In a demonstration at NPE2012, Sodick Plustech (Schaumburg, IL), a manufacturer of high-precision injection molding machinery, will mold a medical syringe made of cyclic olefin copolymer (COC) in a mold developed by Nypro (Clinton, MA).
The prototype application demonstrates the use of COCs as a replacement for other plastics and glass in syringe applications. Cyclic olefin copolymer is crystal clear with outstanding moisture barrier and dimensional consistency, according to Topas Advanced Polymers (Florence, KY), which is supplying resin for the part.
The Topas COC has a non-polar substrate that does not promote adsorption, denaturation, aggregation, or precipitation. Another benefit compared to competitive materials is a non-ionic, minimally reactive surface. Leachables and extractables are also said to be lower.