Patents by Inventor Chantal Poulet

Chantal Poulet 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).

  • Process for obtaining aminopolyamide-epichlorohydrin resins with a 1,3-dichloro-2-propanol content which is undetectable by ordinary means of vapor-phase chromatography
    Patent number: 6342580
    Abstract: A 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 consists of passing the products resulting from the successive condensation of aminopolyamides and epichlorohydrin through two columns of activated carbon. In this way, aqueous resins are obtained which are free of toxic products, and which are particularly valuable as wet strength additives in the manufacture of papers for medical, cosmetic or food contact uses.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: January 29, 2002
    Assignee: Atofina
    Inventors: Henri Laurent, Thierry Dreyfus, Chantal Poulet, Serge Quillet
  • Process of manufacture of phenolic resins for the manufacture of products containing glass fibres and mineral fibres
    Patent number: 6090883
    Abstract: A process of manufacture of phenolic resins using calcium catalysis not comprising any filtration stage. This result is obtained by holding back the precipitation of the calcium species by the combined use of a chelatant/sequestrant and of a dispersing anionic polymer. Resins which are stable in storage and with excellent water tolerance.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: July 18, 2000
    Assignee: Elf Atochem
    Inventors: Stephane Fouquay, Chantal Poulet, Jean-Marc Benoit