PROCESS FOR THE PREPARATION OF METHYLIDENE MALONATE NANOPARTICLES, NANOPARTICLES CONTAINING ONE OR MORE BIOLOGICALLY ACTIVE MOLECULES AND PHARMACEUTICAL COMPOSITIONS CONTAINING SAME

摘要

The invention concerns a method for preparing nanoparticles formed of a statistic polymer of at least one compound of formula (I) in which A represents a group (a) or a group (b); R1 and R2, identical or different, represent a C1-C6 alkyl group linear or branched; n = 1, 2, 3, 4, or 5, characterised in that the monomer is previously made soluble in an organic aprotic solvent miscible in water forming with the polymerisation medium a mixture non-solvent of the formed polymer. The invention also concerns said nanoparticles, containing optionally one or several biologically active molecules, and the pharmaceutical compositions containing them.