In pharmaceutical coatings, plasticizers are used to allow initial film forming and to achieve the right amount of film flexibility to avoid cracking and peel-off. We offer you a comprehensive selection of pharma plasticizers with trusted functional performance.
Plasticizers for coating formulations – functional solutions from BASF
Plasticizers are a common requirement for many pharmaceutical coatings. Except for 3rd-generation coating polymers like Kollicoat® IR, where the plasticizer is already integrated into the molecule structure, a plasticizer is added to the coating spray formulation to achieve the right film flexibility.
Primary targets of plasticizing process
The plasticizing process aims at two primary targets:
- It reduces the glass transition temperature of the film forming polymer to allow the coating process to take place at reasonable temperatures.
- It prevents cracks in and consequent peel-off of the film during storage, which would harm both its functionality and its appeal to the patient.