Company Filing History:
Years Active: 1978-1983
Title: The Innovative Mind of Francoise Barre in Photochemistry
Introduction
Francoise Barre, an accomplished inventor based in Paris, France, has made significant contributions to the field of photochemistry with his innovative inventions. With a portfolio of six patents, Barre has dedicated his career to developing advanced materials that push the boundaries of technology.
Latest Patents
Among his latest inventions is a family of compounds crosslinkable by photon irradiation. These negative resins are capable of undergoing crosslinking through the influence of various types of photons, including gamma radiation, X-rays, ultraviolet, and visible light. This groundbreaking work has applications in protecting objects against atmospheric agents and in the production of masks used in integrated circuit fabrication. The typical compound, characterized by the presence of a thiirane ring, includes substances like 2,3-epithiopropyl methacrylate copolymerized with vinyl monomers such as methyl methacrylate. The crosslinking process is enhanced by photoinitiators like aryl diazonium and aryl iodonium salts, which release Lewis acids, allowing for selective action under effective irradiation.
Another noteworthy patent is his method for making electron-sensitive negative resist. This polymerized resin has demonstrated an exceptional sensitivity to electrons—up to ten times more than conventional resins. This innovation is achieved by copolymerizing epithiopropylmethacrylate with vinyl monomers such as methyl methacrylate, resulting in a material that undergoes cross-linking upon electronic irradiation, rendering it insoluble in specific solvents.
Career Highlights
Francoise Barre has built a successful career at Thomson-CSF, a leading company in the field. His work has consistently highlighted the integration of cutting-edge technology with practical applications, showcasing his innovative mindset and technical prowess.
Collaborations
Throughout his career, Barre has collaborated with esteemed colleagues such as Maryse Gazard and Armand Eranian. These partnerships have enriched his research endeavors, fostering an environment of creativity and collaboration that has led to remarkable advancements in photopolymer materials.
Conclusion
Francoise Barre stands out as a prominent inventor in the field of photochemistry. His latest patents reflect a profound understanding of materials science and innovation. With his contributions, Barre not only enhances the capabilities of current technologies but also paves the way for future advancements in various industries.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.