Composition for coating and its preparation

 

(57) Abstract:

Usage: paint industry, in particular dispersion composition for priming, painting and painting of surfaces of concrete, wood, metal and other inventive composition for coating and its preparation by combining, wt.%: latex of a synthetic polymer selected from the group of butadiene copolymer, methyl methacrylate and methacrylic acid, copolymer of butadiene, styrene and methacrylic acid, a copolymer of butyl acrylate, methyl methacrylate and methacrylic acid, a copolymer of butyl acrylate, styrene and methacrylic acid and 3.0 - 30,0 with water - the rest is up to 15,0 - 50,0% concentration, the introduction when mixing the alkaline agent is 0.05 to 2.0, further combining the mixture with pigment of 0.01 - 35,0, the filler is 0.1 - 70,0, additional alkaline agent is 0.05 - 2.0 to achieve the viscosity of the composition is 0.2 - 2x103Pass., the composition may additionally contain a thickener of 0.1 - 2.0, antifreeze 0,01 -10,0 and antiseptic 0.1 to 5.0. 2 S. and 6 C. p. F.-ly, 1 table.

The invention relates to a paint and varnish materials, bonding agents and primers used for coating on the surface of the building, porous fibreboard is to use the construction as a filler for leveling the surface of the concrete, wood, metal and other building materials, as well as for their coloration.

Known composition for coatings based on 33 38% latex of copolymer of butadiene, Acrylonitrile and methacrylic acid in a ratio of monomers 58,3:39,0:2.7 in combination with pigments, fillers, surface-active agent and a thickener [1] Obtained on the basis of the coating is resistant to mechanical damage, namely, chips, abrasive action, but are only used as the outer coating of the individual pre-painted surfaces of the body of the vehicle. In addition, the technology of obtaining this coverage is relatively complex, requires special training.

The closest in technical essence and the achieved result to the proposed composition is a composition for coating comprising an acrylic binder, pigment, filler, ammonia, water [2]

The disadvantages of the known compositions for coating is low and the durability of the coating, in particular low light and weather resistance.

Technology of production of known composition is the following.

Mix acrylic binder, filler and in the 6.0 butadiene copolymer, Acrylonitrile and methacrylic acid with a ratio of monomers 20 -60:10 40:30 40 and mol.m. 104105type in a solution of ammonia in an amount of 0.1 -5,0 to obtain a pH of 6.9 to 8.0, emulsol-based mineral oils, then the filler and pigment in a ratio of components.

A method of obtaining the composition is insufficient technological, has a low quality dispersion and homogeneity of the structure resulting mixture requires the use of expensive mineral oils.

The technical purpose of this invention to provide compositions for coatings with high wear-resistant properties, light fastness and durability, and the way of obtaining a short milling, adaptability and relative nedorogovizny.

The technical result is achieved in that the composition for coating comprising a latex of a synthetic polymer, a pigment, a filler, an alkaline agent and water, characterized in that as a synthetic polymer latex contains latex selected from the group of a copolymer of butadiene, methyl methacrylate and methacrylic acid, copolymer of butadiene, styrene and methacrylic acid, a copolymer of butyl acrylate, IU the s 30 -70:0,1 67:3 60 and with a pH of 3.0 to 5.0, as the alkaline agent 10 25% aqueous solution of ammonium carbonate or soda, or ammonia, in the following ratio, wt.

Latex is a synthetic polymer selected from the group of: butadiene copolymer, methyl methacrylate and methacrylic acid, copolymer of butadiene, styrene and methacrylic acid, a copolymer of butyl acrylate, methyl methacrylate and methacrylic acid, a copolymer of butyl acrylate, styrene and methacrylic acid with a ratio of monomers 30 70:0,1 67:3:60 and with a pH of 3.0 to 5.0 (in terms of dry substance) 3,0 30,0

The filler is 0.1 70,0

The pigment is 0.01 35,0

10 25% aqueous solution of ammonium carbonate or soda, or ammonia 0,1 4,0

Water the rest

In addition, the introduction of its thickener in an amount of 0.1 - 2.0 wt.

In addition, it is possible to introduce in its antifreeze composition in an amount of 0.01 - 10.0 wt.

In addition, the introduction of its antiseptic composition in an amount of 0.1 - 0.5 wt.

The song get on the following technology: a way of getting by dilution of a synthetic polymer latex water injection when mixing the alkaline agent, the subsequent combining the mixture with pigment and a filler, characterized in that l is TA and methacrylic acid, or copolymer of butadiene, styrene and methacrylic acid, or a copolymer of butyl acrylate, methyl methacrylate and methacrylic acid, or a copolymer of butyl acrylate, styrene and methacrylic acid with a pH of 3.0 to 5.0, the dilution of the latex with water is carried out until 15 50% concentration, and as the alkaline agent used 10 -25% aqueous solution of ammonium carbonate or soda, or ammonia, which is injected in two stages, with the first stage enter in the amount of 0.05 to 2.0 wt. to obtain a pH of 6.5 to 7.0, and in the second stage it is introduced after combining the mixture with pigment and filler in the amount of 0.05 to 2.0 wt. to achieve the viscosity of the composition is 0.2 - 2x103Pas, in the following ratio, wt.

