Parker Hannifin Corporation (Salt Lake City, UT) has created a medical grade polyurethane that not only displays characteristic polycarbonate resistance to oxidation and alcohol swelling, but also demonstrates expanded resistance to environmental stress cracking.
Developed by the Engineered Polymer Systems (EPS) Division of Parker, the product, called Parker Medical Grade ALC Polyurethane, is aliphatic polycarbonate-based thermoplastic polyurethane designed for use in medical and life science applications.
ALC polyurethanes are non-yellowing, color-matchable, thermoplastic polyurethanes available in clear or radiopaque grades. Characteristics and advantages include: USP Class VI certified; biocompatible and biostable – passes cytotoxicity and indirect hemolysis tests; expanded resistance to chemical attack for better in-body integrity; softens in the body; enhanced reliability and processing consistency over currently available polyurethanes for increased yields; excellent mechanical properties; able to be compounded with custom colorant and radiopaque fillers; manufactured in an ISO-certified clean room environment.
Medical applications for Parker ALC polyurethanes include: vascular access devices; cardiovascular treatment devices; disposable surgical supplies; tracheotomy devices; urological devices; dialysis devices; and feeding tubes.
For more information, visit: www.parker.com 
Parker Hannifin Corporation has created a medical grade polyurethane that not only displays characteristic polycarbonate resistance to oxidation and alcohol swelling, but also demonstrates expanded resistance to environmental stress cracking.