Patents by Inventor Hélène Lannibois-Drean

Hélène Lannibois-Drean 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: 7589144
    Abstract: The invention concerns granules obtainable by drying an inverse emulsion, dispersed in an external aqueous phase: a) the inverse emulsion comprising an internal aqueous phase, including a hydrophilic active material, dispersed in an internal organic phase, said inverse emulsion including at least a non-ionic surfactant and/or at least an amphiphilic block polymer, and/or at least a cationic surfactant; b) the external aqueous phase including: at least a polyalkylated non-ionic surfactant and/or at least a polalkylated amphiphilic non-ionic polymer; at least a water soluble or water dispersible polymer in solid form in the presence of a water content of not more than 10 wt. % relative to the weight of said polymer and whereof the glass transition temperature is higher than 25° C., preferably higher than 50° C. The granules, once dispersed, enable to obtain a multiple emulsion.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: September 15, 2009
    Assignee: Rhodia Chimie
    Inventors: Hélène Lannibois-Drean, Mikel Morvan, Laurent Taisne
  • Patent number: 7288575
    Abstract: The invention concerns a method for preparing an oil-in-water emulsion whereof the organic phase has a viscosity not less than 1 Pa.s, which consists in using an aqueous phase comprising at least a heat-thickening polymer having a viscosity jump between 25 and 80° C. so that the value of the ratio log 10 (viscosity at 80° C.)/log 10 (viscosity at 25° C.) is at least equal to 1, preferably at least equal to 2, the variation in viscosity being reversible; the amount of heat-thickening polymer being such that the aqueous phase viscosity is 0.2 to 5 times that of the organic phase at the temperature for preparing the emulsion; the latter being not less than the thickening temperature of the heat-thickening polymer.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: October 30, 2007
    Assignee: Rhodia Chimie
    Inventors: Hélène Lannibois-Drean, Mikel Morvan, Marie-Pierre Labeau, Christine Vidil
  • Publication number: 20060258795
    Abstract: The invention concerns granules obtainable by drying an inverse emulsion, dispersed in an external aqueous phase: a) the inverse emulsion comprising an internal aqueous phase, including a hydrophilic active material, dispersed in an internal organic phase, said inverse emulsion including at least a non-ionic surfactant and/or at least an amphiphilic block polymer, and/or at least a cationic surfactant; b) the external aqueous phase including: at least a polyalkylated non-ionic surfactant and/or at least a polalkylated amphiphilic non-ionic polymer; at least a water soluble or water dispersible polymer in solid form in the presence of a water content of not more than 10 wt. % relative to the weight of said polymer and whereof the glass transition temperature is higher than 25° C., preferably higher than 50° C. The granules, once dispersed, enable to obtain a multiple emulsion.
    Type: Application
    Filed: July 20, 2006
    Publication date: November 16, 2006
    Inventors: Helene Lannibois-Drean, Mikel Morvan, Laurent Taisne
  • Patent number: 7101931
    Abstract: The invention concerns granules obtainable by drying an inverse emulsion, dispersed in an external aqueous phase: a) the inverse emulsion comprising an internal aqueous phase, including a hydrophilic active material, dispersed in an internal organic phase, said inverse emulsion including at least a non-ionic surfactant and/or at least an amphiphilic block polymer, and/or at least a cationic surfactant; b) the external aqueous phase including: at least a polyalkylated non-ionic surfactant and/or at least a polalkylated amphiphilic non-ionic polymer; at least a water soluble or water dispersible polymer in solid form in the presence of a water content of not more than 10 wt. % relative to the weight of said polymer and whereof the glass transition temperature is higher than 25° C., preferably higher than 50° C. The granules, once dispersed, enable to obtain a multiple emulsion.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: September 5, 2006
    Assignee: Rhodia—Chimie
    Inventors: Hélène Lannibois-Drean, Mikel Morvan, Laurent Taisne
  • Publication number: 20050277727
    Abstract: The invention concerns granules obtainable by drying an inverse emulsion, dispersed in an external aqueous phase: a) the inverse emulsion comprising an internal aqueous phase, including a hydrophilic active material, dispersed in an internal organic phase, said inverse emulsion including at least a non-ionic surfactant and/or at least an amphiphilic block polymer, and/or at least a cationic surfactant; b) the external aqueous phase including: at least a polyalkylated non-ionic surfactant and/or at least a polalkylated amphiphilic non-ionic polymer; at least a water soluble or water dispersible polymer in solid form in the presence of a water content of not more than 10 wt. % relative to the weight of said polymer and whereof the glass transition temperature is higher than 25 ° C., preferably higher than 50° C. The granules, once dispersed, enable to obtain a multiple emulsion.
