Abstract: The present invention relates to a method for enhanced oil recovery by flushing an underground formation, comprising the injection into the underground formation of an aqueous composition comprising microgels having at least one crosslinked polymer, characterized in that the polymer is crosslinked with at least one crosslinking agent capable of being degraded under the temperature conditions of the underground formation, and a content of crosslinking agent between 1 and 90 ppm per mole with respect to the total number of moles of monomer constituting the polymer.

Abstract: The present invention relates to a method for determining the anionic charge density of at least one polymer present in a sample, according to the following steps: bringing the at least one polymer present in the sample into contact with, and enabling the interaction thereof with, a developer solution comprising lanthanide (III) ions, exciting the sample at an excitation wavelength ?exc and detecting, by time-resolved photoluminescence, a signal originating from the lanthanide (III) ions that have interacted with the at least one polymer at an emission wavelength ?em, and determining the anionic charge density of the at least one polymer of the sample using the signal detected at the emission wavelength ?em.

Abstract: A method for displaying a mixed reality image, including provision of a display assembly including a camera and a display, acquisition of a first image by the camera according to actual image capturing characteristics, the first image being an image of a scene in the field of view of a user, extraction, from the first image, of actual illumination and position characteristics, selection of virtual elements to be integrated into the first image, modification of the virtual elements according to the actual image capturing, illumination and position characteristics, integration of the modified virtual elements in the first image to obtain a second image, and display of the second image on the display.

Abstract: The invention concerns a method for preparing a dispersion of a hydrophilic phase in a lipophilic phase, comprising:—a hydrophilic phase comprising at least one water-soluble (co)polymer, —a lipophilic phase, —at least one interface polymer consisting of at least one monomer of formula (I): Formula (I) in which, —R1, R2, R3 are separately a hydrogen atom, a methyl group, a carboxylate group and Z—X, —Z is chosen from the group comprising C(?O)—O; C(?O)—NH; O—C(?O); NH—C(?O)—NH; NH—C(?O)—O; and a saturated or unsaturated, substituted or unsubstituted carbon chain comprising 1 to 20 carbon atoms capable of comprising one or more heteroatoms chosen from nitrogen and oxygen, —X is a group chosen from the alkanolamides, sorbitan esters, ethoxylated sorbitan esters, glyceryl esters, and polyglycosides; and comprising a saturated or unsaturated, linear, branched or cyclic, optionally aromatic, hydrocarbon chain.

Abstract: A method for displaying a mixed reality image, including provision of a display assembly including a camera and a display, acquisition of a first image by the camera according to actual image capturing characteristics, the first image being an image of a scene in the field of view of a user, extraction, from the first image, of actual illumination and position characteristics, selection of virtual elements to be integrated into the first image, modification of the virtual elements according to the actual image capturing, illumination and position characteristics, integration of the modified virtual elements in the first image to obtain a second image, and display of the second image on the display.

Abstract: The present invention concerns a method for determining the concentration of cationic polymers present in a sample, according to the following steps: —bringing the cationic polymer or polymers present in the sample into contact with, and enabling the interaction thereof with, a developer solution comprising lanthanide (III) ions and at least one bonding agent, and —exciting the sample at an excitation wavelength ?exc and detecting, by time resolved photoluminescence, a signal originating from the lanthanide (III) ions having interacted with the at least one bonding agent having previously interacted with the cationic polymer or polymers, at an emission wavelength ?em, and —determining the cationic polymer concentration of the sample by using the signal detected at the emission wavelength ?em, the sample originating from water originating from municipal or industrial water or sludge treatment processes.

Abstract: The present invention relates to a method for enhanced oil recovery by flushing an underground formation, comprising the injection into the underground formation of an aqueous composition comprising microgels having at least one crosslinked polymer, characterized in that the polymer is crosslinked with at least one crosslinking agent capable of being degraded under the temperature conditions of the underground formation, and a content of crosslinking agent between 1 and 90 ppm per mole with respect to the total number of moles of monomer constituting the polymer.

Abstract: An individual visual immersion device for a moving person including means for placing the device on the person and for displaying immersive images in front of the person's eyes, a stereoscopic camera, means for, during an initialization phase of the device in an operating zone including static obstacles, the device being moved in the operating zone, recording stereoscopic images of the operating zone from several points of view using the camera, then merging the images into a model of the operating zone, and interpreting the model to create a three-dimensional map of obstacles identified in the operating zone, and means for, during a usage phase of the device in the operating zone, the device being worn by a user, detecting whether the user is approaching one of the static obstacles identified in the map and then triggering an alert process.

Abstract: A method for diverting an underground formation comprises injecting, into the underground formation, an aqueous solution containing at least one heat-sensitive copolymer of a) at least one water-soluble monomer having at least one unsaturated function capable of being polymerized to form a water-soluble backbone, and b) at least one macromonomer of formula (I)

Abstract: Individual visual immersion device for a moving person, comprising a means for placing the device on the person and a means for displaying immersive images in front of the eyes of the person, characterised in that it further comprises a stereoscopic image sensor (A) for generating two synchronised image streams of a same scene taken at two distinct angles, a means for calculating a piece of information on the disparity between the images of pairs of synchronised images of the two streams (B, F1, F2), a means for calculating current movement characteristics of the device (C) from the piece of disparity information, and means for composing a stream of immersive images (D, E, H) that arc coherent with the movement characteristics.

Abstract: “Method for adjusting a stereoscopic imaging device including for each sensor, tagging, in an image arising from the sensor, one and the same reference object, evaluating a quantity representative of a focus of the optical system associated with the sensor on the reference object, in order to adjust settings of each of the optical systems associated with a respective sensor of the stereoscopic imaging device.

Abstract: A stereoscopic image-capturing apparatus includes a first digital image sensor, a second digital image sensor synchronized with the first sensor, at least one optical zoom with variable focal distance and associated with the first sensor or the second sensor, a digital zoomer for performing a digital zoom on a digital image coming from the second sensor, a resizer for choosing a resizing value to align an image to be aligned and coming from the first sensor and an image to be aligned and coming from the second sensor, and a depth map producer for producing a depth map.

Abstract: A comb copolymer with a polymer backbone having grafted lateral macromonomer segments, the method of preparing, and the use thereof as a thickener in cosmetics. The polymer backbone is more than 55% and up to 90% molar ATBS, between 1% and 20% molar cationic monomer or monomer of formula (I): CH2?C(R1)—C(?O)—Y—(CH2)m-N(R2) (R3), where m is between 1 and 4, Y is O or NH, R1 is H or CH2, and R2 and R3 are each a methyl or ethyl radical, and optionally 0.005% to 1% molar of at least one cross-linking monomer with at least two C?C bonds. The lateral macromonomer segments are polymerized from 9% to 30% molar of N-alkyl acrylamide or N,N-dialkyl acrylamide of formula (II): CH2?C(R4)—C(?O)—N(R5) (R6), where R4 is H or CH2 and R5 and R6 are H or a C1 to C3 alkyl radical, with at least one of R5 or R6 not being H.

Abstract: Disclosed is a self-reversible reverse latex including: a) 25-80% by mass of a cross-linked anionic polyelectrolyte (P), resulting from the polymerization, for 100 mole percent: i)—of a molar proportion ?30% and ?95% of monomeric units from at least one monomer including a free, partially- or totally-salified strong acid function; and ii)—of a molar proportion >0% and ?5% of at least one monomer with diethylenic or polyethylenic cross-linking; b) 0.5-10% by mass of a terpolymer of stearyl methacrylate, pentacosaethoxylated behenyl methacrylate and N,N-dimethylacrylamide, resulting from the polymerization, for 100 mole percent: of 80-95 mole percent of stearyl methacrylate, of 2.5-10 mole percent of N,N-dimethylacrylamide, and of 2.5-10 mole percent of pentacosaethoxylated behenyl methacrylate, c) 5-40% by mass of at least one oil, and d) 0.1-40% by mass of water; method of preparing same and use thereof as a thickener.

Abstract: A cross-linked anionic polyelectrolyte resulting from the polymerization, for 100 mol %: (i) of a proportion no smaller than 30 mol % and smaller than 99.5 mol % monomer units from a monomer having a partially or totally salified strong acid function; (ii) of a proportion no smaller than 0.5 mol % and no greater than 5 mol % monomer units from at least one monomer having Formula (I): CH2?CH(CH3)—C(=0)—OR1 (I), wherein Ri is an alkyl radical including 6 to 18 carbon atoms; (iii) of a proportion greater than 0 mol % and no greater than 5 mol % monomer units from at least one diethylene or polyethylene cross-linking monomer; and (iv) optionally, of a proportion smaller than 69.5 mol % monomer units from a neutral monomer. Also, a method for preparing the polyelectrolyte and to the use thereof as a thickener in topical compositions.

Abstract: The present invention relates to a method for diverting an underground formation.

Abstract: A comb copolymer having a backbone of 2-acrylamido-2-methylpropanesulfonic acid, with grafted lateral side segments of poly(N-alkylacrylamide) or poly(N,N-dialkylacrylamide), is provided. A process for the preparation of the comb copolymer includes reacting a compound of formula (II) with a compound of formula (III) in a (tert-butanol)-water mixture, to obtain a poly(N-alkylacrylamide) or poly(N,N-dialkylacrylamide) telomere of formula (I); reacting in tert-butanol the telomer of formula (I) with an acid chloride of formula (IV) to obtain a solution of the macromonomer of formula (V); and copolymerizing in tert-butanol the macromonomer of formula (V) with an ammonium salt of 2-acrylamido-2-methylpropanesulfonic acid.

Abstract: A straight, branched or cross-linked polymer, including, per 100 mol %: a) a mole fraction from 75% to 99.95% of monomer units from an N,N-dialkyl acrylamide; b) a mole fraction from 0.05% to 1% of monomer units from a monomer of formula (I): CH2=C(Ri)-C(?O)—O—[(CH2-CH(R2)-O]n-R3 (I); c) optionally a mole fraction higher than 0% to 24% either of monomer units from a monomer including a free strong acid function, partially or totally salified, or of monomer units from a monomer of formula (II): CH2=C(R4)-C(?O)—Y—(CH2)m-N(R5)(R6) (II); d) optionally a mole fraction higher than 0% to 1% of a diethylene or polyethylene cross-linking monomer. Also, a method for treating a surface made of a hydrophobic material, using the polymer, and an aqueous, hydro-organic or organic solution including the polymer for modifying interactions between the species contained the solution and the hydrophobic surface.

Abstract: This invention involves a process for reducing friction in ethanol during its transport through pipelines. This process involves combining ethanol with a polymer-based composition, characterized in that the polymer is obtained from at least 50 mol % of at least one monomer selected from the group comprising N-substituted acrylamides, N-substituted methacrylamides, N,N-substituted acrylamides, N,N-substituted methacrylamides, substituted acrylates and substituted methacrylates.

Abstract: Method for preparing a vaccine, comprising—a step a) of preparing an adjuvant composition by dispersing, in a physiologically acceptable aqueous solution, at least one inverse latex or a powder of polymer resulting from the atomization of said inverse latex; —a step b) of mixing the composition obtained in step a) into an antigenic medium, intended to form a vaccine composition.