A method of obtaining a water dispersion composition

 

(57) Abstract:

Usage: paint industry, in particular aqueous compositions for painting stucco, concrete, primed, wood and other porous surfaces. The inventive method of obtaining a water dispersion of the composition by mixing the emulsifier, phosphate of alkali metal, water glass and water in the presence of polysiloxane within 15-30 min, the subsequent introduction of the mixture of pigment and filler dispersion, combining pigment paste with a water dispersion of a synthetic polymer and further mixing in the presence of (0,5-7,0)% aqueous solution of a thickener for 30-60 minutes Technical result, which provides the invention is to improve the viability of the compositions, as well as to increase the strength of coverage while bending and hardness. table 1.

The present invention relates to methods of producing a water-dispersible compositions used for the protection of wooden structures (walls, frames, doors, stairs and so on), and for painting plaster, concrete, cardboard and other porous and primed surfaces inside and outside the premises.

Known JV is apollites and water (Japan's Bid N 57-98567).

The composition obtained by the above method has low vitality and low elasticity.

There is also known a method of obtaining a water dispersion composition by mixing latex, liquid glass, a phosphate of an alkali metal, pigment, filler and water (Paint & Color J., 1991, v. 181, N 4295, p. 650).

The composition obtained by the above method, has low viability and coverage on the basis of low adhesion.

Closest to the claimed method is a method of obtaining a water dispersion composition by mixing polyoxyethylenated of alkylphenol ether, carboxymethylcellulose, polyphosphate Na, pentahlorfenolyata Na and water, then the aqueous solution is mixed with TiO2, chalk, kaolin, talc and ultramarine, and then in a bead mill to produce the dispersion. Ready weight is mixed with PVA and mochevinoformaldegidny resin in the mixer for 1 h to obtain a homogeneous mass. In the resulting mass is injected phosphoric acid, carefully mix 5 - 10 min and injected liquid glass. The prepared composition is diluted with water. (USSR author's certificate N 1081191).

The resulting composition has a low inespo the practical result which provides the present invention is to improve the viability of the compositions, as well as to increase the strength of coverage while bending and hardness.

This technical result is achieved in that in the method of obtaining a water dispersion composition by mixing latex, liquid glass, emulsifier, thickener, a phosphate of an alkali metal, pigment, fillers and water first aqueous solution of a phosphate of an alkali metal and an emulsifier are mixed for 15 to 30 min with liquid glass in the presence of polysiloxane, then the binder is dispersed with a pigment, fillers and water and combined with an aqueous solution of thickening agent and latex for 30 - 50 minutes

In the process of search and analysis of technical literature found that the distinctive features of the present invention is not described anywhere, therefore, the present invention meets the criterion of inventive step.

The method is used:

latex: latex strollerderby (GOST 38.103550-84); a styrene-acrylic latex; latex definiately (GOST 13522-78) and others,

silicate: sodium silicate (module 3, 1, density 1.2 g/cm3) (GOST Frolov OP-7, OP-10 (GOST 8433-81); sultanol NP-3 (STU 110-218-58-04); sodium liquid soap (TU 10-RSFSR-80-89); neonol (TU 38.103625-88); proxanol is chosen; sulfonate;

thickeners: carboxymethylcellulose sodium (OST 6-05-386-80); acetylcellulose (TU 605-221-317-75); gipan and others,

phosphates of alkali metals: trisodium phosphate (GOST 13493-86); sodium polyphosphate (GOST 20291-80); hexametaphosphate potassium (GOST 20291-80) and others,

pigments: titanium dioxide (GOST 9808-84); yellow iron oxide pigment (GOST 18172-80); red iron oxide (GOST 8135-74); lithopone (GOST 907-72) and others,

fillers: natural chalk enriched (GOST 12085-88); talc powder (GOST 19729-74); kaolin enriched (GOST 21285-75); mica Muscovite (TU 21-25-298-88) and others,

polysiloxan (colorless transparent thick liquid, chemically inert): polyethylenepolyamine (GOST 13004-77); polymethylphenylsiloxane (GOST 13032-77).

