SURFACE COATING METHOD AND DEVICE FOR CARRYING OUT SAID METHOD

A surface coating method includes the steps of preparing a solution containing a solvent and a material or its precursor, intended to cover a surface to be coated, which is non-volatile, film-forming and soluble or can be in suspension or dispersed in a solvent; and generating an aerosol of the solution. The method further includes generating an aerosol flow from a first end of a tube towards a second end of the tube, wherein the second end pre-determined cross-section (Se) and provided with a spray nozzle having an outlet with a cross-section (S) smaller than the cross-section (Se) of the second end of the tube, such that the ratio R1=F/S is greater than 4 metres per second. The method also includes the steps of directing the outlet of the nozzle towards the surface to be coated and spraying the aerosol onto the surface to be coated.

Method of processing porous article and porous article

A method and a porous article are provided. In said method, a porous article which comprises a matrix material in a solid state and pores therein, is processed at least some of the pores being open to an outer surface of the article. A flowing treatment substance is applied to the outer surface of the article and into at least some of the pores. The flowing treatment substance is allowed to react with the outer surface of the article and surfaces of said at least some of the pores such that a hydrophobic coating layer is established on surfaces thereof. An excess of the flowing treatment substance is removed from the article, and the hydrophobic coating layer established on the outer surface of the article is converted into a hydrophilic coating layer.

METHOD FOR DEPOSITING A LAYER ON THE SURFACE OF A SUBSTRATE

A process for depositing a layer on at least part of the surface of a substrate by at least partially submerging the substrate in a solution comprising a solvent and at least one compound intended to form the layer, then drying the substrate, this drying being at least partially carried out in an atmosphere that is isolated from the solution. The submersion in the solution and the drying of the substrate are carried out in the same controlled-atmosphere enclosure. 1. A process for depositing a layer on at least part of the surface of a substrate by at least partially submerging the substrate in a solution comprising a solvent and at least one compound intended to form the layer , then drying the substrate , this drying being carried out at least partially in an atmosphere that is isolated from the solution , wherein the submersion in the solution and the drying of the substrate are carried out in the same controlled-atmosphere enclosure.2. The process as claimed in claim 1 , in which the solution is introduced into the controlled-atmosphere enclosure in order to allow the substrate to be submerged claim 1 , and is removed from the controlled-atmosphere enclosure during the drying of the substrate.3. The process as claimed in claim 2 , in which the solution is contained in a moveable tank so as to be introduced into the enclosure and removed from the latter claim 2 , especially by moving the tank in translation relative to the enclosure.4. The process as claimed in claim 1 , in which the atmosphere in the enclosure is controlled by arranging for a flow of gas to pass through the interior of said enclosure.5. The process as claimed in claim 4 , in which the through-flow of gas is heated claim 4 , especially before it enters the controlled-atmosphere enclosure.6. The process as claimed in claim 1 , in which treatments are carried out on the layer claim 1 , directly in the enclosure claim 1 , during and/or after drying claim 1 , especially a high-temperature treatment ...

METHOD FOR PREPARING POROUS NANSTRUCTURED CERAMIC BILAYERS, CERAMIC BILAYERS OBTAINED BY SAID METHOD AND USES OF SAME

A method is provided for preparing porous nanostructured ceramic bilayers resting on a substrate, to the bilayers obtained by the method, and to the various uses of same, in particular in micro and nanofluidics, optics, photocatalysis and for separating and detecting analytes or molecules of interest. The method includes: ) a first step of forming a supported polymer cavity having oriented cylindrical porosity; ) a second step of filling and covering the polymer cavity with a solution or a dispersion of at least one ceramic precursor, optionally functionalised, in an organic solvent; ) a third step of eliminating the polymer cavity used in step ) by thermal treatment. 1. A method for preparing a nanostructured porous ceramic bilayer supported on a substrate , said bilayer having a lower layer in contact with the substrate and formed of ceramic pillars , said lower layer having a completely interconnected porosity of greater than 50% by volume , and a continuous upper ceramic layer resting on the lower layer of ceramic pillars , said upper layer having a volume porosity lower than the volume porosity of the lower layer , said method comprising the steps of:A) a first step of forming, via a liquid route, a supported polymer template having an oriented cylindrical porosity, said first step comprising the following substeps:i) the formation of a polymer film by application, to the surface of a substrate, of a block copolymer selected from the group consisting of the copolymers formed from polystyrene and sacrificial blocks selected from the group consisting of polyoxyethylene, polylactide and polybutadiene blocks and wherein the volume fraction of the sacrificial blocks varies from 0.20 to 0.40, in solution in an organic solvent;ii) the orientation of the sacrificial blocks along an axis substantially perpendicular to the surface of the substrate, by exposure of said polymer film to a heat treatment or to organic solvent vapors;iii) the immobilization of said polymer ...

OPTICAL DEVICE FOR DETECTING VOLATILE COMPOUNDS AND ASSOCIATED METHOD FOR DETECTING AND QUANTIFYING VOLATILE COMPOUNDS

An optical device, for detecting volatile compounds, comprises a sensitive reflecting element. The sensitive reflecting element comprises a substrate layer and at least one sensitive layer configured to allow volatile compounds to adsorb and desorb. An electrically conductive layer is between the substrate layer and the sensitive layer and is configured to heat the sensitive layer by Joule heating. A light source is placed to illuminate the sensitive layer. A light detector is configured to measure the light intensity reflected by the sensitive reflecting element. A computing and processing unit is also included. Also disclosed is a method for detecting and quantifying volatile compounds implementing the optical detecting device. 1. An optical device for detecting volatile compounds comprising: a substrate,', 'at least one transparent and porous sensitive layer configured to allow volatile compounds contained in the atmosphere to be tested to adsorb and desorb, and', 'a non-scattering and transparent electrically conductive layer sandwiched between the substrate layer and the sensitive layer and placed directly in contact with the substrate layer and with the sensitive layer, the electrically conductive layer being configured to allow the sensitive layer to be heated by Joule heating in order to allow the volatile compounds adsorbed on the sensitive layer to desorb,', 'at least one monochromatic or quasi-monochromatic light source placed to illuminate the sensitive layer at an incident angle,', 'at least one light detector configured to measure the light intensity reflected by the sensitive reflecting element at a detection angle, and', 'a computing and processing unit configured to determine the volatile compounds present in the atmosphere to be tested depending on their desorption temperatures and their concentration via variation in the light intensity reflected by the sensitive reflecting element., 'a sensitive reflecting element, the reflected light intensity ...

