baber/WOPTO huggingface dataset:
Patent EP-0463423-A1 (EP)
Inventor: AOYAMA TETSUO
IPC: H01L21/768
Filed: 1991-06-06
Abstract: A surface treating agent for an aluminum line pattern substrate is disclosed, comprising an aqueous solution containing 0.01 to 15% by weight of quaternary ammonium hydroxide represented by the general formula:
       
wherein R is an alkyl group having 1 to 3 carbon atoms, or a hydroxy-substituted alkyl group having 1 to 3 carbon atoms, and R 1 , R 2  and R 3  are independently an alkyl group having 1 to 3 carbon atoms, and 0.1 to 20% by weight of sugar or sugar alcohol. This agent can inhibit the after-corrosion of aluminum effectively.
Patent EP-0484634-A1 (EP)
Inventor: PONTOGLIO ENRICO
IPC: C07C231/24
Filed: 1991-07-08
Abstract: Process for purifying, by crystallization, TAED having a titer ≧ 99.5% from a mixture containing crude TAED obtained by acetylation of DAED, wherein the purification process is performed in two different stages (1, 2), characterized in that the temperatures at which the stages are performed differ from one another (delta t) by values comprised between 55 o  and 110 o .
Patent EP-0473053-A1 (EP)
Inventor: KNAUP WOLFGANG DR
IPC: C07C31/38
Filed: 1991-08-21
Abstract: The process described allows tertiary fluorinated alcohols to be prepared which have the following formula <IMAGE> in which Rf is a perfluoroalkyl radical having 4 to 20 C atoms, R<1> is CH3 and R<2> is CH3 or C2H5, by reacting perfluoroalkylethylenes of the formula Rf-CH=CH2 where Rf has the abovementioned meaning, with excess isopropanol or excess sec.-butanol in the presence of free-radical initiators.
Patent EP-0480184-A1 (EP)
Inventor: FOERSTER WOLFGANG
IPC: F28F9/26
Filed: 1991-09-10
Abstract: A multi-plate radiator is proposed, in which the radiator plates 1, which are held at a distance, are connected by T-shaped connection pieces in the upper region and side parts 2 are held on the connection pieces for lateral covering of the intermediate space between the plates, the connection pieces of which, equipped with a collar, being accessible through an approximately coaxial bore in the side part 2. In order to bring about simple fastening of the side parts 2, which can be released with simple special tools, a plastic sleeve 4 fixed on the connection piece 13 and a flange sleeve 3 guided from outside through the bore 21 in the side part 2 are proposed, the flange sleeve being detachably fixable on the plastic sleeve 4 and at the same time, bearing with its external flange 32 on the side part 2, ensures the holding of the side part 2. <IMAGE>
Patent EP-0441421-A1 (EP)
Inventor: HEYWOOD DEREK WALLWORK
IPC: D06M15/643
Filed: 1991-01-16
Abstract: A process at present widely used for the treatment of wool to improve its resistance to shrinkage entails subjecting the wool first to an oxidation treatment (eg with chlorine) and then to treatment with an epichlorhydrin resin to supplement the shrink resistance imparted by the oxidation treatment. Resin treatment is accompanied or followed by treatment with a softening agent to soften the harsh handle associated with use of the epichlorhydrin resin. This process generates an aqueous effluent which, through its content of chlorine covalently bound to carbon, is harmful. 
     By the present invention generation of such effluent is avoided, without loss of desirable properties in the finished wool, by using as the "supplementary treatment resin" a colloidal melamine resin, with a silicone polymer as softening agent.
Patent EP-0442564-A1 (EP)
Title: Selective pyrazoline insecticides and fungicides
Inventor: DELANY JOHN JAMES C O EASTMAN
IPC: A01N47/18
Filed: 1991-02-06
Abstract: A pyrazoline having the formula:
       
 wherein: 
   R1 and R² are selected independently from a group consisting of hydrogen, substituted or unsubstituted alkyl of from 1-20 carbon atoms, and unsubstituted aryl of 6 to 20 carbons, or R¹ and R² can together comprise the atoms necessary to complete a heterocyclic group of 5 to 6 nuclear carbon and hetero atoms; 
   R³ and R⁴ are selected independently from a group consisting of hydrogen, substituted or unsubstituted alkyl of from 1-20 carbon atoms, substituted or unsubstituted aryl of 6-20 carbon atoms, alkoxy, alkylthio, cycloalkyl or heterocyclyl of 5 or 6 nuclear carbon and hetero atoms, or R³ and R⁴ together are an alkylene group of 4 to 5 carbon atoms. 