Example 1. In the apparatus with stirrer was dissolved in 10.0 g of water 2.0 g of sodium polyphosphate and 15 g polyoxyethylene ether of alkylphenol OP-10. In the resulting solution load of 100 g of sodium water glass and 2.0 g of policyprivacy and stirred for 15 minutes Then in the obtained binder load 240 g of titanium dioxide, 440 g of chalk, 100 g of talcum powder, 60 g of kaolin and 640 g of water. The obtained pigment paste DISP carboxymethylcellulose. In another apparatus with stirrer load obtained above pigment paste, an aqueous solution of carboxymethyl cellulose and 100 g Starovoitova latex and stirred for 45 minutes

Example 2. In the apparatus with stirrer was dissolved in 20 g of water and 0.1 g trinacria phosphate and 4 g of sulfinol NP-3. In the resulting solution load of 60 g of potassium liquid glass and 0.1 g of polymethylphenylsiloxane and stirred for 20 minutes Then in the obtained binder load of 25 g of titanium dioxide, 10 g of yellow iron oxide pigment, 5 g of red iron oxide, 300 g of chalk, 85 g of talc, 35 g of kaolin and 380 g of water. The obtained pigment paste was dispersed in a bead mill to milling degree 40 microns. Separately in the apparatus with a stirrer, 100 g of water is mixed with 6 g of acetylcellulose. In another apparatus with stirrer load obtained above pigment paste, an aqueous solution of acetylcellulose and 100 g of styrene-acrylic latex and stirred for 30 minutes

Example 3. In the apparatus with stirrer was dissolved in 15 g of water to 5.4 g hexameta potassium phosphate and 1 g sodium liquid soap. In the resulting solution load of 50 g potassium liquid glass and 5 g of policyprivacy and stirred for 30 minutes Then in the obtained binder load of 60 g of titanium dioxide, which are largely milling 60 μm. Separately in the apparatus with stirrer, 15 g of water are mixed with 1 g of giana. In another apparatus with stirrer load obtained above pigment paste, an aqueous solution of giana and 100 g divinylacetylene latex and stirred for 30 minutes

The table shows the results of tests conducted by the authors of the composition obtained by the proposed method, and the composition obtained by the method of the prototype.

The viability of the composition is determined at initial viscosity of from 18 to 20 with the viscometer B3-4 and after a specified day, the achievement of viscosity B3-4 50 S.

The moisture resistance of the coating is determined as follows.

The composition is applied to the concrete substrate d = 8 cm and a thickness of 6 cm on both sides and feel moisture on the 7th day after application. Determine visually the condition of the substrate, and the exposure time cover up the rash, blisters, etc.

As follows from the data shown in the table, the composition obtained by the proposed method has high viability and coverage based on it has high strength in bending and hardness.

In addition, the coating composition obtained by the proposed method, has a high weenie emulsifier, phosphate of an alkali metal and water, the subsequent introduction of the mixture of pigment and filler dispersion, combining pigment paste with a water dispersion of a synthetic polymer and mixing, wherein the mixture of emulsifier, phosphate of an alkali metal and water, add liquid glass and mixing them is carried out in the presence of polysiloxane within 15 - 30 minutes, and at the stage of combining the pigment paste with a water dispersion of a synthetic polymer injected water (0,5 - 7)% thickener solution and stirred for 30 to 60 min, in the following ratio, wt.h.:

Water dispersion of a synthetic polymer (dry matter) - 100,0

Phosphate of an alkali metal is 0.1 - 5,4

Emulsifier - 1,0 - 15,0

Liquid glass - 50,0 - 100,0

Polysiloxan - 0,1 - 5,0

Thickener (dry matter) - 1,0 - 20,0

Pigments and fillers 460,0 - 840,0

Water - 400,0 - 900,00

 

Same patents:

The invention relates to anti-corrosion and waterproofing protection structures, storage pools industrial wastewater from electroplating waste polluted waters of metallurgical production, and more particularly to a technology for waterproofing materials based on chlorosulfonated polyethylene (HCPE)

