MEDICAL | INNOVATION
Polyplastics this year launched its Duracon POM (polyoxymethylene or acetal) PM series for medical applications with the commercial availabil- ity of two acetal grades in the new product line. Target applications for the high-performance polyacetal materials include surgical instruments, drug delivery and medical device applications. Materials in the Duracon POM PM portfolio
exhibit excellent slip and wear properties, allow- ing for lower friction and thus more design freedom, especially in moving parts of medical devices and instruments. The materials also show superior heat and moisture durability compared to competing medical material grades. Duracon POM PM can be sterilised under hot steam and ethylene oxide (EtO) sterilisation conditions, the company said. The formulations are designed for global
regulatory compliance including ISO 10993 and USP Class VI biocompatibility/cytotoxicity, FDA Drug Master File (DMF) and Device Master File (MAF), and EU 10/2011 and FDA food contact 21 CFR 177.2470. Polyplastics introduced PM09S01N, a standard viscosity grade that complements the company’s high-purity Topas cyclic olefin copolymer (COC) materials for a range of medical applications. The Duracon POM PM grade delivers the reliable mechanical properties and mouldability expected from POM. It also rolled out PM27S01N, a high-flow grade for drug contact and delivery applications that enables reduced wall thickness, miniaturisation and lower weight for various medical devices that are becoming more complex and highly functional. Röhm expanded its Cyrolite portfolio of polym- ethyl methacrylate (PMMA or acrylic) materials with the introduction of two acrylic-based copolymer compounds at this year’s MD&M West trade show in Anaheim, California, that it says provides a superior balance of properties for medical devices. Cyrolite G-20 CP is a PMMA-based copolymer said to ensure the integrity of photosensitive substances such as oncology drugs, antibiotic, and antifungal agents that require superior UV-light protection. It is designed for use in applications that require UV-light protection in infusion therapy medical devices, including filter housings, luer connectors, needleless connectors, check valves and Y-sites. Typical properties of Cyrolite G-20 CP include five times the impact resistance of unmodified acrylics and excellent processability. The copoly- mer compound is said to offer excellent bonding to PVC tubing and can be thermal bonded, ultrasonic
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or laser welded. It brings good heat resistance and is said to offer resistance to EtO, gamma and E-beam sterilisation, the company says. Röhm also introduced Cyrolite MD zk6, an amorphous, impact modified , thermoplastic compound based on PMMA with high impact resistance, ductility/toughness, and medium heat resistance, and is suitable for the medical device and diagnostics industry. The material can be used in lower melt flow rate applications and is suited for applications including dialysis cassettes, test packs, filter housings, microfluidics, luers, tube connec- tors, IV catheter hubs, and Y sites. Typical properties include three times the
impact resistance of unmodified acrylics, excellent dimensional stability, and improved tensile elongation. The product offers high light transmis- sion with little haze and can be thermal bonded, ultrasonic and laser welded. It forms an excellent bond with PVC tubing. Röhm offers the Cyrolite compounds in formula- tions for injection moulding or extrusion lines with 3-zone general purpose screws.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.arburg.com �
www.braunform.com �
https://hack-formenbau.de �
www.kebo.com �
www.mht-ag.com �
www.sipsolutions.com �
www.sumitomo-shi-demag.us �
www.netstal.com �
www.sabic.com �
www.ineos-styrolution.com �
www.repsol.com �
www.polyplastics.com �
www.roehm.com
September 2023 | INJECTION WORLD 51
Above: Polyplastics has launched its Duracon POM PM series for medical applications
IMAGE: POLYPLASTICS
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