin, 90-110, and hardening agent, 60-75. As modified epoxy resin epoxy organosilicon resin in furylglycidyl ester - SEDM-3P is used, and adduct of butyl methacrylate with diethylenetriamine - DTB-2 is used as a hardening agent. Invention provides the development of the composition showing stability against multiple impacts and to enhance heat-transferring capacity in the range of cryogenic temperatures. Proposed composition can work at cryogenic temperature and can be used in making optical-electronic devices, among them, cooled photodetectors under conditions of multiple thermal impacts.

EFFECT: improved and valuable properties of composition.

2 tbl, 6 ex

FIELD: glue compositions.

SUBSTANCE: invention relates to high strength heat-stable cold hardening glue compositions and can be used in articles of aircraft equipment and in other branches of industry. The composition comprises epoxide base and oligoamide-base hardening agent, mixture of epoxy resins as epoxide base, and oligoamide as a hardening agent representing product of polycondensation of dimerized methyl esters of higher unsaturated dicarboxylic acids of electrochemical synthesis and polyethylene polyamine or its mixture with [4,4'-(N,N'-bismaleimide)]diphenylmethane or with oligoimide, and additionally it comprises an elastifying additive - low molecular copolymer of butadiene and acrylic acid nitrile with terminal chlorobenzyl groups or chlorine-containing reaction resin and catalyst. Invention provides enhancing strength of glue joints in temperature shifts below 300°C, enhanced water resistance and tropic resistance and able to work at temperature 300°C for 50 h.

EFFECT: improved and valuable properties of composition.

3 cl, 2 tbl, 1 ex

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for preparing the epoxy resins hardening agent. Method for preparing a hardening agent involves process for interaction of amine of the general formula (A): wherein a = 2-10; n = 1-6 with acrylic or alkylacrylic acid ester of the general formula (B): wherein R1 means hydrogen atom or alkyl radical; R2 means alkyl radical in the presence of catalyst. Catalyst represents aromatic, aliphatic or heterocyclic compound comprising tertiary or tertiary and secondary nitrogen atoms (C) simultaneously as a solution in the concentration from 10% to 90% in an organic solvent. The ratio of components (A):(B):(C) is from 80:19.7:0.3 to 30:65:5, respectively. The process is carried out at temperature from 30°C to 80°C for 10-60 min. The prepared aminoester (D) is kept at temperature from +10°C to +30°C for 6-15 days, and then acrylic or methacrylic acid (E) is added in the ratio = D:E from 99:1 to 92:8 to aminoester and the mixture is stirred at temperature from 30°C to 70°C for 5-65 min. Invention provides preparing a hardening agent stable in prolonged storage, without sharp odor and providing the enhanced strengthening indices and resistance against climatic effects. Invention can be used in preparing epoxy compounds, binding agents in preparing plastics, anti-corrosive and decorative coatings.

EFFECT: improved preparing method.

2 tbl, 8 ex

FIELD: polymers, in particular cold cured structural adhesives for metal and non-metal materials useful in airframes and machine-building industry.

SUBSTANCE: claimed composition contains epoxy dianic resin, polyamide resin and organosilicone amine and additionally it contains chlorine-containing resin with chlorine content of 2.5-22.0 mass % and aliphatic di- or polyamine. Claimed composition retains elasticity up to 150°C.

EFFECT: adhesive with excellent cohesive resistance, increased water and tropical resistance.

7 cl, 3 tbl, 1 ex

FIELD: production of binders for prepregs for making heavily-loaded articles used in aeronautical engineering and intended for operation under high humidity conditions (tropics, marine climate); automobile manufacture; shipbuilding and other industries.

SUBSTANCE: proposed binder for prepreg contains the following components, parts by mass: epoxy triphenol resin, 40-60;low-molecular epoxy diane resin, 25-35; high-molecular epoxy diane resin, 3-6; dicyanodiamide, 5.5-7.0 and bis-(N,N'-dimethyl carbamide) of diphenyl methane, 0.05-2.0; solvent, 0-90; silicon dioxide, 1-6. Prepreg contains also 30-42 mass-% of epoxy binder and 58-70 mass-% of fibrous filler. Articles are made from prepreg by molding.

EFFECT: increased gelatinization time; improved quality of prepreg; enhanced strength characteristics.

3 tbl, 6 ex

Gluing composition // 2261885

FIELD: glues.

SUBSTANCE: invention relates to high-strength glues of cold hardening able to harden in the range of temperatures 10-15°C under conditions of enhanced moisture and on wetted surfaces. Invention proposes a glue composition comprising the following components, mas. p. p.: epoxydiane resin, 100; polyamide resin (product of condensation of polyethylene polyamine with higher unsaturated synthetic dicarboxylic acid methyl esters), 14-16; organosilicon amine, 1.15-1.30, and, additionally, chlorine-containing resin, 14-30; amine hardening agent, 8-22, and catalyst, 0.5-1.6. For improving the technological effectiveness the composition can comprise additionally mineral filling agent (titanium dioxide, asbestos or synthetic corundum) in the amount 5-20 mas. p. p. Prepared gluing composition can be used for repair work of glued constructions, articles and aviation technique aggregates in field conditions, and for gluing metallic and nonmetallic materials and aviation and other branches of machine engineering. Invention provides enhancing strength in shift, exfoliation and break off, enhanced water proofing, in tropic climate, possibility for hardening and retaining strength properties after hardening in the range of temperature 10-15°C under conditions of enhanced moisture and on wetted surfaces.

