Patents by Inventor Michel Peignier

Michel Peignier 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: 6359097
    Abstract: The present invention relates to multifunctionalized polyorganosiloxanes comprising, per molecule at least one functional siloxy unit Y having C1-C5 alkoxy radical and at least one other functional siloxy unit W having an halogenated or polyhalogenated alkyl, aralkyl or aryl; polyether ether; epoxidized alkyl; alkoxyalkyl; hydroxylated, carbonylated or esterified alkyl; phenol; and alkoxysilyl; and optionally at least one siloxy unit having a SiH group. The alkoxy functionality Y is introduced onto a suitable polyhydroorganosiloxane by a dehydrogenation/condensation reaction from the alcohol from which Y derives and then the non-hydrogen functionality W by a hydrosilylation reaction from the olefinic compound from which W derives. The multifunctionalized polyorganosiloxanes can be used as antiadhesion modulators in silicone compositions.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: March 19, 2002
    Assignee: Rhodia Chimie
    Inventors: Philippe Jost, Michel Peignier, Christian Priou
  • Patent number: 6271331
    Abstract: The present invention relates to multifunctionalized alkoxy, the alkoxy functionality Y being introduced onto a suitable polyhydroorganosiloxane by a dehydrogenation/condensation reaction from the alcohol from which Y derives and then the functionality W by a hydrosilylation reaction from the olefinic compound form which W derives. The multifunctionalized alkoxy polyorganosiloxanes can be used as antiadhesion modulators in silicone compositions and as silica covering agents in silicone compositions containing fillers.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: August 7, 2001
    Inventors: Michel Gay, Philippe Jost, Michel Peignier, Christian Priou
  • Patent number: 6140447
    Abstract: The present invention relates to multifunctionalized alkoxy, the alkoxy functionality Y being introduced onto a suitable polyhydrooorganosiloxane by a dehydrogenation/condensation reaction from the alcohol from which Y derives and then the functionality W by a hydrosilylation reaction from the olefinic compound from which W derives. The multifunctionalized alkoxy polyorganosiloxanes can be used as antiadhesion modulators in silicone compositions and as silica covering agents in silicone compositions containing fillers.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: October 31, 2000
    Assignee: Rhodia Chimie
    Inventors: Michel Gay, Philippe Jost, Michel Peignier, Christian Priou
  • Patent number: 6037407
    Abstract: A cosmetic composition comprising an aqueous emulsion of organopolysiloxanes selected from the group consisting of silicone oils, gums, resins and mixtures therein which is prepared in a single kneading step which is sufficient to produce an emulsion having a particle size of 0.1 to 5 micrometers is provided.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: March 14, 2000
    Assignee: Rhone Poulenc Chimie
    Inventors: Paul-Joel Derian, Michel Feder, Jean-Pierre Paillet, Michel Peignier, Alain Senechal, Jean Ulrich
  • Patent number: 5763505
    Abstract: A method for preparing oil-in-water emulsions of oils, gums or silicone resins by kneading a mixture of (1) a silicone phase (A) with a viscosity of at least 3 Pas or a consistency of at least 200, and (2) an aqueous phase comprising water, at least one surfactant (B) and optionally at least one water-soluble thickening polymer (C), wherein the relative amounts of water, (B) and optionally (C) are such that the aqueous phase preferably has at least as much viscosity or consistency as the silicone phase (A), said kneading being performed for a sufficient time and with sufficient shear to give an oil-in-water emulsion having a particle size of 0.1-5 .mu.m; and optionally by diluting the medium in water.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: June 9, 1998
    Assignee: Rhone Poulenc Chimie
    Inventors: Paul-Joel Derian, Michel Feder, Jean-Pierre Paillet, Michel Peignier, Alain Senechal, Jean Ulrich
  • Patent number: 5756317
    Abstract: Heteropolysaccharide biopolymers well adopted as thickening agents are improvedly produced by microbially fermenting a carbohydrate nutrient medium, said nutrient medium comprising an oil-in-water emulsion of a discontinuous oily phase dispersed within a continuous aqueous phase.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: May 26, 1998
    Assignee: Rhone-Poulenc Specialities Chimiques
    Inventors: Veronique Leproux, Michel Peignier, Patrick Cros, Jeanine Beucherie, Yves Kennel
  • Patent number: 5087443
