baber/WOPTO huggingface dataset:
Patent DE-112015006305-B4 (DE)
Title: Brennkraftmaschine mit erhöhtem Kompressionsverhältnis mit mehrstufiger Verstärkung
Inventor: ZHU BIN
IPC: F02D23/02
Filed: 2015-03-13
Granted: 2021-06-10
Abstract: Brennkraftmaschine (16), die umfasst:einen Zylinderblock (20), der einen Zylinder (22) definiert;einen Zylinderkopf (23), der an den Zylinderblock (20) montiert ist;einen sich hin- und her bewegenden Kolben (22-1), der innerhalb des Zylinders (22) angeordnet ist und ausgestaltet ist, um ein Gemisch aus Luft und Kraftstoff mit einem geometrischen Kompressionsverhältnis von mindestens 10:1 zu komprimieren;eine Kurbelwelle (31), die in dem Zylinderblock (20) angeordnet ist und durch ein Aufbringen einer Verbrennungskraft auf den Kolben (22-1) gedreht wird;ein Einlassventil (24), das mit dem Zylinderkopf (23) wirksam verbunden ist;ein Auslassventil (26), das mit dem Zylinderkopf (23) wirksam verbunden ist und ausgestaltet ist, um ein Entfernen von Gas (32) nach der Verbrennung aus dem Zylinder (22) zu steuern;einen Mechanismus (28), der ausgestaltet ist, um einen konstanten Spitzenhub des Einlassventils (24) über einen Drehwinkel der Kurbelwelle (31) hinweg bereitzustellen, der mindestens 5 Grad beträgt; undein mehrstufiges Verstärkungssystem (56), das einen ersten Gaskompressor, einen zweiten Gaskompressor und einen Controller (68) aufweist, der ausgestaltet ist, um einen Betrieb der ersten und zweiten Kompressoren zu regeln, um Luft (58) selektiv mit Druck zu beaufschlagen, die aus der Umgebung zur Lieferung an den Zylinder (22) empfangen wird;wobei der Mechanismus (28) eine Einlassnockenwelle (36A, 36B) mit einem Nockenbuckel (38A, 38B) zum Öffnen und Schließen des Einlassventils (24) relativ zu einer Position der Kurbelwelle (31) enthält; undwobei der Mechanismus (28) zusätzlich einen Schlepphebel (46A, 46B) mit variabler Übersetzung enthält, der zwischen dem Nockenbuckel (38A, 38B) und dem Einlassventil (24) angeordnet ist und ausgestaltet ist, um den konstanten Spitzenhub des Einlassventils (24) zu erzeugen.
Patent DE-112015007213-B4 (DE)
Title: Halbleiter-package mit durchgangsbrücken-die-verbindungen und verfahren zum herstellen eines halbleiter-package
Inventor: QIAN ZHIGUO
IPC: H01L25/07
Filed: 2015-12-22
Granted: 2021-08-19
Abstract: Halbleiter-Package (200, 320), umfassend:eine erste Aufbauschicht (102, 204) mit einer oberen Oberfläche und einer der oberen Oberfläche gegenüberliegenden unteren Oberfläche, wobei die erste Aufbauschicht (102, 204) einen Leistungskontakt (108; 206; 304) auf der oberen Oberfläche der ersten Aufbauschicht (102, 204) aufweist;eine zweite Aufbauschicht (110, 210), die über der ersten Aufbauschicht (102, 204) liegt, wobei die zweite Aufbauschicht (110, 210) einen Hohlraum definiert, der über dem Leistungskontakt (108; 206) liegt;einen Brücken-Die (118, 212, 324), der innerhalb des Hohlraums der zweiten Aufbauschicht (110, 210) angeordnet ist, wobei der Brücken-Die (118, 212, 324) eine Brücken-Die-Rückseite und eine Brücken-Die-Oberseite aufweist, wobei die Brücken-Die-Oberseite eine Mehrzahl von Brücken-Die-Oberseitenkontakten aufweist, wobei die Brücken-Die-Rückseite elektrisch mit dem Leistungskontakt (108, 206) gekoppelt ist; undeine dritte Aufbauschicht (130, 220), die über der Oberseite des Brücken-Dies (118, 212, 324) liegend und über der zweiten Aufbauschicht (110, 210) angeordnet ist, wobei die dritte Aufbauschicht (112, 220) eine Zwischenverbindungsleiterbahn aufweist (132; 224), wobei die Zwischenverbindungsleiterbahn elektrisch mit einem ersten Brücken-Die-Oberseitenkontakt (230) der Mehrzahl von Brücken-Die-Oberseitenkontakten gekoppelt ist, wobei der erste Brücken-Die-Oberseitenkontakt über einen Brücken-Die-Bulk des Brücken-Dies (118, 212, 324) elektrisch mit der Brücken-Die-Rückseite gekoppelt ist.
