Company Filing History:
Years Active: 1986-1989
Title: The Innovative Mind of Walter L. Krueger
Introduction
Walter L. Krueger is a distinguished inventor based in Saint Paul, Minnesota, known for his contributions to the field of polymer chemistry. He has been granted a total of two patents that showcase his expertise and innovative spirit in developing pressure-sensitive adhesives.
Latest Patents
Among his noteworthy patents, Walter's latest innovations include methods related to acrylate pressure-sensitive adhesives. These patents disclose a bulk polymerization process for free radical polymerization of vinyl monomers in a wiped surface reactor. In this method, monomer streams, after purification, are combined with a free radical initiator to form a premix. This premix is then pumped through a static mixer into a wiped surface reactor, often a counter-rotating twin-screw extruder. This novel process allows the production of unique pressure-sensitive adhesive acrylate polymers, believed to exhibit a high degree of branching. The method also facilitates the direct extrusion of adhesive articles onto substrates, eliminating the need for solvents and significantly reducing processing times compared to traditional methods.
Career Highlights
Walter L. Krueger has made significant advancements in adhesive technology during his tenure at the Minnesota Mining and Manufacturing Company, commonly known as 3M. His work focuses on enhancing the efficiency and effectiveness of polymerization processes, which are critical in producing high-performance adhesive products.
Collaborations
Throughout his career, Walter has collaborated with esteemed colleagues such as Thomas A. Kotnour and Ronald L. Barber. These partnerships have contributed to the innovative breakthroughs in adhesive technologies and the overall success of their projects.
Conclusion
Walter L. Krueger’s pioneering work in the field of polymer science not only highlights his inventive capabilities but also demonstrates the importance of innovation in improving industrial applications. His patents continue to influence the development of advanced pressure-sensitive adhesives, positioning him as a valuable contributor to the industry.