baber/WOPTO huggingface dataset:
Patent BR-PI0213339-B1 (BR)
Inventor: GREY ROGER A
IPC: C07D301/06
Filed: 2002-09-20
Abstract: The liquid-phase epoxidation reaction of an olefin with hydrogen and oxygen in the presence of a catalyst mixture containing a titanium zeolite and a supported catalyst surprisingly produces less ring-opened products such as glycols when performed in the presence of a buffer. This is particularly surprising because a typical palladium on titanium zeolite catalyst is little effected by the presence of a buffer. Surprisingly, the use of a buffer also typically improves the activity of the process.
Patent BR-9808692-B1 (BR)
Inventor: FRANKEFORT MAURICE
IPC: B27N7/00
Filed: 1998-04-27
Abstract: The invention relates to a method and device with which it is possible to arrange complicated shapes with considerable differences in height in wood fibre board, and in particular but not exclusively so-called MDF (Medium Density Fibreboard). The deformation of the wood fibre board which can be achieved with the invention is known in the art as extrusion, wherein a considerable plastic deformation takes place accompanied by flow and stretch of the material. <IMAGE>
Patent BR-9810023-B1 (BR)
Inventor: DAHANAYAKE MANILAL S
IPC: C09K23/02
Filed: 1998-06-09
Abstract: Viscoelastic surfactant based aqueous fluid systems useful as thickening agents in various applications, e.g. to suspend particles produced during the excavation of geologic formations. The surfactants are zwitterionic/amphoteric surfactants such as dihydroxyl alkyl glycinate, alkyl ampho acetate or propionate, alkyl betaine, alkyl amidopropyl betaine and alkylimino mono- or di-propionates derived from certain waxes, fats and oils. The thickening agent is used in conjunction with an inorganic water-soluble salt or organic additive such as phthalic acid, salicylic acid or their salts.
Patent BR-9912628-B1 (BR)
Inventor: EBENEZER WARREN JAMES
IPC: C09B62/09
Filed: 1999-07-26
Abstract: A reactive disazo dye of the formula (I) D1-Y-D2 wherein each of D1 and D2 is a chromophore of the formula (II)in which X is fluorine, chlorine or optionally substituted pyridinium, an SO3H is present in the 5-or 6-position of the naphthalene nucleus, n is 0 or 1, and Y is a bridging group or a sulphonic acid salt of the dye of formula (I). The dyes may be used for dyeing, printing or ink-jet printing, for example, of textile materials and paper and are particularly valuable for coloring cellulosic textile materials.
Patent BR-9917679-B1 (BR)
Inventor: SANDERS JOHN LARRY
IPC: C05C3/00
Filed: 1999-08-31
Abstract: Compositions and methods for lowering the pH of soil are provided wherein the compositions comprise ammonium sulfate, elemental sulfur, and a micronutrient selected from the group consisting of zinc, iron, manganese, copper, boron, cobalt, vanadium, selenium, silicon, nickel, and mixtures thereof. In the preferred embodiment, the compositions are in granulated form and are applied to the soil so as to create lower pH microenvironments within the soil without decreasing the pH of the overall bulk soil surrounding the microenvironments. In the microenvironments, the micronutrients are readily available to the roots of plants and are taken up by the plants with increased efficiency, thus reducing the quantity of micronutrients required to be applied to the soil.
Patent CH-702048-B1 (CH)
Title: Multi-coaxial connector and method of mounting such a multiple coaxial cable connector.
Inventor: BUFF ROMAN
IPC: H01R13/646
Filed: 2008-03-14
Abstract: A multiple coaxial cable plug connection (50), particularly for the detachable connection of a plurality of coaxial cables to a circuit board for operating frequencies of several GHz, comprises a first connector (10) and a second connector (20), wherein said connectors (10, 20) can be inserted in each other along a plug axis, wherein the first connector (10) has a plurality of first coaxial contact arrangements (26) disposed next to each other transversely to the plug axis, and the second connector (20) is equipped with second coaxial contact arrangements (27) that match the first coaxial contact arrangements (26), and wherein the first coaxial contact arrangements (26) each are attached to the end of an associated coaxial cable. High precision of the connection, and at the same time a reduced insertion force, are achieved in such a multiple coaxial cable plug connection in that the first coaxial contact arrangements (26) are floatingly supported in a first housing (11), while the second coaxial contact arrangements (27) are permanently installed in a second housing (21).
