SU39901A1 - Lacquer manufacturing method - Google Patents

Description

The present invention relates to a method for producing high quality asphalt insulating varnishes without the use of gilsonite.

In search of replacement of imported gilsonite, it was proposed to use various domestic natural bitumens, for example, Kashpirskiy, Shugurovskiy Kupra, etc. It was also proposed to use purified Kairovskiy asphalt for this purpose. However, the aforementioned bitumens are used to a very small extent in the paintwork technology due to the complexity of the equipment necessary for cleaning natural bitumens, and also because the varnishes prepared on these bitumens did not meet all the technical requirements for insulation varnishes. .

The author of the present invention proposes a method for producing asphalt lacquers using natural as raw materials. Kairovsky asphalt. The method consists in that Kairovskaya bitumen (raw) together with the rock is subjected to heat treatment with flax oil in the usual way. The introduction of other components of petroleum pitch, rosin, rubber products, etc., and combining them leads

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To obtain a whole series of asphalt insulating varnishes with very valuable properties.

The high qualities of lacquers manufactured by the proposed method, the simultaneous combination of opposite properties in them, such as fast drying and heat resistance, make it easier to create new designs of electric trolleys and apparatuses, and the use of imported materials ensures their widespread use in the electrical industry, automotive, , paint industry and other branches of the national economy.

Example 1 (getting quick-drying enamel). The boiler load 44.1 in. h. flax oil and 2.9 in. of lead rubber, heat, and after dissolving the desiccant, the chemical asphalt is introduced into the water (in order to avoid any foaming). Heating is continued under per-stirring until the temperature rises (210 °), after which it is charged 5 c. h. rosin and II c. h. stearin pitch. Cooking is carried out for one hour at a temperature of 260 °, air is blown through, after which the temperature is raised to 300 ° and continue to be boiled until a homogeneous mass is obtained. When mass

in the boiler will begin to thicken noticeably, heating is stopped and unloaded

in hot condition the mass, which after cooling is crushed (crushed) and poured with benzene {140 -.o) and white spirit (- ± 0 o) with vigorous stirring. The resulting composition is settled on the day after which it is filtered through gauze, allowed to stand another 2–3 before, and again filtered through gauze.

Example 2 (permeable impulse varnish). L; lacquer preparations take flaxseed oil 61 g; h, Kairovsky asphalt 30 c. h., Krasnodar bitumen (100) 11 E. h ,, rosin a. h. and lead siglsativa 3 in. h

The method of preparation is not significantly different from that specified in example 1. The diluents are the same — white spirit and benzene.

Application: impregnation of cloths and so on. hot (drying at 100 - 105).

Example 3. For the preparation of varnish

take crude oil 60 к. ч., Kairovsky asphalt 25 в. hours, paraffin 1.5 in. hours, manganese-lead-lime siccative 3.5 in. hours and Krasnodar bitumen 10 in. h

The white spirit is introduced at a temperature of 165 °, after which benzene is added at a temperature of 100 °.

Pr meper 4 (matt nocrine varnish). Waste (filter residues) at the floor of the varnish is passed through the floor;; upon receipt of a homogeneous mass of diluted with benzene and white spirit; proportion is one part of waste for two parts of solvents.

The subject matter of the invention.

A method of making asphalt lacquers from the usual ingredients used for this, characterized in that. that raw Kirov asphalt is used as a raw material.