baber/WOPTO huggingface dataset:
Patent CH-631101-A5 (CH)
Title: Disk fitted with a positioning device
Inventor: CHUARD MARCEL
IPC: B23Q16/04
Filed: 1979-07-17
Abstract: The revolving disk comprises a device for positioning in three angular positions with the aid of V-shaped notches and an engagement spoke interacting with the notches. In order to increase the precision of the positioning independently of the state of the notches, the disk (7) comprises two notches (8a, 8b) placed angularly on either side of the central notch (8), and each of the angular positions is defined by an adjustable pin (16, 17), which revolves with the disk (7), bearing on a shim (18, 19) fixed diametrically opposite the respective notch (8a, or 8b). In addition, the engagement spoke (15) bears on the two flanks of the V of the notch (8a or 8b). The disk is used in the field of precision mechanics. <IMAGE>
Patent CH-622595-A5 (CH)
Title: Facing on a driving drum
Inventor: CASTENHAMMAR TOMMY
IPC: B65G23/04
Filed: 1977-06-10
Abstract: The facing is secured on the driving drum (1) by means of a rail (2). The rail (2) is connected to the facing, on the one hand, and to the driving drum (1), on the other hand, by mechanical means (11), e.g. screws or rivets. This facing is extremely simple to replace and, as a result, the down time required for this purpose can be considerably reduced. It can be used with advantage in a conveyor belt drive. <IMAGE>
Patent CH-652420-A5 (CH)
Title: Composition for the deposition of metal-oxide film coatings
Inventor: MAEDA UMIO
IPC: C23C18/12
Filed: 1981-12-04
Abstract: An organic solution of a composition contains 100 parts of an indium compound, represented by the formula  In(X)l(Y)m  in which   X is a chelate ring formed from  beta -diketones, lower alkyl esters of  beta -keto acids,  alpha -hydroxy acids or alkanolamines, Y is an alkoxide formed from aliphatic alcohols, alkylene glycols or lower alkyl monoethers of alkylene glycols, and   l and m are 1 or 2, with the proviso that l+m = 3,  and from 5 to 20 parts of a tin compound, represented by the formula  Sn(X')2 or Sn(Y')m'  in which   X' is a chelate ring formed from  beta -ketones or lower alkyl esters of  beta -keto acids,   Y' is an alkoxide formed from aliphatic alcohols, and   m' is 2 or 4. Dissolved in an organic solvent, the composition is intended for the deposition of transparent, hardened and low-resistance film coatings of tin-containing indium oxide on a substrate by the dip-coating method.
Patent CH-638600-A5 (CH)
Title: Base for supporting a transportable machine
Inventor: CHUARD MARCEL
IPC: F16M13/00
Filed: 1980-12-16
Abstract: The base is composed of four wall elements (A, B1, B2, D) in the form of generally plane panels; their edges are folded inwards and comprise means for removable fixing using lugs and openings. During the assembly of the base which therefore ends up forming a hollow parallelepiped, an additional support panel may be inserted horizontally. The assembly is formed at the top by a screwed frame (9) for holding the elements in place during vibrations. The whole thing forms a rigid base which is resistant to vibrations, torsions, etc., but which can be taken apart quickly. The elements are stored in the form of a flat pack and require only very little space. The base is used as a support for transportable motorised machines, such as cutters, drills, grinders, polishers, etc. <IMAGE>
Patent CH-595789-A5 (CH)
Title: Trousers with vertical slashes in the legs
Inventor: UEBELHARDT ROGER
IPC: A41D1/06
Filed: 1976-09-08
Abstract: Trousers have >=1 vertical slashes in the legs.  The slashes which may be laced across, may extend from the knee upwards and/or downwards, but at the knee level itself the trouser leg is whole.The trousers are cooler to wear.