Patent DE-112017003644-B4 (DE)
Title: Verfahren zur Bewertung der Kohlenstoffkonzentration einer Siliciumprobe, Verfahren zur Bewertung eines Herstellungsprozesses für Siliciumwafer, Verfahren zur Herstellung von Siliciumwafern, Verfahren zur Herstellung eines Silicium-Einkristall-Ingots
Inventor: ERIGUCHI KAZUTAKA
IPC: G01N21/63
Filed: 2017-06-14
Granted: 2023-02-02
Abstract: Verfahren zur Bewertung der Kohlenstoffkonzentration einer Siliciumprobe, welches umfasst:Bildung einer Oxidschicht auf wenigstens einem Teil einer Oberfläche einer als Bewertungsziel dienenden Siliciumprobe; Bestrahlung einer Oberfläche der Oxidschicht mit einem Teilchenstrahl;Bestrahlung der Oberfläche der Oxidschicht, welche mit dem Teilchenstrahl bestrahlt wurde, mit Anregungslicht, das eine Energie aufweist, die größer ist als eine Bandlücke von Silicium;Messung der Intensität einer Photolumineszenz, emittiert von der mit dem Anregungslicht bestrahlten, als Bewertungsziel dienenden Siliciumprobe; und Bewertung der Kohlenstoffkonzentration der als Bewertungsziel dienenden Siliciumprobe auf Basis der gemessenen Intensität der Photolumineszenz, wobei die Photolumineszenz eine Bandkanten-Lumineszenz von Silicium ist.
Patent SK-283153-B6 (SK)
Title: Carton for beverage containers with strap type carrying handle
Inventor: AUCLAIR JEAN-MICHEL
IPC: B65D5/18
Filed: 1995-07-07
Abstract: A carton for beverage containers includes a series of hinged panels (12, 14, 16, 18, 20) forming a sleeve and end closure panels (58, 58a) hinged at least to one of the hinged panels for closing, at least in part, the opposite ends of the sleeve. The one panel (20) includes a handle strap (S) by which the carton can be carried. The handle strap (S) is disposed in a stowed substantially coplanar relationship with the one panel (20) when the carton subsits as an open-ended sleeve and is automatically put into a position of use when the end closure panels (58, 58a) are hinged into their closed positions so that at least a user portion (H) of the handle panel stands proud of the one panel (20).
