A biocidal composition is disclosed comprising composite particles, each of said composite particles containing a shell and a core, said core comprising a metal or a metal-containing compound wherein the metal is a moiety selected from the group consisting of zinc, copper, bismuth, silver, zirconium, and combinations thereof said shell comprising a pyrithione adduct comprising the reaction product of pyrithione with a portion of said core metal or metal compound. In one aspect, an anti-fouling composition is disclosed comprising (a) an anti-soft-fouling effective amount of copper pyrithione; and (b) an anti-hard-fouling effective amount of a copper-containing salt, or oxide or hydroxide thereof. The present invention also relates to a method of making an anti-fouling composition comprising particles of copper pyrithione and a copper-containing salt that is effective against hard-fouling and soft-fouling organisms.
本发明公开了一种杀菌组合物,该组合物包含复合颗粒,每个所述复合颗粒包含外壳和内核,所述内核包含
金属或含
金属的化合物,其中
金属为选自
锌、
铜、
铋、
银、
锆及其组合的基团,所述外壳包含
吡啶硫酮加合物,该加合物包含
吡啶硫酮与部分所述内核
金属或
金属化合物的反应产物。在一个方面,本发明公开了一种防污组合物,其包含 (a) 防软污垢有效量的
吡啶硫酮
铜;和 (b) 防硬污垢有效量的含
铜盐、氧化物或氢氧化物。本发明还涉及一种防污组合物的制造方法,该组合物由
吡啶硫酮
铜颗粒和一种含
铜盐组成,可有效防止硬污垢和软污垢
生物。