baber/WOPTO huggingface dataset:
Patent BR-0105309-B1 (BR)
Inventor: DENNEHEY T MICHAEL
IPC: A61M5/165
Filed: 2001-03-23
Abstract: A filtering chamber for a set for the administration of fluids is provided. The chamber includes a housing providing a passageway for the fluid in the administration set. Within the chamber is a filter of screen which filters the fluid flowing through the housing. The filter or screen is attached to the housing during molding of the housing without the use of bonding agents, resulting in a chamber component which may be produced automatically and economically.
Patent BR-0113926-B1 (BR)
Inventor: DESROSIERS RONALD ROGER
IPC: B22D11/06
Filed: 2001-09-14
Abstract: A process of casting a molten metal to form a cast metal strip ingot while controlling heat flux from the cast metal. The process comprises continuously supplying molten metal to a casting cavity formed between a pair of moving continuous casting surfaces that withdraw heat from the molten metal to cause metal solidification, and continuously withdrawing a resulting cast strip ingot from the casting cavity. A gas (e.g. air) containing water vapour substantially without liquid water (i.e. a moist gas) is supplied to the inlet of the casting cavity in a region containing the meniscus formed where the molten metal first contacts the casting surfaces. The moist gas has the effect of adjusting the heat withdrawal by the casting surfaces to minimize surface defects in the cast strip ingot and to avoid undesired distortion of the casting cavity. Furthermore, in those cases where a parting agent is applied to the casting surfaces, the amount of parting agent applied to the casting surfaces may be reduced. The invention also relates to equipment provided for the delivery and dewpoint control of the moist gas.
Patent BR-0117161-B1 (BR)
Inventor: DAGHINI GUIDO LUIGI
IPC: B60C1/00
Filed: 2001-10-30
Abstract: A tire for a vehicle wheel includes a carcass structure, a tread band extending circumferentially around the carcass structure, a belt structure circumferentially located between the carcass structure and the tread band, and at least one pair of sidewalls applied to the carcass structure in axially opposite positions. The carcass structure includes at least one carcass ply. Ends of the carcass structure are fastened to a pair of annular reinforcing elements, wherein each annular reinforcing element is incorporated in a respective bead of the tire includes at least one cord. The at least one cord includes at least one preformed metallic thread element.
Patent BR-0202211-B1 (BR)
Inventor: THOMAS PIERRE-ARMAND
IPC: B63B9/06
Filed: 2002-06-12
Abstract: Lifting units (30) designed to work from the seabed are fixed to the ends of the hanging equipment (10) and then applied to the seabed. The lifting units lift the equipment to allow the vessel hull to pass underneath and engage in the space defined between the lifting units. The equipment is lowered onto the hull, the lifting units dismounted, and the equipment is connected to the hull of the vessel  The equipment is installed on a barge before the lifting units are applied to the seabed, the equipment and the barge are separated during the lifting operation and the barge is then removed. A number of skate assemblies are fixed at the points where the lifting units press on the seabed, with surfaces guiding the hull laterally. A number of stiffeners (16A, 16B, 16C, 16D, 18A, 18B, 18C) are fixed to the equipment before lifting to form a rigid structure between the lifting units at least during the lifting and lowering of the equipment, and these stiffeners are removed to give the equipment the necessary flexibility after it has been placed on the vessel hull. Each lifting unit has a leg with a rack which is designed to press on the seabed and a device for guiding and driving the leg mounted to move on the equipment. This device includes at least one pinion engaged with the rack and a reduction motor driving the pinion to move the leg relative to the guiding and driving device. An Independent claim is also included for equipment to carry out the above process, comprising equipment to be mounted on the vessel hull; lifting units; and devices for temporarily connecting the lifting units to the equipment at each end with a gap which allows the vessel to pass between the lifting units.
Patent BR-PI0211870-B1 (BR)
Inventor: HUTCHINS JAMES E
IPC: A61K39/002
Filed: 2002-08-29
Abstract: The present invention provides improved methods and compositions for producing oocysts. The oocysts produced according to the invention find use in the manufacture of vaccines. In preferred embodiments, the present invention provides methods and compositions for the production of Eimeria oocysts. Vaccines containing Eimeria oocysts, sporocysts and/or sporozoites produced according to the present invention may be used to immunize birds against coccidiosis either in ovo or post hatch.
