NOVEL WATER-IN-OIL MICROENCAPSULATION PROCESS AND MICROCAPSULES PRODUCED THEREBY

A suspension of microcapsules in an organic liquid, the microcapsules containing an aqueous phase, is produced by interfacial polymerization in the presence of a proton transfer catalyst of a water-in- coil emulsion in which the aqueous phase contains a urea/formaldehyde or melamine/formaldehyde pre...

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Bibliographische Detailangaben
Hauptverfasser: SCHER, HERBERT BENSON, RODSON, MARIUS
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:A suspension of microcapsules in an organic liquid, the microcapsules containing an aqueous phase, is produced by interfacial polymerization in the presence of a proton transfer catalyst of a water-in- coil emulsion in which the aqueous phase contains a urea/formaldehyde or melamine/formaldehyde prepolymer.