Location History:
- St. Michel-sur-Orge, FR (1978)
- St Michel-sur-Orge, FR (1978)
- Saint Michel sur Orge, FR (1978 - 1982)
Company Filing History:
5 out of 53 
3 out of 338 
2 out of 46 Years Active: 1978-1982
Title: Pierre Sigwalt: A Pioneer in Organolithium Chemistry
Introduction
Pierre Sigwalt, an esteemed inventor based in Saint Michel sur Orge, France, is recognized for his significant contributions to the field of organolithium chemistry. With a portfolio of 8 patents, Sigwalt has demonstrated a remarkable ability to innovate and advance polymerization techniques, marking him as a notable figure in the scientific community.
Latest Patents
Among his latest inventions, Sigwalt's patents include the development of bi- and trifunctional organolithium initiators. These innovative initiators are synthesized through a specific reaction involving compounds of the formula, without the use of polar solvents or complexing agents. The unique initiators allow for the preparation of polydienes with high stereoregularity, which can then be used to create three-block or star copolymers from anionically polymerizable monomers. Sigwalt also holds a patent for organo-lithium compounds that provide useful polymerization initiation properties, further solidifying his legacy in polymer science.
Career Highlights
Throughout his career, Sigwalt has made significant strides in the field of chemistry, particularly through his work at notable organizations such as Société Chimique Des Charbonnages and Agence Nationale De Valorisation De La Recherche (ANVAR). His role in these institutions has allowed him to develop cutting-edge technologies that have practical applications in various industries.
Collaborations
In addition to his independent work, Pierre Sigwalt has collaborated with several notable colleagues, including Patrick Guyot and Michel H. Fontanille. These collaborations have enhanced his research endeavors and contributed to the development of innovative solutions in the domain of organolithium chemistry.
Conclusion
Pierre Sigwalt stands as a distinguished inventor whose work on organolithium initiators and compounds has profoundly impacted the polymerization process. His dedication to advancing chemical research, coupled with his collaborative spirit, ensures that his contributions will continue to influence the field of polymer science for years to come.
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