SU992550A1 - Water-soluble paint - Google Patents

Description

(54) JUSTIFIED PAINT

The invention relates to the production of translucent waterborne paints used for painting wood outside and inside rooms (walls, ceilings, doors, windows, stairs, etc.).

A known composition for dyeing wood, comprising a polymeric film-forming agent, pigments, organic solvents and the fungicide tH.

However, coatings based on this composition, having a water resistance, at the same time have insufficient protective properties.

A known composition for the impregnation of wood, including phenol-alcohol, a urea-formaldehyde resin and WED 2.

However, this composition does not provide resistance to wet abrasion, sufficient water resistance and mushroom resistance.

Closest to the proposed technical essence and the achieved result is a water-borne paint comprising a 50% aqueous dispersion of a polymer film-forming agent, a pigment, a filler, an emulsifier, a thickener, a fungicide and water 31.

However, coatings based on this paint have a lower resistance to wet abrasion, reduced water resistance, increased moisture absorption, reduced resistance to plaster to house house mushrooms, and increased drying time.

The purpose of the invention is to improve the zgitsitnyh properties of the coating and increase

10 of its resistance to wet abrasion.

The goal is achieved by the fact that a waterborne paint comprising a 50% aqueous dispersion of a polymer film-forming agent, a pigment, a filler, an emulsifier, a thickener, a fungicide and water, contains as an emulsifier a non-ionic or anionic emulsifier and additionally a mixture of the resin chosen

20 from the group consisting of glyphthalic, pentaphthalic and epoxyether resins, with potassium, sodium or ammonium phosphate, taken in a ratio of 3: 0.1-10: 1, and an organic solvent with the following ratio of components, wt.h.: 50% -a water dispersion of polymer film-forming 100, 0 Pigment1.0-25.0 | 30 Filler 2.0-20.0

.Gerator non-ionic or anionic, 3-2.0 active 0.5-8.0 Liquid thickener 2.0-8.0 Fungicide 60.0-150.0 Water

The mixture of resin with potassium phosphate, sodium

5.0-3.0.0 or ammonium Organic solvent2, 0-30.0 A copolymer of butyl acrylate, methyl methacrylate and methacrylic acid, a copolymer of vinyl acetate and dibutyl maleinate, polyvinyl acetate, etc. are used as the polymer film-forming agent.

any colored pigments are used as a pigment, for example, umber, green phthalocyanine, red iron oxide, etc.

Aluminosilicate, kaolin, mica, aerosil bentonite, etc. are used as fillers.

Sodium carboxymethylcellulose, hydroxyethylcellulose, styromal, polyacrylamide, etc. are used as thickeners.

Dodecyl, thiuram, sodium pentachlorophenol t, phenol derivatives, etc. are used as a fungicide, and white spirit, xylene, and any other as the organic solvent.

The monovalent metal phosphate resin mixture, obtained by mechanical means, is a viscous opaque system of a yellowish-brown color, insoluble in water. Epoxy esters are the product of esterification of epoxy resin E-44 with fatty acids of flax oil.

Example 1. Composition, May, hours: Disperse copolymer of butyl acrylate with methyl methacrylate methacrylic acid (50%) 100.0 Umbra20.0

Phthalocyanine green pigment1, 0

Pigment yellow iron oxide4, 0

Aluminosilicate15.0

Mica5, O

Proxanol2.0

Hydroxyethylcellulose 0.5

Dovetsil8,0

Water60.0

Xylene2.0

Mixture of epoxyether

 potassium phosphate resins

in the ratio of 3: 0.1 to 5.0

Example 2. Composition, ma.h.G Dispersion of a copolymer of vinyl acetate with dibutyl maleinate (50%) 100.0

Ocher18.0

Pigment red iron oxide 3, 0

Kaolin.9.0

Sulfanol1,0

Styromal2,5

White spirit8.0

Xylene - 5.0

Thiuram (tetramethylthiuram disulfide); 2.0

Water82,5

Mixture of glyphthalic resin with sodium phosphate (8: 0.5) 20.0 Example 3. Composition, m.ch .; Polyvinyl dispersion. , plasticized acetate (50%) 100.0 Phthalocyanine green pigment. 1.0

Aerosil2,0

Ethoxylated alkylphenol - (OP-) 0.3

Carboxymethylcellulose (sodium salt) 8.0 Sodium pentachlorophenol 5.0 Water .150.0

White spirit30.0

A mixture of pentaphthalic resin with diammonium phosphate in a ratio of 10: 1 30.0 When resin with potassium, sodium or ammonium phosphate is introduced into the paint in a ratio of 3: 0.1-10: 1 below 5.0, the effect of mushroom resistance of the coating is not achieved, using the indicated mixtures above 30.0 paint f e. stability (significant increase in viscosity).

The technology for producing waterborne paint consists in the manufacture of a semi-finished product, a pigment pass, and then mixing the pigment paste with an aqueous polymer dispersion. Paint application method - brush, roller, spray.

The properties of the coatings on the basis of the proposed paint in comparison with the coatings based on the known inks are presented in the table.

Coatings based on the proposed paint are highly resistant to wet abrasion, to the effects of a filmy house fungus that causes mold and wood rotting, volostness, low moisture absorption, reduced paint consumption and has a significantly shorter drying time.

Claims (3)

Claim Water-borne paint, including a 50% aqueous dispersion of polymer film-forming, pigment, filler, emulsifier, thickener, fungicide and water, characterized in that, in order to improve the protective properties of the coating and increase its resistance to wet abrasion, it contains as an emulsifier, a nonionic or anionic emulsifier and an additional 55 mixture of a resin selected from the group consisting of glyphthalic, pentaphthalic and epoxy ester resins with potassium, sodium or ammonium phosphate, taken in a ratio of 3: 0.1-10: 1, and organic 60 hours sky solvent in the following ratio, wt.h .: 50% water dispersion. This polymer film-forming 100.0 65 Pigment Filler Emulsifier non-ionic or anionic Thickener Fungicide Water Mixture of resin with potassium, sodium or ammonium phosphate Organic sol. 1.0-25.0 2.0-20.0 0.3-2.0 0.5-3.0 2.0-8.0 60.0-150.0 5.0-30.0 Repeater 2.0-30.0