This inventor holds 1 USPTO granted patent. Top assignee: Atofina. Active years: 2002.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2002
Title: Thierry Dreyfus and His Patent on Aminopolyamide-Epichlorohydrin Resins.
Introduction
Thierry Dreyfus is an inventor associated with Margny-les-Compiègne, France, and Atofina. His recorded patent concerns a process for producing aminopolyamide-epichlorohydrin resins with very low levels of 1,3-dichloro-2-propanol.
Latest Patents
Dreyfus is credited with 1 patent: “Process for Obtaining Aminopolyamide-Epichlorohydrin Resins with a 1,3-Dichloro-2-Propanol Content Which Is Undetectable by Ordinary Means of Vapor-Phase Chromatography.” The process passes products formed through successive condensation of aminopolyamides and epichlorohydrin through two activated-carbon columns. It produces aqueous resins with toxic products reduced to levels undetectable by ordinary vapor-phase chromatography. The resins are described as useful wet-strength additives for paper intended for medical, cosmetic, or food-contact applications.
Career Highlights
The available information connects Dreyfus’s work with Atofina and highlights his contribution to resin processing for paper applications. The patent focuses on removing residual 1,3-dichloro-2-propanol through activated-carbon treatment.
Collaborations
Henri Laurent and Chantal Poulet are identified as Dreyfus’s coworkers.
Conclusion
Thierry Dreyfus’s recorded invention addresses the purification of aminopolyamide-epichlorohydrin resins, supporting their use in paper products designed for sensitive applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile