Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Rhodia Polyamide Intermediates

Commissariat a L'energie Atomique

Nexans

Thermocompact

Rhodia Polyamides Intermediates

Centre National De La Recherche Scientifique

Rhodia Operations

Rhodia Chimie

Université De Nantes

Centre National De La Recherche Scientifique-cnrs

UniversitÉ Savoie Mont Blanc

Jean-Pierre Simonato

Alexandre Carella

Pascal Metivier

Eric Fache

Laurent Dussopt

Caroline Celle

Didier Bonnet

Tania Ireland

Daniel Amoros

Mathieu Debourdeau

Frédéric Augier

Fabrice Coustier

Paul Lefillastre

Maria Ignez Broglio

Nicolas Rousselet

Lucie Ordronneau

Florence Masse

Sakina Yahiaoui

Sonia Desousanobre

Thierry Malvache

Bruno Laguitton

Amal Chabli

Nicolas Massonnet

Céline Mayousse

Tristan Lescouet

Laurent Caillier

Romain Petroff Saint-Arroma

Sébastien Righini

Benjamin Commault

Alissa Lescouet

Clément Suspene

Pierre-Balthazar Lechene

Sylvain Sim

Guillaume Droval

Abdou Djouadi

An electric cable has at least one elongated electrical conductor (), at least one electrically insulating layer () surrounding the elongated electrical conductor (), and at least one metal layer () surrounding electrically insulating layer (). The metal layer () has metal nanowires.

Electric cable comprising a metal layer

Isolating metal nanowires from a reaction mixture also containing ancillary inorganic particles distinct from the nanowires, includes: providing a mixture of metal nanowires with large particles having at least two dimensions 250 nm or more, and small particles of which the largest dimension is less than 200 nm, in the form of a dispersion in a solvent medium having a viscosity at 25&#xb0; C. 10 mPa&#xb7;s or more; leaving the mixture to settle out under conditions conducive to the formation of a supernatent phase including the small particles and of a precipitate comprising the metal nanowires and the large particles; isolating the precipitate, and dispersing the isolated precipitate in a solvent medium having a viscosity at 25&#xb0; C. less than 10 mPa&#xb7;s; leaving the suspension to settle out under conditions conducive to the precipitation of said large particles; and recovering the nanowires in the form of a dispersion in the supernatent phase.

Process for purifying metal nanowires

The present invention relates to a conductive polymer material of poly(thio- or seleno-)phene type containing at least two distinct species of counteranion, including a first species which is an anionic form of sulphuric acid, and a second species of counteranion selected from triflate, triflimidate, tosylate, mesylate, perchlorate and hexafluorophosphate. The invention also relates to a process for preparing such a material and the use thereof as conductive film. The invention also targets a substrate coated at least partly by a film of a material as defined above, a device comprising a material as defined above as conductive material, and also the use thereof in the organic electronics, organic thermoelectricity, organic photovoltaic and organic photodetector fields.

Conductive polymer of poly(thio- or seleno-)phene type

An abrasive sawing or polishing substrate includes a substrate, a binder Ccovering at least a portion of the substrate, and abrasive particles having an at least partial coating, C. The abrasive sawing or polishing substrate also includes a coating Ccoating binder Cand the abrasive particles coated with Cand at least one light-emitting compound. The abrasive particles coated with Care in contact with binder Cand with coating C

Luminescent substrate containing abrasive particles, and method for the production thereof

The invention relates to a display screen and its manufacturing process. The display screen of the invention comprises: a substrate made of a plastic; at least one transparent heating element; and at least one thermochromic compound, and is characterized in that the at least one transparent heating element comprises at least one optionally functionalized metal nanowire. The invention in particular has applications in the electronics industry.

Display screen and its manufacturing process

The invention relates to an electronic device comprising at least two organic transistors having different threshold voltages. The device comprises at least two transistors, each including a self-assembled layer of molecules having dipole moments that differ from one another by an absolute value of between 0.2 and 10 debye. The invention is particularly suitable for use in the field of electronic circuit production.

Use of self-assembled layers for checking the threshold voltage of organic transistors

The invention relates to a process for improving the electrical and optical performance of a transparent electrically conductive material having silver nanowires. The invention also relates to a process for manufacturing a film made of a transparent electrically conductive material, such as a transparent electrode, a transparent heating film, or a film for electromagnetic shielding. The process of the invention includes the following steps: a) a step of bringing silver nanowires into contact with an acid solution, this solution having a pH lower than 7, preferably lower than 3; and b) a step of eliminating the acid. The field of application of the invention is in particular the field of optoelectronics.