Patent CH-705085-B1 (CH)
Title: Spinnereivorbereitungsmaschine mit einer Vorrichtung zum Zu- und/oder Abfördern von Fasermaterial.
Inventor: BRITTA JACOBS
IPC: D01G23/02
Filed: 2012-05-25
Abstract: Eine Spinnereivorbereitungsmaschine mit einer Vorrichtung zum Zu- und/oder Abfördern von Fasermaterial umfasst mindestens ein muldenförmiges Leitelement (23) mit einer Leitfläche, die einer Förderwalze (22) der Spinnereivorbereitungsmaschine gegenüberliegend angeordnet ist und die mit der Förderwalze (22) zusammenzuarbeiten vermag, wobei das Fasermaterial gegen die Leitfläche und an dieser entlanggeführt wird. Die Vorrichtung zum Zu- und/oder Abfördern von Fasermaterial umfasst eine Einrichtung zur Erzeugung von Vibrationen, mit welcher das der Förderwalze (22) gegenüberliegend angeordnete mindestens eine muldenförmige Leitelement (23) in Vibrationen versetzbar ist.
Patent DE-2448947-B1 (DE)
Title: Intarsia and similar designs on flat knitting machines - with accurate and positive positioning of thread guides relative to needles
IPC: D04B15/56
Filed: 1974-10-15
Abstract: Intarsia and similarly patterned fabrics are produced on flat knitting machines having, distributed across the working width, a number of thread guides which can be accurately located in their end positions by a pivoting latch on the thread guide limiter which engages in a slotted braket on the thread guide box. The latch is pushed into and held in the locked position by a sliding bolt fitted to the thread guide limiter. The method is simple and accurately positions the guides relative to the needles, without modifying the thread guide carrier.
Patent DE-2532208-B1 (DE)
Title: Cable feedthrough which reduces hysteresis losses in magnetic tubes - has hysteresis losses reduced by electrically connecting together ends of tubes
Inventor: LINKE GUENTHER DIPL-ING
IPC: H02G3/22
Filed: 1975-07-16
Abstract: The cable feedthrough, for phased supply lines, has a magnetic tube section (4) for each insulated conductor. The sections of tube are electrically connected together (10, 10') at both ends to reduce the hysteresis losses in the magnetic material. The connections between the ends of the separate sections of tube are made of copper - ie copper rails/straps or copper cords - and they are connected to special connections in the flanges, at the ends of the sections of tube. The advantage of reducing hysteresis losses by connecting together the ends of the tubes lies in its allowing the use of magnetic materials rather than, as before, only non-magnetic types.
Patent DE-2612900-B1 (DE)
Title: Hand grip for suitcases or briefcases - is assembled from three interlocking pieces with one in centre and two grooved pieces at sides
Inventor: SCHNEIDER JOSEF
IPC: A45C13/26
Filed: 1976-03-26
Abstract: This grip handle for suitcases and briefcases etc. is made in three interlocking pieces. The grip consists of a centre piece (M) and two similar side pieces (S1,S2) which are fixed to the sides (3,4) of the centre piece (M). On each side (3,4) of the centre piece (M) on the upper and lower edges are beadings (5) which end with the end pieces (7) which hold the fitting bore (6) by which the grip is fitted to the case. The side pieces (S1,S2) are provided with grooves round the edges to correspond with the beading round the centre piece to form a tight fit. The side pieces have a number of round pegs (13) which fit into drillings (14) in corresponding pegs (15) in the centre piece (M). This forms a grip which can be made cheaply and is assembled without the need of screws or rivets.
Patent WO-03059034-B1 (WO)
Title: Pale de rotor pour eolienne et eolienne possedant une telle pale de rotor
Inventor: THISTED JAN
IPC: F03D80/00
Filed: 2002-12-30
Abstract: L'invention concerne des modes de réalisation d'une pale de rotor destinée à une éolienne, ainsi qu'une éolienne possédant un certain nombre de ces pales de rotor. Ces pales de rotor possèdent des lumières de marquage, lesquelles marquent les parties extrêmes de ces pales de rotor. Dans un mode de réalisation de cette invention, une pale de rotor possède au moins un orifice de sortie de lumière situé dans un emplacement éloigné de la pale de rotor, cet orifice de sortie de lumière étant constitué d'un certain nombre de diodes électroluminescentes (DEL) situées sur une surface extérieure de la pale de rotor. Dans un autre mode de réalisation de cette invention, une pale de rotor possède au moins un orifice de sortie de lumière situé dans un emplacement éloigné de la pale de rotor, cet orifice de sortie de lumière étant constitué d'un certain nombre d'extrémités extérieures de fibres optiques situées sur une surface extérieure de la pale de rotor.