SUBSTRATE FOR MOUNTING LIGHT RADIATION SOURCES AND CORRESPONDING METHOD

A substrate for mounting electrically-powered light radiation sources, e.g. LED sources, includes a base layer of electrically-insulating material, such as PET, and a contact layer of electrically conductive material, e.g. copper. The contact layer includes a mounting area for a light radiation source having opposed anode and cathode terminals, including two portions with a gap therebetween. Therefore, the light radiation source may be mounted bridge-like across gap, with anode and cathode terminals soldered to respective soldering surfaces provided in the one and the other of said two portions of the mounting area. The latter portions include respective solder flow blocking formations including fork-shaped apertures in contact layer leaving base layer uncovered. The fork-shaped apertures have a web portion and prongs extending from web portion towards said soldering surfaces. 1. A substrate for mounting electrically-powered light radiation sources , comprising:a base layer of electrically-insulating material, anda contact layer of electrically conductive material over said base layer, said contact layer including a mounting area for an electrically-powered light radiation source having opposed anode and cathode terminals, said mounting area including two portions with a gap therebetween for mounting said light radiation source bridge-like across said gap with said anode and cathode terminals soldered to respective soldering surfaces in the one and the other of said two portions of the mounting area,wherein said two portions include respective solder flow blocking formations including fork-shaped apertures in said contact layer leaving said base layer uncovered; said fork-shaped apertures with a web portion and prongs extending from said web portion towards said respective soldering surfaces.2. The substrate of claim 1 , wherein said fork-shaped apertures include rake-like apertures.3. The substrate of claim 1 , wherein said soldering surfaces have a width across ...

A method of thermal decoupling of printed circuits and a printed circuit for use therein

In order to counter heat propagation between adjacent sections of a ribbon-like printed circuit board, the sections being individually exposed to heat between opposed border lines, with printed circuit board including an electrically insulating substrate with electrically conductive pads for mounting components thereon, the adjacent sections are terminated at the opposed border lines with at least one electrically conductive borderline pad, which has a separation gap to the border line, and/or is coupled to an electrically conductive line extending on substrate between a first end at borderline pad and a second end away from borderline pad. The first end and the second end may be located at a first and at a second distances to border line, the second distance being longer than the first distance, and/or the electrically conductive line may have a narrower cross section than the first and the second ends.

Process for preparing an epitaxial alpha-quartz layer on a solid support, material obtained and uses thereof

The present invention relates to a process for preparing epitaxial α-quartz layers on a solid substrate, to the material obtained according to this process, and to the various uses thereof, especially in the electronics field.

Microtransfer molding process and patterned substrate obtainable therefrom

Microtransfer molding process and patterned substrate obtainable therefrom The present invention pertains to the field of nanoimprint lithography (NIL) processes and more specifically to a MicroTransfer Molding process used for providing a sol-gel patterned layer on a substrate without any residual layer. The process comprises the following successive steps: (a) impregnating a soft mold with a sol-gel layer coated on a first substrate, under conditions of a relative solvent pressure adjusted such that the layer swells by vapor absorption between 10 and 60% vol., so as to fill the mold under the action of capillary forces, (b) removing the first substrate, (c) if needed, equilibrating the gel within the mold cavities, under a relative solvent pressure between 0 and 95%, in order to allow it to swell, (d) applying the swollen gel onto a second substrate to be patterned, (e) thermally treating this assembly so as to rigidify the gel, (f) removing the mold, and (g) curing the gel into a ceramic, thus forming a patterned substrate.

OPTICAL DEVICE FOR DETECTING AND QUANTIFYING VOLATILE COMPOUNDS

The invention relates to an optical device for detecting and quantifying volatile compounds, comprising: 1. An optical device for detecting and quantifying volatile compounds , comprising: a substrate,', 'a sensitive layer comprising microporous hydrophobic sol-gel silica having a thickness of greater than 250 nm, notably of between 400 nm and 1200 nm, a mean pore size of less than 2 nm and a porosity of less than 25%, the sensitive layer being intended to be placed in the presence of an atmosphere to be tested, notably which may or may not be charged with ethanol, and more particularly the breath exhaled from an individual,, 'a sensitive reflective element, the reflection rate of which varies as a function of the ethanol content contained in an atmosphere to be tested, the sensitive reflective element comprisinga monochromatic or quasi-monochromatic light source arranged to illuminate the sensitive layer under an incident angle,a light detector for measuring the intensity reflected by the reflective element under an angle of detection,anda processing and calculation unit configured to deduce from the intensity reflected by the reflective element a parameter corresponding to a blood alcohol content.2. The detection device as claimed in claim 1 , wherein the sensitive layer does not comprise structuring agents claim 1 , notably CTAB claim 1 , DTAB or F127.3. The detection device as claimed in claim 1 , wherein the substrate has a refractive index greater than 2.5 claim 1 , notably greater than 3 for a wavelength of between 250 nm and 1500 nm.4. The detection device as claimed in claim 1 , wherein the substrate is made of a semiconductive material claim 1 , notably of silicon.5. The detection device as claimed in claim 1 , wherein the incident angle and the angle of detection are respectively between 30° and 75°.6. The detection device as claimed in claim 1 , wherein the wavelength of the light source is monochromatic and chosen with the angle of incidence so as to ...

NANOIMPRINT LITHOGRAPHY PROCESS AND PATTERNED SUBSTRATE OBTAINABLE THEREFROM

The present invention pertains to the field of nanoimprint lithography (NIL) processes and more specifically to a soft NIL process used for providing a sol-gel patterned layer on a substrate. Specifically, this process comprises a step of adjusting the solvent uptake of the sol-gel film to 10 to 50% vol., preferably between 15 and 40% vol., by varying the relative pressure of the solvent while a soft mould is applied onto the substrate coated with the sol-gel film. 1. A nanoimprint lithography (NIL) process , comprising the successive steps of:a) preparing a solution of metal or metalloid oxide precursor(s),b) applying said solution onto a substrate to form a film,c) equilibrating the film with the atmosphere under adjusted solvent vapor pressure,d) applying a soft mould onto said film to provide an assembly such that said film fills up the cavities of the mould, and maintaining said assembly under solvent vapor,e) thermally treating said assembly so as to rigidify the gel film thus obtained,f) removing the mould to obtain a substrate coated with a patterned gel, andg) curing said patterned gel so as to obtain a patterned metal or metalloid oxide material on said substrate, wherein the solvent uptake of the film is adjusted to 10 to 50% vol. by varying the vapor pressure in a volatile solvent at the vicinity of the gel during steps c) and d).2. The process of claim 1 , wherein the solvent is selected from the group consisting of water claim 1 , ethanol claim 1 , isopropanol claim 1 , acetone claim 1 , THF claim 1 , hexane claim 1 , toluene and their mixtures.3. The process according to claim 1 , wherein the metal or metalloid oxide precursors are selected from the group consisting of inorganic salts claim 1 , organics salts or alkoxides of at least one metal or metalloid or of a combination of at least one metal with at least one metalloid.4. The process according to claim 3 , wherein that the metal or metalloid oxides obtained from the metal or metalloid oxide ...

