baber/WOPTO huggingface dataset:
Patent ES-2411982-B1 (ES)
Title: Peldaño para escaleras mecánicas y procedimiento de fabricación
Inventor: GONZALEZ ALEMANY JOSE MIGUEL
IPC: B66B23/12
Filed: 2011-06-24
Granted: 2014-03-11
Abstract: Peldaño para escaleras mecánicas y procedimiento de fabricación. El peldaño tiene: una primera superficie (1) en una zona pisable que tiene un material que tiene un coeficiente de fricción entre 0?3 y 0?8, para incrementar una estabilidad de los pasajeros; una estructura portante (2) de la primera superficie (1) para: soportar la primera superficie (1); albergar primeros dispositivos de conexión (3) a sistemas de arrastre (30). El peldaño permite una mayor facilidad para desmontar los componentes, una disminución de ruido de funcionamiento, una mejora en la resistencia del peldaño y un zócalo más rígido frente a cargas laterales. En el procedimiento, la primera superficie (1) es obtenida mediante un procedimiento como: moldear un material compuesto que tiene una resina; inyectar a una baja presión una resina; termoconformar mediante vacío una lámina de una resina.
Patent ES-2376437-B1 (ES)
Title: Procedimiento para la impresión de un objeto y máquina impresora.
Inventor: ARNAU MANRESA LLUIS MARIA
IPC: B41F17/00
Filed: 2012-01-27
Granted: 2012-11-22
Abstract: Procedimiento para la impresión de un objeto y máquina impresora.#Comprende las siguientes fases: una primera fase en la que unos medios de impresión imprimen de manera directa o indirecta sobre un soporte, un determinado motivo, quedando sobre dicho soporte una imagen derecha pero invertida, una segunda fase en que dicho soporte, que transporta el motivo, es dirigido hacia el objeto a marcar, y una tercera fase en que el soporte, por la cara impresa con el motivo, imprime el objeto por contacto.
Patent ES-2406384-B1 (ES)
Title: Transportador deslizante
Inventor: TAYLOR ALFRED ALEXANDER
IPC: B65G27/04
Filed: 2012-04-16
Granted: 2014-08-04
Abstract: Un transportador deslizante (10) que tiene una pluralidad de bandejas (11, 12, 13). Cada una de las bandejas (11, 12, 13) tiene un extremo (19) con un borde (29) inclinado en la dirección longitudinal al desplazamiento (14) de la bandeja (11, 12, 13).
Patent ES-2431738-B1 (ES)
Title: Sistema de control del proceso de carga/descarga de vehículos eléctricos, y procedimiento de carga mediante dicho sistema
Inventor: SANZ OSORIO JOSE FRANCISCO
IPC: B60L11/18
Filed: 2012-05-24
Granted: 2014-09-16
Abstract: Sistema de control del proceso de carga/descarga de vehículos eléctricos, y procedimiento de carga mediante dicho sistema.#Permiten aportar una solución rápida, eficiente e intuitiva para la recarga de vehículos eléctricos (300), proporcionando además capacidad de comunicación y controlabilidad por parte de un agente externo para un acceso y control remoto del sistema. Dicho sistema de control está destinado a estar incorporado en un equipo cargador/descargador (100) conectable a un vehículo eléctrico (300) a través de un cable conector (200), destacando fundamentalmente porque el equipo cargador/descargador (100) comprende una interfaz gráfica de usuario (101) dotada de una pantalla táctil (102), y adaptada para permitir una interactuación rápida y directa del usuario para la selección e introducción de diferentes parámetros y opciones de recarga de su vehículo eléctrico (300).
Patent ES-2385799-B1 (ES)
Title: Dispositivo de colocación, apriete y desmontaje de abrazaderas
Inventor: GUTIERREZ FLEITAS IGNACIO JESUS
IPC: B25B13/48
Filed: 2012-06-26
Granted: 2013-06-14
Abstract: El nuevo dispositivo (1) destinado a la colocación, apriete y desmontaje de abrazaderas (4), está destinado al sector de instalaciones, permitiendo realizar esta operación de una forma sencilla y eficiente. El cuerpo (10) y el eje (13) pueden ser una pieza o dos que se unen por medios convencionales. El dispositivo dispone de medios para sujetar la abrazadera. Se puede acoplar y/o accionar con una máquina atornilladora convencional (5), llave de vaso, llave inglesa, llave fija o con un mango. Se han previsto versiones en las que se puede utilizar sin quitar la punta de atornillar (14) de la máquina atornilladora o usar una herramienta manual.
