baber/WOPTO huggingface dataset:
Patent EP-0269339-A2 (EP)
Inventor: WONG CHIU MING
IPC: A61K31/704
Filed: 1987-11-16
Abstract: This invention provides novel compounds of the formula (I):
      including all stereoisomers thereof, and pharmaceutically ac­ceptable salts thereof, wherein, of A and B, one is C=O and the other is S Y; R is hydrogen, hydroxy or methoxy; R₁ is hydrogen or hydroxy; R₂ is hydrogen or hydroxy; X is hydrogen, hydroxy or methoxy and Y is O or O₂; provided that R and X do not both stand for methoxy. 
     These compounds show potent growth inhibition activity against P-388 leukemia cells and are thereofore potentially useful in the treatment of cancer.
Patent EP-0274939-A2 (EP)
Inventor: CHATAUD JEAN
IPC: A61K38/00
Filed: 1987-12-11
Abstract: Preparation of a peptide mixture rich in di- and tripeptides, from an enzyme hydrolysate of proteins; the process comprises: - chromatography of this hydrolysate on a column of a cation exchange resin in acidic form,  - washing the column of exchange resin with water, - elution of the said column of exchange resin with an aqueous solution of an alkali, - and the recovery of the eluate fraction enriched in di- and tripeptides, in particular that which leaves the column of exchange resin from the time when the refractive index of this eluate has reached the value 5 until the time when the pH of this eluate has reached the value 8. <IMAGE>
Patent EP-0263069-A2 (EP)
Inventor: ABEL HEINZ
IPC: B01D19/04
Filed: 1987-09-23
Abstract: Es werden Entschäumungsmittel beschrieben, welche (1) ein Erdalkalimetallsalz einer C10-C24-Fettsäure, (2) ein Dialkylester einer ungesättigten Dicarbonsäure, (3) ein Mineralöl, (4) ein nichtionogener Emulgator, (5) ein anionischer Emulgator und (6) ein Alkylendiamid enthalten, sowie solche Mittel enthaltende flüssige Zubereitungen und ein Entschäumungsverfahren für wässrige Systeme mittels solcher Mittel.
Patent EP-0272240-A2 (EP)
Title: Maleimide resins
Inventor: DAHMS RONALD HERBERT
IPC: C08J5/24
Filed: 1987-12-16
Abstract: Substantially insoluble bismaleimide compo­sitions consisting essentially of bismaleimides of the formula
      where R₁ and R₂ are independently hydrogen, methyl, ethyl or halogenated methyl. The phenyl groups may be substituted. The compositions, having a solubility in acetone of less than about 5% by wt., are useful as melt processable resins for high temperature resistant laminates. Mixtures of such bismaleimides and maleamic acids are substantially soluble. Solu­tions containing polyamines equivalent to amount of maleamic acid are surprisingly stable.
Patent EP-0290964-A2 (EP)
Inventor: TANABE TAKASHI
IPC: G02B6/36
Filed: 1988-05-05
Abstract: A plug of a fiber optic cable connector according to this invention includes first and second cylindrical members (11a, 11b) each with a bottom so as to reciprocate at a predetermined stroke along a ferrule. Leaf springs (20) each having a surface (20a) ascending in the circumferential direction and projections (21) for urging the leaf springs are arranged between the first and second cylindrical members. When the ferrule abuts against an optical device, the first and second cylindrical members are not rotated together and only the first cylindrical member is rotated, thereby detecting a connecting state of optical fibers.