Patent BR-9701846-B1 (BR)
Inventor: KORI TERUHIKO
IPC: H04N5/913
Filed: 1997-04-18
Abstract: Regular burst signals from video line (n+0) to line (n+3) are replaced by modified burst signals which function as copy prohibit signals. The phase of the modified burst signals is controlled by controlling at least one of the orthogonal vectors into which the phase of the regular burst signal is resolved, and the phase vector of the modified burst signals is equal to the average value of the phase vector of the regular burst signals in lines (n+0) through (n+3). The phase vector of the modified burst signal in line (n+2) exhibits a phase difference of 135 DEG  from the phase vector of the original regular burst signal in that line and causes image disturbances when the thus-modified video signal is recorded and reproduced by a VCR. The phase vector of the modified burst signal in each of lines (n+0), (n+1) and (n+3) exhibits a difference as small as 45 DEG  from the phase vector of the original regular burst signal in those lines. <IMAGE>
Patent BR-9915924-B1 (BR)
Inventor: ZELLER MARTIN
IPC: C07B61/00
Filed: 1999-12-01
Abstract: The invention relates to alpha-sulfin- and alpha-sulfonamino acid amides of the general formula Iincluding the optical isomers thereof and mixtures of such isomers,whereinn is a number zero or one;R1 is C1-C12alkyl, C1-C12alkyl substituted with C1-C4alkoxy, C1-C4alkylthio, C1-C4alkylsulfonyl, C3-C8cycloalkyl, cyano, C1-C6alkoxycarbonyl, C3-C6alkenyloxycarbonyl or C3-C6alkynyloxycarbonyl; C3-C8cycloalkyl; C2-C12alkenyl; C2-C12alkynyl; C1-C12haloalkyl; or a group NR12R13 wherein R12 and R13 are each independently of the other hydrogen or C1-C6-alkyl, or together are tetra- or penta-methylene;R2 and R3 are each independently hydrogen; C1-C8alkyl; C1-C8alkyl substituted with hydroxy, mercapto, C1-C4alkoxy or C1-C4alkylthio; C3-C8alkenyl; C3-C8alkynyl; C3-C8cycloalkyl; C3-C8cycloalkyl-C1-C4alkyl; or the two groups R2 and R3 together with the carbon atom to which they are bonded form a three- to eight-membered hydrocarbon ring;R4, R5, R6 and R7 are each independently hydrogen or C1-C4alkyl;R8 is C1-C6alkyl, C3-C6alkenyl or C3-C6alkynyl;R9 and R10 are each independently hydrogen or C1-C4alkyl; andR11 is either in whereinR14, R,15, R16 and R17 are each independently hydrogen or C1-C4alkyl,X is oxygen, sulfur or -NR18-, wherein R18 is hydrogen or C1-C4alkyl, andA is optionally substituted mono- or polycylic aryl or heteroaryl, andto the preparation of those substances and to agrochemical compositions comprising at least one of those compounds as active ingredient. The invention relates also to the preparation of compositions and to the use of the compounds or of the compositions in controlling or preventing the infestation of plants by phytopathogenic microorganisms, especially fungi.
Patent CH-700929-B1 (CH)
Inventor: HENSELER MARKUS
IPC: B66B5/00
Filed: 2007-02-06
Abstract: The invention relates to a drive for an elevator car and to its counterweight. Said drive is a gearless traction drive comprising a stationary stator and an external, rotating drive cylinder (26) that is equipped with permanent magnets on the inside. Drive cables (41, 42) for the elevator car and the counterweight are guided in the cable grooves (8) on said drive cylinder (26). Said traction drive is suspended on a bridge (25) that is secured to the vertical guide rails (23,24) for the elevator car and the counterweight.
Patent CH-702241-B1 (CH)
Title: Dolly.
Inventor: MUELLER CHRISTIAN
IPC: E21D11/10
Filed: 2008-02-13
Abstract: The trolley (13) has height-adjustable lifting legs (51), and two trussed beams (53, 53') for connecting the lifting legs, where the legs have fastening flanges (75) on three sides. Transverse beams (43) are screwed with the trussed beams for connecting the trussed beams with one another. The transverse beams are made from transverse beam rods (40.1-40.4) that are screwed among each other, where the rods comprise steel sections with an upper belt (44) and a lower belt (46). Trussed bars are provided at the trussed beams and comprise a perforation with borings in grid spacing.
