Pharmaceutical Tablet Film Coatings | PharmaCentral
The polymer is the film former and the main component on the formulation. The ideal polymer is one capable of producing smooth, thin films that are reproducible under routine coating conditions. The range of materials that can be used as film formers is very wide and covers materials that may be natural, synthetic or semi-synthetic.
Film coating | SEPPIC
The film-coating formulation combines four key ingredients: A film-forming polymer, which provides the mechanical strength of the film. The most widely used polymers in non-functional film coating are cellulose derivatives such as hypromellose. Plasticizers, used to improve the flexibility of the film formed and prevent it from cracking or
Film forming agents
Featured film forming agents for solvent based systems. 1. EFKA PL 5381. Standard epoxy plasticizer which is extraction-resistant to many industrial agents. The migration resistance is comparable with polymeric plasticizers. 2. EFKA PL 5382. Epoxy plasticizer that improves whiteness and resistance to ageing with food contact range.
Understanding Tablet Coating Process | LFA Tablet Presses
Castor oil is primarily used as a base for organic solvent solutions; on the other hand, PEG and PG are commonly used for aqueous coating. External plasticizers must be soluble in the solvent that is used to dissolve the plasticizer and film. The film former and the plasticizer must however achieve at least partial mutual solublity in the solvent.
Plasticizer Excipients | American Pharmaceutical Review
Plasticizers are used mainly for oral solid dosage forms. Plasticizers are added to the polymers used as film forming agents in order to make the polymer pliable and soft, enhancing the flexibility and plasticity of the films.
- Which film forming agents does BASF offer?
- BASF offers film-forming agents including coalescents, open-time prolongers and plasticizers. Our portfolio focuses on highu0002performance and sustainable products with renewable content that are non-phthalate and have lowest-possible VOC emissions in systems ranging from paints to plasters and sealants.
- Why are citrate plasticizers not used in film applications?
- However, citrate plasticizers are highly volatile and a significant amount is lost due to this property. Citrates lack permanency. Hence, they are not employed in resilient applications like cables, flooring, or roofing. They induce more fogging in film applications.
- Why are plasticizers important in biopolymer-based films & coatings production?
- In biopolymer-based films and coatings production, plasticizers are also essential additives since they can improve flexibility and handling of films, maintain integrity and avoid pores and cracks in the polymeric matrix .
- Can bio-based plasticizers replace conventional plastic goods?
- The challenge to implement this new class of natural-based plasticizers matches the increasing interest of material researchers and industries in new bio-based materials, made from renewable resources with the potential, not to totally replace but to reduce the use of conventional plastic goods.
- What are bio-based plasticizers?
- As the name says, biobased plasticizers are majorly based on: Few more plasticizers are based on renewably sourced isosorbides and alkanoic acids. Isosorbide diesters are a non-toxic alternative to phthalates. They offer promising properties to PVC. Being naturally/renewable sourced, bio-based plasticizers are sometimes easily approved for:
- What are biodegradable plasticizers?
- Biodegradable plasticizers such as soybean oil (SO), epoxidized soybean oil (ESO), dibutyl phthalate (DBP) and triethyl citrate (TEC) were added to poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) films, enhancing their thermal and mechanical properties. TEC or DBP presented better plasticizing effects than SO and ESO for PHBV .
