Joong Ki Lee

Title: Innovations of Joong Ki Lee in Recycled Materials

Introduction

Joong Ki Lee is a notable inventor based in Seongnam-si, South Korea. He has made significant contributions to the field of recycled materials, holding 6 patents that focus on innovative methods for utilizing waste copolyester. His work is pivotal in advancing sustainable practices in material science.

Latest Patents

One of Joong Ki Lee's latest patents is a method for preparing a recycled material using waste copolyester. This method involves several steps: first, depolymerizing a waste copolyester to obtain a first reactant; second, removing impurities from the first reactant to yield a second reactant; third, distilling the second reactant to produce a third reactant containing crude recycled bis-2-hydroxyethyl terephthalate and a fourth reactant containing a recycled diol-ester; and finally, mixing the third reactant with an aqueous solvent and recrystallizing it to obtain a fifth reactant containing recycled bis-2-hydroxyethyl terephthalate and a filtrate. Another significant patent is for a polyester resin that uses recycled bis(2-hydroxyethyl) terephthalate. This resin is derived from the depolymerization of waste polyester and is designed to maintain quality comparable to that of original resins, making it suitable for manufacturing various articles.

Career Highlights

Joong Ki Lee is currently associated with Sk Chemicals Co., Ltd., where he continues to innovate in the field of recycled materials. His work not only contributes to the company's goals but also aligns with global sustainability efforts.

Collaborations

Joong Ki Lee collaborates with talented individuals such as Ji-Hun Kim and Kwang-Woo Park, enhancing the innovative capacity of his projects.

Conclusion

Joong Ki Lee's contributions to the field of recycled materials through his patents demonstrate his commitment to sustainability and innovation. His work is essential in paving the way for future advancements in material science.