Patents by Inventor Marie-Luce Prevotat

Marie-Luce Prevotat 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).

  • Patent number: 5362707
    Abstract: The present invention relates to new plant-protection suspo-emulsions. More specifically, the invention relates to a suspo-emulsion of a solid active substance, having a melting point greater than or equal to 45.degree. C. and which is substantially insoluble in water. The suspo-emulsion comprises at least one oil; a first surface-active system comprising at least sucroglycerides; the solid active substance; and either (A) a nonionic or anionic surface-active agent, or (B) a second surface-active system containing sucroglycerides and at least one compound selected from the group consisting of an alkoxylated triglyceride, an alkoxylated fatty acid, a sorbitan ester, and an alkoxylated sorbitan ester, and optionally a phospholipid.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: November 8, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Francois Fiard, Jean-Michel Mercier, Marie-Luce Prevotat
  • Patent number: 5290751
    Abstract: The present invention relates to a new aqueous plant-protection suspensions. It more particularly relates to a concentrated aqueous suspension of solid active substance having a melting point greater than or equal to 45.degree. C. and which is substantially insoluble in water. The suspension comprises a solid active substance; sucroglycerides; at least one compound selected from an alkoxylated triglyceride, an alkoxylated fatty acid, a sorbitan ester, and an alkoxylated sorbitan ester; a wetting agent, when required; and water.The suspensions prepared in accordance with the present invention can be diluted to the concentration desired by the user without problems of flocculation or sedimentation.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: March 1, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Francois Fiard, Marie-Luce Prevotat