Process for producing microcapsules

Details Process for producing microcapsules Process for producing microcapsules

1985-11-07

1987-12-08

Lovering, Richard D.

Plastic and nonmetallic article shaping or treating: processes

Encapsulating normally liquid material

Liquid encapsulation utilizing an emulsion or dispersion to...

503215, 424462, 424497, 42721334, 42840222, B01J 1302

Patent

active

047117494

ABSTRACT:
A stable emulsion of microcapsules is obtained by polymerizing at least one water-soluble vinyl monomer in an aqueous solution of an oil-soluble vinyl monomer-maleic anhydride-maleic ester multipolymer to prepare a water-soluble resin, dispersing or emulsifying discrete fine particles of a hydrophobic material in an acidic aqueous solution of the water-soluble resin, adding an amino resin precursor separately prepared to the dispersion or emulsion, and heating the mixture.

REFERENCES:
patent: 4406816 (1983-09-01), Sliwka
patent: 4574110 (1986-03-01), Asano et al.

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