Published On: Sat, Aug 6th, 2016

Topas highlights expanded applications of cyclic olefin copolymers at K 2016

Topas Advanced Polymers will focus on the expanded adoption of cyclic olefin copolymers (COC) in a broad range of end-use applications at K 2016.

TOPAS COC continues to find strong appeal in the healthcare industry (drug delivery and blisters/trays) and diagnostics (POC/PCR/microfluidics). In addition, it has been identified as a highly effective alternative to Barex polyacrylonitrile (PAN) in a wide range of pharmaceutical packages such as medicinal pouches and patches and other applications such as food and cosmetics that require strong chemical resistance and adsorption.

plastic polymer industry

Topas highlights expanded applications of cyclic olefin copolymers at K 2016

“We continue to work closely with OEMs and processors on new solutions to create next-generation products,” said Timothy Kneale, President of Topas Advanced Polymers. “The unique attributes of TOPAS COC – purity, drug compatibility, transparency, biocompatibility, and dimensional stability – are finding their way into demanding, high performance end uses.”

Kneale noted that TOPAS COC resins are being employed in wearable drug delivery devices for medications such as insulin and pain medicines. The material enables consistent, reproducible dosing and facilitates miniaturization of drug delivery systems.

In diagnostic products such as microfluidics and microplates, TOPAS COC delivers superior chemical resistance and UV transparency compared to competitive thermoplastics like polystyrene (PS) and polypropylene (PP), while being much easier to manufacture in volume via simple injection molding compared to alternatives like glass and silicones, according to the company.

With 92% clarity and mold detail of TOPAS COC, well counts are maximized, flow channels can be incorporated, and analyses are optimized.

Due to its ultra-high purity, TOPAS COC has lower leachables and extractables than competing materials, resulting in the most reliable and repeatable results. The inert nature of the material prevents interference with reactions and analyses.

As a commercial alternative to Barex PAN in pharmaceutical packages, Kneale analyzed, “PAN and COC come from the opposite ends of the polymer spectrum but they offer similar properties when it comes to barrier/permeation performance and strong chemical resistance.”

While not a one-for-one replacement for PAN, COC delivers effective chemical resistance and low adsorption rates with medical-grade chemical contents such as nicotine for patches. COC’s adsorption of nicotine is less than that of glycol-modified polyethylene terephthalate (PETG) and ethylene vinyl alcohol (EVOH).

Packaging processors and end users value the shrink, thermoforming, dead-fold, heat resistance, moisture barrier, and easy-opening characteristics of films incorporating TOPAS COC, the company noted. Key applications include shrink labels and films, easy tear packaging, formed or gas-filled protective packaging, cellophane-like twist films, and cosmetics and bottles.

In optical components, TOPAS COC is closer to glass than any other polymer. The high clarity, high flow polymer has a proven record in light guides, automotive heads-up displays (HUDs) and sensor lenses, and touch screens (ITO film).

<p>In electronics, COC’s heat resistance, moisture insensitivity, lightweight, and dielectric performance make it attractive for advanced electronic design in mobile device antennas, as well as high performance capacitors.

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