公开(公告)号：EP1383855A1

公开(公告)日：2004-01-28

申请号：EP02740767.5

申请日：2002-04-25

申请人： Dow Corning Corporation

发明人： MICHEL, Bertrand ,  DESCAMPS, Pierre ,  NACHON, Guzman ,  CREUTZ, Serge, Firmin, Alain ,  STASSEN, Sophie

IPC分类号： C11D3/00 ,  B01J2/00

CPC分类号： B01J2/006 ,  C11D3/10 ,  C11D11/0088 ,  C11D17/0039

摘要： In an agglomeration process for the preparation of granules encapsulating a hydrophobic active material, the active material and a molten binder which has a melting point above ambient temperature are sprayed onto water soluble carrier particles while agitating the particles. A liquid which interacts exothermically with the carrier particles is sprayed onto the carrier particles separately from and just before or simultaneously with the active material and binder, so that the heat generated by the interaction reduces the cooling rate of the binder during the agglomeration process. For example the liquid can be water when the carrier particles have a positive heat of hydration and/or solution by water.

摘要翻译： 在用于制备包封疏水性活性材料的颗粒的凝聚法中，将活性材料和具有高于环境温度的熔点的熔融粘合剂喷雾到水溶性载体颗粒上，同时搅动颗粒。 与载体颗粒发生放热相互作用的液体与活性材料和粘合剂分开并且在活性材料和粘合剂之前或同时与载体颗粒发生相互作用，从而相互作用所产生的热量在聚集过程中降低了粘合剂的冷却速率。 例如，当载体颗粒具有正水合热和/或水溶液时，液体可以是水。