Wally Liyuan Chang

Title: Wally Liyuan Chang: Innovator in Flame Retardant Polyesters

Introduction

Wally Liyuan Chang is a notable inventor based in White Plains, NY (US). He has made significant contributions to the field of materials science, particularly in the development of flame retardant polyesters and polyurethanes. With a total of 3 patents, his work has had a considerable impact on various industries.

Latest Patents

Chang's latest patents include innovative solutions such as flame retardant and auto-catalytic polyesters for polyurethanes. These flame retardant polyesters are created by reacting an aromatic or aliphatic dicarboxylic acid and/or ester of anhydride with an aliphatic polyol or mixtures thereof, along with melamine. Additionally, he has developed methods for producing these polyesters. Another significant patent focuses on semiflexible and flexible polyurethane foams that exhibit low fogging characteristics and improved physical properties.

Career Highlights

Throughout his career, Wally Liyuan Chang has worked with several prominent companies. Notably, he has been associated with Ck Witco Corporation and Coim Asia Pacific Pte. Ltd. His experience in these organizations has contributed to his expertise in polymer chemistry and materials innovation.

Collaborations

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Conclusion

Wally Liyuan Chang's contributions to the field of flame retardant materials and polyurethanes highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving safety and performance in various applications.