Patent CH-625007-A5 (CH)
Title: Prefabricated strip for road surface signs and method of manufacturing it
Inventor: EIGENMANN LUDWIG
IPC: E01F9/04
Filed: 1977-11-08
Abstract: The prefabricated strip is capable of being permanently fixed on the surface of roads and areas which are driven through by vehicular traffic. It has retroreflecting means which make it possible to return to the driver at night and at a considerable distance some of the light radiating from the headlights of his vehicle even in conditions of rain or fog. Each retroreflecting means comprises a catadioptric component (22) protected from the impact of the tyres of the vehicle by a structural support component (20) which is cuneiform and impact-resistant. The support component (20) has a widened base (24), the lower face (26) of which is flat and is firmly fixed to the upper surface of the strip. <IMAGE>
Patent CH-620668-A5 (CH)
Title: Process for the preparation of 2-aminobenzylamines
Inventor: KECK JOHANNES DR
IPC: C07C213/02
Filed: 1977-11-21
Abstract: 2-Aminobenzylamines of the accompanying formula I, in which 
 
  Hal denotes a chlorine or bromine atom; 
  R1 denotes a hydrogen, chlorine or bromine atom; 
  R2 denotes a hydrogen atom or an alkyl radical having 1 to 3 carbon atoms; and 
  R3 denotes the hydroxycyclohexyl or morpholinocarbonylmethyl radical 
 are prepared by reacting an appropriately substituted benzyl alcohol with amines of the formula 
<IMAGE>
 in the presence of an organic acid. 
<??>The compounds of the formula I are distinguished by useful pharmacological properties, in particular by secretolytic and/or cough-relieving actions. 
<IMAGE>
Patent CH-598694-A5 (CH)
Title: Annealing monocrystalline wafers to repair lattice defects
Inventor: SCHMIDT WALTER
IPC: C30B25/18
Filed: 1975-11-07
Abstract: Monocrystalline substrate wafers are heat treated before being used as carriers for epitaxial layers, where the wafer is annealed so an accumulation of atomic defects in the crystal lattice is eliminated. The substrate is e.g. a Gd-Ga garnet for the epitaxial deposition of magnetic garnets, where annealing also removes mechanical stresses in the crystals lattice, esp. by heating at 500-1500 (1000-1600) degrees C, for 2-48 hrs. followed by polishing.  The substrate wafer may be lapped prior to annealing.Used for all materials which must have very high surface, quality, e.g. Gd3Ga5O12; Sm2Ga5O12; Al2O3; MgAl2O4 to remove a deformed layer.  Deformations in the crystal lattice are removed without removing material, and without etching; the disadvantage with etching it that it results in a corrugated surface.
Patent CH-564532-A5 (CH)
Title: Anilino-nicotinic acid derivs - analgesic,anti-inflammatory agents prepd from 2-amino-3-alkylpyridines
IPC: C07D213/74
Filed: 1971-10-26
Abstract: Cpds. (I): (where R1 is COOH, or a salt, COOR' is alkyl, alkaryl, aryl or alkylamino; R2, R3 and R'3 are H, F, Cl, Br, I, CF3, nitro, OMe or lower alkyl), are prepd. by reacting, e.g. a 2-amino-3-methylpyridine with an R3R3'-substd. phenyl halide followed by oxidn. of the product to (I).
Patent CH-571521-A5 (CH)
Title: 8,9-Dimethoxy-6-acylaminophenyl-2-methyl benzo(c) (1,6)-naphthyridines - used to inhibit aggregation of blood platelets
IPC: C07D487/04
Filed: 1972-10-26
Abstract: Novel title cpds. have formula: where R = H, dichloromethyl, isopropyl, 4-17C alkyl, 3-6C cycloakyl, 2-5C alkenyl, 5 or 6 membered heterocyclic gp. contg. an O, N or S atom and joined to the carbonyl gp. via a C atom or a gp. A = a direct bond, vinylene or 1-3C alkylene; X = H, F, Cl, 1-4C alkyl or 1-4C alkoxy and Y = H, 1-4C alkyl or 1-4C alkoxy.
