Patents Assigned to Rhodia Chimie
  • Patent number: 7884153
    Abstract: The invention concerns a method for preparing anisotropic silica aggregates comprising the following steps: a) contacting at least one polymer with non-aggregated silica particles and/or highly dispersed in an aqueous medium, with a ratio R, polymer weight to silica particle surface, ranging between 0.03 and 2 mg/m; 2; and whereof the electrostatic value of the silica particle surface is not less than the value of the charge of the silica particle surface measured in an aqueous phase without added salts at a pH not less than 7; b) consolidating the aggregates obtained at step a) either by heat treatment, or by precipitation of a mineral compound.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: February 8, 2011
    Assignees: Rhodia Chimie, C.N.R.S.
    Inventors: Lionel Ventelon, Julien Hernandez, Françoise Lafuma, Christophe Chassenieux, Christelle Perreur
  • Patent number: 7884225
    Abstract: The present invention relates to a process for the preparation of 3-chloropropyldimethylchlorosilane by hydrosilylation reaction in a reaction medium comprising dimethylhydrochlorosilane and allyl chloride, in the presence of a catalytically effective amount of di-?-chlorobis(?-1,5-cyclooctadiene)diiridium, the said process being characterized in that at least one auxiliary in the free or supported state selected from the group of compounds consisting of: (i) ketones, (ii) ethers, (iii) quinones, (iv) anhydrides, (v) unsaturated hydrocarbon compounds (UHC) having an aromatic nature and/or comprising at least one C?C double bond and/or at least one C?C triple bond, it being possible for these unsaturated bonds to be conjugated or nonconjugated, the said UHCs being linear or cyclic (mono- or polycyclic), having from 4 to 30 carbon atoms, having from 1 to 8 ethylenic and/or acetylenic unsaturations and optionally comprising one or more heteroatoms, (vi) and their mixtures, is added to the reaction medium, wi
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: February 8, 2011
    Assignee: Rhodia Chimie
    Inventors: Nathalie Guennouni, Jean-Christophe Galland
  • Patent number: 7884056
    Abstract: The invention relates to a composition that can form a gel comprising a copolymer. Said composition is an aqueous composition, and the copolymer is a star copolymer. The invention also relates to useful copolymers, especially for the inventive compositions.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: February 8, 2011
    Assignee: Rhodia Chimie
    Inventors: Denis Bendejacq, Claire Pitois, Katerina Karagianni
  • Publication number: 20110028376
    Abstract: The invention concerns a composition for cotton textile care in particular, comprising an anionic polysaccharide (in particular anionic polygalactomannan) having a mole weight higher than 250000. The composition can be a solid or liquid detergent formulation, a liquid rinsing and/or softening formulation, a drying additive contacted with wet textile in a dry textile, an aqueous ironing formulation, a prespotting washing additive deposited on the textile before a washing operation.
    Type: Application
    Filed: October 12, 2010
    Publication date: February 3, 2011
    Applicant: Rhodia Chimie
    Inventors: Ian Harrison, Eric Aubay
  • Patent number: 7868076
    Abstract: The instant invention relates to an aqueous paint composition comprising a mixture of: (1) an aqueous paint; (2) a colloidal dispersion of a cerium compound, said dispersion having a pH of at least 5, and comprising a water-soluble or water-dispersible polymer (i) obtained by polymerizing at least one monomer (I), corresponding to the following: (I): ethylenically unsaturated, linear or branched, aliphatic, cyclic or aromatic monocarboxylic or polycarboxylic acid, or anhydride; and, optionally, a monomer corresponding to II): a polyoxyalkylenated ester of an ethylenically unsaturated carboxylic acid; and (3) a base. The instant invention also relates to paints and varnishes containing said composition.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: January 11, 2011
    Assignee: Rhodia Chimie
    Inventors: Jean-François Berret, Mikel Morvan, Amit Sehgal
  • Patent number: 7858775
    Abstract: This invention relates to a process for preparing 2?-deoxynucleoside compounds or 2?-deoxynucleoside precursors using 2-dehydro-3-deoxy-D-gluconic acid (usually abbreviated as KDG) or its salts as a starting material. A variety of 2?-deoxynucleosides and their analogues are used as a starting material for synthesis or drug formulation in production of an antiviral, anticancer or antisense agent.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: December 28, 2010
    Assignees: Rhodia Chimie, Evologic S.A., Marliere Technologies Societe Civile
    Inventors: Volker Dóring, Denis Thibaut, Annett Kreimeyer, Philippe Marliere
  • Patent number: 7851023