Patent EE-03069-B1 (EE)
Inventor: ROLF BADER
IPC: C07C211/46
Filed: 1994-11-17
Abstract: A process for the preparation of 2-alkyl-6-methyl-N-(1'methoxy-2'-propyl)-aniline by catalytic reductive alkylation wherein at least one mole equivalent of methoxyacetone is reacted with one mole equivalent of 2-alkyl-6-methyl-aniline in a liquid medium without an additional solvent, in the presence of a platinised carbon catalyst and hydrogen and in the presence of an acid cocatalyst under a hydrogen pressure of between 2 x 10<5> and 1 x 10<6> Pa at a temperature between 20 and 80  DEG C, characterised in that the reaction mixture contains water from the beginning of the reaction and after the hydrogenation, base is added, the reaction mixture is filtered to separate the catalyst and the title compound recovered from the filtrate. The process is particularly useful for the preparation of N-substituted chloracetanilide herbicides.
Patent ES-2048067-B1 (ES)
Title: Transportador de tipo de vagoneta de monocarril.
Inventor: MAKIMURA KATSUYOSHI
IPC: B61B13/06
Filed: 1991-10-14
Granted: 1997-07-01
Abstract: TRANSPORTADOR DEL TIPO DE VAGONETA DE MONOCARRIL, QUE ESTA EQUIPADO CON UN CARRIL DE GUIA; UN CARRO MOTOR QUE COMPRENDE UNA UNIDAD DE RUEDA MOTRIZ QUE TIENE UNA RUEDA MOTRIZ QUE SE DESPLAZA GIRATORIAMENTE SOBRE EL CARRIL DE GUIA, Y UN CUERPO PRINCIPAL DEL CARRO QUE TIENE LA UNIDAD DE RUEDA SOSTENIDA SOBRE EL; UN CARRO LIBRE QUE COMPRENDE UNA UNIDAD DE RUEDA SEGUIDORA QUE TIENE UNA RUEDA SEGUIDORA MONTADA GIRATORIAMENTE SOBRE EL CARRIL DE GUIA Y OTRO CUERPO PRINCIPAL DEL CARRO QUE TIENE LA UNIDAD DE RUEDA SOSTENIDA SOBRE EL; Y UNA BASE DE APOYO DE UN ARTICULO A TRANSPORTAR, CUYOS EXTREMOS ANTERIOR Y POSTERIOR ESTAN SOSTENIDOS SOBRE LOS EXTREMOS SUPERIORES DE AMBOS CARROS, RESPECTIVAMENTE, DE MANERA QUE ESTOS EXTREMOS ANTERIOR Y POSTERIOR PUEDEN SER GIRADOS EN TORNO A UNOS ARBOLES DE APOYO VERTICALES Y QUE TIENE LOS CUERPOS PRINCIPALES DE LOS CARROS CONSTRUIDOS EN FORMA DE "U".
Patent ES-2060518-B1 (ES)
Title: Perfeccionamiento en las estructuras para la formacion de muros
Inventor: ORIOL ESTEVE JOSE RAMON
IPC: E02D17/20
Filed: 1992-08-12
Granted: 1997-11-16
Abstract: CONSISTE EN UNA SERIE DE ELEMENTOS PREFABRICADOS VERTICALES, COLOCADOS UNO AL LADO DE OTRO, SUSTENTADOS ANTES DEL HORMIGONADO DE LA ZAPATA MEDIANTE SUS PATAS Y LA ARMADURA PASIVA QUE SOBRESALE EN LA PARTE INFERIOR DE SUS NERVIOS CON DOS CONTRAFUERTES POR EL LADO DE LAS TIERRAS, SIENDO LA UBICACION DE ESTOS CONTRAFUERTES VARIABLE DESDE LA POSICION EXTREMA, UNO EN CADA EXTREMO DE LA PLACA, HASTA SU COLOCACION CONJUNTA DE TAL MANERA QUE SE CONFUNDAN EN UN UNICO CONTRAFUERTE. LA SECCION INFERIOR DE LOS CONTRAFUERTES Y LAS PATAS VAN UNIDOS POR UN ZUNCHO. APLICABLE A LA FORMACION DE MUROS Y ESTRUCTURAS DE CONTENCION.