     R⁵ is selected from a group consisting of substituted or unsubstituted alkyl of 1-10 carbon atoms, alkenyl of 1-10 carbon atoms, substituted or unsubstituted aryl of 6-20 carbon atoms and cycloalkyl of 5 or 6 nuclear carbon atoms. 
     Compounds of the above formula are useful as aphicides and fungicides.
Patent EP-0473230-A1 (EP)
Inventor: VAN EIJK JAN
IPC: F16C39/06
Filed: 1991-08-22
Abstract: A device for positioning a body (5) by means of at least two electromagnets (13, 15). A position sensor (29) measures the size of an air gap (23) between one of the electromagnets (13, 15) and a guide beam (1). An output signal of the position sensor (29) is offered to a linear electronic control unit (35) which passes a control current through the electromagnets (13, 15) in dependence on a difference between the measured and a desired size of the air gap (23). An electronic root extractor (37) is connected between the control unit (35) and the two electromagnets (13, 15). An output signal of the root extractor (37) has a value equal to the square root of a control signal coming from the control unit (35). In this way it is achieved that a force exerted by the electromagnets (13, 15) on the guide beam (1) is proportional to the value of the control signal, so that a control is obtained with the linear control unit (35) in which the stiffness and bandwidth are independent of the value of the control current. 
     Since the electrical resistance losses in the electromagnets (13, 15) in such a device are low, the device is particularly suitable for use as an electromagnetic bearing in an optical lithographical device for the irradiation of semiconductor substrates, or in other precision machines.
Patent EP-0480490-A1 (EP)
Inventor: BLOM JOHANNES JACOBUS
IPC: D06F39/02
Filed: 1991-09-10
Abstract: In a process for dosing detergent compositions, which either are in the form of pastes or gels, or render such compositions when they are brought into contact with water, into a washing machine, the detergent composition is transported from a container (2) for holding the composition to the washing machine (5) via a conduit (14), whereafter said conduit (4) is purged by means of a pressurized gas, preferably steam or air.
Patent EP-0466344-A1 (EP)
Inventor: BOAZ PREMAKARAN T
IPC: C09D201/00
Filed: 1991-06-21
Abstract: A heat-retaining, thermally conductive ceramic paint composition, comprising:
     A. ceramic frit;   B. pigment;   C. hot melt material; and   D. metal powder.   
     The ceramic paint composition of this invention is applied to a glass sheet and thereafter the glass sheet is heated to cause the ceramic paint to devitrify and simultaneously fuse to the glass.
Patent EP-0467621-A1 (EP)
Inventor: CROWELL THOMAS ALAN
IPC: A61K31/18
Filed: 1991-07-15
Abstract: A compound of the formula
       
 wherein: 
   X¹ is halo; 
   X² is hydrogen, halo, or CF₃; 
   A is C₂-C₇ alkyl; C₂-C₇ alkenyl; C₄-C₈ cycloalkyl; phenyl-substituted C₁-C₄ alkyl; phenyl-substituted C₂-C₄ alkenyl; or RZR¹ where R is phenyl or C₁-C₃ alkyl, R¹ is (CH₂) n  where n is 1-3, and Z is oxygen or sulfur; 
   and pharmaceutically acceptable salts thereof, for the manufacture of a medicament for the treatment of susceptible neoplasms.
Patent EP-0484019-A1 (EP)
Inventor: ORTON MICHAEL LESLIE
IPC: C08L75/16
Filed: 1991-10-18
Abstract: A polymerisable composition comprising an ethylenically unsaturated urethane composition comprising at least one ethylenically unsaturated urethane compound having an average double bond functionality of greater than 1.0, an ethylenically unsaturated monomer which is a vehicle for, and is copolymerisable with, the unsaturated urethane composition, and a particulate methyl methacrylate/butadiene/styrene (MBS) rubber modifier. Also claimed is a polymer article prepared from said composition and a method of preparing said article.
Patent EP-0488742-A1 (EP)
Inventor: TSUBOTA NORIAKI
IPC: G03G9/087
Filed: 1991-11-28
Abstract: An electrophotographic toner for negative charging comprises a polyester resin as fixing resin and a quaternary ammonium salt having an oxyacid anion as a charge-controlling assistant in combination with a charge-controlling agent for negative charging and a colorant. The quaternary ammonium salt used as the assistant is incompatible with the fixing resin but dispersible therein. The toner provides a sharp distribution of the charge quantity so that formation of highly charged toner particles which do not contribute to development and of lowly charged toner particles which are easily scattered is effectively prevented.