ACTIVE GLAZING SYSTEM

An active glazing system () includes a double glazing, with two transparent plates () that together delimit an intermediate volume () filled with gas. The system further includes a control device () that is capable of producing a transition in a volatile compound present in the intermediate volume, between a dry vapor state and a supersaturated vapor state of the volatile compound. Switching processes can therefore be controlled for the double glazing, between a transparent optical state and a diffusing optical state. Such a system can be used as building or vehicle glazing, an interior partition arrangement, a projection screen, a solar diffuser, a light source diffuser, a vision blurring device, etc. 1100. Active glazing system () comprising:{'b': 1', '1', '2, 'i': a', 'b, 'a double glazing, itself comprising two transparent plates (, ) that together delimit therebetween an intermediate volume () filled with gas; and'}{'b': '10', 'a control device (), capable of reversibly producing a transition in a volatile compound between a dry vapor state and a supersaturated vapor state,'}{'b': '2', 'so that when the dry vapor state is produced in the intermediate volume (), the volatile compound present in said intermediate volume is entirely in vapor form and the double glazing is transparent,'}{'b': 1', '1', '2, 'i': a', 'b, 'and so that an instruction to change from the dry vapor state to the supersaturated vapor state results in a condensation of said volatile compound into droplets distributed over at least one portion of a surface (Sa) of at least one of the two plates (, ), facing the intermediate volume (), the droplets producing a light diffusion that reduces the transparency of the double glazing,'}{'b': '0', 'wherein the surface portion of the plates on which the volatile compound condenses is such that an angle of contact () of the droplets of the volatile compound with the surface is greater than 70°.'}210. Active glazing system according to claim 1 , wherein ...

Nanoimprint lithography process and patterned substrate obtainable therefrom

The present invention pertains to the field of nanoimprint lithography (NIL) processes and more specifically to a soft NIL process used for providing a sol-gel patterned layer on a substrate. Specifically, this process comprises a step of adjusting the solvent uptake of the sol- gel film to 10 to 50% vol., preferably between 15 and 40% vol., by varying the relative pressure of the solvent while a soft mould is applied onto the substrate coated with the sol-gel film.

Multilayer coating for glazing, method of producing such a coating and glazing provided with said coating

L’invention concerne, d’une part, un revêtement multicouche à propriétés, notamment, antireflets et antibuée pour vitrages de véhicules automobiles, comprenant au moins deux couches minces, respectivement une couche interne et une couche externe, caractérisé en ce que ladite couche externe présente un fort indice de réfraction tandis que ladite couche interne présente un faible indice de réfraction et est composée d’agents hydrophobes destinés à réduire sa tension de surface de façon à éviter à la fois l’apparition de buée et son encrassement et, d’autre part, un procédé de réalisation dudit revêtement Figure pour l’abrégé : Figure 1 The invention relates, on the one hand, to a multilayer coating with properties, in particular, anti-reflective and anti-fog for motor vehicle windows, comprising at least two thin layers, respectively an inner layer and an outer layer, characterized in that said outer layer has a high refractive index while said inner layer has a low refractive index and is composed of hydrophobic agents intended to reduce its surface tension so as to avoid both the appearance of fogging and its fouling and, of on the other hand, a method of producing said coating Figure for the abstract: Figure 1

MICRO-FLUIDIC DEVICE FOR CONVEYING A PRODUCT BY DIFFUSION IN A POROUS SUBSTRATE

MULTIFUNCTIONAL COATING FOR AUTOMOTIVE WINDOWS AND METHOD OF MANUFACTURING THE SAME

Un substrat (1) revêtu d'une première couche (2) transparente, la première couche étant recouverte par une deuxième couche (3) transparente et poreuse ayant un deuxième indice (7) de réfraction inférieur à un indice (11) de réfraction de référence du substrat, la deuxième couche étant revêtue d'une troisième couche (4) transparente comprenant des pores dont le diamètre est compris entre 2 et 50 nanomètres. A substrate (1) coated with a first transparent layer (2), the first layer being covered by a second transparent porous layer (3) having a second index (7) of refraction less than a refractive index (11) of reference of the substrate, the second layer being coated with a third transparent layer (4) comprising pores whose diameter is between 2 and 50 nanometers.

HIERARCHISED POROSITY MATERIAL COMPRISING SILICON

POROUS OXYFLUORIDE NANOSTRUCTURE

MICRO-FLUIDIC DEVICE FOR CONVEYING A PRODUCT BY DIFFUSION IN A POROUS SUBSTRATE

L'invention a pour objet un dispositif micro-fluidique (1) pour convoyer du produit par diffusion dans un substrat poreux (2) d'une zone d'injection (ZI) de produit (F) à une zone d'arrivée (ZA) de produit reliées par une zone de canalisation de produit (ZE). Selon l'invention, le substrat poreux présente une surface libre (4) qui est partiellement recouverte d'un masque (5,6,7) imperméable au produit et qui s'étend de la zone d'injection (ZI) à la zone d'arrivée (ZA) pour définir dans le substrat la zone de canalisation de produit (ZE), de façon à permettre une évaporation du produit par une portion non recouverte (8,9) de la surface libre (4) The invention relates to a microfluidic device (1) for conveying product by diffusion in a porous substrate (2) from an injection zone (ZI) of product (F) to an arrival zone (ZA ) of product connected by a product pipeline area (ZE). According to the invention, the porous substrate has a free surface (4) which is partially covered by a mask (5,6,7) impermeable to the product and which extends from the injection zone (ZI) to the zone of arrival (ZA) for defining in the substrate the product pipeline zone (ZE), so as to allow evaporation of the product by an uncoated portion (8,9) of the free surface (4)

Material with a hierarchical porosity comprising silicon

A material with a hierarchical porosity is described, constituted by at least two spherical elementary particles, each of said spherical particles comprising zeolitic nanocrystals having a pore size in the range 0.2 to 2 nm and a matrix based on silicon oxide, which is mesostructured, having a pore size in the range 1.5 to 30 nm and having amorphous walls with a thickness in the range 1 to 20 nm, said spherical elementary particles having a maximum diameter of 10 μm. the matrix based on silicon oxide may contain aluminium. The preparation of said material is also described.

PROCESS FOR PRODUCING A THIN LAYER OF ORDERED SILICON NANORELIEFS

Optical device for detecting volatile compounds or adsorbable gas and associated method for detecting and quantifying volatile compounds

La présente invention a pour objet un dispositif optique de détection (1) de composés volatils ou gaz adsorbable comportant : - un élément réflecteur sensible (3) comportant : * une couche de substrat (31), * au moins une couche sensible (33) configurée pour permettre l’adsorption et la désorption des composés volatils, et * une couche conductrice d’électricité (35) entre la couche de substrat (31) et la couche sensible (33), configurée pour chauffer la couche sensible (33) par effet Joule, - une source de lumière (5) disposée pour éclairer la couche sensible (33), - un détecteur de lumière (7) configuré pour mesurer l’intensité lumineuse réfléchie par l’élément réflecteur sensible (3), et - une unité de traitement et de calcul (9). La présente invention a également pour objet un procédé de détection et de quantification de composés volatils ou gaz mettant en œuvre ce dispositif optique de détection. Figure d’abrégé : Figure 1 The subject of the present invention is an optical device for detecting (1) volatile compounds or adsorbable gases comprising: - a sensitive reflective element (3) comprising: * a layer of substrate (31), * at least one sensitive layer (33) configured to allow adsorption and desorption of volatile compounds, and * an electrically conductive layer (35) between the substrate layer (31) and the sensitive layer (33), configured to heat the sensitive layer (33) by Joule effect, - a light source (5) arranged to illuminate the sensitive layer (33), - a light detector (7) configured to measure the light intensity reflected by the sensitive reflective element (3), and - a processing and calculation unit (9). The present invention also relates to a method for detecting and quantifying volatile compounds or gases using this optical detection device. Abstract Figure: Figure 1