Patent ES-2122831-B1 (ES)
Title: Inmovilizador para inmovilizar dos objetos relativamente movibles uno con relacion al otro.
Inventor: KOCH KLAUS
IPC: E05C17/30
Filed: 1994-11-15
Granted: 1999-06-01
Abstract: INMOVILIZADOR PARA INMOVILIZAR DOS OBJETOS RELATIVAMENTE MOVIBLES UNO CON RELACION AL OTRO EN DIFERENTES POSICIONES, CON UN CILINDRO HUECO UNIDO CON UNO DE LOS OBJETOS Y UN EMBOLO DESPLAZABLE EN EL CILINDRO HUECO, QUE ESTA UNIDO CON EL OTRO OBJETO A TRAVES DE UN VASTAGO DEL EMBOLO QUE DISCURRE HACIA AFUERA DESDE EL CILINDRO HUECO, DIVIDIENDO EL EMBOLO AL CILINDRO HUECO CERRADO HERMETICAMENTE HACIA EL EXTERIOR, EN DOS CAMARAS DE TRABAJO DE VOLUMEN VARIABLE QUE CONTIENEN UN FLUIDO DE TRABAJO, SIENDO POSIBLE EN EL EMBOLO, AL MENOS EN PARTE, LA UNION DE FLUJO DE LAS DOS CAMARAS DE TRABAJO A TRAVES DE UN DISPOSITIVO DE INTERCAMBIO, CONSISTIENDO EL DISPOSITIVO DE INTERCAMBIO EN AL MENOS DOS PARTES RELATIVAMENTE DESPLAZABLES UNA RESPECTO DE OTRA, LIBERANDOSE LA UNION DE FLUJO. DESPUES DEL DESPLAZAMIENTO DESDE UNA POSICION BASE ADOPTADA EN LA POSICION DE REPOSO. FIGURA 1.
Patent ES-2133023-B1 (ES)
Title: Sombrilla desmontable.
Inventor: GONZALEZ SERNA ANTONIO
IPC: A45B19/00
Filed: 1995-06-21
Granted: 2000-04-01
Abstract: Sombrilla desmontable, que comprende un mástil inclinado (1), una base inferior de apoyo (2), una armadura superior piramidal (3) relacionada con el mástil a través de uno de los vértices del marco base y de una barra auxiliar (15) que parte de la cúspide de la armadura, y una lámina o toldo de cubrición. Los vértices del marco base (13, 14) están constituidos por piezas angulares desmontables, siendo una, de estas piezas (13) rígida, mientras que las restantes (14) son articuladas. El vértice de la cúspide de la armadura está definido por una conexión desmontable. El mástil (1) dispone de un acople intermedio (4) en el que se fija de forma desmontable la pieza angular rígida (13) del marco base, mientras que a partir de su extremo superior dispone de un escotadura en la que se fija una cabeza que remata el extremo libre de la barra auxiliar (15).
Patent ES-2127674-B1 (ES)
Title: Vehiculo suspendido de piso bajo destinado al transporte colectivo urbano.
Inventor: SANCHEZ MILLON CARMEN
IPC: B62D31/02
Filed: 1995-12-21
Granted: 1999-12-16
Abstract: Vehículo suspendido de piso bajo destinado al transporte colectivo urbano constituido por una estructura en celosía ubicada en la parte superior lateral de la estructura del vehículo, con lo que todos los elementos integrantes del vehículo penden de ésta, logrando reducir la altura de la plataforma o piso bajo sin reducir en vano remanente entre el suelo y la carrocería del vehículo hasta valores inadmisibles, posibilitando de esta forma unos ángulos de entrada, salida e interior adecuados para los accesos a los talleres y garajes de la flota y mantenimiento, así como para la circulación del autobús por trazados que incluyan importantes cambios de pendiente, evitando, al mismo tiempo, la inclusión de elementos en el habitáculo interior del autobús que dificulten y/o impidan la utilización o el acceso a determinadas zonas del autobús por parte de personas mayores, personas discapacitadas o, en general, personas con movilidad reducida.
Patent ES-2152169-B1 (ES)
Title: Procedimiento de obtencion de un cuerpo con imagenes impresas y cuerpo con tal procedimiento.
