Method for releasing an active principle contained in a...

B - Operations – Transporting – 01 – J

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B01J 13/00 (2006.01) A61K 9/113 (2006.01) B01D 17/04 (2006.01) B01F 3/08 (2006.01) C08L 95/00 (2006.01)

Patent

CA 2267083

The invention concerns a method for the controlled release of an active principle contained in a multiple water-in-oil-in-water emulsion characterised in that: said multiple emulsion comprises an invert emulsion Ei with a aqueous phase A1 containing at least a hydrophilic active principle, said emulsion Ei being dispersed in the form of direct emulsion droplets Ed, in a continuous aqueous phase A2, with the two emulsions Ed and Ei stabilised by at least a surfactant, present in their respective continuous phases; and said multiple emulsion is brought in the presence of an effective amount of an agent for transforming it into a direct emulsion and induce the release of the active principle, contained in the aqueous phase A1 of emulsion Ei, in the aqueous phase A2.

La présente invention se rapporte à un procédé pour libérer de manière contrôlée un principe actif contenu dans une émulsion multiple de type eau dans huile dans eau caractérisé en ce que: ladite émulsion multiple comprend une émulsion inverse Ei avec une phase aqueuse A1 qui contient au moins un principe actif hydrophile ladite émulsion Ei étant dispersée sous forme de gouttelettes d'émulsion directe Ed, dans une phase continue aqueuse A2, avec les deux émulsions Ed et Ei stabilisées par au moins un agent de surface, présent au niveau de leurs phases continues respectives et en ce que ladite émulsion multiple est mise en présence d'une quantité suffisante d'un agent, de manière à la transformer en une émulsion directe et à induire la libération du principe actif, contenu dans la phase aqueuse A1 de l'émulsion Ei, dans la phase.aqueuse A2.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method for releasing an active principle contained in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for releasing an active principle contained in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for releasing an active principle contained in a... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1597332

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.