Process and systems for the efficient production of...

B - Operations – Transporting – 29 – B

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B29B 9/10 (2006.01)

Patent

CA 2557199

Processes and systems are provided whereby continuous polymeric microspheres are made by nebulizing a solventless initiated monomeric liquid (18) (that is a liquid solution comprising a monomer and a polymerization initiator for the monomer) to form an aerosol of polymerization-initiated monomeric liquid droplets (14) within a gas-filled reaction zone (12). The nebulized droplets of the monomeric liquid are allowed to fall under gravitational force through the reaction zone and to polymerize therewithin. The thus polymerized particles may thereafter be collected and removed from the reaction zone for further processing and/or use as may be desired.

L'invention concerne un procédé et un système de production de microsphères polymères continues par nébulisation d'un liquide monomère à déclenchement sans solvant (18) (une solution liquide contenant un monomère et un déclencheur de polymérisation pour le monomère) pour obtenir un aérosol de gouttelettes de liquide monomère déclenchées par polymérisation (14) dans une zone de réaction remplie de gaz (12). Ainsi, les gouttelettes nébulisées du liquide monomère tombent, sous l'effet de la gravité, dans la zone de réaction et se polymérisent. Les particules ainsi polymérisées peuvent ensuite être recueillies et déplacées de la zone de réaction pour subir un traitement ultérieur et/ou utilisées selon les besoins.

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