Company Filing History:
Years Active: 2008-2009
Title: Mijeung Hong: Innovator in Polycarbonate Resin Technology
Introduction
Mijeung Hong is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of polymer chemistry, particularly in the development of polycarbonate resins. With a total of 3 patents to his name, his work has advanced the understanding and application of these materials in various industries.
Latest Patents
Mijeung Hong's latest patents include innovative methods for preparing polycarbonate resins. One notable patent is a method of preparing a polycarbonate resin that boasts improved thermal stability. This method involves mixing polycarbonate with hydroxy terminal groups and an end terminator at normal temperature and pressure, followed by a melt reaction at 250-320°C under reduced pressure. This process effectively reduces the concentration of hydroxy terminal groups in the final polycarbonate resin.
Another significant patent is a method for producing modified polycarbonate using a spray-crystallizing method. This approach includes a melt condensation polymerization process, where transesterification and quick condensation polymerization are performed sequentially. The method allows for solid state polymerization without the need for additional drying, milling, or fractionation processes, thereby reducing operational time and costs. Furthermore, it enables efficient control over the crystallinity and size of the modified polycarbonate particles, resulting in a high-molecular weight product with uniform physical properties.
Career Highlights
Mijeung Hong is currently employed at LG Chem, Ltd., a leading chemical company known for its innovative solutions in materials science. His work at LG Chem has positioned him as a key player in the development of advanced polycarbonate materials.
Collaborations
Mijeung has collaborated with notable colleagues, including Jong Hun Kim and Sung Kyou Park. Their combined expertise has contributed to the successful development of new technologies in the field of polymer chemistry.
Conclusion
Mijeung Hong's contributions to polycarbonate resin technology demonstrate his innovative spirit and commitment to advancing materials science. His patents reflect a deep understanding of polymer chemistry and its applications, making him a valuable asset in the industry.