DE4300319C1 - Water-soluble paint powder for making dispersion paint - contg. EVA and Rugen chalk slurry, which reduces transport cost and is suitable for dispatch in environmentally friendly paper bag or sack - Google Patents

Abstract

Water-soluble paint powder for making dispersion paint contains up to 30% water-soluble EVA copolymer (I), 50-90% 'Rugen' chalk slurry (II), which contains at least 97.5% CaCO3 and has up to 96.5% particles finer than 10 microns, and opt. silicate-carbonate filler, cellulose (III), Ti02, dispersant (IV) and antifoam (V). ADVANTAGE - The powder can be packed and dispatched in paper bags or sacks, which are environmentally friendly, rather than plastics or metal pots, and made up by the end user to a brushable or sprayable paint. It also saves the cost of transporting large quantities of water. In an example a wipe-proof dispersion paint consisted of 80 pts. (I) powder, 40 pts. Ti02, 10 pts. (III), 4 pts. (IV), 2 pts. (V) and 864 pts. (II).

Description

The invention relates to a water-soluble Color powder, from the under For stirring water, an emulsion paint can be prepared. At a In such a color, the ready for use color powder according to the invention in Paper bags or bags are transported. First the end user mixes in a certain ratio Add water and can be a paint or sprayable color produce. In this way one becomes Environmentally friendly packaging in paper bags and paper bags possible and plastic or metal buckets are not required. In addition, from the color manufacturer to Transporting end consumers significantly lower masses, because the considerable proportion by weight of the water is eliminated.

The essential part of the emulsion paint according to the Invention is the so-called. Rügen chalk, where it is in the essential to calcium carbonate. A specification the Rügen chalk used according to the invention follows:

Chemical composition Calcium carbonate (CaCo₃), at least | 97.5% HCl-insoluble, at most 2.0% Fe-III oxide (Fe₂O₃, at most 0.2% Silicon oxide (SiO₂), at most 0.8% Manganese (Mn), at most 0.01% Copper (Cu), at most 0.0001% Sulfur trioxide (SO₃), at most 0.25%

Physical data Humidity, at most | 0.5% density 2.525 g / cm³ bulk mass 0.546 g / cm³ Rüttelmasse 0.883 g / cm³ whiteness 81 PH value 8.4

Grain fraction (after sedimentation analysis with Sartorium balance) (C63) <30 μm | 1.25% 20-30 μm 1.25% 10-20 μm 1.00% 5-10 μm 12.50% 4-5 μm 14.00% 3-4 μm 20.25% 2-3 μm 14.25% 1.5-2 μm 5.50% 0-1.5 μm 30.00%

For the color powder according to the invention becomes a fast water-soluble synthetic resin powder used, it is hereby a dispersion powder of copolymers Vinyl acetate and ethylene. In addition, silicate carbonated filler may be added. It is about a white odorless powder with a particle size of maximum 2%, which are over 400 microns.

Dispersants and defoamers are on the market available and therefore need not be further described here to become.

By adding titanium dioxide, the whiteness of the Color powder can be adjusted. The desired color is achieved by additional pigments during processing. The required amount of water is of the order of  0.5 l to 1000 g dry mix. Below are three Compositions, in parts by weight:

example I

Dispersion paint, smudge-proof

80 parts of synthetic resin powder
40 parts of titanium dioxide
10 parts cellulose
4 parts dispersant
2 parts defoamer
864 parts whiting from Rügen
1000 parts

example II

Emulsion paint, washable

150 parts synthetic resin powder
60 parts titanium dioxide
20 parts cellulose
4 parts dispersant
2 parts defoamer
764 parts whiting from Rügen
1000 parts

example III

Emulsion paint rub resistant, also suitable for exterior painting.

200 parts synthetic resin powder
100 parts of titanium dioxide
10 parts cellulose
4 parts dispersant
2 parts defoamer
100 parts of quartz flour or lime flour
584 parts whiting from Rügen
1000 parts

Claims (1)

Water-soluble paint powder for producing a Emulsion paint, comprising up to 30% of a water-soluble Copolymer of vinyl acetate and ethylene, 50 to 90% complainant Whiting, consisting of at least 97.5% calcium carbonate and a particle distribution whose particles are up to 96.5% are smaller than 10 microns, and if necessary, silicate-carbonatic Filler, cellulose, titanium dioxide, as well as dispersants and Defoamers.