DSM Launches New Dyneema Purity® Grade For Medical Implants

The Netherlands-based DSM Dyneema, a subsidiary of life sciences and materials sciences company
Royal DSM NV, has developed Dyneema Purity® TG dtex 25 TS180, a smaller-diameter grade of the
high-performance, ultra-strong polyethylene fiber for biomedical applications that provides the
same level of strength as existing grades.

Targeted for use in smaller, lower-profile biomedical implants for minimally invasive
surgical procedures that can reduce scarring and shorten recuperation times, the new ISO-certified
grade offers very high tensile strength as well as pliability, smoothness, fatigue and abrasion
resistance, and a low friction coefficient, according to the company.

“Today’s minimally invasive procedures demand new instruments, technologies and materials,
particularly thinner and smaller surgical devices and implants,” said Carina Snijder, business
manager medical, DSM Dyneema. “DSM is playing an important role in developing and improving
advanced materials that allow medical device companies to develop more minimally invasive
procedures. Building on our success with Dyneema Purity in ultra-strong orthopedic implants, we are
expanding our portfolio by targeting cardiovascular applications, among others.”

April 15, 2008