Epoxide composition

FIELD: polymer materials.

SUBSTANCE: invention relates to production of epoxide composition used for protection and decorative coatings of metallic structures and wall panels with elevated resistance to sun emission as well as manufacturing poured floors, pouring compounds, and other purposes. Composition contains, wt parts: resin fraction 100, curing agent 30-70, siloxane resin (foam suppressor) 1-10, modified phenol-formaldehyde resin, colorant (pigment) 1-30, modifier 3-20, and filler 10-200. Resin fraction is a mixture of epoxide dian resin and aliphatic epoxide resin, which are taken at ratio between 60:40 and 95:5. Curing agent utilized is amine derivative obtained by reaction of amines of general formula H2N-(CaH2a-NH-)n (A), wherein a = 2-10 and n =1-6, with acrylic or alkylacrylic acid esters having general formula: CH2=CR1-COR2=O (B), wherein R1 represents hydrogen or alkyl radical and R2 alkyl radical, in presence of catalyst at 30 to 80°C for 10-60 min. Catalyst is aromatic, aliphatic, or heterocyclic compound containing tertiary or simultaneously tertiary and secondary nitrogen atoms (C) in the form of 10-90% solution in organic solvent. Ratio of components A:B:C varies between 80:19,7:0.3 and 30:65:5. Resulting aminoester is kept for 6 to 15 days at temperature 10 to 30°C and then is mixed with added acrylic or methacrylic acid at ratio from 99:1 to 92.8:8 and mixture is then stirred for 5 to 65 min at 30-70°C. Aforesaid modifier is depicted by formula R3-(CH2)m-OH, in which R represents alkyl or aryl and m=1-9, or modifier is ethylcellosolve or phenylcellosolve.

EFFECT: increased resistance to ultraviolet emissions and climatic effects under conditions of considerable variations in yearly temperatures and atmospheric precipitates.

4 tbl, 11 ex

 

The invention relates to epoxy compositions of cold hardening and can be used for protective and decorative coatings of metal structures and wall panels with high resistance to the effects of solar radiation, as well as for the manufacture of flooring, caulking compounds and other purposes.

Known epoxy composition containing as a hardener product of the interaction of amines with acrylates (see U.S. patent No. 3247163 from 19.04.1966 year). The disadvantage of this composition is a sharp odor, poor resistance to climatic influences, especially in the Far North, as well as the presence of defects (pores, craters, etc. in the finished coating.

The closest prototype of the proposed technical solution is the composition (patent of Russian Federation № 2186801 from 05.01.2001 g) from a mixture of epoxy resins and hardeners containing antifoam, urea resin, a colorant and a filler.

Despite many advantages, providing a wide application in hundreds of enterprises, the composition has insufficient resistance to climatic influences, especially in terms of variation of annual temperatures from -60°C to +35°and changes the shade under the influence of sunlight.

The aim of the present invention is a composition which I providing materials with high resistance to UV and climate vozdeistviyam in conditions of significant fluctuations in annual temperatures and precipitation.

This goal is achieved in that the composition consisting of a mixture of epoxy Dianov and aliphatic resins, curing agent, antifoam - siloxane resin-modified urea resin, colorant (pigment and filler, as a hardener contains the product of the interaction of amines of General formula:

where and from 2 to 10 and n is from 1 to 6, with esters of acrylic or alkylacrylate acid of General formula:

where R1is hydrogen or alkyl radical, a R2is an alkyl radical

in the presence of a catalyst comprising an aromatic, aliphatic or heterocyclic compound containing tertiary or both tertiary and secondary nitrogen atoms (C) in the form of a solution from 10% to 90% concentration in an organic solvent in a ratio of components a:B:80:19,7:0.3 to 30:65:5 at a temperature of from 30 to 80°C for from 10 to 60 min, followed by exposure of aminoether (G) within 6 to 15 days at a temperature of from +10 to +30°C, followed by addition of acrylic or methacrylic acid (E) in the ratio G:L 99: 92:8 with stirring for from 5 to 65 min, at a temperature of from 30 to 70°and, optionally, a modifier of the General formula R3-(CH2)mIs HE, where R3is alkyl or aryl, a m from 1 to 9, or ethyl cellosolve, or funeralopolis, the composition comprises, in parts by weight:

The resin part100
The hardener30÷70
Antifoam - siloxane resin1÷8
Modified urea-formaldehyde resin1÷10
Dye-pigment1÷30
Modifier3÷20
Filler10÷200

A composition is illustrated by examples.

Getting hardener

Example 1.

In a reactor equipped with heating, cooling and stirring, load of 2.5 parts by weight of ethyl acetate and 2.5 parts by weight of the catalyst - methylimidazole (I), then stirred at 20°C to obtain a solution (50% concentration). After that, sequentially poured of 57.5 parts by weight of Diethylenetriamine (a) and 40 parts by weight of butyl methacrylate (B). The ratio of a:B:In charge of 57.5:40:2,5. The mixture is stirred for 35 min at 55°C. thus Obtained aminoether (G) stand for 10 days at 20°in glass containers. After exposure to 95 parts by weight of aminoether drain the t again into the reactor and add to it methacrylic acid (E) in an amount of 5 parts by weight, i.e. G:Y=95:5, and stirred for 35 min at 50°C. Ready hardener stariway in metal drums.

