Patents by Inventor Camille Disdier

Camille Disdier 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).

  • Preparation of para-acyloxybenzene sulfonates
    Patent number: 4883612
    Abstract: p-Acyloxybenzene sulfonates, well suited for detergency applications, are facilely and rapidly prepared by acylating an alkali or alkaline earth metal, or ammonium p-phenol sulfonate, with an anhydride of a straight or branched chain carboxylic acid having from 7 to 12 carbon atoms, in a polar aprotic solvent and in the presence of a catalytically effective amount of an alkali or alkaline earth metal salt of a straight or branched chain aliphatic carboxylic acid having from 7 to 12 carbon atoms.
    Type: Grant
    Filed: May 14, 1987
    Date of Patent: November 28, 1989
    Assignee: Rhone-Poulenc Chimie de Base
    Inventors: Jose Moyne, Camille Disdier
  • Process for the halogenation, nitration and fluorination of aromatic derivatives
    Patent number: 4876376
    Abstract: A process for the halogenation (bromination or chlorination)/nitration/fluorination of aromatic derivatives substituted by at least one group containing a halogenoalkyl unit. The aromatic derivative is reacted with a halogen and a nitrating agent in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-protecting or pharmaceutical activity.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: October 24, 1989
    Assignee: Rhone-Poulenc Specialistes Chimiques
    Inventors: Michael Desbois, Camille Disdier
  • Process for the preparation of N-2-alkenyl-m-trifluoromethylanilines
    Patent number: 4701560
    Abstract: A process for the preparation of N-2-alkenyl-meta-trifluoromethylanilines by the condensation, in an aqueous medium, of an allyl halide with a meta-trifluoromethylaniline in the presence of (1) an alkali metal carbonate, alkali metal hydrogen carbonate or alkali metal hydroxide and (2) a catalytic quantity of tertiary amine.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: October 20, 1987
    Assignee: Rhone-Poulenc Specialties Chimiques
    Inventors: Guy Regimbeau, Gerard Augelmann, Camille Disdier
  • Process for the chlorination of aromatic derivatives
    Patent number: 4621160
    Abstract: A process for the chlorination of aromatic derivatives. The aromatic derivative is reacted with chlorine gas in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-protecting or pharmaceutical activity.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: November 4, 1986
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Michel Desbois, Camille Disdier
  • Process for the preparation of trifluoroacetic anhydride
    Patent number: 4595541
    Abstract: The present invention relates to a process for the preparation of trifluoroacetic anhydride which comprises bringing together trifluoroacetic acid with the anhydride of an .alpha.-halogenated acid.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: June 17, 1986
    Assignee: Rhone Poulenc Specialties Chimiques
    Inventors: Louis Amiet, Camille Disdier
  • Preparation of para-acyloxybenzene sulfonates
    Patent number: 4588532
    Abstract: p-Acyloxybenzene sulfonates, well suited for detergency applications, are facilely and rapidly prepared by acylating an alkali or alkaline earth metal, or ammonium p-phenol sulfonate, with an anhydride of a straight or branched chain carboxylic acid having from 7 to 12 carbon atoms, in a polar aprotic solvent and in the presence of a catalytically effective amount of an organic sulfonic acid.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: May 13, 1986
    Assignee: Rhone-Poulenc Chimie de Base
    Inventors: Jose Moyne, Camille Disdier
  • Process for the simultaneous halogenation and fluorination of aromatic derivatives
    Patent number: 4575571
    Abstract: A process for the stimulaneous halogenation and fluorination of aromatic derivatives substituted by at least one group containing a halogenoalkyl unit. The aromatic derivative is reacted with the halogen in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-protecting or pharmaceutical activity.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: March 11, 1986
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Michel Desbois, Camille Disdier
  • Method of preparing orthotrifluoromethyl aniline
    Patent number: 4387246
    Abstract: A process for preparing orthotrifluoromethyl aniline from trifluoromethyl benzene is disclosed.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: June 7, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Camille Disdier, Jacques-Pierre Martinaud, John W. Sullivan, Jr.