PROCEDURE FOR MICROENCAPSULATION, USES OF POLYMERS PREPARED ACCORDING TO THIS PROCEDURE AND COMPOSITIONS CONTAINING POLYMERS PREPARED BY THIS PROCEDURE.

摘要

A PROCEDURE FOR ENCAPSULATING A WIDE VARIETY OF MATERIALS, INCLUDING HYDROPHILIC AND HYDROPHOBIC MATERIALS, USES THE CONDENSATION OF TWO REACTIVE COMPOUNDS TO FORM SHELLS AROUND DROPS / PARTICLES IN A NUCLEATED PHASE, INCLUDING ONE OF THE REACTIVE COMPOUNDS HAS AT LEAST TWO ACTIVE METHYLENE FUNCTION GROUPS PER MOLECULA, THE OTHER IS AN ACTIVE METHYLENE REACTIVE CROSSLINKING AGENT. ANY OF THE REACTIVE COMPOUNDS CAN BE DISPERSED IN THE CONTINUOUS PHASE, THE OTHER BEING DISPERSIBLE IN THE NUCLEATED PHASE. APPLICATIONS INCLUDE MACROENCAPSULATION FOR CONTROLLED RELEASE OF CHEMICALS AND BIOCIDES IN AGRICULTURE.