Anticorrosion coating composition
SUBSTANCE: invention relates to protection and restoration of corroded metal surfaces working under abrasive wearing conditions, used in atmospheric conditions of different climatic zones, in the atmosphere of aggressive media, for example in power engineering, chemical and mining industry when repairing rusty equipment. The anticorrosion coating composition contains the following components in wt %: 21-35% modified alkyd filming agent, 1-2% rheological additive - surfactant based on TROYSOL fatty amine, 0.5-1% siccative, 4-12% filler, 5-10% zinc phosphate, 1-3% rust solvent based on tannins and tannin derivatives, specularite with high content of Fe2O3 and consisting of different fractions, 20-30% specularite of the first fraction with particle size not less than 63 mcm, 6-15% specularite of the second fraction with particle size not greater than 20 mcm, organic solvent - the rest.
EFFECT: proposed composition has good anticorrosion properties, abrasive wear resistance, high durability, is capable of dissolving rust without thorough preparation of the metal surface.
2 cl, 2 tbl, 7 ex
The invention relates to the protection and rehabilitation of corroded metal surfaces, operating in the conditions of abrasive wear, operated in atmospheric conditions in various climatic zones, in an atmosphere of corrosive media, for example, in the energy, chemical and mining industries in the repair of corroded equipment.
Known composition for coatings containing alkyd resin, red iron oxide pigment, drier, slag powder bleaches double separation of the composition, wt.%: CaO 49.5-54.8; SiO218.0-27.5; MgO 7.8-11.4; Al2About36.3-6.6; CR2O36.5-7.7; impurities and organic solvent else (patent RU No. 1381962, CL 09D 163/08, 5/12. Appl. 17.09.1985,, application No. 3970485/05. Publ. 30.11.94. Bull. No. 22).
However, this composition provides insufficient corrosion resistance, abrasion resistance, has a long drying time, low durability, requires careful preparation of metal surfaces prior to application of the composition. In addition, the composition used slag powder bleaches, which is produced from slag from the production silicothermic ferrochrome, silicocalcium, ferro-alloys, and alloys on its basis, through a technologically advanced process that creates the dependence of obtaining the companies from the specific production. This dependence can lead ktomu, when the improvement of the technological process of production silicothermic ferrochrome, silicocalcium, Ferroalloy waste slag will not meet the requirements of the said patent.
Known composition for anti-corrosion coatings containing alkyd-styrene resin or skinny alkyd resin, pigments (zinc phosphate, aluminum powder, red iron oxide pigment, carbon technical, tetrachromat zinc and others), fillers (micro-talc, mica, mikrobasic and others), tannin, such as THE 937327200281074-00 tannin or derivative, for example, Corridor and organic solvents. (Patent RU №2246512, CL 09D 5/08, 167/08. Appl. 07.05.2003,, application No. 2003113001/04. Publ. 20.02.2005. Bull. No. 5).
However, when this composition and percentage components of this composition provides insufficient corrosion resistance, abrasion resistance, has low durability, requires careful preparation of metal surfaces prior to application of the composition.
Closest to the present invention is a composition to obtain a corrosion-resistant coating comprising zinc powder superfine, desiccant, modified alkyd film based on the main part, modified Tung oil and phenol-formaldehyde resin, an organic solvent, antiegalitarian additive consisting of a mixture of zinc oxide, organohalogen bentonite and lecithin in the following ratio, wt.%:
|Specified modified alkyd|
|the foaming agent||10,0-15,0|
|Zinc powder superfine||55,0-65,0|
|Bentonite organophilic SD-1||0,3-0,8|
As specified modified alkyd agent use alkyd-phenolic resin AF-033 (TU 2311-025-54651722-2002) or alkyd-phenolic resin AMF H (TU LVUTN-40003245470) (patent RU №2304602, CL 09D 5/08, 167/08. Appl. 29.09.2006,, application No. 2006111678/04. Publ. 20.08.2007 bull. No. 23).
However, this composition also provides insufficient corrosion resistance, abrasion resistance, has low durability and a significant drying time, requires careful preparation of the metal surface before applying the compo is icii. In addition, the composition is included in a large number of expensive material powder zinc highly dispersed, which leads to a considerable rise in composition.
The technical result of the invention is to obtain a composition satisfying the following requirements:
- significant increase in anti-corrosion properties,
- increased abrasion resistance;
- high durability;
- slight drying time;
- low cost;
- ability to convert rust and does not require careful preparation metal surface.