Patent CZ-280320-B6 (CZ)
Inventor: SYKORA DALIBOR ING
IPC: F28D1/047
Filed: 1992-01-27
Abstract: Kompaktní trubkový výměník tepla je vybaven  teplosměnnou plochou, vytvořenou ze štíhlých  pravotočivých nebo levotočivých šroubovicových  teplosměnných  trubek (1), které jsou v  trubkovnicích (7) orientovány shodně nebo  střídavě ve dvou azimutech svírajících úhel  menší než 180.sup.o.n.. Přitom vnější či obrysový průměr  šroubovicových teplosměnných trubek (1) je větší  než jejich rozteč v trubkovnicích (7), pročež  dotykové či vzájemně opěrné body jsou na  šroubovicových površkách o průměru menším než je  průměr vnější či obrysový. U hybridního řešení  výměníku tepla je teplosměnná plocha vytvořena z  identických avšak mezi trubkovicemi (7)  protilehle uložených kombinovaných teplosměnných  trubek (8), jejichž poloviny konstrukční délky  jsou šroubovicové a druhé poloviny přímé.ŕ
Patent CZ-278350-B6 (CZ)
Title: Folding chair
Inventor: ROUS MILAN
IPC: A47C4/00
Filed: 1992-03-12
Abstract: The folding chair consists of a seat (4) and support (3) joined by engagement together. In the seat (4) there is a slot (6) for inserting the narrower parts of the support (3), ended by toothing (7) so that the toothing (7) sits on the seat (4), whereas the narrower part of the support (3) is smooth on one side and on the other provided in the longitudinal direction with two rows of holes (5) for inserting acupuncture needles (5a).<IMAGE>
Patent CZ-307177-B6 (CZ)
Title: A catalyst for hydroisomerization of C4-C7 alkanes, its preparation and use
Inventor: SAZAMA PETR
IPC: C07C9/16
Filed: 2017-01-09
Abstract: A method of preparing a catalyst for hydroisomerization of C4-C7 alkanes based on mordenite, a catalyst with higher activity, due to access to the reaction centres without reducing the number of acidic reaction centres, obtainable in this manner, and a method of hydroisomerization of alkanes on this catalyst. The method of preparing a catalyst for hydroisomerization of C4-C7 alkanes comprises the following steps:- fluoridation of mordenite by a water-soluble fluoride or hydrofluoric acid,- the subsequent desilication of mordenite by alkaline leaching in order to produce modified mordenite,- ion exchange of sodium atoms with protons in a solution containing Hor NHions and possible subsequent calcination in order to form the H-forms of modified mordenite,- by applying at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum to the modified mordenite in the NH- or H-form.
Patent CZ-291255-B6 (CZ)
Title: Circuit arrangement of inlet filter of railway vehicle traction drives with backup brake and positive booster
Inventor: FIRST ANTONIN ING
IPC: B60L7/22
Filed: 1999-01-27
Abstract: A series system consisting of an input inductance (3) a backup brake resistance (4) and a electronic switching element (5) is connected between a supply voltage first terminal (2) and a supply voltage second terminal (1), whereby a first diode (6) having poles arranged in forward direction for mains current is connected between the electronic switching element (5) and the backup brake resistance (4) and said diode (6) output is connected to a filter capacitor (7) the other pole of which is connected to the supply voltage second terminal (1), wherein said first diode (6) and said filter capacitor (7) common point is connected to a series system formed by a second diode (8) having poles arranged in reverse direction for the supply voltage or a switching element (12) with reverse characteristic and a recuperation resistance (9), whereby a switch (10) is connected between a common point of the input inductance (3) and the backup brake resistance (4) and a common point of the second diode (8) and the filter capacitor (7).
Patent CZ-286105-B6 (CZ)
Title: Process for preparing 2-azetidinones and intermediate for preparation thereof
Inventor: REY ALLAN W
IPC: C07H17/02
Filed: 1994-04-21
Abstract: In the present invention there are disclosed a process for preparing N-unsubstituted 2-azetidinones of the general formula I, that are usable for preparing taxol derivatives, and an intermediate of the general formula II for making the process.
Patent SK-284870-B6 (SK)
Title: Seat covers for automobiles
Inventor: UNGER ANGELIKA
IPC: B60N2/90
Filed: 1998-06-18
Abstract: The solution concerning seat covers for automobiles with side integrated automatic airbags, consist of seat back covers and seat covers so called saving covers which show on its sides, which are reversed to the vehicle doors, places determined for breaking, for side airbags situated in the seat back or in the seat, which fortress is adjusted to be in case, that such the places determined for breaking create shattering stitches which are split during the explosion of the airbags and permit to be airbags undisturbed leave from side face of the seat back or seat whereby stitch are alongside delimiting edge of the side face of the seat, which are characterized by that the length of stitch split (6, 7) during the explosion of the airbags (13, 14) and so surface fabric split (8, 9) and so from bottom end (15) of the side face (4) and cover (3) of seat back via upper end (16) of the side face (4) to the bottom end (17) of the head restraint (12) as well as from front end (18) of the side face (5) of cover seat (2) to the back end (19) this side face and covers have slots which can keep closed by Velcro (23, 24).