    Type: Application
    Filed: October 22, 2001
    Publication date: December 15, 2005
    Inventors: Helene Lannibois-Drean, Mikel Morvan, Laurent Taisne
  • Publication number: 20050228126
    Abstract: The invention concerns a method for preparing an oil-in-water emulsion whereof the organic phase has a viscosity not less than 1 Pa·s, which consists in using an aqueous phase comprising at least a heat-thickening polymer having a viscosity jump between 25 and 80 ° C. so that the value of the ratio log 10 (viscosity at 80° C.)/log 10 (viscosity at 25° C.) is at least equal to 1, preferably at least equal to 2, the variation in viscosity being reversible; the amount of heat-thickening polymer being such that the aqueous phase viscosity is 0.2 to 5 times that of the organic phase at the temperature for preparing the emulsion; the latter being not less than the thickening temperature of the heat-thickening polymer.
    Type: Application
    Filed: June 6, 2005
    Publication date: October 13, 2005
    Inventors: Helene Lannibois-Drean, Mikel Morvan, Marie-Pierre Labeau, Christine Vidil
  • Publication number: 20040241124
    Abstract: The invention relates to a method for stabilizing an aqueous formulation, comprising up to 40% by weight of one or several surfactants and at least one organic phase chosen from organic or mineral oils/greases/waxes, the products of alchoholysis of said oils/greases/waxes, essential oils, the mono-, di- and tri-glycerides, the fatty acids, the esters of said acids and the alcohols, individually or combined. According to said method, an emulsion is introduced into the aqueous composition, the continuous phase of which is at least one silicone, the dispersed phase is the organic phase as above stabilized by at least one graft or block copolymer, one fraction of which is soluble in the dispersed phase, the other soluble in the continuous phase, whereby the fraction soluble in the continuous phase is greater than the fraction soluble in the dispersed phase.
    Type: Application
    Filed: July 23, 2004
    Publication date: December 2, 2004
    Inventors: Helene Lannibois-Drean, Jean-Marc Ricca, Mathias Destarac, Philippe Olier
  • Publication number: 20040234475
    Abstract: The invention relates to emulsions comprising two non-aqueous, immiscible liquids, (L1) and (L2), whereby the liquid (L1), which is either the continuous or dispersed phase of the emulsion, is a silicone. The emulsion is further stabilized by at least one graft or block co-polymer of which one fraction is soluble in the dispersed phase the other in the continuous phase, the fraction soluble in the continuous phase being greater than the fraction soluble in the dispersed phase.
    Type: Application
    Filed: June 18, 2004
    Publication date: November 25, 2004
    Inventors: Helene Lannibois-Drean, Jean-Marc Ricca, Mathias Destarac, Philippe Olier
  • Publication number: 20040127579
    Abstract: The invention concerns a suspension of particles in an aqueous medium, obtainable by carrying out the following steps: (a) preparing an invert emulsion from an internal aqueous phase comprising at least an active hydrophilic substance, and an internal organic phase comprising at least a hydrophobic compound having a melting point not less than 35° C.
    Type: Application
    Filed: February 19, 2004
    Publication date: July 1, 2004
    Inventors: Helene Lannibois-Drean, Anne-Gilles Dreno
  • Publication number: 20040054076
    Abstract: The invention concerns a method for preparing an oil-in-water emulsion whereof the organic phase has a viscosity not less than 1 Pa.s, which consists in using an aqueous phase comprising at least a heat-thickening polymer having a viscosity jump between 25 and 80° C. so that the value of the ratio log 10 (viscosity at 80° C.)/log 10 (viscosity at 25° C.) is at least equal to 1, preferably at least equal to 2, the variation in viscosity being reversible; the amount of heat-thickening polymer being such that the aqueous phase viscosity is 0.2 to 5 times that of the organic phase at the temperature for preparing the emulsion; the latter being not less than the thickening temperature of the heat-thickening polymer.
    Type: Application
    Filed: October 17, 2003
    Publication date: March 18, 2004
    Inventors: Helene Lannibois-Drean, Mikel Morvan, Marie-Pierre Labeau
  • Patent number: 6528473
    Abstract: The invention concerns solid granulates of a system comprising at least a hydrophobic organic active substance (for example an active detergent substance) encapsulated in solid particles of an alkali-water soluble organic polymer derived by emulsion polymerisation, said particles being dispersed in and encapsulated by a matrix in a water soluble or water dispersible dry organic compound. The invention also concerns the use of said granulates in detergent compositions, in particular for cleaning hard surfaces or for washing clothes and the detergent compositions.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: March 4, 2003
    Assignee: Rhodia Chimie
    Inventors: Hélène Lannibois-Drean, Mikel Morvan, Daniel Joubert
  • Patent number: 6372697
    Abstract: This invention concerns the use, in a cold drawing lubricating solution, as adhesive and lubricating agent, for a steel wire trimmed with brass and rubber, of an aqueous suspension comprising at least a cobalt and/or nickel salt compound of a saturated or unsaturated carboxylic acid (i), or a phosphate ester (ii), or a cobalt and/or nickel boroacylate (iii); and at least a non-ionic or anionic surfactant; the compound (i), (ii), and/or (iii)/surfactant weight ratio ranging between 0.5 and 10. The invention also concerns said suspension and preparation methods thereof. The invention further concerns a cold drawing lubricating solution comprising said suspension.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: April 16, 2002
    Assignee: Rhodia Chimie
    Inventors: Gilles Lorentz, Hélène Lannibois-Drean