Inventor: DE LA CRUZ MOLINA CRISTINA
IPC: B41M7/00
Filed: 1998-11-11
Granted: 2001-08-01
Abstract: Procedimiento de obtención de un cuerpo con imágenes impresas y cuerpo obtenido con tal procedimiento. Sobre una lámina (1) de acetato o vinilo, transparente o traslúcido, se realiza la impresión de las imágenes por cualquier medio convencional como inyección de tinta, láser, sublimación, etc., fijándose a la cara impresa (2) de esta lámina (1) una lámina transparente de PVC, poliester, de propiedad transparente (3), con adhesivo transparente (4-5) por ambas caras, a la que se fija a su vez un soporte (6) que puede ser transparente u opaco, rígido o flexible, de manera que las imágenes quedan perfectamente protegidas en el seno del cuerpo estratificado, visibles a través del soporte (6) cuando éste es transparente, o visibles a través de la lámina de acetato (1) cuando es opaco. En el seno de este cuerpo estratificado son susceptibles de quedar implantados, en alojamientos (9) u orificios pasantes (10), diodos led (11) asociados a un circuito impreso y rígido o flexible (12) fijado medianteadhesivo cosido o cualquier otro medio apropiado a la lámina de acetato (1), diodos que suministran al cuerpo laminar un aspecto luminiscente.
Patent ES-2162562-B1 (ES)
Title: Mejoras introducidas en el objeto de la patente de invencion n- 9802546 de cercado provisional.
Inventor: BIZCOCHO RUIZ RAFAEL
IPC: E04H17/06
Filed: 1999-06-28
Granted: 2002-09-01
Abstract: Mejoras introducidas en el objeto de la patente de invención n° 9802546 de cercado provisional. Cercado provisional que incorpora, además de los pies verticales (1) unos pies secundarios (6) fijados sobre el cercado con la pletina convencional de sujeción rápida (6.1) y que abrazan los pies verticales (1) adyacentes, mientras los pies secundarios (6) se prolongan o recogen hasta asentarse mediante la pletina extensible (6.4), disponiéndose otras pletinas de sujeción rápida (6.1) a distintas alturas de las juntas del cercado.
Patent ES-2166294-B1 (ES)
Title: Cinturon salvavidas autohinchable
Inventor: REGUEIRA FONTANES JOSE MANUEL
IPC: A63B31/00
Filed: 1999-11-12
Granted: 2003-10-01
Abstract: Cinturón salvavidas autohinchable, consiste en un flotador con forma de tubo anular con dos extremos (2). Para su hinchado incorpora una válvula y a ésta una botella de CO{sub,2} (3), con un dispositivo de apertura por anilla (4). El flotador va embutido en una funda que para el ajuste a la cintura incorpora dos tiras de velcro una en cada extremo de forma que se puedan solapar. En una segunda forma de realización, el flotador tiene forma de tubo anular sin extremos y va embutido en una funda que tampoco tiene extremos. En una tercera forma de realización, los cinturones anteriormente descritos irían embutidos en la cintura de los bañadores.
Patent FR-2828980-B1 (FR)
Inventor: NUNS JACQUES
IPC: H05B6/02
Filed: 2001-08-23
Granted: 2004-01-09
Abstract: The induction heater for melting metal has a heat exchanger (100) with a heat exchange surface heated by induction currents produced by coaxial induction coils (4). The heat exchange surface is formed by multiple parallel tubes (3) on an axis (OO') of the coils and inside them. There are magnetic masses (23) centred on the axis (OO').
Patent FR-2846702-B1 (FR)
Title: Echelle reglable
Inventor: FOURNIER ANDRE
IPC: E06C1/38
Filed: 2002-11-04
Granted: 2006-01-20
Abstract: L'invention se rapporte à une échelle réglable comprenant deux montants (2) reliés par des traverses (3) ou échelons (3) et un contre-appui (4) articulé sur les montants (2).Elle est caractérisée en ce que le contre-appui (4) est de longueur variable.
Patent FR-2893173-B1 (FR)
Inventor: HERBIN ANNE
IPC: G08G1/16
Filed: 2005-11-10
Granted: 2008-01-18
Abstract: The method involves placing two cameras (201, 202) in two positions, respectively, where the cameras present intervals (L, H) along two axes, respectively. An evaluation of a distance, separating a motor vehicle (200) from a frontal element (203), is established by using the interval (L) for realizing stereoscopic calculation. Another evaluation of the distance is established by using the interval (H) for realizing another stereoscopic calculation. The distance is determined by combining the two evaluations.
