baber/WOPTO huggingface dataset:
Patent EP-0417825-A2 (EP)
Inventor: NEWMAN CHRISTOPHER PAUL
IPC: C07C29/00
Filed: 1990-08-21
Abstract: The invention relates to a process for the conversion of 8-hydroxymenthenes into 8-hydroxycymenes by treating the 8-hydroxymenthenes in the vapour phase with a dehydrogenation catalyst, e.g. palladium. The process is preferably carried out at 80-150°C. The hydroxymenthene vapour is preferably passed through the catalyst system at a pressure below 8kPa and/or with the aid of an inert gas or vapour. Oxygen may be present as a hydrogen acceptor. The process is particularly suitable for converting 8-hydroxy-p-menth-1-ene into 8-hydroxy-p-­cymene. The reaction products are of value as intermediates in the preparation of fragrance chemicals.
Patent EP-0391589-A2 (EP)
Inventor: ZIEMELIS MARIS JAZEPS
IPC: C08F265/04
Filed: 1990-03-27
Abstract: A method for altering a macroporous cross-linked hydrophobic copolymeric lattice produced by precipitation polymerization in a solvent of at least one monounsaturated ester monomer and at least one polyunsaturated ester monomer soluble therein, in order to render the hydrophobic copolymeric lattice hydrophilic. The method involves saponifying the hydrophobic copolymeric lattice by reacting the surface of the hydrophobic copolymeric lattice with an aqueous alkali. The surface can also be rendered hydrophilic by polymerizing an acrylate monomer onto the lattice in order to form a surface containing carboxylic acid sites. The carboxylic acid sites formed on the surface of the lattice are converted to carboxylate anions.
Patent EP-0418070-A2 (EP)
Inventor: FUJI HIROSHI
IPC: G11B20/12
Filed: 1990-09-12
Abstract: An information recording and reproducing device having an automatic gain control device wherein its amplification degree is adjusted according to an AGC voltage varying with an amplitude of a reproduced signal. The automatic gain control device has a holding circuit which holds the AGC voltage in each of recording and erasing operations, and also holds the AGC voltage in reproducing an un-recorded area of information. The AGC voltage is also used for determining an optimum recording condition for a recording medium. Instead of the holding circuit, by installing a limiter circuit for limiting an amplitude of a reproduced signal, and by the use of a transient response of the reproduced signal due to an ac coupling situated before the limiter circuit, an appropriate amplification degree can also be obtained in the automatic gain control device. Further, the limiter circuit which is disposed at a stage before a reproduction circuit and also before a capacitor having the ac coupling, may restrain influence of the transient response of the ac coupling given on the reproduced signal, thereby making it possible to reproduce a signal with small amplitude immediately after recording or erasing operation.
Patent EP-0421738-A2 (EP)
Inventor: WISE RODNEY MAHLON
IPC: C11D7/60
Filed: 1990-10-02
Abstract: Liquid cleaning compositions displaying enhanced physical stability in the presence of bleach are provided, comprising a chlorine bleach ingredient, cross-linked polycarboxylate polymer, a rheology stabilizing agent, and a buffering agent to maintain the pH of the composition above about 10. Preferred liquid automatic dishwashing detergent compositions containing builder and optional surfactant and metalate, and displaying shear thinning behavior, are disclosed.
Patent EP-0432943-A2 (EP)
Inventor: SPERANZA GEORGE PHILLIP SR
IPC: C08G18/60
Filed: 1990-11-29
Abstract: Amine-terminated polyamides can be obtained by reacting an acid component which is an aliphatic dicarboxylic acid having 6 to 36 carbon atoms, an aromatic dicarboxylic acid having 8 to 16 carbon atoms, or an anhydride or C₁ to C₄ alkyl ester thereof, with an amine component which comprises both a first higher molecular weight polyoxypropylene diamine having an average molecular weight of 1,500 to 6,000 and a second lower molecular weight polyoxypropylene diamine having an average molecular weight of 200 to 700, said first and second polyoxypropylene diamines each having the formula:
       
 wherein n for the first polyoxypropylene diamine is 25 to 100, and n for the second polyoxypropylene diamine is 3 to 11. The first and second polyoxypropylene diamines are reacted simultaneously or sequentially with the dicarboxylic acid at a temperature of 150 to 280°C, and a pressure of 0.1 to 20 atmospheres (0.01 to 2MPa) for a reaction time of 2 to 5 hours in a molar ratio of 1.05 to 1.5 moles of total polyoxypropylene diamine per mole of dicarboxylic acid, the first and second polyoxypropylene diamines being used in a ratio of 0.25 to 3 moles of first higher molecular weight polyoxypropylene diamine per mole of second lower molecular weight polyoxypropylene diamine, whereby to form a liquid amine-terminated polyamide addition product having an average molecular weight of 3,000 to 10,000. These products can be used, for example, in the preparation of adhesives, elastomers, polyamide-polyurea foams, polyepoxides or polyimides.