This technical result is achieved by the fact that the known composition for anti-corrosion coatings, including the modified alkyd foaming agent, a rheological additive, a drier, an organic solvent, optionally contains a filler, zinc phosphate, rust Converter on the basis of tannins or derivatives of tannins, specularite, with a high content of Fe2O3and consisting of two fractions, the size of the particles of the first fraction is not less than 63 μm, the particle size of the second fraction is not more than 20 μm, in the following ratio, wt.%:
|Modified alkyd foaming agent||21-35|
|Specularite first fraction||20-30|
|Specularite second faction||6-15|
|The zinc phosphate||5-10|
|The rust Converter on the basis of tannins|
|and derivatives of tannins||1-3|
As a rheological additive can be used with the best of the surfactant based on fatty amine brand TROYSOL.
For the preparation of compositions for anti-corrosion coatings used:
As modified alkyd agent - any modified alkyd foaming agent, for example:
a) alkyd-phenolic resin grade AMF 30×60 (TU LVUTN-40003245470-10-02)company "Biolar" (Latvia), representing a solution thin varnish, a modified Tung oil and phenol-formaldehyde resin, containing 59-61% mass fraction of non-volatiles;
b) alkyd-phenolic resin grade AF-033 THE 2311-025-54651722-2002, representing a solution glyptal resin in xylene-modified rosin and phenolic resin containing 53±2% mass fraction of non-volatiles;
C) alkyd-urethane resin grade "Arundina Ophtal-55" TU 2311-030-72311668-2006, representing a solution pentaftalevyh resin in white spirit, modified fatty acids of tall oil and a diisocyanate containing 49±2% mass fraction of non-volatiles;
g) alkyd-styrene lacquer MS-25 (TU 6-10-1403-78), representing a solution in xylene or a mixture of xylene with turpentine alkyd resin, modified styrene and a mixture of drying or semidrying Tung oil.
As a rheological additive can be used, for example, surfactant based on fatty amine brand TROYSOL, TELAS-15 TO-061-27991970-04, the company "AutoConvert"representing aminoamide fatty acids in the solvent mass fraction of non-volatiles: 50%(±2). Preferably the use of imported rheological additive that goes under the trade name TROYSOL company "Troy" (USA), for example, TROYSOL 98C, representing a surfactant based on fatty amine. Additionally, there may be used other rheologies is their supplements for example, as in the prototype: organophilic bentonite SD-1, UK manufacturing, soy lecithin THAT 9146-203-00334534-97.
As the filler used, for example, the micro-talc, omyacarb, mikrobasic and others;
As a rust Converter using tannin and tannin derivatives, for example, Alkofer AC company Cognis (Germany) and others, preferably using the rust Converter running under the trade name "Korrodur" firm Schwegmann (Germany), representing a solution of the wetting substances containing tannin and tannin derivatives. As zinc phosphate is used, for example:
a) zinc phosphate on THE 2329-002-13938162-2004, LTD. "Êronakril":
b) zinc phosphate brand NS, firms NSA, Holland and others.
As specularite first fraction and specularite second fraction used any specularity, allocating or receiving necessary according to the invention, fraction, for example:
a) Altai Deposit Ore Log" containing oxides of silicon, aluminum, magnesium and calcium, respectively, not more than 2.5; 1,8; 0,2; 0,3%;
b) brand Miox company Kämtner Montanindustrie (Austria)containing Fe2O385-94%, Al2About3- 2-3%, MgO - 1-2%, Ca - 0,3%, SiO2- 3-6%, Pb<0.1%;
in grade Nubifer firm "Nubiola" (Spain)containing Fe2O389-94%, Al2About3to 1.9%, MgO Of 0.1%, Ca - 0,4%, SiO2- 4,2%, K2 O 0,2%.
As organic solvents used, for example, xylene, white spirit, butyl acetate, and others.
As of desiccant used, for example:
a) desiccant "rainbow"-3.1 on THE 2311-001-59344679-04 with a mass fraction of metals: Pb 13,0-17,0%, Zn 2.5-6.5%, With 0,8-1,2%;
b) desiccant brand LB-2, the company "Biolar", Latvia with a mass fraction of metals: Pb 15,0±0,3%, MP 0,9±0,1%, With 1,2±0,1%,;
C) desiccant brand Octagon 1,2,3 (With 0,5; 1,0 MP; Zn 2,0) THE 2311-001-79229214-2007 and others.
The essence of the invention lies in the fact that the proposed combination of components with the first fraction specularite with a particle size of not less than 63 microns gray, of lamellar structure, and together with the second fraction of secularity with a particle size of not more than 20 μm red-brown color as a percentage create a reliable barrier to the penetration of moisture and aggressive media to the metal surface. If the first fraction specularite in the proposed ratio of components, creates a protective barrier due to the lamellar structure, the second fraction specularity due to its fine structure additionally fills all the gaps between the plates of specularite second fraction, i.e. cement lamellar structure and prevents moisture or corrosive environments to get under the plate structure and get on the metal surface.
