Robert A Janssen

**Title: The Innovative Contributions of Robert A. Janssen**

Introduction

Robert A. Janssen, an accomplished inventor based in Eden Prairie, Minnesota, is recognized for his significant contributions to polymer technology. With a total of three patents to his name, Janssen has made strides in modifying the surface characteristics of polymeric substrates, thereby enhancing their functional properties to meet various industrial needs.

Latest Patents

Two of Robert A. Janssen's latest patents illustrate his innovative approach toward polymer modification. The first patent, titled "Fluorocarbon Grafting of Polymeric Substrates," describes a method for enhancing the lubricity and other properties of pre-formed polymeric substrates. This is achieved without significantly altering the bulk properties of the material. The process involves epoxidizing the substrate's surface and reacting the epoxide groups with a fluorocarbon that cleaves the epoxide rings and bonds covalently.

The second patent, "Process for Graft Copolymerization of a Pre-formed Substrate," focuses on modifying the surface characteristics of a polymeric substrate to introduce properties like hydrophilicity or hydrophobicity. This process employs peroxidation of the substrate's surface, generating free radicals along the polymer chains that induce graft polymerization of suitable ethylenic monomers. This innovative technique takes place in the presence of variable valence metal ions and is performed under specific conditions to control the physical characteristics of the graft without producing harmful by-products.

Career Highlights

Robert A. Janssen is affiliated with American Hospital Supply Corporation, where he applies his expertise in polymer technology to the medical field. His work has significantly contributed to advancements in medical supplies and equipment that utilize modified polymers for better performance and reliability.

Collaborations

Throughout his career, Janssen has collaborated with notable colleagues, including Kenneth G. Mayhan and William J. Bertrand. These collaborations have allowed for the exchange of ideas and enhanced the research and development of innovative polymer solutions.

Conclusion

Robert A. Janssen's inventive spirit and dedication to refining polymer materials have led to advancements that extend beyond conventional applications. His patents not only address specific industry needs but also pave the way for future innovations in polymer technology. As he continues to work with his team at American Hospital Supply Corporation, there is no doubt that his contributions will leave a lasting impact in the field.