Company Filing History:
Years Active: 1986-1989
Title: Innovations of Charles W Strobel
Introduction
Charles W Strobel is a notable inventor based in Schaumburg, IL (US). He has made significant contributions to the field of polymer technology, holding a total of 3 patents. His work focuses on innovative processes and compositions that enhance the properties of materials used in various applications.
Latest Patents
One of Strobel's latest patents is for a thermosetting size press composition. This invention involves a thermosetting size that can be applied to paper in a size press and cured at a temperature not exceeding about 280°F for 10 seconds. The composition includes an aqueous emulsion with suspended copolymer particles made from monoethylenically unsaturated monomers. These monomers include a hydroxy-functional monomer with a hydroxy number of at least about 20, ensuring the formation of a water-insoluble polymer with a glass transition temperature ranging from about -20°C to about 50°C. The emulsion maintains a pH greater than about 2.5, preferably between 4.0 and 7.0, and utilizes a stoichiometric deficiency of an aminoplast cross-linking agent for curing, with an acid curing catalyst uniformly distributed to expedite the process.
Another significant patent involves a process for drying polymeric beads while preventing agglomeration. This process introduces an organic solvent that forms an azeotrope with water, such as methyl isobutyl ketone, to a water-wet paste containing polymeric beads. The mixture is heated to remove water as an azeotrope with the solvent, resulting in a water-free suspension of beads in the organic solvent. The method also allows for the addition of a resinous vehicle to increase solids content while minimizing the proportion of azeotropic solvent.
Career Highlights
Strobel is currently associated with Desoto, Inc., where he continues to innovate and develop new technologies. His work has significantly impacted the industry, particularly in the area of polymer applications.
Collaborations
Throughout his career, Strobel has collaborated with notable colleagues, including Laura M Wells and Fred D Hawker. These partnerships have contributed to the advancement of his research and the successful development of his patents.
Conclusion
Charles W Strobel's contributions to polymer technology through his innovative patents demonstrate his expertise and commitment to advancing the field. His