Patent CH-575991-A5 (CH)
Title: Unsatd cycloaliphatic ketones - by treating diols with acid dehydrating agents
IPC: C11B9/00
Filed: 1971-08-31
Abstract: Unsatd. aliphatic ketones (I) having an isolated double bond on the 1-position or two conjugated double bonds in the 1- and 3-positions as represented by the dotted lines, and R1 and R2 = H or C1-6 alkyl are made by treating a diol (II) contg. a saturated or monounsaturated 6-ring in which the double bond is represented by the dotted lines, with an acid dehydrating agent such as dilute H2SO4. Dehydration may be carried out in the pres. of metal derivatives such as mercuric acetate to increase the yield of (I). Products have organoleptic properties and are esp. useful as perfume and flavour additives, e.g. in foodstuffs.
Patent CH-609934-A5 (CH)
Title: Pulley block with rope-clamping device
Inventor: MUELLER WERNER
IPC: B63H9/10
Filed: 1975-12-16
Abstract: An eccentric dog (8) is pressed by a spring (14) against the loop preferably of the mainsheet (17, 18) of a sailing boat, which loop bears against a rope pulley (7), and clamps the sheet between it and the rope pulley (7) when there is a predominant pull on the fixed part (17). Acting on the eccentric dog (8) is a lever (11), the free end of which carries deflection pulleys (16, 23) guiding the hauling part (18) of the sheet on both sides. The pivot axis (4) and the rotary axes (5, 15, 24) of the pulleys (7, 16, 23) lie roughly parallel to one another. Pulling force and pulling direction at the hauling part (18) thus determine the position and function of the eccentric dog (8). In particular, the spring (14, 14'), with respect to the pivot axis (4) of the lever (11), the point of application on the lever (11) and the point of application on a corresponding block cheek (2) and a stop pin (25), fastened to the block cheeks (1, 2), in the pivoting area of the lever (11), is to determine a dead centre position of this lever in which the spring produces no pivoting of the lever (11) and no engagement of the eccentric dog (8) in the sheet (17, 18). In the said dead centre position, the sheet (17, 18) can also be operated when the fixed part (17) only has slight tensile stress in light winds. <IMAGE>
Patent FR-2036396-A5 (FR)
Title: Assembling aluminium-copper conductor rods - by welding
IPC: B23K35/00
Filed: 1969-03-12
Granted: 1970-12-24
Abstract: Silver solder, e.g. LAg 25 cd is applied to the joining surface of the workpiece by TlG or autogenous welding, after which a layer of AlSi 12 is applied to the silver solder by a.c. TlG welding. Assembly of the workpiece to the latter layer is by Tlg welding, using a suitable filler material (AlMg 5; Al 99.5; AlSi 12 or similar materials).
Patent FR-2057446-A5 (FR)
Title: Magnetic sepn of weakly magnetic ores and - materials using a ferromagnetic material
IPC: B03C1/029
Filed: 1969-08-20
Granted: 1971-05-21
Abstract: The ferromagnetic particles are removed from the magnetic field. They are separated from each other to remove the magnetic remance, and they are them passed back into the magnetic field. More spec., the particles are separated by liquid or gas jets, by vibration or by subjecting them to an alternating magnetic field.
Patent FR-2048256-A5 (FR)
Title: Pressed fibrous material
IPC: B27N5/00
Filed: 1969-12-05
Granted: 1971-03-19
Abstract: Flat or shaped mouldings have angular or profiled edges and a thin coating layer, conical or pyramidal depressions being placed in at least the corners of the mouldings. The mouldings are produced from resin impregnated fibrous material, such as wood chips, and are coated with a thin layer such as a decorative film. The provision of the depression at the corners enables the mouldings to be uniformly coated with the film.
