申请人:HODOGAYA CHEMICAL CO LTD
公开号:EP0788740A1
公开(公告)日:1997-08-13
A stable aqueous suspension of composite particles each including a core formed from a solid or liquid particle and a coating layer formed on the core particle and including at least one high molecular weight surfactant compound having an average molecular weight of 1100 or more and at least one low molecular weight surfactant compound having an average molecular weight of 1100 or less and at least 400 below the average molecular weight of the high molecular weight surfactant compound and optionally a suspension stabilizer, is produced by subjecting a particulate solid substance or a liquid substance to a suspending treatment in an aqueous medium containing the above-mentioned high and low molecular weight surfactant compounds, and optionally the suspension stabilizer.
一种稳定的复合微粒水悬浮液,每个复合微粒包括由固体或液体微粒形成的核心和在核心微粒上形成的包衣层,包衣层包括至少一种平均分子量为 1100 或更高的高分子量表面活性剂化合物和至少一种平均分子量为 1100 或更低且至少比高分子量表面活性剂化合物的平均分子量低 400 的低分子量表面活性剂化合物,以及可选的悬浮液稳定剂、将颗粒状固体物质或液体物质在含有上述高、低分子量表面活性剂化合物和悬浮稳定剂的水介质中进行悬浮处理而制得。