Stephen P Williams

Title: Celebrating the Innovations of Stephen P Williams

Introduction

Stephen P Williams, an accomplished inventor based in Winston-Salem, North Carolina, has made significant contributions to the field of chemical engineering with his innovative patents. With a total of two patents to his name, he has focused on the development of formulations for the efficient removal of hydrophilic inks, particularly in flexographic printing processes. His work stands out in the industry, showcasing both creativity and practicality.

Latest Patents

Williams holds two notable patents that address the challenges of deinking in the recycling process. The first patent, titled "Deinking Formulation for Flexographic Inks," introduces a novel combination of ingredients to enhance the removal of hydrophilic flexographic inks from pulp fiber slurries. This formulation involves using a fatty acid or its salt, a rosin acid or its salt, and a non-ionic or anionic surfactant, all mixed with water that has a hardness range of approximately 80 to 500 ppm Ca²⁺.

The second patent, "Method of Removing Hydrophilic Ink," further develops the techniques for deinking by employing a combination of a non-ionic surfactant, a fatty acid or salt thereof, and a water-soluble cationic polymer with a molecular weight of less than about 1,000,000 daltons. This polymer is derived from either the reaction of epichlorohydrin with diamines or from the polymerization of aziridine, making the method highly effective for pulp fiber slurry processing.

Career Highlights

Throughout his career, Stephen P Williams has been associated with notable companies such as High Point Chemical Corporation and Kao Corporation. His roles in these organizations have allowed him to apply his extensive knowledge and skills in chemical formulations, contributing to advancements in manufacturing processes and product development.

Collaborations

Williams has collaborated with esteemed professionals in his field, including Hideaki Urushibata and Francisco F Fossas. These collaborations have undoubtedly enriched his research and development efforts, fostering a shared commitment to innovation in the chemical industry.

Conclusion

Stephen P Williams continues to be a prominent figure in the realm of chemical engineering and innovation. His patents not only signify his inventive spirit but also reflect a dedication to improving processes in the printing and recycling sectors. As he advances in his career, the impact of his work will surely resonate within industry practices, paving the way for future developments in deinking technology.