baber/WOPTO huggingface dataset:
Patent CH-649982-A5 (CH)
Inventor: LEHKY PAVEL DR
IPC: C07C69/34
Filed: 1981-05-27
Abstract: Process for the production of 3,3-dimethylglutaric acid or its esters from dimedone. Dimedone is converted with ozone into an ozone-addition product. The latter is converted by hydrolysis into 3,3-dimethylglutaric acid or by alcoholysis into one of its esters.
Patent CH-686650-A5 (CH)
Title: L=section brick forming path for amphibious animals
Inventor: ZIEGER EGON
IPC: A01M29/30
Filed: 1992-11-16
Abstract: The vertical flange (3) protruding from the bottom one (2) is bent over at a point clear of the latter. It forms an inclined surface (4) towards the horizontal flange, and gives the brick a generally overall V-section. The lengthwise end edge of the inclined portion can be set back from that of the horizontal flange. There can be a straight extension (8) on the free edge of the inclined portion, and which runs parallel to the horizontal flange.
Patent CH-682160-A5 (CH)
Title: Travelling appts. for textile spinning machines
Inventor: LUCCA ANGELO
IPC: D01H15/00
Filed: 1989-11-16
Abstract: Travelling appts. for textile spinning machines exchanges creel packages and handles strand ends. Appts. consists of two devices. One device transfers strand packages onto creel of spinning machine. The other handles strand ends for introduction into spinning position. Package transfer device removes packages that are already on creel, thereby making room for new packages. Strand handling device grasps strand end and threads it onto machine using strand guide located on creel.  Appts. travels on rollers on top of conveyor rail and is driven by motor. Train of packages is suspended on arms and travels on rollers. It is pushed along conveyor rail by retractable arm which engages in carrier. Packages are transferred to creel rail by pusher. Pusher consists of frame and pivots on axis in guides. Motor pivots frame towards packages and then motor drives pusher towards spinning machine. Pusher uses pegs to push packages along rail onto creel rail. Strand handling device consists of robot arms and suction head and servo-motors. Package is held steady by arm.
Patent CH-634852-A5 (CH)
Title: Hydrazinium salt of di(hydrogen-beta-chloroethanephosphonic acid), its preparation, and a mixture containing this salt
Inventor: MELNIKOV NIKOLAI NIKOLAEVICH
IPC: C07F9/38
Filed: 1978-04-20
Abstract: New hydrazinium salts of di(hydrogen- beta -chloroethanephosphonic acid), of the formula <IMAGE>  in which     R represents hydrogen or ClCH2CH2-,   R' represents hydrogen or -CH3 with the proviso that both R's represent -CH3 when R represents ClCH2CH2-. These compounds are obtained by reacting 2 mol of  beta -chloroethanephosphonic acid with 1 mol of a hydrazine of the general formula <IMAGE> in which R' represents hydrogen or -CH3, or the acid N,N-dimethyl-N- beta -chloroethanehydrazinium salt of  beta -chloroethanephosphonic acid with  beta -chlorethanephosphonic acid, in an inert or aqueous medium. The new compounds can be used as plant growth regulators.
Patent CH-647166-A5 (CH)
Inventor: DEVANTHERY ANTOINE
IPC: F16N7/34
Filed: 1982-08-18
Abstract: 1. Apparatus for delivering a fluid, particularly a machining lubricant, comprising at least one nozzel (7) to which are fed coaxially the lubricating and/or the propulsion fluid, comprising a monolithic body (8) provided with two ducts (9, 10) intended to be fed by respective sources of said fluids and a fitting (17) intended to be removably fixed in the said body, comprising two coaxial passageways intended to communicate with one and the other respectively of said ducts (9, 10) of the body and the end of which is connected to the nozzel, charaterized by the fact that this body (8) comprises several parallel bores (11) perpendicular to the ducts (9, 10), these bores (11) ending in one (10) of the ducts and tangentially cutting the other (9), and by the fact that at least one of the said bores is adapted to receive the removable fitting.
Patent CH-656129-A5 (CH)
Title: Milbemycin D derivatives for controlling plant pests and ectoparasites on animals
Inventor: FREI BRUNO DR
IPC: A01N43/90
Filed: 1983-11-02
Abstract: Photochemical isomers of milbemycin D and milbemycin D derivatives of the formulae <IMAGE>  in which A denotes <IMAGE>  or <IMAGE>  X denotes <IMAGE>  or <IMAGE>  and Y denotes hydrogen or hydroxyl, are described, as are processes for their preparation, agents which contain these compounds as the active component, and their use in the control of pests.
