Josien Krijgsman

Title: Josien Krijgsman: Innovator in Flame-Retardant Polyamide Compositions

Introduction

Josien Krijgsman is a notable inventor based in Echt, Netherlands. She has made significant contributions to the field of polymer chemistry, particularly in the development of flame-retardant materials. With a total of 6 patents to her name, Krijgsman continues to push the boundaries of innovation in her industry.

Latest Patents

Krijgsman's latest patents include a flame-retardant polyamide composition. This invention relates to a polyamide with a melting temperature higher than 265°C, which incorporates ammeline and/or ammelide. These compounds are obtainable through a biocatalytic process from melamine in an aqueous reaction mixture that includes a biocatalyst. The process effectively converts melamine into ammeline and optionally further into ammelide.

Another significant patent involves a process for producing a thermoplastic polymer containing segments of a diamide. This process includes several steps, starting with preparing a reaction mixture comprising a diamine and a diester of a dicarboxylic acid. The mixture is then heated to specific temperatures in the presence of a catalyst, followed by optional steps to quench the catalyst and add further components to produce the desired thermoplastic polymer.

Career Highlights

Krijgsman is currently employed at DSM IP Assets B.V., where she applies her expertise in polymer science to develop innovative materials. Her work has been instrumental in advancing the field of flame-retardant polymers, making them safer and more effective for various applications.

Collaborations

Throughout her career, Krijgsman has collaborated with talented individuals such as Corstiaan Johannes Hooft and Marnix Van Gurp. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Josien Krijgsman is a pioneering inventor whose work in flame-retardant polyamide compositions and thermoplastic polymers has made a significant impact in her field. Her innovative spirit and dedication to research continue to inspire advancements in polymer chemistry.