Junjun Wan

Title: Innovations by Junjun Wan in Metal Pretreatment Solutions

Introduction

Junjun Wan is an accomplished inventor based in Shanghai, China. He has made significant contributions to the field of metal pretreatment solutions, holding 2 patents that focus on enhancing corrosion resistance and adhesion properties for metal surfaces.

Latest Patents

One of his latest patents is titled "Metal pretreatment compositions comprising silanes and organophosphorus acids." This invention involves an acidic aqueous metal pretreatment solution that includes amino-functional organosilanes and organophosphorus acids. These solutions effectively reduce temporary corrosion when applied to metal surfaces and improve adhesion for subsequently coated organic lacquers. The invention also outlines a process for treating metal substrates, particularly zinc and zinc-coated steel.

Another notable patent is "Metal pretreatment with acidic aqueous compositions comprising silanes." This invention is directed towards an acidic aqueous metal pretreatment solution that contains amino-functional organosilanes, complex anions of elements such as Zr, Ti, Hf, and/or Si, along with oxyacids of phosphorus. The process aims to reduce corrosion on metal surfaces and enhance adhesion properties for organic lacquers.

Career Highlights

Junjun Wan is currently associated with Henkel AG & Company, KGaA, where he continues to innovate in the field of metal pretreatment. His work has been instrumental in developing solutions that address critical challenges in metal surface treatment.

Collaborations

Throughout his career, Junjun has collaborated with notable colleagues, including Qi Zhang and Uta Sundermeier, who contribute to the innovative environment at Henkel.

Conclusion

Junjun Wan's contributions to metal pretreatment solutions demonstrate his commitment to advancing technology in this field. His patents reflect a deep understanding of materials science and a dedication to improving industrial processes.