Patent EP-0467756-A1 (EP)
Inventor: BOURAT JEAN
IPC: C22C38/00
Filed: 1991-07-10
Abstract: An austenitic steel which has improved strength at high temperature and a process for obtaining such a steel. The objective of the invention is to provide a steel exhibiting both suitable mechanical characteristics associated with an improved resistance to corrosive agents, and a process for obtaining the said steel and for producing mechanical components. This objective is attained with the aid of an austenitic steel characterised in that it comprises especially (% by weight):  - a carbon content lower than 0.4%,  - a chromium content higher than 22%, - one or more carbide-forming elements chosen from the group consisting of niobium, titanium, tungsten, molybdenum and vanadium, the content of which is lower than 2.5%,  - 0.40 to 0.60% of nitrogen,  - 4 to 15% of nickel,  - 2 to 10% of manganese, the balance of the combined constituents being such that the austenitic structure obtained is completely single-phase. The process according to the invention is characterised in that it consists in performing on an austenitic steel of abovementioned composition a dissolution of the constituents at a temperature of between 1000 and 1230 DEG C followed by a rapid cooling. It may additionally consist in carrying out a treatment for stabilising the structure at a temperature of between 720 and 860 DEG C for 1 to 50 hours. The present invention applies particularly to the manufacture of valves for motor vehicle engines.
Patent EP-0481838-A1 (EP)
Inventor: ANDRE MICHEL
IPC: F42B3/11
Filed: 1991-10-01
Abstract: A relatively insensitive component of explosive ammunition consisting of a casing containing a multicomposition explosive charge in which the innermost layer is a composite explosive consisting of a filled polyurethane or polyester polymeric matrix in which the filler contains more than 40 % by weight of organic nitro explosive and in which the peripheral layer is a pyrotechnic composition of the class of composite solid propellants, consisting of a filled polyurethane or polyester polymeric matrix in which the filler contains at least one inorganic oxidiser and less than 10 % by weight of organic nitro explosives. The blast and/or bubble effect produced is close to that produced by the much more sensitive charge of a single-composition composite explosive of equivalent mass. 
<??>The invention also relates to a process for obtaining a blast and/or bubble effect by release of gas in the casing of an abovementioned component of ammunition according to the invention followed by a rupture of the casing. The gas release is obtained by detonation of the innermost layer followed by a detonation-free reaction of the peripheral layer.
Patent EP-0521228-A1 (EP)
Inventor: MORVILLO GIACINTO
IPC: B29C39/02
Filed: 1991-07-05
Abstract: A method of casting polymethyl methacrylate in panels (1) with an incorporated decorative design or pattern comprises the steps of positioning a removable die (2) on a first plate of glass (3), which establishes the contours (9) of the pattern, adding a sheet of ultraflexible imprinted film (4) capable of adapting closely to the contours of the die (2), and placing inserts (5) of contrasting material on the surface of the film in positions afforded by matching recesses (10) created within the contours (9); seals (7) are then positioned around the periphery, a second plate of glass (6) is offered and secured with clips (8), whereupon methacrylic resin is poured into the void between the plates (3, 6) and polymerized. On separation of the plates, the polymethyl methacrylate panel (1) emerges with the inserts (5) fully embedded and the surface bearing the impression of the imprinted film (4).
Patent EP-0462289-A1 (EP)
Inventor: OZEKI OSAMU
IPC: G01S17/89
Filed: 1990-12-26
Abstract: Slit light pulses are projected onto an object to pick up the image of line segments on it by a TV camera, and the video signals of the image are used to obtain the three-dimensional coordinates of the object on the basis of the scanning signal of the TV camera. The image position of a line segment on the TV camera is detected based on the weighted average of intensities of the video signals. A look-up table is provided which contains the correlation between the positions of segment images and actual three-dimensional coordinates of the object. The correlation is corrected in accordance with the distortion of the TV camera lens. The output from the look-up table is stored in synchronism with the emission of the slit light pulses. The apparatus correctly detects three-dimensional coordonate values of an object whose physical position changes at high speeds or whose reflective index changes greatly.