Patent EP-0321638-A2 (EP)
Inventor: HAYES RICHARD ALLEN
IPC: B01D53/22
Filed: 1988-05-18
Abstract: Aromatic polyimide gas separation membranes containing the repeating unit:
      or mixtures thereof 
Where -X, X₁, X₂, and X₃ are independently primary or secondary alkyl groups having 1 to 6 carbon atoms preferably methyl or ethyl, -Z is -H, -X, -X₁, -X₂, or -X₃ and R′ is
        where n = 0 to 4 or alkylene radicals of 1 to 3 carbon atoms and
Patent EP-0303072-A2 (EP)
Inventor: NEUMANN RAINER DR-PHYS
IPC: F21V9/40
Filed: 1988-07-20
Abstract: Fitting for headlamps, especially for motor vehicles, which are equipped with a screening pane or lens which are coated, in particular by zones, with semiconductor materials whose optical transparency can be switched. Arranged in a reflector (10) of a headlamp is an incandescent lamp (11) which emits light beams which radiate via the reflector (10) in the direction of the lens (16) or screen (3). Mounted additionally in the headlamp are controllable light sources (20, 30) which as controlled light sources emit light of a specific wavelength. The lightbeams emanating from the additional light sources impinge on the inner side, provided with bistable crystals, of the lens (16) or of the screen (3), and given a specific light intensity cooperate with the light intensity emanating from the reflector (10) to switch the bistable crystals from optical opacity to optical transparency. The light distribution of a headlamp can be automatically controlled in this way. <IMAGE>
Patent EP-0301536-A2 (EP)
Inventor: KLATT KARL-HEINZ
IPC: B01J35/02
Filed: 1988-07-28
Abstract: For the catalytic oxidation of hydrogen, a palladium alloy having a low induction period up to the catalytic reaction is used. The palladium alloy contains at least 80 % by weight of Pd, at most up to 19.9 % by weight of a further metal from Group 8 of the Periodic Table, especially Ni, and at most 10 % by weight of Cu. <IMAGE>
Patent EP-0296683-A2 (EP)
Inventor: HARLOS HARTMUT
IPC: H03K5/01
Filed: 1988-06-21
Abstract: Ein Verfahren zum Vermindern von Störungen beim Verstei­lern der Flanken eines Nutzsignales durch Verknüpfung mit einem daraus abgeleiteten Versteilerungssignal, das nur bei Überschreiten einer vorgegebenen Grenzamplitude das Nutzsignal beeinflußt, sowie eine Schaltungsanordnung zur Durchführung dieses Verfahrens ermöglichen einen sehr ein­fachen Schaltungsaufbau, insbesondere im Hinblick auf eine platzsparende Integration auf einem Halbleiterkristall dadurch, daß dem Versteilerungssignal (S3) vor der Verknüpfung mit dem Nutzsignal (S1) ein Störunterdrük­kungssignal überlagert wird, das dem negativen, auf die Grenzamplitude begrenzten Versteilerungssignal (S3) entspricht.
Patent EP-0279625-A2 (EP)
Inventor: MOFFAT MATTHEW ERNEST BRUCE DR
IPC: H04N7/16
Filed: 1988-02-16
Abstract: A broadcast television signal (TV) with a sound subcarrier in a selected 8 MHz uhf transmission channel carries additional information in its adjacent channel for e.g. improving picture quality. The additional information is at a relatively low amplitude level and is preferably in digital form. The additional information provides relatively little interference due to existing network planning constraints but is readily received by a specially adapted receiver. Preferably the additional information is transmitted in low energy slots in the adjacent channel in order to reduce interference effects. It is also preferably at a lower level than picture transmission in that adjacent channel.
Patent EP-0283298-A2 (EP)
Inventor: HARPER STEPHEN D
IPC: C08G65/26
Filed: 1988-03-18
Abstract: A method for removing double metal cyanide complex catalyst residue from polyols using alkali metal hydrides is disclosed. In one embodiment, the catalyst residue is converted into an insoluble ionic metal species and separated by filtration using magnesium or aluminum silicate to facilitate separation.