Chrome is also the second fraction specularity increases abrasion resistance of the composition and thereby increases the resistance to abrasion, and hence the durability of the coating.
The second fraction specularite simultaneously performs the role of a pigment, a coloring composition in bright brown-red color.
The compositions can well convert the rust is not only due to the introduction of rust Converter containing tannins and derivatives of tannins, which interact with rust, converting it into an inactive connection, but also through their interaction with Fe2O3specularite the first and second fractions. The optimal percentage of specularite the first and second fractions, together with rust Converter provides excellent adhesion of the composition to the metal surface. Tests were carried out in a salt fog chamber with impact on metal samples covered the claimed composition, corrosive environment containing sodium chloride and sulfur dioxide. The test was carried out according to method B to GOST 9.401. On the test samples did cruciate incision to determine the resistance of the composition to the effects of salt fog and degree distribution. According to GOST 9.401 method B sample must stand in the chamber at least 240 hours Sample with the proposed compositions stood in the cell salt that is Ana more than 1200 hours, and on the damaged metal surface corrosion was not found.
In the proposed invention, a large percentage of the content of the first and second fractions specularite became possible thanks to the optimal percentage of rheological additives, rust and filler, which prevent the deposition of particles specularite the first and second fractions, and create from them a solid barrier shield. This barrier shield can improve corrosion resistance, abrasion resistance, durability of the coating in comparison with the prototype; to reduce costs by replacing expensive superfine zinc powder at a cheaper specularite and to provide the ability to convert the rust without careful preparation metal surface.
Thus, the proposed composition consisting of alkyd-phenolic resin, specularite first fraction, specularite second fraction, filler, anti-corrosive pigments, rheological additives, rust Converter in the proposed percentage of components, which established empirically, in combination provides a synergistic effect, which is manifested in the increase of the quantitative indicators of the protective properties at a cost that is low compared to the prototype.
The composition is prepared by mixing dissolvere with [daln] Isham run through the bead mill type "Neitsch in the estimated amount of the polymer solution film-forming substance in an organic solvent, specularite two fractions of filler within 45-60 minutes before milling is not more than 40 μm on device "grindometer", then add a rheological additive, a rust Converter, desiccant and composition additionally stirred for 10-15 minutes.
The composition is applied to the metal surface after removal of the only loose part of the rust with a wire brush by means of air or airless spray, brush, roller. The thickness of a coating layer is 30-40 microns.
The invention is illustrated in the examples in table 1. The drying time of the composition to the extent of 3 at a temperature of (20±2)°C not more than 30-45 minutes, and at a temperature of (80±5)°C not more than 10 minutes drying Time is determined according to GOST 19007.
To achieve good anti-corrosion effect should apply at least two layers of coating, providing a layer thickness of 80 μm. The test results of the composition are shown in table 2.
For testing composition using samples of steel sheet size (70×150×0.8 mm), painted the proposed composition. On a plate put two coats of the composition. Viscosity of the composition is determined by the viscometer VZ-246 with the nozzle diameter of 4 mm at a temperature of (20±2)°C according to GOST 8420. The strength of the film at impact is defined on the device Y-1 GOST 4765. The elasticity of the film in bending is determined according to GOST 6806. Edges the Yu coverage is determined according to GOST 15140, method of lattice cuts. The hardness is determined by the pendulum device type MH GOST 5233. Resistance to static action of a liquid is determined according to GOST 9.403. The samples coated with the composition is fully immersed in the appropriate liquid medium. Accelerated environmental tests are carried out in accordance with GOST 9.401 in cycles, simulating conditions in the outdoor atmosphere of temperate climate (1) according to method 2 and moderately cold climate (UHL 1) method 3.
After the tests evaluate the decorative and protective properties of the composition according to GOST 9.407.
These tables show that the proposed composition exceeds the prototype for the drying time, abrazivostruynoy, protective properties, especially to the effects of salt fog, durability.
