The method of obtaining anti-corrosive composition
(57) Abstract:Usage: for application over primed metal, wood, plaster and other porous surfaces exposed to atmospheric influences and indoors. The inventive method of obtaining anti-corrosive composition is made by preparing a solution of Novolac phenol-formaldehyde resin in an organic solvent and subsequent mixing it with three or tetrachromats zinc. Then to the mixture with stirring, add the remaining components of unsaturated alkyd pentaftalevyh resin, pigments, solvents. The components of the composition can be selected in the following ratios,wt.h.: unsaturated alkyd resin 100, navrachna phenol-formaldehyde resin is 50 to 100, pigments 250-340, desiccant 8-14, organic solvents 125-170, three - or tetrachromat zinc 5-20 including Characteristics of properties: conditional resistance film 6 h drying time at 202oC to degree 1 - 0.5 h, to the extent 3 to 4.0 h, the adhesion 1 point, the hardness of the film of 0.5-0.7, elasticity of 1 mm, a permeability of 1.0-1.2 mg/cm day, water resistance 148-160 h, cholestanol 48 hours 1 C.p. f-crystals, 2 tab. The invention relates to the region is named, wood, plaster and other porous surfaces exposed to atmospheric influences, and indoors.Known methods for producing anti-corrosion formulations based on alkyd resins in combination with phenol-formaldehyde oligomers /1/.The closest in technical essence to the claimed invention is a method for enamel by mixing Novolac phenol-formaldehyde resin, unsaturated alkyd /pentaftalevyh/ resin, pigments /titanium dioxide, iron oxide pigments, ochre, red lead, etc./ fillers /calcite, barite, talc, Aerosil and others/, drying agent and organic solvents white spirit, xylene, nefras/ and special additives/ epoxy resin, vegetable oil/. Enamel is prepared by pre-mixing the phenol-formaldehyde resin and vegetable oil by heating, followed by combining the resulting product with alkyd resin, epoxy resin, fillers, pigments and organic solvents /2/.Paint /enamel/ obtained in a known manner, does not have the necessary resistance, adhesion, water resistance, santonocito and has a long drying time.ICO-mechanical and protective properties.This object is achieved in that in the method of preparation of the anti-corrosive composition by mixing unsaturated pentaftalevoj /alkyd resin/, Novolac phenol-formaldehyde resin, pigments, drying agent and organic solvents, first prepare a solution of Novolac phenol-formaldehyde resin in an organic solvent and mix it with three or tetrachromats zinc, and then to the resulting mixture with stirring, add the remaining components.The quantitative content of the components is not in this invention the determining factor to achieve a technical result, and only additionally illustrates the method, i.e., incoming components taken in the following ratio,wt.h.Unsaturated alkyl resin 100,0
Novolac phenol-formaldehyde resin 50-100
Organic solvents 125-170
Three or tetrachromat zinc 5-20
The method is used:
1. Solutions of alkyd resin in a mixture of xylene and white spirit or xylene and solvent: varnish alkyd unified /TU 301-10-0-352-91, S. N. 56%/, varnish alkyd semi-PF-060/TU 6-10-612-75, S. N. 53%/, varnish alkyd semi-PF-053 (TU-6-10-612-75, C. the PRS in xylene phenol-formadehyde resin L /TU 6-10-1824-81/.3. Pigments: zinc white /GOST 202-84/, pigment red iron oxide /THE 6-10-602-86/ phosphate chromium /TU 6-18-87-85/ carbon THE technical /GOST 7885-86/ ochre /OST 6-10-430-80, MEAs. 1/ and others.4. Driers: fatty acid /LCD 1, THE 6-10-1641-86 LCD 12, THE 6-21-0204150-1-90/ and fused /64B; P, THE 6-10-135-1-78/ and others.5. Tricerat zinc ZnCrO43Zn(OH)2tetrachromat zinc ZnCrO44Zn(OH)2/GOST 16763-79/.In addition to these components, the introduction of filler, for example, carbonate /TU 301-10-025-90/ and specific additives.A solution of phenol-formaldehyde resin with three or tetrachromats zinc mix in for 10-30 min at room temperature.Below are examples of implementation of this method.Example 1. In high-speed dissolver download solution of phenol-formaldehyde resin in xylene /S. N. 60%) in the amount of 50 kg /calculated on the dry matter/ and tetrachromat zinc in the amount of 11.6 kg and stirred for 30 min at a temperature of 20oC. Then, while operating the stirrer download solution of an alkyd resin in a mixture of xylene and white spirit in a ratio of 3:2 in the amount of 100 kg /calculated on the dry matter/ and of 200.0 kg of pigment red iron oxide, 4,50 kg of phosphinite for dispersion.After dispersion of the pigment paste comes in tinting the mixer, where to download the desiccant LCD 1 of 14 kg and stirred for 30 minutes the Finished structure after activating the "type" in color and viscosity enters the filter on the filter "Kuno" and poured into containers.Examples 2,3 /table. 