Leo W Halm

Title: Innovations by Leo W. Halm in Pressure Sensitive Adhesives

Introduction

Leo W. Halm is an accomplished inventor based in Blaine, Minnesota, with a focus on developing advanced materials and compositions. He holds two patents, showcasing his contributions to the field of adhesives, particularly in enhancing their stability and curing processes.

Latest Patents

Halm's latest patents include significant advancements in pressure sensitive adhesives. The first patent is for a curable pressure sensitive adhesive that offers long shelf stability. This adhesive combines a free radically polymerized polymer, a cationically-polymerizable monomer, and a photo-activatable catalyst system. Notably, it ensures that there is essentially no conversion of the cationically-polymerizable monomer when stored appropriately, thus maintaining its effectiveness over time.

The second patent focuses on energy curable compositions designed to improve cure speeds. This composition utilizes a two-component catalyst system that incorporates an organometallic catalyst along with an organic peroxide, leading to decreased cure times and enhanced physical properties such as break energy and tangent modulus.

Career Highlights

Halm's career has been marked by his tenure at the Minnesota Mining and Manufacturing Company, known for its innovative products and technologies. His work has significantly impacted the development of semi-structural adhesives, a critical component in various manufacturing processes.

Collaborations

Throughout his career, Leo W. Halm has collaborated with numerous talented individuals, including esteemed colleagues Naimul Karim and Kevin E. Kinzer. These collaborations have fostered a creative environment that has propelled the advancement of adhesive technologies, benefiting the industry and consumers alike.

Conclusion

Leo W. Halm stands out as an influential figure in the invention of pressure sensitive adhesives. His patents not only demonstrate his commitment to innovation but also highlight his ability to address important challenges in adhesive technology. Through his work at the Minnesota Mining and Manufacturing Company and his collaborations with fellow inventors, Halm continues to contribute to the evolution of materials that have widespread applications.