Material with hierarchical porosity containing silicon

INORGANIC MATERIAL HAVING METALLIC NANOPARTICLES TRAPPED IN A MESOSTRUCTURED MATRIX

OPTICAL DEVICE FOR DETECTING AND QUANTIFYING VOLATILE COMPOUNDS

L'invention concerne un dispositif optique de détection et de quantification de composés volatils, comportant : - un élément réflecteur (21) sensible dont le taux de réflexion varie en fonction du taux d'éthanol contenu dans une atmosphère à tester, l'élément réflecteur (21) sensible comportant: ○ un substrat (27), ○ une couche sensible (29) comprenant de la silice sol-gel à caractère hydrophobe microporeuse, - une source de lumière (23) disposée pour éclairer la couche sensible (29) sous un angle d'incident, - un détecteur de lumière (25) pour mesurer l'intensité réfléchie par l'élément réflecteur (21) sous un angle de détection, et - une unité (31) de traitement et de calcul configurée pour déduire de l'intensité réfléchie par l'élément réflecteur (11) un paramètre correspondant à un taux d'alcoolémie. The invention relates to an optical device for detecting and quantifying volatile compounds, comprising: - a sensitive reflective element (21) whose reflection ratio varies as a function of the level of ethanol contained in an atmosphere to be tested, the reflective element Sensor (21) comprising: ○ a substrate (27), ○ a sensitive layer (29) comprising microgorous hydrophobic sol-gel silica, - a light source (23) arranged to illuminate the sensitive layer (29) under an incident angle; - a light detector (25) for measuring the intensity reflected by the reflector element (21) at a detection angle; and - a processing and computing unit (31) configured to derive the intensity reflected by the reflector element (11) a parameter corresponding to a blood alcohol level.

Mesostructured aluminosilicate material

A mesostructured aluminosilicate material is described, constituted by at least two spherical elementary particles, each of said spherical particles being constituted by a matrix based on silicon oxide and aluminium oxide, having a pore size in the range 1.5 to 30 nm, a Si/Al molar ratio of at least 1, having amorphous walls with a thickness in the range 1 to 20 nm, said spherical elementary particles having a maximum diameter of 10 μm. A process for preparing said material and its application in the fields of refining and petrochemistry are also described.

MESOSTRUCTURE MATERIAL WITH HIGH ALUMINUM CONTENT

On décrit un matériau mésostructuré constitué d'au moins deux particules sphériques élémentaires, chacune desdites particules comprenant une matrice mésostructurée à base d'oxyde d'aluminium, ayant une taille de pores comprise entre 1,5 et 30 nm, une teneur en oxyde d'aluminium représentant plus de 46% poids par rapport à la masse de ladite matrice, laquelle présente des parois amorphes d'épaisseur comprise entre 1 et 30 nm, lesdites particules sphériques élémentaires ayant un diamètre maximal de 10 mum. Ladite matrice mésostructurée peut également contenir de l'oxyde de silicium. Chacune des particules sphériques du matériau mésostructuré peut également contenir des nanocristaux zéolithiques de manière à former un matériau à porosité mixte de nature à la fois mésostructurée et zéolithique. On décrit également la préparation dudit matériau. A mesostructured material consisting of at least two elementary spherical particles, each of said particles comprising a mesostructured matrix based on aluminum oxide, having a pore size of between 1.5 and 30 nm, an oxide content of aluminum representing more than 46% by weight relative to the mass of said matrix, which has amorphous walls of thickness between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 mum. Said mesostructured matrix may also contain silicon oxide. Each of the spherical particles of the mesostructured material may also contain zeolite nanocrystals so as to form a mixed porosity material of both mesostructured and zeolitic nature. The preparation of said material is also described.

Optical device for detecting volatile compounds or adsorbable gas and associated method for detecting and quantifying volatile compounds

La présente invention a pour objet un dispositif optique de détection (1) de composés volatils ou gaz adsorbable comportant : - un élément réflecteur sensible (3) comportant : * une couche de substrat (31), * au moins une couche sensible (33) configurée pour permettre l’adsorption et la désorption des composés volatils, et * une couche conductrice d’électricité (35) entre la couche de substrat (31) et la couche sensible (33), configurée pour chauffer la couche sensible (33) par effet Joule, - une source de lumière (5) disposée pour éclairer la couche sensible (33), - un détecteur de lumière (7) configuré pour mesurer l’intensité lumineuse réfléchie par l’élément réflecteur sensible (3), et - une unité de traitement et de calcul (9). La présente invention a également pour objet un procédé de détection et de quantification de composés volatils ou gaz mettant en œuvre ce dispositif optique de détection. Figure d’abrégé : Figure 1 The subject of the present invention is an optical device for detecting (1) volatile compounds or adsorbable gas comprising: - a sensitive reflective element (3) comprising: * a substrate layer (31), * at least one sensitive layer (33) configured to allow adsorption and desorption of volatile compounds, and * an electrically conductive layer (35) between the substrate layer (31) and the sensitive layer (33), configured to heat the sensitive layer (33) by Joule effect, - a light source (5) arranged to illuminate the sensitive layer (33), - a light detector (7) configured to measure the light intensity reflected by the sensitive reflective element (3), and - a processing and calculation unit (9). The present invention also relates to a method for detecting and quantifying volatile compounds or gases using this optical detection device. Abstract figure: Figure 1

Method of fabricating a coated substrate

The method of coating a substrate by sol-gel deposition comprises: - a step of depositing a layer of a first sol-gel composition on the substrate, the first sol-gel composition being intended to form a first film, the first sol-gel composition comprising at least one ruthenium dioxide (RuO 2 ) precursor and at least one inorganic matrix precursor; and - a step of firing the layer of first sol-gel composition up to a first temperature; and then - a step of depositing a layer of a second sol-gel composition on the layer of first sol-gel composition, the second sol-gel composition being intended to form an inorganic second film, ruthenium being substantially absent of the second sol-gel composition; and - a step of firing the layer of first sol-gel composition and the layer of second sol-gel composition up to a second temperature strictly higher than the first temperature, such as to obtain the first film comprising nanoparticles containing ruthenium dioxide (RuO 2 ) dispersed in an inorganic matrix, and the second film deposited on the first film, ruthenium being substantially absent of the second film.