Patent EP-0287251-A2 (EP)
Inventor: KRISHNASWAMY PREM
IPC: B03D1/20
Filed: 1988-03-31
Abstract: A flotation cell for recovery of minerals from ore using a three phase system flotation process provides improved metallurgical recovery through improved pump rotor/stator 24, 26 and cell design by establishing good zonal separation within the cell and minimizing froth turbulence, providing uniform aeration in the cell, and accommodating higher aeration volumes before encountering turbulence. Parameters for the rotor/stator pump assembly 22, a deflector vane 36 forming part of the stator, and for the pump assembly/cell configuration are disclosed.
Patent EP-0293237-A2 (EP)
Inventor: TAKATA TOSHIMASA
IPC: C08G59/06
Filed: 1988-05-27
Abstract: A novel epoxy compound has a chemical structure in which an aromatic ring having a glycidyl radical attached thereto has a tertiary alkyl radical at its ortho or meta-­position. An epoxy resin composition comprising the epoxy compound, a curing agent, and a curing accelerator cures into a product having a low dielectric constant.
Patent EP-0307195-A2 (EP)
Inventor: SAITOH KEICHIRO
IPC: B29L7/00
Filed: 1988-09-08
Abstract: A crosslinked and oriented polyethylene film superior in clarity as well as moistureproofness and having an improved stretchability is produced by a process for producing a cross­linked and oriented polyethylene film such that the degree of crosslinking inwardly decreases across the thickness of the film, comprising using a polyethylene having a density of at least 0.935 g/cm³, a melt index of 0.5 to 20 g/10 min and a high-load melt index to melt index ratio of 40 to 200.
Patent EP-0317148-A2 (EP)
Inventor: DUTTON CHRISTOPHER JAMES DR
IPC: A01N43/90
Filed: 1988-11-07
Abstract: Compounds of the formula:
      wherein the broken line at the 22-23 position represents an optional double bond and wherein either R¹ is H or OH and the double bond is absent, or, the double bond is present and R¹ is absent; 
R² is H, C₁-C₈ alkyl, C₂-C₈ alkenyl, C₂-C₈ alkynyl, alkoxyalkyl or alkylthioalkyl containing from 1 to 6 carbon atoms in each alkyl or alkoxy group, wherein any of said alkyl, alkoxy alkenyl or alkynyl groups may be substituted by one or more halo atoms; or a C₃-C₈ cycloalkyl or C₅-C₈ cycloalkenyl group, either of which may optionally be substituted by methylene or one or more C₁-C₄ alkyl groups or halo atoms; or a 3 to 6 membered oxygen or sulphur containing heterocyclic ring which may be saturated, or fully or partially unsaturated and which may optionally be substituted by one or more C₁-C₄ alkyl groups or halo atoms; or a group of the   formula SR⁵ wherein R⁵ is C₁-C₈ alkyl, C₂-C₈ alkenyl, C₂-C₈ alkynyl, C₃-C₈ cycloalkyl, C₅-C₈ cycloalkenyl, phenyl or substituted phenyl wherein the substituent is C₁-C₄ alkyl, C₁-C₄ alkoxy or halo, or a 3 to 6 membered oxygen or sulphur containing heterocyclic ring which may be saturated, or fully or partially unsaturated and which may optionally be substituted by one or more C₁-C₄ alkyl groups or halo atoms; 
R³ is hydrogen or methyl; 
and R⁴ is H or a 4′-(alpha-L-oleandrosyl)-alpha-L-oleandrosyloxy group of the formula:
      with the proviso that when R⁴ and R¹ are both H and the double bond is absent, R² is not H or CH₃, are broad spectrum antiparasitic agents having utility as anthelmintics, ectoparasiticides, insecticides and acaricides.
Patent EP-0323074-A2 (EP)
Inventor: LENTINE ANTHONY LODOVICO
IPC: H01L31/02
Filed: 1988-12-13
Abstract: A tri-state optical device 400 is disclosed having photodiodes 401 and 402 with respective quantum-wells 403 and 404 in the intrinsic regions. The photodiodes are connected in series with a bipolar switch 406 and a source of electrical potential 405 for emitting a pair of optical output beams having various combinations of power levels depending on the state of the bipolar switch and the ratio of two optical control beams incident on the photodiodes. In one state of the tri-state device with the bipolar switch in a conducting state, the two output beams have complementary high and low power levels representing, for example, high and low logic levels "1" and "0". In a second state, the power levels of the two output beams are reversed, thus exhibiting complementary and symmetric output power levels. In the third state when the bipolar switch of the tri-state device in in a nonconducting state, the output beams both exhibit a low power level, and the tri-state device is nonresponsive to the power levels of the optical control beams.