Patent EP-0395585-A2 (EP)
Inventor: TAKI JUNJI C O OSAKA BRANCH
IPC: B29C51/16
Filed: 1990-04-19
Abstract: The invention relates to a method of manufacturing a synthetic resin molded article, such as a container having a label affixed to the outer periphery thereof, and an apparatus for use in carrying out the method. Hitherto, it has not been easy to mold a container and simultaneously affix a label to its outer periphery integrally therewith and often it has been practically impossible to accurately and neatly such operation depending upon the shape and position of the label. The invention is intended to solve the foregoing problems with the prior art by preforming a label inserted in a molding die to the desired size and shape by using heat shrinking means and not by mechanically bending the label or otherwise for being shaped to the size and configuration conforming to the interior of the die. The label is of a heat shrinkable material and is preformed so as to conform to the inner configuration of the molding die and to serve for the reinforcement of the container. A labelling preformer apparatus comprising a preformer die and a lebel heating device is employed for this purpose. Label preforming and labeled container manufacturing may be carried out continuously by employing a conveyor.
Patent EP-0440045-A2 (EP)
Inventor: KAULE WITTICH
IPC: G07D7/20
Filed: 1991-01-17
Abstract: Data carrier (1), such as security paper or the like, having an optically variable element (5,6), especially a hologram, affixed to the surface, and an additional printing image (2) applied especially by steam intaglio printing, characterised in that the surface of the data carrier (15, 16, 20, 21) is made smoother in the region of the optically variable element than in the remaining area. 
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Patent EP-0471138-A2 (EP)
Inventor: WIENAND KARLHEINZ DR
IPC: G01K7/18
Filed: 1991-02-19
Abstract: To produce an electrical measuring resistor having a predetermined temperature coefficient for a resistance thermometer, a substrate made of aluminium oxide ceramic is provided with a thin platinum film, to which a layer composed of a preparation which contains platinum resinate and rhodium sulphoresinate and whose rhodium content governs the desired temperature coefficient is then applied by screen printing. After drying and baking said screen-printed layer, the substrate coated in this way is subjected to heat treatment at a temperature in the range from 1000 to 1400 DEG C until the rhodium is uniformly dispersed in the previous platinum resistance layer or the resistance layer being formed.
Patent EP-0453747-A2 (EP)
Inventor: NIEDERWIESER ANTON
IPC: B27B31/06
Filed: 1991-03-09
Abstract: The invention relates to a method of cutting tubes 1, in particular concrete tubes, preferably having a large clear diameter at a cutting angle relative to the tube axis which can be freely selected at least in the range between 0 DEG  and 45 DEG . In this method, use is made of a cutting tool whose effective cutting depth is at least 1.5 times the wall thickness of the tube. The tube (1) is first clamped axially and in its rotational position. The cutting plane (3) of the cutting tool (9) is then set to the desired cutting angle (4) with respect to the tube axis (2) and the cutting tool (9) is subsequently advanced in the cutting plane (3) towards the tube (1). The cutting tool is then guided once or more than once around the tube (1) on a circular or elliptical path (5), concentric to the tube axis (2), in the cutting plane (3) through a path angle (6) of at least 180 DEG . Subsequently, after severing the tube wall on, radially, one tube half, the tube (1) is turned axially through 180 DEG  and the cutting plane (3) of the cutting tool (9) is set at the cutting angle (7) of the same value but opposite direction of rotation. The new cutting plane (3) forms the mirror image of the first cutting plane (3) with respect to the area perpendicular to the tube axis and defined by the point of intersection of the tube axis and the cutting plane (3). Finally, the second tube half is severed by corresponding guidance of the cutting tool (9) once or more than once around the tube (1). <IMAGE>
Patent EP-0453959-A2 (EP)
Inventor: FURUYAMA TOHRU C O INTELLECTUA
IPC: G11C11/405
Filed: 1991-04-18
Abstract: A semiconductor memory cell of the present invention comprises a cascade gate including a plurality of cascade-connected MOS transistors (Q1 to Q4) and having one end connected to a read/write node (N1), and a plurality of capacitors (C1 to C4) for information storage connected at one end to said MOS transistors (Q1 to Q4), respectively, at the end remote from said node (N1).
