Han Yan

Title: Innovations of Inventor Han Yan in Water-Reducing Agents

Introduction

Han Yan, an accomplished inventor based in Nanjing, China, has made significant contributions to the field of material science, particularly in the development of innovative water-reducing agents. With a total of three patents to his name, Yan has focused on creating solutions that enhance construction materials' efficiency and adaptability.

Latest Patents

His latest patents showcase groundbreaking advancements in polycarboxylic acid water-reducing agents. One such invention is titled "Polycarboxylic acid water-reducing agent with high adaptability to temperature and method for preparing the same." This patent discloses a water-reducing agent that maintains its efficacy across varying temperatures. The agent features an unsaturated macromonomer with a temperature-sensitive side chain that bonds to the polycarboxylic acid backbone through free radical polymerization. As a result, the agent can automatically adjust its adsorption group density in response to temperature changes, demonstrating similar dispersing capabilities at different environmental conditions. This adaptability broadens the agent's application to regions with varying climates.

Another important innovation by Han Yan is titled "Multitype-adsorptive-group polycarboxylic acid water-reducing agent, method for preparing the same and use thereof." This invention combines a macromolecule with multiple adsorptive groups, including carboxylic, sulfonic, and phosphoric acid groups, providing improved performance in terms of adaptability to various cements and aggregates. The agent maintains high water reduction efficiency, even with aggregates containing impurities, such as machine-made sand.

Career Highlights

Han Yan's work has been significantly influenced by his tenure at reputable companies. He has worked at Sobute New Materials Co., Ltd and Nanjing Bote New Materials Co., Ltd, where he has applied his expertise in developing innovative materials that meet industry needs.

Collaborations

Throughout his career, Han Yan has collaborated with distinguished colleagues such as Qianping Ran and Yong Yang. These collaborations have fostered an environment for innovation, leading to the advancement of water-reducing agents that benefit modern construction practices.

Conclusion

In summary, Han Yan stands out as a notable inventor whose innovations in water-reducing agents are poised to transform construction material efficiency. His patents not only enhance the adaptability of materials to varying temperatures but also improve their performance with different aggregates. Yan's contributions represent a significant step forward in the field, promising more efficient and reliable construction solutions.