The invention relates to the field of building materials and can be used for fire protection of metal and wooden constructions

The invention relates to the field of production of alkyd /pentaftalevyh/ compositions used for coating on the primed metal, wood, plaster and other porous surfaces exposed to atmospheric influences, and indoors

The invention relates to the production of insulating coatings on electrical steel used in the magnetic circuits of electrical machines, apparatus and instruments

The invention relates to paint compositions, in particular to a water-dispersible compositions for interior and exterior painting of buildings and structures of brick, concrete, stucco, wood, etc

The invention relates to catalyzed with water-dilutable upon protonation, cationic lacquer binders which contain bismuth salt of aliphatic acids hydroxycarbonate

The invention relates to construction materials and can be used for decoration of facades and interiors of buildings, mechanized methods

FIELD: fireproof paint-vehicle protective materials.

SUBSTANCE: claimed paint contains polymeric binder, solvent and blowing additive consisting of pentaerythritole and ammonium polyphosphate at ratio of 1:1.3-2.6, respectively, and in addition expanded graphite. Materials of present invention useful in building industry, aviation, railway transport, etc.

EFFECT: paint with improved functionality, increased fire resistance, and expanded blowing temperature interval.

3 cl, 4 ex, 2 tbl

FIELD: paint manufacturing for painting, applied and decorative art, icon painting, etc.

SUBSTANCE: claimed emulsion contains (mass %) dammar lacquer 38.0-43.0; gum-arabic (30 % aqueous solution) 9.0-11.0; dehydrated castor oil 1.6-3.0; polyethylene glycol nonylphenole ester 8.0-10.0; glycerol 6.0-8.0; ox-bile 0.3-0.6; and balance; demineralized water with total hardness of at most 0.01 mg-eqv/l. Pain of invention contains: said emulsion (50-70 mass %); mixture of barium sulfate (10.0-30.0 mass %) and sodium aluminum silicate (5.0-10.0 mass %) as filler and balance: colorant. Emulsion of present invention is useful for various painting procedures (cloth, wood, paper, glass, clay, metal, etc).

EFFECT: paint of improved light stability.

2 cl, 4 tbl

FIELD: protective coat for metal surface.

SUBSTANCE: invention relates to composition for bottom layer manufacturing based on aqueous water dispersions of polymer (latex). Claimed composition contains styrene-butylacrylate copolymer or styrene-butylacrylate-acrylonitrile terpolymer, polyvinyl alcohol, liquid dianic resin with molecular weight of 350-600, polyethylene polyamine, and water. Composition of present invention is useful in production of bottom layer on steel, aluminum or their alloy surface.

EFFECT: protective coats of improved quality.

1 tbl, 1 ex

FIELD: pipeline heat insulation in civil and industrial building.

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

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

5 cl, 1 tbl, 1 ex, 3 dwg

Coating material // 2253711

FIELD: paper-and-pulp industry.

SUBSTANCE: invention relates to pigment coating materials suitable in manufacture of coated paper, cardboard, and other cellulose materials. Coating material composition contains aqueous dispersion of pigment, binding agent, fluorescent bleaching substance, and water-soluble polymer. The latter is obtained from water-soluble ethylenically-unsaturated monomer of monomer mixture, contains 90-100 mol % of hydrophilic, mainly nonionic recurring units and 0-10 mol % of anionic recurring units, and is characterized by average molecular mass from 50 000 to 500 000. Invention also discloses coated paper and cardboard products as well as above-indicated water-soluble polymer.

EFFECT: optimized rheological properties of composition and improved optical properties of coating.

10 cl, 13 tbl, 4 ex

FIELD: polymer materials.

SUBSTANCE: composition contains 5-95% of alkali-swelled polymer prepared by stepped nucleus/shell-type polymerization and 95-5% of at least one polyurethane. Composition is suitable as priming in priming/transparent layer system, which is characterized by high mechanical properties, high "flop", good brightness, essentially lack of "penetration", and good waterproofness.

EFFECT: reduced coating drying time and number of layers.

8 cl, 3 tbl, 17 ex

Up!