Jen-Chun Chang

Title: Innovations of Inventor Jen-Chun Chang

Introduction

Jen-Chun Chang is a notable inventor based in Chiayi, Taiwan. He has made significant contributions to the field of chemical engineering, particularly in the synthesis of various compounds. With a total of six patents to his name, Chang's work focuses on improving production processes through innovative methods.

Latest Patents

One of his latest patents is a method of synthesizing polyol acetate using a catalyst of ionic liquid heteropoly acid. This invention utilizes a nitrogen-containing organic compound that reacts with an alkyl sultone to produce a zwitterion compound. The zwitterion compound is then reacted with a heteropoly acid to create an ionic liquid HPA, which is used for the acetylation of polyol and HOAc to obtain polyol acetate. This method addresses issues related to product separation, waste acid handling, and facility corrosion, thereby enhancing production efficiency through green catalysis.

Another significant patent by Chang is the method of producing diethylene-glycol tert-butyl ether using isobutylene and diethylene glycol. This process employs an acidic cation exchanged resin as a catalyst and involves two stages of vacuum distillations to yield highly selective and pure diethylene-glycol tert-butyl ether. Additionally, a byproduct of diethylene-glycol di-tert-butyl ether can be recycled, further optimizing the production process.

Career Highlights

Throughout his career, Jen-Chun Chang has worked with prominent companies such as Benq Corporation and Chinese Petroleum Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Chang has collaborated with several professionals in his field, including Ming-Yu Huang and Jann-Chen Lin. These partnerships have facilitated the exchange of ideas and fostered advancements in their respective areas of expertise.

Conclusion

Jen-Chun Chang's innovative approaches to chemical synthesis have led to significant advancements in production methods. His contributions continue to impact the industry positively, showcasing the importance of creativity and collaboration in scientific research.