DESICCANT COMPOSITION CONTAINING SURFACE-MODIFIED POWDERS OF METAL OXIDES USEFUL FOR MANUFACTURE AND PROTECTION OF MOISTURE-SENSITIVE DEVICES

摘要

A desiccant composition is described. The desiccant composition has a polymeric binder and a dispersion of powders of hygroscopic inorganic oxides as desiccant materials, in which the desiccant powders are finely dispersed in consequence of their surface-modification by fatty acid anions without affecting their moisture sorption performances.

主权项

1. Desiccant composition comprising particles of at least one first hygroscopic inorganic oxide and a polymeric binder, said particles having an external surface, characterized in that said particles of at least one first hygroscopic inorganic oxide are functionalized at said external surface by anions of general formula CnH2n+1COO−, wherein n is a integer number greater than 11.