SU2011A1 - Lacquer preparation method - Google Patents

Description

When oil distillates are oxidized by air, depending on the oxidation conditions, temperature, the amount of air blown, as well as the nature of the catalyst, one or another amount of petroleum acids is obtained, with various properties.

The author has found that by oxidizing oil distillates of oil, under the action of humid air and at a temperature of 120-160 ° C, a mixture of acids is obtained from neutral oil distillates, which are liberated by washing with alkali, and the soaps are decomposed by acid. Mineral-acid washed and dried petroleum acids are a thick, sticky mass that dissolves in alcohol but does not dissolve completely in gasoline. Gasoline-insoluble acids are, by their nature, high molecular weight hydroxy acids.

The acids extracted from the oxidized distillate, which were applied in a thin layer on a glass or metal plate in a sprinkling solution, give an elastic, soft, dry film when heated, but of insufficient strength to be used for the technique.

The author of the report said that if acids obtained from oil distillates by air oxidation add liquid condensation products of phenols with aldehydes (salirethin resin), the mixture forms a lacquer suitable for impregnation of paper, wood, cellulose, asbestos for electrical purposes, so is it also for the impregnation upon heating made by pressing various insulating objects of fibrous and porous substances.

PRI me R. Tsest.llat Balakhani oil beats. at. 0.900 was oxidized by blowing humid air at a temperature of 150-160 ° C for 60 hours. After oxidation, the distillate was washed with Ilea, oil was extracted from the resulting soap with gasoline, the soap, cleared of oil, decomposed by 20o boric acid, petroleum acids1 1 were washed with water and washed off from water with sulfuric acid.

Saliretin resin was prepared as follows. 100 pieces of technical tricresol (zhi.dkoy

40

carbolic acid) with 100

Formalin and 1% benzenesulphonic acid were heated under reflux of the formation of saliretin resin, and the water began to separate. After the formation of slyly, heating was stopped and 50–56 parts of the mass cooled down; 50 parts of the trap of petroleum acids were filled in; after the tyggeal mix, vanilla from Aiacci) iodine was removed as usual. The resulting liquid mass, dissolved in alcohol or other solvents, may serve as a varnish for all kinds of technical substances. At what film formation occurs when .leiKO.w is heated.

For a compound with the indicated not ((t py.mp.acid.mi. It may not only be saliretin resin, obtained by condensation with acidic acid chromatography, such as benzene sulphioic acid, but also with -) such katas.: as calcium phyloidum ill. bari, for which the last condensation time is taken from 2 to 10%.

irg; dm,;.,.

AGENT l.

The method of preparation of varnish, distinguished by the fact that the salpretypic resin, obtained by condensation of phenols with aldehydes, is mixed with acids. obtaining, elimy olemlepie. m nef n1 / x 1Gli other heavy oils x hydriodn 1x oils.