    Abstract: An essential aim of the invention is a treatment which permits: (i) coating a textile material and/or threads, fibers and/or filaments making up the textile material, the silicone formulation cross-linking around the threads, fibers and/or filaments making up the textile material and forming a cross-linked silicone coating around the same and ii) durably imparting water-repellency and impermeability to said textile material without substantially affecting the intrinsic respirability of the textile material. Said aim is achieved by means of the present invention using at least one cross-linkable silicone formulation as a base for the textile coating material, particularly, of a textile material which may be used for the production of sports clothing.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: December 14, 2010
    Assignee: Rhodia Chimie
    Inventors: Martial Deruelle, Yves Giraud
  • Patent number: 7847110
    Abstract: The invention relates to a method for producing optionally substituted methylenedioxybenzene. The invention particularly relates to the production of methylenedioxybenzene. The inventive production method is characterized by the fact that it involves the reaction of an optionally substituted catechol with an aldehyde in the presence of a solid acid catalyst selected among: a titanium silicalite and a zeolite that is doped with tin and/or titanium.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: December 7, 2010
    Assignee: Rhodia Chimie
    Inventors: Roland Jacquot, Jean-Roger Desmurs
  • Patent number: 7846581
    Abstract: The field of the present invention relates to the field of batteries and of polymer electrolytes for batteries and more particularly to the field of lithium batteries. The invention relates to a composition which can be polymerized and/or crosslinked by dehydrocondensation for a battery electrolyte comprising: a) at least one organohydropolysiloxane (POS) (A) having, per molecule, at least 2 hydrogen atoms directly bonded to silicon atoms; b) at least one organohydroxypolysiloxane (POS) (B) having, per molecule, at least 2 —OH groups directly bonded to silicon atoms; c) an effective amount of a dehydrocondensation catalyst (C); and d) at least one electrolyte salt (D); with the condition that the POS (A) and/or the POS (B) comprise(s), per molecule, at least one siloxyl unit comprising at least one group directly bonded to a silicon atom comprising a polyoxyalkylene (Poa) ether functional group.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: December 7, 2010
    Assignee: Rhodia Chimie
    Inventors: Georges Barrandon, Catherine George, Carroll Vergelati, Yves Giraud
  • Patent number: 7846423
    Abstract: The present invention relates to a cosmetic composition comprising at least one diblock copolymer, as well as to the use of the said diblock copolymer as a modifier of properties of cosmetic compositions, more preferably of compositions for the skin and/or the hair. The diblock copolymer comprises two blocks, block A and block B, wherein block A is a polycationic block and block B is a neutral block.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: December 7, 2010
    Assignee: Rhodia Chimie
    Inventors: Bruno Bavouzet, Mathias Destarac, Pascal Herve, Agnieszka Zofia Wilczewska
  • Patent number: 7838613
    Abstract: The invention relates to polyorganosiloxane monocomponent compounds (POS) which are stable when stored without humidity and crosslinking into elastomer in the presence of water. The inventive compounds comprise at least one type of crosslinkable linear polyorganosiloxane (POS), a mineral filler and a crosslinking catalyst of formula (I) which provides said compound with an excellent compromise between cross linking kinetics and a storage stability (i.e. more than 6 months).
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: November 23, 2010
    Assignee: Rhodia Chimie
    Inventors: Marc Chaussade, Nathalie Guennouni
  • Patent number: 7838588
    Abstract: The invention relates to a dried emulsion. In particular, the invention relates to a dried emulsion containing a liquid hydrophobic phase and a water-soluble or water-dispersible polymeric matrix whose hydrophobic phase content is high. The invention also relates to a method for producing the dried emulsion and to uses of this emulsion. The utilized water-soluble matrix contains block copolymers.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: November 23, 2010
    Assignee: Rhodia Chimie
    Inventors: Sophie Deroo, Alain Senechal, Jean-Michel Mercier, Nadia Martin
  • Publication number: 20100279869
    Abstract: The present invention concerns an aqueous phytopathological formulation comprising a hydrosoluble salt of at least one aminophosphate or aminophosphonate type herbicide; at least one principal surfactant selected from alkylbetaines and alkyl(amidoalkyl)betaines, and at least one additive selected from at least one of the following compounds: (i) amines or etheramines comprising at least one hydrocarbon radical containing 2 to 24 carbon atoms, optionally polyalkoxylated; (ii) acid or non acid phosphate mono- or di-esters, optionally polyalkoxylated; and (iii) alkali metal, alkaline-earth metal, ammonium, alkylammonium, alkanolammonium, iron, zinc or manganese salts of a mineral acid.
