Abstract: The invention relates to polyether-modified siloxanes which are both superspreading and readily biodegradable. In particular, the invention is directed to a composition including polyether-modified siloxanes of formula (I) MaDbD?c??Formula (I) with M=R13SiO1/2, D=R12SiO2/2, D?=R1R2SiO2/2, where a is 2, b is between 0 and 0.1, c is between 1.0 and 1.15, 0 and 1.05, R1 are independently hydrocarbyl having 1 to 8 carbon atoms, preferably methyl, ethyl, propyl or phenyl radicals, especially preferably methyl radicals, R2 are independently a polyether radical of the formula (II) —R3O[CH2CH2O]m[CH2CH(CH3)O]nR5??Formula (II) where m=3.4 to 11.0, n=2.5 to 8.0, wherein m/n=1.9 to 2.8, and R3 are independently divalent hydrocarbyl radicals having 2 to 8 carbon atoms, and R5 is hydrogen, wherein the polyether-modified siloxanes of formula (I) having a biodegradability of greater than 60%.

Abstract: The invention relates to polyether-modified siloxanes which are both superspreading and readily biodegradable. In particular, the invention is directed to a composition including polyether-modified siloxanes of formula (I) MaDbD?c??Formula (I) with M=R13SiO1/2, D=R12SiO2/2, D?=R1R2SiO2/2, where a is 2, b is between 0 and 0.1, c is between 1.0 and 1.15, 0 and 1.05, R1 are independently hydrocarbyl having 1 to 8 carbon atoms, preferably methyl, ethyl, propyl or phenyl radicals, especially preferably methyl radicals, R2 are independently a polyether radical of the formula (II) —R3O[CH2CH2O]m[CH2CH(CH3)O]nR5??Formula (II) where m=3.4 to 11.0, n=2.5 to 8.0, wherein m/n=1.9 to 2.8, and R3 are independently divalent hydrocarbyl radicals having 2 to 8 carbon atoms, and R5 is hydrogen, wherein the polyether-modified siloxanes of formula (I) having a biodegradability of greater than 60%.

Abstract: The present invention provides a biologically active combination for agricultural applications, comprising A) at least one biocidal, agriculturally acceptable active compound and B) a bioactivator for the active substance according to A) and C) if appropriate, customary auxiliaries and additives, which comprises the use, as bioactivator B), at least one compound of the formula (I) R—C(O)NH—(CH2)a—N+(R1,R2)—(CH2)b—COO—??(I) in which R is a hydrocarbon radical having 6 to 22 carbon atoms, preferably 8 to 18 and in particular 10 to 14 carbon atoms, which is optionally branched and/or contains multiple bonds and/or functional groups, R1, R2 independently of one another are C1-4-alkyl radicals, in particular —CH3, a is 1 to 5, preferably 2 or 3, b is 1 or 2, in an effective concentration.