Higher protective properties of the proposed composition allow to use it on corroded metal in chemically aggressive conditions in areas with moderate and moderately cold climate.
|Components, wt.%||Prototype to patent No. 2304602||Examples according to the invention|
|a) AF-033||of 17.0||-||-||30,0||-||-||-||-||-|
|b) AMP 30×60||-||14,0||21.0||-||25,0||35,0||-||35,0||-|
|in) "Arundina Ophtal-55"||-||-||-||-||-||35,0||-||-|
|g) Octagon 1,2,3||-||-||-||-||-||0,5||-||0,5||-|
|a) Bentonite organophilic|
|Specularite first fraction|
|a) Deposit Ore|
|b) brand Miox||-||-||22,0||25,0||-||-||-||-||-|
|in grade Nubifer||-||-||-||-||23,0||-||-||-||21,0|
|Specularite second faction|
|a) Deposit Ore|
|b) brand Miox||-||-||10,0||-||-||6,0||-||-||-|
|in grade Nubifer||-||-||-||-||-||-||-||-||9,0|
|a) micro-talc||-||-||-||-||-||-||to 12.0||4,0||7,0|
|b) Omyacarb 2-KA||-||-||to 12.0||8,0||-||4,0||-||-|
|The zinc phosphate||-||-||10,0||6,5||7,0||9,0||5,0||9,0||7,0|
|The rust Converter|
|Alkofer AC - derived||-||-||-||-||-||-||-||-||1,5|
|C) white spirit||-||-||4,0||-||-||-||8,5||-||15,0|
|g) butyl acetate||-||-||-||3,5|
|The results of the tests|
|Indices||The proposed composition||The prototype for the patent 2284342|
|Compounds from tables 1|
|Viscosity of the composition, with||55||60||58||62||56||62||50||41,0||39,0|
|The strength of the film upon impact, cm||50||50||50||50||50||50||50||50,0||50,0|
|The elasticity of the film bending, mm||1||1||1||1||1||1||1||1||2|
|The adhesion of the coating, points||1||1||1||1||1||1||1||1||1|
|Drying time to degree 3, hours at a temperature of (20±2)°C||45 min||40 min||40 min||35 min||35 min||45 min||45 min||1||2|
|The hardness of the coating, the river. units||0.45||0.48||0,41||0,40||0,5||0,35||0,37||0.3||0.32|
|The resistance of the coating at a temperature of (20±2)°C to static action of transformer oil, h||72||48||72||48||72||72||48||72||60|
|Resistance to the effects of salt fog, h||1200||1200||1200||1200||1200||1200||1200||240||240|
|Resistance to abrasion, quartz sand, g/m2||18,6||15,8||20,1||16,4||20,3||16,4||15,3||40,4||35,6|
|The durability of the composition according to GOST 9.401-91, years, not less than||8||8||8||8||8||8||8||5||5|
1. Composition for anti-corrosion coatings, including the modified alkyd foaming agent, a rheological additive, a drier, an organic solvent, characterized in that the composition additionally contains fillers, zinc phosphate, rust Converter on the basis of tannins tannins and derivatives, specularite with a high content of Fe2O3and consisting of two fractions, the size of the particles of the first fraction is not less than 63 μm, the particle size of the second fraction is not more than 20 μm, in the following ratio, wt.%:
|Modified alkyd foaming agent||21-35|
|Specularite first fraction||20-30|
|Specularite second faction||6-15|
|The zinc phosphate||5-10|
|The rust Converter on the basis of tannins and|
|derivatives of tannins||1-3|
2. The composition according to claim 1, characterized in that as a rheological additive used surfactant based on fatty amine brand TROYSOL.
SUBSTANCE: invention relates to making coatings for different equipment and structural units of residential, public and industrial buildings and structures. Proposed is a paint-coating containing the following (in wt %): binder in form of solutions of acrylic (co)polymers and/or organosilicon resins in an organic solvent (10-25); additional binder in form of organosoluble polyurethanes (5-15); filler selected from microwollastonite, kaolin, micro-marble, micro-mica and/or inert barite filler (10-30); modifying additives made in form of ceramic and/or glass beads with size of 20-150 mcm (10-30); antipyrene additive (10-20) and pigment (2-4). The pigment used can be titanium dioxide. The suitable antipyrene additive is a compound from the group: phosphorus-containing compounds, hydroxides of aluminium or magnesium, zinc borate, melamine and pentaerythritol.
EFFECT: preparation of a coating with high thermo-, firer- and weather resistance, the coating also has good sound-proofing properties.
3 cl, 2 tbl, 9 ex
SUBSTANCE: described is a method of making chromate anticorrosive pigment involving suspension of spent chrome-aluminium catalyst in aqueous solution of calcium nitrate and barium nitrate, taken in amount of 10-30% and 5-25% of the mass of catalyst respectively, in mass ratio of catalyst to the said nitrates equal to 65-70:30-35 respectively, dehydration of the obtained mixture with subsequent calcination at 800-900°C for 3-6 hours and grinding. The obtained pigment has anticorrosive effectiveness which surpasses that of the closest analogue by 6-40% and has lower cost.
EFFECT: use of pigment in ground coating improves anticorrosive properties of the coating and increases environmental friendliness.