Example 2÷6 perform similarly, but use components and parameters in accordance with table 1. The properties of the curing agents of examples 1÷6 in comparison with the prototype are shown in table 2. These tables show substantial advantages hardeners obtained by the present method.

Table 1.

Conditions of the method of obtaining the hardener according to examples 2÷6
No.Name of indicatorValue
23456
1.Applied Amin (A)The EthylenediamineTetraethylenepentamineThe polyethylenepolyamineTriethylenetetramine1,10-diaminodecane
2.Used ether (B)ButylmethacrylateThe acrylateOligomeric copolymer of butyl methacrylate and methyl acrylateButylmethacrylateButylmethacrylate
3.Used catalyst TriethanolamineTris-(dimethylaminomethyl)phenolParaaminobenzoicTriethanolaminatodimethylaniline
4.Ratio80:19,7:0,357,5:40:2,557,5:40:2,557,5:40:2,530:40:2,5
5.Used solvent and concentration of the catalyst (In)10% solution in xylene90% solution in ethyl cellosolve50% solution in ethanol50% solution in benzyl alcohol50% solution in a mixture of toluene, ethyl acetate, propyl alcohol 1:1:1
6.The temperature and time of receipt of aminoether (G)60 min at 30°10 min at 80°35 min at 55°
7.The temperature and time of aminoether (G)15 days at 10°6 days at 30°10 days at 20°
8.The ratio of aminoether (G) and the appearance of acrylic or methacrylic acid (D) D:D99:1 acrylic acid92:8 methacrylic acid95:5 methacrylic acid
9.Temperature and time displaced the air traffic management G:D 65 min at 30°5 min at 70°35 min at 50°

Table 2.

The properties of the curing agents obtained in examples 1÷6,
No.Name of indicatorValue examples
12345
1.AppearanceThe movable liquid light brown
2.The viscosity at 25°, B3-4, max3030303030
3.Allowable storage time at 20°s, day, not less than365365365365365
4.Gelling time at 25°C, min.120130120130135
5.The minimum temperature curing, °-30-300

A composition.

In the reactor pour 100 mass parts of the epoxy mixture is Dianova resin brand ED-20 and aliphatic resin deg-1 in the ratio of 77:33, then enter to 4.5 parts by weight of antifoam - siloxane resin brand DCK-1100 (polymethylsiloxane resin), 5,5 moschata butanediamine urea resin, 12,5 moschata modifier-isopropyl alcohol, 5.5 wt. parts of a mixture of dye phthalocyaninato green with titanium dioxide in a ratio of 1:4 and 105 mass parts of filler - maralita. The mixture of all components is stirred for 10 minutes at 60°C, then poured into the vessel in the amount of 220,5 parts..

In another vessel, pour 50 parts hardener and in such proportions are sent to the consumer. Mixing of the resin portion containing the above additives, curing is carried out directly before use. Set the resin and hardener can be stored in the warehouse for at least one year.

Examples 2÷9 carried out analogously to example 1. Conditions of preparation of the hardener are shown in table 1. The ratio of the components of the inventive examples 2÷9 compositions shown in table 3. The properties of the composition are shown in table 4.

As can be seen from table 4, the inventive composition practically does not lose its properties after exposure to extreme climatic conditions (guringai, Western Siberia at that time, as properties of the composition of the prototype deteriorate almost 30-40%.

/p>

Table 4.

Properties of the claimed compositions of examples 1-11.
No.Name of indicatorThe value of the indicator for examples.
1234567891011The placeholder
1.The retention time of the composition (resin and hardener separately)At least 1 yearNot less than one year
2.Toxicity and volatilityMinimalMinimal
3.The minimum temperature curing, °-10°-12°-10°-11°-10°-10°-10°-10°-10°-10°-10°-10°
4.Color change after 1 year of exposureUnchanged1-2 shades darker than the original
5.Limit durable the STI when (source) compression kg/cm2136013001350140013001320134014001390132013401250÷1380
6.So after years of exposure13101320134013801310130013201380140013801310870÷900
7.The ultimate strength in static bending strength (kg) (cm2) (source)132013701290128013401350121013101370134013501115÷1340
8.So after years of exposure13001320126012901310136012201300136013101360800÷850
9.Specific impact strength (source)kg·cmcm246444544454346474445 4336÷42
10.So after years of exposure424143424444434645444418÷22
Exposure was carried out on the roof of the building in guringai (annual fluctuations in temperature from -60°C to +35°C.

