Method for producing microcapsules.

摘要

Processes are described for forming microcapsules having discrete capsule walls. An emulsion of an oily core material phase is formed in a continuous aqueous phase. The oily core material phase includes isocyanatoacrylate or cyanoacrylate pre-wall reactants which react with the aqueous phase to form a pre-wall material around the oily core material phase. Particles of the oily core material phase are either enwrapped in an amine-formaldehyde condensation product produced by in situ condensation of an amine and formaldehyde, or in a polyurea shell wall formed by polycondensation of isocyanatoacrylate reactant.