    Type: Application
    Filed: December 11, 2007
    Publication date: November 4, 2010
    Applicant: Rhodia Chimie
    Inventors: Valerio Bramati, Joel Coret, Scott Edwards, Paul Gioia
  • Patent number: 7820752
    Abstract: The invention concerns the use as thickening agent of an aqueous composition comprising at least 5 wt. % of one or several phase-organized surfactant(s) comprising giant micelles whereof the average length represents at least four times the mean diameter, of at least a charged statistic amphiphilic polymer soluble in the aqueous composition, said amphiphilic polymer being used in a content such that the viscosity of the aqueous composition comprising the amphiphilic polymer is at least three times higher than that of the composition without amphiphilic polymer and than that of an aqueous composition comprising only the amphiphilic polymer. The invention also concerns aqueous compositions comprising said amphiphilic polymer, and are particularly designed for cosmetic uses.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: October 26, 2010
    Assignee: Rhodia Chimie
    Inventors: Bruno Bavouzet, Pascal Chapon, Dominic Wai-Kwing Yeung
  • Patent number: 7799304
    Abstract: The invention relates to a highly-structured precipitated silica having a low water uptake and high dispersibility in different pasty or solid matrices or media, elastomers or silicon, and to the preparation method thereof. The invention also relates to the use of said silica, for example, as a reinforcing filler in matrices based on elastomers (clear or semi-clear for shoe soles), in silicon matrices (in particular, for the coating of electric cables), as a filler and/or support and/or vehicle in different compositions (food compositions, cosmetic compositions, pharmaceutical compositions, compositions for the production of paints or paper, compositions for the production of porous membrane separators for batteries) or as a thickening agent in toothpastes.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: September 21, 2010
    Assignee: Rhodia Chimie
    Inventors: Adrien Dromard, Yvonick Chevallier, Rémi Valero, Dominique Petit
  • Patent number: 7790785
    Abstract: Silicone compositions particularly useful for the production of anti-fouling varnishes for application to support substrates, these providing an anti-fouling varnish for textiles covered with silicone elastomers which is economical, adhesive, non-slip and glossy; the subject varnishes comprise a crosslinkable silicone composition containing, per 100 parts by weight: 1, at least 80 parts by weight of: (1.1), 2., 0.1 to 10 parts of weight of: (1.2), 3., 0 to 10 parts by weight of at least one polydimethylisiloxane (PDMS) acrylate or epoxide, 4., 0 to 10 parts by weight of at least one silylated compound which includes at least one ultrafine filler, 7., 0 to 10 parts by weight of at least one thickener, and 8., 0 to 10 parts by weigh of at least one additional functional additive.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: September 7, 2010
    Assignee: Rhodia Chimie
    Inventors: Francis Lafaysse, Pierre Luciani, Didier Dhaler, Laurent Dumont, Jean-Marc Frances
  • Publication number: 20100221541
    Abstract: The invention relates to a novel method of preparing silicas and to highly-structured silicas having the following characteristics: a specific surface area CTAB (SCTAB) of between 40 and 525 m2/g; a specific surface area BET (SBET) of between 45 and 550 m2/g; an object size distribution width Ld ((d84?d16)/d50), which is measured by XDC particle size analysis after deagglomeration with ultrasound, of at least 0.91; and a pore-size distribution such that ratio V(d5?d50)/V(d5?d100) is at least 0.66. The invention also relates to the use of said silicas as polymer reinforcing fillers.
    Type: Application
    Filed: August 20, 2009
    Publication date: September 2, 2010
    Applicant: RHODIA CHIMIE,
    Inventors: Remi Valero, Julien Hernandez
  • Patent number: 7781614
    Abstract: The invention relates to a method of treating an impure organic composition of ammonium imide, one of the substituents of which imide ion is a sulfonyl carried by a perhalogenated, advantageously perfluorinated carbon, characterized in that said composition is subjected to a step of liquid-liquid extraction by means of an aqueous phase and containing, as impurity, at least one of the chemical species chosen from halides, sulfonates and sulfinates, in particular those whose sulfur is carried by a perhalogenated carbon.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: August 24, 2010
    Assignee: Rhodia Chimie
    Inventor: Bernard Besson
  • Patent number: 7776988
    Abstract: The invention relates to silicon oils, more particularly, to a novel method for the preparation of a silicon oil by polymerization and rearrangement of cyclic siloxanes in the presence of an alkaline catalyst and a co-catalyst which is a cryptand (macroheterobicyclic diamine) acting as a polymerization accelerator.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: August 17, 2010
    Assignee: Rhodia Chimie
    Inventors: Etienne Fleury, Jean-Manuel Mas, Kamel Ramdani
  • Patent number: 7776799
    Abstract: The invention concerns a method for cold rolling metals using an aqueous lubricant comprising: (1) at least a mixture based on at least an acid selected among saturated or unsaturated mono- or poly-carboxylic acids, comprising 5 to 40 carbon atoms; at least an acid phosphate ester of formula (RO)x-P(?O)(OH)x?, wherein: R is a hydrocarbon radical, optionally polyalkoxylated; x and x? being equal to 3; the carboxylic acid and/or the acid phosphate ester being optionally neutralized by an organic or mineral base; and (2) at least a natural or synthetic wax exhibiting a melting point not less than 50° C. and having an average particle size ranging between 0.5 and 10 ?m. The use of said lubricant enables to increase the productivity of the method by at least 15% relative to a method using a conventional lubricant.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: August 17, 2010
    Assignee: Rhodia Chimie
    Inventors: Dominique Raison, Jean-Guy Le Helloco