Patent EP-0505474-A1 (EP)
Inventor: KWASS JILL ALISON
IPC: A61K9/10
Filed: 1990-12-04
Abstract: On décrit un produit liquide anti-transpiration, optiquement clair, sous forme d'une émulsion eau/huile stable ayant une viscosité inférieure à environ 1000 cps à température ambiante ou environ, qui contient une phase aqueuse dans laquelle sont présents, en solution, un ingrédient actif à action anti-transpiration, une phase huileuse représentant environ 30 pour cent du produit, et un agent de stabilisation possédant une forte stabilité dans la phase huileuse et aqueuse. L'émulsion est caractérisée par une stabilité de longue durée dans des plages de température comprises entre environ 0 et 40 °C. De préférence le produit est appliqué sous forme d'une pellicule mince à l'aide d'un distributeur du type à rouleau.
Patent EP-0515485-A1 (EP)
Inventor: CARDUCK FRANZ-JOSEF DR
IPC: C07C29/149
Filed: 1991-02-13
Abstract: L'invention concerne un procédé d'hydrogénation de graisses et d'huiles naturelles et de dérivés de matières grasses, tels que des acides gras et des esters d'acides gras, en alcools gras, dans un réacteur à lits fixes, en particulier à courant constant, de l'hydrogène étant introduit dans le circuit, en quantités stoïchiométriques, notamment de 10 à 100 excédentaires, les graisses, huiles ou dérivés de matières grasses traversant le réacteur une seule fois. En vue de minimiser la consommation spécifique en hydrogène, sans qu'il en résulte pour autant des inconvémients relatifs à la charge spécifique du réacteur, à la sélectivité du produit et au temps de séjour du catalyseur, il est proposé de faire circuler l'hydrogène à travers au moins deux réacteurs à lits fixes, montés en série (4, 10), sans que le gaz sortant des réacteurs (4) et entrant dans les réacteurs suivants (10) soit refroidi, et de façon que les graisses, huiles ou dérivés de matières grasses soient alimentés en parallèle dans les réacteurs (4, 10).
Patent EP-0519980-A1 (EP)
Title: Ameliorations apportees a la fabrication des produits tubulaires (tube sans chevauchement)
Inventor: ASKIN MICHAEL
IPC: B29C63/34
Filed: 1991-03-06
Abstract: Procédé de production d'un matériau de doublure tubulaire destiné aux processus de doublure à l'état souple consistant à donner une forme tubulaire au premier matériau absorbant en bande par le pliage en deux de celle-ci afin que ses bords soient face à face, puis à coudre à travers lesdits bords, à plier une seconde couche autour de la première de manière semblable afin que les bords des bandes se trouvent l'un en face de l'autre, et à coudre à travers lesdits bords de la seconde couche, les boucles cousues étant dans chaque cas telles que lorsque l'on donne une forme circulaire à la structure tubulaire obtenue, lesdits bords face à face se séparent et viennent s'appuyer l'un contre l'autre.
Patent EP-0596875-A1 (EP)
Inventor: OBERMEISTER LOUIS
IPC: E01C3/06
Filed: 1991-03-26
Abstract: Feuilles cellulaires élastiques à cellules fermées, semblables à la matière d'emballage alvéolée, utilisées pour remplir le vide d'un moule dans le moulage de sols en béton, comme moyen de compensation d'élévation sous des bâtiments, des routes ou autres structures ainsi que dans des situations où on utilise des géotextiles. La matière cellulaire peut être façonnée en panneaux autoportants (15), comprenant des feuilles cellulaires superposées (16), agglomérées et, de préférence, pourvues d'au moins un revêtement extérieur (18). Le panneau (15) peut être précomprimé pour augmenter sa rigidité. Ce type de panneau peut également s'utiliser comme élément structurel.
Patent EP-0483312-A1 (EP)
Title: Process for eliminating nitrates and phosphates in the biological purification of waste water.
Inventor: BAIER URS DR
IPC: C02F3/30
Filed: 1991-05-16
Abstract: The raw waste water flowing into the activation tank (11) is aerated together with the sludge from the anaerobic intermediate stage (44) and then flows together with sludge flakes into the intermediate clarifying tank (13). There is thus a sludge circuit from the intermediate clarification tank (13) via the anaerobic intermediate stage (44) and the activation tank (11) back to the intermediate clarification tank (13). This results in a continuous interchange of anaerobic and aerobic medium conditions. In the anaerobic conditions in the anaerobic intermediate stage (44) the bacteria in the sludge give off phosphates, then in the subsequent aerobic phase increased quantities of phosphate are stored. The circuit described is not adversely affected by nitrites and nitrates because there are none of these substances which interfere with biological phosphorus elimination in the intermediate clarification tank (13). The anoxic preliminary stage (15) is important in eliminating nitrogen. To this stage are fed three components, i.e. oxygen-containing waste water with sludge flakes from the activation tank (17), clarification sludge from the post-clarification tank (19) and waste water from the intermediate clarification tank (13). Because of the high sludge concentration there is a shortage of oxygen which facilitates the reduction process by optionally aerobic bacteria. This reduction process reduces nitrites and nitrates to elementary nitrogen. The water flowing out of the plant via line (20) is largely free of phosphates and ammonium salts.
