Company Filing History:
Years Active: 1976-1982
Title: Walter A. Trumbull: Innovator in Polymer Technology
Introduction
Walter A. Trumbull is a notable inventor based in Midland, MI (US). He has made significant contributions to the field of polymer technology, particularly through his innovative patents. With a total of 3 patents to his name, Trumbull has demonstrated a commitment to advancing materials science.
Latest Patents
Trumbull's latest patents include an "Agglomerate-free, bubble-free, high barrier vinylidene chloride polymer." This patent describes an improved process for preparing extruded films from film-forming polymeric compositions based on vinylidene chloride copolymers. The process involves preparing a preblend of inorganic particulate additives and an alkali metal salt of an alkylaryl sulfonic acid, followed by creating an admixture with the vinylidene chloride copolymers. The resulting admixture is then formed into an extruded film using conventional techniques.
Another significant patent is the "Adjustable plug seal mechanism for heat transfer zone separation." This invention features an easily-movable plug seal that allows for quick longitudinal adjustments in the central bore of an internally differentially heated or cooled extruder screw. The design includes a cup-like member that can be flared laterally outward to create a sealing engagement against the internal screw bore wall when pressurized by heat transfer fluid.
Career Highlights
Walter A. Trumbull is currently associated with The Dow Chemical Company, where he continues to innovate in the field of polymer technology. His work has contributed to the development of advanced materials that are essential in various industrial applications.
Collaborations
Trumbull has collaborated with notable coworkers such as Harold E. St. Louis and Angela J. Williams. Their combined expertise has fostered a productive environment for innovation and development within their projects.
Conclusion
Walter A. Trumbull's contributions to polymer technology through his patents reflect his dedication to innovation. His work at The Dow Chemical Company and collaborations with esteemed colleagues further enhance his impact in the field.