Patent CH-700497-B1 (CH)
Inventor: GUIGNARD ROGER
IPC: G04B23/04
Filed: 2007-03-14
Abstract: The device has an alerting hour disk (19) carrying indications corresponding to hours and an alerting minute disk (21) comprising indications corresponding to minutes, where one of the disks is in the form of a crown wheel provided with an inner teeth (24). The teeth are gripped with a mobile element (23). The mobile element is integrated with the other disk. The crown wheel is off-centered with respect to a hand of a mechanical alarm watch. The alerting minute disk is integrated to a triggering wheel that is driven in rotation by a winding and alarm time setting crown.
Patent CH-706126-B1 (CH)
Title: Timepiece, has display element comprising portion to rotate wheel, and another portion provided with guide pin at end, and retrograde display mechanism including opening defining walls to form guide rail that cooperates with guide pin
Inventor: AEBERHARD ALAIN
IPC: G04B19/02
Filed: 2008-03-25
Abstract: The timepiece has a frame and a retrograde display mechanism for displaying periodic time information. The frame includes a drive train that comprises a pinion (26b) and is connected to a power source. A wheel (28) is driven by the drive train and provided with a display element. The display element includes a portion (30a) to rotate the wheel, and another portion (30b) moving relative to the former portion and provided with a guide pin (32) at an end. The mechanism includes a bridge mounted on the frame, and an opening defining walls to form a guide rail that cooperates with the guide pin.
Patent WO-2004014770-B1 (WO)
Title: Dispositifs pour guider une bande de matiere de largeur moyenne, element de guidage pour guider une bande de matiere de largeur moyenne et machine de traitement qui comprend ces dispositifs
Inventor: HERBERT BURKARD OTTO
IPC: B65H23/32
Filed: 2003-07-26
Abstract: La présente invention concerne un dispositif pour acheminer une bande de matière (17, 22, 23, 24) dans une machine de traitement, présentant un système de repérage (16, 51) et au moins un autre élément de guidage (28, 30, 41, 41') qui imprime au mouvement de la bande de matière un changement de direction ou un décalage. Le système de repérage (26, 51) et l'autre élément de guidage (28, 30, 41, 41') sont disposés pour pouvoir se déplacer contre un dispositif de guidage (08, 42, 46, 54) commun transversalement à la direction de la bande de matière (17, 22, 23, 24) en déplacement.
Patent DE-2238017-B1 (DE)
Title: Flocculant for dewatering sludge - comprising aqs polyacrylamide stock soln stabilised by acidification
IPC: C02F1/54
Filed: 1972-08-02
Abstract: Flocculant comprises an acid aq. soln. obtd. by dissolving a solid acrylamide (co)polymer (I) in water and adjusting to pH 6.5 (2-5). (I) consists of (a) is not 25 wt.% acrylamide (w.r.t. (I)), (b) opt. water-soluble, (non)ionic radical-polymerisable monomers, in which the amt. of any monomers with anionic gps. is not more than half the molar amt. of those with cationic gps. and (c) opt. minor amts. of radical-polymerisable monomers which are insol. or sparingly soluble in water, in an amt. not detrimental to the water-solubility of (I). Acidification eliminates the loss of viscosity and effectiveness of aq. (I) solns. so that stock solns. can be stored for long periods. It is also possible to use a solid mixt. of (I) and a suitable amt. of a solid acid to prepare the soln. (I) are cheaper and generally more effective than quat. ammonium polymers also used as flocculants.
Patent DE-2417874-B1 (DE)
Title: Rotary magnetic field generator for magnetic domain storage elements - is energized and deenergized within quarter of cycle
Inventor: NAVRATIL FRANZ DIPL-ING
IPC: G11C11/14
Filed: 1974-04-11
Abstract: The generator has a pair of crossed coils each forming part of a resonance circuit, and each resonance circuit is in series with a time function element, a variable voltage supply and a switch which is controlled by means of a control voltage out of phases by 90 deg.. Pref. the variable supply for the apparatus is connected through an RC element forming the time function element to one resonance circuit terminal of the storage element and the switch is connected to the other. The switch may be an npn power transistor or a pnp transistor may be used.
