FIELD: chemistry.
SUBSTANCE: invention relates to method of obtaining composite particles, which consists in condensation of one or several silicon compounds of general formula (RO)nSiR1 4-n (1), in which R stands for optionally substituted alkyl or aryl residue with 1-20 carbon atoms or hydrogen atom, R1 stands for optionally substituted hydrocarbon residue or hydrogen atom and n stands for number from 1 to 4, or one or several products of its condensation in presence of solvent or mixture of solvents and one or several soluble polymers. As soluble polymers used are polymers of vinyl esters with 6-15 wt % of ethylene-unsaturated carboxylic acids and optionally 0.3-2 wt % of ethylene unsaturated silanes, polymers of vinyl esters with 0.3-2 wt % of ethylene unsaturated silanes, polymers of (met) acrylates with 6-15 wt % of ethylene unsaturated carboxylic acids and optionally 0.3-2 wt % of ethylene unsaturated silanes or polymers of (met)acrylates with 0.3-2 wt % of ethylene unsaturated silanes. Soluble polymers at temperature within the range from 1 to 100°C and at pH within the range from 2 to 12 are soluble in amount at least 1 g per litre of solvent or mixture of solvents. Thereof obtained products of condensation of silicon compounds are fixed on one or several soluble polymers.
EFFECT: invention ensures obtaining composite particles, which possess stability in storage in dispersion form.
12 cl, 9 ex
