Company Filing History:
1 out of 5,072 
1 out of 208 
1 out of 25 
Years Active: 2020
Title: Innovations by René Rossin: Pioneering Aromatic Polyimides
Introduction: René Rossin, a notable inventor from Francheville, France, has made significant contributions to the field of chemistry. With one patent to his name, Rossin's work focuses on a novel process for producing aromatic polyimides, which are critical materials in various high-performance applications.
Latest Patents: Rossin's patent titled "Process for producing aromatic polyimides" introduces a comprehensive methodology for synthesizing these advanced materials. The process involves several key steps:
(a) the preparation of one or more solid salts through the reaction of aromatic tetracarboxylic acids with diamines in a precise mole ratio of 0.95 to 1.05;
(b) drying the resulting solid salts;
(c) adding compounds containing carboxylic acid, anhydride, ester, or acyl chloride groups to the dry salts;
(d) finally, solid-state polymerization of the salts in the presence of the added compounds. This innovative approach enhances the properties of aromatic polyimides, making them valuable for various industrial uses.
Career Highlights: Throughout his career, René Rossin has been associated with esteemed research institutions, notably the Centre National de la Recherche Scientifique and Université Claude Bernard Lyon 1. His tenure at these institutions has allowed him to explore and develop groundbreaking technologies that contribute to scientific advancements.
Collaborations: Rossin has had notable collaborations with fellow researchers, including Stéphane Jeol and Vincent Mollet. These partnerships have played a significant role in enriching his research and navigating the complexities of developing innovative polymerization processes.
Conclusion: In summary, René Rossin stands out as a prominent figure in the field of material science, with a particular focus on aromatic polyimides. His patented process not only showcases his expertise but also reflects the potential applications and innovations that arise from rigorous research and collaboration within the scientific community. Through his work, Rossin continues to influence advancements in high-performance materials.