Patent FR-2056690-A5 (FR)
Title: Moulded polyamide articles
IPC: B29C48/475
Filed: 1970-08-06
Granted: 1971-05-14
Abstract: The polyamide is obtained by ionic mass polymerisation. The prepolymerised polyamide is introduced into the mould during polymerisation and pressure-deformed as the latter progresses. Particular application to pipes and rods.
Patent FR-2060958-A5 (FR)
Title: Loom with continuous weft insertion
IPC: D03D41/00
Filed: 1970-09-04
Granted: 1971-06-18
Abstract: Warp threads coming from the beam are divided into two zones and held in place by a grooved cylinder. Rotating carriers on either side of the warp carry weft threads at right angles to the line of the warp and by turning inwards, counter to each other, they place alternating lines of wefts as the warp zones alternate. Subsequent rollers pack the weave into a tight fabric.
Patent FR-2118422-A5 (FR)
Title: Glass cutter - with inter changeable cutting knives
IPC: C03B33/10
Filed: 1971-02-16
Granted: 1972-07-28
Abstract: The circular cutting knife wheels have shafts which can be removed so that they can be easily changed over, and the shaft of the wheel on which they are mounted is covered. The design permits the replacement of worn knives on multi-cutting knife cutters, having a circular disc in the circumference, of which are mounted little cutting knife wheels.
Patent FR-2157591-A5 (FR)
Title: Polypentenamer improvement - by reaction with a halide
IPC: C08G61/06
Filed: 1972-10-19
Granted: 1973-06-01
Abstract: The props. of polypentenamers are improved by reaction at -10 to +200 degrees C with 0.01 - 5 wt.% of a metallic or non-metallic halide, the latter pref. being a S halide. The green strength is improved and cold flow reduced in the crude rubber. Strength of the vulcanisate is increased.
Patent FR-2160026-A5 (FR)
Title: Liq and powder container - with disposable lining
IPC: B44D3/12
Filed: 1972-11-03
Granted: 1973-06-22
Abstract: The container, suitable for liqs. and powders, has a tubular lining with thin flexible sides but a rigid base which fits that of the container. This rigidity keeps the sides parallel to the container walls and prevents inward collapse. It also enables the bottom end of vacuum extn. pipes to lie close to it. The lining is impervious to and unaffected by the contents and is e.g. polyethylene with sides 4 mils and base 50 mils thick.
Patent FR-2167547-A5 (FR)
Title: Cemented carbide metal working die - in thermal expansion compensating mounting
IPC: B21J13/02
Filed: 1972-12-21
Granted: 1973-08-24
Abstract: The hard metal nib is interference fit-mounted in a high strength steel outer ring. Between the two is disposed an inner ring consisting of a material with a greater coefft. of thermal expansion than the outer ring to compensate for any loss in pre-loading of the nib as the result of heating of the assembly. The system is used for cold heading and forging dies, where the carbide nib has to be radially pre-loaded to be able to withstand the working stresses.
Patent FR-2232216-A5 (FR)
Title: Retaining wall for reinforced concrete construction - outer faces are prefabricated and act as formwork and reinforcement
IPC: E02D29/02
Filed: 1973-05-28
Granted: 1974-12-27
Abstract: The retaining wall is constructed from two panels (A & B) which are prefabricated and contain most the reinforcing steel needed for the retaining wall. Steel stirrups (6) project from the precast panels into the in situ concrete (3). A kicker is cast on the base of the retaining wall. The panels are seated on wooden blocks (13) against the kicker and are held by a tie bar (8). There is another tie bar (2) holding the tops of the panels. Other tie bars are cast in the front panel and project through the rear one. Lifting the panels is facilitated by eyes (9).
