OLIGOMETHYL-ALKYL (METHYLHYDROXY) (METHYLHYDROPEROXY) SILOXANES AS ANTISTRUCTURING ADDITIVES AND VULCANISING AGENTS FOR SILOXANE CAOUTCHOUCS AND METHOD OF THEIR PRODUCTION Russian patent published in 2008 - IPC C08G77/16 C08K5/5419 

FIELD: chemistry.

SUBSTANCE: invention relates to silicon-organic compounds, which can be used as anti-structuring additives and vulcanising agents in siloxane rubber mixtures. Oligomethyl-alkyl(methylhydroxy)(methylhydroperoxy)siloxanes are suggested its general formula: (CH₃)₃SiO[CH₃RSiO]_n[CH₃(OH)SiO]_m[CH₃(OOH)SiO]_l[Si(CH₃)₃, where R=CH₃-; CF₃CH₂CH₂-; C₆H₅-, 10≤m+1+n≤200, m<0.5(m+1+n), 1=(0.1-0.25)m, obtained by boiling during 0.5-3 hours in medium of polar solvent of appropriate hydride-containing oligosiloxanes with water hydrogen peroxide, taken in 1.1-5-fold molar excess relative to bind Si-H, in presence of catalytic amounts (0.1-1% mol of binds Si-H) of tertiary amine. Method of production is simple, is notable for high reproducibility of final product properties.

EFFECT: creation of simple and efficient method of production of olygosiloxanes, able to be used simultaneously as anti-structuring additive and vulcanising agent in rubber mixtures, ensuring high physicomechanical properties of vulcanisers and long term of mixture preservation in raw state, and elaboration of method of their production.

2 cl, 1 tbl, 5 ex