David J Wrigley

Title: Innovator Spotlight: David J. Wrigley

Introduction: David J. Wrigley, an accomplished inventor located in Athenaz, Switzerland, has made significant contributions to the field of materials science through his innovative patents. With three patents to his name, Wrigley's work primarily focuses on advancements in flame retardant materials and thermoplastic elastomers.

Latest Patents: Among his latest patents is the "Heat stable halogen-free flame retardant copolyester thermoplastic elastomer compositions." This invention details a halogen-free flame retardant composition that maintains mechanical properties, particularly elongation at break, under high-temperature exposure. The composition comprises at least one copolyester thermoplastic elastomer, varying percentages of flame retardants including phosphinates or diphosphinates, and polyhydroxy polymers such as ethylene vinyl alcohol copolymers.

Another notable patent concerns "Thermoplastic resins containing PBT units, having reduced organic carbon emissions." This patent introduces a method for decreasing organic carbon emissions from PBT-block-containing resins by incorporating a titanium-catalyst deactivating compound post-polymerization, showcasing Wrigley's commitment to environmentally friendly innovations.

Career Highlights: David J. Wrigley is currently associated with E.I. du Pont de Nemours and Company, a leading organization in the development of advanced materials. His role within this esteemed company allows him to push the boundaries of material science and engineering, driving forward the development of innovative solutions that meet evolving industry needs.

Collaborations: Throughout his career, Wrigley has collaborated with esteemed colleagues such as Judith Alison Peacock and James Michael McKenna. These collaborations have further enriched his innovative projects and led to impactful advancements in their fields.

Conclusion: David J. Wrigley's contributions to the realm of materials science are a testament to his ingenuity and dedication as an inventor. His patents exemplify cutting-edge developments in flame retardant materials, highlighting his role as a significant player in advancing sustainable technologies within the industry. As he continues his work at E.I. du Pont de Nemours and Company, the potential for future innovations remains promising.