1 cl, 1 tbl, 15 ex
FIELD: construction industry.
SUBSTANCE: invention refers to corrosion-resistant filler on the basis of lignified wastes of plant raw material, which is included in lacquer coatings and used for protection of metal surfaces against corrosion. Filler includes base made from lignified wastes of plant raw material crushed till powder is obtained, and amine-bearing addition. As lignified wastes of plant raw material, there used are fruit kernels (apricots, peaches, cherries, plums) and/or shells of nuts (walnuts, almond nuts, pistaches, coconuts, pine nuts, peanuts) or their composition with kernels of berries (grape, pomegranate, cornel), which are crushed to 5-40 mcm particle size. As amine-bearing addition, there used is monoethanolamine or triethanolamine.
EFFECT: filler has high corrosion-resisting properties and properties of rust solvent.
7 cl, 3 tbl
SUBSTANCE: anticorrosion coating composition which can be used for protecting steel structures, objects and equipment from corrosion in atmospheric conditions and aqueous media, contains finely dispersed zinc powder, polystyrene and/or a copolymer of styrene with rubber, organic solvent and a rheological additive, and additionally a binder in form of a polyisocyanate prepolymer - aromatic polyisocyanate prepolymer based on diphenylmethanediisocyanate and moisture-absorbing additives. The finely dispersed zinc powder is obtained through physical vapour deposition. The moisture-absorbing additive used is tosylisocyanate and/or micronised highly porous crystalline aluminium silicat. The rheological additive used is bentonite or montmorillonite. The organic solvent used is a solvent of oil or xylene or butylacetate or methoxypropylacetate or white spirit or mixture thereof.
EFFECT: improved physical and mechanical and protective properties of the coating based on the composition, reduced presence of defects in the coating, reduced consumption of the composition, with preservation of protective properties, increased stability during storage and longer storage life.
8 cl, 4 tbl
FIELD: production processes.
SUBSTANCE: blemished surface is covered with polyester resins Derakane 8084 as primer coat, after drying surface is covered with at least two layers of powder-bonded glass-fiber mat and three layers of surface film as reinforcing layer, these layers are resinated by Derakane 411-350, rolled, after drying protecting cover as wax top coat based on isophthalic polyester is applied.
EFFECT: improvement of coating service life.
3 cl, 1 dwg
SUBSTANCE: described is a heat resistant coating composition containing the following, wt %: polyorganosiloxane resin - 20-25, pentaphthalic lacquer - 8-14, isobutylmethacrylate polymer - 5-7, heat resistant pigment - 11-17, filler - 5-10, rheological additive - 1-2, thickener - 1-2 and organic solvent - the rest. The composition contains porous silicate in form of pearlite or kieselguhr, and the heat resistant pigment is aluminium powder or heat resistant pigments of different colours.
EFFECT: increased sedimentation resistance during storage and provision for coating with high resistance to physical and chemical effects.
3 cl, 2 tbl, 15 ex
SUBSTANCE: invention relates to anticorrosion zinc-containing coating compositions for corrosion protection of steel structures, objects and equipment used in average- and highly aggressive media and can be used in industrial and civil engineering, shipbuilding, motor car construction and bridge building for protecting engineering and hydraulic engineering structures, industrial and power installations, equipment of chemical and petrochemical industry, port structures. The anticorrosion composition contains finely dispersed zinc powder, zinc oxide, binder in form of chlorinated rubber, modified with alkyd resin with acidity of not more than 20 mgKOH/g and plasticised with chlorinated paraffin wax in a medium of organic solvent and target additives in form of polymerised amphoteric oil, organophilic bentonite and graphite.
EFFECT: obtaining one-pack anticorrosion composition with good processing characteristics with longer protection of coatings in average- and highly aggressive media.
SUBSTANCE: invention relates to compositions for anticorrosion zinc-containing coating material of first coating, paint and enamel type for corrosion protection of steel structures, objects and equipment used in average- and highly aggressive media and can be used in industrial and civil engineering, shipbuilding, motor car construction and bridge building for protecting engineering and hydraulic engineering structures, industrial and power installations, equipment of chemical and petrochemical industry, port structures. The composition contains finely dispersed zinc power, binder in form of chlorinated rubber, epoxy resin, chlorinated paraffin wax and an organic solvent and target additives in form of polymerised amphoteric oil based on aromatic oil distillates, organophilic bentonite and additionally graphite.
EFFECT: obtaining one-pack anticorrosion composition with good processing characteristics with longer protection of coatings in average- and highly aggressive media.