Patent FR-2239852-A5 (FR)
Title: Safety razor for leg or arm pit hair etc - has housing with blade retained in arched position
IPC: B26B21/32
Filed: 1973-07-30
Granted: 1975-02-28
Abstract: The razor consists of a rectangular body with a bridge, having a seat for a razor blade. The body has a base, and two projecting sides, the external sides of which are formed as a handle. Base and sides act together, to hold the blade elastically in an arched position. The cutting edges of the blade face away from the razor body. The body has a flat outer surface, touching the skin during use, and the blade is concave in relation to it. A number of teeth are located next to the blade seat. Each cutting edge is located in about the centre of the plane formed by the flat external surface and the outer edge of the teeth.
Patent DD-207847-A5 (DD)
Inventor: HAMPRECHT GERHARD
IPC: C07D265/20
Filed: 1981-10-01
Abstract: 4H-3,1-Benzoxazine derivatives of the formula   <IMAGE>   where R1, R2 and Y have the meanings given in the description, and their use for controlling undesired plant growth.
Patent DD-161222-A5 (DD)
Title: Schraubenrotormaschine fuer ein beliebiges arbeitsfluid
Inventor: ASTBERG AKE
IPC: F04C18/16
Filed: 1982-02-05
Abstract: Waehrend das Ziel der Erfindung in der Erhoehung des Wirkungsgrades und einer Senkung der Herstellungskosten liegt, besteht die Aufgabe darin, den Antrieb sowohl ueber den maennlichen als auch ueber den weiblichen Rotor zu realisieren, wobei die Rippen zur Vergroesserung der Steifigkeit eine spezifische Gestaltung aufweisen sollen und ferner die Abdichtung laengs einer jeden Rotorflanke verbessert werden soll. Die Schraubenrotormaschine enthaelt kaemmend ineinandergreifende maennliche und weibliche Rotoren. Die im Verdichterbetrieb vorauseilende Flanke jeder Schraubennut des maennlichen Rotors weist einen den Teilkreis schneidenden Abschnitt auf, der einem Kreisbogen folgt, dessen Mittelpunkt innerhalb des Teilkreises liegt. Im Schnittpunkt mit dem Teilkreis schliesst die Tangente an den Kreisbogen einen Winkel zwischen 0,25 rad und 0,75 rad mit einem Radialstrahl des Rotors durch diesen Schnittpunkt ein, und der Radius des Kreisbogens bildet einen spitzen Winkel mit einer Verbindungslinie zwischen dem Mittelpunkt des Kreisbogens und dem Achszentrum des Rotors. Fig. 3
Patent DD-208617-A5 (DD)
Inventor: SCHOENAFINGER KARL
IPC: A61K31/38
Filed: 1982-02-26
Abstract: Pharmacologically-active 3-aminosydnonimines (which are optionally substituted in the N6-position) and their physiologically-acceptable acid-addition salts are compounded into standard dosage-form medicament compositions and are useful for prophylaxis for and treatment of cardiovascular-system disorders, such as high blood pressure and angina pectoris. The 3-aminosydnonimines are 3-[4-(lower alkoxy)carbonylpiperazin-1-yl]sydnonimines and 3-[N-(lower alkyl)-N-(tetrahydro-3-thienyl S,S-dioxide)]-sydnonimines.
