| 摘要 |
FIELD: chemistry.SUBSTANCE: group of inventions relates to powder-like composition and to method of its production. Powder-like composition, which does not contain hydrocarbon X and contains as main components a) from 5 to 40 wt % of, at least, one fatty acid derivative and/or fatty alcohol derivative, which are not hydrocarbon X, b) from 0.5 to 10 wt % of, at least, one silicone oil and c) from 20 to 85 wt % of, at least, one substrate material, where components a) and b) were applied on substrate material c). Method of said composition obtaining, includes preliminary mixing of components a) and b), spraying obtained homogenised liquid mixture onto dry component of substrate material c) with obtaining product in form of powder, preferably containing not more than 1 wt % of moisture. Application of said composition as anti-foaming agent for dry mortars. Invention is developed in dependent items of invention formula.EFFECT: improvement of coating quality, obtaining powder-like composition, suitable for application as anti-foaming agent for dry mortars.17 cl, 2 ex, 5 tbl, 1 dwg |
