Cross-linked methylcellulose microcapsules and process for...

Details Cross-linked methylcellulose microcapsules and process for... Cross-linked methylcellulose microcapsules and process for...

B - Operations, Transporting

01

J

117/46.6

B01J 13/02 (2006.01) B41M 5/00 (2006.01)

Patent

CA 1048352

CROSS-LINKED METHYLCELLULOSE MICROCAPSULES AND PROCESS FOR MAKING ABSTRACT Microcapsules containing an oil are produced using a methylcellulose polymer as a wall-forming material by emulsifying an oil containing an oil soluble cross-linking agent for the methylcellulose polymer in an aqueous solution of the methylcellulose polymer at a temperature below the gelation temperature of the methylcellulose polymer, heating the emulsion to a temperature above the gelation temperature of the methylcellulose polymer and maintaining that temperature until the microcapsule walls are oil and water insoluble. Water soluble cross-linking agents for the methylcellulose polymer may be added to the aqueous solution prior to heating the emulsion.

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