Centre National De La Recherche Scientifique

UniversitÉ De Poitiers

Carbios

Pk Med

Frédérique Guillamot

Thierry Ferreira

Philippe Pouletty

Steven Colas

The present invention relates to process for preparing a drug delivery composition comprising the steps of a) preparing a masterbatch comprising a drug and a first polymer by (i) extruding the first polymer, wherein said first polymer has a melting temperature below 140° C.; and (ii) introducing the drug during extrusion of the first polymer, with a drug content between 0.1% and 90%, based on the total weight of the masterbatch; and b) introducing the masterbatch in a polymer-based matrix during production of the drug delivery composition, wherein step a) is performed at a temperature at which the first polymer is in a partially or totally molten state, and step b) is performed at a temperature at which both the first polymer and at least a polymer of the polymer-based matrix are in a partially or totally molten state.

Process for preparing a drug delivery composition

The invention relates to a plastic compound comprising at least one polyolefin and a biological entity that degrades said polyolefin. The invention further relates to a process for preparing a plastic article wherein at least one polyolefin and one biological entity that degrades said polyolefin are mixed at a temperature at which the polyolefin is in a partially or totally molten state.

Plastic compound and preparation process

Growing community of inventors

Gerzat, France

Frédérique Guillamot