SUBSTANCE: base coat contains chlorine-containing polymer, pigment, plasticiser, organic solvent and rust solvent. The base coat also contains a texturing agent, a dispersing agent and an imidazole derivative. The chlorine-containing polymer used is a vinylchloride copolymer and components are in the following ratio, wt %: vinylchloride copolymer 10-20; plasticiser 3-6; texturing agent 0.2-0.6; dispersing agent 0.2-0.6; pigment 10-25; modifier-rust solvent 5-10; imidazole derivative 0.2-3.0; organic solvent - the rest.
EFFECT: use of the invention allows for depositing a base coat on an unprepared surface in a wide temperature range.
12 cl, 2 tbl
SUBSTANCE: invention relates to a cold drying wear-resistant polymer composition, which can be used for protecting metal and concrete structures, for making floors and for other purposes. The composition contains the following components with their ratio given in pts. wt: 100 epoxy resin, 30.0 to 60.0 modifier, 40.0 to 80.0 flake reinforcement, 5.0 to 10.0 aerosil and/or 1.0 to 20.0 microtalc, 8.0 to 28.0 amine hardening agent. If necessary, the composition can contain a solvent in amount of up to 120 pts. wt. The modifier is butadiene-nitrile low-molecular rubber, or polysulphide rubber, or acrylic resin. The flake reinforcement is flaked silicon or iron mica. The amine hardening agent is a product of condensing N-methylol caprolactam with an aliphatic amine hardening agent, selected from a group which consists of diethylene triamine, triethylene tetraamine, polyethylene polyamine, or a mixture of the above mentioned product of condensing aliphatic amine, selected from a group which consists of diethylene triamine, tetraethylene tetraamine, polyethylene polyamine, and/or with organosilicon amine.
EFFECT: invention increases resistance to type B-3V synthetic oils, light resistance, adhesion to metal or concrete, elasticity, wear-resistance, hardness.
2 tbl, 11 ex
SUBSTANCE: group of invention relates to production of paint and varnish compositions such as enamel, and specifically to production of alkyd-urethane enamel with different colour spectrum, which can be used for protective-decorative coating various types of surfaces. The paint and varnish alkyd-urethane enamel composition contains a combination of at least one alkyd varnish and at least one alkyd-urethane varnish, a pigment component, which is necessary for forming the colour of the enamel, at least one organic solvent, a dispersing agent, a drier and other auxiliary target additives, including at least one rheological additive, anti-film additive, anti-crater additive. The method of producing alkyd-urethane enamel with different colours involves the following stages: possible preparation of separate liquid and granular components, and their batching in accordance with the formulation and consumption rates for the produced amount of enamel, preparation of intermediate products, two-step dispersion, setting "type", step-by-step control. Manufacturing complex for producing alkyd-urethane enamel in form of suspension, containing colouring pigments in a mixture of organic varnish, solvent, lapping compound and target additives, consists of posts which form a hydraulic system fitted with process pipe-lines, where posts are linked with each other according to operations producing the said suspensions and include a post for storing initial dry and liquid components, a post for batching and weighing said components, a post for mixing the components, a dispersing post, a post for setting "type" of the enamel and a post for packing final enamel product.
EFFECT: obtaining alkyd-urethane enamel with good physical and chemical characteristics, which does not flake during storage and does not form surface film and residue.
25 cl, 5 tbl, 1 dwg, 1 ex
SUBSTANCE: preheated oil from a reservoir 9 is loaded into reactor 5 with an agitator 2 and reactor heating thereafter enabled. Dissolved white resin is loaded. After 250°C is achieved, nitrogen feed is disabled, while the reactor 5 is connected to a vacuum network. Pentaerithrit and lead siccative are loaded into the reactor 5. Then a reactor degassing system is disabled with enabled inert gas feeding and continued heating of reaction mixture. After re-etherification process is complete, heating of the reactor 5 is disabled, while the reaction mixture is cooled. Phthalic anhydride and maleic anhydride are loaded into the reactor 5. For simplifying water extraction from the reaction zone, xylene from the reservoir 10 is introduced into the reactor 5 by an industrial pipe-line with a pump 46. Water vapour as an azeotrope mixture, together with xylene vapour are directed to a packed column 26 and a refrigerator 27. Resin from the reactor 5 is discharged to a mixer 11. Solvent vapour generated in resin dissolving is delivered to a heat exchanger 33, wherein condensed and flow down back to the mixer 11.
EFFECT: stable characteristics of technological process and improved fire and environmental safety.