EFFECT: improved properties of gluing composition.

8 cl, 4 tbl, 1 ex

FIELD: production of paint-vehicle composition of cold and hot drying.

SUBSTANCE: claimed composition contains 44 % acryl polymer in solvent as film forming agent; 40 % acryl latex as thickener; 25 % ammonia aqueous solution as medium pH adjusting agent; solution of isothiasoline derivatives such as 1,2-hydroxy-5,8,11-trioxadodecane, 1,3-bis(hydroxymethyl)-urea, 1,6-hydrohy-2,5-dioxyxexane as conserving agent; emulsion of ether and siloxane copolymer in fumigated silica as antifoaming agent; water as solvent; and additionally ethanol in specific component ratio. Obtainer film has impact strength of 60-63 cm and desiccation time at (20±2)°C is 3-5 min and at (60±5)°C is 13-15 s.

EFFECT: composition for film formation having improved impact strength.

2 tbl, 10 ex

FIELD: beverage industry.

SUBSTANCE: invention relates to production of water-dilutable composition used, in particular, for protecting inside surfaces of aluminum cans for beer, soda and soda-free low-alcohol and soft drinks. Composition contains, wt %: epoxide oligomer with molecular mass 2000-10000 - 5,7-9,0, unsaturated monomers 10.0-22.0, benzoyl peroxide 1.2-3.2, organic solvents 9.0-14.5, neutralization agents 1.4-5.0, distilled water 46.5-69.9, epoxide oligomer with molecular mass 200-500, and, as curing agent, water-dilutable melamine-formaldehyde oligomer 0.5-1.2, said unsaturated monomers being selected from methacrylic acid, methyl methacrylate, styrene, and ethyl acrylate.

EFFECT: increased continuity of coating and resistance to hydrolysis on storage, which assures preservation of sedimentation stability and invariability of dispersion composition over at least two years.

1 tbl, 5 ex

FIELD: protective articles.

SUBSTANCE: invention relates to producing agents for human individual protection against effect of corrosive media, in particular, the protective cover for mittens and gloves. The composite comprises butadiene nitrile carboxylate latex, 50% aqueous dispersion of vulcanizing group stabilized with disperser, 25% aqueous dispersion of technical conducting carbon stabilized with disperser and a thickening agent. Invention provides preparing article showing anti-static properties, enhanced stability against petroleum, gasoline and aromatic solvents.

EFFECT: improved preparing method with antistatic properties and enhanced stability to oil, gasoline and aromatic solvents.

2 cl, 9 tbl

FIELD: composition for coating of gauntlets and gloves used in chemical, oil and oil processing industries.

SUBSTANCE: claimed composition contains mixture of butadienenitrile carboxylate latex and butadienevinylidenechloride latex in mass ratio from 75:25 to 97:3; 50 % aqueous dispersion of curing sulfur-containing group; zinc oxide and zinc salt of dialkyldithiocarbamine acid, stabilized with dispersant; 25 % aqueous dispersion of carbon black, stabilized with dispersant.

EFFECT: protective coating of decreased cost and improved resistance to gasoline and aromatic hydrocarbons affects.

4 tbl, 1 dwg

FIELD: binding agents.

SUBSTANCE: invention describes a binding agent based on an aqueous basis consisting of: (a) acrylic copolymer an aqueous dispersion comprising functional groups of carboxylic acid and ethyleneurea with average molecular mass below 200000Da and value Tglass < -15°C. This acrylic copolymer can be prepared from acrylic and/or methacrylic acid alkyl and/or cycloalkyl ester with ethylene unsaturated group or its anhydride, compound with ethylene unsaturated group comprising functional groups ethyleneurea of the formula: , and optionally vinyl monomers and/or halides, or nitriles with olefin unsaturated group, and (b) water-soluble complex of transient metal wherein transient metal is represented by zinc and wherein the ratio of transient metal mole number in the complex to the total mole number of carboxyl groups in copolymer is from 1:1 to 1:8 but preferably from 1:2 to 1:4. Also, invention describes a covering composite prepared from the described composition of binding agent and wood as a basis covered by a covering composite. Proposed covering composite and coatings with this composition of a binding agent possess the excellent strength and good flexibility. These coatings show the property for prevention of tannins migration from the tannin-containing wood basis.

EFFECT: improved and valuable properties of composition.

9 cl, 11 ex

FIELD: varnish-and-paint industry.

