WEB EXCLUSIVE: BASF AG (U.S. office in Wyandotte, Mich.) brought out three new engineering resin grades for medical components.
•Ultraform N2320 003 PRO is a new injection molding grade of acetal with a higher viscosity for thick-walled components that require high mechanical strength. Its high impact strength and stiffness are suited to highly stressed functional parts in insulin pens, atomizing devices, and dry-powder inhalers.
•Ultraform H4320 PRO is an acetal tailored for high-speed extrusion of semi-finished shapes, especially thick-walled products. It has even higher viscosity than the current Ultraform N grade and has higher impact strength while being very stiff and strong. It also boasts good thermal stability. Target applications are plug-in connectors, handles of surgical instruments, and other short-run parts that are made from semi-finished shapes.
•Ultradur B4520 PRO is BASF’s first PBT for medical injection molding. Its shrinkage behavior has been optimized for the strict dimensional accuracy requirements of medical devices. It has very low water absorption, is very chemical resistant, is easy to print on, and can be sterilized with gamma radiation or ethylene oxide.
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