Patent EP-0315562-A2 (EP)
Title: Process for the preparation of sulphur-containing hydrocarbon chains
Inventor: BORRAS GABARRO ALBERTO
IPC: C12P19/00
Filed: 1988-11-02
Abstract: PROCESS FOR THE PREPARATION OF SULPHUR-CONTAINING HYDROCARBON CHAINS, which consists in producing a fer­mentative action of two types of bacteria, lactic bacteria and bacteria of the genus Desulfovibrio, in a medium of soluble carbohydrates, to which culture medium sulphur is added in the form of salts or as elemental sulphur, the fermentation process being stopped at the point at which the proportion of sulphur-containing carbohydrate reaches its maximum, by means of alkalinization of the medium and subjecting the latter to a thermal shock at between 80 and 90°C, the medium finally being acidified or neutralized. 
     As a variant, sulphur is bound directly to carbo­hydrate molecules with a reaction time inversely propor­tional to the working pressures and temperatures.
Patent EP-0326912-A2 (EP)
Inventor: TAKAHASHI NOBUYUKI R D LAB III
IPC: C22C38/02
Filed: 1989-01-24
Abstract: Disclosed is a process for the preparation of a grain oriented silicon steel sheet having a high flux density, which comprises hot-rolling a slab comprising 1.5 to 4.8% by weight of Si, 0.012 to 0.050% by weight of Al, 0.0010 to 0.0120% by weight of N, 0.0020 to 0.0150% by weight of Ti, up to 0.45% by weight of Mn and up to 0.012% by weight of at least one member selected S and Se, which satisfies the requirement 0.06 to 0.6 of Ti/N (at % ratio) and Mn/(S + Se) ≧ 4.0 (weight ratio), with the balance comprising Fe and unavoidable impurities, to cold-rolling, performing decarburization annealing, coating an annealing separator on the steel sheet surface, then performing finish annealing, and performing a nitriding treatment of the steel sheet during the period of from the point of termination of final cold rolling to the point of initiation of secondary recrystallization at the finish annealing step.
Patent EP-0329025-A2 (EP)
Inventor: PILLON LILIANNA Z
IPC: C08L13/02
Filed: 1989-02-10
Abstract: It is known to crosslink polymers containing carboxylic acid groups using reactive resins or agents. Usually such systems contain or generate formaldehyde. It is now proposed to crosslink latices of low gel polymers containing carboxylic acid groups with lower alkyl esters of non terminal expoxides of long chain unsaturated fats or oils. Such epoxide esters have a low solubility in water and thus a good pot life yet react when heated at temperatures of less than 150°C in less than 30 minutes.
Patent EP-0336309-A2 (EP)
Inventor: WELCH HENRY HUGH
IPC: G01N35/02
Filed: 1989-03-31
Abstract: A selective or sequential access analyzer for clinico-chemical analyses and for immunological tests, which includes a central microprocessor, a diluting device (7) connected to a revolving sampling system (13) or assembly and provided with a sampling probe (12)= a fixed reagent-supporting tray (14) concentrically external with respect to said sampling assembly= a first revolving sample bearing plate (17) in such a position as to be within the reach or of said sampling probe= a second revolving plate, independent of the first one, and concentrically external to the same provided with segments (19) bearing reaction test-tubes (20) and placed in such a way as to be within the reach of said sampling probe= an aspiration system (21) bearing a probe (23) is provided diametrically opposite to said sampling assembly with respect to said two concentric plates= and a reading photometer (25) connected to said aspiration probe through a tube= said analyzer also includes six microprocessors operatively interconnected to each other and to the central microprocessor, respectively, for the diluting device, for the sampling assembly, the first revolving plate, the second revolving plate, the aspiration probe and the reading photometer while the motion of said diluting device, of the sampling assembly, of the first and the second revolving plates, of the aspiration probe and the reading photometer is obtained through stepper motors controlled by the individual microprocessors for each of these elements.