Patent FR-2895894-B1 (FR)
Inventor: LECERF JOEL
IPC: A47J43/044
Filed: 2006-01-10
Granted: 2008-02-22
Abstract: The food processor has a base (1) containing a vertical shaft (10). The hub (20) of the cutter (2) is threaded over this and the drive shaft (4) of a drive in the lid is then fitted, so that corresponding sections (200, 201; 400, 401) on the cutter hub and drive shaft lock together.
Patent FR-2904257-B1 (FR)
Inventor: VIOLLEAU ERIC
IPC: B29C65/08
Filed: 2006-07-25
Granted: 2010-04-02
Abstract: The present invention relates to a device for ultrasound welding of at least two overlapping sheets, comprising: at least one sonotrode for emitting ultrasound, at least one reaction part disposed at least partially facing the sonotrode, at least one intermediate wall other than a roller, movable relative to the at least one sonotrode and the reaction part, said intermediate wall at least partially defining a gap in which the sheets to be welded are inserted so as to execute at least one seal weld extending parallel in the direction of movement of the intermediate wall at the gap. At least one of the intermediate wall and the sonotrode has a transverse section comprising at least one relief projecting toward the gap.
Patent FR-2912155-B1 (FR)
Inventor: BURNET RENE
IPC: D03D49/00
Filed: 2007-02-05
Granted: 2009-05-29
Abstract: The reed (101) has a row of splits (105) rigidly assembled between them and with a filament yarn (103) that is monoblock, where the filament yarn has a U shaped transversal section. An end (151) of each split is received in the filament yarn. The filament yarn has internal grooves (139) arranged on U shaped arms (131A, 131B) perpendicular with respect to a longitudinal axis (X103) of the filament yarn, where each groove has a V shaped transversal section. The end is laterally inserted in the grooves, where the reed is made of an adhesive which connects the end with the filament yarn. An independent claim is also included for a method for manufacturing a loom reed.
Patent FR-2929919-B1 (FR)
Inventor: CHARLIER DOMINIQUE
IPC: B62D65/02
Filed: 2008-04-14
Granted: 2010-04-23
Abstract: The method involves rotating a structure i.e. body (2), of a vehicle around an instantaneous rotational axle (27) that is perpendicular to a longitudinal axis (23) of the body, where the rotational axle is located in the vicinity of an end (5) of the body. A maneuvering unit is positioned at another end (18) of the body to control the rotation of the body, where the maneuvering unit is constituted by a sling (21) that is terminated by a hook (22) and driven by a hoist (19). An independent claim is also included for a structure inverting tool comprising stops.
Patent FR-2936005-B1 (FR)
Inventor: LECOT FRANCIS
IPC: E05D15/06
Filed: 2008-09-16
Granted: 2011-06-03
Abstract: The system has a rail (42) comprising a wall (46) provided with oblong openings (48), and drag lines (50) formed on a front surface of the wall. The drag lines are co-operated with lugs arranged on plates that comprises an opening for receiving a fixation screw. Fixation units comprise the oblong openings for vertically adjusting a position of the rail against a vertical wall. The openings are fixed to the rail such that a longitudinal axis of the rail is slantingly extended along a partial level plane parallel to ground.
Patent FR-2933413-B1 (FR)
Inventor: KENSICHER YVES
IPC: C08F220/56
Filed: 2008-10-03
Granted: 2011-12-02
Abstract: The invention consists in the use, as a thickening agent of an aqueous formulation which is, notably, salt-rich, of a water-soluble or alkali-soluble copolymer consisting of (by weight): a) 30% to 45% of (meth)acrylic acid, b) 50% to 60% of acrylamide and/or of N-methylol and/or of an acrylic ester, c) 2% to 10% of a hydrophobic monomer of formula R1—(R2O)m—R3, in which: R1 designates a polymerisable unsaturated group, R2O designates an alkylene oxide group having 1 to 6 carbon atoms, m is an integer of between 20 and 50, R3 designates a linear alkyl chain comprising at least 16 and at most 26 carbon atoms, d) 0.1% to 4% of at least one cross-linking agent, which is preferentially ethyleneglycoldimethacrylate (EDMA).