LT5150B - Polymeric latex filler - Google Patents

Abstract

The present invention relates to structural fillers. Polymeric latex filler is useful for smoothing wooden, concrete, plastered, painted and made of gypsum-cardboard inner surfaces prior to painting with distemper, water dispersable, oil and pentaphtalic paint and prior to papering. The polymeric latex filler claimed consists of chalk, binding material, preserving agent, latex, household soap and water. Carboxymethylcellulose is used as a binding material and a preserving agent is added additionally. The ratio of components is as follows (in mass %): Chalk 40-80 Carboxymethylcellulose 0,5-6 Preserving agent 0,5-3 Latex 1-10@Household soap 0,2-0,6 Water up to 100.

Description

1

The invention relates to building fillers. Used for leveling the interior of wooden, concrete, plastered, painted, plasterboard surfaces before painting them with glue, water dispersive, oil and pentaftal paints, as well as before applying wallpaper.

The closest solution to the proposed solution is a putty containing (in parts by weight): chalk 100; latex or urea resin 0.5-8.0; acute soap 0.5-5.0; dry bone adhesive 1,5-5,5; acid synthetic emulsion 1.0-4.5; water 32-52. (See USSR Author No. 587125, C04B 25/02).

The main drawbacks of this putty: badly adhering to the building primer, forming an air-tight film, the wall cannot "breathe", the game does not have elasticity, plasticity.

Interior decoration requires a "breathable" putty. The object of the invention is to improve the adhesion of the building plaster to the glazed surface, the permeability to moisture, to increase elasticity, plasticity, the ease of grinding, to achieve a smooth and smooth surface, good adhesion of the paint.

The objective is achieved by the fact that the latex polymeric putty, consisting of chalk, binder, latex, acrylic soap and water, adds a preservative to the composition by using carboxymethylcellulose as a binder in the following proportions (percentage by weight):

Chalk 40-80 Carboxymethylcellulose 0.5-6 Preservative 0.5-3 Latex 1-10 Thin soap 0.2 - 0.6 Water up to 100 The proposed invention has a fundamental difference. Carboxymethylcellulose is used to increase the adhesion and elasticity of latex polymeric putty. The use of this component not only improves the properties of the putty, provides the desired consistency, but also makes it possible to lower the finished product.

The following materials are used for latex polymeric putty: * chalk - natural crushed or ground chalk.

Chalk takes 40-80% by weight. The introduction of a larger quantity is technologically impossible and smaller is not appropriate. After entering a smaller amount, the coating capacity of the putty is reduced, ie. y. the surface to be covered is coated with a thinner layer, which increases the surface roughness. * Binding agent - carboxymethylcellulose - adhesive. Adhesive joins fill particles with one another, improves the plastic properties of the coating. The optimum range is 0.5 to 6% by weight. In smaller quantities, this effect is not appreciable, and with a significant increase in the amount of glue, the desired properties change slightly, the hardening increases, and the price of the product increases. * preservative Acticide SPX. The preservative extends the shelf life of the putty. It takes 0.5 to 3% by weight. * latex - latex of acrylic styrene copolymer. Latex is an open microstructure that consists of millions of tiny interconnected cells, including air gaps, so it has good air ventilation and humidity control. Latex resistant to deformation and aging, hygienic, antibacterial, antifungal. Latex interacts fill particles with one another, improves the elastic properties of the coating. The optimum range is 1-10% by weight. In smaller quantities, this effect is not appreciable, and with a significant increase in the amount of synthetic latex, the desired properties change slightly and the price of the product increases. * acrylic soap that improves the properties, machining, elasticity and flexibility of putty. The optimum range is 0.2 to 0.6% by weight. In smaller quantities, the desired effect is not achieved, and the amount of elasticity of the putty is greatly impaired.

Examples of latex polymeric putty are shown in Table 1. Table 1

Components of Latex Polymer Putty Components,% by weight, in examples Chalk 40 50 60 70 80 Carboxymethylcellulose 0,5 1,87 3,25 4,63 6 Preservative 0,5 1,13 1,75 2,38 3 Latex 1 3,25 5.5 7.75 10 Soap 0.2 0.3 0.4 0.5 0.6 Water up to 100 to 100 to 100 to 100 to 100 3

LT 5150 B

Latex polymeric putty is produced in the following way: 70 liters of water and 3 kilograms of carboxymethylcellulose - glue are poured into the metal reservoir. The glue is mixed with water until they are completely dissolved. It consists of 3 kg of latex, 2 kg of preservative and 200 grams of soap. Mix well to homogeneous mass. Stir for 10-15 minutes. Afterwards, 130 kilograms of swallows are swallowed. Stir for 10 minutes. After switching off the mixer, the mass is visually inspected. It must be homogeneous, without any foreign mechanical, greasy impurities, without any signs of curdling, and will not layer. The mass is then transferred to the grinder. A white viscous mass is formed. Putty is packed in plastic containers. The container is hermetically sealed with a lid and placed in polyethylene bags and sealed.

The properties of latex polymeric putty are determined by tests. For each putty, for example, take three bases. The surface to be covered must be solid, dry, cleaned of dust, dirt, grease, grease, wax, old paint. The stiff putty does not crack, is solid, easily smoothed, well adhered to the glazed surface. Shrinks well when drying, no cracks. Sanding does not slip from the base, does not burn. Table 2

Sample no. Sliding at 18 ± 2 ° C, cm, Grinding Grinding,% Drying Time, h 1 5.2 0.3 3 2 5.1 0.35 3 3 5.2 0.33 3

The proposed invention improves the adhesion of the latex polymeric putty to the glazed surface, the permeability to moisture, increases elasticity, plasticity, and the ease of grinding. After sanding, the surface to be glazed becomes smooth and smooth, with a good adhesion of paint. Made of ecologically clean materials, non-toxic in production and use.

Pre-priming, to bond old dust, porous surface stones, the surface is primed. Latex polymeric glaze is then added.

Latex polymeric coating can be coated with up to 3 mm continuous layer 2-3 times, for the first time in the vertical direction, then horizontal, and the third - to correct errors. Surfaces to be applied on the day before plaster work must be primed with soap 4

LT 5150 B primer. There must be a 3-hour time interval between drying of the putty layers. This smoothes the roughness of the plaster. It is easier to sand, which reduces the cost of labor and makes it easier to get smooth glaze. It is suitable for plaster coating of plastered cement, lime, gypsum plaster and glazed or paint-based paint for wall repair, plasterboard plasterboarding.

Claims (1)

5 EN 5150 B DEFINITION DEFINITION Latex polymeric putty, consisting of a bar, binder, latex, acrylic soap and water, characterized in that carboxymethylcellulose is used as a binder in addition to a preservative in the composition (percentage by weight): Chalk 40-80 Carboxymethylcellulose 0.5-6 Preservative 0.5-3 Latex 1-10 Thin soap 0.2-0.6 Water to 100