Patents by Inventor Pascal Herve
Pascal Herve 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).
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Publication number: 20250092303Abstract: A viscoelastic surfactant formulation may include a zwitterionic surfactant with a general formula (I): where A is a C or SO, E1 is a linear or branched, saturated or unsaturated hydrocarbon chain having 1 to 4 carbon atoms, R1 and R2 are selected from alkyl groups of from 1 to about 4 carbon atoms, and R3 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms or is —(CH2)n NHC(O)—R4, where R4 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms and n ranges from 1 to 6; a synergistic co-surfactant containing an alkoxylate co-surfactant; and at least one miscible solvent.Type: ApplicationFiled: November 22, 2023Publication date: March 20, 2025Applicant: ENERGY SOLUTIONS (US) LLCInventors: Ahmed I. Rabie, Arnaud Cadix, Rose Ndong, Pascal Herve, Qi Qu, Jian Zhou
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Publication number: 20240191127Abstract: A viscoelastic surfactant formulation may include a zwitterionic surfactant with a general formula (I): where A is a C or SO, E1 is a linear or branched, saturated or unsaturated hydrocarbon chain having 1 to 4 carbon atoms, R1 and R2 are selected from alkyl groups of from 1 to about 4 carbon atoms, and R3 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms or is —(CH2). NHC(O)—R4, where R4 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms and n ranges from 1 to 6; a synergistic co-surfactant containing an alkoxylate co-surfactant; and at least one miscible solvent.Type: ApplicationFiled: November 22, 2023Publication date: June 13, 2024Applicant: ENERGY SOLUTIONS (US) LLCInventors: Ahmed I. Rabie, Arnaud Cadix, Rose Ndong, Pascal Herve, Qi Qu, Jian Zhou
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Publication number: 20240182778Abstract: A viscoelastic surfactant formulation may include a zwitterionic surfactant with a general formula (I): where A is a C or SO, E1 is a linear or branched, saturated or unsaturated hydrocarbon chain having 1 to 4 carbon atoms, R1 and R2 are selected from alkyl groups of from 1 to about 4 carbon atoms, and R3 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms or is —(CH2)n NHC(O)—R4, where R4 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms and n ranges from 1 to 6; a synergistic co-surfactant containing a primary, secondary, or tertiary amine; amido group; amine oxide; or combinations thereof; and at least one miscible solvent.Type: ApplicationFiled: November 22, 2023Publication date: June 6, 2024Applicant: ENERGY SOLUTIONS (US) LLCInventors: Ahmed I. Rabie, Arnaud Cadix, Rose Ndong, Pascal Herve, Qi Qu, Jian Zhou
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Patent number: 11708525Abstract: Methods of acidizing a subterranean formation penetrated by a wellbore that include the steps of (a) injecting into the wellbore at a pressure below subterranean formation fracturing pressure a treatment fluid having a first viscosity and including an aqueous acid and a gelling agent selected from the group consisting of Formulas I-XI and combinations thereof; (b) forming at least one void in the subterranean formation with the treatment fluid; and (c) allowing the treatment fluid to attain a second viscosity that is greater than the first viscosity.Type: GrantFiled: June 7, 2021Date of Patent: July 25, 2023Assignee: RHODIA OPERATIONSInventors: Rose Ndong, Olivier Back, Pascal Herve, Jian Zhou
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Patent number: 11041113Abstract: Methods of acidizing a subterranean formation penetrated by a wellbore that include the steps of (a) injecting into the wellbore at a pressure below subterranean formation fracturing pressure a treatment fluid having a first viscosity and including an aqueous acid and a gelling agent selected from the group consisting of Formulas I-XI and combinations thereof; (b) forming at least one void in the subterranean formation with the treatment fluid; and (c) allowing the treatment fluid to attain a second viscosity that is greater than the first viscosity.Type: GrantFiled: February 21, 2019Date of Patent: June 22, 2021Assignee: RHODIA OPERATIONSInventors: Rose Ndong, Olivier Back, Pascal Herve, Jian Zhou
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Patent number: 10577310Abstract: The present invention relates to a new process for synthesizing an amido alkyl betaine starting from a linear alcohol having from 8 to 22 carbon atoms, to an amido alkyl betaine prepared by the process with increased viscosity in water, and also to use thereof as a viscoelastic surfactant in oil and gas applications and home personal care applications. The present invention also relates to a process for synthesizing an amido amine starting from a linear alcohol having from 8 to 22 carbon atoms, and to an amido amine prepared by the process.Type: GrantFiled: April 4, 2017Date of Patent: March 3, 2020Assignee: RHODIA OPERATIONSInventors: Olivier Back, Pascal Herve, Philippe Marion