Patent EP-0460548-A2 (EP)
Inventor: KOHM THOMAS S
IPC: C23C18/16
Filed: 1991-05-31
Abstract: The invention relates to a polymeric base material which is catalytic for metal deposition. The base material comprises a first catalyst comprising a particulate silicate filler dispersed in the polymeric base material and an aromatic moiety having a hydroxyl substituent dissolved in or attached to the polymers of the polymeric base material. The polymeric base material optionally includes a second catalyst for metal deposition selected from the group of noble metals and noble metal compounds. In one aspect, the base material is a laminate comprised of glass cloth prepregs. The impregnating varnish comprises an epoxy resin, a silicate filler, and a curing agent for the epoxy resin, the curing agent being selected from the group consisting of phenolic resins and aromatic compounds having at least one hydroxyl group on the aromatic ring and mixtures of such curing agents. 
In yet another aspect, the invention comprises printed wiring boards having plated-through holes produced on the above base materials. The walls of the plated-through holes are plated with a copper deposit in which the sum of the thermal expansion and the strain at the elastic limit is approximately the same as the thermal expansion of the thickness of the base material.
Patent EP-0488264-A2 (EP)
Inventor: KATSURA TOSHIHIKO
IPC: H01L21/3205
Filed: 1991-11-28
Abstract: To improve electromigration resistance and stress migration resistance, when a film is formed by depositing Al or Al alloy on a semiconductor substrate (11), the film (13, 14) is formed stepwise by stepwise changing the heating temperature of the semiconductor substrate at at least two stages.
Patent EP-0492213-A2 (EP)
Inventor: STROHMEYER WILLI
IPC: G03B21/132
Filed: 1991-12-06
Abstract: The invention relates to an overhead projector (1) whose column (3) supporting a projection head (2) is arranged on an equipment body (4) which supports a transilluminated working surface (8) beneath which an illuminating device (6) is arranged, the column (3) supporting the projection head (2) being constructed as a telescopic column, which is formed from segments (9) that can be displaced in one another, and can be essentially sunk into the equipment body (4). Arranged in the column (3) in this case is at least one compression spring (10, 11) which has a spring power directed upwards and is directed against the dead weight of the column (3) and the weight of the projection head (2), and arranged in addition is a fixing element (16) for locking the column (3). The solution according to the invention has rendered it possible for the column (3) of the overhead projector (1) to be pushed into the equipment body when not in use. <IMAGE>
Patent EP-0450910-A2 (EP)
Inventor: PLAGENS MARK R
IPC: G01D3/036
Filed: 1991-04-02
Abstract: A resistor formed in the same epitaxial layer of semiconductor material in which a Hall element (10) is formed is used to provide a temperature dependent voltage source which is inversely proportional to the resistance of a temperature sensitive load resistor (Rl₁, RL₂) on the Hall element output. A current mirror circuit is used to apply a current proportional to the current through the epitaxial layer resistor to the load resistor so that the voltage across through the load resistor varies in a direct relationship with the sensitivity of the Hall element.
Patent EP-0461915-A2 (EP)
Inventor: GREEN MARTIN REN
IPC: G05D3/12
Filed: 1991-06-14
Abstract: Disclosed is a method for performing a seek operation in a disk drive using current in the saturation mode to accelerate and decelerate the actuator arm. In a first embodiment, several measurements are made during the acceleration portion of the seek to estimate the deceleratlon available in saturation mode. In a second embodiment, the point at which the current is switched from acceleration current to deceleration current is adjusted based upon the position where the actuator arm comes within a desired amount of the velocity of a velocity profile assuming worst case conditions.
Patent EP-0469873-A2 (EP)
Inventor: GRITTER DAVID JAMES
IPC: H02P23/00
Filed: 1991-07-30
Abstract: The inverter includes a low voltage microcontroller referenced to ground potential and a waveform generator coupled to the microcontroller through a serial data link including optical isolation devices. The waveform generator floats at the negative bus potential of the DC source for the inverter. The waveform generator produces switching signals for the inverter under control of the microcomputer. The waveform generator, serial communications circuitry and other support circuits are all part of a single application specific integrated circuit. Registers store control parameters from the microcontroller, and counters, a look up table and a state machine derive pulse width modulated switching commands to achieve motor control for a 60° sector of motor field rotation and repeat the derivation of similar switching commands for each subsequent sector. A pulse director applies the pulses to the correct motor phases for a given sector.