Patent CZ-286232-B6 (CZ)
Title: 1-Aryl-5-alkylideneiminopyrazole, process of its preparation pesticidal composition in which said pyrazole is comprised and method of fighting articulates, nematodes, flat- and roundworms and protozoa
Inventor: HUANG JAMIN
IPC: C07D231/38
Filed: 1992-04-30
Abstract: Pyrazoles of formula (I) are new. In (I), R1 = CN, NO2, halo, formyl, alkycarbonyl or cycloalkylcarbonyl; R2 = halo, alkyl, haloalkyl, alkoxy, haloalkoxy, NO2, thiocyanate, (or optd. mono- or di-alkyl substd.) sulphamoyl, or aminocarbonyl, alkoxycarbonyl or opt. substd. R9S(O)n; n = 0 to 2; R9 = alkyl, haloalkyl, cycloalkyl, halocycloalkyl, cyclo-alkyl- alkyl or halocycloalkyl alkyl; R3 = H, alkyl, alkoxy, alkylthio or di alkylamino; R4 = phenyl or 5-6 membered O,S and/or N, heteroaryl both opt. substd with -OH or a salt, -SH or a salt, halo, CN, NO2, alkyl, haloalkyl, alkoxy, -O- alkyl-O-, -O-halo alkyl-O-, haloalkoxy, alkanoyloxy, phenolic, tri-alkylsiloxy, phenyl, alkyl-S(O)n, halo alkyl-S(O)n, NR10R11, COR12, SO2R13; R10,R11 = H, alkyl, alkanoyl or haloalkanoyl; R12 = NR10R11 alkoxy, alkylthio, OH or a salt, H, alkyl or halo alkyl; R13 = NR10R11, alkoxy, alkylthio or OH or a salt; R5 = halo or alkyl; R6, R8 = H or F; R7 = H, alkyl, haloalkyl, alkoxy, haloalkoxy, CN, NO2, alkylcarbonyl, haloalkylcarbonyl, alkyl-S(O)n or halo alkyl-S(O)n; X = N or CR14; R14 = H, halo, CN, NO2, alkyl, alkylthio or alkoxy; where alkyl = 1-4C alkyl and cycloalkyl = 3-7C cycloalkyl. 17 Cpds. (I) are claimed e.g. 1-(2,6-dichloro-4-trifluoro methyl phenyl)-3-cyano-4- trifluoromethylsulphenyl-5- (4-hydroxy-3-methoxyphenyl) methylideneimino)pyrazole (Ia).