Patent EP-0349719-A2 (EP)
Inventor: DORING RALF
IPC: E05B63/12
Filed: 1989-04-17
Abstract: The invention relates to a wing (3) designed in the form of a door or a window with a locking device (8) which is arranged in the door rebate formed between the frame (2) and wing (3) and which can be operated by means of an actuating handle (5) located on the wing, and, to increase the degree of security, proposes that there be arranged on the frame (2) in front of the narrow side of the reveal (4) of the wing (3) a locking slide (6) which is shiftable in the longitudinal direction of the narrow side and which, in the locking state, engages into a counterlocking part (7) located in front of the narrow side of the reveal (4). <IMAGE>
Patent EP-0339574-A2 (EP)
Inventor: RHODES THOMAS R
IPC: E01B19/00
Filed: 1989-04-25
Abstract: A system for use with a rail for carrying a moving conveyance, the rail (10) having a web portion (12), a base portion (14) and an increased width top portion, (16)  the system serving to provide means to heat the rail top portion to decrease the accumulation of snow and ice thereon, including studs (24,26) secured to the rail web portion, such as by spot welding, at spaced intervals along the length of the rail, a series of elongated carrier members (28) each defined in cross-section normal the length thereof by an upper trough forming portion (30) and a lower clamping portion (32), the clamping portion having openings spaced along the length thereof in register with and arranged to receive the studs affixed to the rail web portion, a heating cable (38) received in the carrier member's trough portion and a nut (44) on each stud to retain the trough forming portion and thereby the heating cable in close proximity to the top rail portion whereby heat supplied by the cable is readily transmitted to the rail top portion.
Patent EP-0341541-A2 (EP)
Title: Urethangruppen aufweisende Azulenquadratsäurefarbstoffe, deren Vorprodukte sowie optisches Aufzeichnungsmedium
Inventor: SCHROTT WOLFGANG DR
IPC: G11B7/24
Filed: 1989-04-29
Abstract: Azulenquadratsäurefarbstoffe der Formel <IMAGE> in der L      gegebenenfalls substituiertes C1-C12-Alkylen, R¹      C1-C20-Alkyl, C5-C7-Cycloalkyl oder gegebenenfalls substituiertes Phenyl und R², R³, R<4> und R<5>      unabhängig voneinander Wasserstoff oder gegebenenfalls substituiertes C1-C12-Alkyl bedeuten, mit der Maßgabe, daß wenn R<5> Wasserstoff bedeutet, an einem oder beiden Azulenringen die Ringpositionen der Substituenten CH2-L-O-CO-NHR¹ und R<4> innerhalb eines Azulenrings auch gegeneinander vertauscht sein können, deren Vorprodukte auf Basis Urethangruppen aufweisender Azulenderivate sowie ein optisches Aufzeichnungsmedium, enthaltend die neuen Farbstoffe.
Patent EP-0344754-A2 (EP)
Inventor: IKUSHIMA YOSHIYUKI
IPC: G11B5/027
Filed: 1989-05-31
Abstract: A recording head arrangement employed in a video signal recording and/or reproducing device in which a video tape is helically wound on a drum carrying recording heads for recording and/or reproducing video signal which is so divided for representing upper and lower half images on a screen. The recording head arrangement includes first and second heads (3, 4) mounted on the drum adjacent each other. The first and second heads (3, 4) have the same azimuth angle which is inclined in a first direction with respect to a direction perpendicular to the head advancing direction. Also provided are third and fourth heads (5, 6) mounted on the drum 180 degrees spaced from the first and second heads (3, 4), respsectively. The third and fourth heads (5, 6) have the same azimuth angle which is inclined in a second direction, opposite to the first direction, with respect to the direction perpendicular to the head advancing direction. Thus, the first and second heads (3, 4) are scanned to form first and second tracks spaced approximately one track width for recording and/or reproducing the first half image, and the third and fourth heads (5, 6) are scanning to form third and fourth tracks spaced approximately one track width and in an interlaced manner with the first and second tracks for recording and/or reproducing the second half image.
