Process for preparing submicron particles in the presence of lip

Details Process for preparing submicron particles in the presence of lip Process for preparing submicron particles in the presence of lip

1994-09-30

1997-09-23

Lovering, Richard D.

Plastic and nonmetallic article shaping or treating: processes

Encapsulating normally liquid material

Liquid encapsulation utilizing an emulsion or dispersion to...

8647, 8649, 106420, 106498, 264 432, 4284022, 42840222, 42840224, B01J 1320, B01J 1312, G03C 1725

Patent

active

056700997

ABSTRACT:
Process for obtaining submicronic particles, for example, pigments in the presence of lipidic vesicles having a lamellar structure, starting with at least one precursor of said particles involves preparing a dispersion of vesicles starting with at least one lipid capable of forming the walls of the vesicles and an aqueous phase E intended to be encapsulated in the said vesicles, and optionally an aqueous phase D, intended to form a dispersion medium of the said vesicles, at least one precursor of the said vesicles being dissolved in phase E and/or D, before and/or during and/or after the preparation of the vesicular phase, at least one agent capable of transforming the said precursor(s) into sought after particles being reacted with it (them) after introduction into the preparation medium.

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