Epoxy resin composition for coating comprising as a resin part of a mixture of epoxy and aliphatic resins in a ratio of from 60:40 to 95:5, hardener - derived amines, antifoam - siloxane resin, a modified urea-formaldehyde resin, a colorant (pigment) and a filler, characterized in that as a hardener it contains the product of the interaction of amines of General formula

where and from 2 to 10 and n is from 1 to 6,

with esters of acrylic or alkylacrylate acid of General formula

where R1is hydrogen or alkyl radical, a R2is an alkyl radical in the presence of a catalyst comprising an aromatic, aliphatic or heterocyclic compound containing tertiary or both tertiary and secondary nitrogen atoms (C) in videostore from 10 to 90% concentration in an organic solvent in a ratio of components a:B:80:19,7:0.3 to 30:65:5, at a temperature of from 30 to 80°C for from 10 to 60 min, followed by exposure of the received aminoether (G) within 6 to 15 days at a temperature of from 10 to 30°and With the subsequent addition of acrylic or methacrylic acid (E) in the ratio of G:D from 99:1 to 92:8, and optionally a modifier of the General formula R3-(CH2)mIs HE, where R3is alkyl or aryl, and m is from 1 to 9, or ethyl cellosolve, or funeralopolis, the composition comprises, in parts by weight of

The resin part100
The hardener30÷70
Antifoam - siloxane resin1÷8
Modified urea-formaldehyde resin1÷10
The colorant (pigment)1÷30
Modifier3÷20
Filler10÷200



 

Same patents:

FIELD: composition for corrosion protection of basic constructional materials (steel, concrete).

SUBSTANCE: claimed composition contains (mass %): polymeric film-forming substance 40-52; natural fine-grain iron alpha-oxide 11-27; organosilicon curing agent 1`2-17; thiocol 7-10; synthetic silica 3-5; strontium chromate 7-9. Solution of epoxy resin in xylene and acetone is used as polymeric film-forming substance. Natural fine-grain iron alpha-oxide contains (mass %): silica, aluminum oxide, magnesium oxide, and calcium oxide not more than 2.5; 1.8, 0.2, and 0.3, respectively and Fe2O3 85-95 %. As organosilicon curing agent organosilicon amine derivatives are used.

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2 tbl, 6 ex

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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.

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27 cl, 51 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

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.

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1 tbl, 6 ex

FIELD: building materials.

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4 ex

FIELD: polymeric materials.

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EFFECT: improved and valuable properties of material.

2 tbl, 13 ex

FIELD: polymeric materials.

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EFFECT: improved and valuable properties of material.

2 tbl, 13 ex

FIELD: organic chemistry, chemical technology.

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EFFECT: improved preparing method.

2 tbl, 8 ex

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2 tbl, 7 ex

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EFFECT: improved and valuable properties of composition.

6 cl, 2 tbl, 13 ex

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EFFECT: composition with high adhesion to concrete and metal surface and improved strength.

2 tbl

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1 tbl

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: varnish-and-paint industry.

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EFFECT: combined anticorrosive effect, high content of solids, and low viscosity.

12 cl, 1 dwg, 1 tbl, 4 ex

FIELD: building industry, in particular waterproofing composition.

SUBSTANCE: claimed composition contains (mass parts): epoxy dianic resin 100; polyethylene polyamine 5-10; oil sludge 10-30; still liquor from aniline production containing 15-80 mass parts of aniline 5-20. Mass ratio of polyethylene polyamine and said still liquor is 1:(0.5-4). Oil sludge contains hydrocarbon fractions with boiling point from 2930C to 4700C. Composition of present invention is useful as waterproofing material for plugging of corrugations and road cracks.

EFFECT: waterproofing composition of improved adhesion to concrete surface.

5 ex, 1 tbl

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EFFECT: reduced viscosity of compound, enhanced insulation and electric-strength properties, and simplified preparation procedure.

2 tbl, 17 ex

FIELD: building industry, in particular waterproofing composition useful as waterproofing material to seal corrugation and road crack.

SUBSTANCE: claimed contains (mass parts): epoxy dianic resin 100; polyethylene polyamine 5-1`0; oil residue 10-30; bottoms from aniline production comprising 15-80 mass parts of aniline 5-20; and gravel 300-600. Mass ratio of polyethylene polyamine and bottoms from aniline production is 1:(0.5-4). Oil residue consists from hydrocarbon cuts with boiling point from 2930C to 4700C.

EFFECT: waterproofing composition with increased adhesion to concrete surface.

5 ex, 1 tbl

FIELD: method for production of epoxypolymer solution useful sealing material in building industry.

SUBSTANCE: claimed epoxypolymer solution contains (mass parts): epoxydyanic resin 100; polyethylene polyamine 15; plasticizer 50; filler 200. Waste from epoxide resin production is used as plasticizer, and waste from haydite production is used as filler. Epoxypolymer solution of present invention is useful, for example as sealing and waterproofing material in rebuilding of damaged concrete and reinforced concrete constructions.

EFFECT: epoxypolymer solution with improved operating characteristics and reduced cost.

5 tbl, 8 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

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