Patent ES-2444295-B1 (ES)
Title: Sistema de prevención de ahogamientos
Inventor: REGOJO ZAPATA JOSÉ ALEJANDRO
IPC: G08B21/08
Filed: 2012-08-24
Granted: 2014-12-09
Abstract: Sistema de prevención de ahogamientos del tipo de los que emiten una señal de alarma cuando detectan que un usuario lleva demasiado tiempo sumergido en el agua. Especialmente diseñado para ser empleados en piscinas con gente que no sabe o no puede nadar. Comprende al menos una unidad emisora (1) de radio posicionada en un arnés de seguridad (2) que se coloca en la cabeza del usuario. Comprende una unidad de alta del emisor (3) que controla la activación de las unidades emisoras (1) y comprende una antena que recibe las señales de las unidades emisoras (1) y una unidad CPU (4) que las procesa emitiendo una señal de alarma en caso de dejar de detectar señal desde una unidad emisora (1) durante un tiempo predeterminado. Hay una unidad de comunicaciones (5) que recoge y envía información sobre altas y bajas de las unidades emisoras (1) e incidencias del sistema.
Patent ES-2574493-B1 (ES)
Title: Máquina de ensayo de válvulas y procedimiento asociado
Inventor: CHILLON MORENO JOSÉ MARÍA
IPC: G01M13/00
Filed: 2014-12-18
Granted: 2017-04-11
Abstract: Máquina de ensayo de válvulas y procedimiento asociado.#La presente invención se refiere a una máquina de ensayo de válvulas, en concreto ensayos de estanqueidad, ciclos de presión y resistencia a fatiga, en función del tiempo y par mecánico aplicado, para conseguir los requisitos mínimos de idoneidad para su uso, además de al procedimiento asociado a dicha máquina, donde la máquina de ensayo de válvulas comprende un sistema de transmisión de los esfuerzos del motor de accionamiento del cierre y apertura de la válvula a dicha válvula que asegura una transferencia de esfuerzos suave, con la consiguiente atenuación de una brusca transmisión de fuerzas del par a aplicar y una eliminación de ruidos en la interpretación de las mediciones a realizar.
Patent ES-2586461-B1 (ES)
Title: Composición detergente en forma de pastilla efervescente
Inventor: CAPARROS CASCO JORDI
IPC: C11D3/26
Filed: 2015-03-12
Granted: 2017-12-01
Abstract: Composición detergente en forma de pastilla efervescente.#La presente invención se refiere a una composición detergente en forma de pastilla efervescente que presenta una elevada velocidad de disolución y una buena estabilidad. También se refiere a un procedimiento para prepararla, y al empleo de la misma para la preparación de soluciones acuosas de composiciones de limpieza para la limpieza de superficies duras y ropa. La composición detergente es muy versátil y mediante la incorporación de componentes específicos permite la preparación de soluciones acuosas para la limpieza de materiales diversos.
Patent ES-2596517-B1 (ES)
Title: Dispositivo generador de energía eléctrica.
Inventor: DE LA TORRE ORTIZ FERNANDO
IPC: F03D3/00
Filed: 2015-07-07
Granted: 2017-10-19
Abstract: Dispositivo generador de energía eléctrica, destinado a incorporarse en un medio de transporte (7) terrestre o marítimo, como un vehículo automóvil, autobús, camión u otro de mercancías o pasajeros, eléctrico o no, o tren, eléctrico o no, o barco, comprende, al menos, una pala rotativa (2) de varias aspas (3), unida a un eje principal (4), de modo que al moverse lo hace girar, con al menos un generador eólico-eléctrico (5) acoplado a uno de los extremos de dicho eje principal (4) y conectado, o a un acumulador (6) o, en su caso, al sistema eléctrico del medio de transporte (7), efectuada esta incorporación de modo que la fuerza del viento y/o corriente de agua generados por el desplazamiento del transporte (7) determina el movimiento de la pala rotativa (2) el giro del eje principal (4) y, consecuentemente, la producción de energía eléctrica por el generador eólico-eléctrico (5).
Patent HR-P20090077-B1 (HR)
Inventor: DESAI MANOJ C
IPC: A61K31/427
Filed: 2009-02-06
Abstract: Ova aplikacija prikazuje spoj Formule I ili odgovarajuću farmaceutski prihvatljivu sol, solvat i/ili ester, pripravke koji sadrže takve spojeve, terapijske metode koje uključuju davanje takvih spojeva i terapijske metode koji uključuju davanje takvih spojeva s najmanje jednim dodatnim terapijskim sredstvom.
