A method for protecting a medium from attack by micro-organisms by addition of a biocide containing an aromatic ring carrying a thiocyanate and a carbamoyl group in ortho-relationship to each other. Also claimed is the biocide in which either the ring system or the carbamoyl group carries another substituent. The biocide is parti- oularly useful in aqueous media such as cooling water, paper mill liquor, aqueous oil emulsions and water-based paints or paint films derived therefrom.
一种保护介质不受微
生物侵蚀的方法,方法是加入一种杀菌剂,该杀菌剂含有一个芳香环,环上带有相互正交的
硫氰酸基和
氨基甲酰基。此外,该杀菌剂的环系或
氨基甲酰基还带有另一个取代基。该杀菌剂部分适用于
水性介质,如冷却
水、造纸液、
水性油乳剂和
水性涂料或由此产生的漆膜。