Patent CH-568373-A5 (CH)
Title: Fibre-reactive disazo dyes - contg copper atoms and s-triazine rings
IPC: C09B62/04
Filed: 1972-02-03
Abstract: Cpds. have formula (where X's are independently H or SO3H, Y is (m)ethyl or Cl, Z's are independently halogen, R1 and R2 are H or lower alkyl) and are used for dyeing and printing silk, leather, wool polyamide polyurethane and esp. cellulosics partic. cotton, in strong green or blue shades with good fastness to light, moisture and washing. They are prepd. by reacting a diazo cpd. of 2-aminonaphthalene-4,8-disulphonic acid, 1-amino-8-hydroxynaphthalene-3,6-disulphonic acid, 2,4,6-trihalo 1,3,5-triazine, 1,3-phenylene diamine and a copper source, opt. in presence of an oxidising agent.
Patent BE-1000861-A5 (BE)
Title: Tube imageur.
IPC: H01J31/50
Filed: 1987-06-17
Granted: 1989-04-25
Abstract: Un tube imageur dans lequel une image, en particulier dans l'infrarouge moyen, est guidée sur une mosaique d'éléments semi-conducteurs électriquement séparés, et dans lequel de l'énergie alors appliquée produit des électrons présentant des caractéristiques indiquant s'ils proviennent d'une partie de la mosaique frappée par de l'énergie définissant l'image, ces électrons étant alors aiguillés selon leurs caractéristiques; et en particulier dans lequel la mosaique présente un substrat à travers lequel l'image est introduite dans le tube.
Patent CH-626448-A5 (CH)
Title: Braking test stand for vehicles
Inventor: GABRIEL RETO
IPC: G01L5/28
Filed: 1977-09-07
Abstract: In order to be able to measure the braking force acting on the wheel (14), the wheel (14) is driven onto the carriage (1) of the braking test stand (3). The vehicle (15) is now braked on the carriage (1). As a result, the carriage (1) of the test stand (3) is displaced against the action of a calibrated compression spring (4) in such a way that a piston (5a) moving in a liquid cylinder (5) presses into a calibrated measuring tube (8) a quantity of liquid proportional to the braking force. The braking force of the measured wheel can be read off directly on said tube. <IMAGE>
Patent CH-621970-A5 (CH)
Title: Insulating composite paper
Inventor: VADASZ MARGRIT
IPC: B32B15/12
Filed: 1977-09-13
Abstract: An insulating composite paper is proposed the laminated structure of which consists of two paper layers (1, 2) and a metal foil or metallised plastic film (3) arranged between them in the manner of a sandwich. This insulating composite paper is suitable in particular for coating walls as a substrate for a wallpaper to be subsequently applied or as insulating wallpaper if one paper layer (1) is already designed as wallpaper. <IMAGE>
Patent CH-599493-A5 (CH)
Title: Connecting nozzle for air conditioning plant ducts
Inventor: AHLROT AKE
IPC: F16L21/02
Filed: 1975-09-16
Abstract: Connecting nozzle for air conditioning plant ducts has trapped sealing ring with projecting flange compensating duct movements
Patent CH-603291-A5 (CH)
Title: Adjustable wall mounted support for machine tool
Inventor: LECHOT ANDRE
IPC: B23B45/14
Filed: 1976-10-28
Abstract: Adjustable wall mounted support for machine tool has cantilever frame sliding on horizontal rails which are mounted to slide on vertical rails
Patent CH-606546-A5 (CH)
Title: Hollow wall ribbed flange for warp beam
Inventor: DITTRICH HORST
IPC: D02H13/30
Filed: 1975-12-08
Abstract: A warp beam flange has a ring-shaped cavity between its hub and its rim in which hollow ribs extend radially and have cavity walls joined together both in the outer and in the inner zones of the ring.  The strength of the cavity walls increases radially from the outside inwards to reach the full wall profile at the hub, in which there are openings.  The wall thickness of the ribs in the cavity also increases radially from the outside inwards.The load bearing capability of the new flange is four times that of the older type and double that of hollow wall flanges. The new flange can accommodate up to 95% of the load of solid flanges whilst having only 40% of their weight.  Thus, for the same amt. of material the resistance of the new flange is two and half times that of the solid flange.
