A finely divided biocidal substance is maintained very fine and stable in an aqueous suspension over a long period of storage or cyclical storage between low and high temperatures by adding to said aqueous suspension a particle growth inhibitor comprising:
(1) A water-soluble or water-dispersible polymer containing as its essential constituent at least one compound selected from the monomer group consisting of unsaturated carboxylic acids and their derivatives,
(2) A water-soluble or water-dispersible polymer containing styrene sulfonates as its essential constituent, or
(3) A formalin condensate or a salt thereof of sulfonation products of a polycyclic aromatic compound which may contain a hydrocarbon group as a substituent.
在
水悬浮液中加入颗粒生长
抑制剂,可使细小的杀菌物质在长期储存或在低温和高温之间循环储存时保持非常细小和稳定,颗粒生长
抑制剂包括
(1) 一种
水溶性或
水分散性聚合物,其基本成分至少含有一种选自不饱和
羧酸及其衍
生物单体组的化合物、
(2) 以
苯乙烯磺酸盐为主要成分的
水溶性或
水分散性聚合物,或
(3) 多环芳香族化合物磺化产物的
福尔马林缩合物或其盐,该化合物可含有一个烃基作为取代基。