DE3209151A1 - Process for the production of a coating material - Google Patents

Abstract

The invention relates to a process for the production of a coating material, in particular for coating metals against corrosion, which consists of a coal-tar product and is applied to the base material, and proposes, for the achievement of simplified application and good, permanent protective action, that the coating material is formed from a mixture of amorphous silica, coal-tar pitch, white quartz sand, alumina and a silicone dye and also water, the mixing ratio being in proportion to the material thickness of the base material and the individual base substances mentioned above forming a homogeneous substance corresponding to the layer thickness. A separate application of anticorrosive agents is unnecessary, since this is contained as a coating component (silica).

Description

Process "for" producing a coating composition

The invention relates to a method for producing a coating compound, especially for coating metals against corrosion, based on coal tar.

Other substances such as z. B. Eternit, brickwork, wood or wood-like products, as well as concrete and plastics are protected from the elements.

Coatings have hitherto been used to prevent corrosion in metals brought into use, in which the rust or the corrosion points must be removed mechanically or chemically first must, in order to be able to be coated with a rust preventive and a varnish only then.

In addition, non-metallic materials were used to prevent weather damage these are first provided with a so-called impregnation, after which the corresponding protective lacquer is then applied to this.

As so-called protective varnishes or anti-rust paints were generally Plastic mixtures used, which, however, are relatively limited in their composition and also with deeper and at higher temperatures, or in particular when there is a sharp change in temperature, flake off or soften and dissolve.

The specified means and measures require extensive, time-consuming preparatory work and are therefore expensive and in series production not always applicable.

VNR: 107 212 17 507 Dr. R./P/G 11.3.1982

The task of E rfi η cking - is to specify a method and a product manufactured according to this method, which makes time-consuming preparatory work unnecessary and provides a surprisingly high-quality protective coating.
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This object is achieved by the invention specified in claim 1.

The subclaims are advantageous developments.

The mixture of amorphous silica, coal tar pitch, white Quartz sand, aluminum oxide and a silicone paint as the one mixing component as well as water as a further mixing and adjusting substance produces a coating mass, in which it is no longer necessary before Applying the same to the carrier surface still apply corrosion protection because this is now contained in the coating compound. At most, the support surface only needs to be cleaned thoroughly before applying the coating compound, ideally with it hot water, which is expediently sprayed on. The coating compound can then be applied after drying.

The silicon dioxide in the coating compound is created in the event of corrosion on the support surface, e.g. B. sheet metal or the like, a binding layer which prevents further corrosion, so that special pretreatment of these areas is no longer necessary.

According to the invention, the product is composed of a mixed mass, which are based on amorphous silicon dioxide, coal tar pitch, white quartz sand, aluminum oxide and a silicone paint, and water contains.

VNR: 107 212 17 507 Dr. R./P/G 11.3.1982

The composition of this 'basic' is carried out as possible during heating of the Steinkohlenteerpeches, whereby the individual raw materials are continuously added while stirring. In this way half of the predetermined mixed mass of water is achieved a homogeneous verstreich- or aufrakelbare mixture by the addition of approximately. This is obtained Depending on the amount of water added, an almost fluid coating compound, which can even be sprayed on.

By adding aluminum oxide in small quantities and a silicone paint the desired color of the entire mixture is obtained.

Below are two examples:

1st example:

One possibility of the mixing ratio according to the invention is that a mass of 10-40% by weight, approx. 15-35% by weight coal tar pitch, 1.5-3.8% by weight silicon dioxide and white quartz sand with heating is mixed up to approx. 70 ° C. Aluminum oxide of 2-5% by weight and silicone paint of 3-7% by weight are mixed with approx. 30-60% by weight of water mixed separately when cold.

After the previous mixture has reached a temperature of 70 ° C., the mixture of aluminum oxide, silicone paint and water is added continuously with constant stirring. After homogeneous mixing with simultaneous temperature resistance of 70 ° C for about 1-3 hours, a well-sprayable, colored coating material is obtained.

VNR: 107 212 17 507 Dr.R./P/G 11.3.1982

2nd example:

Amorphous silicon dioxide from 10-30% by weight, white quartz sand from 1-2.5 % By weight, aluminum oxide from 1-3% by weight and silicone paint from 5-6 % By weight are mixed in a dry, cold state and, after thorough mixing with water, liquefied 20-50% by weight, in the up to 70 ° C Warmed coal tar pitch is added while stirring at the same time.

Immediately after feeding the cold mixed substrate into the heated one Coal tar pitch, the heating is stopped, so that a viscous, spreadable coating mass is obtained.

VNR: 107 212 17 507 Dr. R./P/G 11.3.1982

Claims (5)

Johann Tauscher (next person), Josef-Kainzmayergasse 12, A-1220 Vienna PATENT CLAIMS 1. A method for producing a coating compound, in particular for Coating metals against corrosion resulting from a coal tar product and is applied to the base material in a layer thickness in proportion to the thickness of the base material, thereby characterized in that the coating composition consists of a mixture amorphous silica, coal tar pitch, white quartz sand, aluminum oxide and a silicone paint, as well as water, is formed, the mixing ratio being arranged in relation to the material strength of the base material and the individual basic substances listed above form a homogeneous substance according to the layer thickness. 2. The method according to claim 1, characterized in that for the time being Silicon dioxide, coal tar pitch, further quartz sand at one temperature of 70 ° C is mixed homogeneously, while separated the aluminum oxide and the silicone paint and water are mixed with each other cold, then both mixtures with simultaneous heating with each other to homogenize. 3. The method according to claims 1 and 2, characterized in that that amorphous silica, white quartz sand, and alumina Silicone paint mixed dry and then liquefied with water will. VNR: 107 212 17 507 Dr. R./P/G 11.3.1982 4. The method according to claim. .1 "," .CJSdUTzJI -g & indicates that the aluminum ox id is preferably added to the mixture in powder form. 5. Process according to claims 1 to 3, characterized in that Smallest aluminum particles can be added to this mixture can. VNR: 107212. 17 507 Dr. R./P/G 11.3.1982