Method of making impermeable microcapsules
AssigneeKanzaki Paper Manufacturing Co., Ltd.
InventorsHiroshi Iwasaki, Shigeo Okamoto, Mitsuru Kondo
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Abstract
The method of making impermeable microcapsules comprises the steps of preparing an aqueous dispersion of microcapsules having a capsule wall of a water-insoluble polyamine-epoxy resin and adding to the aqueous dispersion an electrolyte to dehydrate the microcapsules.
Claims5
A method for making impermeable microcapsules comprising the steps of preparing coacervates by complex coacervation between a cationic polyamine-epoxy resin and an anionic colloid material, curing by heating to form microcapsules each having a capsule wall of irreversibly hardened and water insoluble polyamine-epoxy resin, preparing an aqueous dispersion of said microcapsules and adding to said aqueous dispersion an electrolyte to dehydrate said microcapsules.
Dependencies are inferred from the claim text.