Patents by Inventor Nathalie Guennount

Nathalie Guennount 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).

  • Method of preparing organo dialkylalkoxysilane
    Patent number: 7659418
    Abstract: The invention relates to the preparation of organodialkylalkoxysilane using a continuous method consisting in bringing an alkanol into continuous contact with an omega-haloalkyl dialkylhalosilane in a countercurrent reactor, such as a plate column or a packed column. The reaction is performed in the aforementioned countercurrent reactor in the presence or absence of a non-reactive solvent with scavenging of the hydrochloric acid formed. The omega-haloalkyl dialkylalkoxysilane thus formed is particularly suitable for use as a starting material for the preparation of organosilicon compounds containing sulphur having general formula (I) by means of sulphidisation reaction on an alkaline metal polysulphide.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: February 9, 2010
    Assignee: Rhodia Operations
    Inventors: Kamel Ramdani, Bernard Vogin, Nathalie Guennount
  • Method of preparing organo dialkylalkoxysilane
    Publication number: 20050245755
    Abstract: The invention relates to the preparation of organodialkylalkoxysilane using a continuous method consisting in bringing an alkanol into continuous contact with an omega-haloalkyl dialkylhalosilane in a countercurrent reactor, such as a plate column or a packed column. The reaction is performed in the aforementioned countercurrent reactor in the presence or absence of a non-reactive solvent with scavenging of the hydrochloric acid formed. The omega-haloalkyl dialkylalkoxysilane thus formed is particularly suitable for use as a starting material for the preparation of organosilicon compounds containing sulphur having general formula (I) by means of sulphidisation reaction on an alkaline metal polysulphide.
    Type: Application
    Filed: June 23, 2003
    Publication date: November 3, 2005
    Inventors: Kamel Ramdani, Bernard Vogin, Nathalie Guennount