20 cl, 2 dwg
SUBSTANCE: group of inventions refers to making paint compositions, such as enamels, namely, to making various-palette alkyd-urethane enamels to be used for protective decorative coating of various surfaces. Paint alkyd-urethane enamel compositions contain a combination of, at least, one alkyd varnish, and, at least, one alkyd-urethane varnish, dye-forming pigment additive component necessary to form enamel colour, at least, one organic solvent, dispersant, siccative and other auxiliary base additives, including, at least, one rheological additive, antiskinning additive, antidimpling additive. Herewith alkyd-urethane varnish content in the composition is at least 10% of total weight of the specified varnishes and/or at least 8% of paint composition weight.
EFFECT: high stress-strain properties and processing behaviour of produced enamels.
13 cl, 2 tbl, 6 ex
SUBSTANCE: invention concerns paint-and-varnish industry, particularly alkyd varnish production using automated control system of technological process, as well as feeding of bulk components to reactor with explosive medium. Method of alkyd varnish production involves alcoholytic re-etherification of vegetable oil by pentaerythritol with heating in inert gas flow in the presence of catalyst, followed by polyetherification of re-etherification products by phthalic anhydride with heating, water distillation with azeotropic solvent, reaction product - alkyd resin - cooling to 160-180°C, varnish preparation by mixing obtained resin with organic solvent. Re-etherification and polyetherification process is performed in reactor featuring electric induction heating system and connected to technological pipelines with stop valves. Reactor has at least one pipe socket with heat-resistant gate installed in it, and at least two water heat exchangers in the form of worm pipes, mixer, nozzle column, vertical cooler, condenser and separation vessel. Alkyd resin dissolution is performed in mixer with stop valves, mixer, jacket and reverse heat exchanger for condensation and recycling of evaporating solvents in the mixer; vegetable oil dosing and loading to reactor is performed by automated control system, where stop valves of oil feed line are opened and closed by remote controls automatically or steered from control console; dosing and loading of bulk component, such as pentaerythritol and phthalic anhydride is performed and controlled over automated control system for bulk component dosage and loading, including depacker, tanker on tension weighing device, pneumatic lift, at least one ripper, snail feeder and mentioned heat-resistant gate in pipe socket of reactor; dosing and loading of azeotropic solvent and water to worm pipes of reactor, as well as recycled water feed and control and solvent feed to mixer are performed with remote automatic control of stop valves. In addition invention claims method of bulk component feed to reactor used in production of alkyd varnish.
EFFECT: reduced labour cost, improved fire protection and environmental safety.
22 cl, 1 tbl, 2 dwg, 2 ex
SUBSTANCE: invention relates to paint-and-varnish industry, in particular to method for production of alkyd-urethane enamels of various colours, and may be used to produce protective-decorating enamel coatings applied onto various substrates. Method for production of alkyd-urethane enamel is described. This method implies preparation of individual precursor components, their dosing, preparation of intermediate enamel product by combining alkyd pentaphthalic lacquer with dispersing medium, organic solvent and rheological agent, the mixture being stirred at 300-500 rpm, followed by introduction of free-flowing pigments into the mixture, together with filler, when required. Pigments and filler are pre-dispersed under stirring at a speed up to 1000 rpm until homogenous suspension is obtained. Then intermediate product is further dispersed until required degree of grinding is obtained, alkyd-urethane lacquer is added under stirring and, when required, anti-crater additive and paint dryer are added. Then, pigment tinting paste is added, the mixture is stirred to obtain homogenous suspension, and antiskinning agent is added.
EFFECT: production of alkyd-urethane enamels of various colours, with high physical and chemical properties.
10 cl, 5 tbl
SUBSTANCE: invention relates to the pigmental paste for paint toning. The pigmental paste for toning the covering composition is described, where the pigmental paste includes: at least one ramified alkide with the viscosity less than 5 Pa·s at 23°C and shift rate 100 c-1 and the number-average molecular weight Mn>1500, which contains the groups for the oxidising drying produced from the fatty acids; one or several solvents without aromatic substances - 28 mass percent; and one or several pigments. At that, the rate of alkide ramification is at least 0/35 and preferably less than 0.42, alkide fatness is at least 76 and preferably less than 84, the alkide acidity index is within 6 to 9 mg KOH/g; the solvent without the aromatic substances contains the aliphatic hydrocarbon solvents, ketones and/or complex ethers with molecular weight Mn>1500. The method for paint toning is described where the principal paint is selected from the set of principal paints and then mixed with the said pigmental paint, at that, the principal paint corresponds to the composition based on solvent and containing alkide.
EFFECT: invented pigmental paint is useful in toning paint with high concentration of solid substances.
11 cl, 8 dwg
FIELD: protecting materials.