Patent EP-0483367-A1 (EP)
Inventor: TORII NOBUTOSHI
IPC: B25J9/16
Filed: 1991-04-26
Abstract: An observer control system which monitors a machine system, estimates state variables and controls the machine system. The system comprises a main observer (7) for estimating the state variables relating to linear elements of the machine system (4a), a disturbance estimation observer (8) for estimating the state variables relating to non-linear elements of the machine system, and an adder (6) for removing the non-linear elements from the input of the main observer (7). The disturbance estimation observer (8) estimates the non-linear state variables and deletes the non-linear terms from the main observer (8). Since the main observer (7) can estimate the state variables by only the linear term, the estimated state variables free from the influences of the non-linear term can be obtained. When the machine system is controlled by this estimated state variable, the state feedback gain of the machine system can be increased.
Patent EP-0484489-A1 (EP)
Title: Fluid dispenser.
Inventor: DRAPER RONALD A
IPC: B29L31/00
Filed: 1991-05-09
Abstract: A method of manufacturing a dispenser for depositing a liquid material onto a print medium wherein a circular tube having a substantially uniform wall thickness is formed of moldable plastic material. The tube is placed in a mold cavity having a portion for receiving the tube in interfitting engagement and an enlarged cavity portion extending outwardly from the wall of the tube. Pressure is applied to the internal walls of the tube with the tube in plastic flow condition to expand the tube walls into the cavity forming a bulbous portion having a wall thickness less than the tube uniform wall thickness to provide a squeezable portion of greater flexibility than the remainder of the dispenser body.
Patent EP-0496850-A1 (EP)
Inventor: JACKSON JAMES E
IPC: E21B41/00
Filed: 1991-07-22
Abstract: On évacue des débris de forage en les injectant dans une formation souterraine (12) par un espace annulaire (26) formé dans un puits de forage (10). Les débris sont enlevés du fluide de forage, transportés jusqu'à un système de broyage et de cisaillement qui transforme les débris en une bouillie visqueuse par addition d'eau. Le système comprend un réservoir de réception (48, 50) et une pompe centrifuge (56, 58) servant à faire recirculer le mélange de débris et d'eau (d'eau de mer) entre la pompe et le réservoir. Un conduit d'évacuation (76) est relié à la pompe (56, 58) afin d'amener la bouillie visqueuse à une pompe d'injection (78) pour qu'elle soit injectée à haute pression dans la formation.
Patent EP-0607135-A1 (EP)
Inventor: GRIFFIN WILLIAM ANTHONY
IPC: E21B7/24
Filed: 1991-10-15
Abstract: Un ajutage à pulsations est conçu pour être introduit dans un trépan de forage tel qu'un tricône ou un trépan à corps unique, afin de produire un jet pulsé d'un fluide de forage thixotropique au cours d'opérations de forage. L'ajutage comprend un orifice d'entrée (33) communiquant avec une cavité interne (32), et un orifice de sortie (31) dont les dimensions sont choisies de façon à induire la propagation cyclique de perturbations dans une limite de cisaillement définie entre un fluide qui passe directement à travers l'ajutage et un fluide momentanément bloqué dans la cavité, ce qui produit un écoulement oscillant auto-excité dudit fluide dans l'ajutage, et un écoulement à pulsations rapides qui sort de l'ajutage.
Patent EP-0495414-A1 (EP)
Inventor: SUGAWA SHIGETOSHI
IPC: H01L31/20
Filed: 1992-01-10
Abstract: A photoelectric converting device has a photoelectric converting part which consists of a light absorbing layer of a predetermined forbidden band width Eg1 and a carrier multiplying layer, positioned in laminate structure between charge injection blocking layers. The multiplying layer is composed of a layer or plural layers with a stepback structure of the forbidden band width having a minimum width Eg2 and a maximum width Eg3 in alternate manner and showing a continuous variation therebetween in each layer. The charge injection blocking layers, light absorbing layer and carrier multiplying layer are composed of non-monocrystalline semiconductors and at least having the minimum forbidden band width Eg2 and/or the maximum forbidden band width Eg3 contain a microcrystalline structure.