This inventor holds 5 USPTO granted patents. Top assignee: Bayer Aktiengesellschaft. Active years: 1976-1988.
Company Filing History:
Years Active: 1976-1988
Title: Roland Nast: Innovator in Oligoester Production
Introduction
Roland Nast is a notable inventor based in Dormagen, Germany. He has made significant contributions to the field of chemical engineering, particularly in the production of oligoesters. With a total of 5 patents to his name, his work has had a considerable impact on the industry.
Latest Patents
Nast's latest patents focus on innovative processes for the production of oligoesters containing hydroxy groups. One of his key inventions involves a method for creating oligoesters with an OH number ranging from 200 to 600 mg KOH/g. This process entails reacting a cyclic dicarboxylic acid anhydride, free of halogens, with a polyfunctional alcohol or dialkanolamine at specific molar ratios and temperatures. The resulting dicarboxylic acid semiester or semiamide is then alkoxylated with ethylene oxide and/or propylene oxide in the presence of a catalyst. The equivalent ratio of acid groups to alkylene oxide groups is carefully controlled to achieve the desired properties. Furthermore, the resultant oligoester can be reacted with a polyisocyanate, optionally incorporating known additives.
Career Highlights
Roland Nast is currently employed at Bayer Aktiengesellschaft, where he continues to advance his research and development efforts. His work has been instrumental in enhancing the production processes of various chemical compounds, particularly in the field of oligoesters.
Collaborations
Nast has collaborated with several esteemed colleagues, including Pramod Gupta and Hanns P Muller. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Roland Nast's contributions to the field of chemical engineering, particularly in the production of oligoesters, highlight his role as a significant inventor. His innovative processes and collaborations continue to influence the industry positively.