Feb 17 2004
Background
Cyclo-Olefin copolymers are engineering thermoplastics derived from the ring-shaped norbornene molecule. It is in turn made from dicyclopentadiene (DCPD) and ethylene.
Key Properties
Cyclo-Olefins exhibit:
• Glass-like transparency and high light transmittance
• Low dielectric loss
• Low water absorption
• Low outgassing
• Excellent dimensional stability
• High heat resistance
• Good chemical resistance
• Hydrophobic properties
• High melt flow rates allowing precise moulding
• Lower density than glass
Applications
Cyclo-Olefins are used for:
• Light guide panels
• Laptop computer screens
• Contact lenses
• Compact discs
• Barrier sheets in medical applications
• Packaging films and blister packs for medication packaging in which case a layer of cyclo-olefin copolymer may be laminated between layers of polypropylene.
• Bottles such as those used for cosmetic packaging
• Lenses
• Automotive parts
• Industrial parts
Primary author: AZoM.com