SUBSTANCE: field of invention is water-dispersed paints based on acrylic latexes. Invention provides a water-dispersed paint containing, as film-forming substance, styrene/acrylic acid asters copolymer or styrene/acrylic acid copolymer, titanium dioxide and colored pigments, chalk or talc, polyoxyethylated alkylphenol ether, thickening agent: rarely cross-linked copolymer of butyl acrylate, methacrylic acid, and styrene or methylolacrylamide, sodium polyphosphate as dispersant, foam suppressor, preservative, 25% ammonia aqueous solution, ethylene glycol as antifreeze, water, and additionally: butyldiglycol acetate (coalescent), optical bleacher, light stabilizer, and light sensitizer, all components at specified proportions.

EFFECT: enhanced atmosphere resistance, light resistance, and stability of coloristic characteristics.

5 cl, 2 tbl

FIELD: building materials.

SUBSTANCE: invention relates to a method for preparing an aqueous epoxide corrosion-stable priming used for protection against corrosion and no containing hexavalent chrome compounds. Priming comprises aqueous epoxide compound based on bisphenol A diglycidyl ester, hardening agent and chromate-free pigment inhibiting corrosion. Hardening agent is taken among the group comprising aqueous modified adducts of amines or polyamidoamines decreasing the water content. Chromate-free pigment inhibiting corrosion comprises chromate-free pigment additive inhibiting corrosion that is taken among the group comprising mixtures of cerium molybdate with bismuth vanadate, cerium molybdate with strontium tungstate, cerium phosphate with strontium tungstate, bismuth vanadate with bismuth molybdate and strontium tungstate, and their mixtures also. Pigment-filling agents and hydrophobic hardening agent are added to the priming composite for enhancing waterproofness and corrosion resistance. Invention provides excluding the negative effect of hexavalent chrome on environment objects and human body.

EFFECT: improved and valuable properties of priming.

4 ex

FIELD: polymer materials and protective coatings.

SUBSTANCE: invention relates to primer materials, including water-dispersed paints, and is used to form protective-decorative coating of porous surfaces, e.g. various-destination indoor and outdoor brick, concrete, plaster, and similar surfaces. Method comprises preparation of components A and B. The former is water-based suspension of zinc oxide or titanium oxide, talc, powdered cellulose and Sulfosid-61 at ratio 2:1.1:0.04:0.04:0.08, respectively, which is prepared in disperser for 15 min at 18-25°C. The latter component (B) is water-based emulsion containing plasticizer (dibutyl phthalate or Edos), sodium carboxymethylcellulose, liquid sodium glass, and Sulfosid-61 at ratio 6:1.4:1:0.6, which is prepared in planetary mill for 15 min and 18-25°C. Components A and B are then mixed, whereupon latex (SKS-65GP) is added for 20 min at 18-25°C to form composition containing, wt parts: latex 100, component A 85-95, component B 7-8, and water 102-115. Advantages of invention comprise simplification of water-dispersed paint production process, reduced process time due to independent and simultaneous preparation of the two composition components, which are mixed with latex without foaming and stratification.

EFFECT: increased homogeneity of composition and improved spreading capacity, water and frost resistance of coating.

1 tbl

FIELD: varnish-and-paint industry.

SUBSTANCE: invention relates to lacquer materials for primer coating as well as independent coating. Water-dispersed lacquer composition includes acrylate-containing dispersion, pigments, including structure chromate and zinc phosphate at ratio 1:(10-50), polyurethane and cellulose and/or acrylic thickener, surfactant, coalescent additive, corrosion inhibitor, water, and fluorine-containing flow property-enhancing additive. Composition may further contain neutralizer, form suppressor, and antifreeze.

EFFECT: increased adhesion for aluminum and water resistance, speeded up drying under environmental conditions.

4 cl, 2 tbl, 7 ex

FIELD: temporary layout and differentiation of controlling distances on playgrounds and fields suitable for sport.

SUBSTANCE: foaming aqueous composition containing at least one non-ionic surfactant or amphoteric surfactant as foaming agent, and at least one amphoteric surfactant as foam control agent, is sprayed on playground or field. Said non-ionic surfactant represents ethoxylated vegetable oils; amphoteric surfactant as foaming agent represents alkyldimethylamine oxide; and amphoteric surfactant as foam control agent represents betaines in combination with at least one propellant. Composition of present invention is useful in layout and differentiation of controlling distances on playgrounds and fields, in particular football fields.

EFFECT: method with improved effectiveness.

19 cl, 3 ex

Epoxide composition // 2280053

FIELD: coating compositions.

SUBSTANCE: invention relates to a method for preparing composition used for paint and varnish coatings. The composition comprises the components taken in the following ratio, mas. p. p.: epoxy diane oligomer, 50; amine hardening agent, 5.9-11; xylene, 25; butyl acetate, 10; acetone, 15; polyfluorinated alcohol-telomer of the formula: H(CF2CF2)nCH2OH wherein n = 3, 10-15. Low-molecular epoxy diane oligomer of molecular mass 400 Da, not above, and with epoxide number 21-22% is used as epoxy diane oligomer. Invention provides enhancing adhesion, hardness, impact resistance and diminishing water absorption of coatings. Proposed composition can be used in making pouring floors, pouring compounds and for other aims.

EFFECT: improved and valuable properties of composition.

2 tbl, 14 ex

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