Optical device for detecting and quantifying volatile compounds

The invention relates to an optical device for detecting and quantifying volatile compounds, comprising: - a sensitive reflective element (21) having a reflection rate that varies as a function of the ethanol content in an atmosphere to be tested, the sensitive reflective element (21) comprising: - a substrate (27), - a sensitive layer (29) comprising microporous water-repellent sol-gel silica, - a light source (23) arranged to cast light on the sensitive layer (29) under an incident angle, - a light detector (25) for measuring the intensity reflected by the reflective element (21) under a detection angle, and - a processing and calculation unit (31) configured to deduce from the intensity reflected by the reflective element (11) a parameter corresponding to a blood alcohol content.

DEVICE WITH AT LEAST ONE LIGHT-EMITTING COMPONENT AND METHOD FOR PRODUCING THE SAME

In verschiedenen Ausführungsbeispielen werden eine Vorrichtung mit mindestens einem lichtemittierenden Bauelement und ein Verfahren zum Herstellen derselben bereitgestellt. Das Verfahren weist ein Ausbilden einer Aufwachsschicht (104) auf einem Träger (102) auf, wobei die Aufwachsschicht (104) eine laterale Strukturierung aufweist und elektrisch leitend ist. Das Verfahren weist weiterhin ein galvanisches Abscheiden eines elektrisch leitenden Materials direkt auf der Aufwachsschicht (104) derart auf, dass eine Leiterstruktur (106) mit der lateralen Strukturierung auf der Aufwachsschicht (104) ausgebildet wird. Das Verfahren weist ferner ein Anordnen des mindestens einen lichtemittierenden Bauelements (108) auf oder über der Leiterstruktur (106) auf, wobei das mindestens eine leichtemittierende Bauelement (108) mit der Leiterstruktur (106) elektrisch leitend verbunden wird. In various exemplary embodiments, a device with at least one light-emitting component and a method for producing the same are provided. The method comprises forming a growth layer (104) on a carrier (102), the growth layer (104) having a lateral structure and being electrically conductive. The method also has an electroplating of an electrically conductive material directly on the growth layer (104) in such a way that a conductor structure (106) with the lateral structuring is formed on the growth layer (104). The method further comprises arranging the at least one light-emitting component (108) on or above the conductor structure (106), the at least one light-emitting component (108) being electrically conductively connected to the conductor structure (106).

Multilayer coating for glazing, method of producing such a coating and glazing provided with said coating

L’invention concerne, d’une part, un revêtement multicouche à propriétés, notamment, antireflets et antibuée pour vitrages de véhicules automobiles, comprenant au moins deux couches minces, respectivement une couche interne et une couche externe, caractérisé en ce que ladite couche externe présente un fort indice de réfraction tandis que ladite couche interne présente un faible indice de réfraction et est composée d’agents hydrophobes destinés à réduire sa tension de surface de façon à éviter à la fois l’apparition de buée et son encrassement et, d’autre part, un procédé de réalisation dudit revêtement Figure pour l’abrégé : Figure 1 The invention relates, on the one hand, to a multilayer coating with properties, in particular, anti-reflective and anti-fog for motor vehicle windows, comprising at least two thin layers, respectively an inner layer and an outer layer, characterized in that said outer layer has a high refractive index while said inner layer has a low refractive index and is composed of hydrophobic agents intended to reduce its surface tension so as to avoid both the appearance of fogging and its fouling and, of on the other hand, a method of producing said coating Figure for the abstract: Figure 1

MULTIFUNCTIONAL COATING FOR AUTOMOTIVE WINDOWS AND METHOD OF MANUFACTURING THE SAME

ORGANIC-INORGANIC HYBRID MATERIAL MESOSTRUCTURE

COMPOSITION AND METHOD FOR MANUFACTURING VITREOUS OBJECTS

La présente invention concerne le domaine des matériaux. En particulier, la présente invention concerne une nouvelle composition obtenue par le mélange : d'une matrice comprenant : - au moins une source de silice, choisie parmi la silice colloïdale ou l'un de ses précurseurs ; au moins une base ; de l'eau ; dans laquelle ; - le rapport molaire base sur source de silice est compris dans une gamme de 0,2 à 1 ; - le rapport molaire eau sur source de silice est compris dans une gamme de 5 à 20; et d'au moins un additif réactif choisi parmi : (1) une zéolithe ou l'un de ses dérivés, et (2) un alcoxyde de silicium mixte ou un alcoxyde d'un métal de transition; l'additif réactif étant compris dans une gamme de 0,1 à 50 % en masse par rapport à la masse totale de la composition. La présente invention concerne également un procédé de fabrication d'objet vitreux à basse température à partir de la composition de l'invention.

METHOD FOR DEPOSITING A LAYER ON THE SURFACE OF A SUBSTRATE

Oxyfluoride in the form of a film and preparation method

The invention relates to a porous nanostructured oxyfluoride film deposited on a substrate, a method for producing the same, and various applications. The oxyfluoride has a porous semi-crystalline structure and a refraction index of between 1.08 and 1.25, measured in the visible range for a relative humidity rate lower than 80 %. The chemical composition thereof corresponds to the formula (Mg<SUB>(1-x)</SUB> Ca<SUB>x</SUB>)<SUB>(1-y)</SUB> My F<SUB>(2+(n-2)y-2z-t)</SUB>O<SUB>z</SUB>(OH)<SUB>t</SUB>M'<SUB>w</SUB> wherein n is the valency of M, n being between 1 and 4, M represents at least one element selected from Al, Si, Ge, and Ga, M' represents at least one element selected from the group consisting of Co, Cr Ni, Fe, Cu, Sb, Ag, Pd, Cd, Au, Sn, Pb, Ce, Nd, Pr, Eu, Yb, Tb, Dy, Er and Gd, and 0 = w < 0.1; 0 = x = 1; 0 = y = 0.5; z < 1, z+t > 0 and t < 2.

PROCESS FOR PREPARING NANOSTRUCTURED POROUS CERAMIC BILCHES, CERAMIC BICYCLES OBTAINED BY THIS METHOD AND APPLICATIONS

La présente invention est relative à un procédé de préparation de bicouches céramiques poreuses nanostructurées supportées sur un substrat, aux bicouches obtenues par ce procédé, ainsi qu'à leurs diverses applications, notamment en micro-ou nanofluidiques, en optique, en photocatalyse ou pour la séparation ou la détection d'analytes ou de molécules d'intérêt. Le procédé comprend : - une première étape de formation d'une empreinte polymère supportée présentant une porosité cylindrique orientée, - une deuxième étape de remplissage et de recouvrement de l'empreinte polymère par une solution ou une dispersion d'au moins un précurseur de céramique, éventuellement fonctionnalisé, dans un solvant organique, - une troisième étape d'élimination de l'empreinte polymère utilisée à l'étape 2) par traitement thermique. The present invention relates to a process for the preparation of nanostructured porous ceramic bilayers supported on a substrate, to the bilayers obtained by this method, as well as to their various applications, in particular in micro- or nanofluidics, in optics, in photocatalysis or for separation or detection of analytes or molecules of interest. The method comprises: a first step of forming a supported polymer imprint having oriented cylindrical porosity; a second step of filling and covering the polymer imprint with a solution or dispersion of at least one ceramic precursor , optionally functionalized, in an organic solvent, - a third step of removing the polymer imprint used in step 2) by heat treatment.

