Winfried Dell

Title: Winfried Dell: Innovator in Polyisocyanate Production

Introduction

Winfried Dell is a notable inventor based in Leverkusen, Germany. He has made significant contributions to the field of polyisocyanate production, holding a total of 2 patents. His work focuses on innovative processes that enhance the efficiency and effectiveness of polyisocyanate mixtures.

Latest Patents

Dell's latest patents include a process for the production of polyisocyanate mixtures containing isocyanurate groups and uretdione groups. This invention involves oligomerizing a portion of the isocyanate groups of hexamethylene diisocyanate using specific catalysts, which accelerate the dimerization and trimerization of isocyanate groups. The process is characterized by the removal of unreacted hexamethylene diisocyanate to a residual content of at most 0.5% by weight. Additionally, he has developed a process for the preparation of modified polyisocyanates containing uretdione and isocyanurate groups, which also utilizes organic phosphines as catalysts.

Career Highlights

Winfried Dell has had a distinguished career at Bayer Aktiengesellschaft, where he has been instrumental in advancing the company's research and development in polyisocyanate technology. His innovative approaches have contributed to the company's reputation as a leader in the chemical industry.

Collaborations

Dell has collaborated with notable colleagues such as Werner Kubitza and Dietrich Liebsch. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Winfried Dell's contributions to the field of polyisocyanate production exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of chemical processes and a dedication to advancing technology in the industry.