Company Filing History:
Years Active: 1989-1991
Title: Yves Darche: Innovator in Organic Chemistry
Introduction
Yves Darche is a notable inventor based in Orthez, France. He has made significant contributions to the field of organic chemistry, particularly in the production of dialkyl disulphides and organic polysulphides. With a total of 2 patents, his work has implications for various industrial applications.
Latest Patents
Darche's latest patents include a process for the production of lower dialkyl disulphides. This invention relates to the production of dialkyl disulphides of the R-SS-R type, where R represents an alkyl radical having from 1 to 3 carbon atoms. The process involves the oxidation of the corresponding alkyl mercaptan R--SH by sulphur in the presence of a catalyst. A combination of an alkyl mercaptan R'--SH with an alkylene oxide and an alkaline base is used as a catalyst, where R' represents an alkyl radical having from 6 to 18 carbon atoms. This innovative catalyst enables the production of lower dialkyl disulphides of excellent quality, characterized by the absence of amine and coloration.
Another significant patent by Darche is for the production of organic polysulphides. This process involves the type R--S.sub.n --R, where R is a hydrocarbon group and n is a number from 2 to 8. The method consists of heating one or more mercaptans with sulphur in the presence of a catalyst, which is a combination of a mercaptan with an alkene oxide and an alkaline base.
Career Highlights
Yves Darche is associated with the company Société Nationale Elf Aquitaine, where he focuses on production. His work has been instrumental in advancing the methods used in organic chemistry, particularly in the synthesis of complex compounds.
Collaborations
Darche collaborates with Henri Gongora, contributing to the innovative projects within their field. Their partnership has fostered advancements in chemical processes and product development.
Conclusion
Yves Darche's contributions to organic chemistry through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in chemical production.