Multi-stage method for producing gas-filled microcapsules

Details Multi-stage method for producing gas-filled microcapsules Multi-stage method for producing gas-filled microcapsules

A - Human Necessities

61

K

A61K 49/00 (2006.01) A61K 9/50 (2006.01) A61K 49/22 (2006.01) B01J 13/02 (2006.01)

Patent

CA 2373869

The invention relates to a multi-stage method for producing gas-filled microcapsules. In one stage of the method, the substance that forms the coat is polymerized. The microcapsules are formed in a physically and/or temporally separate stage, by means of a structuring process. The polymerization is carried out with moderate stirring, while the microcapsules are structured in dispersing conditions.

Procédé à plusieurs phases pour la production de microcapsules emplies de gaz. Lors d'une phase dudit procédé a lieu la polymérisation de la substance formant enveloppe et lors d'une phase séparée dans l'espace et/ou dans le temps, les microcapsules sont formées grâce à un processus de structuration. Tandis que la polymérisation est effectuée dans des conditions d'agitation modérée, la structuration des microcapsules se produit dans des conditions de dispersion.

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