Yeong-Ho Chang

Title: Yeong-Ho Chang: Innovator in Powder Coating Technologies

Introduction

Yeong-Ho Chang is a prominent inventor based in Kingsport, TN (US), known for his significant contributions to the field of powder coating technologies. With a total of 11 patents to his name, Chang has developed innovative solutions that enhance the performance and durability of coatings.

Latest Patents

Among his latest patents, Chang has disclosed thermosetting powder coating compositions that comprise a blend of semi-crystalline and amorphous polyesters. These compositions include certain adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate, which are readily curable at temperatures and times commonly used for powder coatings. When subjected to equivalent curing conditions, these coating compositions exhibit a higher degree of cross-linking compared to combinations of amorphous polyesters alone. Another notable invention is the development of weatherable thermosetting powder coatings based on an all-aliphatic polyester. This polyester is comprised of residues from various cyclohexanedicarboxylic acids and 2,6-decahydronaphthalene dimethanol, resulting in coatings that demonstrate superior weatherability.

Career Highlights

Throughout his career, Yeong-Ho Chang has worked with reputable companies such as Eastman Kodak Company and Eastman Chemical Company. His experience in these organizations has allowed him to refine his expertise in the field of coatings and materials science.

Collaborations

Chang has collaborated with notable colleagues, including Waylon Lewellyn Jenkins and Robert Boyd Barbee. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Yeong-Ho Chang's innovative work in powder coating technologies has made a significant impact in the industry. His patents reflect a commitment to enhancing the performance and durability of coatings, showcasing his expertise and dedication to innovation.