Patent DD-220217-A5 (DD)
Title: Herbizide und wachstumregulierende mittel
Inventor: WILLMS LOTHAR
IPC: A01N47/36
Filed: 1984-07-06
Abstract: DIE ERFINDUNG BETRIFFT HERBIZIDE UND WACHSTUMSREGULIERENDE MITTEL FUER DIE ANWENDUNG IN DER LANDWIRTSCHAFT. ZIEL DER ERFINDUNG IST DIE BEREITSTELLUNG VON NEUEN MITTELN MIT STARKER HERBIZIDER WIRKUNG ZUR SELEKTIVEN BEKAEMPFUNG ZWEIBLAETTRIGER UND GRASARTIGER ANNUELLER UND PERENNIERENDER UNKRAEUTER IN GROSSKULTUREN. ERFINDUNGSGEMAESS WERDEN ALS WIRKSTOFF IN DEN NEUEN MITTELN VERBINDUNGEN DER FORMEL (I) ANGEWANDT, WORIN R TIEF 1, R TIEF 2 HOCH UNABHAENGIG VONEINANDER WASSERSTOFF, (SUBST.) ALKYL, (SUBST.) ALKOXY ODER (SUBST.) ALKYLTHIO, HALOGEN, NO TIEF 2, HOCH ALKOXYCARBONYL, (C TIEF 1 - C TIEF 4)HOCH S (O) TIEF N-, HOCH (R TIEF 9) HOCH ALKYL) NSO TIEF 2 HOCH -, ALKENYLOXY, ALKINYLOSY, -OSO TIEF 2 HOCH ALKYL, -OSO TIEF 2 HOCH CF TIEF 3 HOCH -, CONHR TIEF 3 HOCH -, CON(R TIEF 3)2, HOCH 5 TIEF 5 HOCH WASSERSTOFF, HALOGEN, MONO- ODER DIALKYLAMINO, (SUBST.) ALKYL, ALKOSY, ALKYLTHIO, ALLYLOXY ODER PROPARGYLOXY, R TIEF 6, HOCH R TIEF 7 UNABHAENGIG VONEINANDER WASSERSTOFF, (SUBST.) ALKYL ODER HALOGEN, R TIEF 8 HOCH ALKYL, ALKENYL ODER BENZYL, R TIEF 9 HOCH (SUBST.) ALKYL ODER ALKOXY, M DIE ZAHL 1 BIS 3, N DIE ZAHL 0 BIS 2, X CH ODER N BEDEUTEN, SOWIE DEREN SALZE. FORMEL (I).
Patent DD-232961-A5 (DD)
Title: Roots-kopressor zum komprimieren von gasfoermigen foerdermedium
Inventor: NISSEN HANS
IPC: F04C29/00
Filed: 1985-04-12
Abstract: Das Ziel der Erfindung besteht darin, den konstruktiven Aufbau derartiger Kompressoren zu vereinfachen. Der Erfindung liegt die Aufgabe zugrunde, eine neue Loesung zur Veraenderung der zeitlichen Oeffnungsflaechenfunktion anzugeben. Bei einem Roots-Kompressor zum Komprimieren von gasfoermigem Foerdermedium, bei dem abwechseln in die jeweils von dem jeweiligen Roots-Kolben und den zugeordneten Foerderraumwaenden des Zylinders und den stirnseitigen Seitenplatten gebildeten Foerderkammern nach dem Abschliessen gegenueber der Saugseite Foerdermedium aus der Druckseite ueber Ausnehmungen in den Zylinderflaechen eingespeist wird, werden die Grundflaechen und die Seitenflaechen der Ausnehmungen zumindest teilweise in einen Einsatz eingearbeitet, der in einer Aussparung in der Zylinderwand loesbar befestigt ist. Es ist moeglich, die ein- oder mehrteiligen Einsaetze fest oder in Grenzen bewegbar in den Aussparungen zu befestigen. Im Falle einer festen Anordnung der Einsaetze in den Aussparungen wird eine absolut betriebssichere Ausgestaltung erreicht. Werden die Einsaetze in den Aussparungen in Grenzen beweglich befestigt, ist eine Feinanpassung moeglich. Fig. 1
Patent DD-242556-A5 (DD)
Title: Herbizide zusammensetzungen
Inventor: NIELSEN DONALD R
IPC: C07D413/12
Filed: 1986-01-06
Abstract: Die Erfindung bezieht sich auf eine hochwirksame herbizide Zusammensetzung auf der Grundlage aktiv substituierter Benzisoxazol- oder Benzisothiazol-Verbindungen. Die Erfindung wird vorteilhaft zur Vorauflauf- und Nachauflaufbekaempfung eine Vielzahl von breitblaettrigen oder grasartigen Unkraeutern eingesetzt.
