Edward H Chang

Title: Edward H. Chang: Innovator of Metal Cleaning Solutions from Burnsville, MN

Introduction

Edward H. Chang is a distinguished inventor based in Burnsville, Minnesota with a remarkable portfolio that includes three patents. His innovative solutions have made significant contributions in the fields of metal cleaning and wood finish removal, showcasing his expertise in chemical formulations.

Latest Patents

Chang's latest patents reflect his dedication to creating environmentally-friendly and efficient cleaning solutions. One of his notable inventions is a low-temperature metal cleaning composition designed for aqueous cleaning and polishing baths. This formulation incorporates an alkaline builder composed of sodium metasilicate, combined with sodium hydroxide and sodium carbonate, among others. The system also includes essential components such as sodium gluconate, the tetrasodium salt of ethylenediaminetetraacetic acid, kerosene, and a biodegradable wetting agent system that enhances cleaning performance. Importantly, this formulation is free from poly or orthophosphates, aligning with eco-friendly practices.

Another significant patent by Chang is an acidic wood finish remover. This innovative formulation consists of hydroxyacetic acid in a methylene chloride solution, augmented with a vapor pressure depressant like paraffin and a wax solubilizer such as toluene. Furthermore, the inclusion of an anionic detergent and a corrosion inhibitor ensures that the product is effective while maintaining safety during storage in metal containers.

Career Highlights

Edward H. Chang has made noteworthy advancements in chemical engineering through his work with Fremont Industries, Inc. His career reflects a commitment to innovation that addresses the needs of both businesses and consumers in the cleaning industry. His patents stand as a testament to his technical knowledge and creativity, paving the way for more effective and sustainable cleaning solutions.

Collaborations

Throughout his career, Chang has collaborated with talented coworkers, including William V. Block and Mark L. Gruss. These partnerships have likely fostered an environment of shared innovation and creativity, contributing to the successful development of his patented formulations.

Conclusion

Edward H. Chang's contributions to the fields of metal cleaning and wood finish removal exemplify the spirit of innovation that drives progress in the industry. With his patents, he continues to influence the market with environmentally-conscious solutions that enhance cleaning efficacy. As he continues his work at Fremont Industries, Inc., Chang's inventive spirit is sure to lead to even more advancements in the future.