Jan Davis Cornelis Tiecken

Title: Jan Davis Cornelis Tiecken: Innovator in Aramid Fibrils

Introduction

Jan Davis Cornelis Tiecken is a notable inventor based in Didam, Netherlands. He has made significant contributions to the field of materials science, particularly in the development of aramid fibrils. His innovative work has led to the creation of a unique patent that addresses specific properties of these fibrils.

Latest Patents

Tiecken holds a patent for aramid fibrils that possess a Canadian Standard Freeness (CSF) value of less than 100 ml in the wet phase. After drying, these fibrils exhibit a specific surface area (SSA) of less than 7 m/g. Additionally, the weight-weighted length for particles longer than 250 µm (WL 0.25) is less than 1.2 mm. The method for preparing these fibrils involves polymerizing an aromatic diamine and an aromatic dicarboxylic acid halide to form an aramid polymer. This process occurs in a mixture of N-methylpyrrolidone or dimethylacetamide and calcium chloride or lithium chloride, resulting in a dope with a polymer concentration of 2 to 6 wt. %. The dope is then converted to fibrils using a jet spin nozzle under a gas stream, followed by coagulation using a coagulation jet.

Career Highlights

Tiecken is associated with Teijin Aramid B.V., where he continues to advance his research and development efforts. His work has been instrumental in enhancing the properties and applications of aramid materials, which are widely used in various industries due to their strength and durability.

Collaborations

Throughout his career, Tiecken has collaborated with esteemed colleagues, including Anton Johannes Josef Hendriks and Harrie Grotendorst. These partnerships have fostered innovation and contributed to the success of his projects.

Conclusion

Jan Davis Cornelis Tiecken is a prominent figure in the field of aramid fibrils, with a patent that showcases his innovative approach to material science. His contributions continue to impact the industry positively.