Hongxing Chen

Title: Innovations of Hongxing Chen in Polyester Film Technology

Introduction

Hongxing Chen is a notable inventor based in Shanghai, China, recognized for his contributions to the field of polyester film technology. With a total of five patents to his name, Chen has made significant advancements that enhance the performance and application of polyester films in various industries.

Latest Patents

Chen's latest patents include a polyester film designed for coating iron and a film-coated metal plate. The polyester film is a blended thin film composed of copolyester and homopolyester, featuring upper, middle, and lower layers. Each layer is a homogeneous mixture of the two types of polyester. The copolyester contains 800-2000 ppm by mass of SiO, which is added through in-situ polymerization. The dihydric alcohol component in the copolyester includes ethylene glycol, 1,4-cyclohexanedimethanol, and 1,4-butanediol, with a melting point ranging from 200-240° C. This innovative film exhibits excellent processability, chemical resistance, and uniformity, making it suitable for food and beverage packaging applications that require high corrosion resistance.

Another significant patent involves a blended polyester laminating film resistant to discoloration caused by cooking. This film comprises polyethylene terephthalate and polybutylene terephthalate, structured in three layers. One surface layer contains SiO in a mass fraction of 1200-2000 ppm, also added by in-situ polymerization. The manufacturing process involves a three-layer coextrusion biaxial stretching method at temperatures between 240-275° C. The resulting film-laminated metal sheet demonstrates excellent resistance to discoloration, making it ideal for metal containers that undergo high-temperature sterilization.

Career Highlights

Hongxing Chen is currently employed at Baoshan Iron & Steel Co., Ltd., where he continues to innovate and develop new materials that meet the evolving needs of the industry. His work has significantly impacted the field of packaging materials, particularly in enhancing the durability and functionality of polyester films.

Collaborations

Chen has collaborated with notable colleagues, including Long Xie and Zhangwei Wang, contributing to the advancement of polyester film technologies through teamwork and shared expertise.

Conclusion

Hongxing Chen's innovative work in polyester film technology has led to significant advancements in the field,