Patent EP-0473358-A2 (EP)
Inventor: ALLGEIER DAVID MICHAEL JOSEPH
IPC: G06Q30/04
Filed: 1991-08-21
Abstract: A method and system are disclosed for generating a completed payment document (117) ready for signature in image form and enabling signature in image form, storing the image and providing a printed copy of the document including the signature. A write input device (20) which displays the image and enables the entry of a signature includes a transparent interactive digitizing element (46) with writing stylus (26), a display module (48) positioned beneath the digitizing element (46) and visible therethrough, and optionally a magnetic stripe reader (32) for providing document-related information for the display. The device is embodied in a system which also includes a point of sale terminal (62), a printer (22) for printing records of transactions processed by the system and a controller (64) operatively coupled to other elements of the system.
Patent EP-0473463-A2 (EP)
Inventor: FORT EDWARD SAGAR
IPC: F16K31/60
Filed: 1991-09-02
Abstract: A handle assembly for operating a valve of the type having a valve body and a pivotally mounted actuating spindle (22) extending from the valve body has a mounting means (12) to secure the assembly to the spindle (22), a handle portion (14) connected to the mounting means and a pivotally mounted locking member (28). The locking member is pivotable, either by camming surfaces on the handle portion and the locking member or by a key, between a first locked position in which it engages with a portion of the valve body, and a second, unlocked position in which it is free from the valve body and enables the valve spindle to be rotated by the handle portion. 
     The locking member (28) is provided with a number of apertures which can be aligned with corresponding apertures in the mounting means (12) and the handle portion (14) when the locking member is in the locked position. The apertures are shaped to receive tamper-sensitive tape or wire or the shackle of a padlock, to indicate or prevent unauthorised use of the valve.
Patent EP-0474471-A2 (EP)
Inventor: JITARU IONEL
IPC: H02M3/335
Filed: 1991-09-04
Abstract: A single ended forward DC-to-DC converter is operated with a main switch in series circuit with a primary winding of the isolation transformer and an auxiliary switch for charging a reset capacitor also in circuit with said primary winding. The main switch and auxiliary switch are operated through control logic so that neither switch is On at the same time. A predetermined dead time is provided between turning OFF the auxiliary switch and turning ON the main switch to allow the output capacitance of the main switch to discharge into the secondary of the transformer. Current discharge into the secondary of the transformer during this time period is limited either by a saturable reactor in series circuit with the secondary or a selectively controlled rectifier.
Patent EP-0480633-A2 (EP)
Inventor: BRAUN EUGENE RALPH
IPC: F16H61/04
Filed: 1991-10-03
Abstract: A control (68) for controlling the input section (12) of a manually shifted compound synchronized transmission (10) of the type comprising the splitter type input section (12) connected in series with a manually shifted synchronized multi-speed main transmission section (14) is provided. The control is effective upon sensing disengagement of the master clutch (20) and nonengagement of the main transmission section (14) to cause the input section (12) to be shifted to and maintained in the not engaged (N) position thereof and thereafter to cause the input section to be shifted to the preselected ratio thereof (H or L). The control is also effective with the main transmission section in the disengaged position upon engagement of the master clutch to momentarily cause the input section to be shifted to one of the engaged ratios thereof allowing the synchronized jaw clutches of the main transmission section to be engaged in start-from-stop operations.
Patent EP-0488817-A2 (EP)
Inventor: YAMADA MITSUO
IPC: C08F299/04
Filed: 1991-11-29
Abstract: Th invention provides heterofunctional macromers of the formula :
     in which R 1  is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms R 2  is a (poly)lactone or (poly)ether chain having 1 to 50 lactone or ether repeating units ; X 1  is
     
     group;
     group; (in which R 3  is an alkylene group having 1 to 6 carbon atoms or an aromatic or alicyclic group) ; and A is a
     or
     group. 
     The invention also provides reactive polymers and copolymers derived from such macromers.
