SURFACTANT COMPOSITIONS FOR EXTREME MEDIA, CONTAINING ORGANICALLY MODIFIED HYDROLYSIS-RESISTANT DISILOXANE SURFACTANTS Russian patent published in 2011 - IPC A01N25/30 A61K8/58 C05G3/06 C09D175/04 C09D167/00 C09D163/00 C09D133/04 C11D1/82 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for extreme media used in agriculture, cosmetology and everyday life. The compositions contain a surfactant based on an organosilicon compound of the formula: MM', where M=R¹R²R³SiO_1/2; M'=R⁴R⁵R⁶SiO_1/2; where R¹ is selected from a group consisting of a branched monovalent hydrocarbon radical containing 3-6 carbon atoms, and R⁷, where R⁷ has the formula: R⁸R⁹R¹⁰SiR¹², R⁸, R⁹ and R¹⁰ are each independently selected from monovalent hydrocarbon radicals containing 1-6 carbon atoms and monovalent aryl or alkylaryl hydrocarbon radicals containing 6-13 carbon atoms, and R¹² is a divalent hydrocarbon radical containing 1-3 carbon atoms, R² and R³ are each independently selected from a group of monovalent hydrocarbon radicals containing 1-6 carbon atoms or R¹, with R⁴ in form of alkyl polyalkylene oxide of general formula: R¹³(C₂H₄O)_a(C₃H₆O)_b(C₄H₈O)_cR¹⁴, where R¹³ is a divalent straight or branched hydrocarbon radical, having the structure: -CH₂-CH(R¹⁵)(R¹⁶)_dO-, where R¹⁵ is H or methyl; R¹⁶ is a divalent alkyl radical with 1-6 carbon atoms, where the subscrip d is equal to 0 or 1; R¹⁴ is selected from a group consisting of H, monovalent hydrocarbon radicals with 1-6 carbon atoms and acetyl, where subscripts a, b and c are equal to zero or positive numbers and satisfy the following relationships: 2≤a+b+c ≤20 for a≥2, and R⁵ and R⁶ are each independently selected from a group of monovalent hydrocarbon radicals containing 1-6 carbon atoms or R⁴. The compositions have hydrolysis resistance in a wide pH range.

EFFECT: invention increases hydrolytic stability of the compositions.

65 cl, 21 tbl, 13 ex