FIELD: chemistry.
SUBSTANCE: invention relates to a polymer powdered composition re-dispersed in water. The powdered polymer composition re-dispersed in water contains one or more anhydrides of fatty acids in amount of 0.1-70 wt % per total weight of the powdered polymer composition. The method of preparing said powdered composition involves drying an aqueous polymer dispersion and a fatty acid anhydride or only the said anhydride in the presence of a protective colloid if necessary. Use of the said powdered composition combined with hydraulically setting binding materials in different areas of the construction industry. The invention is developed in subclaims.
EFFECT: enhancement of hydrophobic properties.
10 cl, 6 ex, 1 tbl
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