Patent JO-1478-B1 (JO)
Title: Novel androstane - 17B -Carboxylic acid esters
Inventor: PAUL HAKAN ANDERSSON
IPC: C07J/
Filed: 1986-04-01
Granted: 1988-03-10
Abstract: The invention refers to compounds having anti-inflammatory activity characterized by the formula or a stereoisomeric component thereof, in which formula X1 represents a hydrogen, chlorine, bromine or fluorine atom; X2 represents a hydrogen, chlorine, bromine or fluorine atom; R1 represents a beta -hydroxy group, a beta -chlorine atom or an oxo group; R2 represents a hydrogen atom, a methylene group or an alpha - or beta -methyl group; R3 represents a hydrogen atom or an acyl group of 1 through 8 carbon atoms; R4 represents a hydrogen atom, a (C1-C5) alkyl group or a phenyl group; R5 represents a hydrogen atom, a (C1-C5) alkyl group or a phenyl group; Y represents either CR7R8, O, S or NR9, where R7, R8 and R9 are selected from hydrogen or from straight or branched hydrocarbon chains having 1-8 carbon atoms or from a phenyl group. R6 represents a hydrogen; a methyl group; a phenyl or an alkenyl or cycloalkylene group optionally substituted by alkyl, nitro, carboxy, alkoxy, halogen, cyano, carbalkoxy and trifluoromethyl group(s); a (C1-C5) alkyl group substituted by at least one halogen atom; a saturated or unsaturated carbocyclic or heterocyclic (O, S, N) ring system containing 3-10 atoms in the ring system; a C1 alkyl group substituted by either one or two alicyclic or aromatic 3,4,5 or 6-numbered ring system(s) or one, two or three straight or branched alkyl or alkenyl group(s) of 1 through 18 carbon atoms; and represents a single or double bond. The invention also refers to a process and intermediates for the preparation of these compounds, a pharmaceutical preparation containing one of the compounds and a method for the treatment of inflammatory conditions.
Patent JO-1824-B1 (JO)
Title: Rolling up grape leaves machine by hand
Inventor: MOHAMMAD YEHYA BEN ABDO
Filed: 1995-03-15
Granted: 1995-07-05
Abstract: ROLLING UP GRAPE LEAVES MACHINE BY HAND
Patent KR-810000830-B1 (KR)
Title: Unloading and tilting device in trucks
Inventor: OHKITA HIROTOSHI
IPC: B60P1/48
Filed: 1976-12-11
Granted: 1981-08-07
Abstract: The unloading and tilting device for container in trucks is composed of a tilting frame(2) which is supported with tiltable by a shaft(4) at rear portion of a truck frame(1), an L-shaped frame(3) which has a hook(19) at upper part for connecting with a container(c), a lift cylinder(8) which is connected between the truck frame(1) and the L-shaped frame(3), a rocker arm(14) at the tilting frame(2), and the supporting mechanism(b) for the rocker arm.  The L-shaped frame(3) is stood by the elongation of the lift cylinder(8), and engaged with the tilting frame(2) so as to tilt around the shaft(4) by the rocker arm(14).
Patent KR-810000609-B1 (KR)
Title: Process for preparing derivatives of 6-(m-aminophenyl)-2,3,5,6-tetra hydroimidazo(2,1-e)thiazole
Inventor: LEEMING M
IPC: C07D513/04
Filed: 1977-10-14
Granted: 1981-06-07
Abstract: Title compds. (I; R = H or CH3), useful as anthelmintic, were prepd. by reacting 6-(m-aminophenyl)2,3,5,6-tetrahydroimidazo[2,1 b thiazole(m-aminotetramizole) (II) with compd. III or its acid-halogen compd., or activated ester or their mixed anhydride.  Thus, 3-carboxy-5-methylisoxazole was refluxed with thionylchloride for 1hr. to give 3-carboxy-5-methylisoxazole (A), and d1-6-(m-aminophenyl)-2,3,5,6-tetrahydroimidazo[2,1-b thiazole dissolved in hydrous methanol and A were added, stirred, washed, extracted to give d1-6-[m-(5-methyl isoxazole-3-carboxamido)phenyl -2,3,5,6-tetrahydroimidazo[2,1-b thiazole.