Patent CZ-280260-B6 (CZ)
Title: Device for securing a load carrier to a wagon rotary frame
Inventor: SCHLIENGER ALBERT
IPC: B61D45/00
Filed: 1992-05-26
Abstract: The cargo carrier (1), for example an interchangeable container, is secured on the turntable (2) of a railway wagon by means of swivellable holding claws (11, 11') which are articulated below the turntable. The holding claws are permanently acted on by an energy store, preferably in the form of a spring 14, and are pressed into the engagement position. This engagement position is reached as soon as the two parallel support rails (4, 4') of the turntable (2) are in the travel position parallel to the longitudinal sides of the railway wagon. <IMAGE>
Patent CZ-281840-B6 (CZ)
Inventor: AOKI YUHKO
IPC: A61K31/336
Filed: 1992-07-21
Abstract: Deriváty cyklohexanu a tetrahydropyranu obecného  vzorce I, kde znamená  X kyslík nebo -CH.sub.2.n.R.sup.1 .n.Y-alkyl, Y-aralkyl nebo Y-aryl, přičemž Y  znamená kyslík, skupinu -COHN-, -NHCO-,  -(CH=CH).sub.n.n., kde znamená n O, 1, 2 nebo 3, skupinu  vzorce -C=C-, -CH.sub.2.n.O- nebo -CH.sub.2.n.S-, R.sup.2 .n.vodík nebo hydroxyskupinu,  R.sup.3 .n.skupinu schopnou koordinace,  R.sup.4 .n.a R.sup.5 .n.na sobě nezávisle vodík, nižší alkyl,  nižší alkoxy nebo nižší alkylthio nebo R.sup.4 .n.a R.sup.5  .sup..n.spolu s přilehlým uhlíkem, popřípadě pětičlenný  nebo šestičlenný acetalový kruh,  R.sup.6 .n.vodík, nižší alkyl, nižší alkoxy nebo nižší  alkylthio, amino, nižší alkylamino nebo di-nižší  -alkylamino, R.sup.7 .n.vodík, hydroxy, nižší alkyl, nižší alkoxy  nebo nižší alkylthio, které jsou popřípadě substituovány hydroxyskupinou, acylem nebo arylem  nebo pětičlenný nebo šestičlenný heterocykl obsahující alespoň jeden atom dusíku, a popřípadě  atom kyslíku nebo síry nebo R.sup.6 .n.a ŕ
Patent CZ-280723-B6 (CZ)
Title: Electrical connection of a synchronous machine and an exciter
Inventor: PAVLAS JAROSLAV ING
IPC: H02K19/38
Filed: 1990-10-29
Abstract: The electrical connection of the outlets (8,9) running through axial holes is firmly fixed to the face sides of the shafts (1,2) coupled with the flanges (3,4) of the mechanical coupling. Each outlet (8,9) has a screwed radial conductive strip (18) terminating above the surface of the shafts (1,2) in a joining contact (5). The respective part of the attached joining contacts (5) is connected through insulating pads (14) and at least one flexible and one pressure pad (6,7) to the vertical wall of the first flange (3) of the mechanical coupling by an isolated screwing element and the pressure pad (7) is mounted so that it can slide in the respective hole of the second flange (4) of the mechanical coupling.<IMAGE>
Patent CZ-282034-B6 (CZ)
Inventor: DE FRAINE PAUL JOHN
IPC: C07D241/52
Filed: 1989-11-21
Abstract: Jsou popsány deriváty propenové kyseliny obecného vzorce I, kde R.sup.1.n. je C.sub.1-6.n.alkyl, C.sub.1-4.n.alkoxyl, zbytek -CO.sub.2.n.R.sup.3.n., PO(OR.sup.3.n.).sub.2.n. nebo S(O).sub.n.n.R.sup.3.n., kde R.sup.3.n. je C.sub.1-4.n.alkyl a n je 0, 1 nebo 2, -COR.sup.4.n., kde R.sup.4.n. je C.sub.1-4.n.alkyl nebo fenyl, fenoxyl, benzyl, fenyl(C.sub.1-4.n.)alkenyl, popřípadě substituovaný fenyl popřípadě substituovaný heteroaryl, kde heteroarylová část je 5- nebo 6-členný kruh obsahující 1 až 3 O, N nebo S heteroatomy, popřípadě nakondensovaný na benzenový kruh a jejich N-oxidy, přičemž fenylové a heteroarylové části jsou popřípadě substituovány 1 nebo 2 substituenty vybranými ze skupiny zahrnující halogeny, C.sub.1-4.n.alkyl, C.sub.1-4.n.alkoxyl, halogen (C.sub.1-4.n.)alkyl, halogen (C.sub.1-4.n.)alkoxyl, C.sub.2-4.n.alkenyloxyl, C.sub.2-4.n.alkinyloxyl, NR'R'', kde R' a R'' jsou nezávisle H nebo C.sub.1-4.n.alkyl, nitroskupina, kyanoskupina, -SO.sub.2.n.R.sup.3.n., fenyl, halogenfenyŕ
Patent CZ-305398-B6 (CZ)
Title: High-boron wear resistant steel for components and tools
Inventor: CHOTĚBORSK ROSTISLAV
IPC: C22C38/32
Filed: 2014-01-24
Abstract: In the present invention, there is disclosed a high-boron wear resistant steel for components and tools that are exposed in the working process to abrasive wear under co-action of impacts, wherein the invented steel comprises as basic components 0.20 to 0.60 percent by weight of carbon, 0.20 to 0.80 percent by weight of silicon, 0.20 to 0.80 percent by weight of boron, up to 0.42 percent by weight rare earth elements and the balance being iron.