Patent DE-2459789-B1 (DE)
Title: Radio TV camera system with additional transmission channels - uses one MHZ wide gaps in bands four and five at eight MHZ spacings
Inventor: MEINHOLT ALBRECHT DR-ING
IPC: H04N7/06
Filed: 1974-12-18
Abstract: The radio television camera system has additional transmission channels which are accommodated in the 1MHz wide gaps in bands IV/V at 8 MHz spacings. At the transmitter the television signal is sub-divided by an arrangement of filters into n frequency regions each of which has a bandwidth of less than 1 MHz. To transmit these frequencies n carrier signals are used whose frequencies are chosen so that the n sideband signals resulting from SSB amplitude modulation are transmitted in n of the 1 MHz gaps at spacings of 8 MHz. At the receiver the television signal is retrieved by demodulating the sidebands or frequency packets.
Patent DE-2909472-B1 (DE)
Inventor: SCHLINK WILHELM
IPC: G01D15/16
Filed: 1979-03-10
Abstract: 1. Ink cartridge fountain pen with compensating device and separate channels for ink and air, whereby a part of the air channel is formed to act as control path for uniform ink supply, and with a receiving stud for the replaceable ink cartridge at the rear end of the compensating device, characteirzed in that the control path (16, 40) contained in the air channel (14, 39) for controlling the ink supply is formed of boundary surfaces (17, 42) at the compensating device (13, 38) and of boundary surfaces (5a, 43) at the cartridge front part (5) after inserting eh cartridge into the fountain pen.
Patent WO-0128510-B1 (WO)
Title: Composition transparente pour batonnet antisudorifique comprenant dibenzylidene sorbitol acetal
Inventor: SCAFIDI ANTHONY ALOYSIUS
IPC: A61K8/04
Filed: 2000-10-11
Abstract: L'invention concerne une composition transparente pour bâtonnet antisudorifique qui comprend: une dispersion d'un diméthicone ou d'un diméthicone substitué dans une matrice antisudorifique, ladite matrice antisudorifique comprenant 1) un principe actif antisudorifique; 2) de la silice sublimée; 3) dibenzylidène sorbitol acétal; et 4) un ou plusieurs alcools polyhydriques.
Patent ES-2035792-B1 (ES)
Title: "instalacion para la obtencion de acido cianurico y procedimiento correspondiente"
Inventor: EEK VANCELLS LUIS
IPC: B01J19/28
Filed: 1991-08-21
Granted: 1993-12-16
Abstract: INSTALACION PARA LA OBTENCION DE ACIDO CIANURICO POR PIROLISIS DE UREA, CON UN PRIMER REACTOR ROTATORIO DONDE SE FORMAN LAS BOLAS DE CIANURATO DE UREA Y UN SEGUNDO REACTOR DONDE TIENE LUGAR DICHA PIROLISIS; EL PRIMER REACTOR DISPONE DE UNA ALETA HELICOIDAL INTERNA, Y EL SEGUNDO REACTOR ES TAMBIEN GIRATORIO; A SU SALIDA SE ENCUENTRA UN TUBO DE COMUNICACION QUE LO COMUNICA CON UN RECIPIENTE SEPARADOR DE SOLIDOS, EL CUAL RECIBE UNA SOLUCION ACUOSA SUSCEPTIBLE DE ALCANZAR UN NIVEL DE TRABAJO, POR DEBAJO DEL CUAL SE ENCUENTRA LA BOCA DE ACCESO DEL TUBO AL RECIPIENTE; DICHO SEPARADOR ESTA DOTADO DE UNA VALVULA INFERIOR DE VACIADO, Y DE UN TUBO SUPERIOR DE SALIDA DE GASES.
