Purna Chand Sishta

Title: Purna Chand Sishta: Innovator in Polymerization Technology

Introduction

Purna Chand Sishta is a notable inventor based in Whitehouse, NJ (US). He has made significant contributions to the field of polymer chemistry, particularly in the development of catalysts for olefin polymerization. With a total of 4 patents to his name, his work has had a substantial impact on the industry.

Latest Patents

Among his latest patents is a process for the preparation of polyethylene or polypropylene. This invention relates to an olefin polymerization catalyst composition that exhibits increased activity. The process involves the polymerization of olefins in the presence of an activated catalyst composition. This composition comprises a single site catalyst precursor and an activating cocatalyst. The innovative aspect of this process is that it allows for the contacting of the single site catalyst precursor with an activating cocatalyst outside of a polymerization reactor. This can occur before, during, or after the precursor is contacted with a weakly coordinating electron donor that does not substantially polymerize during either contacting.

Career Highlights

Purna Chand Sishta has been associated with Union Carbide Chemicals & Plastics Technology Corporation, where he has applied his expertise in polymer chemistry. His work has contributed to advancements in the efficiency and effectiveness of polymer production processes.

Collaborations

Throughout his career, Purna has collaborated with esteemed colleagues such as Frederick John Karol and John Henry Oskam. These collaborations have further enriched his research and development efforts in the field of polymerization.

Conclusion

Purna Chand Sishta's innovative work in polymer chemistry and his contributions to olefin polymerization technology highlight his importance as an inventor. His patents reflect a commitment to advancing the field and improving industrial processes.