Company Filing History:
2 out of 168 
1 out of 1 
1 out of 52 Years Active: 1998
Title: Bruce Evans: Innovator in Paper Production Technology
Introduction
Bruce Evans is a notable inventor based in Bethlehem, PA (US), recognized for his contributions to the field of paper production technology. With a total of 2 patents to his name, Evans has made significant advancements in the creation of filled paper, which enhances the quality and functionality of paper products.
Latest Patents
Evans' latest patents focus on the production of filled paper. The first patent describes a method where a cationising amount of cationic polymer is added to a slurry of precipitated calcium carbonate. This mixture is then incorporated into a cellulosic suspension to form a thin stock. The process involves adding anionic particulate material to the suspension, mixing in a polymeric retention aid, and subsequently draining the thin stock on a screen to create a sheet that is then dried. The suitable slurry for this process consists of 5 to 70% by weight precipitated calcium carbonate and cationic polymer, which includes cationic starch and a high charge density cationic polymer.
The second patent also pertains to the production of filled paper and its compositions. In this method, a cationising amount of cationic polymer is added to precipitated calcium carbonate or other fillers, either as a slurry or in a thick stock component. This results in a thin stock containing the cationised filler, which is treated with a formaldehyde resin and polyethylene oxide as a retention system before drainage and drying.
Career Highlights
Throughout his career, Bruce Evans has worked with several companies, including Allied Colloids Limited and Mineral Technologies, Inc. His expertise in the field has allowed him to develop innovative solutions that improve the efficiency and quality of paper production.
Collaborations
Evans has collaborated with notable coworkers such as David Depasquale and Brian Frederic Satterfield. These partnerships have contributed to the advancement of his research and the successful implementation of his patented technologies.
Conclusion
Bruce Evans stands out as an influential inventor in the paper production industry. His innovative patents and collaborative efforts have significantly impacted the field, paving the way for advancements in filled paper technology.