Patent ES-2062949-B1 (ES)
Title: Mostrador de venta
Inventor: HESTERBERG DETLEF
IPC: A47F3/00
Filed: 1993-04-06
Granted: 1998-02-16
Abstract: MOSTRADOR DE VENTA. PARA UN MOSTRADOR DE VENTA PARA ALIMENTOS, CONSTITUIDO POR UNA PARTE INFERIOR QUE PUEDE COLOCARSE SOBRE EL SUELO INFERIOR Y UNA PARTE SUPERIOR CON SUPERFICIES DE ESCAPARATE, VITRINAS Y COMPONENTES SIMILARES, PUDIENDO TENER LUGAR ADEMAS LA INSTALACION DEL MOSTRADOR DE VENTA, SE PROPONE QUE LA PARTE INFERIOR (1) DEL MOSTRADOR ESTE CONSTITUIDA POR PATAS (4) QUE VAN DISPUESTAS VERTICALMENTE Y EN DIRECCION TRANSVERSAL A LA EXTENSION LONGITUDINAL DEL MOSTRADOR Y QUE ESTAN ALINEADAS A DISTANCIA UNA DE OTRA A LO LARGO DE TODO EL RECORRIDO LONGITUDINAL DEL MOSTRADOR, SIGUIENDO SU FORMA Y RECORRIDO, Y QUE LA PARTE SUPERIOR (2) DEL MOSTRADOR CONSISTE SUSTANCIALMENTE EN UNA PLANCHA (5) QUE VA COLOCADA SOBRE LAS SUPERFICIES FRONTALES DE LAS PATAS (4) Y QUE CONSTITUYE UN SOPORTE DE PIEZAS SUPERPUESTAS Y ADOSADAS FIJABLES A LA MISMA, EN PARTICULAR VITRINAS (3) Y SUPERFICIES TIPO BANDEJA. (FIGURA 2).
Patent ES-2110886-B1 (ES)
Title: Perfeccionamientos en maquinas para armar cajas.
Inventor: MUR GIMENO EMILIO
IPC: B31B120/40
Filed: 1994-07-07
Granted: 1998-12-01
Abstract: PERFECCIONAMIENTOS EN MAQUINAS PARA ARMAR CAJAS. EL INVENTO SE RELACIONA EN GENERAL CON LAS MAQUINAS DE MANIPULACION DE CONTENEDORES FORMADOS A PARTIR DE UN MATERIAL TROQUELABLE, --POR EJEMPLO-- CARTON ONDULADO. DE MANERA MAS CONCRETA LA INVENCION SE REFIERE A UNOS PERFECCIONAMIENTOS INTRODUCIDOS EN LAS MAQUINAS AUTOMATICAS DE MANIPULACION, CON CUYOS PERFECCIONAMIENTOS, ESTAS MAQUINAS PUEDEN REALIZAR OPERACIONES ESPECIALES PREVIAMENTE SELECCIONADAS PARA FORMAR CAJAS DE DIFERENTES TAMAÑOS Y ALTURAS. ESTOS PERFECCIONAMIENTOS AFECTAN CONCRETAMENTE, AL MANDRIL MOLDEADOR QUE INTRODUCE LAS PLACAS PREFORMADAS EN EL MOLDE CONFIGURANDO LA CAJA Y A UNOS PLEGADORES ESPECIALES QUE ESTAN CAPACITADOS PARA PLEGAR, EN EL INTERIOR DEL CONTENEDOR, SOLAPAS QUE LO REFUERZAN Y EN ALGUNOS CASOS, FORMAN BORDES DE ASIENTO O APOYO PARA SOPORTAR OTRO U OTROS CONTENEDORES QUE SUCESIVAMENTE SE SUPERPONEN FORMANDO APILAMIENTOS.
Patent ES-2113809-B1 (ES)
Title: Antena polivalente multidirecional de aplicacion a vehiculos en general.
Inventor: ALMAZAN SANCHEZ JESUS
IPC: H01Q1/27
Filed: 1995-10-20
Granted: 1999-01-16
Abstract: UNA ANTENA POLIVALENTE MULTIDIRECCIONAL DE APLICACION EN VEHICULOS EN GENERAL, PARA CAPTAR SEÑALES DE TELEVISION, RADIO Y TELEFONIA MOVIL, ESTA PROVISTA DE UN CUERPO DISEÑADO PARA UNA BAJA RESISTENCIA AERODINAMICA Y EN CUYO INTERIOR SE ALOJAN LOS DISTINTOS ELEMENTOS DE ANTENA, A CUYO SEMI-CUERPO INFERIOR (2) SE SUJETA UN TUBO (4) EXTERIORMENTE ROSCADO QUE POR SU PARTE SUPERIOR SUSTENTA UNA PLACA (7) QUE ADEMAS DE FORMAR PARTE DE LOS PROPIOS ELEMENTOS DE ANTENA SIRVE TAMBIEN COMO MEDIO DE SOPORTE PARA LAS OTRAS PLACAS CON ELEMENTOS DE ANTENA, Y DE MODO QUE LA CONEXION ELECTRICA ENTRE DICHOS ELEMENTOS DE ANTENA Y LOS AMPLIFICADORES CORRESPONDIENTES SE REALIZA POR MEDIO DE CABLES (9) APANTALLADOS QUE PASAN POR EL INTERIOR DEL TUBO (4) Y HABIENDOSE PREVISTO ADEMAS UNA JUNTA (11) POR LA CARA EXTERNA DEL SEMI-CUERPO INFERIOR (2).
