A clear non-crystalline copolymer with moisture-proof characteristics
TOPAS® COC (cyclic olefin copolymer) is a glass-clear and extremely pure plastic for healthcare, packaging, and electronics applications. From insulin delivery, to food contact films, to tablet and smartphone components, TOPAS COC is the high performance material of choice. The broad global regulatory compliance of TOPAS COC can make your next development a simpler task.
TOPAS COC is developed by our subsidiary TOPAS Advanced Polymers GmbH and sold by Polyplastics in the Americas, Japan and Asia Pacific.
- Transparency / gloss
- High rigidity
- Easy-to-cut characteristics
- Water vapor barrier
- Heat resistant
- High heat moldability
- Dead-fold properties
- Suitable for medical and
- Suitable for medicine packaging
COC resin TOPAS® is a high quality and highly pure amorphous cyclic olefin resin by our original metallocene catalyst technique.
In the medical field including medical equipment and inspection diagnosis jigs, etc., with strict demand criteria, TOPAS offers optimal characteristics and cost performance as an alternative material for high quality and high cost quartz glass and PDMS (polydimethylsiloxane), etc.
COC resin TOPAS is used for a wide range of applications as a high functional packaging material due to superior properties including a high moisture barrier property, an aroma retaining property, and dead fold characteristics, etc.
In addition, TOPAS is superior especially in compatibility with LLDPE, can be blended at a desired ratio, and used as a modifier of PE.
Raw ingredients and production method
TOPAS® is a cyclo olefin copolymer (COC) copolymerized from norbornene and ethylene using a metallocene catalyst.
Comonomer content determines the deflection temperature under load, so TOPAS® COC grades with high cyclic olefin content have higher heat resistances.
List of leading grades