sentences:  This newer material is used in a wide variety of applications including packaging films, lenses, vials, displays, and medical devices.In 2005 there were "several types of commercial cyclic olefin copolymers based on different types of cyclic monomers and polymerization methods.Cyclic olefin copolymers are produced by chain copolymerization of cyclic monomers such as 8,9,10-trinorborn-2-ene (norbornene) or 1,2,3,4,4a,5,8,8a-octahydro-1,4