Patents by Inventor Daniel Pellegrin

Daniel Pellegrin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Synthesis of chloroacetic acids
    Patent number: 5401876
    Abstract: Chloroacetic acids and essentially pure hydrochloric acid are prepared by chlorinating acetic acid in the presence of a catalytically effective amount of acetic anhydride, acetyl chloride, or admixture thereof, whereby byproducing a gaseous stream of crude hydrochloric acid, contacting such gaseous stream with active charcoal to remove the chlorine values therefrom, separating (i) pure hydrochloric acid and (ii) remaining products from the gaseous stream thus purified, and recycling such remaining products (ii) to the medium of chlorination.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: March 28, 1995
    Assignee: Elf Atochem S.A.
    Inventors: Yves Correia, Daniel Pellegrin