1/ different blending phenol-formaldehyde resin with three or tetrachromats zinc /in example 2-10 min in example 3-90 min) and the ratio of the components, carry out technological scheme similar to the scheme of example 1.The composition obtained by the proposed method, applied by brush, roller, method of air or airless spray.The results of the authors of the test composition obtained by the proposed method, in comparison with the composition obtained by the method prototype is presented in table.2. 1. The method of obtaining anti-corrosive composition by mixing unsaturated pentaftalevyh alkyd resins, phenol-formaldehyde Novolac resins, pigments, drying agent and organic solvents, characterized in that the first prepare a solution of Novolac phenol-formaldehyde resin in an organic solvent and mix it with three or Terr> 2. The method according to p. 1, characterized in that the ingredients are taken in the following ratio, wt.h:
Unsaturated pentaftalevyh resin 100
Novolac phenol-formaldehyde resin 50 100
Pigments 250 340
Desiccant 8 14
Organic solvents 125 170
Three or tetrachromat zinc 5 20
SUBSTANCE: aqueous medium contains A) one or more water-diluted polyester polyols with hydroxyl number ranging from 20 to 300 mg KOH/g and acid number from 20 to 80 mg KOH/g B) one or more cross linking agents which are active towards OH groups, C) water, D) neutralising agent, and can also contain solvents, auxiliary agents and additives.
EFFECT: good adhesion to metals and high resistance to aggressive media.
13 cl, 4 ex, 2 tbl
SUBSTANCE: coating composition contains a polyvinyl chloride polymer, an acrylic resin which is preferably a polymer obtained from monomer acrylates or methacrylates, such as acrylic acid, methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, pentyl acrylate, hexyl acrylate, methacrylic acid, methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, pentyl methacrylate, hexyl methacrylate resins, copolymer resins of said components or mixtures thereof, a cross-linking agent which is obtained from phenol, para-tert-butylphenol, xylenol or mixture thereof, and formaldehyde, an additive, a dye and a solvent component, and the composition essentially does not contain bisphenol A diglycidyl ether (BADGE) and bisphenol A resin. The coatings are suitable for containers made from three parts, as well as for metal cans made through deep-drawing. The coatings are particularly useful for covers which are torn in order to open due to their unusual flexibility and resistance to sterilisation.
EFFECT: composition provides coatings for metal cans which have suitable flexibility, resistance to scratching, adhesion and sterilisation during processing while in contact with food.
SUBSTANCE: composition for preparation of metal surface consists of compound of titanium phosphate, has pH from 3 to 12, and additionally contains at least one compound chosen from group consisting of benzoic acid, salicylic acid, gallium acid, lignosulphonic acid and tannic acid and/or at least one substance chosen from group consisting of dispersed in water particles of resin, clay compound, fine particles of oxide and thickener soluble in water and amino-compound represented with formula (1): , where each of groups R1, R2 and R3 is chosen from group consisting of atom of hydrogen of linear or branched alkyl group having from 1 to 10 of atoms of carbon, and linear or branched alkyl group having from 1 to 10 atoms of carbon and having polar group in main chain, also, R1, R2 and R3 are not all are atoms of hydrogen.
EFFECT: composition is continuously kept in form of dispersion wherein compound of titanium phosphate stably exists and reveals good stability at treatment of metal surface before application of coating.
6 cl, 2 tbl, 17 ex
FIELD: process engineering.
SUBSTANCE: invention can be used for production of isolation materials based on mineral cotton, in particular, store of glass wool bonded by adhesive composition based on thermosetting resin, particularly, resol. Proposed process comprises application of reagent composition able to interact with formaldehyde selected from compounds with active methylene group on isolation product after cross-linking of thermosetting resin.
