12.10.2016 • NewsDSMDyneemaElaine Burridge

DSM Dyneema Wins Aramid Fiber Patent Case

DSM Dyneema, a subsidiary of Dutch chemical producer DSM, has defended a challenge in the European Patent Office (EPO) from local rival Teijin Aramid relating to its ultra-strong Dyneema fiber. Arnhem-headquartered Teijin Aramid, which makes high-strength fibers Twaron, Technora and Sulfron, challenged the EPO’s grant of a patent to DSM Dyneema that covered pressed products based on specific improved unidirectional (UD) systems. These systems are typically designed and used in high-end armor applications such as helmets, inserts and vehicle protection.

At an oral hearing in The Hague on Sept. 15, DSM convinced the EPO that the patent covering one of its key innovations should be maintained. As a result, the EPO dismissed the opposition and DSM’’s patent remains in force. DSM said its technology is aimed at pressed products with improved performance at higher temperatures, while still maintaining good performance at ambient temperature.

Virtual Event

Digitalization in the Chemical Industry
CHEManager Spotlight

Digitalization in the Chemical Industry

Save the Date: October 22, 2025
The event will be promoted to a combined audience of over 100,000 professionals across Europe through the CHEManager and CITplus networks.

Free Expert Insights

Dual‑Targeting Breakthroughs
Advancements in Bispecific Antibody Development

Dual‑Targeting Breakthroughs

Unlock the latest breakthroughs in bispecific antibody development! Download Wiley’s free Expert Insights eBook to explore cutting-edge dual-targeting strategies, advanced purification methods, and bioanalytical technologies transforming immunotherapy and cancer treatment.

most read