METHOD FOR SYNTHESIS OF AMINOOXYALKYLENE-CONTAINING OLIGOALKOXY SILOXANE AND SELF-EMULSIFYING COMPOSITION BASED ON SAID COMPOUND Russian patent published in 2010 - IPC C08G77/06 C08L83/12 C04B41/49 

FIELD: chemistry.

SUBSTANCE: invention relates to methods for synthesis of organosilicon compounds which self-emulsify in water and compositions based on said compounds. A method is proposed for synthesis of aminooxyalkylene-containing oligoalkoxy siloxane (component A) through hydrolysis of a mixture of organotrialkoxysilanes and an oligoalkoxy siloxane-oligooxyalkylene block-copolymer with mass ratio of reagents equal to (1-9):(0.02-1) in the presence of a 20% HCl solution catalyst and co-condensation of the obtained semi-product with addition of amine-containing organotrialkoxysilanes with subsequent distillation of alcohol and neutralisation of the end reaction product. Proposed also is a self-emulsifying composition for porous construction materials, consisting of components A+B in ratio 1:(1-4), where B is organotrialkoxysilane used in the hydrolysis process as a reagent of the initial mixture.

EFFECT: design of a method of obtaining an amine-containing organosilicon oligomer and preparation of self-emulsifying compositions which form stable emulsions which can provide the necessary depth of penetrating porous construction materials and giving the materials good hydrophobic properties.

2 cl, 3 tbl, 10 ex