Patent EP-0345776-A2 (EP)
Inventor: MCCAPRA FRANK
IPC: C07H21/00
Filed: 1989-06-08
Abstract: Specific binding assays are disclosed which utilize a sensitizer as a label. Such sensitizers include any moiety which, when stimulated by "excitation" with radiation of one or more wavelengths or other chemical or physical stimulus (e.g., electron transfer, electrolysis, electroluminescence or energy transfer), will achieve an excited state which (a) upon interaction with molecular oxygen will produce singlet molecular oxygen, or (b) upon interaction with a leucodye will assume a reduced form which can then be returned to its original unexcited state by interaction with molecular oxygen resulting in the production of hydrogen peroxide. Either interaction with the excited sensitizer will, with the addition of other reagents, produce a detectable signal.
Patent EP-0371280-A2 (EP)
Inventor: BEISEMANN GERD DR
IPC: B21D1/02
Filed: 1989-11-04
Abstract: During the straightening operation, vertical forces, inter alia, are known to occur at the straightening rolls of the straightening machine, the size of which forces depends on the properties of the material to be straightened, the dimensions of the straightening machine and the selected screw-down movements of the straightening rolls. These forces cause elastic deformation of the straightening machine, in particular of the rolls, the bearings and the frame, which adversely affect the straightening result for the material to be straightened. In order to avoid this, therefore, suitable measures must be used to keep the dependency of the straightening result in roll straightening machines free of fluctuations and deviations in the properties of the material to be straightened. This is achieved according to the invention by every straightening force which acts perpendicularly on the rotational axes of the straightening rolls and/or the roll bearings and/or on the frame of the straightening machine being measured independently and by the straightening rolls being automatically readjusted as a function of the measured values in the area of the varying pressure forces occurring.
Patent EP-0379709-A2 (EP)
Inventor: HSU YARSUN
IPC: G06F13/16
Filed: 1989-12-21
Abstract: A combining switch 10 includes a two input multiplexer 12 which receives I and J inputs from data processors and directs one of the incoming messages, if there are no contentions or congestions at a switch output port 14 and a Queue FIFO 16 is empty, directly to the output port 14 for transmission to one of a plurality of memory modules. If the output port 14 is busy and the Queue 16 is empty the incoming message is routed to the Queue FIFO 16 for storage. If the Queue FIFO 16 is not empty the incoming message is first compared by a comparator 20 to all existing messages stored in the Queue FIFO 16 to determine if the incoming message is destined for a memory address which already has a queued message. If no match is determined by comparator 20 the incoming message is routed to the Queue FIFO 16 for storage. If comparator 20 determines that the memory address and operation type of the incoming message matches that of a message already stored in the Queue FIFO 16 both the incoming message and the queued message are applied to a message combining ALU 26. The ALU 26 generates a combined message which is stored at the same Queue 16 location as the queued message which generated a comparison match with the incoming message.
Patent EP-0381857-A2 (EP)
Inventor: DITTMAR HARRI
IPC: C08K7/14
Filed: 1989-12-27
Abstract: In the composite materials, a polypropylene having a high isotactic content, low molecular weight and narrow molecular weight distribution and containing grafted-on carboxyl groups is combined with a glass mat whose fibres are provided with an organosilane size (sizing agent). The composite material has high strength and rigidity and is suitable for automotive parts, for example for seat shells.