The above latex of a synthetic polymer (in terms of dry substance) 3,0 30,0

The pigment is 0.01 35,0

The filler is 0.1 70,0

10 25% aqueous solution of ammonium carbonate, or soda, or ammonia - 0,1 4,0

Water the rest

In addition, before the second stage of the introduction of the alkaline agent, the introduction of thickener in an amount of 0.1 to 2.0 wt.

In addition, before the second stage of the introduction of the alkaline agent, the introduction of antifreeze in an amount of 0.01 to 10.0 wt.

In addition, before the second stage of the introduction the Oia has a high performance, in particular, resistance to soap, water, oil, etc.

Composition with a low content of water of up to 33% has a pasty consistency, allowing its use as a filler building materials.

A composition containing more than 33% of water, can be used as a primer or paint.

In the composition for coating use:

as pigment: titanium dioxide various brands, zinc oxide, yellow iron oxide pigment, etc.

as filler: chalk, talc, kaolin, etc.

as thickener: liquid glass, acetylcellulose etc.

as antifreeze: ethylene glycol, sodium tripolyphosphate etc.

as an antiseptic: urea resin, glutaraldehyde, etc.,

The properties and composition shown in the table.

The invention meets the criterion of industrial applicability, as feasible using known materials and technologies, as well as means of production.

1. Composition for coating comprising a latex of a synthetic polymer, a pigment, a filler, an alkali agent and water, characterized in that the quality is of relata and methacrylic acid, a copolymer of butadiene, styrene and methacrylic acid, a copolymer of butyl acrylate, methyl methacrylate and methacrylic acid or a copolymer of butyl acrylate, styrene and methacrylic acid as well as alkaline agent 10 to 25% solution of ammonium carbonate, or soda, or ammonia, in the following ratio, wt.

Latex is a synthetic polymer selected from the group of: a copolymer of butadiene, methyl methacrylate and methacrylic acid, a copolymer of butyl acrylate, methyl methacrylate and methacrylic acid, a copolymer of butadiene, styrene and methacrylic acid, a copolymer of butyl acrylate styrene and methacrylic acid (in terms of dry substance) 3,0 30,0

The pigment is 0.01 35,0

The filler is 0.1 70,0

10 25% solution of ammonium carbonate, or soda, or ammonia 0,1 4,0

Water the Rest

2. Composition for coating under item 1, characterized in that it further comprises a thickener in an amount of 0.1 to 2.0 wt.

3. Composition for coating under item 1 or 2, characterized in that it additionally contains antifreeze in an amount of 0.01 to 10.0 wt.

4. Composition for coating under item 1, 2 or 3, characterized in that it further comprises a preservative in an amount of 0.1 to 0.5 wt.

5. The way recip is the so called alkaline agent, subsequent combining the mixture with pigment and a filler, characterized in that as a synthetic polymer latex uses latex selected from the group of: a copolymer of butadiene, methyl methacrylate and methacrylic acid, a copolymer of butadiene, styrene and methacrylic acid, a copolymer of butyl acrylate methyl methacrylate and methacrylic acid, a copolymer of butyl acrylate, styrene and methacrylic acid, the dilution of the latex with water is carried out until 15 50% concentration, as the alkaline agent used 10 25% aqueous solution of ammonium carbonate, or soda, or ammonia, which is injected in two stages, at the 1st stage it is introduced in a quantity of 0.05 to 2.0 wt. to obtain a pH of 6.5 to 7.0, and at stage 2 it is introduced after combining the mixture with pigment and filler in the amount of 0.05 to 2.0 wt. to achieve the viscosity of the composition is 0.2 2103A pass in the following ratio, wt.

Latex is a synthetic polymer selected from the group of: a copolymer of butadiene, methyl methacrylate and methacrylic acid, a copolymer of butadiene, styrene and methacrylic acid, a copolymer of butyl acrylate, methyl methacrylate and methacrylic acid, a copolymer of butyl acrylate, styrene and methacrylic acid (in terms of dry ve the ammonia 0,1 4,0

Water the Rest

6. A method of obtaining a composition for coating on p. 5, characterized in that before the 2nd stage of the introduction of the alkaline agent addition with stirring enter a thickener in an amount of 0.1 to 2.0 wt.

7. A method of obtaining a composition for coating under item 5 or 6, characterized in that before the 2nd stage of the introduction of the alkaline agent addition with stirring injected antifreeze in an amount of 0.01 to 10.0 wt.

8. A method of obtaining a composition for coating on PP.5, 6 or 7, characterized in that before the 2nd stage of the introduction of the alkaline agent, optionally under stirring enter a preservative in an amount of 0.1 to 0.5 wt.

 

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