| abstract |
AN ENCAPSULATION PROCESS IS PROVIDED WHEREIN THE SUBSTANCE TO BE ENCAPSULATED IS DISPERSED IN A LIQUID WITH WHICH IT IS SUBSTANTIALLY IMMISCIBLE IN THE PRESENCE OF A TENSIDE CAPABLE OF FORMING A COMPOUND THAT IS INSOLUBLE IN THE DISPERSING LIQUID AND THEREAFTER THE TENSIDE IN THE DISPERSION, WHICH IS IN ASSOCIATION WITH THE SUBSTANCE, IS CONVERTED INTO THE IRREVERSIBLY INSOLUBLE STATE TO ENCAPSULATE THE SUBSTANCE. PARTICULARLY SUITABLE A TENSIDES ARE THE SURFACE-ACTIVE, CROSS-LINKABLE AMINOPLASTS, PREFERABLY SURFACE-ACTIVE, ETHERIFIED METHYLOMELAMINES OR THE CORRESPONDING METHYLOLUREAS. |