Patents by Inventor Jean-Jacques Delpuech

Jean-Jacques Delpuech 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).

  • Visco-elastic, isotropic materials based on water, fluorinate sufactants and fluorinated oils, process for their preparation, and their use in various fields, such as optics, pharmacology and electrodynamics
    Patent number: 5185099
    Abstract: These materials having the appearance and the consistency of gels are characterized in that they contain a very high proportion of water, of the order of from 60 to 98% weight, and that their structure is a microcellular compartmentalized structure having a very high density of water droplets enclosed in a fine surfactant membrane and contained in a continuous oil/surfactant phase, this structure being impermeable to water and permeable to hydrophobic compounds soluble in fluorocarbons.Use in the field of optics, fillers, cosmetics, pharmacology, lubricants, textiles, photochemistry and electrodynamics.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: February 9, 1993
    Assignee: Institut National de Recherche Chimique Appliquee
    Inventors: Jean-Jacques Delpuech, Louis Matos, El Mostafa Moumni, Jean-Claude Ravey, Claude Selve, Guy Serratrice, Marie-Jose Stebe, Aime Cambon, Gerard Thiollet
  • 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
  • Physical solvent absorption of carbon dioxide and hydrogen sulphide for the deacidification of industrial gaseous mixtures
    Patent number: 4162903
    Abstract: The present invention is related to a process for absorbing acid gases from industrial gaseous mixtures by washing under pressure with a solvent. The invention is concerned more particularly with the use of hexamethyl phosphorotriamide OP[N(CH.sub.3).sub.2 ].sub.3, pure or mixed with water, as a physical solvent of acid gases.This new physical solvent is of particular interest in the treatment of natural acid gases and refinery gases.
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: July 31, 1979
    Assignee: Societe Nationale Elf Aquitaine (Production)
    Inventors: Claude Blanc, Jean-Yves Chenard, Jean-Jacques Delpuech, Olivier Oliveau