Klaus Nothhelfer

Title: Innovations of Klaus Nothhelfer

Introduction

Klaus Nothhelfer is a notable inventor based in Thusis, Switzerland. He has made significant contributions to the field of polymer chemistry, particularly in the development of copolyesters. With a total of 2 patents to his name, Nothhelfer's work has had a considerable impact on the industry.

Latest Patents

Nothhelfer's latest patents include a process for preparing linear copolyesters containing omega-hydrocarboxylic acid units. This innovative process involves adding lactones to a polyester melt, which contains at least 90 mol % polyethylene terephthalate units. The method allows for the production of copolyesters that maintain the viscosity of the starting polyesters while incorporating omega-hydroxycarboxylic acid units into the polymer chains. Another significant patent is the condensation injection molding process for producing bottle preforms from polyethylene terephthalate and its copolyesters. This process selectively introduces inert gas into the polyester melt, ensuring a low acetaldehyde content and achieving the desired intrinsic viscosity.

Career Highlights

Klaus Nothhelfer is currently associated with Ems Inventa AG, where he continues to innovate in the field of polymer technology. His expertise in polyester processing has positioned him as a key figure in the development of advanced materials.

Collaborations

Throughout his career, Nothhelfer has collaborated with esteemed colleagues such as Werner Stibal and Werner Kaegi. These partnerships have fostered a collaborative environment that enhances innovation and research in their field.

Conclusion

Klaus Nothhelfer's contributions to polymer chemistry and his innovative patents demonstrate his commitment to advancing technology in the industry. His work continues to influence the development of new materials and processes, solidifying his reputation as a leading inventor.