Patent ES-2125790-B1 (ES)
Title: Inserto para instalacion de azulejos y procedimiento de instalacion de azulejos.
IPC: E04F19/02
Filed: 1995-12-29
Granted: 1999-11-16
Abstract: Inserto para instalación de azulejos y procedimiento de instalación de azulejos, que incluye un cuerpo alargado provisto de dos superficies laterales separadas enfrentadas respectivamente a dos, bordes de las caras de dos azulejos dispuestos a lo largo del inserto con una separación definida entre las dos superficies, recibiendo parcialmente mortero de argamasa. Un miembro superior montado sobre unos bordes superiores de las superficies laterales uniéndolas entre sí. También se describe un procedimiento de instalación de azulejos que utiliza el inserto de instalación, consistente en colocar un primer azulejo sobre una superficie recubierto de mortero colocando el inserto a lo largo de un borde del mismo. Seguidamente se coloca un segundo azulejo a lo largo del inserto, dejándose el inserto emparedado entre los dos azulejos. El miembro superior del inserto de instalación se extiende hacia ambos lados cubriendo parcialmente los bordes marginales de los azulejos proporcionándose unaeunión estética entre los dos azulejos.
Patent ES-2158750-B1 (ES)
Title: Procedimiento para la obtencion de materiales ceramicos porosos compuestos de mullita en forma de fibras cortas monocristalinas.
Inventor: PASCUAL COSP JOSE
IPC: C04B35/185
Filed: 1998-05-29
Granted: 2002-04-16
Abstract: El objeto de la invención es un procedimiento de preparación de materiales cerámicos porosos compuestos de mullita y mullita- alúmina en forma de fibras cortas monocristalinas obtenidas por vía química partiendo de una suspensión acuosa de caolinita y de hidróxido de aluminio. Este último se obtiene por precipitación en un medio básico empleando amoníaco o una amina, hexametilendiamina (HMDA), y una disolución de sal de aluminio mezclada previamente con la suspensión de caolinita. La sal de aluminio se obtiene a partir de virutas, polvo y torneaduras metálicas de aluminio como aleación, procedente de residuos reciclados de su manufactura y utilización, mediante disolución ácida. Los precursores obtenidos se someten a tratamiento térmico a 1500-1600°C para la obtención de mullita por reacción química, siendo más ventajoso el uso de caolinita molida y la amina, produciéndose cuerpos cerámicos porosos (50%).
Patent ES-2160032-B1 (ES)
Title: Mecanismo extractor para maquinas de venta automatica.
Inventor: LOPEZ RUIZ JOSE MARIA
IPC: G07F11/24
Filed: 1999-02-12
Granted: 2003-02-16
Abstract: Mecanismo extractor para máquinas de venta automáticas, especialmente para venta de productos envasados en recipientes (3) cilíndricos o prismáticos que van apilados horizontalmente al tresbolillo, formando dos columnas, limitadas entre dos tabiques paralelos (1 y 2), estando el mecanismo extractor compuesto por un elemento de retención giratorio sobre el que apoya el envase (3'') que ocupa la posición inferior. El elemento de retención (4) está constituido por al menos una pieza de contorno aproximadamente semicircular giratoria sobre su eje (5) y dispuesta de modo que el borde curvo (6) delimite con el borde inferior (7) del tabique enfrentado una sección de paso de anchura inferior a la de los envases (3''), mientras que el perfil recto (8) delimite una sección de paso de anchura ligeramente mayor, para permitir la salida del envase (3'').
Patent ES-2161138-B1 (ES)
Title: Preparation of liquid crystal materials consists of reaction of a ligand with dinitrile to produce analogues of phthalocyanine
Inventor: TORRES CEBADA TOMAS
IPC: C09B47/00
Filed: 1999-05-12
Granted: 2002-07-16
Abstract: The preparation of liquid-crystal materials comprises reaction of a three-unit ligand with a substituted dinitrile in the presence of a metal salt of a bivalent transition metal.