Barry J Dempsey

Title: Barry J Dempsey: Innovator in Asphalt Technology

Introduction

Barry J Dempsey is a notable inventor based in White Heath, Illinois. He has made significant contributions to the field of asphalt technology, holding a total of 6 patents. His work focuses on improving the performance and durability of asphalt binders through innovative methods and materials.

Latest Patents

Dempsey's latest patents include an "Antioxidant treatment of asphalt binders." This invention describes a combination of antioxidants and a method for incorporating them into asphalt binders to create a modified product. The antioxidants consist of a thioester and an aldehyde, mixed in specific ratios. An acidic catalyst is also added to enhance the performance of the asphalt binder. This modified binder exhibits superior resistance to oxidative age hardening compared to other compositions.

Another significant patent is the "Stress absorbing composite for road repair and method." This invention provides a composite that includes a low stiffness geotextile, a viscoelastic material, and a high stiffness geotextile. The method aims to retard reflective cracking in road overlays, showcasing Dempsey's commitment to advancing road repair technologies.

Career Highlights

Throughout his career, Barry J Dempsey has worked with prominent organizations, including Monsanto Company and the University of Illinois. His experience in these institutions has allowed him to develop and refine his innovative ideas in asphalt technology.

Collaborations

Dempsey has collaborated with notable colleagues such as Joseph Mantarro and Keh-Chang Liu. These partnerships have contributed to the success of his inventions and the advancement of asphalt technology.

Conclusion

Barry J Dempsey's contributions to asphalt technology through his patents and collaborations highlight his innovative spirit and dedication to improving road infrastructure. His work continues to influence the industry and pave the way for future advancements.