Patent KR-810001432-B1 (KR)
Title: Flat knitting machine
Inventor: SHIMA MASAHIRO
IPC: D04B15/78
Filed: 1978-11-02
Granted: 1981-10-21
Abstract: A flat knitting machine having needle jacks which are longitudinally movably disposed in the needle tricks, behind needles, the butts of the needle jacks being depressible into the tricked needle bed is disclosed, wherein the improvement comprises selector jacks disposed in the needle tricks, behind and moved back and forth by electromechanical needle selector means on the carriage and means acting on the needle jacks to depress the butts thereof into the needle tricks.
Patent KR-840000358-B1 (KR)
Title: Stored cryogenic refrigeration device
Inventor: TYREE JR LEWIS
IPC: F25B1/00
Filed: 1979-11-12
Granted: 1984-03-26
Abstract: A holding chamber may be supplied from a storage vessel system with a cryogen, such as liquid CO2 or it may itself be large enough to take the place of a separate storage vessel.  The temp. within the holding chamber is reduced to the triple point or below to form a refrigeration reservoir of solid cryogen, as by removing vapour from the chamber to cause evaporation or by employing mechanical refrigeration.  The stored cooling power of the reservoir is later employed to meet a large or a periodic refrigeration demand and is after-wards replenished over a number of hours, pref. during a period of non-peak electric demand.
Patent KR-830001979-B1 (KR)
Title: 전력 증폭 회로
IPC: H03F3/26
Filed: 1980-04-15
Granted: 1983-09-29
Abstract: 내용 없음.
Patent KR-860000151-B1 (KR)
Title: Refractory compositions
Inventor: COCHET GERARD
IPC: C04B35/14
Filed: 1980-11-18
Granted: 1986-02-27
Abstract: A refractory, e.g. a fireproof building brick, is composed of refractory aggregates like alumina 80-98 wt.% and a binder 2-20 wt.%. The binder compsns. are as follows: vitrious silica powder in a diameter of less than 1  m 70-96 wt.%; a hydraulic compound, contg. alkali earth metal oxide, 4-30 wt.%; and sodium polyacrylate, as a dispersing agent, 0.5-3 wt.%. It comprises a large amount of fine particles in a diameter of less than 20  m, has a porosity of 10 % and a reduced firing shrinkage of less than 1 %.
Patent KR-860000152-B1 (KR)
Title: Process for the production of a yeast extract
Inventor: REHACEK JOSEF
IPC: C12N1/06
Filed: 1981-04-21
Granted: 1986-02-27
Abstract: A low-salt yeast extract was prepd. by mechanically disintegrating the yeast cells in the presence of a sulphite, suspending the cells by hydrolyzing them, and purifying the yeast with calcium compounds. Thus, Candida utilis suspension, 10 L was adjusted to pH 3.5, treated with 10% -NaSO, and disintegrated in a ball mill. The suspension was hydrolyzed with papain at 55 C for 20 hrs, then centrifuged. The supernatant was teutralized, treated with CaCl, and centrifuged to give yeast extract. The products are used as a seasoning for food products.
Patent KR-840002189-B1 (KR)
Title: Pulse arc welding machine
Inventor: MIZEUNO DOGAJI
IPC: B23K9/09
Filed: 1981-06-25
Granted: 1984-11-28
Abstract: This invention relates to pulse arc welding equipment, which is equipped with a wire electrode and with wire supply equipment that supplies the wire electrode to the matrix. A base curent source supplies the base current between the wire electrode and matrix, and a pulse current source supplies a superposed pulse current between the wire electrode and matrix. A detector monitors the arc discharge voltage between the wire electrode and matrix.
Patent KR-880001895-B1 (KR)
Title: Oiling device of scoll hydraulic machinery
Inventor: HAJAKI EICHI
IPC: F01C1/02
Filed: 1981-10-26
Granted: 1988-09-27
Abstract: The oil feeder for a scroll fluid apparatus includes a fixed scroll, an orbiting scroll and a crankshaft.  The crankshaft has a crank portion connected to the orbiting scroll through a plain bearing and a shaft portion carried by second and third plain bearings.  The oil feeder includes a feeder for generating an oil film pressure in each bearing in dependence upon a lateral load caused by sealed spaces defined by the fixed and orbiting scrolls. This reduces the tilting of the crankshaft during operation.  The feeder has several oil flow passages which respectively face the first, second and third plain bearings and are disposed about an outer peripheral surface of the crankshaft.