    Abstract: The invention relates to a silicon/water emulsion comprising, in an aqueous medium:1/ an organopolysiloxane containing a diester functional group containing, per molecule, at least one unit of formula:ZR.sub.a SiO.sub.(3-a)/2where Z has the formula: ##STR1## where the symbols R' are C.sub.1 -C.sub.12 monovalent saturated hydrocarbon, C.sub.2 -C.sub.12 alkoxyalkyl or C.sub.6 -C.sub.12 aryl, alkylaryl or arylalkyl radicals, the symbol X is H or CH.sub.3, the symbol W is a covalent bond or a C.sub.1 -C.sub.4 alkylene radical, the symbols R are C.sub.1 -C.sub.20 alkyl, vinyl, phenyl, 3,3,3-trifluoropropyl or hydroxyl radicals, only one of the radicals R per silicon atom denoting hydroxyl, a is equal to 0, 1 or 2;2/ an emulsifier chosen from anionic, cationic, amphoteric or nonionic surfactants. Application: to the treatment of textile fibers, to the coating of flexible substrates and to the cosmetic or dermatological treatment of hair or of the skin.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: February 11, 1992
    Assignee: L'Oreal
    Inventors: Francois Chizat, Michel Peignier, Jean F. Grollier, Claude Dubief
  • Patent number: 4954539
    Abstract: Aqueous silicone emulsions, especially useful for rendering a wide variety of substrates nonadhesive/water-repellent by polycondensation crosslinking, contain (a) an .alpha.,.omega.-dihydroxydiorganopolysiloxane, (b) an organohydropolysiloxane containing at least 3 hydrogen atoms bonded to silicon atoms per molecule, (c) a polyvinyl alcohol, (d) a nonionic emulsifying agent, and (e) a crosslinking catalytically effective amount of a monochelate of pentacoordinated tin of valency IV.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: September 4, 1990
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jacques Cavezzan, Michel Peignier
  • Patent number: 4938983
    Abstract: Suspensions of solid particulates in aqueous media, useful, e.g., as thickeners in a wide variety of foodstuff and industrial applications, are sedimentations stabilized by incorporating therein a stabilizing amount of xanthan/carob gum, optionally starch admixture.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: July 3, 1990
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Michel Peignier, Marie-Madeleine Besnard
  • Patent number: 4894335
    Abstract: Stable oil-in-water emulsions are prepared containing a relatively high concentration of from 8 to 60% by weight of a heteropolysaccharide bipolymer, e.g., xanthan gum preferably, the emulsions contain greater than 15 up to 60% biopolymer, 40 to 99 parts of an aqueous phase containing 10 to 60% by weight biopolymer and 40% to 90% by weight water, 1 to 60 parts oil and 1 to 40% with respect to the aqueous phase and oil of a surface active agent. The emulsions are prepared by combining powdered biopolymer with water, oil and surfactant or by concentrating an oil-in-water emulsion containing the biopolymer such as by ultrafiltration. A fermentation wort containing the biopolymer may be used in preparing the emulsion.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: January 16, 1990
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Michel Peignier, Michel Garcia, Alain Senechal, Pierre Gagne, Dominique Lespinasse, Jean-Bernard Chaux
  • Patent number: 4525515
    Abstract: Storage-stable, pumpable, concentrated polymer suspensions, well adapted for use as thickening and flocculating agents, are comprised of (i) a water-soluble polymer, (ii) at least one water-soluble surfactant, and (iii) water, the amount of water being less than about 30% by weight of the total weight thereof.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: June 25, 1985
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Michel Peignier, Claude Renault
  • Patent number: 4378968
    Abstract: Process for preventing soil redeposition onto textile articles made of natural, synthetic or artificial fibers or a blend thereof, during dry cleaning operations using stabilized perchloroethylene.It is characterized in that a sufficient amount of at least one C.sub.4 to C.sub.6 alcohol, chosen from amongst those having a boiling point of between 95.degree. and 140.degree. C. and those forming, with the perchloroethylene, an azeotrope having a boiling point of between 80.degree. and 130.degree. C., is incorporated into this perchloroethylene.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: April 5, 1983
    Assignee: Chloe Chimie
    Inventors: Michel Peignier, Claude Renault
  • Patent number: 4227883
    Abstract: Process for anti-redeposition of staining substances on textiles of natural, synthetic or artificial fibers or mixtures thereof in the course of operations of dry cleaning or de-oiling by means of suitably stabilized perchloroethylene in which a sufficient amount of an additive represented by at least one monoketone compound having a boiling point below or equal to 160.degree. C. and, preferably lower than 140.degree. C., is added as an anti-redeposition additive.
    Type: Grant
    Filed: November 1, 1978
    Date of Patent: October 14, 1980
    Assignee: Rhone Poulenc Industries
    Inventors: Michel Peignier, Claude Renault