Process for improving the electrical and optical performance of a transparent electrically conductive material based on silver nanowires

The invention relates to an apparatus and to a process for the detection and/or quantification of cesium ions Csin solution in a liquid medium. The apparatus of the invention comprises: a) an electrical device comprising two electrodes and a substrate comprising at least one portion made of a semiconductor material, the electrodes being in electrical contact with said semiconductor material; and b) a device for measuring the variation of the conduction current between the two electrodes, and at least one ligand comprising at least one calix[n]arene group bonded by grafting to the semiconductor material of the substrate of the electrical device or to one of the electrodes of the electrical device. The invention finds an application in the field of the detection of cesium ions in particular.

Electrical detection and quantification of cesium derivatives

A device for detecting and/or quantifying organophosphorus compounds, including an electrical device including a source electrode and a drain electrode separated by a semiconductive material, characterized in that at least one receptor molecule, including a group R and a primary alcohol in spatial proximity to a tertiary amine, with which the primary alcohol is capable of reacting in the presence of an organophosphorus compound, is grafted, by the group R, onto one of the electrodes or onto the semiconductive material, and a device for detecting the variation in positive charges between the two electrodes.

Electrical detection and/or quantification of organophosphorus compounds

The invention relates to a method for functionalizing a conductive or semiconductor material (M) by covalent grafting of receptor molecules (R) to its surface, said method comprising the following steps: (i) applying, across the terminals of a source electrode and a drain electrode located on either side of the material (M), sufficient potential difference to thermally activate the material (M) with respect to the grafting reaction of the molecules (R); and (ii) placing the material (M) thus activated in contact with a liquid or gaseous medium containing receptor molecules (R), thereby obtaining a material (M) functionalized by covalently grafted receptor molecules (R).

Selective functionalization by joule effect thermal activation

The invention relates to an apparatus and to a method for detecting and/or quantifying mercuric ions, Hg. The apparatus of the invention is of the type comprising an electrical device comprising two electrodes and a substrate comprising at least one surface made of an organic or inorganic semiconductor material, the electrodes being in electrical contact with said organic or inorganic semiconductor material, and a device for measuring the variation in the conduction current between the two electrodes, and wherein at least one compound which complexes mercuric ions Hg, selected from a dithia-dioxa-monoaza crown ether compound, an N,N-di(hydroxyethyl)amine, an N,N-di(carboxyethyl)amine, and mixtures of two at least of these compounds, is bonded to said semiconductor material or to an electrode of said electrical device. The invention finds application in the field of the detection of mercuric ions, in particular.

Electrical detection and quantification of mercuric derivatives

The present invention relates to a process for producing carboxylic acids. It relates more particularly to a process for producing carboxylic acids by oxidation of a hydrocarbon with oxygen or a gas containing oxygen, and even more particularly to the oxidation of cyclohexane to adipic acid. The invention relates to a process for producing carboxylic acids by oxidation with oxygen or a gas containing oxygen of a cycloaliphatic hydrocarbon in the presence of an oxidation catalyst and of a monocarboxylic oxidation solvent that is lipophilic in nature, comprising a step of extraction of the dicarboxylic acids formed in the oxidation step, consisting in carrying out, in liquid phase, an extraction of the diacids using water.

Method for making carboxylic acids

The present invention relates to a process for the oxidation of hydrocarbons, in particular of branched or unbranched saturated aliphatic hydrocarbons, of cycloaliphatic or alkylaromatic hydrocarbons or of alcohols and/or ketones, to acid or polyacid compounds. It relates more particularly to the oxidation, by an oxidizing agent comprising molecular oxygen, of cyclohexane and/or of cyclohexanol and/or cyclohexanone to adipic acid, in the presence of an aromatic organic acid and a manganese-based catalyst. The yield and selectivity for adipic acid are of a high level with respect to those obtained with other solvents and catalysts.

Method of oxidising hydrocarbons to acids

The present invention relates to a process for producing carboxylic acids. It relates more particularly to a process for producing carboxylic acids by oxidation of a hydrocarbon with oxygen or a gas containing oxygen, and even more particularly to the oxidation of cyclohexane to adipic acid. It relates to a process comprising a step consisting of hydrolysis of the esters formed during the oxidation step.

Process for producing carboxylic acids

The present invention relates to a process for the preparation of &#x3b2;- or &#x3b3;-unsaturated or saturated carboxylic acids. It relates more particularly to the hydroxycarbonylation of an organic compound comprising a conjugated unsaturation, such as butadiene, by the action of carbon monoxide and water in the presence of a palladium-based catalyst. The carboxylic acids thus obtained are preferably pentenoic acids. According to the invention, the reaction medium after the end of the hydroxycarbonylation stage is treated with hydrogen to reduce the palladium present in the 2+ oxidation state to palladium in the zero oxidation state and the precipitated palladium is recovered.

Method for preparing carboxylic acids by palladium carbonylation

Growing community of inventors

Sassenage, France

Jean-Pierre Simonato