Patent CZ-309275-B6 (CZ)
Title: A method of safely controlling a compaction machine and a compaction machine for this
Inventor: Karásek Tomáš
IPC: E01C19/28
Filed: 2021-03-03
Abstract: The method of safely controling a compaction machine comprises at least one vibrating roller (4) connected to at least one electric drive (5) of the machine movement and at least one electric drive (24) of vibration, a central control unit (1) of the machine, a battery system (3) and a control unit (2) battery system (3). The central control unit (1) of the machine commands the control unit (2) of the battery system (3). The central control unit (1) of the compaction machine is data-connected to the control unit (2) of the battery system (3), which is force connected to at least one control converter (23) of at least one electric drive (5, 19, 24) of the machine.
Patent CZ-289351-B6 (CZ)
Title: Suction jet pump
Inventor: SCHULTE FRANZ
IPC: F04F5/14
Filed: 1998-04-07
Abstract: The proposed suction jet pump has a tubular casing (1), having at one end a first air supply nipple (6), at its other end an air discharge nipple (4) and a laterally offset second air supply nipple (14). In the tubular casing (1), there are formed two flow channels (10, 24). The first flow channel (10) is the sucking jet pump and the second flow channel (24) is a bypass. The first flow channel (10) is formed by a tube (9) which is integrally formed in one piece onto an air branching piece (8). The tube (9) is in air flow connection with the second air supplying nipple (14) via a lateral orifice (13). Both the flow channels (10, 24) are flow-uncoupled from the first air supply nipple (6) in one direction by means of a non-return valve (26), the second flow channel (24) which forms the bypass being additionally closed relative to the air branching piece (8) by means of a second non-return valve (25).
Patent CZ-285665-B6 (CZ)
Inventor: REIMANN CLEMENS DR
IPC: C04B7/52
Filed: 1993-05-10
Abstract: Hydraulické pojivo pro beton nebo maltu s obsahem obvyklého cementu, jako cementu obsahujícího létavý popílek, struskového cementu a popřípadě kameniva, obsahuje jemný cement a/nebo jemný slínek. Pojivo obsahuje pro výrobu betonu nebo malty, určené pro použití stříkáním za mokra, zejména tunelového betonu, nejméně 5 hmot. % jemného cementu a pro výrobu betonu nebo malty určeného pro stříkání za sucha, zejména tunelového betonu, nejméně 5 hmot. % jemného slínku. Jemný cement a/nebo jemný slínek mají specifický povrch .>=. 12 000 cm.sup.2.n./g podle Blaina, s výhodou 15 000 až 20 000 cm.sup.2.n./g.