SUBSTANCE: invention relates to priming compositions used for anticorrosive covers applied on surface of mainly ferrous metals in machine engineering, and woody and other materials. The priming composition comprises lacquer GF-01, red pigment, siccative, solvent, chalk of sort M-5 and lecithin as a disperser, siccative NF-1 as a siccative, and slime after dry scrubbing in electric steel melting production of the following chemical composition, wt.-%: SiO2, 7.76; phosphorus (P), 0.041; chrome (Cr) total, 1.0; Al2O3, 0.93; TiO2, 0.099; MnO, 2.29; CaO, 21.3; MgO, 24.5; FeO, 3.91; Fe2O3, 32.02; CaF2, 5.26; CaO (incompletely burned material), 0.89 in the following granulometric composition of slime, %: below 20 mcm, 15; from 20 to 25 mcm, 60, and from 25 to 100 mcm, 25. Invention provides decreasing cost and enhancing exploitation parameters of the priming in coating the broad spectrum of surfaces in machine engineering and building.
EFFECT: improved and valuable properties of priming composition.
FIELD: paint and varnish materials.
SUBSTANCE: invention relates to coloring pastes designated for using in ready basic pant and varnish materials that are soluble in organic solvents. Universal pigment coloring paste comprises pigment, film-forming agent, disperser, thickening agent and organic solvent. Alkyd glyphtal resin based on flax oil, glycerol and phthalic anhydride is used as a filling agent taken in the ratio, wt.-%: 45-47; 17-19 and 34-38, respectively, with viscosity index 60 measured at temperature 20.0 ± 0.5°C by viscosimeter device VZ-246 as 50% resin solution in xylene and having acid number 17-19 mg of KOH/g taken in the amount 30-40 wt.-%. Thickening agent Clayton AF is used a thickening agent taken in the amount 0.3-0.5 wt.-%. Xylene is used as an organic solvent taken in the amount 34-45 wt.-%. Disperser is used in the amount 0.9-2 wt.-%, and pigment, the balance. Invention provides expanding assortment of coloring pigment pastas, their using in different basis of dyes in organic solvents, providing stability of dyes and without unfavorable effect of properties of paint and varnish covers.
EFFECT: improved and valuable properties of paste.
FIELD: household chemical goods.
SUBSTANCE: invention provides composition for applying self-oxidizing architectural coating, which is suitable for handling by inexperienced users having no personal respiratory protection devices at ambient temperatures and natural day light. Composition contains self-oxidizing polymeric binder and promoter system to promote self-oxidation of the binder, which promoter contains from 0 to 0.01 wt % cobalt ions and metal ions other than cobalt ions promoting surface self-oxidation in amount 0.001 to 0.04 wt % and those promoting bulk self-oxidation in amount 0.5 to 2 wt %, and also at least one photoinitiator in amount 0.3 to 2 wt %, all based on the weight of binder. This composition is applied onto surface to obtain dried architectural coating irradiated by low-energy radiation in the form of light with wavelength between 350 and 650 nm. Composition removes need of utilizing larger than trace amounts of cobalt ions, which are considered to be carcinogenic, and ensures achievement of suitably high self-oxidation rates. No cobalt utilization is preffered. Utilization of low concentrations of other metal ions leads to reduction in composition color variation, often al levels lower than those achieved when utilizing common cobalt promoters.
EFFECT: avoided need of high-energy irradiation and accurately controlled conditions, and improved luster of coating.
7 cl, 4 dwg, 7 tbl, 9 ex
FIELD: ferrous metallurgy; oil refining industry; building industry; chemical industry; compositions for production of the anticorrosive zinc-containing base coatings.
SUBSTANCE: the invention is pertaining to the compositions for production of the anticorrosive zinc-containing base coatings intended for a sacrificial protection from corrosion of the products, buildings and constructions made out of the ferrous metals exploited in the atmospheric conditions, in the conditions of water-saline mist, in the medium of the oil products vapors and aerosols. The composition for production of the antirust coating includes the fine-dispersive zinc powder, the three-metal desiccant, the toluene, the modified alkyd film-forming substance, in the capacity of which they use the short-alkyd varnish with addition of the tung oil, modified with the phenol-formaldehyde resin in amount of no more than 5.0 % of the mass of the alkyd film-former, with the acid number of no more than 15.0 mgKOH/g of the film-former and the dynamic viscosity after Brunkfild - 2.0-4.5 Pa·s, and the antisediment additive, in the capacity of which use the admixture of zinc oxide, lecithin and the organophilic bentonite of SD-1 brand. The composition has the high sediment stability at storing and at coating, dries faster and ensures production of the antirust coatings with the heightened resistivity to the water and petroleum action.
EFFECT: the invention ensures production of the composition having the high sediment stability at storing and coating, the fast drying and used for application of the antirust coatings with the heightened resistivity to the water and petroleum action.
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