Abstract: The invention relates to producing medicinal agents for treating diabetes. There is proposed a method for producing a pharmaceutical composition containing insulin on a polysaccharide carrier, which involves mixing initial ingredients, wherein there is provided, for mixing, supplying positively charged chitosan sol with pH of 3.5 to 4.5 and negatively charged zinc free insulin, which is taken in the form of a colloidal solution or in the form of nanosized crystalline particles, bringing the pH of the mixed sol to a value of 5.5 to 6.5, producing a gel and dehydrating the produced gel to obtain solid particles, the size of which ranges from 10 to 100 mkm.

Abstract: A carbon graphite material for brushes of electric machines contains ultraphosphates of metals which are sealed by film-forming polymers. The material is impregnated in a mixture of a metal chloride with an aqueous solution of orthophosphoric acid and heat treated to form ultraphosphates of metals evenly distributed throughout the entire volume of the material. The material is then impregnated in a film-forming polymer resin solution, which enhances the contact characteristics of the material, and again heat treated till the resin is fully polymerized. As a result, the ultraphosphates which have formed earlier in the material, are sealed, thus becoming hydrolytically stable; at the same time, the contact characteristics of the material improve generally, the material becoming highly wear resistant, capable of operating within a wide range of temperatures, pressures and humidity.