Patent FR-2036424-A5 (FR)
Title: Bonding polyolefins to metal using peroxides
IPC: C08K5/56
Filed: 1969-03-13
Granted: 1970-12-24
Abstract: Polyolefins are bonded to metals using peroxides by a method involving coating with powdered polyolefins at 250-350 degrees C. The polyolefins are mixed with 0.1-1% by wt. peroxide of formula (R1)mMe(OOR2)n or (R1)pMe-OO-Me(R1)p (where R1=alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkyl, or aralkyl. The gp. OOR2 can also be replaced by -O-Me(OOR2)(R1)m. Me is Si, Ge, Sn, Pb, As or Sb; m is 0-4; n is 1-4; p is 3 or 4; and m+n is 4 or 5). These substances are blended at room heat, or by thermoplasticising the polyolefin or by dispersing, suspending or dissolving the peroxide component.
Patent FR-2044267-A5 (FR)
Title: Separator for fuels from water
IPC: B01D17/02
Filed: 1969-05-14
Granted: 1971-02-19
Abstract: Raw liquid comprising water and entrained petroleum products is fed via an inlet to a distribution chamber filled with coalescing agents such as Raschig rings or carbon and housed in a large chamber. The liquid is dispersed tangentially to the liquid in the chamber. Petroleum products lighter than water are removed from the surface via an over flow pipe and treated water is led off by a pierced duct extending over the base area of the chamber.
Patent FR-2050929-A5 (FR)
Title: Annealing process for strip by induction - heating
IPC: C21D9/60
Filed: 1969-06-30
Granted: 1971-04-02
Abstract: Induction heating process for ferromagnetic strip material comprises heating by hyesteresis losses, not by eddy currents, thus avoiding damage by overheating and avoiding the use of temperature controls or protection for the stip. The strip is passed through an inductor in the form of a flattened spiral which forms part of a circuit connected to an H.F. generator. The spiral is of such dimensions that there is loose coupling between it and the strip to reduce the induced eddy currents to a minimum. The maximum temp. reached is limited to the Curie point of the metal.
Patent FR-2053886-A5 (FR)
Title: Tubular plastic preforms
IPC: B29C48/09
Filed: 1969-07-22
Granted: 1971-04-16
Abstract: Tubular plastic preforms are produced by subjecting the plastic material to a mechanical mixing and grinding treatment followed by homogenisation before injecting or extruding the preofrms. Used for producing tubular plastic preforms for blow moulding bottles, esp. bottles with a content of one litre or more. the preliminary treatment improves the viscosity and uniformity of the plastic material, so that large sized preforms can be produced rapidly and economically.
Patent FR-2063777-A5 (FR)
Title: Benzimidazole derivs prepn
IPC: C07D235/32
Filed: 1969-10-30
Granted: 1971-07-09
Abstract: Benzimidazole derivs. of formula (I) (where R is one or more halogen, alkyl, aryl, alkoxy, alkylthio, CN or NO2, R' is aryl, heteroaryl opt. substd. by one or more halogen, alkyl, phenyl, alkoxy, alkylthio, cyano, nitro; R" is alkyl, alkenyl, aralkyl, aralkenyl, phenyl, naphthyl, or heteroaryl opt. substd. by one or more halogen, alkyl, phenyl, alkoxy, alkylthio, CN or nitro; Y and Z are O or S; X is halogen) are prepd. by the treatment of a derivative of (I) in which the -CZ-YR" is replaced by H, with firstly the cpd. XCZ-X e.g. phosgene and secondly with the cpd. R"-YH.
Patent FR-2038884-A5 (FR)
Title: Vacuum corporation of protective metal - on to jet units
IPC: C23C14/24
Filed: 1970-02-26
Granted: 1971-01-08
Abstract: A cloud of vaporised coating material passes from a molten bath to the carrier to be coated. The coating is condensed at the carrier by thermally reflecting emitted atoms at a small angle. Specifically, the reflector consists of tantalum alloy.
Patent FR-2086775-A5 (FR)
Title: Metal boride prodn - from sulphide/selenide by treatment with hydrogen and boron cpd
IPC: C01B35/04
Filed: 1970-04-08
Granted: 1971-12-31
Abstract: Transition metal borides of Gp. III-VIIA and VIII esp. Y, Ln, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Co, Ni, are prepd. by reacting the respective sulphides or selenides with a gaseous mixture of H2 and B-cpd. at 500-1200 degrees C., pref. a borane, BCl3, amorphous or crystal-line boron. The process is effected at relatively low temp. compared with prior art (1500-2000 degrees C.) and the product is much purer and of finer particle size, suitable for use as refractory, abrasive, neutron absorbent, catalyst, thermoionic, superconducting or electronically conducting material.
