Disclosed herein is a process for the preparation of a stable sustained-release biocidal composition containing microencapsulated biocide and wherein the process comprises the steps of: (i) adsorbing the biocide onto an inert carrier by grinding to attain the required particle size and wherein the ratio of biocide; inert carrier is in the range of about 1:99 to about 99:1 (ii) optionally coating with an appropriate amine or imine compound or a water resistant film forming polymer and dispersing the resultant biocide encapsulated inert carrier in an aqueous medium in the presence of suitable dispersing agent (iii) adding at least one thickening agent to re-disperse the encapsulated biocide containing partial amount of non-encapsulated biocide if any and (iv) preparing an aqueous or solvent based sustained release biocide dispersion. Also disclosed is a stable, sustained-release biocidal composition prepared by such process and uses thereof.
本文揭示了一种制备稳定的持续释放
生物杀菌剂组合物的方法,其中包含微囊化
生物杀菌剂,所述方法包括以下步骤:(i)通过研磨将
生物杀菌剂吸附到惰性载体上,以达到所需的粒径,其中
生物杀菌剂;惰性载体的比例在约1:99至约99:1的范围内;(ii)可选地用适当的胺或
亚胺化合物或耐
水膜形成聚合物进行包覆,并在适当的分散剂存在下将所得的
生物杀菌剂微囊化惰性载体分散在
水性介质中;(iii)添加至少一种
增稠剂以重新分散含有任何非微囊化
生物杀菌剂的微囊化
生物杀菌剂,(iv)制备基于
水性或溶剂的持续释放
生物杀菌剂分散液。还揭示了通过这种方法制备的稳定的持续释放
生物杀菌剂组合物及其用途。