Douglas C Smith

Title: Innovations by Douglas C. Smith

Introduction

Douglas C. Smith is an accomplished inventor based in Landenberg, PA (US). He has made significant contributions to the field of papermaking through his innovative patents. With a total of 2 patents, his work focuses on enhancing the strength and quality of paper products.

Latest Patents

One of his latest patents is titled "Strength of paper made from pulp containing surface active, carboxyl compounds." This invention outlines a process for preparing an aqueous papermaking suspension that includes a polyelectrolyte complex. The process involves using a suspension of pulp fibers with a water-soluble cationic polymer and a water-soluble anionic polymer, which react to form the polyelectrolyte complex. Additionally, it incorporates a multivalent cation with at least a +3 charge, resulting in a paper product with improved strength.

Another notable patent is the "Dry strength additive for paper." This invention describes a polyelectrolyte complex that includes a water-soluble, linear, high molecular weight, low charge density cationic polymer and a water-soluble anionic polymer. The process involves forming an aqueous suspension of cellulosic fibers, adding the strengthening additive, and then sheeting and drying the fibers to create a robust cellulosic web.

Career Highlights

Douglas C. Smith is associated with Hercules Corporation, where he applies his expertise in papermaking technologies. His innovative approaches have contributed to advancements in the industry, particularly in enhancing the durability and performance of paper products.

Collaborations

Throughout his career, Douglas has collaborated with notable colleagues, including Jay A. Dickerson and Harry J. Goldy. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Douglas C. Smith's contributions to the field of papermaking through his patents demonstrate his commitment to innovation and quality. His work continues to influence the industry, paving the way for stronger and more efficient paper products.