Patent FR-2088827-A5 (FR)
Title: Glass fibre reinforced plastic sheets prodn
IPC: B29C70/38
Filed: 1970-04-27
Granted: 1972-01-07
Abstract: The sheets are produced using an appts. which has a bridge which can be moved in a direction across its width, a carriage which can move along the bridge and has a forming head for placing and consolidating glass fibre fleeces and impregnating them with a binder, the head being rotatable around a vertical axis through the carriage and fixable in a desired direction, and a reversible motor for simultaneously moving the bridge and the carriage at velocities having a predefined ratio. The method gives large size glass fibre reinforced plastic structures with a uniform strength in all directions. The glass fibre layers can be placed in lengthwise, diagonal and transverse directions. Prodn. of panels and other structures for roofs, partitions, ships, automobiles and aircraft is possible.
Patent FR-2066333-A5 (FR)
Title: Hydrogen peroxide prod at igh temp
IPC: C01B15/026
Filed: 1970-10-21
Granted: 1971-08-06
Abstract: Hydrogen peroxide prodn. at high temp. Production of H2O2 by air oxidation of a 2 degrees alcohol (e.g. isopropyl alcohol) at >=165 degrees C, in the presence of an inert solvent such as an acetate ester (nC3H7.O.COCH3) and in the absence of heavy metal ions. The process is pref. carried out under sufficient pressure to maintain the reaction mixt. in the liquid phase (50-2000 lb. in.-2). Reduced production of organic peroxides results, making the process safer.
Patent FR-2173383-A5 (FR)
Title: Pipe connection - with rigid support with openings between pipe flange and flange of plastic sleeve inside pipe
IPC: F16L23/12
Filed: 1972-02-22
Granted: 1973-10-05
Abstract: Pipe has a rigid external cover having a first end on which is fitted a flange (A) for connecting to a similar flange, and a sleeve of synthetic polymer which is subject to cold flow and possesses a flange (B) adjacent to the first end of the pipe, the flange (B) extending parallel to and being supported by the flange (A) of the pipe, while a rigid support with multiple openings is disposed between the flange (B) of the sleeve and the flange (A) of the pipe, the openings of the support contg. the material of the sleeve flange and being in contact with the latter. The provision of the rigid support prevents the formation of faults as a result of the slow deformation of the material of the sleeve in the flange zone when the pipe is subjected to temps. approaching the softening temp. of the internal sleeve.
Patent AT-511187-A5 (AT)
Title: Polypeptidmaterial aus elastin-ähnlichen Segmenten und Coiled-Coil Segmenten
IPC: C12N15/62
Filed: 2009-10-12
Abstract: Die Erfindung stellt Polypeptidmaterial, zusammengesetzt aus mindestens einem Elastin-ähnlichen Segment und mindestens zwei Segmenten zur Bildung von Doppelwendeln dar, und optional noch einer funktionellen Polypeptiddomäne. Die Elastinähnlichen Segmente aber stellen mindestens vier für Elastin typische Wiederholungen dar. Die Erfindung bezieht sich auf die Anwendung von Polypeptidmaterial zur Wachstumsbeschleunigung von Zellen, Gewebe und Organen, zur Differenzierung von Zellen, der Wachstumshemmung von Pathogenen, zur Behandlung von lebendem menschlichen oder tierischen Gewebe und als medizinisches und pharmazeutisches Material, das zur Behandlung von Lebendgewebe von Nutzen sein wird
Patent DD-109986-A5 (DD)
IPC: C25B1/46
Filed: 1974-02-26
Abstract: An improved method and apparatus for the electrolysis of ionizable chemical compounds is disclosed including specifically a process for the production of chlorine and caustic soda containing low concentrations of sodium chloride by the electrolysis of brine which comprises electrolyzing brine solutions in a two compartment cell equipped with a cathode and an anode separated by permselective barrier formed by sandwiching together two or more membranes consisting essentially of a hydrolyzed copolymer of tetrafluoroethylene and a sulfonated perfluorovinyl ether having the formula FSO2CF2CF2OCF(CF3)CF2OCF=CF2 said copolymer having an equivalent weight of from about 900 to about 1600. By the use of a multilayer membrane sandwich as the barrier the caustic current efficiency of the process is increased over that obtained when a single layer membrane is used as the barrier separating the cathode and anode.
