申请人:Rhodia Operations
公开号:EP3711485A1
公开(公告)日:2020-09-23
A biocidal compositions including a tetrakis(hydroxyalkyl)phosphonium salt biocide, wherein the salt is selected from sulphate, phosphite, bromide, fluoride, chloride, phosphate, carbonate, acetate, formate, citrate, borate, and silicate; a biopenetrant, wherein the biopenetrant includes a polymer of an unsaturated carboxylic acid or a copolymer of an unsaturated carboxylic acid with an unsaturated sulphonic acid, the polymer or copolymer being either terminated by vinylphosphonic acid (VPA) or vinylidene-1, 1-diphosphonic acid (VDPA) or having such monomers incorporated into the polymer backbone; quaternary ammonium cationic surfactant, and an amphoteric surfactant. This composition enhances the biocidal efficacy of the THP salt against both planktonic (free-swimming) and sessile (attached) bacteria and archaea and enhances the efficacy of the THP salt in the dissolution of iron sulphide scale.
一种杀生物剂组合物,包括四(羟基烷基)鏻盐杀生物剂,其中的盐选自硫酸盐、亚磷酸盐、溴化物、氟化物、氯化物、磷酸盐、碳酸盐、乙酸盐、甲酸盐、柠檬酸盐、硼酸盐和硅酸盐;生物杀灭剂,其中生物杀灭剂包括不饱和羧酸聚合物或不饱和羧酸与不饱和磺酸的共聚物,该聚合物或共聚物以乙烯基膦酸(VPA)或亚乙烯基-1,1-二膦酸(VDPA)为末端,或在聚合物骨架中加入此类单体;季铵阳离子表面活性剂和两性表面活性剂。这种组合物增强了 THP 盐对浮游(自由游动)和无柄(附着)细菌和古细菌的杀生功效,并增强了 THP 盐溶解硫化铁垢的功效。