Patent KR-890000083-B1 (KR)
Title: Method of making part of a watch case
Inventor: GOGNIAT PAUL
IPC: G04B39/00
Filed: 1983-11-16
Granted: 1989-03-07
Abstract: The glass (1) and surrounding fixture (2) are formed directly by moulding of molten material on respective metallic coatings (3) which provide firm assembly and mask the fixture (2) so that it is not seen through the glass (1).  The fixture may be of zinc, tin, copper, or gold in pure or alloy form.  The alloy may be zinc, aluminium, copper or magnesium.  The coatings may be applied by vacuum or galvanic deposition of several layers.  The fixture may consist of a single annular collar with or without threaded pins for anchoring, or a number of fixing plugs extending perpendicular to the plane of the glass.  It may also serve as a fluid-tight seal.
Patent KR-850001346-B1 (KR)
Title: Korean-english combining type typewriter
Inventor: PARK HUI-JUN
IPC: B41J1/00
Filed: 1984-02-04
Granted: 1985-09-21
Abstract: A Korean-English combining type-ball typewriter has a standard English letter arrangement and simultaneously has a Korean letter arrangement that is composed of two sets of consonants and vowels. Twenty single vowels are type without moving the paper. The two-set- type thpewriter types the same letter-form like a usual four-set-type typewriter using a special method.
Patent KR-910004719-B1 (KR)
Inventor: HAAS GEORGES
IPC: C07C49/84
Filed: 1984-06-14
Granted: 1991-07-10
Abstract: 내용 없음.
Patent KR-900006541-B1 (KR)
Title: The multi-input cmos gate circuitry
Inventor: HASHIRANO MASAROO
IPC: H03K19/094
Filed: 1985-03-19
Granted: 1990-09-07
Abstract: The multi-input CMOS gate circuit has one end of serial-connected nMOS transistor group (MN1-MNn) connected to an output terminal (b) and the other end connected to a first power source (VDD). One end of serial-connected pMOS transistor group (MP1-MPn) is connected to a second power source (Vss), the other end connected to the output terminal (b), and at least one of the pMOS transistor and gate are connected so as to form a complementary type. A fist loading element (ML1) is connected between the output terminal and the second power source.
Patent KR-880000453-B1 (KR)
Title: Process for the preparation of non bubble chalk
Inventor: KIM CHOL-MIN
IPC: C09K13/00
Filed: 1985-07-24
Granted: 1988-04-06
Abstract: The mixture of 60% CaCO3, 8% clay, 2% polyvinyl alcohol and 30% moisture is stirred first and stirred in a vacuum vessel and followed by vacuum forming into chalks and then deaired.  The chalk having minimum porocity is obtained by drying the above product at 60≰for 4hr.
Patent KR-890000908-B1 (KR)
Title: Process for preparing synthetic phospholipid-containing compositions
Inventor: TARCSAY LAJOS
IPC: A61K47/24
Filed: 1985-10-16
Granted: 1989-04-13
Abstract: A compn. of synthetic phospholipid is presented.  Thus, a compn. contg. 586mg t-butanol, 0.1mg N-acetylmuramyl-L-alanyl- Disoglutaminyl-L-alanine-2-(1,2-dipalmitoyl-sn-glycero- 3hydroxyphosphoryloxy)-ethylamide, 75mg sodium 1,2-di-(9- cisoctadecenoyl)-3-sn-phosphatidyl-(s)-serine, and 175mg 1-n- hexadecanoyl-2-(9-cis-octadecenoyl)-3-sn-phosphatidyl choline was proper to i.v. injection.
Patent KR-880001918-B1 (KR)
Title: Process delay element compensating circuit
Inventor: CHOE SUNG-KAB
IPC: G05B6/02
Filed: 1985-12-31
Granted: 1988-09-30
Abstract: A process control circuit comprises a plant controller (I), an output signal controller (II), and a compensation circuit (III) for delay element of process including feedback circuit of the controller (II).  The output (Vo) of disturbance (Up) feedbacked to the controller (I) is turned to time leading signal by R9-10 and C2.  The values of R1-3, R7-9 and C2, C3 are adjusted to reduce the effect of the disturbance which means the transfer function of Vo(S)/Up(S) to be zero regardless of the transfer characteristic or delay time.
Patent KR-930011848-B1 (KR)
Inventor: HENRITE JACK M
IPC: H05B41/14
Filed: 1985-12-31
Granted: 1993-12-21
Abstract: 내용 없음.