Patent DD-146343-A5 (DD)
Title: Verfahren und einrichtung zur roentgenstrahlenemissionsanalyse von materialproben
Inventor: BACSO JOZSEF
IPC: G01N23/22
Filed: 1979-09-27
Abstract: Die Erfindung betrifft ein Verfahren und eine Einrichtung mit mehreren Kanaelen zur Roentgenstrahlenemissionsanalyse von Materialproben, wobei die Konzentration bestimmter Elemente anhand der charakteristischen Roentgenstrahlung in den zu pruefenden Materialproben festgestellt wird. Mit der Erfindung soll eine schnelle Analyse unter geringem technischem Aufwand ermoeglicht werden, wobei fuer die notwendigen Arbeiter kein hochqualifiziertes Bedienungspersonal erforderlich sein soll. Das Wesen des neuen Verfahrens besteht darin, dasz die Meszkanaele in der fuer die Pruefbedingungen erforderlichen Anzahl und deren Meszbedingungen durch einen entsprechend programmierten Kleinstrechner ausgewaehlt und die Konzentrationswerte anhand der in den Meszkanaelen auftretenden Meszergebnisse errechnet werden. In der zur Durchfuehrung des Verfahrens bestimmten Einrichtung werden die Kanaele durch einen Mikroprozessor ausgewaehlt.
Patent DD-148343-A5 (DD)
Title: Herstellungsverfahren fuer verbindungen aus uebergangsmetallhalogeniden mit erdalkalimetallhalogeniden
Inventor: GRECO ALBERTO
IPC: C01G49/00
Filed: 1980-01-08
Abstract: Die Erfindung betrifft ein Herstellungsverfahren fuer Verbindungen aus Uebergangsmetallhalogeniden mit Erdalkalimetallhalogeniden. Ziel der Erfindung ist, solche Verbindungen herzustellen, die als Bestandteil in Katalysatorsystemen fuer die Polymerisation aethylmischungesaettigter Verbindungen geeignet sind. Erfindungsgemaesz werden Verbindungen hergestellt, die einer der folgenden allgemeinen Strukturformeln entsprechen: 1)&M'&ind2!O&ins2y!CL&ind2!(x+1)!&exp2-!&MLz!&exp2+! 2)&M'O&indy!CI&ind(x+1)!L'!&ind2-!&MLz!&exp2+! worin die Summe (2y+x) die Wertigkeit von M' darstellt, bei dem es sich um das Uebergangsmetall oder um Aluminium handelt, y die Werte 0 oder 1 hat, und x jeden erforderlichen Wert haben kann, derart, dasz um das Metall M' und zusammen mit dem Liganden L, der sich von einer der vorstehenden Phosphorverbindungen ableitet und mit Sauerstoff die Koordinationszahl fuer die stabilste Konfiguration von M' in demWertigkeitszustand, in dem es in die Formulierung eintritt, erreicht wird; M das Erdalkalimetall bedeutet und z seine Koordinationszahl darstellt und L' ein Halogenatom oder den Liganden L bedeutet.
Patent DD-150782-A5 (DD)
Title: Steuerdrehschiebereinrichtung
Inventor: TISCHER WERNER
IPC: F15B13/02
Filed: 1980-04-16
Abstract: Waehrend das Ziel der Erfindung in der Bereitstellung einer hohe Gebrauchswerteigenschaften aufweisenden Steuerdrehschiebereinrichtung liegt, besteht die Aufgabe darin, eine Steuerdrehschiebereinrichtung fuer Rotationskolbenmaschinen mit einem kompakten Aufbau zu schaffen, die einfach und kostensparend herstellbar ist. Als Loesung ist nunmehr eine fluchtende oder nahezu fluchtende Anordnung von Verteilerlaengsnuten 29, 30 zweier Systeme 27, 28 vorgesehen, wobei die von Axialkanaelen 35 ausgehenden und in die Innenbohrung 3A des Gehaeuses 3 einmuendenden, dem einen System 27 von Verteilerlaengsnuten zugeordneten Steueroeffnungen 36 an ihren Einmuendungen in die Innenbohrung 3A versetzt zu den Einmuendungen der von den entsprechenden Axialkanaelen 35 ausgehenden und in die Innenbohrung 3A des Gehaeuses 3 einmuendenden, dem anderen System 28 von Verteilerlaengsnuten 30 zugeordneten Steueroeffnungen 37 angeordnet sind.