Patent DD-299980-A5 (DD)
Title: Elektrischer temperatur-festkoerpersensor und verfahren zur herstellung eines elektrischen temperatur-festkoerpersensors
Inventor: MANUKOW SARKIS
IPC: H01L35/00
Filed: 1988-07-19
Abstract: Die Erfindung betrifft einen elektrischen Festkoerper-Temperatursensor auf Metalloxidbasis, wobei auf einem polymeren Traeger eine thermisch erzeugte Funktionsschicht angeordnet ist, die aus verschiedenen FexOy-Phasen besteht. Das dazugehoerige Herstellungsverfahren ist dadurch charakterisiert, dasz das Oxidmaterial nach Erhitzung ein- oder beidseitig mit fluessigem Polymer bedeckt, nachfolgend bis zu einem gewissen Umformungsgrad verformt, anschlieszend getempert wird und schlieszlich eine Trennung des Verbundes erfolgt.{Sensor; Festkoerper; Temperatur; Temperatursensor; Funktionsschicht; Eisenoxid; Temperung; Verformung}
Patent DD-282648-A5 (DD)
Title: Antrieb fuer eine gegen zwei festanschlaege positionierbare handhabungseinrichtung
Inventor: SAUERMANN WERNER
IPC: B23Q5/00
Filed: 1988-08-26
Abstract: Die Erfindung betrifft einen Antrieb fuer eine gegen Festanschlaege positionierbare Handhabungseinrichtung, insbesondere fuer eine gegen zwei Festanschlaege positionierbare Schwenkachse eines Portalmanipulators, mit den Festanschlaegen zugeordneten Stoszdaempfern und Endschaltern sowie einer Rutschkupplung. Um eine spielfreie und weitgehend masseunabhaengige Positionierung der Schwenkachse bei geringem Platzbedarf und kostenguenstiger Herstellung des Antriebes zu gewaehrleisten, sind die Festanschlaege erfindungsgemaesz jeweils vor den Endpunkten der Bewegung zwischen einer aktiven, die Schwenkachse beeinflussenden und einer inaktiven, die Schwenkachse nicht beeinflussenden Position schaltbar angeordnet und die Stoszdaempfer sowie den Endschalter direkt in den Endpunkten der Bewegung vorgesehen, wobei die Aktivierung der Festanschlaege und die Drehrichtungsumkehr des Antriebes durch die Endschalter ausloesbar ist. Fig. 2{Antrieb; Festanschlaege, schaltbar; Handhabungseinrichtung; Schwenkachse, positionierbar; Stoszdaempfer; Endschalter; Rutschkupplung}
Patent DD-282917-A5 (DD)
Title: Verfahren zur herstellung von 17-acetyloxyprogesteron
Inventor: LANGBEIN GERHARD
IPC: C07J7/00
Filed: 1989-05-08
Abstract: Die Erfindung betrifft die Herstellung von 17-Acetyloxyprogesteron. Die Titelverbindung ist ein wichtiger Ausgangsstoff fuer Steroidhormonwirkstoffe wie Medroxyprogesteron- oder Chlormadinonacetat, die in Arzneimitteln zur Kontrazeption und als Gestagene Verwendung finden. Das Verfahren zur Herstellung von 17-Acetyloxyprogesteron ist dadurch gekennzeichnet, dasz 17-Hydroxyprogesteron durch Acylierung mit Acetanhydrid unter der Wirkung einer starken Saeure zweckmaeszigerweise unter Zusatz weiterer Loesungsmittel bis zu einem Gemisch aus 17-Acetyloxy-pregn-4-en-3,20-dion und * umgesetzt und ohne Zwischenisolierung durch Zusatz von hydrolysierenden Stoffen bzw. Stoffgemischen in die Titelverbindung umgewandelt wird.{17-Acetyloxyprogesteron; 17-Hydroxyprogesteron; Acylierung; Acetanhydrid; Stoffe, hydrolysierende; Loesungsmittel; Steroidhormonwirkstoffe}