Mesostructured aluminosilicate material

Mesostructured aluminosilicate material (I) comprises at least two elementary spherical particles (II) comprising a mesostructured matrix (III) with a base of silicon oxide and aluminum oxide (having a pore size of 1.5-30 nm, molar ratio (Si/Al) of at least equal to 1 and amorphous wall thickness of 1-20 nm), where (II) have a maximum diameter of 10 mu m. Independent claims are also included for: (1) the preparation of (I); (2) adsorbent comprising (I); and (3) catalyst comprising (I).

MATERIAL ALUMINOSILICATE MESOSTRUCTURE

Mesostructured aluminosilicate material, useful in refining and petrochemical industries, comprises two elementary spherical particles comprising a mesostructured matrix with a base of silicon oxide and aluminum oxide

Mesostructured aluminosilicate material (I) comprises at least two elementary spherical particles (II) comprising a mesostructured matrix (III) with a base of silicon oxide and aluminum oxide (having a pore size of 1.5-30 nm, molar ratio (Si/Al) of at least equal to 1 and amorphous wall thickness of 1-20 nm), where (II) have a maximum diameter of 10 mu m. Independent claims are also included for: (1) the preparation of (I); (2) adsorbent comprising (I); and (3) catalyst comprising (I).

Method for manufacturing a light-emitting device

A method for manufacturing a light-emitting device is provided. The method involves: producing a support (102) having at least one conductor track (104, 114, 124) on a surface of the support (102); producing a reflective coating (106) directly on the at least one conductor track (104, 114, 124) by means of a film transfer method such that the conductor track (104, 114, 124) is substantially covered by the reflective coating (106); and arranging a light-emitting component (108) on or above the reflective coating (106), wherein the light-emitting component (108) is electrically conductively connected to the at least one conductor track (104, 114, 124).

OPTICAL DEVICE FOR DETECTING AND QUANTIFYING VOLATILE COMPOUNDS

L'invention concerne un dispositif optique de détection et de quantification de composés volatils, comportant : - un élément réflecteur (21) sensible dont le taux de réflexion varie en fonction du taux d'éthanol contenu dans une atmosphère à tester, l'élément réflecteur (21) sensible comportant: ○ un substrat (27), ○ une couche sensible (29) comprenant de la silice sol-gel à caractère hydrophobe microporeuse, - une source de lumière (23) disposée pour éclairer la couche sensible (29) sous un angle d'incident, - un détecteur de lumière (25) pour mesurer l'intensité réfléchie par l'élément réflecteur (21) sous un angle de détection, et - une unité (31) de traitement et de calcul configurée pour déduire de l'intensité réfléchie par l'élément réflecteur (11) un paramètre correspondant à un taux d'alcoolémie. The invention relates to an optical device for detecting and quantifying volatile compounds, comprising: - a sensitive reflective element (21) whose reflection ratio varies as a function of the level of ethanol contained in an atmosphere to be tested, the reflective element Sensor (21) comprising: ○ a substrate (27), ○ a sensitive layer (29) comprising microgorous hydrophobic sol-gel silica, - a light source (23) arranged to illuminate the sensitive layer (29) under an incident angle; - a light detector (25) for measuring the intensity reflected by the reflector element (21) at a detection angle; and - a processing and computing unit (31) configured to derive the intensity reflected by the reflector element (11) a parameter corresponding to a blood alcohol level.

METHOD FOR PRODUCING A LIGHT-EMITTING DEVICE

Es wird ein Verfahren zum Herstellen einer lichtemittierenden Vorrichtung bereitgestellt. Das Verfahren weist auf: ein Ausbilden eines Trägers (102) mit mindestens einer Leiterbahn (104, 114, 124) auf einer Oberfläche des Trägers (102); ein Ausbilden einer reflektierenden Beschichtung (106) direkt auf der mindestens einen Leiterbahn (104, 114, 124) mittels eines Folientransfer-Verfahrens derart, dass die Leiterbahn (104, 114, 124) im Wesentlichen von der reflektierenden Beschichtung (106) bedeckt ist; und ein Anordnen eines lichtemittierenden Bauelementes (108) auf oder über der reflektierenden Beschichtung (106), wobei das lichtemittierende Bauelement (108) elektrisch leitend mit der mindestens einen Leiterbahn (104, 114, 124) verbunden wird. A method of manufacturing a light emitting device is provided. The method comprises: forming a carrier (102) with at least one conductor track (104, 114, 124) on a surface of the carrier (102); forming a reflective coating (106) directly on the at least one conductor track (104, 114, 124) by means of a film transfer method such that the conductor track (104, 114, 124) is essentially covered by the reflective coating (106); and arranging a light-emitting component (108) on or above the reflective coating (106), the light-emitting component (108) being electrically conductively connected to the at least one conductor track (104, 114, 124).

Method for preparing porous nanostructured ceramic bilayers, ceramic bilayers obtained by said method and uses of same

The present invention relates to a method for preparing porous nanostructured ceramic bilayers resting on a substrate, to the bilayers obtained by said method, and to the various uses of same, in particular in micro and nanofluidics, optics, photocatalysis and for separating and detecting analytes or molecules of interest. The method includes: l) a first step of forming a supported polymer cavity having oriented cylindrical porosity; 2) a second step of filling and covering the polymer cavity with a solution or a dispersion of at least one ceramic precursor, optionally functionalised, in an organic solvent; 3) a third step of eliminating the polymer cavity used in step 2) by thermal treatment.

Composition and method for manufacturing vitreous objects

The present invention concerns the field of materials. In particular, the present invention concerns a novel composition obtained by mixing: a matrix comprising: - at least one silica source, chosen from colloidal silica or one of the precursors of same; - at least one base; - water; in which; - the molar ratio of base to silica source is included within a range from 0.2 to 1; - the molar ratio of water to silica source is included within a range from 5 to 20; and at least one reactive additive chosen from: (1) a zeolite or one of the derivatives thereof, and (2) a mixed silicon alkoxide or a metal alkoxide; the reactive additive being included within a range from 0.1 to 50 % by weight relative to the total weight of the composition. The present invention also concerns a method for manufacturing vitreous objects at low temperature from the composition of the invention.

Mesostructured material with high aluminum content

On décrit un matériau mésostructuré constitué d'au moins deux particules sphériques élémentaires, chacune desdites particules comprenant une matrice mésostructurée à base d'oxyde d'aluminium, ayant une taille de pores comprise entre 1 ,5 et 30 nm, une teneur en oxyde d'aluminium représentant plus de 46% poids par rapport à la masse de ladite matrice, laquelle présente des parois amorphes d'épaisseur comprise entre 1 et 30 nm, lesdites particules sphériques élémentaires ayant un diamètre maximal de 10 µm. Ladite matrice mésostructurée peut également contenir de l'oxyde de silicium. Chacune des particules sphériques du matériau mésostructuré peut également contenir des nanocristaux zéolithiques de manière à former un matériau à porosité mixte de nature à la fois mésostructurée et zéolithique. On décrit également la préparation dudit matériau.