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Patent number: 9090727Abstract: A polymer includes (a) one or more first monomeric units, each independently comprising at least one bicycloheptyl-polyether, bicycloheptenyl-polyether or branched (C5-C50)alkyl-polyether group per monomeric unit, wherein the bicycloheptyl-polyether or bicycloheptenyl-polyether group may optionally be substituted on one or more ring carbon atoms by one or two (C1-C6)alkyl groups per carbon atom, and (b) one or more second monomeric units, each independently comprising at least one pendant linear or branched (C5-C50)alkyl-polyether group per monomeric unit, provided that the first and second monomeric units cannot both comprise a branched (C5-C50)alkyl-polyether group and is useful as a component in liquid compositions, such as aqueous latex coating compositions, personal care compositions, home care compositions, and institutional or industrial care compositions.Type: GrantFiled: June 19, 2014Date of Patent: July 28, 2015Assignee: RHODIA OPERATIONSInventors: Lawrence Hough, Wojciech Bzducha, Pascal Herve, Pierre Hennaux, Andrew Douglass, Monique Adamy, Inigo Gonzalez
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Patent number: 9080135Abstract: Composition including freeze thaw stability polymer such as a copolymer having a weight average molecular weight of at least about 30,000 grams per mole, a blend of a first polymer and a second polymer, a crosslinked alkali swellable acrylate copolymer, or at least one polymerizable reactive alkoxylated acrylate monomer. The copolymer has one or more first monomeric units and one or more second monomeric units. The one or more first monomeric units each independently including at least one bicycloheptyl-polyether, bicycloheptenyl-polyether or branched (C5-C50)alkyl-polyether group per monomeric unit. The bicycloheptyl-polyether or bicycloheptenyl-polyether group may optionally be substituted on one or more ring carbon atoms by one or two (C1-C6)alkyl groups per carbon atom. The one or more second monomeric units each independently including at least one pendant linear or branched (C5-C50)alkyl-polyether group per monomeric unit.Type: GrantFiled: February 14, 2011Date of Patent: July 14, 2015Assignee: RHODIA OPERATIONSInventors: Lawrence Alan Hough, Wojciech Bzducha, Pascal Herve, Pierre Hennaux, Mary O'Rourke, Ericka Park
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Patent number: 8784786Abstract: A polymer includes (a) one or more first monomeric units, each independently comprising at least one bicycloheptyl-polyether, bicycloheptenyl-polyether or branched (C5-C50)alkyl-polyether group per monomeric unit, wherein the bicycloheptyl-polyether or bicycloheptenyl-polyether group may optionally be substituted on one or more ring carbon atoms by one or two (C1-C6)alkyl groups per carbon atom, and (b) one or more second monomeric units, each independently comprising at least one pendant linear or branched (C5-C50)alkyl-polyether group per monomeric unit, provided that the first and second monomeric units cannot both comprise a branched (C5-C50)alkyl-polyether group and is useful as a component in liquid compositions, such as aqueous latex coating compositions, personal care compositions, home care compositions, and institutional or industrial care compositions.Type: GrantFiled: February 14, 2011Date of Patent: July 22, 2014Assignee: Rhodia OperationsInventors: Lawrence Hough, Wojciech Bzducha, Pascal Herve, Pierre Hennaux, Andrew Douglass, Monique Adamy, Inigo Gonzalez
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Patent number: 8454866Abstract: The invention relates to a process for the preparation of particles based on a thermoplastic polymer with a mean diameter of less than 1 mm. The process of the invention comprises more particularly a stage of preparation of a composition comprising the thermoplastic polymer and an additive, in the molten state, of cooling the composition and of disintegration of the thermoplastic polymer dispersion.Type: GrantFiled: October 6, 2005Date of Patent: June 4, 2013Assignee: Rhodia ChimieInventors: Pascal Herve, Christophe Paulo, Eric Roche, Mare Labeille, Franck Touraud
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Patent number: 8444886Abstract: Controlled geometry particles of thermoplastic polymers are prepared from compositions containing the thermoplastic polymer and two additives, in the molten state, by cooling the molten composition and disintegrating the resulting dispersion of thermoplastic polymer; powders obtained therefrom advantageously have mean particle diameters ranging from 0.1 to 800 ?m and are useful additives in, e.g., paints and coatings.Type: GrantFiled: April 3, 2007Date of Patent: May 21, 2013Assignee: Rhodia OperationsInventor: Pascal Herve
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Publication number: 20110243873Abstract: A polymer includes (a) one or more first monomeric units, each independently comprising at least one bicycloheptyl-polyether, bicycloheptenyl-polyether or branched (C5-C50)alkyl-polyether group per monomeric unit, wherein the bicycloheptyl-polyether or bicycloheptenyl-polyether group may optionally be substituted on one or more ring carbon atoms by one or two (C1-C6)alkyl groups per carbon atom, and (b) one or more second monomeric units, each independently comprising at least one pendant linear or branched (C5-C50)alkyl-polyether group per monomeric unit, provided that the first and second monomeric units cannot both comprise a branched (C5-C50)alkyl-polyether group and is useful as a component in liquid compositions, such as aqueous latex coating compositions, personal care compositions, home care compositions, and institutional or industrial care compositions.Type: ApplicationFiled: February 14, 2011Publication date: October 6, 2011Applicant: RHODIA OPERATIONSInventors: Lawrence Hough, Wojciech Bzducha, Pascal Herve, Pierre Hennaux, Andrew Douglass, Monique Adamy, Inigo Gonzalez
