The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2024
Filed:
Jul. 25, 2018
PK Med Sas, Paris, FR;
Philippe Pouletty, Paris, FR;
Frédérique Guillamot, Gerzat, FR;
PK MED, Paris, FR;
Abstract
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.