METHOD OF PRODUCING YTTRIUM-CONTAINING ORGANOALUMINOXANES, BINDING AND IMPREGNATING MATERIALS BASED THEREON Russian patent published in 2012 - IPC C07F5/06 C07F5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing yttrium-containing organoaluminoxanes of general formula: [(R**O)_sY(OH)_tO_r]_k·[Al(OR)_I(OR*)_x(OH)_zO_y]_m, where k, m=3-12; s+t+2r=3; 1+x+2y+z=3; R-C_nH_2n+1, n=2-4; R*-C(CH₃)=CHC(O)C_nH_2n+1; C(CH₃)=CHC(O) OC_nH_2n+1; R** -C(CH₃)=CHC(O)CH₃ The method involves reaction of an organolaluminium compound of general formula: AIL₃, where L - C_nH_2n+1 C_nH_2n+1O, (C_nH_2n+1)₂AlO[(C_nH_2n+1)AlO]_t, where n=1-4, t=2-10, with a chelating agent in form of a compound of formula R*OH, where R* denotes C(CH₃)=CHC(O)C_nH_2n+1; C(CH₃)=CHC(O)OC_nH_2n+1, and a hydrate of yttrium acetylacetonate {[CH₃(O)CCH=C(CH₃)O]₃Y-2,5H₂O} with alcohol in the medium of an organic solvent at 0-150°C Binding and impregnating compositions are also disclosed.

EFFECT: obtained compounds are used to prepare binding and impregnating compositions for obtaining chemically resistant, high-strength aluminium-yttrium oxide protective coatings and ceramic composites

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