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Sodick Plustech molds Nypro syringe with COC

Cyclic olefin copolymer (COC), a transparent engineering plastic, is targeting replacement of glass in medical syirnges. 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 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.

Sodick Plustech’s injection system uses a two-stage "V-LINE" method for plasticizing and injection. Unlike a conventional in-line reciprocating screw system, the V-LINE plasticizing screw remains stationary during material transfer, minimizing axial wear and ensuring each pellet sees the same heat profile, according to Sodick Plustech.

Sodick Plustech (Booth 363) and Nypro (Booth 4263) will both be exhibiting in the second level of the West Hall at NPE 2012.

Read the full article at PlasticsToday.

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