BACTERICIDAL COMPOSITIONS Russian patent published in 2018 - IPC A01N25/30 A01N43/80 A61P1/00 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine, namely to disinfectology, and is designed to suppress the growth of aquatic life and fauna microorganisms or higher forms. Aqueous bactericidal composition comprises (a) 1.5 % by weight of a 5-chloro-2-methyl-4-isothiazoline-3-one and 2-methyl-4-isothiazoline-3-one mixture and (b) 5 % by weight of a non-ionic surfactant containing C₈alkyl group, 5 moles of propyleneoxide polymerized links and 9 moles of polymerized ethylene oxide links, wherein the said mixture and said non-ionic surfactant weight ratio is 1:3.3. Synergistic bactericidal composition is also provided comprising (a) a mixture of 5-chloro-2-methyl-4-isothiazoline-3-one and 2-methyl-4-isothiazoline-3-one and (b) non-ionic surfactant structures RO(CH₂CH(CH₃)O)_x(CH₂CH₂O)_yH, where R is C₈ an alkyl group, x is 5, and y is 9, wherein the said mixture and said non-ionic surfactant weight ratio is 1:3.3.

EFFECT: use of a group of inventions makes it possible to increase the growth of microorganisms suppressing and controlling efficiency.

7 cl, 7 tbl, 12 ex