EFFECT: decreased amount of formaldehyde in insulating material.
21 cl, 1 dwg, 1 tbl, 2 ex
SUBSTANCE: invention relates to chemical and machine-building industry and repairing equipment by applying polymer coatings on metal articles and machine components, particularly mounting seats of bearings in metal parts of machines. The coating composition contains the following components (in wt %): lacquer F-40 - 87-88; aluminium powder PAP-1 - 11.5-12.0 and bronze powder B1PP-1 - 0.5-1.0, having defined grain-size compositions.
EFFECT: invention reduces hardening temperature and time, reduces power consumption in thermal treatment of the deposited polymer coating and improves deformation-strength properties of films made from the coatings.
2 dwg, 2 tbl
SUBSTANCE: claimed invention relates to cross-linked in meta positions phenolaldehyde resin, in which transverse bonds in meta positions are organic transverse bonds, formed by transition metal and organic fragments, bound to transition metal via at least four intermediate oxygen atoms, or transverse bonds in meta positions are inorganic bonds, including terminal parts, which contain rare earth element, and core, containing at least one transition metal, and each terminal part, containing rare earth element is bound to core, containing transition metal, by means of one or more O, N or S atoms. Also described is method of obtaining said cross-linked in meta positions phenolaldehyde resin, which includes combination of agent, cross-linking in meta positions, which contains transition metal or one or more source-compounds, capable of reacting with formation of such transition metal-containing cross-linking agent with phenolaldehyde resin, activated in meta positions by combination of phenolaldehyde resin with activator of meta positions, containing at least one rare earth element with at least one element of O, N and S, or with activator of meta positions, capable of substituting methylene bonds in phenolaldehyde resin with amine bonds, and having degree of incomplete cross-linking in ortho- and para-positions, equal to at least 2%, and transition metal-containing cross-linking agent represents organic compound, formed by transition metal and organic fragments, bound to transition metal via at least four intermediate oxygen atoms, or represents inorganic compound, including terminal parts, containing rare earth elements, and core, containing at least one transition metal, and each terminal part, containing rare earth element, is bound with transition metal-containing core by means of one or more O, N or S atoms. Described is proppant with resin coating, including particles of proppant substrate, covered with said cross-linked in meta positions phenolaldehyde resin. Described is material for obtaining proppant, containing residue, obtained by heating at temperature from 400°C to 600°C of said cross-linked in meta positions phenolaldehyde resin, obtained by formation in meta positions of inorganic transverse bonds, including terminal parts, which contain rare earth element, and core, which contains, at least, one transition metal, with each terminal part, which contains rare earth element, being bound with transition metal-containing core by means of one or more O, N or S atoms. Described is organometallic proppant, which includes proppant particles, including residue of decomposition of said phenolaldehyde resin, cross-linked in meta positions, and said residue of decomposition is obtained by heating at temperature from 400°C to 600°C to decompose cross-linked in meta positions phanolaldehyde resin, obtained by means of inorganic transverse bonds in meta-positions, including terminal parts, containing rare earth element, and core, containing at least one transition metal, and each terminal section, containing rare earth element, is bound with transition metal-containing core by means of one or more O, N and S atoms.
EFFECT: obtaining benzyl polymers, cross-linked in meta positions, obtaining based on them proppant, possessing improved crush strength, porosity and permeability.
35 cl, 8 dwg, 6 ex
SUBSTANCE: invention relates to hydroxylfunctional oil-based polyols, compositions for coating application, formed on their basis, methods of applying coatings on substrates of surfaces by means of said compositions, in particular on packing materials and the like for storage of food products and drinks, and to substrates, covered with said compositions. Hydroxylfunctional oil-based polyols can be obtained by interaction of epoxidised vegetable oil with hydroxylfunctional material in presence of acidic catalyst, which includes strong acid. Compositions for coating application can be obtained by cross-linking of hydroxylfunctional oil-based polyols by cross-linking agent. Polyol does not include compound, which has (meth)acrylate functional group.
EFFECT: obtaining hydroxylfunctional polyols.
20 cl, 7 ex
SUBSTANCE: composition consists of the following ingredient ratio (wt %): varnish F-40 - 96…97; aluminium nanopowder - 1.8…2; copper nanopowder - 1.5…1.7.
EFFECT: increase of deformation-strength properties, namely specific work of film destruction, made by claimed composition.