Douglas A Loy

Title: **Douglas A. Loy: Innovator in Polysilsesquioxane-Based Technologies**

Introduction

Douglas A. Loy, an accomplished inventor based in Tucson, AZ, has made significant contributions to the field of materials science with a focus on polysilsesquioxane-based technologies. With a substantial portfolio of 26 patents, Loy's work primarily revolves around innovative formulations and processes that enhance the stability and efficacy of materials used in everyday applications.

Latest Patents

Among his latest patents, Loy has developed photochemically stable, non-leaching, bridged polysilsesquioxane-based sunscreens. This innovative sunscreen formulation is prepared as nanoparticles through oil/water microemulsion polymerization, sol-gel polymerizations, or a modified Stober process. These advancements significantly minimize leaching and reduce photo-degradation by incorporating covalent bonds, ensuring that both the sunscreen and any resultant photo-products remain isolated from the skin. Importantly, the SPF values achieved are comparable to existing commercial sunscreens, while the bridged polysilsesquioxane-based sunscreens are classified as broad-spectrum, providing moderate to superior UVA protective ability.

In addition, Loy has patented a method for forming a robust network of foam through the Diels-Alder reaction. This process involves synthesizing organosilicon polymer foams using a Carboni-Lindsey reaction of a tetrazine with a siloxane polymer that includes alkenyl or alkynyl functional groups. The resulting organosilicon polymer foams can be crosslinked to produce thermoset foams that are flexible or rubbery.

Career Highlights

Douglas A. Loy has had a distinguished career, collaborating with notable institutions such as Sandia Corporation and the Arizona Board of Regents on behalf of the University of Arizona. His expertise in polymer science and engineering has led to the development of innovative materials that not only push the boundaries of scientific research but also have practical applications in various industries.

Collaborations

Throughout his career, Loy has worked alongside brilliant minds, including his colleagues David R. Wheeler and James R. McElhanon. These collaborations have enriched his research and contributed to the successful development of various patented technologies.

Conclusion

Douglas A. Loy's work exemplifies innovation in materials science, particularly through his development of advanced polysilsesquioxane-based solutions. His numerous patents reflect his expertise and commitment to enhancing product performance while addressing key concerns related to stability and safety. As he continues to make strides in this field, Loy remains a pivotal figure in advancing materials that benefit consumers and industries alike.