Patent KR-900001970-B1 (KR)
Title: Microwave oven sealing
Inventor: YAMAGUCHI KIMIAKI
IPC: H05B6/76
Filed: 1986-03-21
Granted: 1990-03-27
Abstract: An outer frame (3) is spot welded to the outer edge of seal plate (4) .  The outer frame member has an opening disposed opposite to the edge (8) of an entrance opening of the heating member (1). The first sealing cavity (C1) provides a choke to prevent leakage of the fundamental microwave frequency.  The outer edge of the seal plate (4) has a U-shaped suction and defines the second sealing cavity (C2) .  The width (W) and depth (d) of the second sealing cavity (C2) are less than one half the width and the depth of the first sealing cavity.  A dielectric material provides a common cavity cover (9) at the open ends of the sealing cavities.
Patent KR-890002831-B1 (KR)
Title: A solid fuel using refuse
Inventor: PARK BYONG-HO
IPC: C10L5/44
Filed: 1986-04-09
Granted: 1989-08-04
Abstract: A method for prepg. solid fuel comprises (i) mixing molded waste- resin chip 30-40% (obtd. from waste-resin contg. no Cl or S), KClO3/ Cr2O3 1-2%, bentonite 8-12%, and molding the mixt. for chips, (ii) addn.-mixing carbonized wood/chaff (or lower coal) mixt. 30-40% and waste pulp 5-15% with the chip, and (iii) molding so as to be in contact with sufficient 0.
Patent KR-940009548-B1 (KR)
Inventor: HAWWOOD LEOPOLD A
IPC: H04N9/78
Filed: 1986-04-17
Granted: 1994-10-14
Abstract: 내용 없음.
Patent KR-910000598-B1 (KR)
Inventor: NAKAMURA TAKUCHI
IPC: H04N1/00
Filed: 1986-05-10
Granted: 1991-01-26
Abstract: 내용 없음.
Patent KR-930011081-B1 (KR)
Inventor: MACKEL JOHN W
IPC: F16D25/0635
Filed: 1986-07-01
Granted: 1993-11-20
Abstract: 내용 없음.
Patent KR-900006613-B1 (KR)
Title: Process for manufacturing copper base spinodal alloy articles
Inventor: REINSAGEN JOHN H
IPC: B22F3/24
Filed: 1986-12-17
Granted: 1990-09-13
Abstract: Cu-based spinodal alloy article is produced by (a) making a prealloyed Cu-based powder containing 5-35 wt.% Ni; 4-13 wt.% Sn; opticanally one or more from Fe; Mg; Mn; Mo; Nb; Ta; V; Al; Cr, Si, Zn, Zr with each element present in amount up to about 0.5 wt.%; and when more than one is preset the total weight is max. 2 wt.%; and balance of CU; (b) compacting the powder to form a green body with sufficient porosity to be penetratd by a reducing atmosphere or vacuum and the desired size and shape of the article; (c) sintering is a reducing atmosphere or vacuum at least 1650 deg.F for sufficient time to achieve a density of 90-96% theoretical.
Patent KR-950004822-B1 (KR)
Inventor: COLLINS JEROME H
IPC: C08G65/26
Filed: 1987-01-30
Granted: 1995-05-13
Abstract: 내용 없음.
Patent KR-900004583-B1 (KR)
Title: Semi-permeable membranes consisting predominantly of polycarbonates derived from tetrahalobisphenols
Inventor: ANADA JOGINDER N
IPC: C08G64/00
Filed: 1987-04-14
Granted: 1990-06-30
Abstract: A gas sepn. membrane comprises a thin discriminating layer of a polycarbonate formed from a bisphenol of formula (I) with the proviso that at least 25 wt.% of the R gps. are exclusively Br, Cl or mixts. of these. The membrane has a sepn. factor for O2 and N2 of at least 6.1 at ambient temps.. The membrance is pref. annealed by heating to above the beta transition temp. and below the Tg to partly densify the polymer. (I) is tetrabromobisphenol A and the gas sepn. factor is at least 7.0. In formula, R=H, Cl, Br or C1-4 alkyl; R1= -CO-, -S-, - SO2-, -O-, or C1-6 divalent fluorocarbon or inertly substd. C1-6 divalent hydrocarbon radical.
Patent KR-940005703-B1 (KR)
Inventor: LAPARM DAVID J
IPC: H01L21/027
Filed: 1987-08-08
Granted: 1994-06-23
Abstract: 내용 없음.