Company Filing History:
Years Active: 1995
Title: Yeon-Ho Chang: Innovator in Powder Coating Technology
Introduction
Yeon-Ho Chang is a notable inventor based in Kingsport, TN (US). He has made significant contributions to the field of powder coating technology, particularly in developing coatings with enhanced UV resistance. His innovative work has led to the creation of a patented formulation that addresses critical performance requirements in the industry.
Latest Patents
Yeon-Ho Chang holds a patent for a powder coating that exhibits excellent UV resistance. The patent describes thermosetting powder coatings based on a resin derived from dimethyl 2,6-decalindicarboxylate and neopentyl glycol. This resin can be modified with other diacids or diols while maintaining a suitable glass transition temperature (Tg) essential for effective powder coatings. The aliphatic polyester developed by Chang meets the basic Tg requirements and provides outstanding weatherability. The polyester resin has a number average molecular weight (Mn) ranging from about 1,500 to about 10,000, a glass transition temperature (Tg) between approximately 45°C to 100°C, and a hydroxyl or acid number from about 20 to about 100.
Career Highlights
Yeon-Ho Chang is currently employed at Eastman Chemical Company, where he continues to advance his research in polymer technology. His work has not only contributed to the company's portfolio but has also enhanced the performance characteristics of powder coatings in various applications.
Collaborations
Some of Yeon-Ho Chang's coworkers include Robert Boyd Barbee and Brian S Phillips. Their collaborative efforts have likely played a role in the development and refinement of innovative coating solutions.
Conclusion
Yeon-Ho Chang's contributions to powder coating technology exemplify the impact of innovation in material science. His patented work on UV-resistant coatings demonstrates a commitment to enhancing product performance and durability.