Ji Hae Park

Title: The Innovative Contributions of Ji Hae Park in Polymer Science

Introduction

Ji Hae Park, an accomplished inventor based in Daejeon, South Korea, has made significant strides in the field of polymer science with his innovative inventions. With a total of two patents to his name, Park's work focuses on advanced biodegradable materials and effective methods of polypropylene production.

Latest Patents

The first of Park's latest patents is a high-viscosity biodegradable aliphatic-aromatic polyester copolymer. This innovative material boasts excellent hydrolysis resistance and high viscosity, which is characterized by a carboxyl end group (CEG) content of 15 mg KOH/g or less. The copolymer also features a specific ratio of z-average to number average molecular weight (Mz/Mn) of 3 to 15, and a melt index (MI) of 5 g/10 min or less, measured under controlled conditions, making it a remarkable development in biodegradable materials. The method provided for its preparation involves the addition of a chain extender and an anti-hydrolysis agent over time, allowing for simultaneous improvements in viscosity and hydrolysis resistance.

Park’s second patent centers on a method for producing polypropylene. This innovative approach reveals an efficient way to create high-strength isotactic polypropylene with increased crystallinity while reducing polymerization time. The process includes the use of a catalyst composition that consists of a Ziegler-Natta catalyst, an external electron donor, dialkylaluminum hydride, and trialkylaluminum, resulting in polypropylene that has a xylene cold soluble content of 3 wt % or less.

Career Highlights

Ji Hae Park has built his career by working with leading companies in the industry, including SK Innovation Co., Ltd. and SK Geo Centric Co., Ltd. His contributions have been instrumental in advancing the capabilities and applications of biodegradable materials and polypropylene, reflecting his innovative mindset and technical expertise.

Collaborations

Throughout his professional journey, Park has collaborated with talented coworkers in his field, including Hyo Seung Park and Hyeong Min Kim. These partnerships have allowed for the exchange of ideas and the development of cutting-edge technologies that propel the polymer industry forward.

Conclusion

As an inventor, Ji Hae Park's contributions to polymer science are noteworthy, showcasing his dedication to developing sustainable materials and efficient manufacturing processes. His patents provide a foundation for further innovations in biodegradable polymers and high-strength polypropylene, marking him as a significant figure in the landscape of modern invention.