PROCESS FOR THE PREPARATION OF NANOSTRUCTURED POROUS CERAMIC BILCHES, CERAMIC BICYCLES OBTAINED BY THIS METHOD AND APPLICATIONS

Process for processing a porous product and a porous product

INORGANIC MATERIAL HAVING METALLIC NANOPARTICLES TRAPPED IN A MESOSTRUCTURED MATRIX

On décrit un matériau inorganique constitué d'au moins deux particules sphériques élémentaires, chacune desdites particules sphériques comprenant des nanoparticules métalliques de taille comprise entre 1 et 300 nm et une matrice mésostructurée à base d'oxyde d'au moins un élément X choisi dans le groupe constitué par l'aluminium, le titane, le tungstène, le zirconium, le gallium, le germanium, l'étain, l'antimoine, le plomb, le vanadium, le fer, le manganèse, l'hafnium, le niobium, le tantale, l'yttrium, le cérium, le gadolinium, l'europium et le néodyme, ladite matrice ayant une taille de pores comprise entre 1,5 et 30 nm et présentant des parois amorphes d'épaisseur comprise entre 1 et 30 nm, lesdites particules sphériques élémentaires ayant un diamètre maximal de 10 mum. Ledit matériau peut également contenir des nanocristaux zéolithiques piégés au sein de ladite matrice mésostructurée. An inorganic material consisting of at least two elementary spherical particles, each of said spherical particles comprising metal nanoparticles of size between 1 and 300 nm and an oxide-based mesostructured matrix of at least one element X selected from group consisting of aluminum, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium, said matrix having a pore size between 1.5 and 30 nm and having amorphous walls of thickness between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 mum. Said material may also contain zeolitic nanocrystals entrapped within said mesostructured matrix.

DEVICE FOR DETECTING AN ALCOHOLIC RATE

Optical device for detecting and quantifying volatile compounds

OPTICAL DEVICE FOR DETECTING AND QUANTIFYING VOLATILE COMPOUNDS 5 The invention relates to an optical device for detecting and quantifying volatile compounds, comprising: - a sensitive reflective element (21), the reflection rate of which varies as a function of the ethanol content content contained in an atmosphere to be 10 tested, the sensitive reflective element (21) comprising: o a substrate (27), o a sensitive layer (29) comprising microporous hydrophobic sol-gel silica, - a light source (23) arranged to illuminate the sensitive layer (29) under an 15 incident angle, - a light detector (25) for measuring the intensity reflected by the reflective element (21) under an angle of detection, and - a processing and calculation unit (31) configured to deduce from the 20 intensity reflected by the reflective element (11) a parameter corresponding to a blood alcohol content.

Verfahren zur thermischen Entkopplung von gedruckten Schaltungen und gedruckte Schaltung zur Verwendung darin

Um einer Wärmeausbreitung zwischen benachbarten Abschnitten (S, S, S)einer bandartigen Leiterplatte (10) entgegenzuwirken, wobei die Abschnitte einzeln zwischen gegenüberliegenden Grenzlinien (BL) mit Wärme beaufschlagt werden, wobei die Leiterplatte (10) ein elektrisch isolierendes Substrat (12) mit elektrisch leitenden Pads (14) zum Montieren von Bauteilen (L) darauf enthält, sind die benachbarten Abschnitte an den gegenüberliegenden Grenzlinien (BL) mit mindestens einem elektrisch leitenden Grenzlinien-Pad abgeschlossen, das:einen Trennspalt zur Grenzlinie (BL) aufweist und/odermit einer elektrisch leitenden Leitung (140a) gekoppelt ist, die sich zwischen einem ersten Ende an dem Grenzlinien-Pad (140) und einem zweiten Ende von dem Grenzlinien-Pad (140) weg auf dem Substrat (12) erstreckt.Das erste Ende und das zweite Ende können in einem ersten (D1) und einem zweiten (D2) Abstand zur Grenzlinie (BL) positioniert sein, wobei der zweite Abstand (D2) länger als der erste Abstand (D1) ist, und/oder die elektrisch leitende Leitung (140a) kann einen schmaleren Querschnitt als das erste und das zweite Ende aufweisen.

Dispositif de detection d'un taux alcoolemie

L'invention concerne un dispositif (3) de détection d'un taux alcoolémie, comportant : - une bande flexible (1) destinée à être mise en présence avec une atmosphère à tester (4), notamment chargée ou non d'éthanol, et plus particulièrement de l'haleine expirée d'une personne, la bande flexible (1) comprenant o un substrat flexible (5), et ○ une couche poreuse hydrophobe (7) disposée sur le substrat flexible (5) et présentant une surface de pores accessibles de la couche poreuse (7) disposée sur le substrat flexible (5) supérieure à 140cm2/cm2, ○ le substrat flexible (5) étant précontraint de sorte qu'en absence d'éthanol, la bande flexible (1) présente une courbure initiale et en présence d'éthanol, la bande flexible (1) présente une courbure plus faible, un détecteur (21) de variation de la courbure de la bande flexible (1), et - une unité (23) de traitement et de calcul configurée pour déduire de la variation mesurée de la courbure de la bande flexible (1) un paramètre correspondant à un taux d'alcoolémie.

Method of processing porous article

Method of processing a porous article. The method comprises treating the article with a hydrophobicity enhancing component that is arranged in a treatment mixture in fluent state, dispensing the treatment mixture on the surface of the article, arranging a wall that is at least substantially impermeable to the treatment mixture on the article surface comprising the treatment mixture in such a way that the treatment mixture is between the article and said wall, and allowing the hydrophobicity enhancing component to absorb into the article from the space between the wall and the article.

Procede de preparation d'une couche de quartz-alpha epitaxiee sur support solide, materiau obtenu et applications

La présente invention est relative à un procédé de préparation de couches de quartz-α épitaxiées sur substrat solide, au matériau obtenu selon ce procédé, et à ses diverses applications, notamment dans le domaine de l'électronique.

Dispositif optique de détection de composés volatils et procédé de détection et de quantification de composés volatils associé

Procede d'enduction de surface et dispositif de mise en œuvre.

L'invention propose un procédé et un dispositif d'enduction de surface, permettant une enduction simple, rapide et homogène. Le procédé comprend les étapes suivantes : A) fournir une surface (100) à enduire ; B) préparer une solution contenant un solvant et un matériau ou son précurseur, destiné à recouvrir la surface à enduire, non volatil, filmogène, et soluble ou pouvant être en suspension ou pouvant être dispersé dans le solvant ; C) générer un aérosol de la solution obtenue à l'étape B) ; D) générer un débit (F) d'aérosol depuis une première extrémité d'une tubulure vers une deuxième extrémité de la tubulure de section déterminée (Se), munie d'une buse de projection comprenant une sortie de section (S) inférieure à la section (Se) de la deuxième extrémité de la tubulure, de telle sorte que le rapport R1 =F/S soit supérieur à 4 mètres par seconde, de préférence supérieure à 15 mètres par seconde, avantageusement compris entre 28 et 45 mètres par seconde ; E) diriger la sortie de la buse vers la surface à enduire. F) pulvériser l'aérosol sur la surface à enduire.

