Patents by Inventor Jean-Pierre Lampin, deceased

Jean-Pierre Lampin, deceased 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).

  • Novel non ionic fluorinated compounds, their process of preparation and applications thereof as surfactants
    Patent number: 4859797
    Abstract: The invention relates to non ionic fluorinated compounds having the formula R.sub.F C hd 2H.sub.4 S(R)H, wherein R designates a C.sub.2 H.sub.4 X unit with X=O or S, or a chain exclusively comprising several such units, and two consecutive units can be identical or different, and R.sub.F is a perfluorinated alkyl group exclusive of compounds having the formula:R.sub.F C.sub.2 H.sub.4 SC.sub.2 H.sub.4 OH, R.sub.F C.sub.2 H.sub.4 S(C.sub.2 H.sub.4 O).sub.2 H and R.sub.F (C.sub.2 H.sub.4 S).sub.2 Hand the mixtures of such compounds, in particular, the mixtures of the above defined products differing from one another by the length of their perfluorinated chain, but having the hydrophilic portion of the molecule identical from one product to the other.To obtain them, a compound having the formula R.sub.F C.sub.2 H.sub.
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: August 22, 1989
    Assignee: Institut National de Recherche Chimique Appliquee
    Inventors: Jean-Pierre Lampin, deceased, Jeannine Robillart Lampin, heir, Corinne Lampin, heir, Sophie Lampin, heir, Aime Cambon, Francois Szonyi, Jean-Jacques Delpuech, Guy Serratrice, Gerard Thiollet, Louisette Lafosse