Patent EP-0465355-A2 (EP)
Inventor: TAKAHASHI TAKEHIRO
IPC: B65H3/06
Filed: 1991-07-03
Abstract: The present invention relates to a lead edge type paperboard feeding apparatus suitable for a box making machine for corrugated board sheets (1) and the like, and more particularly, provides a paperboard feeding apparatus provided with delivery rolls (4) which deliver paperboards (1) piled up between a front guide (2) and a backstop (3) are delivered successively from the lowest layer, comprising a mechanism which, when the dimension of above-mentioned paperboard (1) reaches a predetermined length and longer, above-mentioned backstop (3) is made to vary (ascend and descend or incline) automatically interlocking with the variation in length (or interlocking step-wise at a predetermined ratio), or an indexing unit (112,115) which is able to set a start timing or a stop timing of feeding selectively.
Patent EP-0504660-A2 (EP)
Inventor: BACH VOLKER DR
IPC: C09K19/20
Filed: 1992-03-05
Abstract: Liquid crystal compounds of the general formula I and II,  Z<1>-(X<1>-R<1>-Y-M)m   I  Z<2>-(X<2>-R<1>-Y-M)n   II  in which the variables have the following meanings: Z<1> = the radical of an m-hydric alcohol, an m-basic acid or of certain trivalent triazine derivatives; Z<2> = the n-valent radical of a mono- or polynuclear aromatic compound; X<1> = a chemical bond or -CO-; X<2> = -O-, -S-, -CO-O-, -O-CO-, -SO2-, -SO2-O-, -O-SO2-O-, -NR<4>-, -CO-NR<4>-, -NR<4>-O-, or -CO-N1-, where R<4> = H or C1-C8-alkyl; m, n = 3 to 6; R<1> = C2-C20 bridge having 2 to 12 bridge members which can be interrupted by -O-, -S- or -NR<4>-, these hetero units in each case being separated by at least two C atoms; Y = a chemical bond, -O-, -S-, -CO-O-, -O-CO-, -NR<4>-, -CO-NR<4>- or -NR<4>-CO; M = mesogenic group. These compounds are suitable for the production of optical and electro-optical recording media and display elements.
Patent EP-0516030-A2 (EP)
Inventor: BUEHLER FRIEDRICH SEVERIN DR R
IPC: B29C48/535
Filed: 1992-05-26
Abstract: The invention describes a process and an apparatus for the preparation of a homogeneous, thermoplastically processable, low-viscosity melt of high melt stability from chemically modified starch, plasticisers, emulsifiers and the preferred additive urea and/or urea derivative(s). The starch melt according to the invention has a melt viscosity of from 500 to 30,000 Pa.s at 160 DEG C and 234.6 N in a Göttfert melt flow viscometer and is used to produce shaped parts of all types. 
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Patent EP-0516090-A2 (EP)
Inventor: NAKANO KUNIAKI
IPC: G03G15/08
Filed: 1992-05-27
Abstract: It is a major object of the present invention to break down and level a heap-up of toner built in the hopper (3) through dropping from the cartridge when feeding toner into the hopper (3) and to prevent toner from leakage from the cartridge due to erroneous operation with a remarkably simple and cheap construction. 
     Namely, the leveling member (29) moves a plurality of number of times in line with engaging and disengaging operation of the cartridge for the hopper (3) and opening and closing operation of the cartridge in the same direction of the shutter, thereby causing a heap-up of toner built in the hopper housing of the hopper to be effectively broken down and leveled. 
     Furthermore, only when the shutter is in its closed status for the cartridge, the cartridge can be removed from the opening of the hopper (3).
Patent EP-0516159-A2 (EP)
Inventor: MEILAK JOSEPH A
IPC: G06F1/00
Filed: 1992-05-29
Abstract: A resume processing drive (202) for an advanced operating system, such as OS/2, is provided which saves data indicative of the operation conditions of the advanced operating system into system memory and then calls a previously existing resume processing routine (203) designed for a previously existing operating system, such as MS-DOS. The previously existing resume processing routine (204) performs additional processing in order to save operating condition data associated with the previously existing operating system into system memory, and then performs a controlled power off sequence and removes the power supplied to all elements of the computer except the computer memory. Thereafter, the existing resume processing routine (205) performs processing to restore the operating condition data associated with the previously existing operating system from system memory and then passes control to the resume processing driver of the present invention. The resume processing driver (206) restores the data indicative of the operating conditions of the advanced operating system from system memory, and control then passes to the computer program (207) which was executing before the resume processing driver was initiated.