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Patent CZ-288148-B6 (CZ)
Title: Device for regulating the intake air temperature in an internal combustion engine
Inventor: ANDRESS HEINZ
IPC: F02M31/06
Filed: 1996-05-07
Abstract: A device is disclosed for regulating the intake air temperature in an internal combustion engine. It comprises a cold air duct (10), a warm air duct (11) and a mixed air duct (12), the mixed air duct, also called primary air duct, is provided with a control flap (18), which in one final position closes off the cold air duct (10) and in the other final position closes off the warm air duct (11) and can pivot under the action of a wax-type thermostat (14) around which the cold intake air flows. The wax-type thermostat (14) is provided with a pull rod (16) connecting it to the control flap (18). A restoring spring (26) is located on the pull rod (16). The pull rod (16) is arranged on the side opposite to the wax-type thermostat (14) in a guide (17) that is fixedly coupled with a housing (20). In addition, an excess travel spring (24) is provided to compensate for the excess travel of the wax-type thermostat (14). The control flap (18) has longitudinal guiding means (21) and the excess travel spring (24) is arranged on a sliding element (23) that is arranged in said longitudinal guiding means (21).
Patent CZ-288470-B6 (CZ)
Title: Building system
Inventor: SOUKUP VACLAV
IPC: E04B2/26
Filed: 1999-12-20
Abstract: The present invention relates to a building system, intended for external fence masonry with building blocks (1) of artificial sandstone, made of vertical walls (3, 4, 5), optionally partitions (2) with internal cavities (6), wherein the cavities (6) are filled up with concrete and reinforcing elements. At least one expansion, reversibly compressible element (7) made of foam plastic in the form of a flexible sheet is placed between all internal surfaces of the building block (1) cavities (6) and concrete. The expansion element (7) volume weight ranges from 15 to 20 kg.me-3, thermal conductivity coefficient thereof is at the most 0.05 W.em-1Ke-1 at 10 degC, soaking ability is at the most 2 percent according to CSN 645421 standard, water absorption as far as capillary absorption is concerned is 0.3 percent by volume per 24 hours and less than 4 percent by volume after 28 days according to DIN 53428 standard, diffusion resistance coefficient is at least 2000 according to DIN 52615 standard and inflammability is B2 according to CSN 730823 standard.
Patent SK-281184-B6 (SK)
Title: Substituted sulphonamides, pharmaceutical compositions based thereon and process for their preparation
Inventor: LARDY CLAUDE
IPC: C07D233/54
Filed: 1991-07-30
Abstract: Substituted sulphonamides of the formula (I) in which: R1 is an optionally substituted phenyl, naphthyl, quinolyl, thienyl, phuryl, or imidiazol group; R2 and R3 are different; one of the two denotes -Z-Ar-(CH2)q-A, the other is hydrogen or an alkyl group; R4-R6 are hydrogen or an alkyl group; Y is -(CH2)s-B-(CH2)t; and n is 0 or 1; pharmaceutical compositions based thereon; and a pr ocess for preparing sulphonamides.
Patent SK-277931-B6 (SK)
Title: 1-oxoalkylxantines and method of their preparation
Inventor: RYBAR ALFONZ
IPC: C07D473/04
Filed: 1992-12-28
Abstract: 1-Oxoalkylxantines with general formula I, in which R exp.1 means methyl, ethyl or propyl, R exp.2 means methyl, ethyl propyl, butyl or benzyl, R exp.3 means methyl, ethyl, propyl, butyl or pentyl and n is integer 1,2 or 4, can be prepared from 3,7,8-tri-alkylxantine, or in form of its alkaline salt by reaction with ketone chosen from group including chloriacetone, 6-chloro-2-hexanone, methylvinylacetone in aprotic solvent medium by high temperature. These compounds can also be prepared by dissolving of 3,7,8-trialkylxantine in alifatic alcohol or in dioxan and by reaction with methylvinylketone at temperature 30 to 70 degrees of Celsius in presence of alcoholates of alkaline metals or tetraalkylammonium hydroxide in internal gas atmosphere.
Patent SK-278227-B6 (SK)
Title: Method for preparation of triphenylarsaneoxide
Inventor: VANCOVA VLASTA
IPC: C07F9/74
Filed: 1990-12-27
Abstract: Method for preparation of triphenylarsaneoxide OAsPh3 is following: Dioxide acts at triphenylarsane AsPh3 at temperature between 50 and 75 degrees of Celsius under catalitic action of iron complexes, soluble in acetonitrile.