Procede de preparation d'une couche de quartz-alpha epitaxiee sur support solide, materiau obtenu et applications

La présente invention est relative à un procédé de préparation de couches de quartz-α épitaxiées sur substrat solide, au matériau obtenu selon ce procédé, et à ses diverses applications, notamment dans le domaine de l'électronique.

Microtransfer molding process and patterned substrate obtainable therefrom

Microtransfer molding process and patterned substrate obtainable therefrom The present invention pertains to the field of nanoimprint lithography (NIL) processes and more specifically to a MicroTransfer Molding process used for providing a sol-gel patterned layer on a substrate without any residual layer. The process comprises the following successive steps: (a) impregnating a soft mold with a sol-gel layer coated on a first substrate, under conditions of a relative solvent pressure adjusted such that the layer swells by vapor absorption between 10 and 60%vol., so as to fill the mold under the action of capillary forces, (b) removing the first substrate, (c) if needed, equilibrating the gel within the mold cavities, under a relative solvent pressure between 0 and 95%, in order to allow it to swell, (d) applying the swollen gel onto a second substrate to be patterned, (e) thermally treating this assembly so as to rigidify the gel, (f) removing the mold, and (g) curing the gel into a ceramic, thus forming a patterned substrate.

Procede d'enduction de surface et dispositif de mise en oeuvre

L'invention propose un procédé et un dispositif d'enduction de surface, permettant une enduction simple, rapide et homogène. Le procédé comprend les étapes suivantes : A) f ournir une surface (100) à enduire; B) préparer une solution contenant un solvant et un matériau ou son précurseur, destiné à recouvrir la surface à enduire, non volatil, filmogène, et soluble ou pouvant être en suspension ou pouvant être dispersé dans le solvant; C) générer un aérosol de la solution obtenue à l'étape 8); D) générer un débit (F) d'aérosol depuis une première extrémité d'une tubulure vers une deuxième extrémité de la tubulure de section déterminée (Se), munie d'une buse de projection comprenant une sortie de section (S) Inférieure à la section (Se) de la deuxième extrémité de la tubulure, de telle sorte que te rapport R1-F/S soit supérieur à 4 mètres par seconde, de préférence supérieure à 15 mètres par seconde, avantageusement compris entre 28 et 45 mètres par seconde; E) diriger la sortie de la buse vers la surface à enduire. F) pulvériser l'aérosol sur la surface à enduire.

Procede d'enduction de surface et dispositif de mise en oeuvre

L'invention propose un procédé et un dispositif d'enduction de surface, permettant une enduction simple, rapide et homogène. Le procédé comprend les étapes suivantes : A) f ournir une surface (100) à enduire; B) préparer une solution contenant un solvant et un matériau ou son précurseur, destiné à recouvrir la surface à enduire, non volatil, filmogène, et soluble ou pouvant être en suspension ou pouvant être dispersé dans le solvant; C) générer un aérosol de la solution obtenue à l'étape 8); D) générer un débit (F) d'aérosol depuis une première extrémité d'une tubulure vers une deuxième extrémité de la tubulure de section déterminée (Se), munie d'une buse de projection comprenant une sortie de section (S) Inférieure à la section (Se) de la deuxième extrémité de la tubulure, de telle sorte que te rapport R1-F/S soit supérieur à 4 mètres par seconde, de préférence supérieure à 15 mètres par seconde, avantageusement compris entre 28 et 45 mètres par seconde; E) diriger la sortie de la buse vers la surface à enduire. F) pulvériser l'aérosol sur la surface à enduire.

Method of processing porous article and porous article

A method and a porous article are provided.In said method, a porous article which comprises a matrix material in a solid state and pores therein,is processed at least some of the pores being open to an outer surface of the article. A flowing treatment substance is applied to the outer surface of the article and into at least some of the pores. The flowing treatment substance is allowed to react with the outer surface of the article and surfaces of said at least some of the pores such that a hydrophobic coating layer is established on surfaces thereof. An excess of the flowing treatment substance is removed from the article, and the hydrophobic coating layer established on the outer surface of the article is converted into a hydrophilic coating layer.

Apparecchiatura reometrica e suo procedimento di funzionamento.

Electrolytes hybrides réticulés à ions greffés

Un matériau comprend une composante organique comprenant au moins un fragment répétitif organique formant une matrice polymérique, une composante inorganique comprenant au moins deux fragments répétitifs inorganiques reliés à l’au moins un fragment répétitif organique par au moins deux liaisons covalentes respectives, formant des réticulations dans la matrice polymérique. Le matériau comprend en outre au moins un groupement ionique greffé par au moins une liaison covalente à la composante organique ou à la composante inorganique. Fig. 2

Procede de preparation d'une couche de quartz-alpha epitaxiee sur support solide, materiau obtenu et applications

La présente invention est relative à un procédé de préparation de couches de quartz-α épitaxiées sur substrat solide, au matériau obtenu selon ce procédé, et à ses diverses applications, notamment dans le domaine de l'électronique.

Procede de preparation d'une couche de quartz-alpha epitaxiee sur support solide, materiau obtenu et applications

La présente invention est relative à un procédé de préparation de couches de quartz-alpha épitaxiées sur substrat de silicium, au matériau obtenu selon ce procédé, et à ses diverses applications, notamment dans le domaine de l'électronique.

Electrolytes hybrides réticulés à ions greffés

Un matériau comprend une composante organique comprenant au moins un fragment répétitif organique formant une matrice polymérique, une composante inorganique comprenant au moins deux fragments répétitifs inorganiques reliés à l'au moins un fragment répétitif organique par au moins deux liaisons covalentes respectives, formant des réticulations dans la matrice polymérique. Le matériau comprend en outre au moins un groupement ionique greffé par au moins une liaison covalente à la composante organique ou à la composante inorganique.

Vitrage automobile autonettoyant sous excitation uv integree

Vitrage comprenant - une plaque transparente (1), cette plaque ayant deux faces principales opposées et une tranche (2); - un substrat (3) ayant un indice de réfraction inférieur à celui de la plaque (1), une première face de la plaque étant en contact avec le substrat suivant une première surface, la deuxième face de cette plaque étant revêtue, sur une deuxième surface, d'un revêtement photocatalytique (4), - une source de rayonnement (5) émettant un rayonnement apte à activer le revêtement photocatalytique (4), la source de rayonnement (5) étant agencée pour éclairer la plaque (1) par la tranche (2) de sorte qu'au moins une partie du rayonnement émis par la source de rayonnement (5) se propage, par réflexion totale interne dans la plaque (1), entre la première surface et la deuxième surface, activant de la sorte le revêtement photocatalytique (4).