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Publication number: 20110003523Abstract: The invention relates to an agent for the hydrophilisation of an organic plastic material such as a thermoplastic polymer, wherein said hydrophilisation agent is selected from optionally polyalkoxylated ester phosphates in their acid form or salt form. The invention also relates to objects made of thermoplastic polymers having surfaces hydrophilised by the agents of the invention.Type: ApplicationFiled: October 16, 2008Publication date: January 6, 2011Inventors: Pascal Herve, Roland Durand, Sylvie Touzet
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Patent number: 7846423Abstract: 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: GrantFiled: May 11, 2007Date of Patent: December 7, 2010Assignee: Rhodia ChimieInventors: Bruno Bavouzet, Mathias Destarac, Pascal Herve, Agnieszka Zofia Wilczewska
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Publication number: 20100009189Abstract: Controlled geometry particles of thermoplastic polymers are prepared from compositions containing the thermoplastic polymer and two additives, in the molten state, by cooling the molten composition and disintegrating the resulting dispersion of thermoplastic polymer; powders obtained therefrom advantageously have mean particle diameters ranging from 0.1 to 800 ?m and are useful additives in, e.g., paints and coatings.Type: ApplicationFiled: April 3, 2007Publication date: January 14, 2010Applicant: RHODIA SERVICESInventor: Pascal Herve
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Publication number: 20090304757Abstract: The present invention relates to cosmetic compositions used in particular in the care and makeup field. The invention relates to cosmetic compositions for making up and/or caring for keratin materials such as the skin, lips, nails, head hair, eyelashes, eyebrows or body hair of human beings. It relates more particularly to cosmetic compositions comprising a powdered thermoplastic polymer, and also to the use of this powder for improving the properties of cosmetic compositions.Type: ApplicationFiled: July 6, 2007Publication date: December 10, 2009Applicant: RHODIA OPERATIONSInventors: Pascal Herve, Minou Nabavi
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Patent number: 7579400Abstract: The invention relates to particles comprising: at least one ionically-charged water-soluble polymer; at least one surfactant having an ionic charge opposite to that of said polymer; and at least one water-soluble block copolymer having at least one non-ionic hydrophilic block and at least one non-ionic hydrophobic or ionic block. The invention also relates to a method of obtaining such particles consisting in: preparing a first aqueous mixture comprising the water-soluble, ionically-charged polymer and, if necessary, the water-soluble block copolymer if said copolymer has the same charge; subsequently, a second mixture is added to the above mixture, said second mixture comprising the surfactant and, if necessary, the water-soluble block copolymer if said copolymer has the same charge as the surfactant or if it is not ionically charged.Type: GrantFiled: December 10, 2002Date of Patent: August 25, 2009Assignee: Rhodia ChimieInventors: Bruno Bavouzet, Jochen Beyermann, Pascal Herve
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Patent number: 7531597Abstract: The invention relates to a formulation comprising an ionic compound and a polyionic polymer. The invention more specifically relates to an improved formulation thereof, further comprising a copolymer. The improved formulation avoids phase-separation of colloidal particles comprising the ionic compound and the polyionic polymer. The formulation comprises a copolymer comprising two moieties A and B, wherein moiety A is polyionic in the pH conditions of the formulation, and moiety B is neutral in the pH conditions of the formulation.Type: GrantFiled: April 13, 2005Date of Patent: May 12, 2009Assignee: Rhodia ChimieInventors: Pascal Herve, Mathias Destarac, Olivier Anthony, Bruno Bavouzet, Mathieu Joanicot, Agnieszka Zofia Wilczewska
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Publication number: 20090072424Abstract: The invention relates to a process for the preparation of particles based on a thermoplastic polymer with a mean diameter of less than 1 mm. The process of the invention comprises more particularly a stage of preparation of a composition comprising the thermoplastic polymer and an additive, in the molten state, of cooling the composition and of disintegration of the thermoplastic polymer dispersion.Type: ApplicationFiled: October 6, 2005Publication date: March 19, 2009Inventors: Pascal Herve, Christophe Paulo, Eric Roche, Mare Labeille, Franck Touraud
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Patent number: 7473730Abstract: The invention relates to a method for depositing a polymer onto a surface, by applying an aqueous composition, preferably an aqueous composition, onto said surface. The invention also relates to a method for making the composition. The composition comprise a block copolymer, comprising at least two blocks A and B, wherein block A is a polyionic block and block B is a neutral block.Type: GrantFiled: April 13, 2005Date of Patent: January 6, 2009Assignee: Rhodia ChimieInventors: Natalie Cadena, Mathias Destarac, Pascal Herve, Agnieszka Zofia Wilczewska