Location History:
- Bothell, WA (US) (2021)
- Margate, FL (US) (2023)
- DeKalb, IL (US) (2014 - 2024)
Company Filing History:
15 out of 1,967 
3 out of 386 
1 out of 1 Years Active: 2014-2025
Title: Celebrating the Innovations of David J. Castro in Paper Treatment Technologies
Introduction: David J. Castro, a prolific inventor based in DeKalb, Illinois, has made significant contributions to the field of paper treatment technologies. With a remarkable total of 21 patents to his name, Castro's work focuses on enhancing the strength and quality of paper products through innovative formulations and methods.
Latest Patents: Among his notable recent patents are two key inventions. The first, titled "Formulation for size press applications," details paper treating compositions designed to include a strength agent and a surfactant or a sizing agent and a surfactant. These compositions prove beneficial in improving sizing and paper strength, particularly in spray size press applications. The second patent, "Creping adhesives and processes for making and using same," outlines creping adhesives that encompass a solvent and a modified polyvinyl alcohol, along with a crosslinked resin. These adhesives are crafted through complex chemical structures involving polyamidoamine backbones and various crosslinking moieties, showcasing Castro's innovative approach to developing effective adhesives for paper application processes.
Career Highlights: David J. Castro has built a distinguished career, collaborating with industry leaders such as Ecolab USA Inc. and Nalco Company. His extensive experience in these companies has enabled him to apply his inventive skills to real-world challenges in the paper industry, furthering his impact on paper treatment technologies.
Collaborations: Throughout his career, Castro has worked alongside talented colleagues, including Mei Liu and Gary Samuel Furman, Jr. Their collaborative efforts reflect a shared dedication to advancing paper treatment solutions, contributing to the overall success of their projects.
Conclusion: David J. Castro's innovations and patents have significantly advanced the efficiency and strength of paper products. His ongoing contributions to the field underscore the importance of research and collaboration in industrial advancements, solidifying his position as a key player in the paper treatment technology sector.