Patent DD-156431-A5 (DD)
Title: Zusammensetzung von fluorierten copolymeren zum hydrophobieren und oleophobieren von substraten und verfahren zu ihrer herstellung
Inventor: DESSAINT ANDRE
IPC: C09D133/04
Filed: 1981-02-17
Abstract: Zusammensetzung von fluorierten Copolymeren bestehend aus a)35 bis 98% eines oder mehrerer polyfluorierter Monomerer der allgemeinen Formel I, in der R tief f einen perfluorierten Rest, Q ein Sauerstoff- oder Schwefelatom, B ein ueber ein Kohlenstoffatom an Q gebundenes zweiwertiges Kettenglied, eine der Gruppen R ein Wasserstoffatom und die andere Gruppe R ein Wasserstoffatom oder eine Alkylgruppe bedeuten;b) 1 bis 15% eines oder mehrerer Monomerer, bestehend aus Acrylaten oder Methacrylaten von Aminoalkoholen, wie z.B. 2-Dimethylaminoaethanol;c) 1 bis 50% eines oder mehrerer N-Vinyl-2-pyrrolidone;d) bis zu 10% Verbindungen, die mindestens eine aethylenische Bindung und mindestens eine reaktive Gruppe aufweisen;zum Hydrophobieren und/oder Oleophobieren von Papier, Karton, Pappe und aehnlichen Materialien sowie ein Verfahren zur Herstellung dieser Copolymere.
Patent DD-201663-A5 (DD)
Title: Vorrichtung zum vereinzeln von montageteilen
Inventor: STICHT WALTER
IPC: B65G47/14
Filed: 1981-09-29
Abstract: Die Erfindung betrifft eine Vorrichtung zum Vereinzeln und gegebenenfalls Zufuehren von verhaengten oder aneinander haftenden Montageteilen, die auf dem Gebiet der Teilezufuehrung bzw.der Montagemaschine zum Einsatz kommt. Ziel der Erfindung ist es, eine Vorrichtung der vorstehenden Art so auszubilden, dass die Vereinzelung der in Klumpen zusammenhaengenden Teile ueber Mitnahmeorgane in eine Relativbewegung zueinander versetzt werden, die durch das Eigengewicht dieser Teile verstaerkt wird, sodass sich diese einzelnen Teilgruppen bzw. Teile von Klumpen bzw. der Teilgruppe loesen. Die Aufgabe besteht darin, eine Vorrichtung zu schaffen, bei der beide Lockerungsvorrichtungen Mitnahmeorgane zum lockeren Abheben bzw. Transportieren einer Teilmenge des Montageteilklumpens und bzw. oder von Montageteilgruppen umfassen. Erfindungsgemaess umfassen bei dieser Vorrichtung zum Vereinzeln beide Lockerungsvorrichtungen Mitnahmeorgane zum Lockern, Abheben bzw. Transportieren einer Teilmenge des Montageteilklumpens und bzw. oder von Montageteilgruppen.
Patent DD-202170-A5 (DD)
Title: Verfahren zur herstellung von polymerisaten mit seitenstaendig gebundenen polykylenoxidketten
Inventor: FOCK JUERGEN
IPC: C09K23/42
Filed: 1982-03-09
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von Polymerisaten mit seitenstaendig gebundenen Polyalkylenoxidketten, wobei man Polyalkylenoxide mit mindestens zwei freien Hydroxylgruppen am Startalkohol, wobei die Hydroxylgruppen durch hoechstens drei Kohlenstoffatome voneinander getrennt sind und wobei die am abgewendeten Ende der Polyalkylenoxidkette befindliche Hydroxylgruppe, gegebenenfalls reversibel, blockiert ist, mit in bezug auf die Hydroxylgruppen am Startalkohol reaktiven di- oder polyfunktionellen Verbindungen in einer oder mehreren Stufen, gegebenenfalls in Gegenwart von Loesungsmitteln und/oder Katalysatoren und/oder bei erhoehten Temperaturen, umsetzt. Die erfindungsgemaess hergestellten Verbindungen zeichnen sich durch hohe Grenzflaechenaktivitaet aus und sind auch bei hoeheren Molekulargewichten relativ niedrig viskos.